CN206059126U - A kind of low voltage heavy current transformer - Google Patents
A kind of low voltage heavy current transformer Download PDFInfo
- Publication number
- CN206059126U CN206059126U CN201621108220.7U CN201621108220U CN206059126U CN 206059126 U CN206059126 U CN 206059126U CN 201621108220 U CN201621108220 U CN 201621108220U CN 206059126 U CN206059126 U CN 206059126U
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- Prior art keywords
- side winding
- current transformer
- winding
- low voltage
- magnetic core
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Abstract
The utility model discloses a kind of low voltage heavy current transformer, belong to field transformer, strong current transformer includes magnetic core, the winding inside the magnetic core, the winding is coordinated with the magnetic core grafting, the winding includes primary side winding and vice-side winding, the primary side winding is fixed in the magnetic core around mode by former secondary folder with the vice-side winding, the vice-side winding is formed by some secondary copper sheet closed assemblies, is provided with for accommodating the thickness gap of the primary side winding described in multilamellar between secondary copper sheet.Low voltage heavy current transformer disclosed in this utility model, which adopts former secondary to press from both sides around mode so that transformator has the higher degree of coupling, and secondary is screwed connection, easy to process, and the production efficiency of product greatly improved.
Description
Technical field
This utility model is related to field transformer, more particularly to a kind of low voltage heavy current transformer.
Background technology
Low voltage heavy current transformer is a kind of specific form of isolating transformer, is generally divided into single-phase（DDG）Series and three-phase
(SDG) series.More for the number of turn of low voltage heavy current transformer its former limit coiling, Jing is frequently with line cake mode or multi-turn copper
Sheet mode coiling forms parallel-connection structure/cascaded structure, and low voltage heavy current transformer secondary uses multilamellar copper sheet closed assembly, it is ensured that transformation
Device electric current density.Secondary set group goes out foot or using secondary copper sheet direct bending in parallel by copper bar short circuit frequently with multilamellar copper sheet
Go out foot.When generally going out foot using the direct bending parallel connection of secondary copper sheet, Product processing difficulty is big, and secondary copper sheet processing cost
It is high.When going out foot by copper bar short circuit using multilamellar copper sheet, short circuit position welding kesistance is big, as secondary winding current is big, causes
This position heating of product is serious, and efficiency is low.
Utility model content
In order to overcome the defect of prior art, technical problem to be solved in the utility model is to propose that a kind of low pressure is big
Current transformer, which adopts former secondary to press from both sides around mode so that transformator has the higher degree of coupling, and secondary is screwed company
Connect, it is easy to process, the production efficiency of product greatly improved.
It is that, up to this purpose, this utility model is employed the following technical solutions：
A kind of low voltage heavy current transformer that this utility model is provided, including magnetic core, the winding inside the magnetic core,
The winding is coordinated with the magnetic core grafting, and the winding includes primary side winding and vice-side winding, the primary side winding with it is described
Vice-side winding is fixed in the magnetic core around mode by former secondary folder.
In this utility model preferably embodiment, the vice-side winding is formed by some secondary copper sheet closed assemblies, multilamellar
It is provided between the secondary copper sheet for accommodating the thickness gap of the primary side winding.
In this utility model preferably embodiment, the primary side winding is configured to using line cake mode or multi-turn copper
The parallel-connection structure of sheet mode coiling.
In this utility model preferably embodiment, the primary side winding is configured to using line cake mode or multi-turn copper
The cascaded structure of sheet mode coiling.
In this utility model preferably embodiment, low voltage heavy current transformer also includes first kind pin and second
Class pin, the first kind pin are located at the side of the magnetic core, and the Equations of The Second Kind pin is located at the opposite side of the magnetic core.
In this utility model preferably embodiment, multiple secondary copper sheets are locked by lock screw mode and are integrated
And it is fixed.
In this utility model preferably embodiment, copper in the gap between the adjacent secondary copper sheet, is filled with
Block.
The beneficial effects of the utility model are：
The low voltage heavy current transformer that this utility model is provided, its primary side winding are pressed from both sides around side by former secondary with vice-side winding
Formula is fixed in magnetic core, and this setup is conducive to the degree of coupling for improving transformator.Multiple secondary copper sheets in vice-side winding
Locked by lock screw mode and be integrated and fixed, namely be screwed connection, this setup is easy to process, significantly
Improve the production efficiency of product.
Description of the drawings
Fig. 1 is the top view of the low voltage heavy current transformer that this utility model specific embodiment is provided；
Fig. 2 is the front view of the low voltage heavy current transformer that this utility model specific embodiment is provided.
In figure：
1st, magnetic core；2nd, winding；21st, primary side winding；22nd, vice-side winding；221st, secondary copper sheet；211st, thickness gap；41st,
One class pin；42nd, Equations of The Second Kind pin；5th, copper billet.
Specific embodiment
The technical solution of the utility model is further illustrated below in conjunction with the accompanying drawings and by specific embodiment.
As depicted in figs. 1 and 2, a kind of low voltage heavy current transformer for providing in embodiment one, including magnetic core 1 and winding 2,
Winding 2 is located at the inside of magnetic core 1, and winding 2 is coordinated with 1 grafting of magnetic core, and winding 2 includes primary side winding 21 and vice-side winding 22, former
Side winding 21 is adapted with vice-side winding 22, and primary side winding 21 is fixed on magnetic core around mode by former secondary folder with vice-side winding 22
Inside 1, so as to ensure that transformator has the high degree of coupling, and strengthen the electrology characteristic of low voltage heavy current transformer.
In order to ensure that low voltage heavy current transformer has suitable electric current density, further, vice-side winding 22 is by some
221 closed assembly of secondary copper sheet is formed, and thickness gap 211 is provided between multilamellar secondary copper sheet 221, and thickness gap 211 is used to accommodate
Primary side winding 21, the mutually folder of primary side winding 21 and vice-side winding 22 around and cooperate with thickness gap 211, so as to ensure low pressure
Strong current transformer has good stability.
In order to reduce the volume of primary side winding 21 and improve the electrology characteristic of primary side winding 21, it is further preferred that former limit
Winding 21 be configured to using line cake mode coiling parallel-connection structure or be configured to form using multi-turn copper sheet mode coiling
Parallel-connection structure.It is further preferred that primary side winding 21 be configured to using line cake mode coiling cascaded structure or match somebody with somebody
It is set to the cascaded structure using multi-turn copper sheet mode coiling.
The electric connection of low voltage heavy current transformer and peripheral components for convenience, low voltage heavy current transformer also include the
One class pin 41 and Equations of The Second Kind pin 42, first kind pin 41 are located at one end of magnetic core 1, and Equations of The Second Kind pin 42 is located at magnetic core 1
The other end.First kind pin 41, Equations of The Second Kind pin 42 are electrically connected with primary side winding 21, vice-side winding 22.First kind pin
41st, grafting and welding of the 42 very convenient low voltage heavy current transformer of Equations of The Second Kind pin on pcb board, strengthens low-voltage, high-current
The convenience that transformator is electrically connected with peripheral components.
In order to reduce the welding kesistance of vice-side winding 22, further, multiple secondary copper sheets 221 by lock screw lock are
One is simultaneously fixed, rather than is connected by welding manner.Accordingly, with respect to prior art, this connected mode advantageously reduces pair
The welding kesistance of side winding 22.
In order to strengthen the electric property of vice-side winding 22, copper billet in the gap between adjacent secondary copper sheet 221, is filled with
5, the air gap of 5 reasonable adjusting vice-side winding 22 of copper billet, it is ensured that vice-side winding 22 is reliable and stable.
In order to strengthen the fastness that primary side winding 2 and vice-side winding 3 are installed, further, integrated leakage inductance resonance transformer
Also include skeleton 5, skeleton 5 be located at magnetic core 1 inside, for supporting primary side winding 2 and vice-side winding 3, it is ensured that primary side winding 2 and
3 installation place of vice-side winding has higher structural strength.
This utility model is described with reference to the preferred embodiments, and those skilled in the art know, without departing from this reality
In the case of with new spirit and scope, various changes or equivalence replacement can be carried out to these features and embodiment.This reality
It is not limited to the particular embodiment disclosed with new, other embodiments fallen in claims hereof all belong to
In the scope of this utility model protection.
Claims (7)
1. a kind of low voltage heavy current transformer, including magnetic core（1）, positioned at the magnetic core（1）Internal winding（2）, its feature exists
In：
The winding（2）With the magnetic core（1）Grafting coordinates；
The winding（2）Including primary side winding（21）And vice-side winding（22）；
The primary side winding（21）With the vice-side winding（22）The magnetic core is fixed on around mode by former secondary folder（1）It is interior.
2. low voltage heavy current transformer according to claim 1, it is characterised in that：
The vice-side winding（22）By some secondary copper sheets（221）Closed assembly is formed；
Secondary copper sheet described in multilamellar（221）Between be provided with for accommodating the primary side winding（21）Thickness gap（211）.
3. low voltage heavy current transformer according to claim 1 and 2, it is characterised in that：
The primary side winding（21）It is configured to the parallel-connection structure using line cake mode or multi-turn copper sheet mode coiling.
4. low voltage heavy current transformer according to claim 1 and 2, it is characterised in that：
The primary side winding（21）It is configured to the cascaded structure using line cake mode or multi-turn copper sheet mode coiling.
5. low voltage heavy current transformer according to claim 1, it is characterised in that：
Also include first kind pin（41）And Equations of The Second Kind pin（42）；
The first kind pin（41）Positioned at the magnetic core（1）Side；
The Equations of The Second Kind pin（42）Positioned at the magnetic core（1）Opposite side.
6. low voltage heavy current transformer according to claim 2, it is characterised in that：
Multiple secondary copper sheets（221）It is integrated by lock screw lock and fixed.
7. the low voltage heavy current transformer according to claim 2 or 6, it is characterised in that：
The adjacent secondary copper sheet（221）Between gap in be filled with copper billet（5）.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621108220.7U CN206059126U (en) | 2016-10-10 | 2016-10-10 | A kind of low voltage heavy current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621108220.7U CN206059126U (en) | 2016-10-10 | 2016-10-10 | A kind of low voltage heavy current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206059126U true CN206059126U (en) | 2017-03-29 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621108220.7U Expired - Fee Related CN206059126U (en) | 2016-10-10 | 2016-10-10 | A kind of low voltage heavy current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206059126U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107025990A (en) * | 2017-04-18 | 2017-08-08 | 上海激光电源设备有限责任公司 | Optical-fiber laser power supply high-power density transformer |
-
2016
- 2016-10-10 CN CN201621108220.7U patent/CN206059126U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107025990A (en) * | 2017-04-18 | 2017-08-08 | 上海激光电源设备有限责任公司 | Optical-fiber laser power supply high-power density transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20170329 Termination date: 20191010 |