CN204242778U - A kind of railway isolating transformer - Google Patents
A kind of railway isolating transformer Download PDFInfo
- Publication number
- CN204242778U CN204242778U CN201420667000.2U CN201420667000U CN204242778U CN 204242778 U CN204242778 U CN 204242778U CN 201420667000 U CN201420667000 U CN 201420667000U CN 204242778 U CN204242778 U CN 204242778U
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- secondary winding
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- armature winding
- straight portion
- described secondary
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Abstract
The utility model is created and is provided a kind of railway isolating transformer structure, comprise armature winding and secondary winding, secondary winding wound is outside cylindricality iron core, armature winding is positioned at outside secondary winding, armature winding and secondary winding are the ellipsoidal structure that both sides are straight flange, the straight portion of armature winding is equal with the straight portion length of secondary winding, and the insulating barrier of the insulating barrier of the straight portion of armature winding and the straight portion of secondary winding is interconnected, the major axis of armature winding is greater than the major axis of secondary winding, the arc edge of armature winding divides camber cavity fractal with the arc edge of secondary winding, some ribs are provided with in arc-shaped cavity.A kind of railway isolating transformer structure, adopt ellipsoidal structure, whole height unshakable in one's determination and width all than circular, square iron core is little, thus reduce core loss, oval centre-to-centre spacing unshakable in one's determination reduces, and shorten magnetic circuit, no-load current is corresponding reduction also, total losses of transformer is reduced further, saves operating cost.
Description
Technical field
The invention belongs to field of electrical equipment, especially relates to a kind of railway isolating transformer.
Background technology
It is all generally fixing column type iron core or square iron core that railway isolating transformer traditional at present uses unshakable in one's determination, and core section is circular or rectangle, and winding construction and iron core shape cooperatively interact.Although the iron core good looking appearance of circular cross-section and square-section, core loss is many, and no-load current is comparatively large, and total losses of transformer is comparatively large, increases production cost, reduces product profit rate.Chinese patent CN201522917 U discloses a kind of ellipse oil immersion-type distribution transformer, comprise cylindricality iron core and the low pressure winding be wrapped on iron core and high pressure winding, core section is set as the ellipsoidal structure that both sides are straight flange, low pressure winding and high pressure winding are also set to this ellipsoidal structure, and low pressure winding and high pressure winding arrange insulating barrier.Although transformer disclosed in patent to some extent solves the high problem of common transformer cost, but due to the stability of transformer device structure will be ensured between low pressure winding and high pressure winding, need to be fixed connection to inside and outside winding, so there is no special heat dissipation structure, make whole transformer radiating effect poor.
Summary of the invention
The invention will solve above technical problem, a kind of novel railway isolating transformer being provided, solving outside the high problem of existing transformer cost, effectively can also improving radiating effect, compared to the transformer device structure disclosed in patent, its effect reducing transformer cost high is more obvious.
For solving the problems of the technologies described above, the technical scheme that the invention adopts is: a kind of railway isolating transformer structure, comprise armature winding and secondary winding, described secondary winding wound is outside cylindricality iron core, described armature winding is positioned at outside described secondary winding, described armature winding and described secondary winding are the ellipsoidal structure that both sides are straight flange, described armature winding and described secondary winding periphery are equipped with insulating barrier, the straight portion of described armature winding is equal with the straight portion length of described secondary winding, and the insulating barrier of the straight portion of the insulating barrier of the straight portion of described armature winding and described secondary winding is interconnected, the major axis of described armature winding is greater than the major axis of described secondary winding, the arc edge of described armature winding divides camber cavity fractal with the arc edge of described secondary winding, some ribs are provided with in described arc-shaped cavity, the arc edge that described ribs connects described armature winding is divided and is divided with the arc edge of described secondary winding, described arc-shaped cavity is made to form some cooling airway.
Further, the tangent line that divides of the arc edge of described ribs and described secondary winding is perpendicular.
Further, radiating copper sheet is provided with between the straight portion of described armature winding and the straight portion of described secondary winding.
The advantage that the invention has and good effect are: a kind of railway isolating transformer structure, abandoning tradition core limb is square, circular configuration mode, by the experimental data accumulated in production practices, design the transformer produced and adopt ellipsoidal structure, whole height unshakable in one's determination and width are all than circle, square iron core is little, thus reduce core loss, oval centre-to-centre spacing unshakable in one's determination reduces, shorten magnetic circuit, no-load current is corresponding reduction also, activity coefficient unshakable in one's determination is higher, window and perimeter dimension less, angle heavy and light, can effectively save silicon steel sheet and copper cash, further shorten copper conductor length, reduce copper loss, total losses of transformer is reduced further, save operating cost.Oval railway isolating transformer comparatively traditional transformer, saves the copper consumption of 30.4%, and total losses of transformer reduces 23.2%, and cost reduces by 18.7%, and all technical meets technical requirement completely, and technical merit is leading.The armature winding of the invention and secondary winding only have straight portion to be connected to each other; the fractal camber cavity of arc edge; the high and low pressure loop construction that can be parallel to each other compared to two in existing patent like this, more save cost, do not reduce the integrally-built stability of transformer simultaneously.In addition some cooling airway of being formed by ribs of radiating copper sheet and arc-shaped cavity, improve transformer heat dispersion.
Accompanying drawing explanation
Fig. 1 is the perspective view of the invention.
In figure: 1, armature winding; 2, secondary winding; 3, arc-shaped cavity; 4, ribs.
Embodiment
Elaborate below in conjunction with the specific embodiment of accompanying drawing to the invention.
As shown in Figure 1, a kind of railway isolating transformer structure, comprise armature winding 1 and secondary winding 2, described secondary winding 2 is wrapped in outside cylindricality iron core, described armature winding 1 is positioned at outside described secondary winding 2, described armature winding 1 and described secondary winding 2 are the ellipsoidal structure that both sides are straight flange, described armature winding 1 and described secondary winding 2 periphery are equipped with insulating barrier, the straight portion of described armature winding 1 is equal with the straight portion length of described secondary winding 2, and the insulating barrier of the insulating barrier of the straight portion of described armature winding 1 and the straight portion of described secondary winding 2 is interconnected, the major axis of described armature winding 1 is greater than the major axis of described secondary winding 2, the arc edge of described armature winding 1 divides camber cavity 3 fractal with the arc edge of described secondary winding 2, some ribs 4 are provided with in described arc-shaped cavity 3, the arc edge that described ribs 4 connects described armature winding 1 is divided and is divided with the arc edge of described secondary winding 2, described arc-shaped cavity 3 is made to form some cooling airway.The tangent line that described ribs 4 and the arc edge of described secondary winding 2 are divided is perpendicular.Radiating copper sheet is provided with between the straight portion of described armature winding 1 and the straight portion of described secondary winding 2.
A kind of railway isolating transformer structure, abandoning tradition core limb is square, circular configuration mode, by the experimental data accumulated in production practices, design the transformer produced and adopt ellipsoidal structure, whole height unshakable in one's determination and width are all than circle, square iron core is little, thus reduce core loss, oval centre-to-centre spacing unshakable in one's determination reduces, shorten magnetic circuit, no-load current is corresponding reduction also, adopt oval winding mode, further shorten copper conductor length, reduce copper loss, activity coefficient unshakable in one's determination is higher, window and perimeter dimension less, angle heavy and light, can effectively save silicon steel sheet and copper cash, also the total losses of transformer are effectively reduced, save operating cost.Oval snow melt transformer comparatively traditional transformer, saves the copper consumption of 30.4%, and total losses of transformer reduces 23.2%, and cost reduces by 18.7%, and all technical meets technical requirement completely, and technical merit is leading.The armature winding of the invention and secondary winding only have straight portion to be connected to each other; the fractal camber cavity of arc edge; the high and low pressure loop construction that can be parallel to each other compared to two in existing patent like this, more save cost, do not reduce the integrally-built stability of transformer simultaneously.In addition some cooling airway of being formed by ribs of radiating copper sheet and arc-shaped cavity, improve transformer heat dispersion.
Above an embodiment of the invention has been described in detail, but described content being only the preferred embodiment of the invention, the practical range for limiting the invention can not being considered to.All equalization changes done according to the invention application range with improve, within the patent covering scope that still all should belong to the invention.
Claims (3)
1. a railway isolating transformer structure, it is characterized in that: comprise armature winding and secondary winding, described secondary winding wound is outside cylindricality iron core, described armature winding is positioned at outside described secondary winding, described armature winding and described secondary winding are the ellipsoidal structure that both sides are straight flange, described armature winding and described secondary winding periphery are equipped with insulating barrier, the straight portion of described armature winding is equal with the straight portion length of described secondary winding, and the insulating barrier of the straight portion of the insulating barrier of the straight portion of described armature winding and described secondary winding is interconnected, the major axis of described armature winding is greater than the major axis of described secondary winding, the arc edge of described armature winding divides camber cavity fractal with the arc edge of described secondary winding, some ribs are provided with in described arc-shaped cavity, the arc edge that described ribs connects described armature winding is divided and is divided with the arc edge of described secondary winding, described arc-shaped cavity is made to form some cooling airway.
2. a kind of railway isolating transformer structure according to claim 1, is characterized in that: the tangent line that the arc edge of described ribs and described secondary winding is divided is perpendicular.
3. a kind of railway isolating transformer structure according to claim 1, is characterized in that: be provided with radiating copper sheet between the straight portion of described armature winding and the straight portion of described secondary winding.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420667000.2U CN204242778U (en) | 2014-11-10 | 2014-11-10 | A kind of railway isolating transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420667000.2U CN204242778U (en) | 2014-11-10 | 2014-11-10 | A kind of railway isolating transformer |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204242778U true CN204242778U (en) | 2015-04-01 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420667000.2U Expired - Fee Related CN204242778U (en) | 2014-11-10 | 2014-11-10 | A kind of railway isolating transformer |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204242778U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104361980A (en) * | 2014-11-10 | 2015-02-18 | 天津市元和华铁电气设备有限公司 | Railway isolation transformer |
-
2014
- 2014-11-10 CN CN201420667000.2U patent/CN204242778U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104361980A (en) * | 2014-11-10 | 2015-02-18 | 天津市元和华铁电气设备有限公司 | Railway isolation transformer |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20150401 Termination date: 20191110 |