CN201449568U

CN201449568U - Alternating current voltage-adjusting device

Info

Publication number: CN201449568U
Application number: CN2009200557787U
Authority: CN
Inventors: 马光
Original assignee: Huizhou Hengjin Energy Saving Technology Co ltd
Current assignee: Huizhou Hengjin Energy Saving Technology Co ltd
Priority date: 2009-04-25
Filing date: 2009-04-25
Publication date: 2010-05-05
Anticipated expiration: 2019-04-25

Abstract

The utility model relates to an alternating current voltage-adjusting device applied in a large-power energy saver. The device comprises a main coil N2 wound on a first iron core and auxiliary iron cores N3, N4 and N5 that are provided with taps and wound on a second iron core simultaneously; two ends of the main coil N2 are connected with the input end and the output end of an alternating current power supply and the auxiliary coils N3, N4 and N5 are connected in series between the input end of the alternating current power supply and a zero line; in addition, the device also comprises a coil N1, a first end of which is connected with the zero line of the alternating current power supply and a second end of which is a movable end controlled by a control module of the energy saver to realize connection with all taps of the auxiliary coils N3, N4 and N5; and the second end of the coil N1 is also connected with the zero line of the alternating current power supply through a high-voltage absorption module. On the basis of voltage-adjusting structure of an adjustable self-coupling transformer, the device adopts the three measures of separately winding the main coil and the auxiliary coils, increasing a new winding and adding a mutual inductance high voltage absorption device in a new winding loop, thus basically inhibiting the harm of high voltage and mutual inductance and greatly enhancing the reliability of electricity-saving equipment.

Description

A kind of ac voltage regulator

Technical field

The utility model relates to high power AC voltage-regulating technique in the economize on electricity product, is meant that specifically a kind of isolated many grades are not had the cutout ac voltage regulator.

Background technology

The AC low-tension electricity-saving appliance mainly adopts many grades of pressure regulation step-down modes, the maximum reducing amplitude is generally about 20% of electric power incoming line, i.e. 220 ± 20%=0～44V, this 44V voltage need be divided into many grades of adjustable outputs (for example will export 10V, 20V, 30V, 44V respectively).

Realize that many grades of pressure regulation generally have four kinds of schemes: (1) common pressure regulator pressure regulation: shown in accompanying drawing 1a, this mode can realize not having cutout gear shift pressure regulation, but only be applicable to miniwatt (50KW is following) output pressure regulation situation, be difficult to realize the high power AC pressure regulation, and the pressure regulator volume is big, the cost height is difficult for large tracts of land and promotes.(2) tapped autotransformer pressure regulation: shown in accompanying drawing 1b, this mode cost is low, it is less that volume of transformer can be done, and decrease little certainly, electricity saving performance is good, can produce a cutout when shortcoming is the pressure regulation gear shift, makes power supply wave shape discontinuous, though can realize high-power pressure regulation, generally need the power failure gear shift.(3) self coupling zeroing transformer pressure regulation: shown in accompanying drawing 1c, this mode can realize the gear shift pressure regulation that continues to flow, and it is little to have a volume, cost is low, from decreasing little characteristics, shortcoming can produce very high mutual voltage when being the voltage gearshift, damages transformer and Gear-shift switch in the electricity-saving appliance easily.

At present, the third mode is used comparatively extensive, but its shortcoming also can't overcome always.If the power of electricity-saving appliance little (less than 50KW), the mutual inductance high pressure that produces during for the pressure regulation gear shift, main-transformer in the electricity-saving appliance and Gear-shift switch can also bear, if during electricity-saving appliance power big (greater than 50KW), the mutual inductance high pressure of generation will have a strong impact on the safety of transformer and Gear-shift switch self.

The utility model content

Technical problem to be solved in the utility model is at high power AC low pressure electricity-saving appliance, and a kind of realize not having many grades of pressure regulation of cutout and stable performance, safe and reliable regulator are provided.

For addressing the above problem, the technical scheme that the utility model is taked is:

A kind of ac voltage regulator comprises the main coil N2 that is wound on first iron core and is wound in ancillary coil N3, N4, the N5 that has tap on second iron core simultaneously; As input, the output terminal of AC power, ancillary coil N3, N4, N5 are series between ac power input end and the zero line respectively at described main coil N2 two ends, in these regulator apply to Section electric equipment products; Other comprises coil N1, and described N1 first end connects the AC power zero line, and second end is to be subjected to the control of electricity-saving appliance control module to realize the movable end that is connected with ancillary coil N3, N4, each tap of N5.

Further scheme is: described coil N1 second end absorbs module by a high pressure and is connected with the AC power zero line.

A kind of concrete scheme is: described high pressure absorbs module and adopts a resistance, described resistance one end connecting coil N1 second end, and an end is controlled by the electricity-saving appliance master controller.

Ac voltage regulator described in the utility model is applied in the high-power electricity-saving appliance product, and envoy's electric equipment products realize that many grades are not had the cutout pressure regulation; Taking main coil and ancillary coil to isolate coiling on the basis of the former formula single-circuit transformer voltage regulating mode that returns to zero, increasing by a new winding and the absorption plant three measures of adding mutual inductance high pressure in new winding loop, basically reduced the harm that the high pressure mutual inductance causes, make the operation that energy-saving device can safety, strengthened the reliability of equipment greatly.

Description of drawings

Fig. 1 is an existing voltage regulating mode principle schematic in the described electricity-saving appliance; Wherein

Fig. 1 a is common pressure regulator voltage regulating mode schematic diagram;

Fig. 1 b is a single-circuit transformer voltage regulating mode schematic diagram;

Fig. 1 c is from lotus root zeroing transformer voltage regulating mode schematic diagram;

Fig. 2 is an ac voltage regulator principle schematic described in the utility model.

Embodiment

The utility model is described in further detail below in conjunction with drawings and Examples.

As Fig. 2, described ac voltage regulator comprises the main coil N2 that is wound on first iron core, is wound in ancillary coil N3, N4, N5 and the coil N1 that has tap on second iron core simultaneously; Described main coil N2 two ends connect input, the output terminal of AC power respectively, and ancillary coil N3, N4, N5 are series between ac power input end and the zero line; And coil N1 first end connects the AC power zero line, and second end is to be subjected to the control of electricity-saving appliance control module to realize the movable end that is connected with ancillary coil N3, N4, each tap of N5, and simultaneously, coil N1 second end also absorbs module by a high pressure and is connected with the AC power zero line.

During use, coil N1 movable end can connect the tap of three ancillary coils respectively, and then alternating current input power supplying coils N2, N1 or N2, N3, N1 form the loop, and then main coil N2 can sense different amplitude voltages and export to plant equipment, realizes the pressure regulation purpose.The movable end of coil N1 is controlled by the master controller of electricity-saving appliance, and the working current or the voltage condition of the plant equipment that the master controller of electricity-saving appliance is returned according to sampling are determined how gear shift pressure regulation.

Because above-mentioned connected mode in the moment of pressure regulation gear shift, can produce the mutual inductance high pressure, therefore need to add the absorption plant of high pressure mutual inductance.The basic reason that the high pressure mutual inductance produces is gear shift moment, and coil N1 is in vacant state, and we make it and the other end of N1 produce a loop and can solve the mutual inductance problem as long as add a resistance R at coil N1 end so.

During concrete enforcement, in order to insert resistance R the influence of whole electricity-saving appliance system is reduced to minimum, therefore makes this resistance one end tieline circle N1 movable end, the other end is controlled by the master controller of electricity-saving appliance, resistance can be inserted when needed, and need not be timely disconnection.

The above only is the preferable embodiment of the utility model, it should be noted that, not breaking away under the utility model design prerequisite its any subtle change of doing and being equal to replacement, all should belong to protection domain of the present utility model.

Claims

1. ac voltage regulator, in the apply to Section electric equipment products, comprise the main coil N2 that is wound on first iron core and be wound in ancillary coil N3, N4, the N5 that has tap on second iron core simultaneously, it is characterized in that: described main coil N2 two ends are respectively as input, the output terminal of AC power, and ancillary coil N3, N4, N5 are series between ac power input end and the zero line.

2. ac voltage regulator according to claim 1, it is characterized in that: further comprise coil N1, N1 first end connects the AC power zero line, and second end is to be subjected to the control of electricity-saving appliance control module to realize the movable end that is connected with ancillary coil N3, N4, each tap of N5.

3. ac voltage regulator according to claim 2 is characterized in that: described coil N1 second end absorbs module by a high pressure and is connected with the AC power zero line.

4. ac voltage regulator according to claim 3 is characterized in that: described high pressure absorbs module and adopts a resistance, described resistance one end connecting coil N1 second end, and an end is controlled by the electricity-saving appliance master controller.