CN216212772U - Medium-voltage dry-type reactor - Google Patents
Medium-voltage dry-type reactor Download PDFInfo
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- CN216212772U CN216212772U CN202122719088.0U CN202122719088U CN216212772U CN 216212772 U CN216212772 U CN 216212772U CN 202122719088 U CN202122719088 U CN 202122719088U CN 216212772 U CN216212772 U CN 216212772U
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Abstract
The utility model provides a middling pressure dry-type reactor, includes iron core and coil, the coil is pour as an organic whole and is constituted the core cover with the resin, and the iron core cartridge is in the core cover, still overlaps between iron core and the core cover to be equipped with an insulating cylinder, and the height that highly is greater than the core cover of iron core, the height of insulating cylinder is between the height of iron core and core cover, and the upper and lower both sides of iron core are provided with folder and lower folder respectively, and the upper portion and the last folder of going up the cushion meet, and the lower part outside of going up the cushion is provided with first location step, and the upper end crimping of core cover is on first location step. The outer side of the core sleeve is provided with a first boss and a second boss which are integrally poured with the core sleeve, the first boss is axially arranged on the outer wall of the core sleeve, the two second bosses are arranged on the first boss at intervals up and down, the wiring nut is embedded in the second boss, and the wire inlet end and the wire outlet end of the coil are respectively and electrically connected with the two wiring nuts. The utility model has the characteristic of good stability.
Description
Technical Field
The utility model relates to a medium-voltage dry-type reactor.
Background
Chinese patent document No. CN 201780853U discloses a reactor equipped with a novel limiting upper pad in 2011, 03 and 30. In the production of reactors, reactor upper spacers are often used in order to support the reactor coil and the clamp. In general, the position of the upper pad is displaced by vibration generated due to the long-term operation of the reactor. The reactor of cushion on novel spacing is equipped with, and its constitution includes: the reactor with the iron core, the epoxy that has recess and step recess go up the cushion, have the silicone rubber pad of first boss, the first boss embedding of silicone rubber pad connect the recess of epoxy last cushion, the silicone rubber pad have the step, epoxy on the cushion have the right angle step, the step card of silicone rubber pad go into the inner wall of reactor coil, the epoxy on the right angle step card of cushion go into on the terminal surface of the insulating cylinder in the reactor, the epoxy on the step groove connection of cushion press the nail bowl. Such a reactor is insufficient in stability and thus needs to be improved.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a stable medium-voltage dry-type reactor to overcome the defects in the prior art.
According to this purpose design's a middling pressure dry-type reactor, including iron core and coil, its structural feature is that coil and resin are pour as an organic whole and constitute the core cover, and the iron core cartridge is in the core cover, still overlaps between iron core and the core cover to be equipped with an insulating cylinder, and the height of iron core is greater than the height of core cover, and the height of insulating cylinder is between the height of iron core and the height of core cover, and the upper and lower both sides of iron core are provided with folder and folder down respectively, and the upper portion and the last folder of going up the cushion meet, and the lower part outside of going up the cushion is provided with first location step, and the upper end crimping of core cover is on first location step.
Furthermore, a first boss and a second boss which are integrally poured with the core sleeve are arranged on the outer side of the core sleeve, the first boss is axially arranged on the outer wall of the core sleeve, the two second bosses are arranged on the first boss at intervals up and down, the wiring nut is embedded in the second boss, and the wire inlet end and the wire outlet end of the coil are respectively and electrically connected with the two wiring nuts.
Further, the first boss is provided at a front side or a rear side of the core sleeve.
Furthermore, the height distance between the wiring nut and the wire inlet end and/or the wire outlet end of the coil is 80 mm-300 mm.
Further, the height difference between the height of the insulating cylinder and the height of the core sleeve ranges from 25mm to 200 mm.
Furthermore, a second positioning step is arranged on the inner side of the lower portion of the upper cushion block, a first separation boss is arranged between the first positioning step and the second positioning step, the first separation boss is located between the upper end of the core sleeve and the upper end of the insulating cylinder, and the upper end of the insulating cylinder is in compression joint with the second positioning step.
Further, the medium-voltage dry-type reactor further comprises a lower cushion block connected with the lower clamping piece, a third positioning step is arranged on the outer side of the upper portion of the lower cushion block, the lower end of the core sleeve is in compression joint with the third positioning step, a fourth positioning step is arranged on the inner side of the upper portion of the lower cushion block, a second separation boss is arranged between the third positioning step and the fourth positioning step, the second separation boss is located between the lower end of the core sleeve and the lower end of the insulating cylinder, and the lower end of the insulating cylinder is in compression joint with the fourth positioning step.
Furthermore, the lower part of the upper clamping piece is provided with a flanging, the upper part of the upper cushion block is provided with a positioning groove, one end of the pressing nail is inserted into the positioning groove, and the other end of the pressing nail is inserted into a positioning hole on the flanging.
Furthermore, a first heat dissipation channel is formed between the insulating cylinder and the iron core, and a second heat dissipation channel is formed between the core sleeve and the insulating cylinder; the flanging edge is provided with a first air guide groove with an outward opening, the upper cushion block is positioned on the outer side of the first air guide groove, the positioning hole is positioned beside the first air guide groove, and the first air guide groove is respectively communicated with the first heat dissipation channel and the second heat dissipation channel.
Furthermore, the cross section of the first boss is rectangular, and the second boss is in a round table shape.
The coil and the resin are poured into a whole to form a core sleeve, the iron core is inserted into the core sleeve, an insulating cylinder is further sleeved between the iron core and the core sleeve, the height of the iron core is larger than that of the core sleeve, the height of the insulating cylinder is between that of the iron core and that of the core sleeve, an upper clamping piece and a lower clamping piece are respectively arranged on the upper side and the lower side of the iron core, the upper portion of an upper cushion block is connected with the upper clamping piece, a first positioning step is arranged on the outer side of the lower portion of the upper cushion block, and the upper end of the core sleeve is in compression joint with the first positioning step. The upper cushion block plays a supporting role between the upper clamping piece and the reactor, and has a limiting function, so that cushion block displacement caused by vibration generated by the operation of the reactor is prevented.
The outer side of the core sleeve is provided with a first boss and a second boss which are cast with the core sleeve into a whole, the first boss is axially arranged on the outer wall of the core sleeve, the two second bosses are arranged on the first boss at intervals up and down, the wiring nut is embedded in the second bosses, and the wire inlet end and the wire outlet end of the coil are respectively and electrically connected with the two wiring nuts. The incoming line and the outgoing line of the product are led out by the wiring nut arranged on the core sleeve instead of the incoming line end and the outgoing line end of the coil, so that the creepage distance between the incoming line and the outgoing line and the iron core, and between the upper clamping piece and the lower clamping piece is effectively increased, and the impact resistance of the product is improved.
A first heat dissipation channel is formed between the insulating cylinder and the iron core, and a second heat dissipation channel is formed between the core sleeve and the insulating cylinder; the flanging edge is provided with a first air guide groove with an outward opening, the upper cushion block is positioned on the outer side of the first air guide groove, the positioning hole is positioned beside the first air guide groove, and the first air guide groove is respectively communicated with the first heat dissipation channel and the second heat dissipation channel. The external air takes away the heat in the first heat dissipation channel and the second heat dissipation channel after respectively entering the first heat dissipation channel and the second heat dissipation channel from the lower part of the product, the air with the heat is discharged from the first air guide groove, the heat dissipation of the reactor is completed, and the natural convection of the air is ensured by the first air guide groove and the second air guide groove, so that the heat dissipation effect and the safety performance of the product are enhanced.
The cross section of the first boss is rectangular. The first boss is made of resin, the front end of the previous first boss is tangent to the surface of the coil, namely the included angle between the outer wall of the first boss and the surface of the core sleeve is larger than 90 degrees, the cross section of the first boss is trapezoidal, the using amount of the resin is increased at the moment, and the resin excessively shields the surface of the core sleeve to influence the heat dissipation efficiency, so that the outer wall of the first boss and the surface of the core sleeve are approximately vertically arranged, the material is saved, and the heat dissipation area of the surface of the core sleeve is increased.
In conclusion, the utility model has the characteristic of good stability.
Drawings
Fig. 1 is a schematic structural diagram according to an embodiment of the present invention.
Fig. 2 is a schematic view of an assembly structure of the iron core, the insulating cylinder, and the coil.
Fig. 3 is a schematic perspective view of the upper cushion block.
Fig. 4 is a schematic perspective view of the lower cushion block.
In the figure: 1 is the iron core, 3 is last folder, 3.1 is the turn-ups, 3.1.1 is first guide duct, 4 is the core cover, 4.1 is first boss, 4.2 is the second boss, 5 is last cushion, 5.1 is first location step, 5.2 is second location step, 5.3 is first separation boss, 5.4 is the constant head tank, 6 is the insulating tube, 13 is lower folder, 14 is the pressure nail, 15 is lower cushion, 15.1 is the third location step, 15.2 is the fourth location step, 15.3 is the second separation boss.
Detailed Description
The utility model is further described with reference to the following figures and examples.
Referring to fig. 1-4, the medium voltage dry reactor comprises an iron core 1 and a coil, wherein the coil and resin are poured into a whole to form a core sleeve 4, the iron core 1 is inserted into the core sleeve 4, an insulating cylinder 6 is further sleeved between the iron core 1 and the core sleeve 4, the height of the iron core 1 is greater than that of the core sleeve 4, the height of the insulating cylinder 6 is between the height of the iron core 1 and that of the core sleeve 4, an upper clamping piece 3 and a lower clamping piece 13 are respectively arranged on the upper side and the lower side of the iron core 1, the upper portion of an upper cushion block 5 is connected with the upper clamping piece 3, a first positioning step 5.1 is arranged on the outer side of the lower portion of the upper cushion block 5, and the upper end of the core sleeve 4 is in compression joint with the first positioning step 5.1. In this embodiment, the height of the insulating cylinder is higher than that of the core sleeve, so that the end part of the core sleeve is prevented from discharging, and the safety performance is improved. The air gap between the iron core and the core sleeve can be reduced through the insulating cylinder, and the insulating strength of the reactor is improved.
In this embodiment, the outside of the core sleeve 4 is provided with a first boss 4.1 and a second boss 4.2 which are cast with the core sleeve 4 into a whole, the first boss 4.1 is axially arranged on the outer wall of the core sleeve 4, the two second bosses 4.2 are arranged on the first boss 4.1 at intervals up and down, the wiring nut is embedded in the second boss 4.2, and the wire inlet end and the wire outlet end of the coil are respectively electrically connected with the two wiring nuts.
The binding nut may be generally made of copper.
The first boss 4.1 is disposed on the front or rear side of the core sleeve 4.
The height distance between the wiring nut and the wire inlet end and/or the wire outlet end of the coil is 80 mm-300 mm.
The height difference between the height of the insulating cylinder 6 and the height of the core sleeve 4 ranges from 25mm to 200 mm.
The inner side of the lower part of the upper cushion block 5 is provided with a second positioning step 5.2, a first separation boss 5.3 is arranged between the first positioning step 5.1 and the second positioning step 5.2, the first separation boss 5.3 is positioned between the upper end of the core sleeve 4 and the upper end of the insulating cylinder 6, and the upper end of the insulating cylinder 6 is pressed on the second positioning step 5.2.
The medium-voltage dry-type reactor further comprises a lower cushion block 15 connected with the lower clamping piece 13, a third positioning step 15.1 is arranged on the outer side of the upper portion of the lower cushion block 15, the lower end of the core sleeve 4 is in compression joint with the third positioning step 15.1, a fourth positioning step 15.2 is arranged on the inner side of the upper portion of the lower cushion block 15, a second separation boss 15.3 is arranged between the third positioning step 15.1 and the fourth positioning step 15.2, the second separation boss 15.3 is located between the lower end of the core sleeve 4 and the lower end of the insulating cylinder 6, and the lower end of the insulating cylinder 6 is in compression joint with the fourth positioning step 15.2.
The lower part of the upper clamping piece 3 is provided with a flange 3.1, the upper part of the upper cushion block 5 is provided with a positioning groove 5.4, one end of a press nail 14 is inserted into the positioning groove 5.4, and the other end of the press nail 14 is inserted into a positioning hole on the flange 3.1. The structural strength of the upper clamping piece is improved through the flanging, and the upper clamping piece is stably connected with the core sleeve and the insulating cylinder through the upper clamping plate.
A first heat dissipation channel is formed between the insulating cylinder 6 and the iron core 1, and a second heat dissipation channel is formed between the core sleeve 4 and the insulating cylinder 6; the flanging 3.1 is provided with a first air guide groove 3.1.1 with an outward opening, the upper cushion block 5 is positioned at the outer side of the first air guide groove 3.1.1, the positioning hole is positioned beside the first air guide groove 3.1.1, and the first air guide groove 3.1.1 is respectively communicated with the first heat dissipation channel and the second heat dissipation channel.
The cross section of the first boss 4.1 is rectangular, and the second boss 4.2 is in a round table shape.
In this embodiment, the upper cushion block and the lower cushion block are made of insulating materials, and the upper cushion block and the lower cushion block are respectively distributed along the circumferential direction of the upper end and the lower end of the core sleeve.
In the present embodiment, the medium voltage means 3.3KV to 35 KV.
In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., indicate orientations or positional relationships based on the orientations or positional relationships shown in the drawings, and are used only for the convenience of description and simplicity of description, rather than to indicate or imply that the referenced device or element must have a particular orientation, be constructed and operated in a particular orientation, and thus should not be construed as limiting the utility model, the terms "first" and "second" are used for descriptive purposes only, and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated.
The foregoing shows and describes the general principles and broad features of the present invention and advantages thereof. It will be understood by those skilled in the art that the present invention is not limited to the embodiments described above, which are described in the specification and illustrated only to illustrate the principle of the present invention, but that various changes and modifications may be made therein without departing from the spirit and scope of the present invention, which fall within the scope of the utility model as claimed. The scope of the utility model is defined by the appended claims and equivalents thereof.
Claims (10)
1. The utility model provides a medium voltage dry-type reactor, including iron core (1) and coil, characterized by the coil is poured as an organic whole with the resin and is constituted core cover (4), iron core (1) cartridge is in core cover (4), still the cover is equipped with insulating cylinder (6) between iron core (1) and core cover (4), the height that highly is greater than core cover (4) of iron core (1), the height of insulating cylinder (6) is between the height of iron core (1) and the height of core cover (4), the upper and lower both sides of iron core (1) are provided with folder (3) and folder (13) down respectively, the upper portion and last folder (3) of going up cushion (5) meet, the lower part outside of going up cushion (5) is provided with first location step (5.1), the upper end crimping of core cover (4) is on first location step (5.1).
2. The medium-voltage dry-type reactor is characterized in that a first boss (4.1) and a second boss (4.2) are cast integrally with the core sleeve (4) on the outer side of the core sleeve (4), the first boss (4.1) is axially arranged on the outer wall of the core sleeve (4), the two second bosses (4.2) are arranged on the first boss (4.1) at intervals up and down, the wiring nut is embedded in the second bosses (4.2), and the wire inlet end and the wire outlet end of the coil are respectively and electrically connected with the two wiring nuts.
3. A medium voltage dry reactor according to claim 2 characterized in that the first boss (4.1) is provided on the front or rear side of the core housing (4).
4. The medium voltage dry reactor according to claim 2, wherein the height distance between the terminal nut and the inlet and/or outlet end of the coil is 80mm to 300 mm.
5. The medium voltage dry reactor according to claim 1, characterized in that the difference in height between the height of the insulating cylinder (6) and the height of the core sleeve (4) ranges from 25mm to 200 mm.
6. The medium-voltage dry-type reactor according to claim 1, characterized in that a second positioning step (5.2) is arranged on the inner side of the lower part of the upper cushion block (5), a first separation boss (5.3) is arranged between the first positioning step (5.1) and the second positioning step (5.2), the first separation boss (5.3) is positioned between the upper end of the core sleeve (4) and the upper end of the insulation cylinder (6), and the upper end of the insulation cylinder (6) is pressed on the second positioning step (5.2).
7. The medium-voltage dry-type reactor according to claim 1, further comprising a lower cushion block (15) connected to the lower clamp (13), wherein a third positioning step (15.1) is arranged on the outer side of the upper portion of the lower cushion block (15), the lower end of the core sleeve (4) is in pressure contact with the third positioning step (15.1), a fourth positioning step (15.2) is arranged on the inner side of the upper portion of the lower cushion block (15), a second partition boss (15.3) is arranged between the third positioning step (15.1) and the fourth positioning step (15.2), the second partition boss (15.3) is arranged between the lower end of the core sleeve (4) and the lower end of the insulation cylinder (6), and the lower end of the insulation cylinder (6) is in pressure contact with the fourth positioning step (15.2).
8. The medium-voltage dry-type reactor according to claim 1, characterized in that a flanging (3.1) is arranged at the lower part of the upper clamping piece (3), a positioning groove (5.4) is arranged at the upper part of the upper cushion block (5), one end of a press nail (14) is inserted into the positioning groove (5.4), and the other end of the press nail (14) is inserted into the positioning hole on the flanging (3.1).
9. The medium-voltage dry-type reactor according to claim 1, characterized in that a first heat dissipation channel is formed between the insulation cylinder (6) and the iron core (1), and a second heat dissipation channel is formed between the core sleeve (4) and the insulation cylinder (6); the flanging (3.1) is provided with a first air guide groove (3.1.1) with an outward opening, the upper cushion block (5) is positioned on the outer side of the first air guide groove (3.1.1), the positioning hole is positioned beside the first air guide groove (3.1.1), and the first air guide groove (3.1.1) is respectively communicated with the first heat dissipation channel and the second heat dissipation channel.
10. The medium voltage dry reactor according to claim 2, characterized in that the first boss (4.1) has a rectangular cross section and the second boss (4.2) has a truncated cone shape.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122719088.0U CN216212772U (en) | 2021-11-06 | 2021-11-06 | Medium-voltage dry-type reactor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122719088.0U CN216212772U (en) | 2021-11-06 | 2021-11-06 | Medium-voltage dry-type reactor |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216212772U true CN216212772U (en) | 2022-04-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122719088.0U Active CN216212772U (en) | 2021-11-06 | 2021-11-06 | Medium-voltage dry-type reactor |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216212772U (en) |
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2021
- 2021-11-06 CN CN202122719088.0U patent/CN216212772U/en active Active
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