CN2304177Y - Cross-flux voltage regulator - Google Patents

Abstract

The utility model relates to an automatic coupling voltage regulator, which can change the positive negative and the sizes of the magnetic flux in a secondary coil to regulate voltage. The utility model is characterized in that four independent primary coils and a common secondary coil are wound on a special-shaped iron core which is assembled by four groups of mouth-shaped iron cores; one end of the secondary coil and a common line are used as the input end of the utility model; the other end and the common line are used as the output end of the utility model. Through the unification of transfer switches, the utility model can be changed into independent control; the whole or the individual of each primary coil incorporate with the input end of the output end of utility model; the utility model has eight stages on-load voltage regulation without power cut. The current through each transfer switch is smaller than load current; the utility model is suitable for various full automatic voltage regulators.

Description

The variable flux voltage regulation device

The utility model is a kind of AC voltage regulator.

AC voltage regulator commonly used at present has two kinds.A kind of is to have level to become the tap automatic coupling voltage regulator, and its advantage is: volume is little, and is in light weight, and the coil capacity is lower than transformer capacity; Shortcoming is: export instant cut-off in the conversion tap pressure regulation process, be easy to generate the harmful pulse of high pressure, influence power supply quality and power consumption equipment operate as normal.Another kind is stepless slidingtype automatic coupling voltage regulator, and its advantage is: continuous voltage regulating output, do not cut off the power supply in the pressure regulation process; Shortcoming is: volume is big and heavy, normally goes up work because of loose contact influences power consumption equipment easily in the sliding process of contact.

The utility model purpose provides the voltage regulator that possesses above-mentioned two kinds of voltage regulator major advantages.That is: volume is little, and weight is lighter, multi-stage pressure regulating, and on-load voltage regulation is not cut off the power supply, the novel voltage regulator of suitable for making automatic voltage regulator.

The utility model embodiment is: be made up of four groups of port type iron cores, four independent primary coil and a public secondary coil, it is characterized in that: twine a primary coil on every group of port type iron core one long limit, the long limit of another of four groups of iron cores is staggered and is stitched together, become a field word square column iron core, and four primary coil are opened to the four sides, on the word square column iron core of field, twine public secondary coil.Public secondary coil one end and common wire are the voltage regulator input, the other end and common wire are voltage regulator output, one end of four groups of primary coil ends of the same name also connects, each personal single-pole double-throw switch (SPDT) of the other end both can be with this winding self short circuit, can be connected in parallel with other primary coil again, use a double-point double-throw switch again, can be reversingly all or individually in the mode of boosting and to the input of voltage regulator or in the mode of step-down and to output voltage regulator four groups of primary coil.

The utility model special-effect is: adopt the unified commutation of each primary coil mode of control separately, magnetic flux change is positive and negative and big or small in the change secondary coil, reaches the purpose of pressure regulation, has made full use of the coil capacity; Secondary coil is serially connected with between power supply and the electrical appliance all the time, does not cut off the power supply in the pressure regulation process, and makes the electric current that flows through each change over switch be far smaller than load current, has improved the voltage regulator operation reliability; Leakage inductance has the isolation buffer effect to harmful pulse that power supply network and power consumption equipment produced in the secondary coil.

Operation principle of the present utility model is: when input voltage is lower than required voltage, and reversing switch K ₀With boosting mode each primary coil is connected to the voltage regulator input, makes by magnetic flux positive change in the secondary coil, induced electromotive force and supply voltage superposition in the same way in the secondary coil, output voltage raises, and rise can be by incorporating circuit primary coil number regulation and control (K into ₁-K ₄Control); When supply voltage is higher than required voltage, reversing switch K ₀Mode with step-down is connected to output voltage regulator with each primary coil, makes by magnetic flux negative sense in the secondary coil to change, and the reverse superposition of induced electromotive force and supply voltage in the secondary coil, output voltage reduces, and the reduction amount is still by incorporating the regulation and control of circuit primary coil number into; When supply voltage equals required voltage, K ₁-K ₄All with primary coil short circuit separately, magnetic flux is zero in the secondary coil, and induced electromotive force is zero, and then output voltage is exactly a supply voltage.

Figure (1) is the utility model structural representation

Figure (2) is the utility model circuit diagram

Figure (3) is that the utility model is implemented illustration

Among the figure the 1,2,3, the 4th, primary coil, the 5th, public secondary coil, K ₀Be double-point double-throw switch, K ₁-K ₄Be single-pole double-throw switch (SPDT), CRK is sampling, comparison, logic control electronic switch combination circuit, U _iWith U ₀Input and the output of representing voltage regulator respectively.

The utility model is described in further detail below in conjunction with accompanying drawing (3): the multiple full-automatic voltage stabilizer of the utility model suitable for making.For the brief description problem, present embodiment is single function full-automatic voltage stabilizer, change over switch in the utility model replaces by the electronic switch CRK with the control of intelligent decision function, according to supply voltage value, according to the described pressure regulation mechanism of the utility model operation principle, corresponding electronic switch action, thereby make the voltage regulator input voltage specific in a big way in variation, and the output voltage all-the-time stable a certain among a small circle in, reach the purpose of automatic voltage regulation.

Claims (2)

1, a kind of variable flux voltage regulation device, form by four groups of port type iron cores, four independent primary coil and a public secondary coil, it is characterized in that: twine a primary coil on every group of port type iron core one long limit, the long limit of another of four groups of iron cores is staggered and is stitched together, become a field word square column iron core, and four primary coil are opened to the four sides, going out to twine public secondary coil on the word square column iron core.

2, a kind of variable flux voltage regulation device as claimed in claim 1, public secondary coil one end and common wire are the voltage regulator input, the other end and common wire are voltage regulator output, one end of four groups of primary coil ends of the same name also connects, each personal single-pole double-throw switch (SPDT) of the other end both can be with this winding self short circuit, can be connected in parallel with other primary coil again, use a double-point double-throw switch again, can be reversingly all or individually in the mode of boosting and to the input of voltage regulator or in the mode of step-down and to output voltage regulator four groups of primary coil.

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