CN219953736U - Inner rotor cooling fan for variable frequency motor - Google Patents
Inner rotor cooling fan for variable frequency motor Download PDFInfo
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- CN219953736U CN219953736U CN202321336327.7U CN202321336327U CN219953736U CN 219953736 U CN219953736 U CN 219953736U CN 202321336327 U CN202321336327 U CN 202321336327U CN 219953736 U CN219953736 U CN 219953736U
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- inner rotor
- driving shaft
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- 238000001816 cooling Methods 0.000 title claims abstract description 28
- 230000001105 regulatory effect Effects 0.000 claims abstract description 19
- 238000009826 distribution Methods 0.000 claims description 11
- 238000004140 cleaning Methods 0.000 abstract description 4
- 238000000034 method Methods 0.000 abstract description 4
- 230000008569 process Effects 0.000 abstract description 2
- 241000883990 Flabellum Species 0.000 description 22
- 230000000694 effects Effects 0.000 description 8
- 238000010586 diagram Methods 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 3
- 238000009434 installation Methods 0.000 description 2
- 238000012423 maintenance Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000000903 blocking effect Effects 0.000 description 1
- 238000007664 blowing Methods 0.000 description 1
- 238000006243 chemical reaction Methods 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000011161 development Methods 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000004880 explosion Methods 0.000 description 1
- 230000006870 function Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 230000007774 longterm Effects 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 230000009711 regulatory function Effects 0.000 description 1
- 239000011435 rock Substances 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000010865 sewage Substances 0.000 description 1
- 230000035939 shock Effects 0.000 description 1
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Abstract
The utility model discloses an inner rotor cooling fan for a variable frequency motor, which relates to the field of cooling fans and comprises an air duct shell, wherein a speed regulating motor is arranged in the air duct shell, one side of the speed regulating motor is provided with a driving shaft, one side of the driving shaft is provided with a plurality of groups of fan blades, the fan blades are circularly distributed on one side of the driving shaft, one side of the driving shaft is provided with a fan connecting piece, one side of the driving shaft is provided with a fan turntable, one side of the fan blades is provided with two groups of fastening bolts, and the two groups of fastening bolts are symmetrically distributed on one side of the fan blades. According to the utility model, the fan blades are installed in a threaded manner through the plurality of groups of fastening bolts and the fastening threaded holes on the fan turntable, and the fan blades are limited through the limiting slots and the positioning blocks, so that the stability of the fan blade structure is ensured, the noise generated by shaking in the rotating process is avoided, and meanwhile, the threaded structure is convenient for a user to detach, and further facilitates the cleaning operation of the user on the fan blades.
Description
Technical Field
The utility model relates to the field of cooling fans, in particular to an inner rotor cooling fan for a variable frequency motor.
Background
With the rapid development of power electronic technology and novel semiconductor devices, the alternating current speed regulation technology is continuously perfected and improved, and the gradually perfected variable frequency motor is widely applied to the alternating current motor with good output waveform and excellent cost performance.
But the variable frequency motor can produce a large amount of heat at the inside coil of long-time working process, and can influence variable frequency motor's normal work when the heat is too high, serious can lead to variable frequency motor damage and then produce open fire and cause the conflagration, consequently use in variable frequency motor can use cooling fan to guarantee variable frequency motor's cooling in, but current fan is generally whole fixed, therefore comparatively troublesome when carrying out cooling fan's maintenance.
Such as the patent: a cooling fan (publication number: CN 216699678U) for a variable frequency motor comprises a shell, wherein a plurality of evenly distributed guide grooves are formed in the front side position of the inner surface of the shell, a shell is arranged in the position, close to the front side, of the shell, through the arrangement of the guide grooves, a cross block, the shell, a driving motor and bolts, the position fixing of the shell is conveniently achieved through the sliding connection of a connecting piece and the guide grooves, the placement of a single driving machine is further achieved, the position fixing of the cross block is conveniently achieved through the arranged bolts, meanwhile, the relative position fixing of the driving motor and the shell is achieved through the sliding connection of the cross block and the front surface of the shell, the removal of the cross block is conveniently achieved through the removal of the bolts, the sliding of the shell and the connecting piece is achieved, and the removal and the overhaul of the driving motor are further conveniently achieved.
The above-mentioned patent is accomplished the taking down maintenance of being convenient for realize driving motor, but the flabellum structure in the above-mentioned patent is inconvenient to detach, and the dust is gone up in easy adhesion in the flabellum long-term rotation, consequently the staff need regularly clear up the flabellum, and the flabellum does not set up the dismantlement structure in the above-mentioned device, need clear up after dismantling with the motor is whole when the clearance, and the inside damage that leads to of motor is flowed into to sewage when the clearance effect is incomplete. Therefore, it is necessary to invent an inner rotor cooling fan for a variable frequency motor to solve the above problems.
Disclosure of Invention
The utility model aims to provide an inner rotor cooling fan for a variable frequency motor, which aims to solve the problem that the fan blade structure is inconvenient to detach in the background technology.
In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides an inner rotor cooling fan for inverter motor, includes the dryer shell, the inside of dryer shell is provided with speed-adjusting motor, one side of speed-adjusting motor is provided with the drive shaft, one side of drive shaft is provided with multiunit fan flabellum, multiunit fan flabellum is circular distribution in one side of drive shaft, one side of drive shaft is provided with the fan connecting piece, one side of drive shaft is provided with the fan carousel, one side of fan carousel is provided with the location cap, one side of fan flabellum is provided with two sets of fastening bolt, two sets of fastening bolt is symmetrical distribution in one side of fan flabellum.
Preferably, a motor controller is arranged at the top of the speed regulating motor, and a power input line is arranged at one side of the motor controller.
Preferably, the inside of dryer shell is provided with the fixing base, one side of fixing base is provided with multiunit locating lever, multiunit the locating lever is circular distribution in one side of fixing base, one side of locating lever is provided with fixing bolt, multiunit fixed screw hole has been seted up in the outside of speed governing motor, multiunit fixed screw hole is circular distribution in the outside of speed governing motor.
Preferably, a rubber strip is arranged on one side of the positioning rod.
Preferably, a cross connecting rod is arranged on one side of the air duct shell.
Preferably, a plurality of groups of limiting slots are formed in one side of the fan turntable, the plurality of groups of limiting slots are distributed circularly on one side of the fan turntable, two groups of fastening threaded holes are formed in the inner wall of the limiting slots, and the two groups of fastening threaded holes are distributed symmetrically on the inner wall of the limiting slots.
Preferably, a plurality of groups of positioning blocks are arranged on the outer side of the positioning cap, the plurality of groups of positioning blocks are distributed in a circular shape on the outer side of the positioning cap, positioning protrusions are arranged on one side of the positioning blocks, and positioning grooves are formed in one side of the fan blade.
The utility model has the technical effects and advantages that:
1. the device has used fan flabellum, fan connecting piece, fan carousel, location cap, spacing slot, fastening bolt, fastening screw hole, locating piece, location arch and constant head tank, thereby make the device accessible fan carousel on multiunit fastening bolt and fastening screw hole carry out threaded mounting to the fan flabellum, and spacing to the fan flabellum through spacing slot and locating piece, thereby guaranteed the stability of fan flabellum structure, avoided rocking in rotatory in-process and produced noise and not possible, simultaneously this threaded structure is convenient for the dismantlement of user, further facilitate the cleaning operation of user to the fan flabellum;
2. the device has used fixing base, locating lever, rubber strip, fixing bolt, fixed screw hole and cross connecting rod to make the last fixing bolt of device accessible locating lever carry out threaded mounting with fixed screw hole to speed governing motor, and be connected with the dryer shell through cross connecting rod, and can be the speed governing motor shock attenuation when increasing speed governing motor's connection effect through the rubber strip, guaranteed the device's efficiency of blowing when having improved the device fixed effect.
Drawings
In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.
Fig. 1 is a schematic diagram of the overall structure of an inner rotor cooling fan for a variable frequency motor.
Fig. 2 is an explosion structure schematic diagram of an inner rotor cooling fan for a variable frequency motor.
Fig. 3 is a schematic side view of an inner rotor cooling fan for a variable frequency motor.
Fig. 4 is a schematic diagram of a fan blade of an inner rotor cooling fan for a variable frequency motor according to the present utility model.
In the figure: 1. an air duct housing; 2. a speed regulating motor; 3. a drive shaft; 4. fan blades; 5. a motor controller; 6. a power supply input line; 7. a fan connector; 8. a fan turntable; 9. a fixing seat; 10. a positioning rod; 11. a rubber strip; 12. a fixing bolt; 13. fixing the threaded holes; 14. a cross connecting rod; 15. positioning caps; 16. a limit slot; 17. a fastening bolt; 18. fastening the threaded hole; 19. a positioning block; 20. positioning the bulge; 21. and a positioning groove.
Detailed Description
In order to make the objects, technical solutions and advantages of the embodiments of the present utility model more clear, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model. Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.
In the description of the present utility model, it should be noted that, directions or positional relationships indicated by terms such as "center", "upper", "lower", "vertical", "horizontal", "inner", "outer", etc., are directions or positional relationships based on those shown in the drawings, or those that are conventionally put in use of the inventive product, are merely for convenience of describing the present utility model and simplifying the description, and do not indicate or imply that the apparatus or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "first," "second," "third," and the like are used merely to distinguish between descriptions and should not be construed as indicating or implying relative importance.
Furthermore, the terms "horizontal," "vertical," and the like do not denote a requirement that the component be absolutely horizontal or overhang, but rather may be slightly inclined. As "horizontal" merely means that its direction is more horizontal than "vertical", and does not mean that the structure must be perfectly horizontal, but may be slightly inclined.
In the description of the present utility model, it should also be noted that, unless explicitly specified and limited otherwise, the terms "disposed," "mounted," "connected," and "connected" are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
The utility model provides an inner rotor cooling fan for a variable frequency motor, which is shown in figures 1-4, and comprises an air duct shell 1, wherein a speed regulating motor 2 is arranged in the air duct shell 1, the speed regulating motor 2 provides power for fan blades 4 of the device, one side of the speed regulating motor 2 is provided with a driving shaft 3, the driving shaft 3 is a main driving part of the speed regulating motor 2, one side of the driving shaft 3 is provided with a plurality of groups of fan blades 4, the fan blades 4 are circularly distributed on one side of the driving shaft 3, one side of the driving shaft 3 is provided with a fan connecting piece 7, the fan connecting piece 7 can connect a fan turntable 8 with the driving shaft 3, one side of the driving shaft 3 is provided with a fan turntable 8, the fan turntable 8 provides connection for the fan blades 4, one side of the fan turntable 8 is provided with a positioning cap 15, the positioning cap 15 plays a role in positioning and limiting the fan blades 4, one side of the fan blades 4 is provided with two groups of fastening bolts 17, the two groups of fastening bolts 17 are symmetrically distributed on one side of the fan blades 4, and the two groups of fastening bolts 17 are main body mounting components of the fan blades 4.
The top of speed governing motor 2 is provided with motor controller 5, and one side of motor controller 5 is provided with power input line 6, and wherein motor controller 5 accessible adjusts the electric current of power input line 6 input and adjusts speed governing motor 2 to speed governing motor 2's rotational speed regulatory function has been realized, and then the practicality of the device has been increased.
The inside of dryer shell 1 is provided with fixing base 9, one side of fixing base 9 is provided with multiunit locating lever 10, multiunit locating lever 10 is circular distribution in one side of fixing base 9, one side of locating lever 10 is provided with fixing bolt 12, multiunit fixed screw hole 13 has been seted up in the outside of speed governing motor 2, multiunit fixed screw hole 13 is circular distribution in the outside of speed governing motor 2, wherein multiunit locating lever 10 is speed governing motor 2 fixed body subassembly, the preliminary location when conveniently installing speed governing motor 2, the setting of its multiunit has increased the fixed effect to speed governing motor 2 simultaneously, wherein fixing bolt 12 can carry out threaded connection with fixing screw hole 13, thereby the further fixed to speed governing motor 2 has been realized.
One side of the positioning rod 10 is provided with a rubber strip 11, wherein the rubber strip 11 is made of rubber, the friction force between the positioning rod 10 and the speed regulating motor 2 is increased by using the rubber strip 11, and the speed regulating motor 2 can be damped when the speed regulating motor 2 is started, so that noise is reduced.
One side of the dryer shell 1 is provided with a cross connecting rod 14, wherein the use of the cross connecting rod 14 increases the stability of the structure of the speed regulating motor 2, and meanwhile, the cross arrangement of the cross connecting rod can reduce the blocking to the air inlet, so that the cooling efficiency of the device is improved.
The fan turntable 8 has a plurality of groups of spacing slots 16 on one side, the spacing slot 16 of multiunit is circular distribution in one side of fan turntable 8, two sets of fastening screw holes 18 have been seted up to the inner wall of spacing slot 16, two sets of fastening screw holes 18 are symmetrical distribution in the inner wall of spacing slot 16, wherein the seting up of the spacing slot 16 of multiunit can peg graft with fan flabellum 4, thereby can carry out spacingly to fan flabellum 4, avoided it to rock the condition that leads to connection structure not hard up in the rotation in-process, the production of noise has been reduced simultaneously, wherein fastening screw hole 18 can carry out threaded connection with fastening bolt 17, the fixed effect of connected mode to fan flabellum 4 of this pair of convenience of customers needs the dismantlement operation when clearing up fan flabellum 4, and then for the user has saved the time cost.
The outside of location cap 15 is provided with multiunit locating piece 19, multiunit locating piece 19 is circular distribution in the outside of location cap 15, and one side of locating piece 19 is provided with location arch 20, and constant head tank 21 has been seted up to one side of fan flabellum 4, and wherein multiunit locating piece 19 can carry out preliminary location to fan flabellum 4 when fan flabellum 4 installs, and the convenience is fixed to the next step of fan flabellum 4, and wherein location arch 20 can be connected with constant head tank 21 to further increased the stability of fan flabellum 4 structure after the installation when having increased the location effect.
Working principle: when the device is installed, the back of the speed regulating motor 2 is inserted into the positioning rod 10, the rubber strip 11 on the side surface of the positioning rod 10 increases the connection effect of the positioning rod 10 and the speed regulating motor 2 due to stress deformation when the speed regulating motor 2 is inserted, the fixing bolt 12 is rotated into the corresponding fixing threaded hole 13 when the back of the speed regulating motor 2 is completely contacted with the fixing seat 9, so that the fixed installation of the speed regulating motor 2 is completed, then the fan blade 4 is inserted into the limit slot 16 on the fan turntable 8, when the fan blade 4 is completely inserted, the positioning protrusion 20 on the positioning block 19 is completely inserted into the positioning slot 21 on the fan blade 4, so that the primary positioning of the fan blade 4 can be completed, then the fan blade 4 is fixed through the threaded connection of the fastening bolt 17 and the fastening threaded hole 18, and finally the fan turntable 8 is connected with the driving shaft 3 through the fan connecting piece 7, and when the fan blade 4 is required to be cleaned by a user, the fan blade 4 can be pulled out for cleaning only after the fastening bolt 17, so that the convenient disassembly cleaning function of the inner rotor cooling fan for the frequency conversion motor is realized.
The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.
Claims (8)
1. The utility model provides an inner rotor cooling fan for inverter motor, includes dryer shell (1), its characterized in that: the novel fan is characterized in that a speed regulating motor (2) is arranged in the fan drum shell (1), a driving shaft (3) is arranged on one side of the speed regulating motor (2), a plurality of groups of fan blades (4) are arranged on one side of the driving shaft (3), the fan blades (4) are circularly distributed on one side of the driving shaft (3), a fan connecting piece (7) is arranged on one side of the driving shaft (3), a fan turntable (8) is arranged on one side of the driving shaft (3), a positioning cap (15) is arranged on one side of the fan turntable (8), two groups of fastening bolts (17) are arranged on one side of the fan blades (4), and the two groups of fastening bolts (17) are symmetrically distributed on one side of the fan blades (4).
2. The inner rotor cooling fan for a variable frequency motor according to claim 1, wherein: the top of speed governing motor (2) is provided with motor controller (5), one side of motor controller (5) is provided with power input line (6).
3. The inner rotor cooling fan for a variable frequency motor according to claim 1, wherein: the inside of dryer shell (1) is provided with fixing base (9), one side of fixing base (9) is provided with multiunit locating lever (10), multiunit locating lever (10) are circular distribution in one side of fixing base (9), one side of locating lever (10) is provided with fixing bolt (12), multiunit fixed screw hole (13) have been seted up in the outside of speed governing motor (2), multiunit fixed screw hole (13) are circular distribution in the outside of speed governing motor (2).
4. An inner rotor cooling fan for a variable frequency motor according to claim 3, wherein: one side of the positioning rod (10) is provided with a rubber strip (11).
5. The inner rotor cooling fan for a variable frequency motor according to claim 1, wherein: one side of the air duct shell (1) is provided with a cross connecting rod (14).
6. The inner rotor cooling fan for a variable frequency motor according to claim 1, wherein: the fan rotating disc is characterized in that a plurality of groups of limiting slots (16) are formed in one side of the fan rotating disc (8), the limiting slots (16) are circularly distributed on one side of the fan rotating disc (8), two groups of fastening threaded holes (18) are formed in the inner wall of the limiting slots (16), and the two groups of fastening threaded holes (18) are symmetrically distributed on the inner wall of the limiting slots (16).
7. The inner rotor cooling fan for a variable frequency motor according to claim 1, wherein: the outer side of the positioning cap (15) is provided with a plurality of groups of positioning blocks (19), and the plurality of groups of positioning blocks (19) are distributed in a circular shape on the outer side of the positioning cap (15).
8. The inner rotor cooling fan for a variable frequency motor according to claim 7, wherein: one side of the positioning block (19) is provided with a positioning protrusion (20), and one side of the fan blade (4) is provided with a positioning groove (21).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321336327.7U CN219953736U (en) | 2023-05-30 | 2023-05-30 | Inner rotor cooling fan for variable frequency motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321336327.7U CN219953736U (en) | 2023-05-30 | 2023-05-30 | Inner rotor cooling fan for variable frequency motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219953736U true CN219953736U (en) | 2023-11-03 |
Family
ID=88553176
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321336327.7U Active CN219953736U (en) | 2023-05-30 | 2023-05-30 | Inner rotor cooling fan for variable frequency motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219953736U (en) |
-
2023
- 2023-05-30 CN CN202321336327.7U patent/CN219953736U/en active Active
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