CN111917174B

CN111917174B - UPS power supply and voltage regulating device thereof

Info

Publication number: CN111917174B
Application number: CN202010880731.5A
Authority: CN
Inventors: 杨开华; 胡双平; 王健
Original assignee: Dongguan Shuoqing Energy Technology Co ltd
Current assignee: Dongguan Shuoqing Energy Technology Co ltd
Priority date: 2020-08-27
Filing date: 2020-08-27
Publication date: 2023-05-02
Anticipated expiration: 2040-08-27
Also published as: CN111917174A

Abstract

The invention provides a voltage regulating device of a UPS power supply, comprising: the voltage input end is used for receiving input voltage, the input voltage comprises a first input voltage and a second input voltage, and the first input voltage is different from the second input voltage; the detection unit is electrically connected with the voltage input end; the control unit is electrically connected with the detection unit; the regulating unit comprises a plurality of electronic switches and a transformer, the transformer comprises a plurality of transformation units which are selectively and electrically connected with the plurality of electronic switches, the plurality of electronic switches are respectively and electrically connected with the control unit and the voltage input end, each electronic switch enters a normally closed state or a normally open state according to the regulating level, the transformation units which are gated by the plurality of electronic switches in the normally closed state and the normally open state are different, and the input voltage is regulated into a preset output voltage under the action of the transformation units which are gated by the plurality of electronic switches; and a voltage output terminal for outputting a preset output voltage.

Description

UPS power supply and voltage regulating device thereof

Technical Field

The invention relates to the field of UPS power supplies, in particular to a UPS power supply and a voltage regulating device thereof.

Background

Uninterruptible power supplies, also known as UPS power supplies, are system devices in which a storage battery is connected to a host, and direct current is converted into commercial power by a module circuit such as a host inverter, and are used in various places in social life to improve the usability of a power supply system. For example, a UPS power source may ensure that a computer system continues to operate for a period of time after a power outage to enable a user to save a disk in an emergency without the user affecting operation or losing data due to the power outage.

Along with the development of informatization technology, the application of the UPS is also more and more widespread, in the prior art, the UPS which receives the mains supply can only carry out voltage regulation treatment on a set of power grid system with the voltage of 220V, so the universality of the existing UPS is lower. If two power grid systems are encountered (such as 220V/110V two power grid systems in brazil), one UPS in the prior art cannot handle the voltage of different utility power in the two power grid systems.

Disclosure of Invention

The invention provides a UPS power supply with compatibility and a voltage regulating device thereof.

In a first aspect, an embodiment of the present invention provides a voltage regulator of a UPS power source, including:

the input device comprises a voltage input end, a voltage output end and a voltage output end, wherein the voltage input end is used for receiving input voltage, the input voltage comprises a first input voltage and a second input voltage, and the first input voltage is different from the second input voltage;

the detection unit is electrically connected with the voltage input end and is used for detecting whether the input voltage is the first input voltage or the second input voltage;

the control unit is electrically connected with the detection unit and is used for outputting a regulating level according to the input voltage and a preset output voltage, the preset output voltage comprises a first output voltage and a second output voltage, and the first output voltage is different from the second output voltage;

The regulating unit comprises a plurality of electronic switches and a transformer, the transformer comprises a plurality of transformation units which are selectively and electrically connected with the plurality of electronic switches, the plurality of electronic switches are respectively and electrically connected with the control unit and the voltage input end, each electronic switch enters a normally closed state or a normally open state according to the regulating level, the plurality of electronic switches are different in the normally closed state and the normally open state gating transformation units, and the input voltage is regulated to be the preset output voltage under the action of the plurality of electronic switch gating transformation units; and

and the voltage output end is used for outputting the preset output voltage.

In a second aspect, an embodiment of the present invention provides a UPS power supply, including the voltage adjustment apparatus and a housing, where the voltage adjustment apparatus is installed in the housing.

According to the voltage regulating device of the UPS, according to different input voltages and output voltages, a proper transformation unit is matched to regulate the input voltages and output preset output voltages. The problem that one UPS power supply can only be connected into one set of power grid without compatibility is solved, the UPS power supply can be connected into a plurality of sets of power grid systems simultaneously, and the UPS power supply has compatibility, so that the application range of the UPS power supply is higher.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below. It is apparent that the drawings in the following description are only some embodiments of the present invention, and that other drawings may be obtained from the structures shown in these drawings without inventive labor for those skilled in the art.

Fig. 1 is a schematic diagram of a voltage regulator of a UPS power supply according to a first embodiment of the present invention.

Fig. 2 is a schematic functional block diagram of an adjusting unit according to a first embodiment of the present invention.

Fig. 3 is a schematic circuit diagram of an adjusting unit according to a first embodiment of the present invention.

Fig. 4 is a schematic functional block diagram of an adjusting unit according to a second embodiment of the present invention.

Fig. 5 is a schematic circuit diagram of an adjusting unit according to a second embodiment of the present invention.

Fig. 6 is a schematic functional block diagram of an adjusting unit according to a third embodiment of the present invention.

Fig. 7 is a schematic circuit diagram of an adjusting unit according to a third embodiment of the present invention.

Fig. 8 is a schematic circuit diagram of an adjusting unit according to a fourth embodiment of the present invention.

Fig. 9 is a schematic circuit diagram of an adjusting unit according to a fifth embodiment of the present invention.

Fig. 10 is a schematic diagram of a primary coil and a secondary coil according to a first embodiment of the present invention.

Fig. 11 is a schematic diagram of a primary coil and a secondary coil according to a second embodiment of the present invention.

Fig. 12 is a schematic diagram of a primary coil and a secondary coil according to a third embodiment of the present invention.

Fig. 13 is a schematic diagram of a UPS power source according to a first embodiment of the present invention.

Wherein, each element in the figure is numbered:

100. voltage input terminal 200 detection unit

300. Control unit 400 adjustment unit

500. Voltage output 410 first set of voltage transforming units

Meta

420. Second group of transformation list 411 first group of sub-transformation

Meta-unit

412. Second sub-group 421 third sub-group transformer

Unit cell

422. Fourth subgroup voltage transformation 430 first group electronic switch

Unit switch

440. Second group electronic switch 451 first input connection

Closing end

452. Second input connection 461 first output connection

End-to-end

462. Second output connection 453 third input connection

End-to-end

454. Fourth input connection 463 and third output connection

End-to-end

464. Fourth output connections N1, N2, N3, primary coil

Terminal N4

481. First electronic switch 482 second electronic switch

483. Third electronic switch 484 fourth electronic switch

485. Fifth electronic switch 486 sixth electronic switch

a1 A first common terminal a2 and a first normally closed terminal

a3 First constant-start b1 second common end

b2 Second normally-closed end b3 second normally-open end

c1 Third common terminal c2 third normally closed terminal

c3 Third constant-start end d1 fourth common end

d2 Fourth normally closed end d3 and fourth normally open end

e1 A fifth common end e2 and a fifth normally closed end

e3 Fifth constant start f1 sixth common end

f2 A sixth normally closed end f3 and a sixth normally open end

4901. First voltage transformation unit 4902 second voltage transformation unit

4903. Third transformation unit 4904 fourth transformation unit

4905. Fifth voltage transformation unit 4906 sixth voltage transformation unit

4907. Seventh voltage transformation unit 4908 eighth voltage transformation unit

4909. Ninth transformer 4910 tenth transformer

4911. Eleventh variable voltage sheet 4912 twelfth variable voltage sheet

Meta-element

4913. Thirteenth transformation sheet 4914 and fourteenth transformation sheet

Meta-element

4915. Fifteenth voltage transformation sheet 4916 sixteenth voltage transformation sheet

Meta-element

M1, M2, M3, secondary coil 600 UPS power supply

M4

610. Shell 415 transformer

The achievement of the objects, functional features and advantages of the present invention will be further described with reference to the accompanying drawings, in conjunction with the embodiments.

Detailed Description

In the description of the present invention, it should be understood that the terms "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate describing the present invention and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and therefore should not be construed as limiting the present invention.

Furthermore, the terms "first," "second," and the like, are used for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include one or more such feature. In the description of the present invention, the meaning of "a plurality" is two or more, unless explicitly defined otherwise.

In the present invention, unless explicitly specified and limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly, and may be, for example, fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium; may be a communication between two elements or an interaction between two elements. The specific meaning of the above terms in the present invention can be understood by those of ordinary skill in the art according to the specific circumstances.

For a clearer and more accurate understanding of the present invention, reference will now be made in detail to the accompanying drawings. The accompanying drawings, in which like reference numerals refer to like elements, illustrate examples of embodiments of the invention. It is to be understood that the proportions shown in the drawings are not to scale as to the actual practice of the invention, and are for illustrative purposes only and are not drawn to scale.

Referring to fig. 1 in combination, a voltage regulator of a UPS power supply according to a first embodiment of the invention is shown. The voltage regulating device of the UPS power source includes a voltage input terminal 100, a detecting unit 200, a control unit 300, a regulating unit 400, and a voltage output terminal 500.

The voltage input terminal 100 is configured to receive an input voltage, where the input voltage includes a first input voltage and a second input voltage, and the first input voltage is different from the second input voltage. The first input voltage and the second input voltage are voltages input in the power grid system, wherein the first input voltage is 220V, and the second input voltage is 110V.

The detection unit 200 is electrically connected to the voltage input terminal 100, and is configured to detect whether the input voltage is the first input voltage or the second input voltage. For example, the UPS power source is connected to two sets of power grid systems with 220V and 110V, and the detection unit 200 may detect whether the input voltage is 220V or 110V.

The control unit 300 is electrically connected to the detection unit 200, and is configured to output a regulation level according to an input voltage and a preset output voltage, where the preset output voltage includes a first output voltage and a second output voltage, and the first output voltage is different from the second output voltage. The first output voltage is 220V, and the second output voltage is 110V. The preset output voltage can be input through input devices such as physical keys, virtual keys, a touch screen and the like.

The regulating unit 400 includes a plurality of electronic switches (not shown) and a transformer 415 (shown in fig. 2). The transformer 415 includes a plurality of transforming units selectively electrically connected to a plurality of electronic switches, which are electrically connected to the control unit 300 and the voltage input terminal 100, respectively, each of which enters a normally closed state or a normally open state according to an adjustment level, and the input voltage is adjusted to a preset output voltage of 220V or a preset output voltage of 110V by the transforming units of the plurality of electronic switches being different from the transforming units of the plurality of electronic switches being turned on in the normally closed state and the normally open state.

The voltage output terminal 500 is used for outputting a preset output voltage. The voltage output terminal 500 is electrically connected to the regulating unit 400 and a load (not shown) to supply a desired voltage to the load. In this embodiment, it can be understood that the voltage output by the voltage output terminal 500 is a preset output voltage of which the input voltage is regulated by the regulating unit 400.

Please refer to fig. 2 in combination, which is a functional block diagram of an adjusting unit according to a first embodiment of the present invention. In this embodiment, a plurality of transforming units may form a first group of transforming units 410 and a second group of transforming units 420. The plurality of electronic switches includes a first group of electronic switches 430, the first group of electronic switches 430 being electrically connected to the control unit 300 and the output voltage terminal 500, respectively, the first group of electronic switches 430 being also selectively electrically connected to one of the first group of transforming units 410 and the second group of transforming units 420.

The first set of electronic switches 430 further includes a first electronic switch 481 and a second electronic switch 482. The first group of transforming units 410 comprises a first sub-group of transforming units 411 and a second sub-group of transforming units 412, and the second group of transforming units 420 comprises a third sub-group of transforming units 421 and a fourth sub-group of transforming units 422.

In the present embodiment, the first sub-group transforming unit 411 includes a first transforming unit 4901, the second sub-group transforming unit 412 includes a second transforming unit 4902, the third sub-group transforming unit 421 includes a third transforming unit 4903, and the fourth sub-group transforming unit 421 includes a fourth transforming unit 4904. The first set of electronic switches 430 includes a first electronic switch 481 and a second electronic switch 482. Specifically, the first electronic switch 481 and the second electronic switch 482 are electrically connected to the control unit 300 (not shown), respectively, and the first electronic switch 481 is also selectively electrically connected to one of the first voltage transforming unit 4901, the second voltage transforming unit 4902, the third voltage transforming unit 4903, and the fourth voltage transforming unit 4904. The second electronic switch 481 is electrically connected to the voltage output terminal 500, and the second electronic switch 482 is also selectively electrically connected to one of the first voltage transforming unit 4901, the second voltage transforming unit 4902, the third voltage transforming unit 4903, and the fourth voltage transforming unit 4904.

In this embodiment, the input voltage may be the first input voltage 220V or the second input voltage 110V, and the preset output voltage may be the first output voltage 220V or the second output voltage 110V.

When the input voltage is 220V and the preset output voltage is 220V, the control unit 300 adjusts the first electronic switch 481 to be normally closed, and the second electronic switch 482 to be normally closed, so as to gate the first voltage transformation unit 4901. When the input voltage is 220V and the preset output voltage is 110V, the control unit 300 adjusts the first electronic switch 481 to be normally closed, and the second electronic switch 482 to be normally open, so as to gate the second voltage transformation unit 4902. When the input voltage is 110V and the preset output voltage is 110V, the control unit 300 adjusts the first electronic switch 481 to be normally open, and the second electronic switch 482 to be normally open, so as to gate the third voltage transformation unit 4903. When the input voltage is 110V and the preset output voltage is 220V, the control unit 300 adjusts the first electronic switch 481 to be normally open, and the second electronic switch 482 to be normally closed, so as to gate the fourth voltage transformation unit 4904.

Referring to fig. 3 in combination, in this embodiment, the electronic switch is a relay, and each transformer unit is composed of a primary winding 450 and a secondary winding 460. The first electronic switch 481 and the second electronic switch 482 are the first electronic switch 481 and the second electronic switch 482, respectively. The primary winding 450 includes a first input terminal 451, a second input terminal 452. The secondary winding 460 includes a first output terminal 461, a second output terminal 462. The first and

second input terminals

451, 452, respectively, in any combination with the first and

second output terminals

461, 462, respectively, may connect corresponding ones of the primary windings 450 and corresponding ones of the secondary windings 460 to the line.

Referring specifically to fig. 10, when the first input terminal 451 and the first output terminal 461 are connected to the line, the primary winding N1 and the secondary winding M1 are connected to the line, and the composition voltage ratio is 1:1, a first voltage transformation unit 4901. When the first input terminal 451 and the second output terminal 462 are connected to the line, the primary coil N1 and the secondary coil M2 are connected to the line, and the composition voltage ratio is 2: the second voltage transformation unit 4902 of 1. When the second input terminal 452 and the second output terminal 462 are connected to the line, the primary winding N2 and the secondary winding M2 are connected to the line, and the composition voltage ratio is 1: the third voltage transformation unit 4903 of 1. When the second input terminal 452 and the first output terminal 461 are connected to the line, the primary winding N2 and the secondary winding M1 are connected to the line, and the composition voltage ratio is 1: a fourth voltage transformation unit 4904 of 2.

The first electronic switch 481 includes a first common terminal a1, a first normally-closed terminal a2, and a first normally-open terminal a3. The second electronic switch 482 includes a second common terminal b1, a second normally-closed terminal b2, and a second normally-open terminal b3. The first common terminal a1 is electrically connected to the voltage input terminal 100, and the first normally-closed terminal a2 is electrically connected to the first input terminal 451; the first constant end a3 is electrically connected to the second input terminal 452. The second common terminal b1 is electrically connected to the voltage output terminal 500, and the second normally-closed terminal b2 is electrically connected to the first output terminal 461; the second open end b3 is electrically connected to the second output terminal 462.

When the first electronic switch 481 gates the first normally-closed terminal a2, the second electronic switch 482 gates the second normally-closed terminal b2, the first input terminal 451 and the first output terminal 461 are connected to the lines, and the primary winding N1 and the winding in the secondary winding are connected to the lines, i.e., the first transforming unit 4901 is turned on.

When the first electronic switch 481 gates the first normally-closed end a2, the second electronic switch 482 gates the second normally-closed end b3. The first input terminal 451 and the second output terminal 462 are connected to the line, and the primary winding N1 and the M2 winding in the secondary winding are connected to the line, i.e., the second transforming unit 4902 is gated.

When the first electronic switch 481 gates the first open end a3, the second electronic switch 482 gates the second open end b3. The second input terminal 452 and the second output terminal 462 are connected to the line, and the primary winding N2 and the M2 winding in the secondary winding are connected to the line, i.e., the third transforming unit 4903 is gated.

When the first electronic switch 481 gates the first normally-open end a3, the second electronic switch 482 gates the second normally-closed end b2. The second input terminal 452 and the first output terminal 461 are connected to the line, and the primary winding N2 and the secondary winding M1 are connected to the line, i.e., the fourth transforming unit 4904 is gated.

In the above embodiment, the voltage adjusting device of the UPS power source may automatically select the matched voltage transformation unit according to different input voltages and preset output voltages, and adjust the input voltage to the preset output voltage, so that the UPS power source may adapt to different power grids providing different voltages, and has good compatibility. Further, in the above embodiment, the voltage adjusting device of the UPS power source may adapt to different input voltages and preset output voltages by selecting the voltage transforming units with different ratios through the switch, which is relatively fast to expand. Furthermore, the transformation units with different ratios are further provided with a plurality of input terminals and output terminals respectively in a group of primary coils and secondary coils, so that the arrangement of electronic switches can be reduced, and the circuit architecture of the whole UPS is more compact and optimized. Further, the expansion of the whole circuit is facilitated by the way that the primary winding and the secondary winding form a transformation unit.

In some possible embodiments, the UPS power source includes multiple modes of operation. The UPS power supply can also select an adaptive transformation unit under different modes to adjust the input voltage to a preset output voltage. In particular, the various modes of operation are determined by the input voltage. Taking three operation modes as examples, for example, the input voltage belongs to the normal range and enters the first mode; the input voltage enters a second mode in a high voltage range; the input voltage enters the third mode in the low voltage range. Wherein the input voltage may be detected by the detection unit 200 to determine whether it belongs to the low voltage range, the normal range or the high voltage range.

Please refer to fig. 4 in combination, which is a functional block diagram of an adjusting unit according to a second embodiment of the present invention. In this embodiment, three operation modes are described as examples. The voltage regulating devices of the UPS power source of the second embodiment and the first embodiment are different in that the first sub-group transforming unit, the second sub-group transforming unit, the third sub-group transforming unit, and the fourth sub-group transforming unit include three transforming units, respectively, wherein the first sub-group transforming unit 411 includes a first transforming unit 4901, a fifth transforming unit 4905, and a ninth transforming unit 4909, the second sub-group transforming unit 412 includes a second transforming unit 4902, a sixth transforming unit 4906, and a tenth transforming unit 4910, the third sub-group transforming unit 421 includes a third transforming unit 4903, a seventh transforming unit 4907, and an eleventh transforming unit 4911, and the fourth sub-group transforming unit 421 includes a fourth transforming unit 4904, an eighth transforming unit 4908, and a twelfth transforming unit 4912. The plurality of electronic switches includes two sets of electronic switches, a first set of electronic switches 430 and a second set of electronic switches 440, respectively.

Further, the first set of electronic switches 430 includes two electronic switches, a first electronic switch 481 and a second electronic switch 482, respectively. The second set of electronic switches 430 includes four electronic switches, a third electronic switch 483, a fourth electronic switch 484, a fifth electronic switch 485, and a sixth electronic switch 486, respectively. The first electronic switch 481, the second electronic switch 482, the third electronic switch 483, the fourth electronic switch 484, the fifth electronic switch 485, and the sixth electronic switch 486 are respectively electrically connected to the control unit 300 (not shown), and the first electronic switch 481 is also selectively electrically connected to one of the three electronic switches 483 and the fifth electronic switch 485. The second electronic switch 481 is electrically connected to the voltage output 500, and the second electronic switch 482 is also selectively electrically connected to one of the fourth electronic switch 484 and the sixth electronic switch 486. The third electronic switch 483 is selectively electrically connected to the input ends of the first transforming unit 4901, the second transforming unit 4902, the fifth transforming unit 4905, the sixth transforming unit 4906, the ninth transforming unit 4909 or the tenth transforming unit 4910. The fifth electronic switch 485 is selectively electrically connected to the input terminal of the third transforming unit 4903, the fourth transforming unit 4904, the seventh transforming unit 4907, the eighth transforming unit 4908, the eleventh transforming unit 4911 or the twelfth transforming unit 4912. The fourth electronic switch 484 is selectively electrically connected to the output ends of the first transforming unit 4901, the fourth transforming unit 4904, the fifth transforming unit 4905, the eighth transforming unit 4908, the ninth transforming unit 4909 or the twelfth transforming unit 4912. The sixth electronic switch 486 is selectively electrically connected to the output of the second transformer unit 4902, the third transformer unit 4903, the sixth transformer unit 4906, the seventh transformer unit 4907, the tenth transformer unit 4910 or the eleventh transformer unit 4911.

In this embodiment, the input voltage may be any one of 200V-240V or 100V-120V, and the preset output voltage may be any one of 200V-240V or 100V-120V.

When the input voltage is 220V or 110V and belongs to the normal voltage range, the voltage transformation unit with the working mode of the corresponding subgroup as the first mode is selected.

When the input voltage is 220V-240V or 110V-120V, the voltage belongs to the high voltage range, and the voltage transformation unit with the second working mode in the corresponding subgroup is selected.

When the input voltage is 200V-220V or 100V-110V, the voltage belongs to the low voltage range, and the voltage transformation unit with the working mode of the corresponding subgroup as the third mode is selected.

Further, when the input voltage is 220V and the preset output voltage is 220V, the first sub-group of the voltage transformation units are gated.

When the input voltage is 220V, the first mode is selected, the control unit 300 adjusts the third electronic switch 483 to be normally closed, and the fourth electronic switch 484 to be normally closed, so as to gate the first transforming unit 4901.

When the input voltage is 240V, the second mode is selected, the control unit 300 adjusts the third electronic switch 483 to be normally closed, and the fourth electronic switch 484 to be normally open, so as to gate the fifth voltage transformation unit 4905.

When the input voltage is 200V, the third mode is selected, the control unit 300 adjusts the third electronic switch 483 to be normally open, and the fourth electronic switch 484 to be normally closed, so as to gate the ninth voltage transformation unit 4909.

When the input voltage is 220V and the preset output voltage is 110V, the second subgroup of the voltage transformation units are gated.

When the input voltage is 220V, the first mode is selected, the control unit 300 adjusts the third electronic switch 483 to be normally closed, and the sixth electronic switch 486 to be normally closed, so as to gate the second voltage transformation unit 4902.

When the input voltage is 240V, the second mode is selected, and the control unit 300 adjusts the third electronic switch 483 to be normally closed, and the sixth electronic switch 486 to be normally open, so as to gate the sixth voltage transformation unit 4906.

When the input voltage is 200V, the third mode is selected, and the control unit 300 adjusts the third electronic switch 483 to be normally open, and the sixth electronic switch 486 to be normally closed, so as to gate the tenth transformation unit 4910.

When the input voltage is 110V and the preset output voltage is 110V, the third subgroup of the voltage transformation units are gated.

When the input voltage is 110V, the first mode is selected, the control unit 300 adjusts the fifth electronic switch 485 to be normally closed, and the sixth electronic switch 486 to be normally closed, so as to gate the third voltage transformation unit 4903.

When the input voltage is 120V, the second mode is selected, the control unit 300 adjusts the fifth electronic switch 485 to be normally closed, and the sixth electronic switch 486 to be normally open, so as to gate the seventh voltage transforming unit 4907.

When the input voltage is 100V, the third mode is selected, the control unit 300 adjusts the fifth electronic switch 485 to be normally open, and the sixth electronic switch 486 to be normally closed, so as to gate the eleventh transformation unit 4911.

When the input voltage is 110V and the preset output voltage is 220V, the fourth subgroup of the voltage transformation units are gated.

When the input voltage or the like is 110V, the first mode is selected, and the control unit 300 adjusts the fifth electronic switch 485 to be normally closed and the fourth electronic switch 484 to be normally closed so as to gate the fourth transforming unit 4904.

When the input voltage is 120V, the second mode is selected, the control unit 300 adjusts the fifth electronic switch 485 to be normally closed, and the fourth electronic switch 484 to be normally open, so as to gate the eighth transforming unit 4908.

When the input voltage is 100V, the third mode is selected, and the control unit 300 adjusts the fifth electronic switch 485 to be normally open, and the fourth electronic switch 484 to be normally closed, so as to gate the twelfth transformation unit 4912.

In this embodiment, the electronic switch is a relay. The relation between the operation mode and each electronic switch state is shown in tables 1 to 4. Wherein 1 represents normally open, 0 represents normally closed, and X represents no influence.

TABLE 1 switch State comparison Table when the input voltage is 220V and the preset output voltage is 220V

TABLE 2 switch State comparison Table when the input voltage is 220V and the preset output voltage is 110V

TABLE 3 switch State comparison Table when the input voltage is 110V and the preset output voltage is 110V

TABLE 4 switch State comparison Table when the input voltage is 110V and the preset output voltage is 220V

Referring to fig. 11 in combination, each transformer unit is composed of a primary winding 450 and a secondary winding 460. The first electronic switch 481, the second electronic switch 482, the third electronic switch 483, the fourth electronic switch 484, the fifth electronic switch 485, and the sixth electronic switch 486 are the first electronic switch 481, the second electronic switch 482, the third electronic switch 483, the fourth electronic switch 484, the fifth electronic switch 485, and the sixth electronic switch 486. The primary winding comprises a first input terminal 451, a second input terminal 452, a third input terminal 453 and a fourth input terminal 454. The secondary winding includes a first output terminal 461, a second output terminal 462, a third output terminal 463 and a fourth output terminal 464. The first input terminal 451, the second input terminal 452, the third input terminal 453 or the fourth input terminal 454, in any combination with the first output terminal 461, the second output terminal 462, the third output terminal 463 or the fourth output terminal 464, respectively, may connect the primary winding in the primary winding and the secondary winding in the secondary winding corresponding thereto to the lines.

When the first input terminal 451 and the first output terminal 461 are connected to the line, the primary coil N1 and the secondary coil M1 are connected to the line, and the composition voltage ratio is 1:1, a first voltage transformation unit 4901.

When the first input terminal 451 and the third output terminal 463 are connected to the line, the primary coil N1 and the secondary coil M3 are connected to the line, and the composition voltage ratio is 2: the second voltage transformation unit 4902 of 1.

When the third input terminal 453 and the third output terminal 463 are connected to the line, the primary coil N3 and the secondary coil M3 are connected to the line, and the component voltage ratio is 1: the third voltage transformation unit 4903 of 1.

When the third input terminal 453 and the first output terminal 461 are connected to the line, the primary coil N3 and the secondary coil M1 are connected to the line, and the composition voltage ratio is 1: a fourth voltage transformation unit 4904 of 2.

When the first input terminal 451 and the second output terminal 462 are connected to the line, the primary coil N1 and the secondary coil M2 are connected to the line, and the composition voltage ratio is greater than 1: the fifth voltage transformation unit 4905 of 1.

When the first input terminal 451 and the fourth output terminal 464 are connected to the line, the primary coil N1 and the secondary coil M4 are connected to the line, and the composition voltage ratio is greater than 2: sixth voltage transformation unit 4906 of 1.

When the third input terminal 453 and the fourth output terminal 464 are connected to the line, the primary coil N3 and the secondary coil M4 are connected to the line, and the composition voltage ratio is greater than 1: the seventh voltage transformation unit 4907 of 1.

When the third input terminal 453 and the second output terminal 462 are connected to the line, the primary coil N3 and the secondary coil M2 are connected to the line, and the composition voltage ratio is greater than 1: the eighth voltage transformation unit 4908 of 2.

When the second input terminal 452 and the first output terminal 461 are connected to the line, the primary winding N2 and the secondary winding M1 are connected to the line, and the composition voltage ratio is less than 1: the ninth voltage transformation unit 4909 of 1.

When the second input terminal 452 and the third output terminal 463 are connected in line, the primary winding N2 and the secondary winding M3 are connected in line, and the component voltage ratio is less than 2: a tenth voltage transformation unit 4910 of 1.

When the fourth input terminal 454 and the third output terminal 463 are connected in line, the primary coil N4 and the secondary coil M3 are connected in line, and the component voltage ratio is less than 1: an eleventh voltage transformation unit 4911 of 1.

When the fourth input terminal 454 and the first output terminal 461 are connected to the line, the primary coil N4 and the secondary coil M1 are connected to the line, and the composition voltage ratio is less than 1: a twelfth voltage transformation unit 4912 of 2.

Referring to fig. 5, a schematic circuit diagram of an adjusting unit according to a second embodiment of the invention is shown. The first electronic switch 481 includes a first common terminal a1, a first normally-closed terminal a2, and a first normally-open terminal a3; the second electronic switch 482 includes a second common terminal b1, a second normally-closed terminal b2, and a second normally-open terminal b3; the third electronic switch 483 includes a third common terminal c1, a third normally-closed terminal c2, and a third normally-open terminal c3; the fourth electronic switch 484 includes a fourth common terminal d1, a fourth normally-closed terminal d2, and a fourth normally-open terminal d3; the fifth electronic switch 485 includes a fifth common terminal e1, a fifth normally-closed terminal e2, and a fifth normally-open terminal e3; the sixth electronic switch 486 includes a sixth common terminal f1, a sixth normally-closed terminal f2, and a sixth normally-open terminal f3.

The first common terminal a1 is electrically connected with the voltage input terminal 100, the first normally-closed terminal a2 is electrically connected with the third common terminal c1, and the first normally-open terminal a3 is electrically connected with the fifth common terminal e 1; the third normally-closed end c2 is electrically connected to the first input terminal 451, and the third normally-closed end c3 is electrically connected to the second input terminal 452; the fifth normally-closed end e2 is electrically connected to the third input terminal 453, and the fifth normally-closed end e3 is electrically connected to the fourth input terminal 454;

the fourth normally-closed end d2 is electrically connected to the first output terminal 461, and the fourth normally-closed end d3 is electrically connected to the second output terminal 462; the sixth normally-closed end f2 is electrically connected to the third output terminal 463, and the sixth normally-closed end f3 is electrically connected to the fourth output terminal 464; the second common terminal b1 is electrically connected to the voltage output terminal 500, the second normally-closed terminal b2 is electrically connected to the fourth common terminal d1, and the second normally-open terminal b3 is electrically connected to the sixth common terminal f 1.

When the first electronic switch 481 gates the first normally-closed terminal a2, the second electronic switch 482 gates the second normally-closed terminal b2, the third electronic switch 483 gates the third normally-closed terminal c2, the fourth electronic switch 484 gates the fourth normally-closed terminal d2, and the primary winding N1 and the secondary winding M1 are connected to the circuit.

When the first electronic switch 481 gates the first normally-closed terminal a2, the second electronic switch 482 gates the second normally-closed terminal b3, the third electronic switch 483 gates the third normally-closed terminal c2, the sixth electronic switch 486 gates the sixth normally-closed terminal f2, and the primary winding N1 and the secondary winding M3 are connected to the circuit.

When the first electronic switch 481 gates the first normally-open end a3, the second electronic switch 482 gates the second normally-open end b3, the fifth electronic switch 485 gates the fifth normally-closed end e2, and the sixth electronic switch 486 gates the sixth normally-closed end f2, with the primary winding N3 and the secondary winding M3 connected into the circuit.

When the first electronic switch 481 gates the first normally-closed end a3, the second electronic switch 482 gates the second normally-closed end b2, the fifth electronic switch 485 gates the fifth normally-closed end e2, the fourth electronic switch 484 gates the fourth normally-closed end d2, and the primary winding N3 and the secondary winding M1 are connected to the circuit.

When the first electronic switch 481 gates the first normally-closed terminal a2, the second electronic switch 482 gates the second normally-closed terminal b2, the third electronic switch 483 gates the third normally-closed terminal c2, the fourth electronic switch 484 gates the fourth normally-open terminal d3, and the primary winding N1 and the secondary winding M2 are connected to the circuit.

When the first electronic switch 481 gates the first normally-closed end a2, the second electronic switch 482 gates the second normally-closed end b3, the third electronic switch 483 gates the third normally-closed end c2, the sixth electronic switch 486 gates the sixth normally-closed end f3, and the primary winding N1 and the secondary winding M4 are connected to the circuit.

When the first electronic switch 481 gates the first open end a3, the second electronic switch 482 gates the second open end b3, the fifth electronic switch 485 gates the fifth closed end e2, the sixth electronic switch 486 gates the sixth open end f3, and the primary winding N3 and the secondary winding M4 are connected into the circuit.

When the first electronic switch 481 gates the first normally-open end a3, the second electronic switch 482 gates the second normally-closed end b2, the fifth electronic switch 485 gates the fifth normally-closed end e2, the fourth electronic switch 484 gates the fourth normally-open end d3, and the primary winding N3 and the secondary winding M2 are connected to the circuit.

When the first electronic switch 481 gates the first normally-closed terminal a2, the second electronic switch 482 gates the second normally-closed terminal b2, the third electronic switch 483 gates the third normally-closed terminal c3, the fourth electronic switch 484 gates the fourth normally-closed terminal d2, and the primary winding N2 and the secondary winding M1 are connected to the circuit.

When the first electronic switch 481 gates the first normally-closed terminal a2, the second electronic switch 482 gates the second normally-closed terminal b3, the third electronic switch 483 gates the third normally-closed terminal c3, the sixth electronic switch 486 gates the sixth normally-closed terminal f2, and the primary winding N2 and the secondary winding M3 are connected to the circuit.

When the first electronic switch 481 gates the first open end a3, the second electronic switch 482 gates the second open end b3, the fifth electronic switch 485 gates the fifth open end e3, the sixth electronic switch 486 gates the sixth closed end f2, and the primary winding N4 and the secondary winding M3 are connected into the line.

When the first electronic switch 481 gates the first normally-closed end a3, the second electronic switch 482 gates the second normally-closed end b2, the fifth electronic switch 485 gates the fifth normally-closed end e3, and the fourth electronic switch 484 gates the fourth normally-closed end d2, with the primary winding N4 and the secondary winding M1 connected to the circuit.

In the above embodiment, the UPS power source is further divided into a plurality of modes, and the adaptive voltage transformation unit is selected in different modes, so that the voltage regulated by the voltage regulator is more accurate.

Referring to fig. 6-7, schematic functional block diagrams and specific circuit diagrams of an adjusting unit according to a third embodiment of the present invention are shown. In this embodiment, four modes of operation of the UPS are described. In this embodiment, the low voltage range is divided into a first low voltage range and a second low voltage range, the second low voltage range being lower than the first low voltage range. The second low voltage range corresponds to the third mode and the first low voltage range corresponds to the fourth mode. When the input voltage is any one of 210V-220V or 105V-110V, the voltage belongs to the first low voltage range, and the voltage transformation unit with the fourth working mode in the corresponding subgroup is selected. When the input voltage is 200V-210V or 100V-105V, the voltage belongs to the second low voltage range, and the voltage transformation unit with the working mode of the corresponding subgroup as the third mode is selected.

The voltage regulating device of the UPS power source of the third embodiment and the second embodiment differ in that: the first, second, third and fourth sub-group transforming units comprise four transforming units, respectively, wherein the first sub-group transforming unit 411 comprises a first transforming unit 4901, a fifth transforming unit 4905, a ninth transforming unit 4909 and a thirteenth transforming unit 4913. The second sub-group transformation unit 412 includes a second transformation unit 4902, a sixth transformation unit 4906, a tenth transformation unit 4910, and a fourteenth transformation unit 4914. The third sub-group voltage transformation unit 421 includes a third voltage transformation unit 4903, a seventh voltage transformation unit 4907, an eleventh voltage transformation unit 4911, and a fifteenth voltage transformation unit 4915. The fourth sub-group transformation unit 421 includes a fourth transformation unit 4904, an eighth transformation unit 4908, a twelfth transformation unit 4912, and a sixteenth transformation unit 4916.

Specifically, the third electronic switch 483 is selectively electrically connected to the input end of the first transforming unit 4901, the second transforming unit 4902, the fifth transforming unit 4905, the sixth transforming unit 4906, the ninth transforming unit 4909, the tenth transforming unit 4910, the thirteenth transforming unit 4913, or the fourteenth transforming unit 4914. The fifth electronic switch 485 is selectively electrically connected to the input terminal of the third transforming unit 4903, the fourth transforming unit 4904, the seventh transforming unit 4907, the eighth transforming unit 4908, the eleventh transforming unit 4911, the twelfth transforming unit 4912, the fifteenth transforming unit 4915, or the sixteenth transforming unit 4916. The fourth electronic switch is selectively electrically connected to the output ends of the first transforming unit 4901, the fourth transforming unit 4904, the fifth transforming unit 4905, the eighth transforming unit 4908, the ninth transforming unit 4909, the twelfth transforming unit 4912, the thirteenth transforming unit 4913, or the sixteenth transforming unit 4916. The sixth electronic switch is selectively electrically connected to the output end of the second transforming unit 4902, the third transforming unit 4903, the sixth transforming unit 4906, the seventh transforming unit 4907, the tenth transforming unit 4910, the eleventh transforming unit 4911, the fourteenth transforming unit 4914 or the fifteenth transforming unit 4915.

When the first sub-group of the transformation units is turned on, the fourth mode is selected when the input voltage is 210V, and the control unit 300 adjusts the third electronic switch 483 to be normally open, and the fourth electronic switch 484 to be normally open, so as to gate the thirteenth transformation unit 4913.

When the second sub-group of transformation units is turned on, the fourth mode is selected when the input voltage is 210V, and the control unit 300 adjusts the third electronic switch 483 to be normally open, and the sixth electronic switch 486 to be normally open, so as to gate the fourteenth transformation unit 4914.

When the third sub-group of the transformation units is turned on, the fourth mode is selected when the input voltage is 105V, and the control unit 300 adjusts the fifth electronic switch 485 to be normally open and the sixth electronic switch 484 to be normally open to gate the fifteenth transformation unit 4915.

When the fourth sub-group of the transformation units is turned on, the fourth mode is selected when the input voltage is 105V, and the control unit 300 adjusts the fifth electronic switch 485 to be normally open, and the fourth electronic switch 484 to be normally open, so as to gate the sixteenth transformation unit 4916.

In this embodiment, the electronic switch is a relay. The relation between the working mode and each electronic switch state is shown in tables 1-4, 1 represents normally open, 0 represents normally closed, and X represents unaffected.

Please refer to fig. 12 in combination, which is a specific structural diagram of a plurality of transformer units in the third embodiment. In the present embodiment, each transformer unit is constituted by a primary winding 450 and a secondary winding 460, which are identical in structure to the primary winding 450 and the secondary winding 460 in the second embodiment. Which is different from the second embodiment in that the number of coils that the second 462 and fourth 464 output terminals of the secondary winding are connected to the circuit in this embodiment is larger than the number of coils that the second 462 and fourth 464 output terminals of the secondary winding are connected to the circuit in the second embodiment. Which differs from the primary winding 450 and secondary winding 460 of the second embodiment in that: the second input terminal 452, the second output terminal 462, the fourth input terminal 454 and the fourth output terminal 464 of the primary winding 450 and the secondary winding 460 are connected in a different manner. In the second embodiment, the second input terminal 452, the fourth input terminal 454, and the second output terminal 462, the fourth output terminal 464 do not form a corresponding transforming unit for the pair of access lines.

In this embodiment, when the second input terminal 452 and the second output terminal 462 are connected to the line, the primary winding N2 and the secondary winding M2 are connected to the line, and the composition voltage ratio is less than 1: thirteenth transformer unit 4913 of 1.

When the second input terminal 452 and the fourth output terminal 464 are connected to the line, the primary winding N2 and the secondary winding M4 are connected to the line, and the composition voltage ratio is less than 2: a fourteenth voltage transformation unit 4914 of 1.

When the fourth input terminal 454 and the fourth output terminal 464 are connected to the line, the primary winding N4 and the secondary winding M4 are connected to the line, and the composition voltage ratio is less than 1: the fifteenth voltage transformation unit 4915 of 1.

When the fourth input terminal 454 and the second output terminal 462 are connected to the line, the primary winding N4 and the secondary winding M2 are connected to the line, and the composition voltage ratio is less than 1: a sixteenth voltage transformation unit 4916 of 2.

Referring to fig. 7 again, the first common terminal a1 is electrically connected to the voltage input terminal 100, the first normally-closed terminal a2 is electrically connected to the third common terminal c1, and the first normally-open terminal a3 is electrically connected to the fifth common terminal e 1; the third normally-closed end c2 is electrically connected to the first input terminal 451, and the third normally-closed end c3 is electrically connected to the second input terminal 452; the fifth normally-closed end e2 is electrically connected to the third input terminal 453, and the fifth normally-closed end e3 is electrically connected to the fourth input terminal 454; the fourth normally-closed end d2 is electrically connected to the first output terminal 461, and the fourth normally-closed end d3 is electrically connected to the second output terminal 462; the sixth normally-closed end f2 is electrically connected to the third output terminal 463, and the sixth normally-closed end f3 is electrically connected to the fourth output terminal 464; the second common terminal b1 is electrically connected to the voltage output terminal 500, the second normally-closed terminal b2 is electrically connected to the fourth common terminal d1, and the second normally-open terminal b3 is electrically connected to the sixth common terminal f 1.

When the first electronic switch 481 gates the first normally-closed terminal a2, the second electronic switch 482 gates the second normally-closed terminal b2, the third electronic switch 483 gates the third normally-open terminal c3, and the fourth electronic switch 484 gates the fourth normally-open terminal d3. The primary winding N2 and the secondary winding M2 are connected to the line.

When the first electronic switch 481 gates the first normally-closed end a2, the second electronic switch 482 gates the second normally-closed end b3, the third electronic switch 483 gates the third normally-open end c3, the sixth electronic switch 486 gates the sixth normally-open end f3, and the primary winding N2 and the secondary winding M4 are connected to the circuit.

When the first electronic switch 481 gates the first open end a3, the second electronic switch 482 gates the second open end b3, the fifth electronic switch 485 gates the fifth open end e3, the sixth electronic switch 486 gates the sixth open end f3, and the primary winding N4 and the secondary winding M4 are connected into the line.

When the first electronic switch 481 gates the first normally-open end a3, the second electronic switch 482 gates the second normally-closed end b2. The fifth electronic switch 485 gates the fifth normal open end e3 and the fourth electronic switch 484 gates the fourth normal open end d3, the primary winding N4 and the secondary winding M2 into the line.

In some possible embodiments, the preset output voltage may also only set the first output voltage or the second output voltage, and accordingly, the UPS power source may also reduce the number of transformation units, so as to ensure the selection of the adaptive transformation units, simplify the devices of the UPS power source, and save cost.

Referring to fig. 8, a schematic circuit diagram of an adjusting unit according to a fourth embodiment of the invention is shown. In this embodiment, the input of either 220V or 110V is taken as an example, and the output of 110V is taken as an output. The difference between the adjusting unit circuit provided in the fourth embodiment and the adjusting unit circuit provided in the second embodiment is that the number of the second group of electronic switches in the present embodiment is two less than the number of the second group of electronic switches in the second embodiment. The second set of electronic switches in this embodiment only requires the third electronic switch 483 and the fifth electronic switch 485.

The fourth embodiment is structurally different from the second embodiment in that the present embodiment has fewer first and fourth sub-group transforming units than the second embodiment. The first group of transforming units in this embodiment comprises a second sub-group of transforming units 412, and the second group of transforming units comprises a third sub-group of transforming units 421. The first group of transforming units in the second embodiment comprises a first sub-group of transforming units 411 and a second sub-group of transforming units 412, and the second group of transforming units comprises a third sub-group of transforming units 421 and a fourth sub-group of transforming units 422.

In the present embodiment, the first electronic switch 481 is also selectively electrically connected to one of the three electronic switch 483 and the fifth electronic switch 485. The third electronic switch 483 is selectively electrically connected to the input terminal of the second transforming unit 4902, the sixth transforming unit 4906 or the tenth transforming unit 4910. The fifth electronic switch 485 is selectively electrically connected to the input terminal of the third transforming unit 4903, the seventh transforming unit 4907, or the eleventh transforming unit 4911. The second electronic switch is selectively electrically connected to the output end of the second transforming unit 4902, the third transforming unit 4903, the sixth transforming unit 4906, the seventh transforming unit 4907, the tenth transforming unit 4910 or the eleventh transforming unit 4911. The second electronic switch 481 is electrically connected to the voltage output terminal 500.

In this embodiment, the input voltage may be the first input voltage 220V or the second input voltage 110V, and the preset output voltage is the second input voltage 110V.

When the input voltage is 220V, the first mode is selected, and the control unit 300 adjusts the third electronic switch 483 to be normally closed, and the second electronic switch 482 to be normally closed to gate the second voltage transformation unit 4902.

When the input voltage is 240V, the second mode is selected, and the control unit 300 adjusts the third electronic switch 483 to be normally closed, and the second electronic switch 482 to be normally open to gate the sixth voltage transformation unit 4906.

When the input voltage is 200V, the third mode is selected, and the control unit 300 adjusts the third electronic switch 483 to be normally open, and the second electronic switch 482 to be normally closed to gate the tenth transformation unit 4910.

When the input voltage is 110V, the first mode is selected, the control unit 300 adjusts the fifth electronic switch 485 to be normally closed, and the second electronic switch 482 to be normally closed to gate the third voltage transformation unit 4903.

When the input voltage is 120V, the second mode is selected, and the control unit 300 adjusts the fifth electronic switch 485 to be normally closed, and the second electronic switch 482 to be normally open to gate the seventh voltage transforming unit 4907.

When the input voltage is 100V, the third mode is selected, and the control unit 300 adjusts the fifth electronic switch 485 to be normally open, and the second electronic switch 482 to be normally closed to gate the eleventh transformation unit 4911.

The primary winding comprises a first input terminal 451, a second input terminal 452, a third input terminal 453 and a fourth input terminal 454. The secondary winding includes a third output terminal 463 and a fourth output terminal 464. The first input terminal 451, the second input terminal 452, the third input terminal 453 or the fourth input terminal 454, in any combination with the third output terminal 463 or the fourth output terminal 464, respectively, may tap a corresponding primary coil in the primary winding and a corresponding secondary coil in the secondary winding into the line.

Referring to fig. 11 in combination, when the first input terminal 451 and the third output terminal 463 are connected to the line, the primary coil N1 and the secondary coil M3 are connected to the line, and the composition voltage ratio is 2: the second voltage transformation unit 4902 of 1.

Referring to fig. 8 again, in this embodiment, the electronic switch is a relay, and the first electronic switch 481 includes a first common terminal a1, a first normally-closed terminal a2, and a first normally-open terminal a3; the second electronic switch 482 includes a second common terminal b1, a second normally-closed terminal b2, and a second normally-open terminal b3; the third electronic switch 483 includes a third common terminal c1, a third normally-closed terminal c2, and a third normally-open terminal c3; the fifth electronic switch 485 includes a fifth common terminal e1, a fifth normally-closed terminal e2, and a fifth normally-open terminal e3.

The first normally-closed end a2 is electrically connected with the third common end c1, and the first normally-open end a3 is electrically connected with the fifth common end e 1; the third normally-closed end c2 is electrically connected to the first input terminal 451, and the third normally-closed end c3 is electrically connected to the second input terminal 452; the fifth normally-closed end e2 is electrically connected to the third input terminal 453, and the fifth normally-closed end e3 is electrically connected to the fourth input terminal 454; the second common terminal b1 is electrically connected to the voltage output terminal 500, the second normally-closed terminal b2 is electrically connected to the third output terminal 463, and the second normally-open terminal b3 is electrically connected to the fourth output terminal 464.

When the first electronic switch 481 gates the first normally-closed terminal a2, the second electronic switch 482 gates the second normally-closed terminal b2, and the third electronic switch 483 gates the third normally-closed terminal c2. The primary winding N1 and the secondary winding M3 are connected to the line.

When the first electronic switch 481 gates the first normally-closed terminal a2, the second electronic switch 482 gates the second normally-closed terminal b3, and the third electronic switch 483 gates the third normally-closed terminal c2, the primary winding N1 and the secondary winding M4 are connected to the circuit.

When the first electronic switch 481 gates the first normally-closed terminal a2, the second electronic switch 482 gates the second normally-closed terminal b2, and the third electronic switch 483 gates the third normally-open terminal c3, the primary winding N2 and the secondary winding M3 are connected to the circuit.

When the first electronic switch 481 gates the first normally-open end a3, the second electronic switch 482 gates the second normally-closed end b2, the fifth electronic switch 485 gates the fifth normally-closed end e2, and the primary winding N3 and the secondary winding M3 are connected into the line.

When the first electronic switch 481 gates the first open end a3, the second electronic switch 482 gates the second open end b3, the fifth electronic switch 485 gates the fifth open end e2, and the primary winding N3 and the secondary winding M4 are connected into the line.

When the first electronic switch 481 gates the first normally-open end a3, the second electronic switch 482 gates the second normally-closed end b2, and the fifth electronic switch 485 gates the fifth normally-open end e3, the primary winding N4 and the secondary winding M3 are connected into the line.

The embodiment is a simplified version of the second embodiment, and in practical application, the circuit configuration of the control unit can be adjusted according to specific needs, so that the circuit is simplified, and the practicability of the UPS is improved. Besides the above feature application combinations, the architecture pruning applications or any collocation listed in the above embodiments are also within the protection scope of the present invention.

Referring to fig. 9, a schematic circuit diagram of an adjusting unit according to a fifth embodiment of the invention is shown. In this embodiment, the input of either 220V or 110V is taken as an example, and the output of 220V is taken as an output. The difference between the regulating unit circuit provided in the fifth embodiment and the regulating unit circuit provided in the second embodiment is that the number of the second group of electronic switches in the present embodiment is two less than that of the second group of electronic switches in the second embodiment. The second set of electronic switches in this embodiment only requires the third electronic switch 483 and the fifth electronic switch 485.

The fifth embodiment is structurally different from the second embodiment in that the present embodiment has fewer second and third sub-group transforming units than the second embodiment. The first group of transforming units in this embodiment comprises a first sub-group of transforming units 411, and the second group of transforming units comprises a fourth sub-group of transforming units 422. The first group of transforming units in the second embodiment comprises a first sub-group of transforming units 411 and a second sub-group of transforming units 412, and the second group of transforming units comprises a third sub-group of transforming units 421 and a fourth sub-group of transforming units 422.

In the present embodiment, the first electronic switch 481 is also selectively electrically connected to one of the three electronic switch 483 and the fifth electronic switch 485. The third electronic switch 483 is selectively electrically connected to the input terminal of the first transforming unit 4901, the fifth transforming unit 4905 or the ninth transforming unit 4909. The fifth electronic switch 485 is selectively electrically connected to the input terminal of the fourth transforming unit 4904, the eighth transforming unit 4908 or the twelfth transforming unit 4912. The second electronic switch is selectively electrically connected to the output end of the first transforming unit 4901, the fifth transforming unit 4905, the ninth transforming unit 4909, the fourth transforming unit 4904, the eighth transforming unit 4908 or the twelfth transforming unit 4912. The second electronic switch 481 is electrically connected to the voltage output terminal 500.

In this embodiment, the input voltage may be the first input voltage 220V or the second input voltage 110V, and the preset output voltage is the second input voltage 220V.

When the input voltage is 220V and the preset output voltage is 220V, the first subgroup of voltage transformation units are gated.

When the input voltage is 220V, the first mode is selected, the control unit 300 adjusts the third electronic switch 483 to be normally closed, and the second electronic switch 482 to be normally closed, so as to gate the first voltage transformation unit 4901.

When the input voltage is 240V, the second mode is selected, the control unit 300 adjusts the third electronic switch 483 to be normally closed, and the second electronic switch 482 to be normally open, so as to gate the fifth voltage transformation unit 4905.

When the input voltage is 200V, the third mode is selected, and the control unit 300 adjusts the third electronic switch 483 to be normally open, and the second electronic switch 482 to be normally closed, so as to gate the ninth voltage transformation unit 4909.

When the input voltage is 110V, the first mode is selected, the control unit 300 adjusts the fifth electronic switch 485 to be normally closed, and the second electronic switch 482 to be normally closed, so as to gate the fourth voltage transformation unit 4904.

When the input voltage is 120V, the second mode is selected, the control unit 300 adjusts the fifth electronic switch 485 to be normally closed, and the second electronic switch 482 to be normally open, so as to gate the eighth voltage transforming unit 4908.

When the input voltage is 100V, the third mode is selected, the control unit 300 adjusts the fifth electronic switch 485 to be normally open, and the second electronic switch 482 to be normally closed, so as to gate the twelfth transformation unit 4912.

The primary winding comprises a first input terminal 451, a second input terminal 452, a third input terminal 453 and a fourth input terminal 454. The secondary winding includes a first output terminal 461, a second output terminal 462. The first input terminal 451, the second input terminal 452, the third input terminal 453 or the fourth input terminal 454, in any combination with the first output terminal 461 or the second output terminal 462, respectively, may connect the corresponding primary coil in the primary winding and the corresponding secondary coil in the secondary winding to the line.

Referring to fig. 11 in combination, when the first input terminal 451 and the first output terminal 461 are connected to the line, the primary winding N1 and the secondary winding M1 are connected to the line, and the composition voltage ratio is 1:1, a first voltage transformation unit 4901.

Referring to fig. 9 again, in this embodiment, the electronic switch is a relay, and the first electronic switch 481 includes a first common terminal a1, a first normally-closed terminal a2, and a first normally-open terminal a3; the second electronic switch 482 includes a second common terminal b1, a second normally-closed terminal b2, and a second normally-open terminal b3; the third electronic switch 483 includes a third common terminal c1, a third normally-closed terminal c2, and a third normally-open terminal c3; the fifth electronic switch 485 includes a fifth common terminal e1, a fifth normally-closed terminal e2, and a fifth normally-open terminal e3.

The first normally-closed end a2 is electrically connected with the third common end c1, and the first normally-open end a3 is electrically connected with the fifth common end e 1; the third normally-closed end c2 is electrically connected to the first input terminal 451, and the third normally-closed end c3 is electrically connected to the second input terminal 452; the fifth normally-closed end e2 is electrically connected to the third input terminal 453, and the fifth normally-closed end e3 is electrically connected to the fourth input terminal 454; the second common terminal b1 is electrically connected to the voltage output terminal 500, the second normally-closed terminal b2 is electrically connected to the first output terminal 461, and the second normally-open terminal b3 is electrically connected to the second output terminal 462.

When the first electronic switch 481 gates the first normally-closed terminal a2, the second electronic switch 482 gates the second normally-closed terminal b2, and the third electronic switch 483 gates the third normally-closed terminal c2, the primary winding N1 and the secondary winding M1 are connected to the circuit.

When the first electronic switch 481 gates the first normally-closed terminal a2, the second electronic switch 482 gates the second normally-closed terminal b3, and the third electronic switch 483 gates the third normally-closed terminal c2, the primary winding N1 and the secondary winding M2 are connected to the circuit.

When the first electronic switch 481 gates the first normally-closed terminal a2, the second electronic switch 482 gates the second normally-closed terminal b2, and the third electronic switch 483 gates the third normally-open terminal c3, the primary winding N2 and the secondary winding M1 are connected to the circuit.

When the first electronic switch 481 gates the first normally-open end a3, the second electronic switch 482 gates the second normally-closed end b2, the fifth electronic switch 485 gates the fifth normally-closed end e2, and the primary winding N3 and the secondary winding M1 are connected into the line.

When the first electronic switch 481 gates the first open end a3, the second electronic switch 482 gates the second open end b3, the fifth electronic switch 485 gates the fifth open end e2, and the primary winding N3 and the secondary winding M2 are connected into the line.

When the first electronic switch 481 gates the first normally-open end a3, the second electronic switch 482 gates the second normally-closed end b2, and the fifth electronic switch 485 gates the fifth normally-open end e3, the primary winding N4 and the secondary winding M1 are connected into the line.

It can be appreciated that in the above embodiment, the voltage adjusting device of the UPS power source may add or subtract corresponding electronic switches or voltage transformation units according to practical applications to adjust the required preset output voltage.

In the above embodiment, the voltage adjusting device of the UPS power source converts two sets of different power grid system voltages into the preset voltage required by the device, so as to solve the problem that the existing UPS power source can only receive one set of power grid system voltage. The voltage regulating device of the UPS greatly improves the utilization rate of the UPS in actual life, and the same UPS can be used in areas with only 220V power grid systems, 110V power grid systems, 220V/110V power grid systems and even more power grid systems. The application range of the UPS is enlarged, so that the UPS has more practical application scenes. The complex manual working procedures and a large number of hardware equipment replacement during the switching of the power system are reduced.

Fig. 13 is a schematic diagram of a UPS power source according to a first embodiment of the invention. UPS power source 600 includes a voltage regulation device (not shown) and a housing 610. The voltage regulating device is mounted in the housing 610. The specific structure of the voltage adjusting device may be any one of the voltage adjusting devices in the above embodiments, which is not described herein.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit or scope of the invention. Thus, if and when such modifications and variations of the present invention fall within the scope of the claims and the equivalents thereof, the present invention is intended to encompass such modifications and variations.

The above list of preferred embodiments of the present invention is, of course, not intended to limit the scope of the invention, and equivalent variations according to the claims of the present invention are therefore included in the scope of the present invention.

Claims

1. A voltage regulation device for a UPS power source, comprising:

the voltage input end is used for receiving input voltage, the input voltage comprises a first input voltage and a second input voltage, the first input voltage is different from the second input voltage, the first input voltage is provided by one power grid system and is 220V, and the second input voltage is provided by another different power grid system and is 110V;

the control unit is electrically connected with the detection unit and is used for outputting a regulating level according to the input voltage and a preset output voltage, the preset output voltage comprises a first output voltage and a second output voltage, the first output voltage is different from the second output voltage, the first output voltage is 220V, and the second output voltage is 110V;

The regulating unit comprises a plurality of electronic switches and a transformer, the transformer comprises a plurality of transformation units which are selectively and electrically connected with the plurality of electronic switches, the plurality of electronic switches are respectively and electrically connected with the control unit and the voltage input end, each electronic switch enters a normally closed state or a normally open state according to the regulating level, the transformation units which are gated by the plurality of electronic switches in the normally closed state and the normally open state are different, the input voltage is regulated to be the preset output voltage under the action of the transformation units which are gated by the plurality of electronic switches, the transformation units can form a first group of transformation units and a second group of transformation units, and when the input voltage is the first input voltage, the gated transformation units are selected from the first group of transformation units; when the input voltage is the second input voltage, the gated voltage transformation unit is selected from the second group of voltage transformation units; and

and the voltage output end is used for outputting the preset output voltage.

2. The voltage regulation device of claim 1, wherein the plurality of electronic switches comprises a first set of electronic switches electrically connected to the control unit, the voltage input, and the voltage output, respectively, the first set of electronic switches further selectively electrically connected to one of the first set of voltage transforming units and the second set of voltage transforming units, wherein:

When the input voltage is the first input voltage, the first group of electronic switches are electrically connected with the first group of transformation units;

when the input voltage is the second input voltage, the first group of electronic switches are electrically connected with the second group of transformation units.

3. The voltage regulation device of the UPS power supply of claim 2, wherein the first set of voltage transforming units includes a first subset of voltage transforming units and a second subset of voltage transforming units, the second set of voltage transforming units includes a third subset of voltage transforming units and a fourth subset of voltage transforming units,

when the first group of voltage transformation units are selected and the preset output voltage is the first output voltage, the gated voltage transformation units are selected from the first subgroup of voltage transformation units;

when the first group of voltage transformation units are selected and the preset output voltage is the second output voltage, the gated voltage transformation units are selected from the second subgroup of voltage transformation units;

when the second group of voltage transformation units are selected and the preset output voltage is the second output voltage, the gated voltage transformation units are selected from the third subgroup of voltage transformation units;

The gated transformer unit is selected from the fourth subset of transformer units when selected from the second set of transformer units and the preset output voltage is the first output voltage.

4. A voltage regulation device for a UPS power source as claimed in claim 3, wherein the first set of electronic switches comprises a first electronic switch electrically connected to the control unit and the voltage input and a second electronic switch electrically connected to the control unit and the voltage output, the first electronic switch and the second electronic switch further being selectively electrically connected to one of the first sub-set of voltage transformation units, the second sub-set of voltage transformation units, the third sub-set of voltage transformation units and the fourth sub-set of voltage transformation units, wherein:

when the first electronic switch is in a normally closed state, the second electronic switch is in a normally closed state and is electrically connected with the first subgroup of transformation units;

when the first electronic switch is in a normally closed state, the second electronic switch is in a normally open state and is electrically connected with the second subgroup transformation unit;

when the first electronic switch is in a normally open state, the second electronic switch is in a normally open state and is electrically connected with the third subgroup voltage transformation unit;

And when the first electronic switch is in a normally open state, the second electronic switch is in a normally closed state and is electrically connected with the fourth subgroup transformation unit.

5. A voltage regulator of a UPS power source according to any one of claims 1 to 4, wherein the voltage input is connected to the voltage output by a line, the voltage regulator comprises a primary winding and a secondary winding, the primary winding comprises a first input terminal, the second input terminal, the secondary winding comprises a first output terminal, a second output terminal, one of the first and second input terminals and one of the first and second output terminals are connected to the line in any combination to form a plurality of the transformer units.

6. The voltage regulator of the UPS power supply of claim 5 wherein the first subset of voltage transforming units includes a first voltage transforming unit, the second subset of voltage transforming units includes a second voltage transforming unit, the third subset of voltage transforming units includes a third voltage transforming unit, and the fourth subset of voltage transforming units includes a fourth voltage transforming unit, wherein the first input terminal and the first output terminal are connected to the line to form the first voltage transforming unit; the first input terminal and the second output terminal are connected into the circuit to form the second transformation unit; the second input terminal and the second output terminal are connected into the circuit to form the third transformation unit; the second input terminal and the first output terminal are connected into the circuit to form the fourth transformation unit, wherein the voltage ratio of the first transformation unit is 1:1, and the voltage ratio of the second transformation unit is 2:1, wherein the voltage ratio of the third transformation unit is 1:1, and the voltage ratio of the fourth transformation unit is 1:2, the number of turns of the primary coil of the primary winding corresponding to the first input terminal and the second input terminal is sequentially reduced; the number of turns of the secondary coil of the secondary winding corresponding to the first output terminal and the second output terminal is reduced in sequence.

7. The voltage regulator of the UPS power supply of claim 6 wherein the voltage regulator of the UPS power supply includes one or more of a first mode, a second mode, and a third mode, at least one of the transformer units of each subset corresponding to the first mode, the second mode, and the third mode, the primary winding further includes a third input terminal, a fourth input terminal, and the secondary winding further includes the third output terminal, a fourth output terminal; when the first, second, third or fourth input terminals are respectively and electrically connected with the voltage input terminal, the number of turns of the primary coil of the primary winding connected to the circuit is sequentially reduced; when the first, second, third or fourth output terminals are respectively and electrically connected with the power supply output end, the number of turns of the secondary winding, which is connected into the secondary coil in the circuit, is sequentially reduced; any combination of one of the first, second, third or fourth input terminals and one of the first, second, third or fourth output terminals into the line may constitute a plurality of the transforming units.

8. The voltage regulation device of claim 7, wherein the plurality of electronic switches further comprises a second set of electronic switches, the second set of electronic switches comprising a third electronic switch, a fourth electronic switch, a fifth electronic switch, and a sixth electronic switch,

the first electronic switch is selectively and electrically connected with the third electronic switch or the fifth electronic switch;

the second electronic switch is selectively and electrically connected with the fourth electronic switch or the sixth electronic switch;

the third electronic switch is electrically connected with the control unit and is selectively and electrically connected with the first input terminal and the second input terminal;

the fourth electronic switch is electrically connected with the control unit and is selectively and electrically connected with the first output terminal and the second output terminal;

the fifth electronic switch is electrically connected with the control unit and is selectively and electrically connected with the third input terminal and the fourth input terminal;

the sixth electronic switch is electrically connected with the control unit and is selectively and electrically connected with the third output terminal and the fourth output terminal;

different combinations of the normally open state or the normally closed state of the first, second, third, fourth, fifth and sixth electronic switches connect the first, second, third or fourth input terminal and the first, second, third or fourth output terminal, respectively, to the line.

9. A UPS power source, comprising: the voltage regulating device and the housing according to any one of claims 1 to 8, wherein the voltage regulating device is mounted in the housing.