CN216818013U - Capacitance core middle fixing structure of oiled paper capacitance type bushing - Google Patents
Capacitance core middle fixing structure of oiled paper capacitance type bushing Download PDFInfo
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- CN216818013U CN216818013U CN202122709973.0U CN202122709973U CN216818013U CN 216818013 U CN216818013 U CN 216818013U CN 202122709973 U CN202122709973 U CN 202122709973U CN 216818013 U CN216818013 U CN 216818013U
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Abstract
The utility model discloses a middle fixing structure of an oil paper capacitance type bushing capacitor core, which comprises a capacitor core, a porcelain bushing, a mounting flange and a plurality of positioning rings, wherein the positioning rings respectively comprise a horizontal arc-shaped plate and an arc-shaped panel formed by downward extending of the inner edge of the arc-shaped plate, a plurality of arc-shaped grooves are uniformly formed in the inner edge of the top of the mounting flange in a surrounding manner, the arc-shaped plate of each positioning ring is fixedly connected with the mounting flange through an inner screw, the arc-shaped plate of each positioning ring is attached to the side wall of the mounting flange, the capacitor core penetrates through the mounting flange, the core body of the capacitor core is attached to the inner wall of the arc-shaped panel of each positioning ring, an upper flange is glued outside the bottom end of the porcelain bushing, the porcelain bushing is sleeved outside the capacitor core and is connected with the mounting flange through an upper flange bolt, an annular groove is formed in the top of the mounting flange at the bottom of the porcelain bushing, and an O-shaped ring for sealing is arranged in the annular groove. The utility model can effectively ensure the product quality and the operation stability.
Description
Technical Field
The utility model relates to a capacitor core middle fixing structure of an oiled paper condenser bushing, belonging to the field of high-voltage bushings.
Background
The oiled paper capacitive bushing is mainly structurally characterized in that a cable and an aluminum foil are wound on a conductive tube to form a capacitor core, metal pieces are respectively screwed on the upper end and the lower end of the conductive tube by threads, and external parts such as a porcelain bushing, an installation flange and the like are arranged between the metal pieces; one end of the end screen lead is welded on an end screen polar plate of the capacitor core, the other end of the end screen lead is welded on a binding post of a measuring terminal, and the measuring terminal is installed on the installation flange; the gap between the capacitor core and the porcelain bushing is filled with transformer oil. Because a gap is reserved between the capacitor core and an external part, and the capacitor core wound with cable paper has certain weight, the capacitor core can jump relative to the external part due to bumping and vibration during transportation, and a tail screen lead welded on a tail screen of the capacitor core and a measurement terminal part can be broken by pulling. And when the bushing is stored horizontally, the conductive tube may also be bent due to the weight of the capacitor core. In addition, the sleeve always vibrates in the operation process, so that the thread parts at the two ends of the conductive tube are repeatedly stressed, and the conductive tube is easily damaged for a long time.
Disclosure of Invention
In order to solve the defects of the prior art, the utility model provides a middle fixing structure of a capacitor core of an oiled paper capacitor bushing, which can effectively prevent the capacitor core from jumping to break a tail screen lead wire due to bumping during transportation of the bushing, can also effectively prevent a conductive tube from being bent due to the weight of the core when the bushing is horizontally placed, and can also avoid vibration of the bushing during operation to ensure that the capacitor core shakes to damage the conductive tube or the sealing of the bushing.
The technical scheme adopted by the utility model is as follows:
the utility model provides an oiled paper condenser bushing electric capacity core middle part fixed knot constructs, including electric capacity core, the insulator, mounting flange and a plurality of holding ring, the holding ring all includes the arc panel that forms along downwardly extending in horizontally arc and the arc, along evenly encircleing in mounting flange's top and having seted up a plurality of arc, the arc of holding ring passes through interior screw and mounting flange fixed connection, the arc and the mounting flange lateral wall laminating of holding ring, the electric capacity core alternates the core of mounting flange and electric capacity core and the laminating of the arc panel inner wall of holding ring, it is equipped with the flange to glue outward in the bottom of insulator, the insulator cover is established outside the electric capacity core and is passed through flange and mounting flange bolted connection, be provided with the ring channel at the mounting flange top of insulator bottom, be provided with the O type circle that is used for sealing in the ring channel.
Preferably, the inner side of the mounting flange outwards forms a containing cavity, one side of the containing cavity is provided with an air release plug mounting hole communicated with the containing cavity, an air release plug is mounted in the air release plug mounting hole, the other side of the containing cavity is provided with a measuring terminal mounting hole communicated with the containing cavity, a measuring terminal is mounted in the measuring terminal mounting hole, and a tail screen lead on the capacitor core is fixedly connected with a terminal post in the measuring terminal.
Further preferably, the porcelain bushing and the upper flange are glued through epoxy resin.
The utility model has the beneficial effects that:
fix the electric capacity core through a plurality of holding ring and mounting flange cooperation, jolt when can effectually preventing the sleeve pipe transportation and cause the jump of electric capacity core and snap the end screen lead wire, also can prevent effectively that the sleeve pipe level from putting, because the core weight leads to the contact tube crooked, the sleeve pipe vibrations when can also avoiding moving for the electric capacity core rocks and damages the contact tube or sheathed tube sealed.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a top view of the retaining ring;
the main reference numerals in the figures have the following meanings:
1. the device comprises a capacitor core, 2, a porcelain bushing, 3, a positioning ring, 4, an installation flange, 5, a measurement terminal, 6, a tail screen lead, 7, an upper flange, 8, an O-shaped ring, 9 and a gas release plug.
Detailed Description
The utility model is described in detail below with reference to the figures and examples.
As shown in fig. 1-2: the embodiment is a structure for fixing the middle part of a capacitor core of an oiled paper capacitor bushing, which comprises a capacitor core 1, a porcelain bushing 2, a mounting flange 4 and a plurality of positioning rings 3, wherein the positioning rings 3 respectively comprise a horizontal arc-shaped plate and an arc-shaped panel formed by downward extension of the inner edge of the arc-shaped plate, a plurality of arc grooves are uniformly arranged on the top inner edge of the mounting flange 4 in a surrounding way, the arc plate of the positioning ring 3 is fixedly connected with the mounting flange 4 through an inner screw, the arc plate of the positioning ring 3 is attached to the side wall of the mounting flange 4, the capacitor core 1 penetrates through the mounting flange 4, the core body of the capacitor core 1 is attached to the inner wall of the arc panel of the positioning ring 3, an upper flange 7 is glued outside the bottom end of the porcelain sleeve 2, the porcelain sleeve 2 is sleeved outside the capacitor core 1 and is connected with the mounting flange 4 through the upper flange 7 by bolts, an annular groove is formed in the top of the mounting flange 4 at the bottom of the porcelain bushing 2, and an O-shaped ring 8 for sealing is arranged in the annular groove.
The inside of the mounting flange 4 outwards forms a containing cavity, one side of the containing cavity is provided with an air release plug mounting hole communicated with the containing cavity, an air release plug 9 is mounted in the air release plug mounting hole, the other side of the containing cavity is provided with a measuring terminal mounting hole communicated with the containing cavity, a measuring terminal 5 is mounted in the measuring terminal mounting hole, and a tail screen lead 6 on the capacitor core 1 is fixedly connected with a terminal post in the measuring terminal 5.
And the porcelain bushing 2 and the upper flange 7 are glued through epoxy resin.
Other parts of the oiled paper condenser type bushing, which are not described in detail in the utility model, are the same as the prior art, and are not described again; the utility model discloses a middle fixing structure of a capacitance core of an oiled paper capacitance bushing, wherein a plurality of positioning rings 3 are fixedly arranged on the inner side of a mounting flange 4, a capacitance core 1 penetrates through the mounting flange 4, and a core body of the capacitance core 1 is attached to the inner wall of a cambered plate of the positioning rings 3, when the structure is actually applied, the capacitance core 1 is fixed at the middle section of the capacitance core 1 through the matching of the plurality of positioning rings 3 and the mounting flange 4, so that the phenomenon that the capacitance core 1 jumps to break a tail screen lead 6 due to bumping during bushing transportation can be effectively prevented, the bending of a conductive pipe due to the self weight of the capacitance core 1 when the bushing is horizontally placed can also be effectively prevented, the vibration of the bushing during operation can be avoided, and the vibration of the capacitance core 1 can be caused to damage the conductive pipe or the sealing of the bushing.
The above description is only a preferred embodiment of the present patent, and it should be noted that, for those skilled in the art, several modifications and decorations can be made without departing from the inventive concept, and these modifications and decorations should also be regarded as the protection scope of the present patent.
Claims (3)
1. The utility model provides a oiled paper condenser type bushing electric capacity core middle part fixed knot constructs which characterized in that: including electric capacity core (1), insulator (2), mounting flange (4) and a plurality of holding ring (3), holding ring (3) all include in horizontally arc and the arc along the arc panel that downwardly extending formed in the top of mounting flange (4) along evenly encircleing and having seted up a plurality of arc wall, the arc of holding ring (3) passes through interior screw and mounting flange (4) fixed connection, and the arc of holding ring (3) and mounting flange (4) lateral wall laminating, electric capacity core (1) has alternated the core of mounting flange (4) and electric capacity core (1) and the laminating of the arc panel inner wall of holding ring (3) the bottom of insulator (2) is outer to be equipped with flange (7), insulator (2) cover is established outside electric capacity core (1) and is connected with mounting flange (4) bolt through flange (7), an annular groove is formed in the top of the mounting flange (4) at the bottom of the porcelain sleeve (2), and an O-shaped ring (8) for sealing is arranged in the annular groove.
2. The capacitance core middle fixing structure of the oiled paper condenser bushing according to claim 1, wherein an accommodating cavity is formed outwards in the mounting flange (4), an air release plug mounting hole communicated with the accommodating cavity is formed in one side of the accommodating cavity, an air release plug (9) is mounted in the air release plug mounting hole, a measuring terminal mounting hole communicated with the accommodating cavity is formed in the other side of the accommodating cavity, a measuring terminal (5) is mounted in the measuring terminal mounting hole, and a tail screen lead (6) on the capacitance core (1) is fixedly connected with a terminal post in the measuring terminal (5).
3. The middle fixing structure of the capacitor core of the oiled paper condenser bushing as claimed in claim 1, wherein the porcelain bushing (2) and the upper flange (7) are glued together by epoxy resin.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122709973.0U CN216818013U (en) | 2021-11-08 | 2021-11-08 | Capacitance core middle fixing structure of oiled paper capacitance type bushing |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122709973.0U CN216818013U (en) | 2021-11-08 | 2021-11-08 | Capacitance core middle fixing structure of oiled paper capacitance type bushing |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216818013U true CN216818013U (en) | 2022-06-24 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122709973.0U Active CN216818013U (en) | 2021-11-08 | 2021-11-08 | Capacitance core middle fixing structure of oiled paper capacitance type bushing |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216818013U (en) |
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2021
- 2021-11-08 CN CN202122709973.0U patent/CN216818013U/en active Active
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