GB1478303A - High voltage generating apparatus - Google Patents
High voltage generating apparatusInfo
- Publication number
- GB1478303A GB1478303A GB2908373A GB2908373A GB1478303A GB 1478303 A GB1478303 A GB 1478303A GB 2908373 A GB2908373 A GB 2908373A GB 2908373 A GB2908373 A GB 2908373A GB 1478303 A GB1478303 A GB 1478303A
- Authority
- GB
- United Kingdom
- Prior art keywords
- electrode
- output
- voltage
- transformer
- electrostatic
- 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
Links
- 239000011248 coating agent Substances 0.000 abstract 2
- 238000000576 coating method Methods 0.000 abstract 2
- 238000009503 electrostatic coating Methods 0.000 abstract 2
- 239000004033 plastic Substances 0.000 abstract 2
- 229920003023 plastic Polymers 0.000 abstract 2
- 230000001105 regulatory effect Effects 0.000 abstract 2
- 239000007921 spray Substances 0.000 abstract 2
- 235000014676 Phragmites communis Nutrition 0.000 abstract 1
- JRPBQTZRNDNNOP-UHFFFAOYSA-N barium titanate Chemical compound [Ba+2].[Ba+2].[O-][Ti]([O-])([O-])[O-] JRPBQTZRNDNNOP-UHFFFAOYSA-N 0.000 abstract 1
- 229910002113 barium titanate Inorganic materials 0.000 abstract 1
- 239000012530 fluid Substances 0.000 abstract 1
- VJPLIHZPOJDHLB-UHFFFAOYSA-N lead titanium Chemical compound [Ti].[Pb] VJPLIHZPOJDHLB-UHFFFAOYSA-N 0.000 abstract 1
- 229910052754 neon Inorganic materials 0.000 abstract 1
- GKAOGPIIYCISHV-UHFFFAOYSA-N neon atom Chemical compound [Ne] GKAOGPIIYCISHV-UHFFFAOYSA-N 0.000 abstract 1
- 238000000926 separation method Methods 0.000 abstract 1
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B05—SPRAYING OR ATOMISING IN GENERAL; APPLYING FLUENT MATERIALS TO SURFACES, IN GENERAL
- B05B—SPRAYING APPARATUS; ATOMISING APPARATUS; NOZZLES
- B05B5/00—Electrostatic spraying apparatus; Spraying apparatus with means for charging the spray electrically; Apparatus for spraying liquids or other fluent materials by other electric means
- B05B5/08—Plant for applying liquids or other fluent materials to objects
- B05B5/10—Arrangements for supplying power, e.g. charging power
-
- H—ELECTRICITY
- H10—SEMICONDUCTOR DEVICES; ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N—ELECTRIC SOLID-STATE DEVICES NOT OTHERWISE PROVIDED FOR
- H10N30/00—Piezoelectric or electrostrictive devices
- H10N30/40—Piezoelectric or electrostrictive devices with electrical input and electrical output, e.g. functioning as transformers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Electrostatic Spraying Apparatus (AREA)
Abstract
1478303 D.C.-D.C. converters CONTROSION ELECTROSTATIC Ltd 12 June 1974 [19 June 1973 17 Sept 1973] 29083/73 and 43448/73 Heading H2F In electrostatic coating apparatus, a high voltage generator comprises control means, such as a piezo electric transformer, coupled via a voltage-multiplying rectifier H to an electrode (not shown) of the electrostatic coating apparatus. The arrangement is preferably such that as the coating electrode is moved towards an earthed point, the output voltage and the output current become reduced to zero thus preventing sparking. The power supply is applicable for use with an electrostatic spray gun or electrostatic fluid bed apparatus. As described, the 50 Hz mains are connected at 100, 101 and feed a transformer 105. When switch 112 is closed, a relay 110 may be energized from a reed switch 111 on the spray gun so as to close contacts 114 and energize rectifier 115, the output of which is regulated by transistor 122 and Zener diode 123. The regulated output feeds the oscillator S comprising a transistor amplifier coupled via a transformer 142 to input electrodes C, D of a piezo electric transformer, output electrodes of which are coupled via the voltage-multiplying rectifier H to the coating electrode (not shown). The output voltage may be monitored at 158; a further electrode 148 feeding a neon indicator. The piezo electrode transformer is preferably of lead titanium zirconate or a barium titanate and may be mounted in the gun. Fig. 6 (not shown) shows the relationship between output voltage, output current and electrode/earth separation. Fig. 4 (not shown) relates to a plastics box containing a printed circuit power supply including the piezo electric transformer, mounted on the side of a further plastics box containing the voltage multiplying rectifier.
Priority Applications (5)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2908373A GB1478303A (en) | 1973-06-19 | 1973-06-19 | High voltage generating apparatus |
| DE2428700A DE2428700A1 (en) | 1973-06-19 | 1974-06-14 | DEVICE FOR GENERATING HIGH VOLTAGES |
| JP49069638A JPS5069155A (en) | 1973-06-19 | 1974-06-18 | |
| CH839974A CH585983A5 (en) | 1973-06-19 | 1974-06-19 | HV generator regulating loop for electrostatic spray guns - has piezoelectric transducer reducing current as voltage falls enabling earthed object spraying |
| FR7421347A FR2241912A1 (en) | 1973-06-19 | 1974-06-19 | HV generator regulating loop for electrostatic spray guns - has piezoelectric transducer reducing current as voltage falls enabling earthed object spraying |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| GB2908373A GB1478303A (en) | 1973-06-19 | 1973-06-19 | High voltage generating apparatus |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| GB1478303A true GB1478303A (en) | 1977-06-29 |
Family
ID=10285889
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| GB2908373A Expired GB1478303A (en) | 1973-06-19 | 1973-06-19 | High voltage generating apparatus |
Country Status (1)
| Country | Link |
|---|---|
| GB (1) | GB1478303A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4372071A (en) * | 1981-09-14 | 1983-02-08 | Vicino Robert K | Fabric faced billboard |
| WO1998010871A1 (en) * | 1996-09-13 | 1998-03-19 | Eurotec Surface Coating Systems Limited | Control systems for electrostatic powder spraying apparatus |
| EP2472545A1 (en) * | 2009-08-26 | 2012-07-04 | Panasonic Corporation | Discharge device and electrostatic atomization device comprising same |
| CN111711252A (en) * | 2020-07-24 | 2020-09-25 | 青岛巉山环保科技有限公司 | Control circuit of electrostatic sprayer |
-
1973
- 1973-06-19 GB GB2908373A patent/GB1478303A/en not_active Expired
Cited By (7)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US4372071A (en) * | 1981-09-14 | 1983-02-08 | Vicino Robert K | Fabric faced billboard |
| WO1998010871A1 (en) * | 1996-09-13 | 1998-03-19 | Eurotec Surface Coating Systems Limited | Control systems for electrostatic powder spraying apparatus |
| US6274202B1 (en) | 1996-09-13 | 2001-08-14 | Eurotec Surface Coating Systems, Ltd. | Control systems for electrostatic powder spraying apparatus |
| EP2472545A1 (en) * | 2009-08-26 | 2012-07-04 | Panasonic Corporation | Discharge device and electrostatic atomization device comprising same |
| EP2472545A4 (en) * | 2009-08-26 | 2013-01-02 | Panasonic Corp | Discharge device and electrostatic atomization device comprising same |
| CN111711252A (en) * | 2020-07-24 | 2020-09-25 | 青岛巉山环保科技有限公司 | Control circuit of electrostatic sprayer |
| CN111711252B (en) * | 2020-07-24 | 2024-05-03 | 青岛巉山环保科技有限公司 | Electrostatic atomizer control circuit |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PS | Patent sealed [section 19, patents act 1949] | ||
| PCNP | Patent ceased through non-payment of renewal fee |