CN205069314U - Three -phase transformer unshakable in one's determination is rolled up to oval three -dimensional opening - Google Patents
Three -phase transformer unshakable in one's determination is rolled up to oval three -dimensional opening Download PDFInfo
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- CN205069314U CN205069314U CN201520882322.3U CN201520882322U CN205069314U CN 205069314 U CN205069314 U CN 205069314U CN 201520882322 U CN201520882322 U CN 201520882322U CN 205069314 U CN205069314 U CN 205069314U
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Abstract
The utility model discloses a three -phase transformer unshakable in one's determination is rolled up to oval three -dimensional opening, whole transformer core are semioval single frame opening by the three cross -section that each other becomes 120 jiaos and roll up unshakable in one's determination the component, and half elliptical section unshakable in one's determination is rolled up to the single frame opening, and its minor axis central line becomes 60 jiaos with the wide orientation of silicon steel in pieces. The utility model discloses having three -dimensional triangle and rolling up unshakable in one's determinationly, transformer core cross -section filling coefficient is high, material utilization rate unshakable in one's determination is high, reduce indisputable yoke weight, reduce no -load loss, reduce product cost's advantage, can realize again folding transformer coil suit technology unshakable in one's determination, transformer core and coil can carry out synchronized production, make the manufacturing cycle of product shorten, and the coil adopts conventional coiling machine coiling, the equipment less investment, and can realize elliptical section unshakable in one's determination 5 and oval coil 6 and make, reduce product cost, and convenient maintenance. This structure product has been compromise three -dimensional triangle and has been rolled up the iron core transformer and fold the iron core transformer occupy advantages in both *.
Description
Technical field
The utility model relates to transformer, is a kind of new power transformer product structure specifically.
Background technology
Current transformer core is divided into laminated core and rewinding material by manufacture method, wherein Three-dimensional triangle Wound iron-core transformer has the advantage that core section activity coefficient is high, core material utilance is high, reduce iron yoke weight, reduce no-load loss, reduce product cost, but shortcoming is unshakable in one's determination and coil section can only be circular, economy is limited, coil can not be reprocessed, the product manufacturing cycle is long, complex process, special spooling equipment coiling on core limb must be had, need the frock of outfit, mould many, equipment investment is large; And laminated core transformer, coil employing conventional winding machine coiling and suit technique, can realize iron core and coil synchronously manufactures, decrease the manufacturing cycle of product, the simple also convenient for maintaining of technique, existing for reducing costs, the general transformer adopting elliptic cross-section iron core, compare with circular core section transformer, the transformer core activity coefficient of this elliptic cross-section iron core is higher, window and perimeter dimension less, angle unshakable in one's determination heavy and light, and reduce the length of iron yoke, can effectively save silicon steel sheet and copper cash.But compared with three dimensional wound core transformer, the utilance of core material is lower, and core section activity coefficient is lower, high expensive.
Utility model content
For playing the advantage both it, avoiding the deficiency of the two, now inventing a kind of three-dimensional opening roll core three-phase transformer of elliptic cross-section iron core.Concrete technical scheme is as follows:
A kind of elliptic stereo opening roll core three-phase transformer, whole transformer core is that half elliptic single frame opening rewinding material forms by three cross sections being mutually hexagonal angle, the half elliptic cross section of single frame opening rewinding material, its minor axis center line becomes 60 ° of angles with silicon steel blade cross direction.
The major and minor axis ratio in the half elliptic cross section of single frame opening rewinding material is
The major axis in the half elliptic cross section of single frame opening rewinding material and the ratio of minor axis are
Single frame opening rewinding material cross section is external half elliptic polygon, is made up of multistage iron core.
Single frame opening rewinding material is upper and lower " U " character form structure, and every layer of silicon steel sheet opening is two, and adjacent layer silicon steel sheet open seam is multistage step-lap laminated, and two seams unshakable in one's determination are near core limb upper end, and opening is outside coil.
High and low pressure winding is identical with core limb cross sectional shape is ellipse, is sleeved on core limb.
The utility model has the advantages that: there is the advantage that Three-dimensional triangle Wound iron-core transformer core section activity coefficient is high, core material utilance is high, reduce iron yoke weight, adopt annealing process that no-load loss, no-load current, noise are reduced, and reduce product cost, laminated core transformer coil nested technique can be realized again, transformer core and coil can carry out synchronous production, the manufacturing cycle of product is shortened, coil adopts conventional winding machine, decrease frock, the outfit of mould, equipment investment is few, oval unshakable in one's determination and coil manufacture can be realized, improve production efficiency, technique is simple, facilitate product repairing, be not subject to the restriction of product capacity and electric pressure, further reduction product cost, play Wound iron-core transformer and laminated core transformer double dominant, the amplitude that cost reduces is much larger than one of three dimensional wound core transformer and oval both laminated core transformers.
Accompanying drawing explanation
Fig. 1 is the utility model core construction figure;
Fig. 2 is the vertical view of Fig. 1;
Fig. 3 is the utility model single frame core section figure;
Fig. 4 is the utility model three-phase transformer winding and vertical view unshakable in one's determination.
Embodiment
Illustrate the utility model below in conjunction with accompanying drawing, in Fig. 1, core limb cross sectional shape is oval, and minor axis center line and silicon steel sheet 2 cross directions become 60 ° of angles.The curve silicon steel sheet be split into by curve cutting machine is undertaken by automatic moulding machine that every layer of corner unshakable in one's determination flanging is shaping, opening part is sheared, carry out successively plug-in mounting upon opening to form, every layer has two openings, adjacent layer silicon steel sheet open seam is multistage step-lap laminated, and two seams unshakable in one's determination are near core limb upper end.
The external transverse (a) of Fig. 2 single frame core section and minor axis (b), major and minor axis proportion is
when the ratio of major axis and minor axis is
time, weight unshakable in one's determination is minimum, material-saving the most, has actual application value.
Fig. 3 Transformer Winding cross section is oval high-voltage coil and low-voltage coil, is sleeved on oval outside unshakable in one's determination.
As Figure 1-Figure 4, whole transformer core is that half elliptic single frame opening rewinding material 1 forms by three cross sections being mutually hexagonal angle, and the half elliptic cross section 3 of single frame opening rewinding material 1, its minor axis b center line and silicon steel sheet 2 cross directions become 60 ° of angles.
Major axis a and the minor axis b ratio in the half elliptic cross section of single frame opening rewinding material are
Best ratio is: the major axis in the half elliptic cross section of single frame opening rewinding material and the ratio of minor axis are
Single frame opening rewinding material 1 cross section is external half elliptic polygon, is made up of multistage iron core.
Single frame opening rewinding material is upper and lower " U " character form structure, and every layer of silicon steel sheet opening 4 is two, and adjacent layer silicon steel sheet opening 4 seam is multistage step-lap laminated, and two seams unshakable in one's determination are near core limb upper end, and opening is beyond the height H of coil.
Another form of the present utility model is: high and low pressure winding is identical with core limb cross sectional shape is ellipse, is sleeved on core limb.
Transformer core of the present utility model is that half elliptic single frame opening rewinding material 1 forms dress splicing by three cross sections being mutually hexagonal angle, single frame opening rewinding material is upper and lower " U " character form structure, it is the curve silicon steel sheet be split into by curve cutting machine, through automatic moulding machine bending forming, shearing, carry out successively plug-in mounting upon opening to form, every layer has two openings 4, and opening 4 seam is multistage step-lap laminated, and opening 4 is near core limb upper end.The heart column section of transformer core of the present utility model is the polygon of external ellipse, and oval minor axis center line becomes 60 ° of angles with silicon steel blade cross direction, and the ratio getting major axis a and minor axis b is
make that weight unshakable in one's determination is minimum, material-saving the most.Three rolled single frame iron cores are assembled into a three-dimensional opening rewinding material, need annealing in process, eliminate stress unshakable in one's determination, recover magnetic property.Remove upper yoke sheet (from outermost layer), consider that oval coil anti-short circuit capability is poor, existing low-voltage coil is designed to Foil winding, high-voltage coil and low-voltage coil is united around after carry out dipping lacquer process and the process of weakness structural strengthening and improve and bear short-circuit capacity.To be sleeved on outside core limb 5 around complete oval coil 6, plug-in mounting upper yoke sheet again, and to opening part carry out clamping process after, all the other routinely transformer manufacturing method complete the manufacture of the three-dimensional opening roll core three-phase transformer of elliptic cross-section iron core.
Claims (6)
1. an elliptic stereo opening roll core three-phase transformer, it is characterized in that: whole transformer core is that half elliptic single frame opening rewinding material forms by three cross sections being mutually hexagonal angle, the half elliptic cross section of single frame opening rewinding material, its minor axis center line becomes 60 ° of angles with silicon steel blade cross direction.
2. roll core three-phase transformer according to claim 1, is characterized in that: the major and minor axis ratio in the half elliptic cross section of single frame opening rewinding material is
3. roll core three-phase transformer according to claim 1, is characterized in that: the major axis in the half elliptic cross section of single frame opening rewinding material and the ratio of minor axis are
4. roll core three-phase transformer according to claim 1, is characterized in that: single frame opening rewinding material cross section is external half elliptic polygon, is made up of multistage iron core.
5. roll core three-phase transformer according to claim 1, it is characterized in that: single frame opening rewinding material is upper and lower " U " character form structure, every layer of silicon steel sheet opening is two, adjacent layer silicon steel sheet open seam is multistage step-lap laminated, two seams unshakable in one's determination are near core limb upper end, and opening is outside coil.
6. roll core three-phase transformer according to claim 1, is characterized in that: high and low pressure winding is identical with core limb cross sectional shape is ellipse, is sleeved on core limb.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520882322.3U CN205069314U (en) | 2015-11-09 | 2015-11-09 | Three -phase transformer unshakable in one's determination is rolled up to oval three -dimensional opening |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520882322.3U CN205069314U (en) | 2015-11-09 | 2015-11-09 | Three -phase transformer unshakable in one's determination is rolled up to oval three -dimensional opening |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205069314U true CN205069314U (en) | 2016-03-02 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520882322.3U Expired - Fee Related CN205069314U (en) | 2015-11-09 | 2015-11-09 | Three -phase transformer unshakable in one's determination is rolled up to oval three -dimensional opening |
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|---|---|
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Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107845491A (en) * | 2017-10-31 | 2018-03-27 | 正泰电气股份有限公司 | A kind of three-phase stereo closed assembly formula transformer core and its design method |
| CN110136933A (en) * | 2019-06-24 | 2019-08-16 | 江苏五洲电力科技有限公司 | A kind of three-phase stereo non-circular openings formula rewinding material structure |
| CN110136934A (en) * | 2019-06-24 | 2019-08-16 | 江苏五洲电力科技有限公司 | A kind of non-circular structure of transformer body of three-phase stereo |
| CN111477451A (en) * | 2020-05-29 | 2020-07-31 | 重庆望变电气（集团）股份有限公司 | Assembly process of folding iron core and coil of dry-type transformer |
| CN111477452A (en) * | 2020-05-29 | 2020-07-31 | 重庆望变电气（集团）股份有限公司 | Production process of folding iron core for dry-type transformer |
-
2015
- 2015-11-09 CN CN201520882322.3U patent/CN205069314U/en not_active Expired - Fee Related
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107845491A (en) * | 2017-10-31 | 2018-03-27 | 正泰电气股份有限公司 | A kind of three-phase stereo closed assembly formula transformer core and its design method |
| CN110136933A (en) * | 2019-06-24 | 2019-08-16 | 江苏五洲电力科技有限公司 | A kind of three-phase stereo non-circular openings formula rewinding material structure |
| CN110136934A (en) * | 2019-06-24 | 2019-08-16 | 江苏五洲电力科技有限公司 | A kind of non-circular structure of transformer body of three-phase stereo |
| CN110136934B (en) * | 2019-06-24 | 2024-06-21 | 江苏五洲电力科技有限公司 | Three-phase three-dimensional noncircular transformer body structure |
| CN111477451A (en) * | 2020-05-29 | 2020-07-31 | 重庆望变电气（集团）股份有限公司 | Assembly process of folding iron core and coil of dry-type transformer |
| CN111477452A (en) * | 2020-05-29 | 2020-07-31 | 重庆望变电气（集团）股份有限公司 | Production process of folding iron core for dry-type 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 |
Granted publication date: 20160302 Termination date: 20191109 |
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| CF01 | Termination of patent right due to non-payment of annual fee |