CN220710096U - Dry-type transformer structure for simplifying realization of multiple voltage outputs - Google Patents
Dry-type transformer structure for simplifying realization of multiple voltage outputs Download PDFInfo
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- CN220710096U CN220710096U CN202322421022.2U CN202322421022U CN220710096U CN 220710096 U CN220710096 U CN 220710096U CN 202322421022 U CN202322421022 U CN 202322421022U CN 220710096 U CN220710096 U CN 220710096U
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- voltage winding
- clamping piece
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- 238000004804 winding Methods 0.000 claims abstract description 70
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 43
- 230000017525 heat dissipation Effects 0.000 claims abstract description 11
- 239000004020 conductor Substances 0.000 claims abstract description 7
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 18
- 229910052802 copper Inorganic materials 0.000 claims description 15
- 239000010949 copper Substances 0.000 claims description 15
- 239000010410 layer Substances 0.000 claims description 11
- 239000011888 foil Substances 0.000 claims description 10
- 239000012212 insulator Substances 0.000 claims description 8
- 230000003014 reinforcing effect Effects 0.000 claims description 7
- 229910052742 iron Inorganic materials 0.000 claims description 6
- 239000011889 copper foil Substances 0.000 claims description 3
- 239000011229 interlayer Substances 0.000 claims description 3
- 239000011347 resin Substances 0.000 claims description 3
- 229920005989 resin Polymers 0.000 claims description 3
- 230000009286 beneficial effect Effects 0.000 abstract description 2
- WABPQHHGFIMREM-UHFFFAOYSA-N lead(0) Chemical compound [Pb] WABPQHHGFIMREM-UHFFFAOYSA-N 0.000 description 6
- 238000010586 diagram Methods 0.000 description 3
- 229910000808 amorphous metal alloy Inorganic materials 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
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- Coils Of Transformers For General Uses (AREA)
Abstract
The utility model discloses a dry-type transformer structure for simplifying and realizing multi-voltage output, which comprises an iron core, a low-voltage winding sleeved on the iron core and a high-voltage winding sleeved outside the low-voltage winding, and is characterized in that: each coil of the low-voltage winding is an integral body and is wound by a conductor, a plurality of coils of heat dissipation air passages are added in order to dissipate heat, and the low-voltage winding is divided into a plurality of coils; one or more taps are additionally arranged at the upper end or the lower end of the low-voltage winding to form different voltage lead-out leads, so that the tap leads with corresponding voltages are connected according to different voltage requirements, the low-voltage winding can output two or more similar voltages, and tap positions corresponding to different voltages are calculated according to the turns of different voltages. The transformer has the beneficial effects that the design is mainly applied to various voltage outputs of the transformer, the applicability of the transformer is improved, and the same transformer can meet the requirements of two or more output voltages.
Description
Technical Field
The utility model belongs to the technical field of transformers, and relates to a dry type transformer structure for simplifying realization of multi-voltage output.
Background
At present, the market of transformers is increasingly expanded, and under the condition that manufacturers are continuously increased, only the product structure is continuously optimized, the cost performance of the product is improved, the market initiative can be better occupied, and the product competitiveness is improved.
Because of the complexity of the electrical equipment, the voltage requirements are more accurate and complex, and if the user requires two or more voltages of 0.4kV, 0.5kV, 0.69kV and the like, the cost is increased greatly if the transformer is manufactured into a multi-turn transformer.
Disclosure of Invention
In order to make up for the defects of the prior art, the utility model provides a dry type transformer structure for simplifying the realization of multi-voltage output, one or more lead-out copper bars are added to a low-voltage winding of the dry type transformer, and two or more voltage grades are output at low voltage.
The utility model is realized by the following technical scheme:
the utility model provides a simplify dry-type transformer structure who realizes many voltage output, includes the iron core, overlaps the low-voltage winding on the iron core, overlaps the high-voltage winding in the low-voltage winding outside, characterized by: the head lead and the tail lead of the low-voltage winding are positioned at the upper end or the lower end of the winding and are respectively connected with a head lead copper bar and a tail lead copper bar, which are fixedly connected with each other through insulators and are fixed on an upper clamping piece through insulator brackets, and copper bars are used for connecting the low-voltage windings of all phases;
each coil of the low-voltage winding is an integral body and is wound by a conductor, and a plurality of circles of vertical heat dissipation air passages are added in order to dissipate heat of the low-voltage winding, so that the low-voltage winding is divided into a plurality of coils;
one or more taps are additionally arranged at the upper end or the lower end of the low-voltage winding to form different voltage lead-out leads, so that the tap leads with corresponding voltages are connected according to different voltage requirements, the low-voltage winding can output two or more similar voltages, and tap positions corresponding to different voltages are calculated according to the turns of different voltages.
The upper iron yoke of the iron core is clamped into the groove of the upper clamping piece, the lower iron yoke is clamped into the groove of the lower clamping piece, and the upper clamping piece is fixedly connected with the horizontal flanging at the outer side of the lower clamping piece through a vertical tension screw rod, so that the iron core is firmly fixed;
a plurality of reinforcing plates are welded on the outer sides of the upper clamping piece and the lower clamping piece respectively, and mounting holes for mounting other parts are formed in the reinforcing plates;
insulating pads are respectively filled between the iron core and the upper clamping piece and between the iron core and the lower clamping piece, rubber seals are stuck at the upper end and the lower end of the iron core, and the iron core and the insulating pads are stuck together.
The bottom of the lower clamping piece is fixed on the lower bottom plate through bolts, a heightening plate is arranged between the lower clamping piece and the lower bottom plate in a cushioning mode, and an insulating pad is arranged between the heightening plate and the lower bottom plate in a cushioning mode.
The low-voltage winding adopts a foil winding which is formed by winding a conductor copper foil and an interlayer insulating layer together in a way of one turn, wherein the upper end insulating layer and the lower end insulating layer are formed by pouring resin; an inner insulating plate and an outer insulating plate are respectively attached to the inner side and the outer side of the foil winding; the foil winding is internally provided with a plurality of heat dissipation air passages which are vertically communicated with each other, the low-voltage winding is divided into a plurality of parts, and a plurality of air passage stay bars are uniformly arranged in the heat dissipation air passages.
The utility model has the beneficial effects that the tap mode is adopted, the low-voltage winding number is changed, and a plurality of head leads are adopted to lead the low-voltage side to output a plurality of voltage grades, so that one transformer is simply realized for two or more different voltage outputs. The manufacturing cost is saved, purchasing funds are saved for users, and the adaptability of the transformer is better. Is applied to all distribution transformers.
Drawings
The attached drawing is a schematic structural diagram of the utility model.
Fig. 1 is a front view of a low-voltage winding, fig. 2 is a tap schematic diagram of the low-voltage winding, fig. 3 is a tap voltage gear of the low-voltage winding, fig. 4 is a combined structure diagram of an iron core, the low-voltage winding and the high-voltage winding, fig. 5 is a top view of fig. 1, fig. 6 is a left view of the iron core, and fig. 7 is an enlarged view of a lower portion of fig. 6.
In the figure, an iron core 1, a low-voltage winding 2, a high-voltage winding 3, a head lead copper bar 4, a tail lead copper bar 5, an insulator 6, an insulator bracket 7, an upper clamping piece 8, a heat dissipation air passage 9, a tap lead 10, a lower clamping piece 11, a horizontal flanging 12, a tension screw 13, a reinforcing plate 14 and a mounting hole 15; a rubber seal 16, an insulating pad 17, a lower bottom plate 18, a heightening plate 19 and a lower insulating layer 20; an inner insulating plate 21, an outer insulating plate 22, airway struts 23, and an upper insulating layer 24.
Detailed Description
The drawings illustrate one embodiment of the utility model.
The utility model discloses a dry-type transformer structure for simplifying and realizing multi-voltage output, which comprises an iron core 1, a low-voltage winding 2 sleeved on the iron core, and a high-voltage winding 3 sleeved outside the low-voltage winding, wherein a head lead wire and a tail lead wire of the low-voltage winding are positioned at the upper end or the lower end of the winding and are respectively connected with a head lead wire copper bar 4 and a tail lead wire copper bar 5, the head lead wire copper bar 4 and the tail lead wire copper bar are fixedly connected with each other through an insulator 6 and are fixed on an upper clamping piece 8 through an insulator bracket 7, and the connection between the low-voltage windings of all phases is realized by adopting copper bars;
each coil of the low-voltage winding 2 is an integral body and is wound by a conductor, and a plurality of circles of vertical heat dissipation air passages 9 are added in order to dissipate heat of the low-voltage winding, so that the low-voltage winding is divided into a plurality of coils;
one or more taps are additionally arranged at the upper end or the lower end of the low-voltage winding 2 to form different voltage lead-out leads, so that the tap leads 10 with corresponding voltages are connected according to different voltage requirements, the low-voltage winding can output two or more similar voltages, and tap positions corresponding to different voltages are calculated according to the turns of different voltages.
The upper iron yoke of the iron core 1 is clamped into the groove of the upper clamping piece 8, the lower iron yoke is clamped into the groove of the lower clamping piece 11, and the upper clamping piece is fixedly connected with the horizontal flanging 12 on the outer side of the lower clamping piece through a vertical tension screw 13, so that the iron core is firmly fixed;
a plurality of reinforcing plates 14 are welded on the outer sides of the upper clamping piece 8 and the lower clamping piece 11 respectively, and mounting holes 15 for mounting other parts are formed in the reinforcing plates;
insulating pads 17 are respectively arranged between the iron core and the upper clamping piece and between the iron core and the lower clamping piece. Rubber seals 16 are adhered to the upper and lower ends of the iron core 1 to adhere the iron core and the insulating pad together.
The bottom of the lower clamping piece 11 is fixed on the lower bottom plate 18 through bolts, a heightening plate 19 is arranged between the lower clamping piece and the lower bottom plate, and an insulating pad 17 is arranged between the heightening plate and the lower bottom plate.
The low-voltage winding adopts a foil winding which is formed by winding a conductor copper foil and an interlayer insulating layer together in a way of one turn, wherein the upper end insulating layer 24 and the lower end insulating layer 20 are formed by pouring resin at the upper end and the lower end of the foil winding; an inner insulating plate 21 and an outer insulating plate 22 are respectively attached to the inner side and the outer side of the foil winding; the foil winding is internally provided with a plurality of heat dissipation air passages 9 which are penetrated up and down, the low-voltage winding is divided into a plurality of parts, and a plurality of air passage stay bars 23 are uniformly arranged in the heat dissipation air passages 9.
The iron core adopts an amorphous alloy iron core.
The low-voltage winding is added with one or more lead-out copper bars to output two or more voltage grades. Replace the technology of partial traditional three or more low-voltage coil transformers and improve the applicability of the transformer.
When the tap position of the low-voltage winding is determined, the number of low-voltage turns which can be shared by two or more voltages is calculated, the corresponding number of low-voltage turns is calculated, then the first head a1 is led out after the number of turns corresponding to the low-voltage turns is wound, and then the second head a2 is led out after the phase difference turns of the two voltages are continuously wound. The design adopts two heads or a plurality of output voltages by changing the number of turns of low voltage. In this way, one transformer can be implemented for two or more different voltage outputs.
Claims (4)
1. The utility model provides a simplify dry-type transformer structure who realizes many voltage output, includes the iron core, overlaps the low-voltage winding on the iron core, overlaps the high-voltage winding in the low-voltage winding outside, characterized by: the head lead and the tail lead of the low-voltage winding are positioned at the upper end or the lower end of the winding and are respectively connected with a head lead copper bar and a tail lead copper bar, which are fixedly connected with each other through insulators and are fixed on an upper clamping piece through insulator brackets, and copper bars are used for connecting the low-voltage windings of all phases;
each coil of the low-voltage winding is an integral body and is wound by a conductor, and a plurality of circles of vertical heat dissipation air passages are added in order to dissipate heat of the low-voltage winding, so that the low-voltage winding is divided into a plurality of coils;
one or more taps are additionally arranged at the upper end or the lower end of the low-voltage winding to form different voltage lead-out leads, so that the tap leads with corresponding voltages are connected according to different voltage requirements, the low-voltage winding can output two or more similar voltages, and tap positions corresponding to different voltages are calculated according to the turns of different voltages.
2. The dry-type transformer structure for simplifying realization of multiple voltage outputs according to claim 1, wherein: the upper iron yoke of the iron core is clamped into the groove of the upper clamping piece, the lower iron yoke is clamped into the groove of the lower clamping piece, and the upper clamping piece is fixedly connected with the horizontal flanging at the outer side of the lower clamping piece through a vertical tension screw rod, so that the iron core is firmly fixed;
a plurality of reinforcing plates are welded on the outer sides of the upper clamping piece and the lower clamping piece respectively, and mounting holes for mounting other parts are formed in the reinforcing plates;
insulating pads are respectively arranged between the iron core and the upper clamping piece and between the iron core and the lower clamping piece; rubber seals are adhered to the upper and lower ends of the iron core to adhere the iron core and the insulating pad together.
3. The dry-type transformer structure for simplifying realization of multiple voltage outputs according to claim 2, wherein: the bottom of the lower clamping piece is fixed on the lower bottom plate through bolts, a heightening plate is arranged between the lower clamping piece and the lower bottom plate in a cushioning mode, and an insulating pad is arranged between the heightening plate and the lower bottom plate in a cushioning mode.
4. The dry-type transformer structure for simplifying realization of multiple voltage outputs according to claim 1 or 2, wherein: the low-voltage winding adopts a foil winding which is formed by winding a conductor copper foil and an interlayer insulating layer together in a way of one turn, wherein the upper end insulating layer and the lower end insulating layer are formed by pouring resin; an inner insulating plate and an outer insulating plate are respectively attached to the inner side and the outer side of the foil winding; the foil winding is internally provided with a plurality of heat dissipation air passages which are vertically communicated with each other, the low-voltage winding is divided into a plurality of parts, and a plurality of air passage stay bars are uniformly arranged in the heat dissipation air passages.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322421022.2U CN220710096U (en) | 2023-09-07 | 2023-09-07 | Dry-type transformer structure for simplifying realization of multiple voltage outputs |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202322421022.2U CN220710096U (en) | 2023-09-07 | 2023-09-07 | Dry-type transformer structure for simplifying realization of multiple voltage outputs |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220710096U true CN220710096U (en) | 2024-04-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202322421022.2U Active CN220710096U (en) | 2023-09-07 | 2023-09-07 | Dry-type transformer structure for simplifying realization of multiple voltage outputs |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220710096U (en) |
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2023
- 2023-09-07 CN CN202322421022.2U patent/CN220710096U/en active Active
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