CN208400683U - A kind of compact no-encapsulated-winding dry-type transformer - Google Patents
A kind of compact no-encapsulated-winding dry-type transformer Download PDFInfo
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- CN208400683U CN208400683U CN201821005470.7U CN201821005470U CN208400683U CN 208400683 U CN208400683 U CN 208400683U CN 201821005470 U CN201821005470 U CN 201821005470U CN 208400683 U CN208400683 U CN 208400683U
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- type transformer
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Abstract
The utility model discloses a kind of compact no-encapsulated-winding dry-type transformers, including high-tension coil, the low-voltage coil on the inside of high-tension coil, the iron core in low-voltage coil, the high-tension coil includes that multiple groups contact the line cake stacked, the low-voltage coil includes that multiple groups contact the line cake stacked, each line cake is made of core around multi-turn, and the core coats polyimide film.Increase the thickness of insulated barriers layer of the core between the line cake of coil short transverse, the insulation spacing between line cake so as to cancel coil, so that coil desired height becomes smaller, it is short to make the height of transformer contract, so that the material utilization amount of iron core reduces, to save material cost, the volume of transformer is also reduced.
Description
Technical field
The utility model relates to transformer more particularly to a kind of compact no-encapsulated-winding dry-type transformers.
Background technique
Existing non-encapsulated transformer is typically placed in indoor use, and longitudinal direction is reserved between high-tension coil and low-voltage coil
Main airway, main airway plays aeration-cooling effect, while also acting as the important function of air insulation.As shown in Figure 1, existing
Non-encapsulated transformer include high-tension coil 13, the low-voltage coil 12 on the inside of high-tension coil, the iron in low-voltage coil
Core 11, the insulating layer 15 on the inside of high-tension coil are equipped with longitudinal main airway 16 between high-voltage coil and low-voltage coil.However it is horizontal due to existing
To air flue, i.e., need to reserve certain spacing as insulated barriers distance between the line cake of high-tension coil, low-voltage coil is also this
Sample, so that high-tension coil and the longitudinal height of low-voltage coil are bigger, then the height of iron core is bigger, and the consumptive material dosage of iron core compares
Greatly.
Summary of the invention
In view of the deficiencies of the prior art, the technical problem to be solved by the present invention is to provide a kind of the compact of more material saving
Type no-encapsulated-winding dry-type transformer.
In order to solve the above-mentioned technical problem, the technical scheme adopted by the utility model is a kind of compact non-encapsulated is dry
Formula transformer comprising high-tension coil, the low-voltage coil on the inside of high-tension coil, the iron core in low-voltage coil, it is described
High-tension coil includes that multiple groups contact the line cake stacked, and the low-voltage coil includes that multiple groups contact the line cake stacked, each line
Cake is made of core around multi-turn, and the core coats polyimide film.
A kind of improvement of technical solution as the utility model compact no-encapsulated-winding dry-type transformer, the core it is narrow
Face paste has insulated barriers layer, which is located in polyimide film.
A kind of improvement of technical solution as the utility model compact no-encapsulated-winding dry-type transformer, between the line cake
Equipped with shim.
A kind of improvement of technical solution as the utility model compact no-encapsulated-winding dry-type transformer, the high-tension coil
The composite polyester film of insulating effect, the periphery of the inner wall face contact low-voltage coil of composite polyester film have been equipped between low-voltage coil
Face, the medial surface of the outer wall face contact high-tension coil of composite polyester film.
A kind of improvement of technical solution as the utility model compact no-encapsulated-winding dry-type transformer, the complex polyester
Film is wound in the outer peripheral surface of low-voltage coil.
A kind of improvement of technical solution as the utility model compact no-encapsulated-winding dry-type transformer, every circle complex polyester
Film dislocation code is laminated on the outside of the composite polyester film of an adjacent circle.
A kind of improvement of technical solution as the utility model compact no-encapsulated-winding dry-type transformer, the complex polyester
Film is the diaphragm being placed on the outside of low-voltage coil.
A kind of improvement of technical solution as the utility model compact no-encapsulated-winding dry-type transformer, the low-voltage coil
Installation support frame makes high-tension coil after putting on composite polyester film.
The utility model has the beneficial effects that: increasing insulated barriers layer of the core between the line cake of coil short transverse
Thickness, the insulation spacing between line cake so as to cancel coil, so that coil desired height becomes smaller, to make transformer
Height contracting it is short so that the material utilization amount of iron core reduces, to save material cost, also reduce the body of transformer
Product.
Detailed description of the invention
Fig. 1 is the cross-sectional configuration schematic diagram of existing no-encapsulated-winding dry-type transformer.
Fig. 2 is a kind of cross-sectional configuration schematic diagram of compact no-encapsulated-winding dry-type transformer of the utility model.
Fig. 3 is the Structure Comparison figure of existing no-encapsulated-winding dry-type transformer and the utility model dry-type transformer.
Specific embodiment
Further illustrate specific embodiment of the present utility model with reference to the accompanying drawing.
As shown in Figure 2 and Figure 3, a kind of compact no-encapsulated-winding dry-type transformer of the utility model comprising high-tension coil 13,
Low-voltage coil 12, the iron core 11 in low-voltage coil positioned at 13 inside of high-tension coil, the high-tension coil includes that multiple groups connect
The line cake 25 stacked is touched, the low-voltage coil 12 includes that multiple groups contact the line cake 25 stacked, and each line cake 25 is by core ring
It is formed around multi-turn, the core coats polyimide film (not shown).Increase core between the line cake 25 of coil short transverse
Insulated barriers layer thickness, the insulation spacing between line cake 25 so as to cancel coil, so that height needed for coil 12/13
Degree becomes smaller, so that it is short so that the height of transformer is contracted so that the material utilization amount of iron core 11 reduces, thus save material at
This, also reduces the volume of transformer.
More preferably, the leptoprosopy of the core is pasted with insulated barriers layer, which is located in polyimide film, if
The winding thickness of core can be reduced by setting insulated barriers layer then, can also reach required insulating capacity between line cake.
More preferably, shim (not shown) is equipped between the line cake 25, it is possible to reduce the winding thickness of core, line cake 25
Between can also reach required insulating capacity.
More preferably, it has been equipped with the composite polyester film of insulating effect between the high-tension coil 13 and low-voltage coil 12, has insulated
The outer peripheral surface of the inner wall face contact low-voltage coil 12 of Material cladding polyester film, the outer wall face contact high-tension coil 13 of composite polyester film
Medial surface, the support of high-tension coil settable support frame 19 forms high-tension coil 13 around upper core production line cake.Namely non-
Cancel longitudinal gas channel instead insulated barriers layer, longitudinal direction of the barrier layer than air barrier in encapsulating dry type transformer
The thickness of air flue greatly reduces, so that the diameter of high-tension coil 13 becomes smaller, and then makes the volume of high-tension coil 13 become smaller, material
Material usage amount reduces, so that material cost reduces, volume of transformer is had also been smaller.
More preferably, the composite polyester film is wound in the outer peripheral surface of low-voltage coil 12, that is, be located at low-voltage coil 12 with
13 diameter of high-tension coil, plays the role of insulated barriers, reduces the space length of insulated barriers, reduces the volume of transformer.
More preferably, every circle composite polyester film dislocation code is laminated on the outside of the composite polyester film of an adjacent circle, so that low-voltage line
It encloses 12 surfaces and almost covers two layers of composite polyester film, and without hollow out between two adjacent rings composite polyester film.
More preferably, the composite polyester film is the diaphragm for being placed on 12 outside of low-voltage coil, forms the insulated barriers obstructed entirely
It acts on, required barrier distance greatly reduces between high-voltage coil and low-voltage coil, to reduce the diameter and volume of high-tension coil, reduces and becomes
The volume of depressor, the usage amount of less high-tension coil wire rod reduce material cost.
More preferably, the low-voltage coil 12 puts on installation support frame production high-tension coil 13 after composite polyester film, whole to divide
Walk production high-voltage coil and low-voltage coil group, can to avoid between high-voltage coil and low-voltage coil reserve more than barrier layer thickness clearance space, with
Barrier layer is just installed, so that transformer is more compact, the volume of high-tension coil is further reduced, reduces material requested.
It above disclosure is merely preferred embodiments of the utility model, certainly cannot be practical new to limit this with this
The interest field of type, therefore equivalent variations made according to the patent scope of the utility model still belong to the utility model and are covered
Range.
Claims (8)
1. a kind of compact no-encapsulated-winding dry-type transformer, it is characterised in that: low including high-tension coil, on the inside of high-tension coil
Crimping circle, the iron core in low-voltage coil, the high-tension coil include that multiple groups contact the line cake stacked, the low-voltage coil packet
It includes multiple groups and contacts the line cake stacked, each line cake is made of core around multi-turn, and the core coats polyimide film.
2. compact no-encapsulated-winding dry-type transformer according to claim 1, it is characterised in that: the leptoprosopy of the core attaches
There is insulated barriers layer, which is located in polyimide film.
3. compact no-encapsulated-winding dry-type transformer according to claim 1, it is characterised in that: be equipped with and divide between the line cake
Partition.
4. compact no-encapsulated-winding dry-type transformer according to claim 1, it is characterised in that: the high-tension coil and low pressure
The composite polyester film of insulating effect is equipped between coil, the outer peripheral surface of the inner wall face contact low-voltage coil of composite polyester film is multiple
Close the medial surface of the outer wall face contact high-tension coil of polyester film.
5. compact no-encapsulated-winding dry-type transformer according to claim 4, it is characterised in that: the composite polyester film winding
In the outer peripheral surface of low-voltage coil.
6. compact no-encapsulated-winding dry-type transformer according to claim 5, it is characterised in that: every circle composite polyester film dislocation
Code is laminated on the outside of the composite polyester film of an adjacent circle.
7. compact no-encapsulated-winding dry-type transformer according to claim 4, it is characterised in that: the composite polyester film is set
Diaphragm on the outside of low-voltage coil.
8. according to compact no-encapsulated-winding dry-type transformer described in claim 4 or 5 or 7, it is characterised in that: the low-voltage coil
Installation support frame makes high-tension coil after putting on composite polyester film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821005470.7U CN208400683U (en) | 2018-06-27 | 2018-06-27 | A kind of compact no-encapsulated-winding dry-type transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821005470.7U CN208400683U (en) | 2018-06-27 | 2018-06-27 | A kind of compact no-encapsulated-winding dry-type transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208400683U true CN208400683U (en) | 2019-01-18 |
Family
ID=65133560
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821005470.7U Active CN208400683U (en) | 2018-06-27 | 2018-06-27 | A kind of compact no-encapsulated-winding dry-type transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208400683U (en) |
-
2018
- 2018-06-27 CN CN201821005470.7U patent/CN208400683U/en active Active
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