CN202468368U - Inner rotor cooling fan for variable-frequency motor - Google Patents
Inner rotor cooling fan for variable-frequency motor Download PDFInfo
- Publication number
- CN202468368U CN202468368U CN2012200307425U CN201220030742U CN202468368U CN 202468368 U CN202468368 U CN 202468368U CN 2012200307425 U CN2012200307425 U CN 2012200307425U CN 201220030742 U CN201220030742 U CN 201220030742U CN 202468368 U CN202468368 U CN 202468368U
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- Prior art keywords
- fan blade
- inner rotor
- rotor motor
- motor
- fan
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Abstract
The utility model relates to an inner rotor cooling fan for a variable-frequency motor, which is characterized by comprising a cylinder and an inner rotor motor; a machine base is arranged at one end of the cylinder; the inner rotor motor is arranged in the cylinder, and the rear end of the inner rotor motor is fixedly installed on the machine base; a fan blade is fixedly installed at the output shaft end of the inner rotor motor, is a plastic fan blade and comprises a fan blade disc; a plurality of fan blade sheets are uniformly arranged on the outer circumference of the fan blade disc; the fan blade disc comprises an inner stator and a bracket ring; and a plurality of uniformly-arranged inner fan blade sheets are arranged between the inner stator and the bracket ring. The inner rotor cooling fan has the beneficial effects that the plastic fan blade is adopted, the structure is simple, the one-time injection molding can be achieved, the manufacturing is convenient, the manufacturing cost is reduced, the inner fan blade sheets are arranged for cooling the inner rotor motor self, the cooling effect of the inner rotor motor self is improved, and the service life of the inner rotor motor is prolonged; and as a wire protection tube is arranged on the machine base, a leading-out line of the motor is protected, the potential safety hazards are reduced, and the use safety of the fan is ensured.
Description
Technical field
The utility model relates to a kind of cooling blower, especially relates to a kind of variable-frequency motor and uses the internal rotor cooling blower.
Background technique
Variable-frequency motor is used the internal rotor cooling blower, and its inner rotor motor drives the fan blade rotation, and fan blade is fixedly mounted on inner rotor motor output axle head.Fan blade is welded on the fan blade disc by air blade made of iron usually and constitutes; Need to process through manual welding; Manufacturing efficiency is low, and manufacture cost is high, needs to rely on the air-flow that cooling blower produced for cooling of inner rotor motor itself simultaneously; Cooling effect is relatively poor, thereby influences the working life of inner rotor motor.In addition, the inner rotor motor lighting outlet directly is fixed on the support with nylon cable tie, and nylon cable tie comes off easily, causes lighting outlet to fly out, and exists potential safety hazard, possibly cause the person and property loss.
The model utility content
The applicant has carried out research and improved to above-mentioned problem, provides a kind of variable-frequency motor to use the internal rotor cooling blower, and is simple in structure, easily manufactured, promotes the cooling effect to inner rotor motor itself, prolongs the working life of inner rotor motor.
In order to solve the problems of the technologies described above, the utility model adopts following technological scheme:
A kind of variable-frequency motor is used the internal rotor cooling blower; Comprise cylindrical shell and inner rotor motor; One end of said cylindrical shell is provided with support, and terminal box is arranged on the outside of said air duct, and said inner rotor motor is arranged in the said cylindrical shell; The rear end of said inner rotor motor is fixedly mounted on the said support, and fan blade is fixedly mounted on the output axle head of said inner rotor motor; Said fan blade is a plastic blade, and said fan blade comprises fan blade disc, and said fan blade disc is rounded, and several air blades evenly are arranged on the excircle of said fan blade disc; Said fan blade disc comprises inner stator and support ring, is provided with the interior air blade that is used to cool off said inner rotor motor that several evenly are provided with between said inner stator and the support ring.
Further:
Said air blade is fixedly mounted on the excircle of said fan blade disc through screw-nut.
Said air blade and said fan blade disc are injection molded into integrative-structure.
The inner side surface of said support is provided with thread-protected tube radially, and the lighting outlet of said inner rotor motor passes said thread-protected tube and is connected to said terminal box.
The technique effect of the utility model is:
The disclosed a kind of variable-frequency motor of the utility model is used the internal rotor cooling blower, adopts plastic blade, and is simple in structure; Can an injection molded; Easily manufactured, reduce manufacture cost, air blade is used for the cooling of inner rotor motor itself in being provided with; Lifting prolongs the working life of inner rotor motor to the cooling effect of inner rotor motor itself; Further, thread-protected tube is set on the support, protection motor lighting outlet is avoided the generation of problems such as the motor lighting outlet flies out, and reduces potential safety hazard, guarantees the Security that blower fan uses.
Description of drawings
Fig. 1 is the structural representation of the utility model.
Fig. 2 is the plan view of support.
Fig. 3 is the left view of Fig. 2.
Fig. 4 is the structural representation of plastic blade.
Fig. 5 is the three-dimensional structure schematic representation of fan blade disc.
Embodiment
Below in conjunction with accompanying drawing the embodiment of the utility model is done further detailed explanation.
Like Fig. 1,2, shown in 3, the utility model comprises cylindrical shell 1 and inner rotor motor 4, and terminal box 2 is arranged on the outside of air duct 1; One end of cylindrical shell 1 is equipped with support 3, and support 3 usefulness aluminium die casting form, and support 3 is provided with vent hole 302; The inner side surface of support 3 is provided with thread-protected tube 301 radially; The lighting outlet of inner rotor motor 4 passes thread-protected tube 301 and is connected to terminal box 2, and thread-protected tube 301 can avoid the motor lighting outlet to fly out, and reduces potential safety hazard.Inner rotor motor 4 is arranged in the cylindrical shell 1, and the rear end of inner rotor motor 4 is installed on the support 3 through screw, and fan blade 5 is fixedly mounted on the output axle head of inner rotor motor 4.
In use, the utility model is installed in the variable-frequency motor, inner rotor motor 4 in the running, the air-flow that air blade 7 produces is used to cool off variable-frequency motor, the air-flow that interior air blade 602 produces plays the effect of cooling inner rotor motor 4.
Claims (4)
1. a variable-frequency motor is used the internal rotor cooling blower; It is characterized in that: comprise cylindrical shell and inner rotor motor; One end of said cylindrical shell is provided with support, and terminal box is arranged on the outside of said air duct, and said inner rotor motor is arranged in the said cylindrical shell; The rear end of said inner rotor motor is fixedly mounted on the said support, and fan blade is fixedly mounted on the output axle head of said inner rotor motor; Said fan blade is a plastic blade, and said fan blade comprises fan blade disc, and said fan blade disc is rounded, and several air blades evenly are arranged on the excircle of said fan blade disc; Said fan blade disc comprises inner stator and support ring, is provided with the interior air blade that is used to cool off said inner rotor motor that several evenly are provided with between said inner stator and the support ring.
2. use the internal rotor cooling blower according to the described variable-frequency motor of claim 1, it is characterized in that: said air blade is fixedly mounted on the excircle of said fan blade disc through screw-nut.
3. use the internal rotor cooling blower according to the described variable-frequency motor of claim 1, it is characterized in that: said air blade and said fan blade disc are injection molded into integrative-structure.
4. use the internal rotor cooling blower according to the described variable-frequency motor of claim 1, it is characterized in that: the inner side surface of said support is provided with thread-protected tube radially, and the lighting outlet of said inner rotor motor passes said thread-protected tube and is connected to said terminal box.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200307425U CN202468368U (en) | 2012-01-31 | 2012-01-31 | Inner rotor cooling fan for variable-frequency motor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012200307425U CN202468368U (en) | 2012-01-31 | 2012-01-31 | Inner rotor cooling fan for variable-frequency motor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202468368U true CN202468368U (en) | 2012-10-03 |
Family
ID=46916529
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012200307425U Expired - Fee Related CN202468368U (en) | 2012-01-31 | 2012-01-31 | Inner rotor cooling fan for variable-frequency motor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202468368U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757525A (en) * | 2018-07-13 | 2018-11-06 | 株洲联诚集团控股股份有限公司 | A kind of axial flow blower |
-
2012
- 2012-01-31 CN CN2012200307425U patent/CN202468368U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757525A (en) * | 2018-07-13 | 2018-11-06 | 株洲联诚集团控股股份有限公司 | A kind of axial flow blower |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20121003 Termination date: 20150131 |
|
| EXPY | Termination of patent right or utility model |