CN206225188U - A kind of low voltage heavy current transformer - Google Patents
A kind of low voltage heavy current transformer Download PDFInfo
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- CN206225188U CN206225188U CN201621269585.8U CN201621269585U CN206225188U CN 206225188 U CN206225188 U CN 206225188U CN 201621269585 U CN201621269585 U CN 201621269585U CN 206225188 U CN206225188 U CN 206225188U
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- copper bar
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Abstract
The utility model discloses a kind of low voltage heavy current transformer, including transformer shell, transformer center bar, there is a cavity in transformer shell body, cavity open top is provided with a hollow cylinder in cavity, the transformer center bar is fixed in the hollow cylinder；Annular core is additionally provided with cavity, the periphery of annular core is arranged with primary wires group；Cavity is externally provided with two first copper bars and two second copper bars, two one end of first copper bar are connected with hollow cylinder, two one end of second copper bar are connected with transformer center bar, wherein one other end of the first copper bar is connected with the other end of wherein second copper bar, and primary wires group is located in the interval that the first copper bar, the second copper bar are formed.First copper bar of the present utility model and the second copper bar constitute secondary wire group, and primary wires group is arranged in secondary wire group, good heat dissipation effect, and inside cavity total is closed magnetic circuit, externally disturbs small, and Electro Magnetic Compatibility is good.
Description
Technical field
The utility model is related to transformer technology field, more particularly to a kind of low voltage heavy current transformer.
Background technology
Power switch power source big or middle has a very wide range of applications in industrial circle, and medium, high frequency transformer is used as switch electricity
The important part in source, the quality of its performance directly influences the performance of the whole machine of Switching Power Supply.In output low-voltage, high-current
Switch Power Transformer, usual transformer device structure includes that input winding is around on toroidal core, and copper pipe and copper bar are coated on ring
The outside of shape magnetic core and middle formation outer ring and inner ring, copper bar and copper pipe constitute every output winding of medium/high frequency transformer, lead to
The secondary export structure of normal single transformer is a circle.When low-voltage, high-current is exported, secondary export structure is the single change of 1 circle
Depressor is often difficult to realize, and often carries out connection in series-parallel realization, complex structure, and caloric value greatly using multiple transformers, anti-interference
Can be poor.
Utility model content
In order to overcome the deficiencies in the prior art, the purpose of this utility model is to provide a kind of low voltage heavy current transformer,
It can solve the problems, such as weak heat-dissipating, poor anti-interference in the prior art.
The purpose of this utility model is realized using following technical scheme：
There is a chamber in a kind of low voltage heavy current transformer, including transformer shell, transformer center bar, transformer shell body
Body, cavity open top is provided with a hollow cylinder in cavity, the transformer center bar is fixed in the hollow cylinder；Outside cavity
Annular core is additionally provided with, the periphery of annular core is arranged with primary wires group；Two first copper bars and two are provided with cavity
Two copper bars, two one end of first copper bar are connected with hollow cylinder, two one end of second copper bar with transformer center bar
Connection, wherein an other end for the first copper bar is connected with the other end of wherein second copper bar, primary wires group is positioned at the
In the interval that one copper bar, the second copper bar are formed.
Preferably, wherein one other end of the first copper bar is connected to be formed with the other end of wherein second copper bar
Tap.
Preferably, it is provided with dielectric film between the inwall of the hollow cylinder and transformer center bar.
Preferably, one end of two first copper bars is connected by bolt with hollow cylinder.
Preferably, one end of two second copper bars is connected by bolt with hollow cylinder.
Preferably, it is also filled with silica gel in the cavity.
Compared to existing technology, the beneficial effects of the utility model are：
First copper bar of the present utility model and the second copper bar constitute secondary wire group, and primary wires group is arranged on secondary wire
In group, good heat dissipation effect, and inside cavity total is closed magnetic circuit, externally disturbs small, Electro Magnetic Compatibility is good.
Brief description of the drawings
Fig. 1 is the structure chart of transformer shell of the present utility model；
Fig. 2 is the structure chart of low voltage heavy current transformer of the present utility model；
Fig. 3 is the schematic diagram of low voltage heavy current transformer of the present utility model
In figure：1st, transformer shell；11st, cavity；12nd, hollow cylinder；2nd, transformer center bar；3rd, annular core；4th, just
Level wire group；5a, the first copper bar；5b, the first copper bar；6a, the second copper bar；6b, the second copper bar；7th, dielectric film；8th, bolt；9th, silicon
Glue；10th, insulate fixed column.
Specific embodiment
Below, with reference to accompanying drawing and specific embodiment, the utility model is described further：
Referring to Fig. 1 and Fig. 2, the utility model provides a kind of low voltage heavy current transformer, and it includes transformer shell 1, becomes
There is a cavity 11 in depressor center bar 2, transformer shell 1, be groove equivalent to transformer shell 1, outside transformer shell 1
Shape can be cube, and the shape of its cavity 11 can be cylindric.The top of cavity 11 has opening, and cavity 11 is interior to be provided with one
Void column body 12, specifically, the hollow cylinder 12 can be arranged on the centre position of cavity 11, the shape of hollow cylinder 12 can be
Cylinder.Transformer center bar 2 is fixed in the hollow cylinder 12；Annular core 3 is additionally provided with cavity 11, this annular core 3
Periphery be arranged with primary wires group 4.Annular core 3 and primary wires group 4 are enclosed within the periphery of hollow cylinder 12.Cavity 11
Periphery is provided with two first copper bars 5a, 5b, and two second copper bars 6a, 6b, and two first one end of copper bar 5a, 5b are with
Void column body 12 is connected, and two second one end of copper bar 6a, 6b are connected with transformer center bar 2, the other end of the first copper bar 5a
The other end with the second copper bar 6b is connected.First copper bar 5a, 5b and second copper bar 6a, 6b surround a region, primary wires group 4
Then it is located in the interval that the first copper bar 5a, 5b and second copper bar 6a, 6b is formed.First copper bar 5a, 5b and the second copper bar group 6a,
6b, transformer center bar 2 and hollow cylinder 12 are common into secondary wire group, and secondary wire group is both structure carrier, is also current-carrying
Body, primary wires group 4 is arranged in secondary wire group, good heat dissipation effect.The inside total of cavity 11 is this road of closure, externally
Interference is small, and Electro Magnetic Compatibility is good.
In Fig. 3, A1 and A2 is the input terminal of primary wires group 4, and b1 and b2 is the outlet terminal of secondary wire group, and X is
The centre cap of secondary wire group.Wherein, as shown in Fig. 2 the second copper bar 6a is the secondary initial copper of low voltage heavy current transformer
Row, the first copper bar 5b is then the end copper bar of low voltage heavy current transformer, and the first copper bar 5a and the second copper bar 6b is transformer
Centre cap.Second copper bar 6a, transformer center bar 2, the second copper bar 6b, the first copper bar 5a constitute the first of secondary wire group
Circle, the copper bar 5b of hollow cylinder 12 and first constitute secondary wire group the second circle, the first copper bar 5a and 5b, the second copper bar 6a and
6b, transformer center bar 2 and hollow cylinder 12 collectively constitute the secondary wire group of two circles.First copper bar 5a, 5b and the second copper bar
6a, 6b are also fixed by the fixed column 10 that insulate with the side wall of transformer shell 1.
Transformer shell 1 is aluminium casting, and dielectric film 7 is provided between the inwall and transformer center bar 2 of hollow cylinder 12,
Increased insulation effect.Still further aspect, hollow cylinder 12 and cavity 11 are cylindric, hollow cylinder 12 and are wound on annular iron
The outside of the inner side geometry laminating of the primary wires group 4 on core 3, cavity 11 and the primary wires group 4 being wound on annular core 3 is several
What is fitted, and by the filling gel 9 in cavity 11, silica gel 9 is potted in the inside of secondary wire group and cavity 11, and space is complete
It is filled, heat conduction is uniform, the heat that primary wires group is produced can be conducted, good heat dissipation effect, while embedding is also functioned to
Effect that is fixed, increasing intensity, reduce noise.On transformer shell 1 can also increase water-cooled original paper when needing or inside sets
It is equipped with cooling line and further enhances radiating effect.
It will be apparent to those skilled in the art that technical scheme that can be as described above and design, make other various
It is corresponding to change and deformation, and all these change and deformation should all belong to the protection of the utility model claim
Within the scope of.
Claims (6)
1. a kind of low voltage heavy current transformer, it is characterised in that including transformer shell, transformer center bar, transformer shell
Inside there is a cavity, cavity open top is provided with a hollow cylinder in cavity, the transformer center bar is fixed on the hollow cylinder
It is interior；Annular core is additionally provided with cavity, the periphery of annular core is arranged with primary wires group；Cavity is externally provided with two first copper bars
With two second copper bars, two one end of first copper bar are connected with hollow cylinder, and two one end of second copper bar are and transformation
Device center bar is connected, wherein an other end for the first copper bar is connected with the other end of wherein second copper bar, primary wires
Group is in the interval that the first copper bar, the second copper bar are formed.
2. low voltage heavy current transformer as claimed in claim 1, it is characterised in that wherein one first copper bar it is another
End is connected to form tap with the other end of wherein second copper bar.
3. low voltage heavy current transformer as claimed in claim 1, it is characterised in that the inwall and transformer of the hollow cylinder
Dielectric film is provided between center bar.
4. low voltage heavy current transformer as claimed in claim 1, it is characterised in that one end of two first copper bars leads to
Bolt is crossed to be connected with hollow cylinder.
5. low voltage heavy current transformer as claimed in claim 1, it is characterised in that one end of two second copper bars leads to
Bolt is crossed to be connected with hollow cylinder.
6. low voltage heavy current transformer as claimed in claim 1, it is characterised in that be also filled with silica gel in the cavity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621269585.8U CN206225188U (en) | 2016-11-24 | 2016-11-24 | A kind of low voltage heavy current transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621269585.8U CN206225188U (en) | 2016-11-24 | 2016-11-24 | A kind of low voltage heavy current transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206225188U true CN206225188U (en) | 2017-06-06 |
Family
ID=58791354
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621269585.8U Active CN206225188U (en) | 2016-11-24 | 2016-11-24 | A kind of low voltage heavy current transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206225188U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110517871B (en) * | 2019-08-23 | 2024-06-04 | 无锡爱邦辐射技术有限公司 | Internal middle and external three-shielding transformer |
-
2016
- 2016-11-24 CN CN201621269585.8U patent/CN206225188U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110517871B (en) * | 2019-08-23 | 2024-06-04 | 无锡爱邦辐射技术有限公司 | Internal middle and external three-shielding transformer |
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