CN206353474U

CN206353474U - A kind of 18 pulse wave transformers for Medical Devices

Info

Publication number: CN206353474U
Application number: CN201621350208.7U
Authority: CN
Inventors: 张水生
Original assignee: Dongguan Xingfa Electronics Co Ltd
Current assignee: Dongguan Xingfa Electronics Co Ltd
Priority date: 2016-12-09
Filing date: 2016-12-09
Publication date: 2017-07-25
Anticipated expiration: 2026-12-09

Abstract

A kind of 18 pulse wave transformers for Medical Devices, it is related to transformer technology field, its structure includes loop A, coil B and coil C, loop A, coil B and coil C include armature winding, secondary top main winding, secondary top Phase shift winding, secondary middle part winding, secondary stage lower main winding and secondary stage lower Phase shift winding, by the way that the secondary coil of transformer is carried out into 20 ° of processing of phase shift, in Same Efficieney, on the premise of equal volume, it is modified to the different multiple-channel output in phase angle, by back-end circuit conflux into one it is more steady, more clean, more environmentally friendly voltage, because adding Phase shift winding, so that area of dissipation increase, transformer itself temperature rise can decline 5% to 8%, for the IGBT (insulated gate bipolar transistor) in back-end circuit, diode, electric capacity and the overall temperature rise of resistance and service life all have greatly improved, also the stability and reliability of Medical Devices complete machine are improved.

Description

A kind of 18 pulse wave transformers for Medical Devices

Technical field

The utility model is related to transformer technology field, more particularly to a kind of 18 pulse wave transformations for Medical Devices Device.

Background technology

The transformer for Medical Devices uses safety isolating transformer at this stage, and safety isolating transformer passes through to iron core （Magnetic circuit）, it is primary（Primary side）Coil, secondary（Secondary）Coil carries out safe insulation, and the principle for giving birth to electricity by electric magnetisation, magnetic reaches The effect for the conveying voltage x current that line voltage is isolated with the use voltage security of client, also has lightning protection, filters out triple-frequency harmonics （By changing connecting mode such as:Dyn11 connecting group grades）With the effect for reducing power network interference signal.It is provided to electrical equipment Pure supply voltage.But Medical power needs at this stage, and output is more steady, it is lower to filter out multiple harmonic, noise and loss Lower isolating transformer, common safety isolating transformer can not be met.

Utility model content

The purpose of this utility model is to avoid weak point of the prior art and provides a kind of for Medical Devices 18 pulse wave transformers, the exportable stable voltage of 18 pulse wave transformers for being used for Medical Devices suppresses output end high order Line loss that harmonic wave is produced in rearmounted circuit and element over-temperature phenomenon, reduction making an uproar for producing because of interference of the harmonic wave to magnetic element Sound.

The purpose of this utility model is achieved through the following technical solutions：

A kind of 18 pulse wave transformers for Medical Devices, including loop A, coil B and coil C are provided, its feature exists In：

The loop A, coil B and coil C include armature winding, secondary top main winding, secondary top Phase shift winding, Secondary middle part winding, secondary stage lower main winding and secondary stage lower Phase shift winding,

The secondary top Phase shift winding of the loop A is wound on the secondary top main winding of the coil C,

The secondary top Phase shift winding of the coil B is wound on the secondary top main winding of the loop A,

The secondary top Phase shift winding of the coil C is wound on the secondary top main winding of the coil B,

Winding and coil C secondary middle part winding are used in the middle part of the secondary middle part winding of the loop A, the secondary of coil B Star connection,

The secondary stage lower Phase shift winding of the loop A is wound on the secondary stage lower main winding of the coil B,

The secondary stage lower Phase shift winding of the coil B is wound on the secondary stage lower main winding of the coil C,

The secondary stage lower Phase shift winding of the coil C is wound on the secondary stage lower main winding of the loop A,

Turn ratio is：Phase shift winding：Main winding=1.12：2.10, wherein, Phase shift winding includes secondary top Phase shift winding With secondary stage lower Phase shift winding, main winding includes secondary top main winding and secondary stage lower main winding.

Wherein, the secondary top main winding and secondary stage lower main winding are 75 circles, the secondary top Phase shift winding It is 40 circles with secondary stage lower Phase shift winding.

Wherein, the secondary middle part winding is 100 circles.

Wherein, the armature winding is delta connection.

The beneficial effects of the utility model：

A kind of 18 pulse wave transformers for Medical Devices of the present utility model, by the way that the secondary coil of transformer is entered 20 ° of processing of row phase shift, on the premise of Same Efficieney, equal volume, are modified to the different multiple-channel output in phase angle, by rearmounted Circuit confluxes into one and more steadily, more cleaned（Reduce the ratio of output harmonic wave）, it is more environmentally friendly（The reduction of harmonic wave, it is ensured that after Element is put to run in the environment of low temperature and low noise）Voltage.Because adding Phase shift winding so that area of dissipation increase, become Depressor itself temperature rise can decline 5% to 8%, for IGBT (insulated gate bipolar transistor), diode, the electric capacity in back-end circuit Overall temperature rise and service life with resistance all have greatly improved, and also improve the stability and reliability of Medical Devices complete machine.

Brief description of the drawings

Utility model is described further using accompanying drawing, but the embodiment in accompanying drawing is not constituted to of the present utility model What is limited, on the premise of not paying creative work, can also be according to the following drawings for one of ordinary skill in the art Obtain other accompanying drawings.

Fig. 1 is a kind of partial structurtes signal of 18 pulse wave transformers for Medical Devices of the present utility model Figure.

Fig. 2 is that a kind of cross-section structure of the loop A of 18 pulse wave transformers for Medical Devices of the present utility model shows It is intended to.

Fig. 3 is primary wiring schematic diagram and the shifting of a kind of 18 pulse wave transformers for Medical Devices of the present utility model The wiring schematic diagram of+20 ° of phase.

Fig. 4 is a kind of armature winding of the loop A of 18 pulse wave transformers for Medical Devices of the present utility model Schematic diagram.

Fig. 5 is that a kind of phase angle of 18 pulse wave transformers for Medical Devices of the present utility model is+20 ° of wiring Schematic diagram.

Fig. 6 is that a kind of phase angle of 18 pulse wave transformers for Medical Devices of the present utility model shows for 0 ° of wiring It is intended to.

Fig. 7 is that a kind of phase angle of 18 pulse wave transformers for Medical Devices of the present utility model is -20 ° of wiring Schematic diagram.

Include in figure：

Armature winding 1；

Secondary top main winding 2；

Secondary top Phase shift winding 3；

Secondary middle part winding 4；

Secondary stage lower main winding 5；

Secondary stage lower Phase shift winding 6.

Embodiment

The utility model is further described with the following Examples.

A kind of 18 pulse wave transformers for Medical Devices of the present embodiment, as shown in figure 1, including loop A, coil B With coil C.

As shown in Figures 2 and 3, the loop A, coil B and coil C include armature winding 1, secondary top main winding 2, Secondary top Phase shift winding 3, secondary middle part winding 4, secondary stage lower main winding 5 and secondary stage lower Phase shift winding 6.

When phase angle is+20 °, the secondary of the transformer is as shown in Figure 5：

The secondary top Phase shift winding of the loop A（a1-z1）It is wound in the secondary top main winding of the coil C（w1- c1）On, the secondary top Phase shift winding of the coil B（b1-x1）It is wound in the secondary top main winding of the loop A（a1- u1）On, the secondary top Phase shift winding of the coil C（c1-y1）It is wound in the secondary top main winding of the coil B（b1- v1）On.

When phase angle is 0 °, the secondary of the transformer is as shown in Figure 6：

Winding and coil C secondary middle part winding are used in the middle part of the secondary middle part winding of the loop A, the secondary of coil B Star connection.

When phase angle is -20 °, the secondary of the transformer is as shown in Figure 7：

The secondary stage lower Phase shift winding of the loop A（a3-y3）It is wound in the secondary stage lower main winding (b3- of the coil B v3）On, the secondary stage lower Phase shift winding of the coil B（b3-z3）It is wound in the secondary stage lower main winding of the coil C（c3- w3）On, the secondary stage lower Phase shift winding of the coil C（c3-x3）It is wound in the secondary stage lower main winding of the loop A（a3- u3）On.

Turn ratio is：Phase shift winding：Main winding=1.12：2.10, wherein, Phase shift winding includes secondary top Phase shift winding 3 With secondary stage lower Phase shift winding 6, main winding includes secondary top main winding 2 and secondary stage lower main winding 5.

Wherein, in the present embodiment, with reference to the size of magnetic core, secondary the top main winding and secondary stage lower main winding are equal For 75 circles, secondary the top Phase shift winding and secondary stage lower Phase shift winding are 40 circles.

Wherein, the secondary middle part winding is 100 circles.

Wherein, as shown in figure 4, the armature winding is delta connection.

A kind of 18 pulse wave transformers for Medical Devices of the present embodiment, by the way that the secondary coil of transformer is carried out 20 ° of processing of phase shift, on the premise of Same Efficieney, equal volume, are modified to the different multiple-channel output in phase angle, by rearmounted electricity Conflux into one and more steadily, more clean in road（Reduce the ratio of output harmonic wave）, it is more environmentally friendly（The reduction of harmonic wave, it is ensured that rearmounted Element is run in the environment of low temperature and low noise）Voltage.Because adding Phase shift winding so that area of dissipation increase, transformation Device itself temperature rise can decline 5% to 8%, for the IGBT (insulated gate bipolar transistor) in back-end circuit, diode, electric capacity and The overall temperature rise of resistance and service life all have greatly improved, and also improve the stability and reliability of Medical Devices complete machine, In longtime running, complete machine power consumption is not only saved, the service life of equipment component is also extended, to the complete machine of Medical Devices Life and reliability is even more a lifting.

Finally it should be noted that above example is only illustrating the technical solution of the utility model, rather than to this reality With the limitation of novel protected scope, although being explained with reference to preferred embodiment to the utility model, this area it is general Lead to it will be appreciated by the skilled person that can be modified to the technical solution of the utility model or equivalent substitution, without departing from this The spirit and scope of utility model technical scheme.

Claims

1. a kind of 18 pulse wave transformers for Medical Devices, including loop A, coil B and coil C, it is characterised in that：

Winding and coil C secondary middle part winding use star in the middle part of the secondary middle part winding of the loop A, the secondary of coil B Connection,

Turn ratio is：Phase shift winding：Main winding=1.12：2.10, wherein, Phase shift winding includes secondary top Phase shift winding and secondary Level bottom Phase shift winding, main winding includes secondary top main winding and secondary stage lower main winding.

2. a kind of 18 pulse wave transformers for Medical Devices as claimed in claim 1, it is characterised in that：In the secondary Portion's main winding and secondary stage lower main winding are 75 circles, and secondary the top Phase shift winding and secondary stage lower Phase shift winding are 40 Circle.

3. a kind of 18 pulse wave transformers for Medical Devices as claimed in claim 2, it is characterised in that：In the secondary Portion's winding is 100 circles.

4. a kind of 18 pulse wave transformers for Medical Devices as claimed in claim 1, it is characterised in that：It is described it is primary around Group is delta connection.