CN2084683U - Contactless voltage-controlled switch - Google Patents
Contactless voltage-controlled switch Download PDFInfo
- Publication number
- CN2084683U CN2084683U CN 89220106 CN89220106U CN2084683U CN 2084683 U CN2084683 U CN 2084683U CN 89220106 CN89220106 CN 89220106 CN 89220106 U CN89220106 U CN 89220106U CN 2084683 U CN2084683 U CN 2084683U
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- Prior art keywords
- voltage
- contactless
- controlled
- generator
- potentiometer
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Abstract
The utility model provides a contactless voltage-controlled switch, which can automatically stabilize the output voltage and frequency of an asynchronous generator. The contactless voltage-controlled switch is characterized in that a voltage-controlled triggering system composed of a resistor, a capacitor, a triggering element and a controlled silicon four elements is adopted; balanced loads are matched. Utilizing the voltage signal appearing when the loads of the generator change realizes the simple automatic voltage stabilization and frequency stabilization of the asynchronous generator under the arbitrary load conditions. The contactless voltage-controlled switch is assembled in a 60*60*80 (length * width * height) cylindrical or cubic shell body, and has integral inserting assembly and connecting assembly two structural forms.
Description
The utility model belongs to non-contact switch circuit and asynchronous generating technical field.Promptly directly utilize controllable silicon pressuring controling switch circuit principle, simplify the relevant technologies of asynchronous generator automatic stabilisation output voltage and frequency to greatest extent.
The microminiature asynchronous generator is simple in structure, cheap, the use maintenance is all extremely convenient.But its self-stabilization problem of its output voltage is that this for many years generator can not enlarge practical key point in the past.
In recent years, the multiple asynchronous generator that has from voltage stabilizing function has appearred in the needs along with the development of electronic technology and the electrification of the countryside are built.
Entrusted the metallurgical Institute of Social Science Information in Patent Office of the People's Republic of China and Beijing to carry out the international monopoly retrieval through 1983 and 1988 and consult both at home and abroad relevant asynchronous generator from voltage stabilizing aspect data finding, mainly contain the prestowage balance from voltage stabilizing, capacity transfer from voltage stabilizing and adjustable magnetic from three kinds of voltage stabilizing schemes of voltage stabilizing.Owing to the unit capacity height of prestowage balance, have better economic results, thereby obtained using more widely in recent years from voltage stabilizing asynchronous generator system.No matter this type of is the current mode or the product of voltage-type in voltage stabilizing asynchronous generator system, and its circuit structure from voltage-stabilizing system is basic identical.Fig. 1 be exactly by several sections such as sample circuit QY, linear amplification XF, circuits for triggering CF, controllable silicon S, balanced load R and power source special transformer BY form above-mentioned from the voltage-stabilizing system theory diagram.Certainly also have and adopt the relay classification or by the steady load of servomotor follow-up adjustment, in the microminiature generating set, use few.
Above-mentioned microminiature asynchronous generator is from voltage-stabilizing system, because circuit structure is comparatively complicated, cost is higher, and farmers' and resident can't check and keep in repair when particularly breaking down, thereby has influenced applying of the cheap generator of this class.
The purpose of this utility model is: simplify asynchronous generator to greatest extent from voltage-stabilizing system, improve its functional reliability, reduce cost, make it easy to maintenance and adaptation farmers', civilian condition and the environment of changing the outfit.
Fig. 2 is the utility model electrical block diagram.
The technical measures of taking are:
1, on the output circuit of generator F, incorporate power into and only see accompanying drawing 2 for several watts potentiometer W() road of connecting with the following capacitor C of 0.1 microfarad.Constitute simple sampling and triggering system.
2, also incorporate the generator output circuit into A, the K main circuit of the bidirectional triode thyristor S of corresponding rated current and after balanced load is connected as shown in Figure 2, constitute controlled accent and carry the loop.
3, diac T such as Fig. 2 are connected between voltage sampling point and the controllable silicon trigger electrode, constitute simple servo-actuated and trigger control system.Thereby utilize the variation of generator output voltage,, constituted the servo-actuated synchronous triggering system that capacitance-resistance discharges and recharges, directly simply output voltage has been realized feeding back automatically contactless votage control switch (YK) circuit from voltage stabilizing by W, C element.
The so-called contactless votage control switch of the utility model (YK) promptly is made up of W, C, T and four elements of S in the accompanying drawing 2.When A, B two ends and after generator is in parallel, when the electricity consumption load P is powered, appear at the AB both end voltage when utilizing the electricity consumption load variations and change, by the load of pressuring controling switch circuit control R, with realize electricity generation system from voltage stabilizing.The voltage stabilizing value of adjusting can be regulated as required by potentiometer W.
Advantage of the present utility model is as follows:
1, wholely only use four elements from voltage-stabilizing system, circuit structure is simplified greatly, does not need special-purpose power transformer, line integral to amplify and triggers complicated element circuit device such as vibration.Thereby the volume of system and weight are obviously reduced.
2, with existing with generally comparing from voltage-stabilizing system, whole cost reduction is more than 70%
3, the utility model can be made into self-contained general plug in construction, and it is all very convenient to use with maintenance, is specially adapted to backward areas, rural area user and environmental condition.
4, the utility model is done votage control switch realization output voltage and the Automatic Frequency stabilizing arrangement except that can be used for asynchronous generator, also can be as desirable contactless voltage relay.Because it has the release characteristics (can guarantee reliable release the more than 90% at the connection voltage of adjusting) that is far superior to the common electrical magnetic relay.
Through aforementioned patent and data-searching, all find no report and the application similar at home and abroad with the utility model.
The utility model is good in priorities in 1988 and 1989 trial state on WS2000 minisize hydroelectric generator (single-phase 2 kilowatts 220 volts) group and 2 kilowatts of diesel generating sets of WC2000 type.Load on when electricity consumption under the situation of drastic change suddenly between fully loaded and the zero load, generator carries out automatic voltage regulation and frequency stabilization by this contactless votage control switch.The output voltage of electricity generation system all can guarantee+10% with the scope of-15% rated value in reliable and stable operation.Frequency guarantees at+3～-3 hertz.
Claims (2)
1, a kind of contactless votage control switch, it is characterized in that adopting have only resistance, the passive voltage-controlled triggering system that discharges and recharges of no power source special power supply that electric capacity, diac and four elements of bidirectional triode thyristor constitute, by with it and the asynchronous generator output voltage that connects change, the auto-control balanced load is simplified from steady pressuring controling switch circuit to realize generator output voltage and frequency most.
2, according to the said contactless votage control switch of claim 1, it is characterized in that will be wherein controllable silicon negative pole (K) be connected in series with balanced load (R), potentiometer (W) and two outputs that are connected to controlled generator after capacitor (C) is connected in series simultaneously, diac is connected between the tie point and the SCR control utmost point of potentiometer and capacitor, potentiometer (W) end joins with controllable silicon positive pole (A), constitute contactless votage control switch in single, three-phase and asynchronous and the synchronous electric power generating apparatus from voltage stabilizing and from frequency stabilization system.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89220106 CN2084683U (en) | 1989-11-23 | 1989-11-23 | Contactless voltage-controlled switch |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 89220106 CN2084683U (en) | 1989-11-23 | 1989-11-23 | Contactless voltage-controlled switch |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2084683U true CN2084683U (en) | 1991-09-11 |
Family
ID=4874843
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 89220106 Expired - Lifetime CN2084683U (en) | 1989-11-23 | 1989-11-23 | Contactless voltage-controlled switch |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2084683U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102167063A (en) * | 2011-05-06 | 2011-08-31 | 孙小刚 | Pressure control switch for train |
| CN102136836B (en) * | 2010-01-22 | 2013-02-13 | 清华大学 | Voltage controlled switch, application method thereof and alarming system using voltage controlled switch |
-
1989
- 1989-11-23 CN CN 89220106 patent/CN2084683U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102136836B (en) * | 2010-01-22 | 2013-02-13 | 清华大学 | Voltage controlled switch, application method thereof and alarming system using voltage controlled switch |
| CN102167063A (en) * | 2011-05-06 | 2011-08-31 | 孙小刚 | Pressure control switch for train |
| CN102167063B (en) * | 2011-05-06 | 2012-07-25 | 孙小刚 | Pressure control switch for train |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C06 | Publication | ||
| PB01 | Publication | ||
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CX01 | Expiry of patent term |