CN2344853Y

CN2344853Y - Split-phase transformer

Info

Publication number: CN2344853Y
Application number: CN 97247445
Authority: CN
Inventors: 张汉斌
Original assignee: Individual
Current assignee: Individual
Priority date: 1997-10-07
Filing date: 1997-10-07
Publication date: 1999-10-20
Anticipated expiration: 2007-10-07

Abstract

The utility model relates to a transformer, which is particularly suitable for the use of a pump with a single phase motor. The utility model comprises an iron core and windings, the iron core is in a Chinese character ' ri ' shape, the primary pole and the secondary pole of a main winding are wound around an iron column in the middle of the iron core, the secondary pole of the main winding form one single phase output end, the primary pole and the secondary pole of a secondary winding are wound around iron columns arranged at both sides of the iron core, two primary poles of the secondary winding are connected in series together and are connected with a capacitor, then the capacitor is connected with an input end, and two secondary poles of the secondary winding are connected in series together to form the other single phase output end. The two output ends of the utility model are connected with the primary and the secondary windings of the motor of the pump with a single phase motor, and the transformer and the pump can be separated. The utility model not only can be arranged in a pump body in order to simplify the structure of the pump, but also the electrical leakage problem caused by the bad seal can be avoided. The utility model has the advantages of good starting performance and long service life.

Description

Phase separation transformer

The utility model relates to a kind of transformer, especially is fit to have the pump application of monophase machine.

At present, the pump of monophase machine such as immersible pump, the main and sub-coil of its motor directly links to each other with the input power supply by electric capacity, starts relatively poorly, and requires its water-tight good, for the strictness sealing, has increased sealing device, the pump structure so the complexity that becomes.Water pump uses for a long time under water, though sealing devices such as two seals and oil sealing are arranged, still has the water slow-motion to go into motor internal, and consequently electric leakage, generation unsafe factor influence operate as normal.

The purpose of this utility model is to overcome above-mentioned deficiency, and a kind of phase separation transformer is provided, and is particularly suitable for the pump of monophase machine, makes the pump safe operation, and startability is good, and the life-span is long.

The utility model can be realized like this: phase separation transformer, comprise iron core and coil, iron core is " day " font, the primary and secondary of main coil is on the middle iron prop of iron core, the elementary input that connects of main coil, the single-phase output of secondary formation, the primary and secondary of secondary coil is on the both sides iron prop of iron core, two elementary series connection of secondary coil also connect input with capacitances in series, and twice levels series connection of secondary coil constitute another single-phase outputs.The single-phase output of the secondary formation of main coil can be connected on the main coil of monophase machine, and the single-phase output of another of the secondary formation of secondary coil is connected on the secondary coil of monophase machine.The utility model can become the 220V single-phase voltage motor that resupplies pump behind the low electricity to be used.Transformer can separate with pump.When the pump Shi Buhui that pulls the plug produces because of faults such as unsafe factor due to the sealing problem or leakages, also can save the device of the original strict sealing of pump, pump structure is oversimplified, easy to maintenance.The utility model uses on pump, can also make pump startup good, and the waveform of motor secondary coil is than the fashion that directly links to each other with electric capacity, and energy consumption is little, starts rapidly.

Fig. 1 is the utility model structural representation.

Further specify the utility model below in conjunction with accompanying drawing:

Transformer core (1) and coil (2) constitute, iron core (1) is " day " font of being made up of F type silicon steel sheet, elementary (21) of main coil and secondary (22) on the middle iron prop of iron core (11), elementary (21) of main coil connect input, secondary (22) constitute single-phase output (51), elementary (31) of secondary coil and secondary (32) on the both sides iron prop of iron core (12), the series connection of two elementary (31) of secondary coil and with electric capacity (4) series connection input, twice levels (32) series connection of secondary coil constitutes another single-phase output (52).Single-phase output (51) can link to each other with the motor main coil of pump, another single-phase output (52) can link to each other with the motor secondary coil of pump, transformer of the present utility model can be independent of pump, separate with pump, needn't be installed on by the motor internal of pump, when problem due to poorly sealed takes place the pump Shi Buhui that pulls the plug, pump structure is simplified greatly, keeps in repair also very convenient.

Claims

1, phase separation transformer, comprise iron core and coil, iron core is " day " font, the primary and secondary that it is characterized in that main coil is on the middle iron prop of iron core, the elementary input that connects of main coil, the single-phase output of secondary formation, the primary and secondary of secondary coil is on the both sides iron prop of iron core, two elementary series connection of secondary coil also connect input with capacitances in series, and twice levels series connection of secondary coil constitute another single-phase outputs.