CN204082692U - A kind of low-noise level transformer blower fan - Google Patents
A kind of low-noise level transformer blower fan Download PDFInfo
- Publication number
- CN204082692U CN204082692U CN201420490892.3U CN201420490892U CN204082692U CN 204082692 U CN204082692 U CN 204082692U CN 201420490892 U CN201420490892 U CN 201420490892U CN 204082692 U CN204082692 U CN 204082692U
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- CN
- China
- Prior art keywords
- inner core
- blower fan
- urceolus
- slip ring
- impeller
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Abstract
The utility model discloses a kind of low-noise level transformer blower fan, comprise the impeller be connected on motor output shaft of a motor, also comprise a circular inner tube, urceolus and a flange plate, the cylindrical shell of inner core is provided with several apertures gathered, one end of inner core has a slip ring extended out, impeller is placed near slip ring place, and the slip ring end of inner core is the intake grill of blower fan; One end of urceolus is connected with the most outer of the slip ring of inner core, and the other end of urceolus is connected with the other end of inner core by flange plate, and the gap between urceolus and inner core is placed with sound absorbing material.By arranging an inner core and a urceolus, and the gap between inside and outside cylinder is placed with sound absorbing material, greatly reduces the noise of blower fan under the prerequisite not changing blower fan axial dimension; And the intake grill of blower fan is arranged on the one end near impeller, the existing heat radiation utilizing motor, also saves the installing space of transformer cooler, is also conducive to the maintenance of motor simultaneously.
Description
Technical field
The utility model relates to a kind of ventilator, relates to a kind of low-noise level transformer blower fan transformer being blown to heat radiation specifically.
Background technique
High-power transformer, because operationally producing a large amount of heats, for ensureing the normal work of transformer, needs supporting one or more ventilator to carry out exhausting heat radiation to the radiating fin of transformer usually.Existing transformer blower fan is generally common axial fan, there is an air duct, motor and an impeller be fixed on motor output shaft being fixed on center in air duct, the exhaust outlet of usual blower fan is positioned at the one end near impeller, the reverse side of impeller is towards motor, during installation, the radiating fin of the motor side of blower fan towards transformer, cause the thickness of whole radiation system larger, larger space need be taken, simultaneously, also be unfavorable for the heat radiation of motor, easily cause motor to burn because of overheated.And, although existing transformer blower fan is relatively simple for structure, but when reality uses, although impeller its noise after optimal design has fallen many, but the requirement of environment to noise cannot be met, if external one section of silencing pot on air duct, the multiplication of blower fan volume, the loss of air quantity air quantity can be caused again comparatively large, can not meet the cooling effect of transformer, most of installation environment cannot be met.
Model utility content
For overcoming above-mentioned defect, the utility model significantly reduces its noise under aiming to provide a kind of prerequisite not changing blower fan outline dimension and is conducive to saving safety space and the transformer blower fan protecting motor.
For achieving the above object, the technical solution adopted in the utility model is: a kind of low-noise level transformer blower fan, comprise the impeller be connected on motor output shaft of a motor, also comprise a circular inner tube, a circular outer cylinder and a circular flange sheet, the cylindrical shell of described inner core is provided with several apertures gathered, one end of described inner core has a slip ring extended out, and described impeller is placed near slip ring place, and the slip ring end of described inner core is the intake grill of blower fan; One end of described urceolus is connected with the most outer of the slip ring of inner core, and the other end of described urceolus is connected with the other end of inner core by flange plate, and the gap between described urceolus and inner core is placed with sound absorbing material; Two ends of described urceolus have outside flange edge respectively, wherein on the flange edge of slip ring one end of inner core, have the connecting screw hole be uniformly distributed along the circumference; Described flange plate is connected with a safety cage.
Have employed low-noise level transformer blower fan of the present utility model, by arranging an inner core and a urceolus, and the gap between inside and outside cylinder is placed with sound absorbing material, greatly reduces the noise of blower fan under the prerequisite not changing blower fan axial dimension; And the intake grill of blower fan is arranged on the one end near impeller, the existing heat radiation utilizing motor, also saves the installing space of transformer cooler, is also conducive to the maintenance of motor simultaneously.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of urceolus;
Fig. 3 is the structural representation of inner core;
Fig. 4 is the partial enlarged drawing of Fig. 1.
In figure: 1-motor, 2-impeller, 3-inner core, 4-slip ring, 5-intake grill, 6-flange edge, 7-connecting screw hole, 8-safety cage, 9-flange plate, 10-urceolus, 11-radiator.
Embodiment
As Figure 1-Figure 4, the utility model discloses a kind of low-noise level transformer blower fan, comprise the impeller 2 be connected on motor output shaft of a motor 1, its innovative point is mainly that described low-noise level transformer blower fan also comprises a circular inner tube 3, a circular outer cylinder 10 and a circular flange sheet 9, the cylindrical shell of described inner core 3 is provided with several apertures gathered, usual available porous slab is by roller machine processing inner core 3, one end of described inner core 3 has a slip ring extended out 4, described impeller 2 is placed near slip ring 4 place, slip ring 4 end of described inner core 3 is the intake grill 5 of blower fan, slip ring 4 can make the air-flow entering inner core 3 more smooth and easy, one end of described urceolus 10 is connected with the most outer of slip ring 4 of inner core 3, the other end of described urceolus 10 is connected by the other end of flange plate 9 with inner core 3, gap between described urceolus 10 and inner core 3 is placed with sound absorbing material, is equivalent to make inner core 3 and urceolus 10 form a silencing pot.Usually, described urceolus 10 needs coaxial installation with inner core 3, and the gap thickness between urceolus 10 with inner core 3 needs consistent.
During concrete installation, first inner core 3 is coaxially placed in urceolus 10, makes the most outer of the slip ring 4 of one end of urceolus 10 and inner core 3 collide tactile, and pass through the mode handle places of touching such as welding and be welded to connect; Then sound absorbing material is filled in gap between urceolus 10 and inner core 3 from the other end, after filling up sound absorbing material Deng the gap between urceolus 10 and inner core 3, flange plate 9 is coupled together the other end of urceolus 10 with inner core 3 by modes such as welding, also the sound absorbing material of the gap between urceolus 10 and inner core 3 is closed simultaneously, prevents it from leaking; After this again motor 1 and impeller 2 are fixed in inner core 3, just complete the installation of low-noise level transformer blower fan.Slip ring 4 end due to described inner core 3 is the intake grill 5 of blower fan, during installation, this end of intake grill 5 is fixed on the radiator 11 of transformer.
For improving rigidity and the circularity of urceolus 10, also be the installation for the ease of blower fan simultaneously, two ends of the urceolus 10 of low-noise level transformer blower fan of the present utility model have outside flange edge 6 respectively, wherein on the flange edge 6 of slip ring 4 one end of inner core 3, there is the connecting screw hole 7 be uniformly distributed along the circumference, by connecting screw hole 7, blower fan can be connected on the radiator 11 of transformer.Usual flange edge 6 is rectangular with the cylindrical shell of urceolus 10.
For preventing birds winged insect from entering in the air duct 3 of blower fan, being also the Security in order to improve blower fan simultaneously, the flange plate 9 of low-noise level transformer blower fan described in the utility model being connected with a safety cage 8.Safety cage 8 is connected on flange plate 9 by bolted mode, so that dismounting, and the convenient maintenance to motor 1 and impeller 2 and replacing.
Claims (1)
1. a low-noise level transformer blower fan, comprise the impeller (2) be connected on motor output shaft of a motor (1), it is characterized in that it also comprises a circular inner tube (3), a circular outer cylinder (10) and a circular flange sheet (9), the cylindrical shell of described inner core (3) is provided with several apertures gathered, one end of described inner core (3) has a slip ring extended out (4), described impeller (2) is placed near slip ring (4) place, and slip ring (4) end of described inner core (3) is the intake grill (5) of blower fan; One end of described urceolus (10) is connected with the most outer of the slip ring (4) of inner core (3), the other end of described urceolus (10) is connected by the other end of flange plate (9) with inner core (3), and the gap between described urceolus (10) and inner core (3) is placed with sound absorbing material; Two ends of described urceolus (10) have outside flange edge (6) respectively, wherein on the flange edge (6) of slip ring (4) one end of inner core (3), have the connecting screw hole (7) be uniformly distributed along the circumference; Described flange plate (9) is connected with a safety cage (8).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420490892.3U CN204082692U (en) | 2014-08-29 | 2014-08-29 | A kind of low-noise level transformer blower fan |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420490892.3U CN204082692U (en) | 2014-08-29 | 2014-08-29 | A kind of low-noise level transformer blower fan |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204082692U true CN204082692U (en) | 2015-01-07 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420490892.3U Active CN204082692U (en) | 2014-08-29 | 2014-08-29 | A kind of low-noise level transformer blower fan |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204082692U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757033A (en) * | 2018-06-04 | 2018-11-06 | 中铁第四勘察设计院集团有限公司 | A kind of protection door system with ventilation equipment |
-
2014
- 2014-08-29 CN CN201420490892.3U patent/CN204082692U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108757033A (en) * | 2018-06-04 | 2018-11-06 | 中铁第四勘察设计院集团有限公司 | A kind of protection door system with ventilation equipment |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |