CN105068588A - Two-wire system electric voltage regulator - Google Patents
Two-wire system electric voltage regulator Download PDFInfo
- Publication number
- CN105068588A CN105068588A CN201510522609.XA CN201510522609A CN105068588A CN 105068588 A CN105068588 A CN 105068588A CN 201510522609 A CN201510522609 A CN 201510522609A CN 105068588 A CN105068588 A CN 105068588A
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- China
- Prior art keywords
- voltage regulator
- diode
- electric voltage
- direct current
- parallel
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Classifications
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- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05F—SYSTEMS FOR REGULATING ELECTRIC OR MAGNETIC VARIABLES
- G05F1/00—Automatic systems in which deviations of an electric quantity from one or more predetermined values are detected at the output of the system and fed back to a device within the system to restore the detected quantity to its predetermined value or values, i.e. retroactive systems
- G05F1/10—Regulating voltage or current
- G05F1/12—Regulating voltage or current wherein the variable actually regulated by the final control device is ac
- G05F1/14—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices
- G05F1/147—Regulating voltage or current wherein the variable actually regulated by the final control device is ac using tap transformers or tap changing inductors as final control devices with motor driven tap switch
Abstract
The invention discloses a two-wire system electric voltage regulator which is composed of a voltage regulator body, a voltage regulation piece, a direct current motor, an upper limiting switch, a lower limiting switch, a first diode and a second diode. The two-wire system electric voltage regulator is characterized in that the voltage regulation piece is arranged on the voltage regulator body and driven by the direct current motor, and the upper and lower limiting switches are arranged at the upper and lower rotation limit positions of the voltage regulation piece; the second wiring end of the upper limiting switch is used as the first external wiring end and is connected with the negative electrode of the second diode in parallel; the first wiring end of the upper limiting switch is connected with the positive electrode of the second diode in parallel and connected into the first power end of the direct current motor; the first wiring end of the lower limiting switch is used as the second external wiring end and connected with the negative electrode of the first diode in parallel; the second wiring end of the lower limiting switch is connected with the positive electrode of the first diode in parallel and connected into the second power end of the direct current motor; the upper and lower limiting switches are in normally closed type. The two-wire system electric voltage regulator has the advantages that the structure is simple, the number of wires is small, the reliability is high, and the cost is low, the wiring workloads can be relieved, the number of adopted PLC I/O interfaces is decreased, the system stability is improved, and the cost is lowered.
Description
Technical field
The present invention relates to a kind of pressure regulator, particularly relate to a kind of pressure regulator adopting automatically controlled mode.
Background technology
In the test of household electrical appliances properties of product, often need to adopt pressure regulator, to test the properties of product situation of household appliances under different harsh voltage condition.And the electric voltage regulator of sinusoidal adjustable voltage can be provided, in household electrical appliances product test process, be widely used.Existing variable-frequency power sources, though can provide sinusoidal adjustable voltage, has electric voltage regulator function, because of selling at exorbitant prices, fails widespread use.
Existing electric voltage regulator, the main mode of its work utilizes direct current generator to carry out revolving fragment, regulates secondary output voltage size, rotate exceed bound dead point, ad hoc upper limit position switch and lower position switch to prevent direct current generator.This control mode, usually need at least 5 external wires, linking corresponding control system could realize, that is, wherein DC motor power needs 2 wires, and upper limit position switch and lower position switch at least need 3 (can a piece ground wire) totally.When test macro needs multiple stage pressure regulator, as N platform electric voltage regulator, this electric voltage regulator operation circuit at least needs 5N root wire, and installation work amount is very large, and system stability is poor, and occupies the I/O interface of more PLC, adds cost.
Summary of the invention
Embodiments of the invention object is to provide a kind of two-wire system electric voltage regulator, there is the features such as structure is simple, wiring quantity is few, the high and low cost of reliability, to alleviate installation work amount, reduce the I/O interface use amount of PLC, while raising household appliances Performance Test System reliability, reduce correspondingly cost.
For achieving the above object, embodiments of the invention adopt following technical scheme:
A kind of two-wire system electric voltage regulator, be made up of pressure regulator body, pressure regulation sheet, direct current generator, upper limit position switch, lower position switch, the first diode, the second diode, it is characterized in that: described pressure regulation sheet is located on pressure regulator body, by DC motor Driver, upper and lower limit bit switch is located at the Upper-lower Limit position that pressure regulation sheet rotates respectively; Upper limit position switch second terminals are as the first external terminal, and in parallel with the second diode cathode; Upper limit position switch first terminals are in parallel with the second diode cathode, are linked into direct current generator first power end; Lower position switch first terminals are as the second external terminal, and in parallel with the first diode cathode; Lower position switch second terminals are in parallel with the first diode cathode, are linked into direct current generator second source end; Upper and lower limit bit switch is normally closed type.
As optimization, a kind of two-wire system electric voltage regulator test macro, is characterized in that: be made up of several two-wire system electric voltage regulator, and the second external terminal of each two-wire system electric voltage regulator, is connected in parallel.
Principle of work of the present invention: for convenience of explanation, suppose, when first power end of direct current generator, second source end access positive and negative electricity respectively, direct current generator rotates forward, rotation amplitude is larger, output voltage is larger, and original state is: the first external terminal, the second external terminal pass into positive and negative electricity respectively.In normal range of regulation, direct current generator, by being normally closed upper limit position switch, lower position switch powers and rotates.When pressure regulator reaches in limited time, now, upper limit position switch action; namely become disconnection by closed, and now the second diode is in cut-off state, direct current; the first power end of direct current generator cannot be imported from the first external terminal, and direct current generator is stopped operating, realize upscale protection.When upscale protection; direct current generator can not rotate forward increase voltage; and can only reverse; turn voltage down; now power the first external terminal, the second external terminal passes into negative, positive electricity respectively, and electric current is flowed out by the second source end of lower position switch, direct current generator, the first power end, the second diode respectively successively, and direct current generator reverses; when after disengaging upper change point, just return to normal range of operation.
Obviously, when test macro needs multiple stage electric voltage regulator, during as N platform electric voltage regulator, electric voltage regulator provided by the invention, its external operation circuit then only needs 2N root wire, and the minimizing of external wire quantity is not only conducive to the stability of raising system, and can also the control mouth quantity of less peripheral control unit, as the I/O interface of PLC.Especially, when electric voltage regulator quantity more and different time pressure regulation when, can also by the second external terminal of two-wire system electric voltage regulator provided by the invention, be connected in parallel, now, wire can be saved further, as N platform electric voltage regulator only needs N+1 root wire.
A kind of two-wire system electric voltage regulator provided by the invention, have employed two-wire system control mode, achieves single motor pressure regulator, by needing external 5 control lines before, becomes the control mode only needing external 2 control lines.Compared with prior art, the present invention, has the features such as structure is simple, wiring quantity is few, the high and low cost of reliability, effectively can alleviate installation work amount, reduce the I/O interface use amount of PLC, improve system stability, reduce correspondingly cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the embodiment of the present invention or technical scheme of the prior art, be briefly described to the accompanying drawing used required in embodiment or description of the prior art below, apparently, accompanying drawing in the following describes is only some embodiments of the present invention, for those of ordinary skill in the art, under the prerequisite not paying creative work, other accompanying drawing can also be obtained according to these accompanying drawings.
Fig. 1 is the two-wire system electric voltage regulator schematic diagram in the embodiment of the present invention;
Fig. 2 is the control circuit schematic diagram in the embodiment of the present invention;
Fig. 3 is the control circuit schematic diagram of the two-wire system electric voltage regulator test macro in the embodiment of the present invention;
In figure: 10-pressure regulation is put down; M-direct current generator; T-pressure regulator body; SQ2-upper limit position switch; SQ1-lower position switch; VD1-the first diode; VD2-the second diode.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, be clearly and completely described the technical scheme in the embodiment of the present invention, obviously, described embodiment is only the present invention's part embodiment, instead of whole embodiments.Based on the embodiment in the present invention, those of ordinary skill in the art, not making the every other embodiment obtained under creative work prerequisite, belong to the scope of protection of the invention.
A kind of two-wire system electric voltage regulator, be made up of pressure regulator body T, pressure regulation sheet 10, direct current generator M, upper limit position switch SQ2, lower position switch SQ1, the first diode VD1, the second diode VD2, it is characterized in that: described pressure regulation sheet 10 is located on pressure regulator body T, driven by direct current generator M, upper limit position switch SQ2, lower position switch SQ1 are located at the Upper-lower Limit position that pressure regulation sheet 10 rotates respectively;
After second terminals 22 of upper limit position switch SQ2 are in parallel with the negative pole of the second diode VD2, as the first external terminal; After first terminals 21 of upper limit position switch SQ2 are in parallel with the positive pole of the second diode VD2, be linked into first power end of direct current generator M;
After first terminals 11 of lower position switch SQ1 are in parallel with the negative pole of the first diode VD1, as the second external terminal; After second terminals 12 of lower position switch SQ1 are in parallel with the positive pole of the first diode VD1, be linked into the second source end of direct current generator M; Upper limit position switch SQ2, lower position switch SQ1 are normally closed type limit switch.
As shown in Figure 3, when electric voltage regulator quantity more and different time pressure regulation when, by the second external terminal of multiple two-wire system electric voltage regulator, can also be connected in parallel, now, wire can be saved further, as N platform electric voltage regulator only needs N+1 root wire.
The above; be only the specific embodiment of the present invention, but protection scope of the present invention is not limited thereto, is anyly familiar with those skilled in the art in the technical scope that the present invention discloses; change can be expected easily or replace, all should be encompassed within protection scope of the present invention.Therefore, protection scope of the present invention should be as the criterion with the protection domain of described claim.
Claims (2)
1. a two-wire system electric voltage regulator, be made up of pressure regulator body, pressure regulation sheet, direct current generator, upper limit position switch, lower position switch, the first diode, the second diode, it is characterized in that: described pressure regulation sheet is located on pressure regulator body, by DC motor Driver, upper and lower limit bit switch is located at the Upper-lower Limit position that pressure regulation sheet rotates respectively; Upper limit position switch second terminals are as the first external terminal, and in parallel with the second diode cathode; Upper limit position switch first terminals are in parallel with the second diode cathode, are linked into direct current generator first power end; Lower position switch first terminals are as the second external terminal, and in parallel with the first diode cathode; Lower position switch second terminals are in parallel with the first diode cathode, are linked into direct current generator second source end; Upper and lower limit bit switch is normally closed type.
2. a two-wire system electric voltage regulator test macro, is characterized in that: be made up of several two-wire system electric voltage regulator, and the second external terminal of each two-wire system electric voltage regulator, is connected in parallel.
Priority Applications (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201610403336.1A CN105892539A (en) | 2015-08-22 | 2015-08-22 | Two-wire system electric voltage regulator |
| CN201510522609.XA CN105068588B (en) | 2015-08-22 | 2015-08-22 | A kind of two-wire system electric voltage regulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510522609.XA CN105068588B (en) | 2015-08-22 | 2015-08-22 | A kind of two-wire system electric voltage regulator |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610403336.1A Division CN105892539A (en) | 2015-08-22 | 2015-08-22 | Two-wire system electric voltage regulator |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN105068588A true CN105068588A (en) | 2015-11-18 |
| CN105068588B CN105068588B (en) | 2016-05-25 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201510522609.XA Active CN105068588B (en) | 2015-08-22 | 2015-08-22 | A kind of two-wire system electric voltage regulator |
| CN201610403336.1A Pending CN105892539A (en) | 2015-08-22 | 2015-08-22 | Two-wire system electric voltage regulator |
Family Applications After (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201610403336.1A Pending CN105892539A (en) | 2015-08-22 | 2015-08-22 | Two-wire system electric voltage regulator |
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| CN (2) | CN105068588B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88218763U (en) * | 1988-06-15 | 1988-12-28 | 杨庆丰 | Large power high precision ac voltage regulator with hydraulic operating device |
| US5550459A (en) * | 1994-08-08 | 1996-08-27 | Siemens Energy & Automation, Inc. | Tap position determination based on regular impedance characteristics |
| CN1479181A (en) * | 2002-08-30 | 2004-03-03 | 沈阳新松机器人自动化股份有限公司 | Analogue alternating current constant current source |
| CN2606914Y (en) * | 2003-01-22 | 2004-03-17 | 周熙文 | Pole type high power voltage stabilized power source |
| JP2004173384A (en) * | 2002-11-19 | 2004-06-17 | Mitsubishi Electric Corp | Automatic voltage regulator |
| CN204990052U (en) * | 2015-08-22 | 2016-01-20 | 滁州职业技术学院 | Electronic voltage regulator of two -wire system |
Family Cites Families (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US7417411B2 (en) * | 2005-09-14 | 2008-08-26 | Advanced Power Technologies, Llc | Apparatus and method for monitoring tap positions of load tap changer |
| CN2881741Y (en) * | 2006-02-14 | 2007-03-21 | 天津市百利电气有限公司 | Digital automatic AC constant-current source |
| JP4582168B2 (en) * | 2008-03-21 | 2010-11-17 | 株式会社デンソー | Rotating machine control device and rotating machine control system |
| CN102611252A (en) * | 2012-03-16 | 2012-07-25 | 广州市红鹏直升机遥感科技有限公司 | One-way position limiting switch |
| CN203313101U (en) * | 2013-06-09 | 2013-11-27 | 三科电器集团有限公司 | Voltage regulator motor limiting circuit |
-
2015
- 2015-08-22 CN CN201510522609.XA patent/CN105068588B/en active Active
- 2015-08-22 CN CN201610403336.1A patent/CN105892539A/en active Pending
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN88218763U (en) * | 1988-06-15 | 1988-12-28 | 杨庆丰 | Large power high precision ac voltage regulator with hydraulic operating device |
| US5550459A (en) * | 1994-08-08 | 1996-08-27 | Siemens Energy & Automation, Inc. | Tap position determination based on regular impedance characteristics |
| CN1479181A (en) * | 2002-08-30 | 2004-03-03 | 沈阳新松机器人自动化股份有限公司 | Analogue alternating current constant current source |
| JP2004173384A (en) * | 2002-11-19 | 2004-06-17 | Mitsubishi Electric Corp | Automatic voltage regulator |
| CN2606914Y (en) * | 2003-01-22 | 2004-03-17 | 周熙文 | Pole type high power voltage stabilized power source |
| CN204990052U (en) * | 2015-08-22 | 2016-01-20 | 滁州职业技术学院 | Electronic voltage regulator of two -wire system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN105068588B (en) | 2016-05-25 |
| CN105892539A (en) | 2016-08-24 |
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