CN117672691A - Dry-type power transformer - Google Patents
Dry-type power transformer Download PDFInfo
- Publication number
- CN117672691A CN117672691A CN202410133404.1A CN202410133404A CN117672691A CN 117672691 A CN117672691 A CN 117672691A CN 202410133404 A CN202410133404 A CN 202410133404A CN 117672691 A CN117672691 A CN 117672691A
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- China
- Prior art keywords
- copper bar
- tapping terminal
- tapping
- limiting
- power transformer
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- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims abstract description 70
- 229910052802 copper Inorganic materials 0.000 claims abstract description 70
- 239000010949 copper Substances 0.000 claims abstract description 70
- 238000010079 rubber tapping Methods 0.000 claims abstract description 63
- 238000004804 winding Methods 0.000 claims abstract description 6
- 230000000712 assembly Effects 0.000 claims description 4
- 238000000429 assembly Methods 0.000 claims description 4
- 230000005540 biological transmission Effects 0.000 abstract description 2
- 230000009466 transformation Effects 0.000 abstract description 2
- 230000001105 regulatory effect Effects 0.000 description 7
- 230000033001 locomotion Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006835 compression Effects 0.000 description 1
- 238000007906 compression Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Connections Arranged To Contact A Plurality Of Conductors (AREA)
Abstract
The utility model relates to a power transmission and transformation equipment technical field discloses a dry-type power transformer, including tapping terminal, copper bar connects two tapping terminals and can change the effective turns of winding, the both sides of copper bar all are connected with the locating part, the locating part passes through spliced pole and copper bar threaded connection, makes the locating part of one side remove towards tapping terminal when the copper bar rotates, and tapping terminal is kept away from to the locating part of opposite side, be equipped with spherical arch and spherical recess between tapping terminal and the copper bar respectively. The tapping terminal and the pressing plate of the dry power transformer form a round table, the height of the tapping terminal is reduced, the structural strength of the tapping terminal is kept at a higher level, meanwhile, the copper bars and the limiting pieces are pressed on the tapping terminal by pressure, and the structural integrity of the tapping terminal is further guaranteed. Secondly, when adjusting voltage gear, three phases are adjusted simultaneously, so that the consistency of the three phases is ensured, and under the constraint of a limiting piece and a locating rack, the gear-by-gear adjustment can be realized, and the reliability of gear adjustment can be ensured.
Description
Technical Field
The application relates to the technical field of power transmission and transformation equipment, in particular to a dry type power transformer.
Background
The transformer is usually provided with voltage regulating tap terminals, and the effective number of turns of the transformer winding can be changed by connecting different voltage regulating tap terminals through copper bars, so that the output voltage is regulated. Generally, the voltage-regulating tapping terminal is usually disposed at a high voltage side, so that the height of the round table of the voltage-regulating tapping terminal needs to be high enough to avoid the creepage phenomenon on the surface of the transformer, and the strength of the round table is low, and when the copper bar is regulated each time, the process of tightening and loosening the bolt may cause the round table to generate cracks, so that the output voltage of the transformer is unstable, and the operation of electrical equipment is affected.
Many factories generally configure transformers by themselves, but many factories are not very specialized in management of the transformers, when the gear of the transformers is adjusted, the phenomenon that the gears of all phases are inconsistent or copper bars of one phase are not screwed up may occur, so that voltages of all phases are inconsistent, the operation of electric appliances is unbalanced, power consumption is increased, and electric appliance faults are caused when serious.
Disclosure of Invention
The utility model provides a dry-type power transformer, tapping terminal and clamp plate constitute the round platform, have reduced tapping terminal's height, make tapping terminal's structural strength keep higher level simultaneously when adjusting voltage gear, three-phase adjustment simultaneously, guarantee its uniformity.
In order to achieve the above purpose, the present application adopts the following technical scheme: the dry-type power transformer comprises a bracket and copper bars, wherein a high-voltage coil and a low-voltage coil are arranged on the bracket, one side of the high-voltage coil is provided with tapping terminals, the copper bars are connected with two tapping terminals to change the effective turns of windings, the bracket is fixedly connected with a positioning frame through a connecting frame, the positions of the positioning frames corresponding to the copper bars are movably connected with a sliding block assembly, the sliding block assembly can push the copper bars to rotate, two sides of the copper bars are connected with limiting pieces, the limiting pieces are in threaded connection with the copper bars through connecting posts, when the copper bars rotate, the limiting pieces on one side move towards the tapping terminals, the limiting pieces on the other side are far away from the tapping terminals, the limiting pieces can be tightly attached to the bottoms of the positioning frame when being far away from the tapping terminals, and spherical protrusions and spherical grooves are respectively arranged between the tapping terminals and the copper bars;
the copper bar presses the tapping terminal when the pressing piece applies pressure to the limiting piece, and the copper bar can slide out of the tapping terminal when the pressing piece does not apply pressure to the limiting piece.
Further, the three slide block components are connected with the same adjusting rod.
Further, the compressing element is a quick-release rod, the compressing element penetrates through the adjusting rod and the connecting frame, when the compressing element is tensioned, the adjusting rod is close to the tapping terminal and then transmits pressure to the limiting element through the sliding block assembly, when the compressing element is released, the limiting element does not apply pressure to the copper bar, the connecting frame is provided with a second sliding groove, and the end part of the compressing element penetrates through the second sliding groove and slides in the connecting frame.
Further, the top of locating part is equipped with the elastic pad of precompaction, and elastic pad and locating part fixed connection, the elastic pad hugs closely the bottom of locating rack.
Further, the locating part is including two sets of clamp plates and limiting plate, and a parallelogram is constituteed to two sets of clamp plates and limiting plate, and one of them clamp plate and copper bar fixed connection, the spliced pole is equipped with four sets of, respectively with four tip fixed connection of clamp plate, four tip fixedly connected with adjusting sleeve of limiting plate, spliced pole and adjusting sleeve threaded connection.
Further, the copper bar is arranged at the top of the pressing plate and is connected with the spherical protrusion through the conductive column.
Further, the bottom of locating rack is equipped with spacing arch, and spacing arch pastes the inboard of limiting plate.
Further, the slider subassembly includes the slider, slider and regulation pole fixed connection, the bottom fixedly connected with briquetting of slider, the slider all is equipped with the push rod corresponding to the both sides of clamp plate, and the briquetting can compress tightly two clamp plates simultaneously.
The invention has the beneficial effects that:
the utility model provides a dry-type power transformer, tapping terminal and clamp plate constitute the round platform, on the one hand, have reduced tapping terminal's height, make tapping terminal's structural strength keep higher level, guarantee its reliability, on the other hand, copper bar and locating part are pressed on tapping terminal by the pressure, when guaranteeing the connection reliability, guarantee tapping terminal's atress more controllable, further guarantee tapping terminal's structural integrity.
Secondly, when adjusting voltage gear, three phases are adjusted simultaneously, the consistency of the three phases is guaranteed, under the constraint of a limiting piece and a locating rack, the gear-by-gear adjustment can be realized, the reliability of gear adjustment can be guaranteed, and meanwhile, the reliability of electric connection can be guaranteed due to the pressure provided by an adjusting rod and a pressing piece.
Drawings
The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments disclosed herein and, together with the description, serve to explain the principles of the embodiments disclosed herein.
Embodiments disclosed herein may be more clearly understood from the following detailed description taken in conjunction with the accompanying drawings, in which:
FIG. 1 is a schematic diagram of the structure of the present invention;
FIG. 2 is a schematic view of a copper bar compression tap terminal according to the present invention;
FIG. 3 is a schematic view of a stop and slider assembly of the present invention;
FIG. 4 is a schematic view of a stop member and tap terminal of the present invention;
FIG. 5 is a side view of the slider assembly of the present invention.
In the figure: 1. a bracket; 2. a high voltage coil; 3. a low voltage coil; 4. a tap terminal; 5. a copper bar; 6. a limiting piece; 61. adjusting the sleeve; 62. a pressing plate; 63. a limiting plate; 7. a slider assembly; 71. a slide block; 72. briquetting; 73. a push rod; 8. a positioning frame; 9. an adjusting rod; 10. a pressing member; 11. a connecting frame; 12. a connecting column; 13. an elastic pad; 14. spherical protrusions; 15. a spherical groove; 16. and a second chute.
Detailed Description
The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all, of the embodiments of the present application. All other embodiments, which can be made by one of ordinary skill in the art based on the embodiments herein without making any inventive effort, are intended to be within the scope of the present application.
Example 1
Referring to fig. 1 and 2, a dry-type power transformer includes a support 1 and a copper bar 5, wherein the support 1 is provided with a high-voltage coil 2 and a low-voltage coil 3, the high-voltage coil 2 and the low-voltage coil 3 are coaxially arranged, one side of the high-voltage coil 2 is provided with tapping terminals 4, the tapping terminals 4 are provided with two rows, one row is slightly higher, three adjacent tapping terminals 4 form an isosceles triangle, the copper bar 5 is connected with the two tapping terminals 4, and then the effective number of turns of windings is changed, the connection mode of the tapping terminals 4 and a wire cake in the high-voltage coil 2 is the prior art, and the embodiment does not describe the details.
The bracket 1 is fixedly connected with the positioning frame 8 through the connecting frame 11, the position of the positioning frame 8 corresponding to each copper bar 5 is movably connected with the sliding block assembly 7, the position of the positioning frame 8 corresponding to each high-voltage coil 2 is provided with a vertical sliding groove, the sliding block assembly 7 slides in the sliding groove, the sliding block assembly 7 can push the copper bars 5 to rotate, the two sides of the copper bars 5 are connected with the limiting pieces 6, the limiting pieces 6 are in threaded connection with the copper bars 5 through the connecting posts 12, the limiting pieces 6 on one side move towards the tapping terminal 4 when the copper bars 5 rotate, the limiting pieces 6 on the other side are far away from the tapping terminal 4, the bottom of the positioning frame 8 can be tightly attached when the limiting pieces 6 are far away from the tapping terminal 4, the spherical protrusions 14 and the spherical grooves 15 are respectively arranged between the tapping terminal 4 and the copper bars 5, the spherical protrusions 14 and the spherical grooves 15 are matched, the connecting area is increased, and the limiting capacity is also high, the bottom of the spherical groove 15 is provided with an elastic copper sheet which is electrically connected with the tapping of the winding, the copper sheet is not jointed with the spherical groove 15, when the spherical bulge 14 is pressed into the spherical groove 15, the copper sheet is jointed with the spherical groove 15 under the pressure of the spherical bulge 14, so that the spherical bulge 14 and the copper sheet are fully contacted and pressed, as the spacing between the locating rack 8 and the tapping terminal 4 is fixed, when the spacing piece 6 is far away from the tapping terminal 4, the overall thickness of the copper bar 5 and the spacing piece 6 is increased, the spherical bulge 14 is tightly clung to the spherical groove 15, the spherical bulge 14 can slide out from the spherical groove 15 with larger force, when the spacing piece 6 is close to the tapping terminal 4, the overall thickness of the copper bar 5 and the spacing piece 6 is reduced, the spherical bulge 14 can leave the spherical groove 15, namely, along with the movement of the copper bar 5, the connection on one side is always kept not separated, and the other side is separated, the copper bar 5 rotates along one side when being stressed, so that gear adjustment is realized.
The copper bar 5 presses the tapping terminal 4 when the pressing piece 10 applies pressure to the limiting piece 6, the connection reliability of the copper bar 5 and the tapping terminal 4 is ensured, and the copper bar 5 can slide out of the tapping terminal 4 when the pressing piece 10 does not apply pressure to the limiting piece 6
The three slider assemblies 7 are connected with the same adjusting rod 9, the adjusting rod 9 is pushed to enable the slider assemblies 7 to synchronously move, the pressing piece 10 is a quick-release rod, the pressing piece 10 penetrates through the adjusting rod 9 and the connecting frame 11, when the handle rotates, the handle is tensioned or released, the adjusting rod 9 is close to the tapping terminal 4 and then transmits pressure to the limiting piece 6 through the slider assemblies 7, the copper bar 5 presses the tapping terminal 4, when the handle is released, the limiting piece 6 does not apply pressure to the copper bar 5, the connecting frame 11 is provided with a second sliding groove 16, the end portion of the pressing piece 10 penetrates through the second sliding groove 16 and slides in the connecting frame 11, the pressing piece 10 does not slide out of the connecting frame 11, and the pressing piece 10 moves along with the adjusting rod 9 and slides on the second sliding groove 16.
The top of locating part 6 is equipped with the elastic pad 13 of precompaction, and elastic pad 13 and locating part 6 fixed connection, and elastic pad 13 hugs closely the bottom of locating rack 8, even locating part 6 does not exert pressure to copper bar 5, also can make copper bar 5 paste on tapping terminal 4 under the pressure of locating part 6, on the one hand, the shrink of elastic pad 13 does not influence spherical protruding 14 and rolls off from spherical recess 15, on the other hand, the user can judge through the change of force whether to move in place.
The copper bar 5 is arranged at the top of the pressing plate 62, and the copper bar 5 is connected with the spherical protrusion 14 through the conductive column, so that the distance between the copper bar 5 and the tapping terminal 4 is increased.
Referring to fig. 2-4, the limiting member 6 includes two sets of pressing plates 62 and limiting plates 63, the two sets of pressing plates 62 and the limiting plates 63 form a parallelogram, one pressing plate 62 is fixedly connected with the copper bar 5, the connecting column 12 is provided with four sets of connecting columns, the four ends of the pressing plates 62 are respectively fixedly connected with the four ends of the limiting plates 63, the four ends of the limiting plates 63 are fixedly connected with the adjusting sleeve 61, the connecting column 12 is in threaded connection with the adjusting sleeve 61, the elastic pad 13 is arranged at the top of the limiting plates 63, and the copper bar 5 can move more stably and reliably through the parallelogram, so that the pressing plates 62 can move in place, and the top of the tapping terminal 4 or the bottom of the pressing plate 62 are provided with chamfers.
The bottom of locating rack 8 is equipped with spacing arch, and protruding close to limiting plate 63's inboard makes at every turn clamp plate 62 motion keep unanimous through bellied spacing, further improves the reliability.
Referring to fig. 1 and 5, the slider assembly 7 includes a slider 71, the slider 71 is fixedly connected with the adjusting rod 9, a pressing block 72 is fixedly connected to the bottom of the slider 71, two sides of the slider 71 corresponding to the pressing plates 62 are respectively provided with a push rod 73, the pressing plates 62 are pressing plates 62 without the copper bars 5, and the pressing block 72 can simultaneously press the two pressing plates 62.
When the pressure is regulated, the pressing piece 10 is rotated, the regulating rod 9 is loosened, the regulating rod 9 is pushed to move to adjust the gear, as the limiting plate 63 on one side is in a state far away from the tapping terminal 4, the whole thickness is large, the elastic pad 13 is tightly attached to the spherical bulge 14 and is in a state difficult to compress, the limiting plate 63 on the other side is in a state close to the tapping terminal 4, the whole thickness is small, the elastic pad 13 is in a state easy to compress, when the pressing plate 62 is pulled, one side easier to compress is pulled out easily and rotates around the other side, and when the limiting plate 63 on the other side is tightly attached to the bulge of the positioning frame 8 again, the elastic pad 13 on the copper bar 5 is aligned with the spherical bulge 14 again, and meanwhile, the other side is in a state easy to be pulled out due to rotation, and the copper bar 5 is rotated in a direction changing direction.
Claims (8)
1. The utility model provides a dry-type power transformer, includes support (1) and copper bar (5), be equipped with high-voltage coil (2) and low-voltage coil (3) on support (1), one side of high-voltage coil (2) is equipped with tapping terminal (4), copper bar (5) connect two tapping terminals (4) can change the effective turns of winding, its characterized in that:
the support (1) is fixedly connected with a locating rack (8) through a connecting rack (11), the locating rack (8) is movably connected with a sliding block assembly (7) at the position corresponding to each copper bar (5), the sliding block assembly (7) can move to push the copper bars (5) to rotate, limiting pieces (6) are connected to two sides of each copper bar (5), the limiting pieces (6) are in threaded connection with the copper bars (5) through connecting columns (12), when the copper bars (5) rotate, the limiting pieces (6) on one side move towards the tapping terminal (4), the limiting pieces (6) on the other side are far away from the tapping terminal (4), the bottoms of the locating racks (8) can be tightly attached to the limiting pieces (6) when the tapping terminal (4) are far away from the tapping terminal (4), and spherical protrusions (14) and spherical grooves (15) are respectively arranged between the tapping terminal (4) and the copper bars (5).
The copper bar (5) presses the tapping terminal (4) when the pressing piece (10) does not apply pressure to the limiting piece (6), and the copper bar (5) can slide out of the tapping terminal (4).
2. Dry power transformer according to claim 1, characterized in that three of the slider assemblies (7) are connected to one and the same adjusting rod (9).
3. Dry power transformer according to claim 2, characterized in that the pressing part (10) is a quick-release rod, the pressing part (10) penetrates through the adjusting rod (9) and the connecting frame (11), when the dry power transformer is tensioned, the adjusting rod (9) is made to be close to the tapping terminal (4) so as to transmit pressure to the limiting part (6) through the sliding block component (7), when the dry power transformer is released, the limiting part (6) does not apply pressure to the copper bar (5), the connecting frame (11) is provided with a second sliding groove (16), and the end part of the pressing part (10) penetrates through the second sliding groove (16) and slides in the connecting frame (11).
4. The dry-type power transformer according to claim 1, wherein the top of the limiting piece (6) is provided with a pre-pressed elastic pad (13), the elastic pad (13) is fixedly connected with the limiting piece (6), and the elastic pad (13) is tightly attached to the bottom of the positioning frame (8).
5. The dry-type power transformer according to claim 1, wherein the limiting piece (6) comprises two groups of pressing plates (62) and limiting plates (63), the two groups of pressing plates (62) and the limiting plates (63) form a parallelogram, one pressing plate (62) is fixedly connected with the copper bar (5), the connecting column (12) is provided with four groups of pressing plates (62) which are respectively fixedly connected with four ends of the pressing plates (62), the four ends of the limiting plates (63) are fixedly connected with adjusting sleeves (61), and the connecting column (12) is in threaded connection with the adjusting sleeves (61).
6. Dry power transformer according to claim 5, characterized in that the copper bar (5) is arranged on top of the press plate (62), the copper bar (5) being connected with the spherical protrusion (14) by means of a conductive post.
7. Dry power transformer according to claim 5, characterized in that the bottom of the positioning frame (8) is provided with a limit protrusion, which is attached to the inner side of the limit plate (63).
8. The dry-type power transformer according to claim 5, wherein the slider assembly (7) comprises a slider (71), the slider (71) is fixedly connected with an adjusting rod (9), a pressing block (72) is fixedly connected to the bottom of the slider (71), push rods (73) are arranged on two sides of the slider (71) corresponding to the pressing plates (62), and the pressing block (72) can simultaneously press the two pressing plates (62).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410133404.1A CN117672691B (en) | 2024-01-31 | 2024-01-31 | Dry-type power transformer |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202410133404.1A CN117672691B (en) | 2024-01-31 | 2024-01-31 | Dry-type power transformer |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN117672691A true CN117672691A (en) | 2024-03-08 |
| CN117672691B CN117672691B (en) | 2024-04-05 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202410133404.1A Active CN117672691B (en) | 2024-01-31 | 2024-01-31 | Dry-type power transformer |
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| Country | Link |
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| CN (1) | CN117672691B (en) |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002129230A (en) * | 2000-10-20 | 2002-05-09 | Fuji Electronics Industry Co Ltd | Matched transformer |
| CN2901526Y (en) * | 2006-04-14 | 2007-05-16 | 江苏华鹏变压器有限公司 | Dry end voltage regulation transformer |
| CN205264463U (en) * | 2015-12-03 | 2016-05-25 | 山东泰开特变有限公司 | No angle error dry -type grounding transformer |
| CN207909678U (en) * | 2017-12-06 | 2018-09-25 | 广东长牛电气股份有限公司 | A kind of dry-type transformer |
| CN109411198A (en) * | 2018-12-07 | 2019-03-01 | 山东达驰阿尔发电气有限公司 | A kind of dry-type transformer |
| CN112133548A (en) * | 2020-09-17 | 2020-12-25 | 天津市特变电工变压器有限公司 | Large-current belt-tapping voltage-regulating dry-type transformer and voltage regulating method |
-
2024
- 2024-01-31 CN CN202410133404.1A patent/CN117672691B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2002129230A (en) * | 2000-10-20 | 2002-05-09 | Fuji Electronics Industry Co Ltd | Matched transformer |
| CN2901526Y (en) * | 2006-04-14 | 2007-05-16 | 江苏华鹏变压器有限公司 | Dry end voltage regulation transformer |
| CN205264463U (en) * | 2015-12-03 | 2016-05-25 | 山东泰开特变有限公司 | No angle error dry -type grounding transformer |
| CN207909678U (en) * | 2017-12-06 | 2018-09-25 | 广东长牛电气股份有限公司 | A kind of dry-type transformer |
| CN109411198A (en) * | 2018-12-07 | 2019-03-01 | 山东达驰阿尔发电气有限公司 | A kind of dry-type transformer |
| CN112133548A (en) * | 2020-09-17 | 2020-12-25 | 天津市特变电工变压器有限公司 | Large-current belt-tapping voltage-regulating dry-type transformer and voltage regulating method |
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| Publication number | Publication date |
|---|---|
| CN117672691B (en) | 2024-04-05 |
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