CN201355745Y - Corona charging device of electret - Google Patents
Corona charging device of electret Download PDFInfo
- Publication number
- CN201355745Y CN201355745Y CNU2009201133556U CN200920113355U CN201355745Y CN 201355745 Y CN201355745 Y CN 201355745Y CN U2009201133556 U CNU2009201133556 U CN U2009201133556U CN 200920113355 U CN200920113355 U CN 200920113355U CN 201355745 Y CN201355745 Y CN 201355745Y
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- Prior art keywords
- fan
- conduction roller
- electret
- shaped seal
- roller
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Abstract
The utility model relates to a corona charging device of an electret, which comprises string wires, a fan-shaped insulating device, a conducting roller and a support table; insulating plates are respectively arranged above two ends of the support table, the fan-shaped insulating device and the conducting roller are arranged between the two insulating plates, the fan-shaped insulating device is positioned over the conducting roller, a plurality of parallel hollow slots are arranged on the fan-shaped insulating device along the circumference, the string wires are arranged in the hollow slots, and the string wires and the conducting roller are respectively and electrically connected with a high voltage power supply. The corona charging device can carry out high-efficiency corona charging, effectively regulate the polarity of the corona charging and realize the optimal selection of thin-film or nonwoven cloth corona charging.
Description
(1) technical field
The utility model relates to a kind of electret charger, particularly prepares the charger of film type electret or non-woven fabric electret.
(2) background technology
Non-woven fabric electret as material for air purification have the filter efficiency height, resistance is little and advantage such as antibiotic.Obtained extensive use at aspects such as life science and clinical medicine and depollution of environment engineerings over nearly two, 30 years.
United States Patent (USP) 5401446 has disclosed a kind of device that carries out the static corona charging on film.This device carries out the static corona charging at the cooling film, during corona charging, film needs through two contact rods and two cylinders, when contact rod is electronegative, first kept man of a noblewoman of film is earlier by negative electrical charge charging and then positive charge charging, and second kept man of a noblewoman of film is earlier by positive charge charging and then negative electrical charge charging; When the contact rod positively charged, first kept man of a noblewoman of film is earlier by positive charge charging and then negative electrical charge charging, and second kept man of a noblewoman of film is earlier by negative electrical charge charging and then positive charge charging.This patent points out that the electric charge that this method can significantly improve film is detained and filter efficiency.
(3) utility model content
Technical problem to be solved in the utility model provide a kind of technology simple, can continuously produce electret charger, particularly film type electret and non-woven fabric electret by effective regulation and control with stable electret.
Described electret charger comprises string silk, fan-shaped seal, conduction roller and brace table, top, described brace table two ends is respectively equipped with insulation board, fan-shaped seal and conduction roller are installed between two insulation boards, fan-shaped seal is positioned at directly over the conduction roller, described fan-shaped seal upper edge is circumferentially with some parallel hollow grooves, the string silk places hollow groove, and string silk and conduction roller are electrically connected with high voltage source respectively.
Further, described conduction roller both sides are respectively equipped with some tensioning rollers.
Further, described adjacent hollow groove is equidistant each other.Like this, the string silk that is installed in the hollow groove is also equidistant each other.
Further, described conduction roller comprises the first conduction roller and the second conduction roller that horizontal parallel is provided with, and is provided with the tensioning roller between the first conduction roller and the second conduction roller; Described fan-shaped seal comprises first fan-shaped seal that cooperates with the first conduction roller and the second fan-shaped seal that cooperates with the second conduction roller, respectively is provided with the string silk on the first fan-shaped seal and the second fan-shaped seal.
Described be arranged on the fan-shaped seal the string silk can for single, also can be many; The string silk can adopt iron wire, nickel wire, steel wire, copper wire, spun gold of chromium plating etc.; Polarity between string silk and the conduction roller can exchange mutually.
Further, described conduction roller is the confined air core structure.So just can improve the stability of charging back electret with cold and hot air feeding wherein with cooling or heating film or nonwoven fabrics.
The described high voltage source electric current way of output can be constant current, constant voltage, constant pressure and flow, can provide the forceful electric power of opposed polarity to press.The preparation material of insulation board is yellow wax plate, ceramic wafer, polyethylene board and polyfluortetraethylene plate etc.
Adopt structure of the present utility model and material, can produce following beneficial effect:
1. adopted fan-shaped seal, can regulate the quantity of string silk, distance between the string silk and the distance between string silk and film or the nonwoven fabrics according to different films or nonwoven fabrics, make chargeable area increase greatly, thereby reach the purpose of high efficiency corona charging;
2. can effectively regulate the polarity of corona charging, promptly identical or opposite by changing the electric polarity of string silk and conduction roller, can make the charge polarity that injects in the film that obtains or non-woven fabric electret two sides;
3. the controllable adjustment that can pass through normal temperature, intensification or the cooling method of reversing, the high voltage source current/voltage way of output and roller between string silk and the roller realizes the optimization selection of film or nonwoven fabrics corona charging;
4. the conduction roller adopts the confined air core structure, has improved the stability of charging back electret.
(4) description of drawings
Fig. 1 is the longitudinal sectional view of described film of embodiment or nonwoven fabrics charger;
Fig. 2 is the transverse sectional view of described film of embodiment or nonwoven fabrics charger.
(5) embodiment
Below in conjunction with drawings and Examples the utility model is described in further detail, but the protection range of this patent is not limited to this.
With reference to Fig. 1, Fig. 2, a kind of electret charger, comprise string silk 4, fan-shaped seal 6, conduction roller 1 and brace table 5, top, described brace table 5 two ends is respectively equipped with insulation board 3, fan-shaped seal 6 and conduction roller 1 are installed between two insulation boards 3, and fan-shaped seal 6 is positioned at directly over the conduction roller 1, and described fan-shaped seal 6 upper edges are circumferentially with some parallel hollow grooves, string silk 4 places hollow groove, and string silk 4 and conduction roller 1 are electrically connected with high voltage source respectively.
Described conduction roller both sides are respectively equipped with some tensioning rollers 2.
Described adjacent hollow groove is equidistant each other.
Described conduction roller 1 comprises the first conduction roller and the second conduction roller that horizontal parallel is provided with, and is provided with the tensioning roller between the first conduction roller and the second conduction roller; Described fan-shaped seal 6 comprises first fan-shaped seal that cooperates with the first conduction roller and the second fan-shaped seal that cooperates with the second conduction roller, on the first fan-shaped seal and the second fan-shaped seal 5 string silks is set respectively.
Described string silk 4 can be electric conducting materials such as iron wire, nickel wire, and adopt the structure of many strings silk, when they are connected with high voltage source, can produce the corona discharge phenomenon, the ion that is formed by corona ionization in the atmosphere during corona discharge will be injected in film or the nonwoven fabrics 7; By regulating the width that string silk 4 can change between the string silk, the height between string silk and the conduction roller; The conduction roller be the confined air core structure, feed cold and hot air can make film or nonwoven fabrics under the situation of normal temperature, low temperature or heating by corona charging; Identical or opposite by changing the electric polarity of string silk and conduction roller, can make the charge polarity that injects in the film that obtains or non-woven fabric electret two sides.
Specifically, connect the high voltage source negative pole as string silk 4, belong to the negative polarity corona, the anion that produces during corona discharge is injected into first 7a of nonwoven fabrics 7, has applied additional reversed electric field on the roller, and second 7b of nonwoven fabrics 7 is injected into positive charge; Connect high-voltage power cathode as string silk 4, belong to the positive polarity corona, the cation that produces during corona discharge is injected into first 7a of nonwoven fabrics 7, has applied additional reversed electric field on the conduction roller, and second 7b of nonwoven fabrics 7 is injected into negative electrical charge.
Claims (6)
1, a kind of electret charger, it is characterized in that: described electret device comprises string silk, fan-shaped seal, conduction roller and brace table, top, described brace table two ends is respectively equipped with insulation board, fan-shaped seal and conduction roller are installed between two insulation boards, fan-shaped seal is positioned at directly over the conduction roller, described fan-shaped seal upper edge is circumferentially with some parallel hollow grooves, and the string silk places hollow groove, and string silk and conduction roller are electrically connected with high voltage source respectively.
2, electret charger as claimed in claim 1 is characterized in that: described conduction roller both sides are respectively equipped with some tensioning rollers.
3, electret charger as claimed in claim 1 is characterized in that: described adjacent hollow groove is equidistant each other.
4, electret charger as claimed in claim 2 is characterized in that: described adjacent hollow groove is equidistant each other.
5, as the described electret charger of one of claim 1～4, it is characterized in that: described conduction roller comprises the first conduction roller and the second conduction roller that horizontal parallel is provided with, and is provided with the tensioning roller between the first conduction roller and the second conduction roller; Described fan-shaped seal comprises first fan-shaped seal that cooperates with the first conduction roller and the second fan-shaped seal that cooperates with the second conduction roller, respectively is provided with the string silk on the first fan-shaped seal and the second fan-shaped seal.
6, electret charger as claimed in claim 1 is characterized in that: described conduction roller is the confined air core structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201133556U CN201355745Y (en) | 2009-01-22 | 2009-01-22 | Corona charging device of electret |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2009201133556U CN201355745Y (en) | 2009-01-22 | 2009-01-22 | Corona charging device of electret |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201355745Y true CN201355745Y (en) | 2009-12-02 |
Family
ID=41412085
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2009201133556U Expired - Fee Related CN201355745Y (en) | 2009-01-22 | 2009-01-22 | Corona charging device of electret |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201355745Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905101A (en) * | 2010-07-30 | 2010-12-08 | 杭州电子科技大学 | Method for preparing melt-blown polypropylene electret filter material |
| CN103231812A (en) * | 2013-04-23 | 2013-08-07 | 中国科学院电工研究所 | Device capable of adjusting common ground electric polarity of spacecraft |
| CN111554801A (en) * | 2020-05-11 | 2020-08-18 | 山东非金属材料研究所 | Continuous polarization method for organic piezoelectric film |
-
2009
- 2009-01-22 CN CNU2009201133556U patent/CN201355745Y/en not_active Expired - Fee Related
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101905101A (en) * | 2010-07-30 | 2010-12-08 | 杭州电子科技大学 | Method for preparing melt-blown polypropylene electret filter material |
| CN101905101B (en) * | 2010-07-30 | 2012-03-21 | 杭州电子科技大学 | Method for preparing melt-blown polypropylene electret filter material |
| CN103231812A (en) * | 2013-04-23 | 2013-08-07 | 中国科学院电工研究所 | Device capable of adjusting common ground electric polarity of spacecraft |
| CN103231812B (en) * | 2013-04-23 | 2015-05-20 | 中国科学院电工研究所 | Device capable of adjusting common ground electric polarity of spacecraft |
| CN111554801A (en) * | 2020-05-11 | 2020-08-18 | 山东非金属材料研究所 | Continuous polarization method for organic piezoelectric film |
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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: 20091202 Termination date: 20180122 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |