CN206388600U - Coil molding stepping bar - Google Patents
Coil molding stepping bar Download PDFInfo
- Publication number
- CN206388600U CN206388600U CN201621342677.4U CN201621342677U CN206388600U CN 206388600 U CN206388600 U CN 206388600U CN 201621342677 U CN201621342677 U CN 201621342677U CN 206388600 U CN206388600 U CN 206388600U
- Authority
- CN
- China
- Prior art keywords
- stem portion
- coil molding
- stripes
- stepping bar
- layer
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
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- Insulating Of Coils (AREA)
Abstract
The utility model is related to power transformer technical field, more particularly to a kind of coil molding stepping bar.A kind of coil molding stepping bar of the present utility model, including：Stem portion, the several stripes being connected with stem portion；The connection vertical with stem portion of several stripes, the top of the both sides of coil molding stepping bar is symmetrical inclined-plane, and the height of the stripes of the both sides of coil molding stepping bar is gradually reduced from the inside to the outside；Provided with the several grooves be arrangeding in parallel between several stripes；Effectively increase the stability and mechanical strength of line cake, it is ensured that product reliability.
Description
Technical field
The utility model is related to power transformer technical field, more particularly to a kind of coil molding stepping bar.
Background technology
In transformer, requirement of the continuous winding for satisfaction to the number of turn, it will usually have partial line cake number of turn in coiling
More conventional line cake is on the low side, to ensure that each line cake internal-and external diameter of coil is consistent, while meet the requirement of operating procedure, typically can be with thin
Insulating paper lath levels up number of turn line cake internal-and external diameter on the low side.When the thickness for needing to level up is larger, insulating paper lath is through multilayer
More loose after superposition, less stable causes the reduction of line cake mechanical strength.
Therefore, it is necessary to a kind of coil molding stepping bar be provided, to solve the above problems.
Utility model content
The technical problems to be solved in the utility model is to provide a kind of coil molding stepping bar, to solve insulating paper lath through many
Stacking is more loose after adding, and less stable causes the problem of line cake mechanical strength is reduced.
In order to solve the above technical problems, the technical solution adopted in the utility model is：
A kind of coil molding stepping bar, including：Stem portion, the several stripes being connected with the stem portion；
Several stripes are vertical with the stem portion to be connected, and the top of the both sides of the coil molding stepping bar is symmetrical
Inclined-plane, the height of the stripes of the both sides of the coil molding stepping bar gradually reduces from the inside to the outside；Several stripes it
Between provided with several grooves for be arrangeding in parallel.
The stem portion and stripes by two layers unsaturated polyester (UP) layer, be arranged at two layers of unsaturated polyester (UP) layer
Between two layers of phenolic resin glue-line and be arranged between two layers of the phenolic resin glue-line polyester-imide layer and insulating board
It is combined into；Unsaturated polyester (UP) layer, phenolic resin glue-line, polyester-imide layer in the stem portion is corresponding with insulating board same
Position is equipped with nested groove；Adjacent two in the unsaturated polyester (UP) layer, phenolic resin glue-line, polyester-imide layer and insulating board
Interlayer is mutually nested by the nested groove；The nested groove is annular.
The width of the stripes is 21mm, and the width of the groove is 4mm, trunk described in the distance from bottom of the groove
The bottom 3mm in portion.
The utility model is had the advantage that with effect：
A kind of coil molding stepping bar of the present utility model, including：Stem portion, the several stripes being connected with stem portion；Number
The connection vertical with stem portion of individual stripes, the top of the both sides of coil molding stepping bar is symmetrical inclined-plane, coil molding stepping bar
The height of stripes of both sides gradually reduce from the inside to the outside；Provided with the several grooves be arrangeding in parallel between several stripes；Have
Effect improves the stability and mechanical strength of line cake, it is ensured that product reliability.
Brief description of the drawings
The utility model is described in further detail below in conjunction with the accompanying drawings：
Fig. 1 is the structural representation of coil molding stepping bar of the present utility model；
Fig. 2 is the schematic diagram of the side of coil molding stepping bar of the present utility model.
In figure：Stripes 5, groove 6, stem portion 7.
Embodiment
As shown in Figure 1 to Figure 2, the utility model provides a kind of coil molding stepping bar, including：Stem portion 7 and stem portion 7
Several stripes 5 of connection, several stripes 5 are vertical with stem portion 7 to be connected, and the top of the both sides of coil molding stepping bar is symmetrical
Inclined-plane, the length on inclined-plane determines as needed.The height of the stripes 5 of the both sides of coil molding stepping bar gradually drops from the inside to the outside
It is low；Provided with the several grooves 6 be arrangeding in parallel between several stripes 5, so that the rigid coil molding stepping bar that can not be bent
Circular arc can be curved, and then is padded in circular coil.
Stem portion 7 and stripes 5 by two layers unsaturated polyester (UP) layer, be arranged between two layers of unsaturated polyester (UP) layer two
Layer phenolic resin glue-line and the polyester-imide layer and insulating board that are arranged between two layers of phenolic resin glue-line are combined into；
Unsaturated polyester (UP) layer, phenolic resin glue-line, polyester-imide layer same position corresponding with insulating board in stem portion 7 are equipped with embedding
Grooving；Unsaturated polyester (UP) layer, phenolic resin glue-line, polyester-imide layer two interlayer adjacent with insulating board pass through nested groove phase
It is mutually nested；Nested groove is annular.The width of stripes 5 is 21mm, and the width of groove 6 is 4mm, the distance from bottom trunk of groove 6
The bottom 3mm in portion 7.
Can also, stem portion 7 and stripes 5 are formed in one part, process groove 6 by laminated paper board and are made, groove 6
Filler strip can be easy to be padded on wire transposition around to the top of bending, the both sides of coil molding stepping bar for symmetrical inclined-plane with line cake
Between, effectively increase the stability and mechanical strength of line cake, it is ensured that product reliability.
The utility model is not limited to above-described embodiment, and embodiment is exemplary, it is intended to for explaining that this practicality is new
Type, and it is not intended that to limitation of the present utility model.
Claims (3)
1. a kind of coil molding stepping bar, it is characterised in that including：Stem portion (7), several be connected with the stem portion (7)
Shape portion (5)；
Several stripes (5) are vertical with the stem portion (7) to be connected, the top of the both sides of the coil molding stepping bar for pair
The inclined-plane of title, the height of the stripes (5) of the both sides of the coil molding stepping bar is gradually reduced from the inside to the outside；Several strips
Provided with the several grooves (6) be arrangeding in parallel between portion (5).
2. coil molding stepping bar according to claim 1, it is characterised in that the stem portion (7) and stripes (5) are
By two layers unsaturated polyester (UP) layer, two layers of phenolic resin glue-line being arranged between two layers of unsaturated polyester (UP) layer and set
Polyester-imide layer and insulating board between two layers of the phenolic resin glue-line are combined into；On the stem portion (7) not
Saturated polyester layer, phenolic resin glue-line, polyester-imide layer are equipped with nested groove with insulating board correspondence same position；The insatiable hunger
Two interlayers adjacent with insulating board with polyester layer, phenolic resin glue-line, polyester-imide layer are mutually embedding by the nested groove
Set；The nested groove is annular.
3. coil molding stepping bar according to claim 2, it is characterised in that the width of the stripes (5) is 21mm, institute
The width for stating groove (6) is 4mm, the bottom 3mm of stem portion (7) described in the distance from bottom of the groove (6).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621342677.4U CN206388600U (en) | 2016-12-08 | 2016-12-08 | Coil molding stepping bar |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201621342677.4U CN206388600U (en) | 2016-12-08 | 2016-12-08 | Coil molding stepping bar |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206388600U true CN206388600U (en) | 2017-08-08 |
Family
ID=59488449
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201621342677.4U Expired - Fee Related CN206388600U (en) | 2016-12-08 | 2016-12-08 | Coil molding stepping bar |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206388600U (en) |
-
2016
- 2016-12-08 CN CN201621342677.4U patent/CN206388600U/en not_active Expired - Fee Related
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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 |
Granted publication date: 20170808 Termination date: 20181208 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |