CN201985779U - Automotive electronic electrostatic generator - Google Patents
Automotive electronic electrostatic generator Download PDFInfo
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- CN201985779U CN201985779U CN2011200075599U CN201120007559U CN201985779U CN 201985779 U CN201985779 U CN 201985779U CN 2011200075599 U CN2011200075599 U CN 2011200075599U CN 201120007559 U CN201120007559 U CN 201120007559U CN 201985779 U CN201985779 U CN 201985779U
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- circuit
- electrostatic generator
- automotive electronics
- power supply
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Abstract
The utility model discloses an automotive electronic electrostatic generator, which comprises a control panel, a key panel, an LCD, a switch power supply, a high-voltage power supply and an electrostatic gun, wherein the output part of the high-voltage power supply is outputted to the electrostatic gun via a polarity switching circuit. The automotive electronic electrostatic generator provided by the utility model has improved precision and linearity since the output part of the high-voltage power supply is outputted to the electrostatic gun via the polarity switching circuit.
Description
Technical field
The utility model relates to a kind of electrostatic generator, relates in particular to a kind of automotive electronics electrostatic generator.
Background technology
The automotive electronics electro-static discharging generator is at automotive electronics esd immunity test features and requirement and custom-designed high reliability test macro.Produce electrostatic discharge pulses according to EN/IEC 61000-4-2 test grade, and be better than standard-required, meet the ISO10605:2008 test standard fully.
In present existing electro-static discharging generator product, have the following disadvantages:
Alternative to meet the electro-static discharging generator that up-to-date testing standard (ISO10605:2008) requires less, mainly is that the precision and the linearity do not reach requirement.Therefore be necessary existing automotive electronics electrostatic generator is improved, improve the precision and the linearity.
In addition, the electrostatic series product of the generator that has such as most of domestic corporation, be original manual voltage regulation mode, for the magnitude of voltage that obtains user expectation need be through transferring the transformer knob, this occupation mode is not only wasted user's service time, and owing to adopts artificial pressure regulation also to make the magnitude of voltage inaccuracy that obtains.
Summary of the invention
Technical problem to be solved in the utility model provides a kind of automotive electronics electrostatic generator, improves the precision and the linearity.
The utility model is to solve the problems of the technologies described above the technical scheme that adopts to provide a kind of automotive electronics electrostatic generator, comprise control board, keypad, liquid crystal display, Switching Power Supply, high voltage source and static gun, wherein, the output of described high voltage source outputs to static gun by polarity switching circuit.
Above-mentioned automotive electronics electrostatic generator, wherein, described polarity switching circuit mainly is made up of the vacuum high-pressure relay, and described vacuum high-pressure relay external seal has silicon rubber.
Above-mentioned automotive electronics electrostatic generator, wherein, described static gun comprises four groups of capacitance-resistance external members: 150pF/330 Ω, 330pF/330 Ω, 150pF/2000 Ω, 330pF/2000 Ω.
The utility model contrast prior art has following beneficial effect: the automotive electronics electrostatic generator that the utility model provides outputs to static gun by the output with high voltage source by polarity switching circuit, thereby improves the precision and the linearity.
Description of drawings
Fig. 1 is the utility model automotive electronics electrostatic generator structural representation;
Fig. 2 is the circuit block diagram of control board in the utility model electrostatic generator;
Fig. 3 is the high-voltage power voltage initialization circuit principle of control board in the utility model electrostatic generator;
Fig. 4 is the atmospherical discharges induction of signal circuit theory of control board in the utility model electrostatic generator.
Among the figure:
3 liquid crystal displays of 1 control board, 2 keypads
4 Switching Power Supplies, 5 high voltage sourcies, 6 polarity switching circuits
7 static gun
Embodiment
The utility model will be further described below in conjunction with drawings and Examples.
Fig. 1 is the utility model automotive electronics electrostatic generator structural representation.
See also Fig. 1, the automotive electronics electrostatic generator that the utility model provides comprises control board 1, keypad 2, liquid crystal display 3, Switching Power Supply 4, high voltage source 5 and static gun 7, wherein, the output of described high voltage source 5 outputs to static gun 7 by polarity switching circuit 6.
Then each main circuit is partly done further to launch to describe below:
(1) control board
The control board of the utility model automotive electronics electrostatic generator is core with the single-chip microcomputer, mainly by high-voltage power voltage initialization circuit, user profile memory circuit, outside relay drive circuit, liquid crystal display drive circuit, keypad signal circuit and atmospherical discharges induction of signal circuit are formed.
The principle of high-voltage power voltage initialization circuit is 14 bit string mouth data to be set to the D/A chip by single-chip microcomputer, produces certain analog voltage amount (0V～5V), be used to control the output voltage amplitude of high voltage source by the D/A chip.As shown in Figure 3, single-chip microcomputer passes through IC1(MAX531) produce 0 ~ 4.096V direct-flow steady voltage, produce 0 ~ 5V direct voltage by IC2 and IC3 fine setting again, supply with high voltage source, high voltage source is amplified 6K and is doubly exported.
The principle of user profile memory circuit is by single-chip microcomputer the waveform generation state information that the user of relevant work pattern determines to be stored in the data storing chip, so that when working mode change, transfer corresponding waveform generation state smoothly, use the UT62256 chip.
The principle of outside relay drive circuit is the single-chip microcomputer transmission signals, by light-coupled isolation, amplify the adhesive of the corresponding relay of control or open through triode, and in software the adhesive sequential of control relay, a large amount of interference of avoiding adhesive simultaneously to bring.
The principle of the signal circuit of keypad is that single-chip microcomputer carries out the transmission of panel leds signal and button sampled signal by buffer, can reduce signal circuit, strengthens antijamming capability.
The principle of liquid crystal display drive circuit is that data are directly exported by single-chip microcomputer by 38 decoders and gate circuit control gating end.
The principle of atmospherical discharges induction of signal circuit as shown in Figure 4, ground wire cover mutual inductor (elementary) at storage capacitor, mutual inductor during discharge (secondary) can produce certain potential pulse, vibration produces sinusoidal wave through C1 earlier, pass through L1 again, C2 filtering high frequency clutter, reverse by amplifier amplification, monostable flipflop time-delay and reverser then, can produce the discernible signal of single-chip microcomputer, cut off static gun output when single-chip microcomputer INT0 mouth detects discharge signal.
Power input at control board adopts π type filter circuit, purifies DC power supply such as 5V power supply.The Vcc of each chip on control board end, the patch capacitor that all pass through a 100nF is ground connection nearby, the signal circuit minimum of assurance chip.
(2) keypad
Keypad is made up of the transmission circuit of panel leds signal and button, encoder sampled signal.The key encoder signal circuit is made up of the RC filter circuit, strengthens interference free performance.
(3) show liquid crystal
Adopt the 192*64 dot matrix, the liquid crystal display backlight of blue mould white light monochromatic LED.
(4) Switching Power Supply
Switching Power Supply is powered to complete machine, and Switching Power Supply has improved voltage transitions efficient, and at mains fluctuation ± 10% o'clock, output voltage can remain unchanged, and inside provides 110V/220V toggle switch, can work in 110V voltage environment if needed.
(5) high voltage source
Adopt outsourcing 30KV, 1.5mA high voltage source, positive and negative each one.Its input voltage 24V, maximum output voltage 30KV, 0 ~ 5V control, the constant-current type power supply of power 50W.
The high voltage source output voltage is better with the linearity of control voltage, and temperature is floated very little.
(6) polarity is switched the road
Adopt the vacuum high-pressure relay, be used to switch positive or negative high voltage.Integral body reduces electric leakage with silicone rubber seal.
(7) static gun
Provide four groups of capacitance-resistance external members (150pF/330 Ω, 330pF/330 Ω, 150pF/2000 Ω, 330pF/2000 Ω) to be convenient for changing; Three sparking electrodes are respectively: be used for the conical electrode of contact discharge, be used for the round end electrode and the mushroom-shaped electrode that is used to be higher than the 15kV bubble-discharge of bubble-discharge.
In sum, the utility model automotive electronics electrostatic generator has following advantage: 1) adopt the encoder knob, the convenient adjusting.The program control high voltage source of Single-chip Controlling, the requirement of ISO10605:2008 standard test voltage is satisfied in positive and negative 0.1～30KV output fully.2) adopt the liquid crystal display interface, take into full account user's convenient instructions for use, comprise the Adjustable Output Voltage scope of static, the contact discharge frequency, discharge time and polarity realize more succinct operation and high-intelligentization design.3) the polarity automatic switching function is satisfied in the quick switching of realization main circuit voltage polarity.4) provide 150pF/330 Ω, 330pF/330 Ω, 150pF/2000 Ω, 330pF/2000 Ω, quadruplet capacitance-resistance external member is conveniently tested according to the ISO10605:2008 standard-required.5) the grade control program of embedded curing, the voltage gradient function improves the efficient that the user uses.6) be equipped with the host computer remote control software, have user profile, testing equipment information management function, can generate test report immediately.
Though the utility model discloses as above with preferred embodiment; right its is not in order to limit the utility model; any those skilled in the art; in not breaking away from spirit and scope of the present utility model; when doing a little modification and perfect, therefore protection range of the present utility model is worked as with being as the criterion that claims were defined.
Claims (4)
1. automotive electronics electrostatic generator, comprise control board (1), keypad (2), liquid crystal display (3), Switching Power Supply (4), high voltage source (5) and static gun (7), it is characterized in that the output of described high voltage source (5) outputs to static gun (7) by polarity switching circuit (6).
2. automotive electronics electrostatic generator as claimed in claim 1, it is characterized in that, described control board (1) comprises high-voltage power voltage initialization circuit, user profile memory circuit, outside relay drive circuit, liquid crystal display drive circuit, keypad signal circuit and atmospherical discharges induction of signal circuit.
3. automotive electronics electrostatic generator as claimed in claim 1 is characterized in that, described polarity switching circuit (6) mainly is made up of the vacuum high-pressure relay, and described vacuum high-pressure relay external seal has silicon rubber.
4. automotive electronics electrostatic generator as claimed in claim 1 is characterized in that, described static gun (7) comprises four groups of capacitance-resistance external members: 150pF/330 Ω, 330pF/330 Ω, 150pF/2000 Ω, 330pF/2000 Ω.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200075599U CN201985779U (en) | 2011-01-12 | 2011-01-12 | Automotive electronic electrostatic generator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011200075599U CN201985779U (en) | 2011-01-12 | 2011-01-12 | Automotive electronic electrostatic generator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201985779U true CN201985779U (en) | 2011-09-21 |
Family
ID=44613229
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011200075599U Expired - Lifetime CN201985779U (en) | 2011-01-12 | 2011-01-12 | Automotive electronic electrostatic generator |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201985779U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813977A (en) * | 2017-11-20 | 2019-05-28 | 上海普锐马电子有限公司 | A kind of static gun with touch screen |
| CN113453546A (en) * | 2019-01-28 | 2021-09-28 | 以色列国家农业部、农村发展农业研究组织·沃尔卡尼中心 | Device for electrostatic weeding |
-
2011
- 2011-01-12 CN CN2011200075599U patent/CN201985779U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109813977A (en) * | 2017-11-20 | 2019-05-28 | 上海普锐马电子有限公司 | A kind of static gun with touch screen |
| CN113453546A (en) * | 2019-01-28 | 2021-09-28 | 以色列国家农业部、农村发展农业研究组织·沃尔卡尼中心 | Device for electrostatic weeding |
| CN113453546B (en) * | 2019-01-28 | 2023-10-31 | 以色列国家农业部、农村发展农业研究组织·沃尔卡尼中心 | Device for performing electrostatic weeding |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20110921 |