CN2145646Y - High-voltage power supply for electrostatic field of air purifier - Google Patents
High-voltage power supply for electrostatic field of air purifier Download PDFInfo
- Publication number
- CN2145646Y CN2145646Y CN 92220519 CN92220519U CN2145646Y CN 2145646 Y CN2145646 Y CN 2145646Y CN 92220519 CN92220519 CN 92220519 CN 92220519 U CN92220519 U CN 92220519U CN 2145646 Y CN2145646 Y CN 2145646Y
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- CN
- China
- Prior art keywords
- power supply
- voltage
- air purifier
- circuit
- voltage power
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
- 230000005686 electrostatic field Effects 0.000 title description 5
- 230000005684 electric field Effects 0.000 claims abstract description 6
- 238000004804 winding Methods 0.000 claims abstract description 4
- 238000001914 filtration Methods 0.000 claims description 5
- 239000003990 capacitor Substances 0.000 claims description 3
- 238000005367 electrostatic precipitation Methods 0.000 claims description 2
- 239000012717 electrostatic precipitator Substances 0.000 claims description 2
- 230000010355 oscillation Effects 0.000 abstract 1
- 238000004519 manufacturing process Methods 0.000 description 5
- 230000007423 decrease Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 241001270131 Agaricus moelleri Species 0.000 description 1
- 230000003321 amplification Effects 0.000 description 1
- 230000015572 biosynthetic process Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000008034 disappearance Effects 0.000 description 1
- 239000000428 dust Substances 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000003199 nucleic acid amplification method Methods 0.000 description 1
- 230000001954 sterilising effect Effects 0.000 description 1
- 238000004659 sterilization and disinfection Methods 0.000 description 1
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- Electrostatic Separation (AREA)
Abstract
A high-voltage power supply for electrostatic dust-removing electric field of indoor air purifier is characterized by that a black-and-white TV line output transformer with windings L1, L2, L3 and L4 is connected to oscillation, boosting and alarm circuit. The power supply has the advantages of small volume, convenient debugging, strong universality of components and low cost.
Description
The utility model relates to the electrostatic field high voltage source and makes the field.
The filtering type air purifier is owing to exist the shortcoming that the gas flow resistance is big, fan noise is big, dust containing capacity is little, in use there is inconvenience, for this reason, Japan, Canada development and production go out the electrostatic air purifier of a new generation, but partly a large amount of integrated circuit, the line construction complexity of adopting of the high voltage source of these electrostatic air purifiers, the production debug process is long, the manufacturing cost height, components and parts interchangeability is poor, is difficult to organize at home production.
In view of the above shortcoming of prior art, the purpose of this utility model is, design a kind of safe and reliable, volume is little, cost is low, the indoor air cleaner high voltage source of components and parts highly versatile, and makes it to have concurrently short circuit, over-voltage over-current protection function.
The purpose of this utility model is to realize by following means.
Use in the high voltage source at air purifier electrostatic precipitation electric field shown in Figure 1, the black and white television set of tool winding L 1, L2, L3, L4 is inserted in oscillating circuit, booster circuit and the warning circuit with line output transformer, its L1 is connected across between the colelctor electrode and base stage of oscillating tube VD1, L2 is connected across between the emitter stage and base stage of VD1, L4 and resistance R 204, R203, diode D202 and capacitor C 202 composition rectifying and wave-filterings and reduction voltage circuit provide base voltage for triode VD201, and L3 links to each other with the electrostatic precipitator electrode.
Fig. 1 is the utility model embodiment circuit diagram, and by finding out among the figure, the π type smothing filtering that grid alternating current is formed through D101, D102 full-wave rectification and C103, R101, C104 through the transformer step-down again provides the direct-current working volts about about 18V.This voltage is added on the oscillating tube VD1 colelctor electrode through the L1 of line output transformer, simultaneously, direct-current working volts are added to suitable positive bias on the VD1 base stage by R201, this moment, base current i injected base stage, VD1 begins conducting, collector current i is by L1, along with the growth of ic, produces the upper end at the L1 two ends for just, the lower end is negative induced voltage, cooperate by T102, also produce induced voltage at the L2 two ends, its polarity is base stage for just, this moment, ib increased, cause Vbe to increase, VD1 enters the saturation conduction state rapidly, and forms the pulse voltage forward position.
After VD1 entered saturation conduction, collector voltage remained unchanged, and had so just formed the flat-top part of pulse voltage.
In base loop, because the reverse charging of capacitor C 201, polarity is last just bearing down, opposite with L2 both end voltage polarity, ib will reduce gradually, when ib=ic/ β, thereby the decline of the base potential of VD1 is withdrawed from the saturation region and is entered the amplification region, along with the continuation decline of ib, the induced voltage of primary changes direction, makes VD1 be become by conducting and ends, and the back edge of formation pulse voltage, form square wave, this square wave pulse voltage adds to electric field (load) again after L3 boosts to 6000V～9000V, and keeps constant voltage.
VD201 is a warning circuit, when working properly, this circuit is because reverse bias works in cut-off state, so D201 does not work, during overweight or high voltage arc, high pressure reduces, and the L4 induced voltage reduces when load, VD201 is in positively biased and conducting, then D201 is luminous, reminds the user not have high pressure and produces, and should clean electric field or send and repair processing.
Rectifying and wave-filtering that the VD201 base voltage is made up of L4, R204, R203, D202 and C202 etc. and reduction voltage circuit provide.
In addition, because this circuit adopted self-oscillation, overweight or high voltage arc (instantaneous short circuit) occurs when reaching a certain degree when load, L2 winding two ends induced voltage reduces rapidly, vibration is stopped, thereby played the self-shield effect.After load normal (short circuit disappearance), high pressure energy automatically restores to normal value.
In this embodiment, output voltage 6～9KV, electric current 1.5mA is with honeycomb-when the needle bar electrostatic field was used, the corona at needle bar needle-like section generation continous-stable had comparatively ideal dedusting, sterilization effect.
The utility model is except that power transformer and electric field, and all components and parts can be contained on the printed circuit board of a 70 * 100mm, and volume is little, can satisfy the needs of all kinds of indoor air cleaner electrostatic fields.Two debug points of R201, R202 (heighten piezoelectricity for one and press, another heightens piezoelectricity stream) are only arranged in circuit, equipment and quality of workers are not had specific (special) requirements, so have stronger productivity, suitable production quantitatively.
The utility model adopts the self-maintained circuit with overload self-shield, compares with independent-excited vibration scheme, has saved loaded down with trivial details holding circuit, thereby has greatly simplified circuit, has reduced cost.
Claims (1)
1, a kind of indoor air cleaner electrostatic precipitation electric field high voltage source, it is characterized in that, have winding L 1, L2, L3, L4, black and white television set with line output transformer insert vibration, boost and warning circuit in, wherein L1 is connected across between oscillating tube VD1 colelctor electrode and the base stage, and L2 is connected across between the emitter stage and base stage of VD1; L4 and resistance R 204, R203, diode D202 and capacitor C 202 composition rectifying and wave-filterings and reduction voltage circuit provide base voltage for triode VD201; L3 links to each other with the electrostatic precipitator electrode.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92220519 CN2145646Y (en) | 1992-10-15 | 1992-10-15 | High-voltage power supply for electrostatic field of air purifier |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 92220519 CN2145646Y (en) | 1992-10-15 | 1992-10-15 | High-voltage power supply for electrostatic field of air purifier |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2145646Y true CN2145646Y (en) | 1993-11-10 |
Family
ID=33767543
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 92220519 Expired - Fee Related CN2145646Y (en) | 1992-10-15 | 1992-10-15 | High-voltage power supply for electrostatic field of air purifier |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2145646Y (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101557879B (en) * | 2006-12-15 | 2011-12-28 | 松下电工株式会社 | Electrostatic atomizer |
| CN107716108A (en) * | 2017-09-30 | 2018-02-23 | 北京东方计量测试研究所 | A kind of electrostatic air purification dust collecting electrode electric charge release control device and disposal box |
-
1992
- 1992-10-15 CN CN 92220519 patent/CN2145646Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN101557879B (en) * | 2006-12-15 | 2011-12-28 | 松下电工株式会社 | Electrostatic atomizer |
| CN107716108A (en) * | 2017-09-30 | 2018-02-23 | 北京东方计量测试研究所 | A kind of electrostatic air purification dust collecting electrode electric charge release control device and disposal box |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |