CN103633785A - High-shielding-efficiency generator - Google Patents
High-shielding-efficiency generator Download PDFInfo
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- CN103633785A CN103633785A CN201310677264.6A CN201310677264A CN103633785A CN 103633785 A CN103633785 A CN 103633785A CN 201310677264 A CN201310677264 A CN 201310677264A CN 103633785 A CN103633785 A CN 103633785A
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- filter device
- isolation filter
- air
- generator
- stator
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Abstract
The invention discloses a high-shielding-efficiency generator, comprising a front mounting plate, a front end part, a fan, an exhaust isolation filter device, a stretching screw, a shielding cover, a stator, a rotor, an intake isolation filter device, a rear end part, a rear cover, a bearing and a protective cover. The generator is a rotary power supply with high shielding efficiency in an electromagnetic field; alternating current power supply is output after medium-frequency (or power frequency) power generation by virtue of a permanent magnet in the rotor and the stator; a shielding cavity is formed by the front end part, the exhaust isolation filter device, the shielding cover, the stator, the rotor, the intake isolation filter device and the rear end part which are arranged and locked by the stretching screw and is used for achieving shielding of the electromagnetic field of the generator. The ventilating and cooling processes of the generator are as follows: cooling air enters from a shield orifice plate and is guided out by the fan through the intake isolation filter device and the exhaust isolation filter device under the effect of the induced-draft fan. The intake isolation filter device and the exhaust isolation filter device have high shielding efficiency in a broadband electromagnetic field.
Description
Technical field
The present invention relates to a kind of rotary power source, relate in particular to a kind of high screening effectiveness generator.
Background technology
The form of generator is a lot, but its operation principle is all based on law of electromagnetic induction law.Therefore, the rule of its structure is: with suitable magnetic conduction and electric conducting material, form magnetic circuit and the circuit that carries out mutually electromagnetic induction, to produce electromagnetic power, reach the object of power conversion.Like this, generator, when generating, will be accompanied by the radiation of electromagnetic field, and along with the application of generator in mobile communications industry, the electromagnetic field radiation of generator becomes interference source, and communication products can produce noise and affect communication quality because of Electromagnetic Interference.Therefore, must a kind of generator with the high screening effectiveness of electromagnetic field of research.
Summary of the invention
The object of the present invention is to provide a kind of high screening effectiveness generator, it is a kind of rotary power source with high screening effectiveness, by shielding cavity and the outlet and inlet isolation filter device of generator, realizes the high screening effectiveness of wide band electromagnetic field.
The present invention is achieved like this, and it comprises front mounting plate, leading section, fan, air-out isolation filter device, stretching screw, housing, stator, rotor, air intake isolation filter device, rearward end, bonnet, bearing and protective cover, it is characterized in that, the both sides of stator and rotor are respectively equipped with air-out isolation filter device and air intake isolation filter device, the external cylindrical surface of air-out isolation filter device belongs to interference fit with the inner cylinder face of leading section and is connected, between air-out isolation filter device and leading section, be also provided with fan, leading section connects front mounting plate by securing member, and air intake isolation filter device connects rearward end, and rearward end is provided with bonnet by securing member, bearing and protective cover, stator and housing laminate by mould and through being welded, the sub-assembly that stator and housing form, the sub-assembly that air-out isolation filter device and leading section form, the sub-assembly that air intake isolation filter device and rearward end form and rotor have formed a shielding cavity after stretching screw locking, described air intake isolation filter device and air-out isolation filter device be rear and N metal tube welding formation by metallic plate boring, the rotating shaft front end center of described rotor is provided with for matching and accept the bellmouth of engine transmitting rotary power with the diminished shaft of engine.
Technique effect of the present invention is: the present invention has not only solved the ventilation and heat problem of generator but also effectively suppressed electromagnetic radiation problem by N metal tube in air intake isolation filter device and air-out isolation filter device.
Accompanying drawing explanation
Fig. 1 is the structural representation of high screening effectiveness generator.
Fig. 2 is outlet and inlet isolation filter apparatus structure schematic diagram.
Front mounting plate 2, leading section 3, fan 4, air-out isolation filter device 5, stretching screw 6, housing 7, stator 8, rotor 9, air intake isolation filter device 10, rearward end 11, bonnet 12, bearing 13, protective cover in the drawings, 1.
Embodiment
As depicted in figs. 1 and 2, it is by front mounting plate 1, leading section 2, fan 3, air-out isolation filter device 4, stretching screw 5, housing 6, stator 7, rotor 8, air intake isolation filter device 9, rearward end 10, bonnet 11, the compositions such as bearing 12 and protective cover 13, the stator 7 of this generator laminates by mould with housing 6 and through welding, fine finishining forms, air-out isolation filter device 4 all forms for and N metal tube rear by metallic plate boring weld with air intake isolation filter device 9, the external cylindrical surface of air-out isolation filter device 4 and the inner cylinder face of leading section 2 belong to interference fit and are press-fitted formation by moulds of industrial equipment, air intake isolation filter device 9 is to be also press-fitted formation with rearward end 10, by stator 7 and housing 6 sub-assemblies, air-out isolation filter device 4 and leading section 2 sub-assemblies, air intake isolation filter device 9 and rearward end 10 sub-assemblies, rotor 8 grades are installed by certain operation and formed a shielding cavity after stretching screw 5 lockings, in rearward end, by securing member, install by bonnet 11, the sub-assembly that bearing 12 and protective cover 13 form, front end provided with fan 3 at rotor 8 shafts, at leading section, by securing member, front mounting plate 1 is installed, front end center at rotor 8 shafts is provided with bellmouth, and this bellmouth is for matching and accept engine transmitting rotary power with the diminished shaft of engine.
This generator is a kind of rotary power source with high screening effectiveness, permanent magnet in rotor 8 and stator 7 are realized the rear output AC power source of intermediate frequency (or power frequency) generating, by leading section 2, air-out isolation filter device 4, housing 6, stator 7, rotor 8, air intake isolation filter device 9, the installation of rearward end 10 has also formed a shielding cavity after stretching screw 5 lockings, remove into, outside air-out isolation filter device, whole shielding cavity meets airtight conductor condition, air intake isolation filter device 9 forms by metallic plate and N metal tube with air-out isolation filter device 4, this metal tube is equivalent to high-pass filtering pipe, design sectional dimension in different metal tubes and just can obtain different cut-off frequencies, in metal tube, sectional dimension size is inversely proportional to cut-off frequency value, the cut-off frequency of metal tube is wider and electromagnetic attenuation is also larger with respect to the electromagnetic spectrum of the larger decay of the wave frequency that will shield (being generally more than 5 times), the longer electromagnetic attenuation of metal tube length is larger, by controlling metal tube length and cut-off frequency, just can realize the electromagnetic high screening effectiveness of electromagnetic field broadband of generator.
Operation principle of the present invention: under the effect of air inducing fan 3, cooling air is entered by protective cover hole 13 plates, due to the sealing of internal shield cavity, cooling air can only, by N metal tube in air intake isolation filter device 9 and air-out isolation filter device 4, finally be derived by fan.By the design of metal tube inner passage section shape and size is determined to cut-off frequency, making has very large decay lower than the electromagnetic wave of metal tube cut-off frequency through transmission in pipe, realizes the high screening effectiveness of wide band electromagnetic field of air intake isolation filter device 9 and air-out isolation filter device 4.
Claims (3)
1. a high screening effectiveness generator, it comprises front mounting plate, leading section, fan, air-out isolation filter device, stretching screw, housing, stator, rotor, air intake isolation filter device, rearward end, bonnet, bearing and protective cover, it is characterized in that, the both sides of stator and rotor are respectively equipped with air-out isolation filter device and air intake isolation filter device, the external cylindrical surface of air-out isolation filter device belongs to interference fit with the inner cylinder face of leading section and is connected, between air-out isolation filter device and leading section, be also provided with fan, leading section connects front mounting plate by securing member, and air intake isolation filter device connects rearward end, and rearward end is provided with bonnet by securing member, bearing and protective cover, stator and housing laminate by mould and through being welded, the sub-assembly that stator and housing form, the sub-assembly that air-out isolation filter device and leading section form, the sub-assembly that air intake isolation filter device and rearward end form and rotor have formed a shielding cavity after stretching screw locking.
2. a kind of high screening effectiveness generator as claimed in claim 1, is characterized in that, described air intake isolation filter device and air-out isolation filter device be rear and N metal tube welding formation by metallic plate boring.
3. a kind of high screening effectiveness generator as claimed in claim 1, is characterized in that, the rotating shaft front end center of described rotor is provided with for matching and accept the bellmouth of engine transmitting rotary power with the diminished shaft of engine.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310677264.6A CN103633785B (en) | 2013-12-13 | 2013-12-13 | High screening effectiveness generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201310677264.6A CN103633785B (en) | 2013-12-13 | 2013-12-13 | High screening effectiveness generator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN103633785A true CN103633785A (en) | 2014-03-12 |
| CN103633785B CN103633785B (en) | 2016-01-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201310677264.6A Active CN103633785B (en) | 2013-12-13 | 2013-12-13 | High screening effectiveness generator |
Country Status (1)
| Country | Link |
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| CN (1) | CN103633785B (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867292A (en) * | 2014-03-25 | 2014-06-18 | 江西清华泰豪微电机有限公司 | Electromagnetic-compatibility-type low-noise box-type substation |
| CN109975935A (en) * | 2019-04-28 | 2019-07-05 | 西安微电子技术研究所 | A kind of cabinet fiber optic cable interface electromagnetic leakage mechanism design method |
Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5097163A (en) * | 1989-12-22 | 1992-03-17 | Sundstrand Corporation | Electrical power generating system having reduced conducted emissions in output power |
| CN202172315U (en) * | 2011-08-17 | 2012-03-21 | 浙江寰亚电子有限公司 | High power energy saving motor |
| CN202685840U (en) * | 2012-03-09 | 2013-01-23 | 西安伊克赛尔汽车新技术有限公司 | Anti-electromagnetic interference automobile overhead air conditioning device |
| CN102005889B (en) * | 2010-12-02 | 2013-03-27 | 大连依德斯科技有限公司 | Electrically driven equipment with control function of brushless direct current motor |
-
2013
- 2013-12-13 CN CN201310677264.6A patent/CN103633785B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5097163A (en) * | 1989-12-22 | 1992-03-17 | Sundstrand Corporation | Electrical power generating system having reduced conducted emissions in output power |
| CN102005889B (en) * | 2010-12-02 | 2013-03-27 | 大连依德斯科技有限公司 | Electrically driven equipment with control function of brushless direct current motor |
| CN202172315U (en) * | 2011-08-17 | 2012-03-21 | 浙江寰亚电子有限公司 | High power energy saving motor |
| CN202685840U (en) * | 2012-03-09 | 2013-01-23 | 西安伊克赛尔汽车新技术有限公司 | Anti-electromagnetic interference automobile overhead air conditioning device |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103867292A (en) * | 2014-03-25 | 2014-06-18 | 江西清华泰豪微电机有限公司 | Electromagnetic-compatibility-type low-noise box-type substation |
| CN103867292B (en) * | 2014-03-25 | 2016-06-08 | 江西清华泰豪微电机有限公司 | A kind of formula power station, electromagnetic compatibility type low noise railway carriage or compartment |
| CN109975935A (en) * | 2019-04-28 | 2019-07-05 | 西安微电子技术研究所 | A kind of cabinet fiber optic cable interface electromagnetic leakage mechanism design method |
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| Publication number | Publication date |
|---|---|
| CN103633785B (en) | 2016-01-20 |
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Address after: 330096, B building, building 590, hi tech Avenue, Jiangxi, Nanchang Patentee after: JIANGXI TELLHOW MILITARY INDUSTRY GROUP CO., LTD. Address before: 330096, B building, building 590, hi tech Avenue, Jiangxi, Nanchang Patentee before: JIANGXI QINGHUA TAIHAO MICRO MOTOR CO., LTD. |