CN203690058U - Novel high-voltage transformer for tunnel - Google Patents
Novel high-voltage transformer for tunnel Download PDFInfo
- Publication number
- CN203690058U CN203690058U CN201420024740.4U CN201420024740U CN203690058U CN 203690058 U CN203690058 U CN 203690058U CN 201420024740 U CN201420024740 U CN 201420024740U CN 203690058 U CN203690058 U CN 203690058U
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- voltage
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- transformer
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Abstract
The utility model discloses a novel high-voltage transformer for a tunnel, and relates to the technical field of transformers. The novel high-voltage transformer comprises an iron core, a low-voltage coil and a high-voltage coil, wherein the low-voltage coil winds the outer wall of the iron core and the high-voltage coil winds the outer side of the low-voltage coil. The novel high-voltage transformer is characterized in that the ratio of the length to the width of the iron core is 2.2; the low-voltage coil comprises four sets of independent sub low-voltage coils; the high-voltage coil comprises four sets of sub high-voltage coils connected in series in sequence; eight low-voltage binding posts of the four sets of sub low-voltage coils are arranged at the top end of the high-voltage transformer; two high-voltage binding posts of the high-voltage coils are arranged on the side wall of the high-voltage transformer. The novel high-voltage transformer has the advantages of being high in safety coefficient and good in heat dissipation performance.
Description
Technical field
The utility model relates to transformer technology field, particularly relates to a kind of novel tunnel high-tension transformer.
Background technology
As everyone knows; transformer is one of electric equipment often using in people's production process; at present; the Aspect Ratio of conventional high-tension transformer core is 1.2 left and right; and its high-tension coil and low-voltage coil are a whole coil; in the process using, find; the high-tension coil of this conventional high-tension transformer is in the process of coiling; due to tightr between circle line; therefore often can there is the phenomenon of turn-to-turn short circuit; meanwhile, the heat that highdensity winding also very easily causes high-tension transformer to produce cannot be derived quickly.
Utility model content
The technical problems to be solved in the utility model is: provide that a kind of coefficient of safety is high, the novel tunnel high-tension transformer of perfect heat-dissipating.
The technical scheme that the utility model is taked for the technical problem existing in solution known technology is:
A kind of novel tunnel high-tension transformer, comprises iron core, is around in the low-voltage coil of described outer wall unshakable in one's determination and is around in the high-tension coil in described low-voltage coil outside; It is characterized in that: the Aspect Ratio of described iron core is 2.2; Described low-voltage coil comprises four groups of independently sub-low-voltage coils; Described high-tension coil comprises four groups of sub-high-tension coils, series connection successively between described four groups of sub-high-tension coils; Eight low-voltage wiring terminals of above-mentioned four groups of sub-low-voltage coils are arranged at the top of high-tension transformer; Two high-voltage connection terminals of above-mentioned high-tension coil are arranged at the sidewall of high-tension transformer.
As optimal technical scheme, the utility model has also adopted following technical characterictic:
On two terminals of described high-tension coil, be provided with protective cover.
Wrap and be cast with first ring epoxy layer at the line of described high-tension transformer.
There is the second epoxy resin layer at described high-tension transformer upper.
Advantage and the good effect that the utlity model has are: by adopting technique scheme, the utility model is that Aspect Ratio is 2.2 by the Core Design of conventional high-tension transformer, adopt four groups of sub-high-tension coils to be composed in series one group of traditional high-tension coil simultaneously, one group of traditional low-voltage coil is adopted to four groups of sub-low-voltage coil compositions; Therefore increased the turn-to-turn distance of high-tension coil, reduced the turn-to-turn short circuit probability of high-tension coil, improved the heat dispersion of high-tension transformer simultaneously, four groups of low-voltage coils also provide eight low-voltage output, make the mode of connection more various.Owing to being provided with protective cover on two terminals of high-tension coil, can further improve the coefficient of safety of high-tension transformer.
Brief description of the drawings
Fig. 1 is front view of the present utility model;
Fig. 2 is cutaway view of the present utility model;
Fig. 3 is left view of the present utility model.
Wherein: 1, low-voltage wiring terminal; 2, high-voltage connection terminal; 3, iron core; 4, low-voltage coil; 5, high-tension coil; 6, protective cover.
Embodiment
For further understanding utility model content of the present utility model, Characteristic, hereby exemplify following examples, and coordinate accompanying drawing to be described in detail as follows:
Refer to Fig. 1, Fig. 2 and Fig. 3, a kind of novel tunnel high-tension transformer, comprise that Aspect Ratio is 2.2 iron cores 3, in the actual course of processing, unshakable in one's determination 3 Aspect Ratio scope preferably ensures between 2.1～2.3, outer wall unshakable in one's determination 3 is wound with low-voltage coil 4, and low-voltage coil 4 comprises four groups of independently sub-low-voltage coils, and eight low-voltage wiring terminals 1 of above-mentioned four groups of sub-low-voltage coils are arranged at the top of high-tension transformer; Be wound with high-tension coil 5 in the outside of low-voltage coil 4, high-tension coil 5 comprises four groups of sub-high-tension coils, series connection successively between above-mentioned four groups of sub-high-tension coils, and two high-voltage connection terminals 2 of high-tension coil 5 are arranged at the sidewall of high-tension transformer; This specific embodiment is provided with protective cover 6 on two terminals of high-tension coil 5; Protective cover 6 is made by having high insulating material, and protective cover 6 is provided with the groove matching with high-voltage connection terminal 2 profiles, when use, protective cover 6 is buckled in to high-voltage connection terminal 2.In order to improve the security performance of high-tension transformer, this preferred embodiment at high-tension coil 5 and low-voltage coil 4 after layer completes, to the line bag cast first ring epoxy layer of high-tension transformer.Integrated poured the second epoxy resin layer after high-tension transformer has been assembled.Two high-voltage connection terminals 2 in this specific embodiment are to put in advance before the second epoxy resin layer cast, only expose terminal screw after cast, and protective cover 6 is buckled on above-mentioned screw.
Above embodiment of the present utility model is had been described in detail, but described content is only preferred embodiment of the present utility model, can not be considered to for limiting practical range of the present utility model.All equalizations of doing according to the utility model application range change and improve, within all should still belonging to patent covering scope of the present utility model.
Claims (4)
1. a novel tunnel high-tension transformer, comprises iron core, is around in the low-voltage coil of described outer wall unshakable in one's determination and is around in the high-tension coil in described low-voltage coil outside; It is characterized in that: the Aspect Ratio of described iron core is 2.2; Described low-voltage coil comprises four groups of independently sub-low-voltage coils; Described high-tension coil comprises four groups of sub-high-tension coils, series connection successively between described four groups of sub-high-tension coils; Eight low-voltage wiring terminals of above-mentioned four groups of sub-low-voltage coils are arranged at the top of high-tension transformer; Two high-voltage connection terminals of above-mentioned high-tension coil are arranged at the sidewall of high-tension transformer.
2. novel tunnel high-tension transformer according to claim 1, is characterized in that: on two terminals of described high-tension coil, be provided with protective cover.
3. novel tunnel high-tension transformer according to claim 1, is characterized in that: wrap and be cast with first ring epoxy layer at the line of described high-tension transformer.
4. according to novel tunnel high-tension transformer described in claim 1-3 any one, it is characterized in that: have the second epoxy resin layer at described high-tension transformer upper.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420024740.4U CN203690058U (en) | 2014-01-15 | 2014-01-15 | Novel high-voltage transformer for tunnel |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420024740.4U CN203690058U (en) | 2014-01-15 | 2014-01-15 | Novel high-voltage transformer for tunnel |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203690058U true CN203690058U (en) | 2014-07-02 |
Family
ID=51011932
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420024740.4U Expired - Fee Related CN203690058U (en) | 2014-01-15 | 2014-01-15 | Novel high-voltage transformer for tunnel |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203690058U (en) |
-
2014
- 2014-01-15 CN CN201420024740.4U patent/CN203690058U/en not_active Expired - Fee Related
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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: 20140702 Termination date: 20190115 |