CN204632550U - A kind of three-phase five-limb wideband contravariant transformer - Google Patents
A kind of three-phase five-limb wideband contravariant transformer Download PDFInfo
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- CN204632550U CN204632550U CN201520361959.8U CN201520361959U CN204632550U CN 204632550 U CN204632550 U CN 204632550U CN 201520361959 U CN201520361959 U CN 201520361959U CN 204632550 U CN204632550 U CN 204632550U
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Abstract
The utility model discloses a kind of three-phase five-limb wideband contravariant transformer, the line bag relating to transformer technology field, comprise transformer base, be installed on the three-phase five-limb iron core in transformer base and be around on three-phase five-limb iron core; It is characterized in that: described line handbag draws together six elementary line bags and six secondary wire bags; The magnetic flux leakage block regulating leakage inductance is provided with between adjacent two line bags; Fixed sandwich is provided with between described magnetic flux leakage block and line bag; Be bonded as one by epoxy glue between described magnetic flux leakage block and fixed sandwich; Described three-phase five-limb iron core comprises upper yoke and lower yoke two parts; Wherein: described upper yoke is made up of shaping iron core; Described lower yoke is superposed by iron core and assembles; The contact-making surface of described upper yoke and lower yoke is welded as a whole.By adopting technique scheme, the utility model can adjust the frequency of contravariant transformer, leakage inductance as required.
Description
Technical field
The utility model relates to transformer technology field, particularly relates to a kind of three-phase five-limb wideband contravariant transformer.
Background technology
As everyone knows, contravariant transformer is the transformer for doing current/voltage conversion in EPS inversion emergency power supply.Inverter is the transformer of a kind of DC to AC, and it is a kind of process of voltage inversion in fact with converter.Transducer the alternating voltage of utility grid is changed into stable 12V direct current to export, and inverter is the High Level AC Voltage 12V direct voltage that Adapter exports being changed into high frequency; Two parts equally all have employed pulse-width modulation (PWM) technology using often at present.Large bit information is said, its core is all a PWM integrated manipulator, and that Adapter is UC3842, and inverter then adopts TL5001 chip.Operating voltage range 3.6 ~ the 40V of TL5001, its inside is provided with an error amplifier, adjuster, oscillator, the PWM generator having dead zone function, low-voltage variation loop and a short-circuit protection circuit etc.
At present, tradition contravariant transformer is all generally fixed-type when dispatching from the factory, therefore its operating frequency general, Magnetic leakage characteristics are all fixing, but find in practice, along with the change of work condition environment, people need the contravariant transformer of other frequencies, other leakage inductance characteristics sometimes, so, design and develop a kind of there is wideband, three-phase five-limb wideband contravariant transformer that leakage inductance is adjustable seems it is particularly important.
Utility model content
The technical problems to be solved in the utility model is: provide a kind of and can adjust frequency as required, the three-phase five-limb wideband contravariant transformer of leakage inductance.
The technical scheme that the utility model is taked for the technical problem existed in solution known technology is:
A kind of three-phase five-limb wideband contravariant transformer, the line bag comprising transformer base, be installed on the three-phase five-limb iron core in transformer base and be around on three-phase five-limb iron core; It is characterized in that: described line handbag draws together six elementary line bags and six secondary wire bags; The magnetic flux leakage block regulating leakage inductance is provided with between adjacent two line bags; Fixed sandwich is provided with between described magnetic flux leakage block and line bag; Be bonded as one by epoxy glue between described magnetic flux leakage block and fixed sandwich; Described three-phase five-limb iron core comprises upper yoke and lower yoke two parts; Wherein: described upper yoke is made up of shaping iron core; Described lower yoke is superposed by iron core and assembles; The contact-making surface of described upper yoke and lower yoke is welded as a whole.
Further: the input voltage of each elementary line bag is 260V, and the output voltage of each secondary wire bag is 130V.
The advantage that the utility model has and good effect are: by adopting technique scheme, multiple elementary line bag can carry out connecting or parallel connection by user as required, also can connect to multiple secondary wire bag or parallel connection, and then obtain different frequencies; Meanwhile, user by regulating the thickness of magnetic flux leakage block, and then can also adjust magnetic circuit.
Accompanying drawing explanation
Fig. 1 is front view of the present utility model;
Fig. 2 is the structure chart of the utility model iron core;
Fig. 3 is the schematic diagram of the utility model coiling;
Fig. 4 is the utility model local structural graph, for showing the structure of magnetic flux leakage block;
Fig. 5 is the utility model local structural graph, for showing the position relationship of magnetic flux leakage block and line bag.
Wherein: 1, fixing fastening cushion block; 2, magnetic flux leakage block; 3, line bag; 4, fixed sandwich.
Embodiment
For utility model content of the present utility model, Characteristic can be understood further, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1 to Fig. 5, a kind of three-phase five-limb wideband contravariant transformer, the line bag 3 comprising transformer base, be installed on the three-phase five-limb iron core in transformer base and be around on three-phase five-limb iron core; Refer to Fig. 3, described line bag 3 comprises six elementary line bags and six secondary wire bags; As preferred embodiment, the input voltage of above-mentioned each elementary line bag is 260V, and the output voltage of each secondary wire bag is 130V; So in actual use, user can select multiple line packet connection mode as required; As everyone knows, transformer very important parameter of leakage inductance, therefore in order to realize the adjustment to leakage inductance, the present embodiment is provided with the magnetic flux leakage block 2 regulating leakage inductance between adjacent two line bags 3; Refer to Fig. 4, between described magnetic flux leakage block 2 and line bag 3, be provided with fixed sandwich 4; Wherein, above-mentioned fixed sandwich 4 is epoxy plate preferably, utilizes this material as fixture, not only has and connects fastening advantage, also have the function of antidetonation simultaneously; Be bonded as one by epoxy glue between described magnetic flux leakage block 2 and fixed sandwich 4; Refer to Fig. 2, described three-phase five-limb iron core comprises upper yoke A and lower yoke B two parts; Wherein: described upper yoke A is made up of shaping iron core; Described lower yoke B is superposed by iron core and assembles; Such meeting forms an air gap between upper yoke A and lower yoke B, utilizes argon welding technology to be welded as a whole by the contact-making surface of upper yoke A and lower yoke B subsequently.In order to ensure the steadiness of line bag 3, the gap of this preferred embodiment also online between bag 3 and three-phase five-limb iron core is folded with fixing fastening cushion block 1.
Above embodiment of the present utility model has been described in detail, but described content being only preferred embodiment of the present utility model, can not being considered to for limiting practical range of the present utility model.All equalizations done according to the utility model application range change and improve, and all should still belong within patent covering scope of the present utility model.
Claims (2)
1. a three-phase five-limb wideband contravariant transformer, the line bag comprising transformer base, be installed on the three-phase five-limb iron core in transformer base and be around on three-phase five-limb iron core; It is characterized in that: described line handbag draws together six elementary line bags and six secondary wire bags; The magnetic flux leakage block regulating leakage inductance is provided with between adjacent two line bags; Fixed sandwich is provided with between described magnetic flux leakage block and line bag; Be bonded as one by epoxy glue between described magnetic flux leakage block and fixed sandwich; Described three-phase five-limb iron core comprises upper yoke and lower yoke two parts; Wherein: described upper yoke is made up of shaping iron core; Described lower yoke is superposed by iron core and assembles; The contact-making surface of described upper yoke and lower yoke is welded as a whole.
2. three-phase five-limb wideband contravariant transformer according to claim 1, is characterized in that: the input voltage of each elementary line bag is 260V, and the output voltage of each secondary wire bag is 130V.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520361959.8U CN204632550U (en) | 2015-05-29 | 2015-05-29 | A kind of three-phase five-limb wideband contravariant transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520361959.8U CN204632550U (en) | 2015-05-29 | 2015-05-29 | A kind of three-phase five-limb wideband contravariant transformer |
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| CN204632550U true CN204632550U (en) | 2015-09-09 |
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| CN201520361959.8U Active CN204632550U (en) | 2015-05-29 | 2015-05-29 | A kind of three-phase five-limb wideband contravariant transformer |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106887957A (en) * | 2017-03-20 | 2017-06-23 | 西安交通大学 | A kind of hybrid distribution transformer of Multiple coil magnetic integrated-type |
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2015
- 2015-05-29 CN CN201520361959.8U patent/CN204632550U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106887957A (en) * | 2017-03-20 | 2017-06-23 | 西安交通大学 | A kind of hybrid distribution transformer of Multiple coil magnetic integrated-type |
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