CN220189443U - Expansion joint for capacitor case shell - Google Patents
Expansion joint for capacitor case shell Download PDFInfo
- Publication number
- CN220189443U CN220189443U CN202321584871.3U CN202321584871U CN220189443U CN 220189443 U CN220189443 U CN 220189443U CN 202321584871 U CN202321584871 U CN 202321584871U CN 220189443 U CN220189443 U CN 220189443U
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- China
- Prior art keywords
- connecting block
- side wall
- storage bag
- oil storage
- fixedly arranged
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- 239000003990 capacitor Substances 0.000 title claims abstract description 36
- 238000007789 sealing Methods 0.000 claims description 19
- 238000005260 corrosion Methods 0.000 claims description 3
- 230000007797 corrosion Effects 0.000 claims description 3
- 230000005611 electricity Effects 0.000 abstract description 2
- 239000007787 solid Substances 0.000 abstract description 2
- 239000004020 conductor Substances 0.000 description 5
- 230000008602 contraction Effects 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000004075 alteration Effects 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000000034 method Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000005381 potential energy Methods 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
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- Fixed Capacitors And Capacitor Manufacturing Machines (AREA)
Abstract
The utility model relates to the technical field of electricity, in particular to a capacitor case expansion joint, which comprises: the oil storage bag, the expansion shield and the connecting block are annular, the side wall of the lower side of the inner end of the connecting block is provided with internal threads, the port of the oil storage bag is fixedly arranged on the side wall of the upper port of the connecting block, and the expansion shield is fixedly arranged on the side wall of the outer end of the connecting block and is positioned at the outer side of the oil storage bag; through the connector threaded connection that reserves connecting block and condenser case shell surface, the connector is when the connecting block internal thread shifts up, upwards jack-up movable plate and ejector pin, the lower extreme contact of ejector pin and sealed pad to push up sealed pad and baffle through extension spring and leave solid fixed ring, make inside insulating oil of condenser case shell and oil storage bag communicate, compensate the inside insulating oil of condenser case shell, outside expandable guard shield guarantees the normal operating of oil storage bag simultaneously.
Description
Technical Field
The utility model relates to the technical field of electricity, in particular to a capacitor case expansion joint.
Background
A capacitor is an element that stores both electrical quantity and electrical energy (potential energy), one conductor being surrounded by another conductor, or the electric field lines emanating from one conductor all terminate in a conductor system of the other conductor, known as a capacitor.
The capacitor is an important element in the reactive power compensation device of the power system, and because the capacitor is of a fully-sealed structure, the capacitor is influenced by the temperature change of the operating environment, an insulating medium in the capacitor can be influenced by thermal expansion and cold contraction, a certain expansion amount can be generated in the case, and the case of the capacitor can be irreversibly deformed or seriously seeped oil when serious. Therefore, there is a need for a capacitor case expansion joint to compensate the insulating oil inside the capacitor case in real time, and when the insulating oil inside the capacitor expands with heat and contracts with cold, the oil storage bag is preferentially compensated, so that case deformation caused by expansion and contraction of the insulating oil inside the capacitor can be avoided.
Disclosure of Invention
The utility model aims to provide a capacitor case expansion joint to solve the problems in the prior art.
In order to achieve the above purpose, the present utility model provides the following technical solutions: a capacitor case expansion joint, comprising: the oil storage bag, the expansion shield and the connecting block are annular, the side wall of the lower side of the inner end of the connecting block is provided with internal threads, the port of the oil storage bag is fixedly arranged on the side wall of the upper port of the connecting block, and the expansion shield is fixedly arranged on the side wall of the outer end of the connecting block and is positioned at the outer side of the oil storage bag;
a fixed ring is fixedly arranged on the side wall of the upper end of the connecting block, the fixed ring is positioned at the inner side of the oil storage bag, the upper end of the fixed ring is elastically connected with a baffle, and the lower end of the baffle is contacted with the side wall of the upper end of the fixed ring through a sealing gasket;
the inner end side wall of the connecting block is connected with a moving plate in a sliding manner, the upper end of the moving plate is fixedly provided with a push rod, and the sealing gasket is pushed away from the fixed ring when the push rod moves upwards.
Preferably, the connecting block is in threaded connection with a connecting port reserved on the surface of the capacitor box shell, and when the connecting port moves upwards in the internal thread of the connecting block, the moving plate and the ejector rod are lifted upwards, so that insulating oil inside the capacitor box shell is communicated with the oil storage bag.
Preferably, the oil storage bag is made of a high-temperature-resistant corrosion-resistant rubber material, and the expansion shield can expand or contract along with the change of the volume of the oil storage bag.
Preferably, a plurality of fixed cylinders are uniformly and fixedly arranged on the side wall of the upper end of the fixed ring, the inner side of the upper end of each fixed cylinder is slidably inserted with a movable cylinder, and the upper end of each movable cylinder is fixedly provided with a top plate.
Preferably, the outer walls of each fixed cylinder and each movable cylinder are sleeved with springs, one ends of the springs are fixedly arranged on the upper end side wall of the fixed ring, and the other ends of the springs are fixedly arranged on the lower end side wall of the top plate.
Preferably, the baffle is fixedly installed on the side wall of the lower end of the top plate, the sealing gasket is fixedly installed on the side wall of the lower end of the baffle, and the diameters of the baffle and the sealing gasket are larger than the inner diameter of the fixing ring.
Preferably, a plurality of through holes are formed in the side wall of the movable plate, and a plurality of guide blocks are uniformly and fixedly mounted on the side wall of the outer end of the movable plate.
Preferably, the side wall of the inner side of the upper end of the connecting block is uniformly provided with a plurality of guide grooves corresponding to the guide blocks, the outer wall of the moving plate is in sliding connection with the inner side of the upper end of the connecting block, and the outer wall of the guide blocks is in sliding connection with the inner wall of the guide grooves.
Compared with the prior art, the utility model has the beneficial effects that:
through the connector threaded connection that reserves connecting block and condenser case shell surface, the connector is when the connecting block internal thread shifts up, upwards jack-up movable plate and ejector pin, the lower extreme contact of ejector pin and sealed pad to push up sealed pad and baffle through extension spring and leave solid fixed ring, make inside insulating oil of condenser case shell and oil storage bag communicate, compensate the inside insulating oil of condenser case shell, outside expandable guard shield guarantees the normal operating of oil storage bag simultaneously.
Drawings
FIG. 1 is a schematic cross-sectional elevation view of the overall structure of the present utility model;
FIG. 2 is a schematic cross-sectional view of a connecting block of the present utility model;
fig. 3 is a schematic diagram of the overall structure of the connecting block according to the present utility model.
In the figure: 1. an oil storage bag; 2. an expansion shroud; 3. a connecting block; 4. a guide groove; 5. a fixing ring; 6. a moving plate; 7. a guide block; 8. a push rod; 9. a fixed cylinder; 10. a moving cylinder; 11. a spring; 12. a top plate; 13. a baffle; 14. and a sealing gasket.
Detailed Description
In order to make the objects, technical solutions, and advantages of the present utility model more apparent, the embodiments of the present utility model will be further described in detail with reference to the accompanying drawings. It should be understood that the specific embodiments described herein are some, but not all, embodiments of the present utility model, are intended to be illustrative only and not limiting of the embodiments of the present utility model, and that all other embodiments obtained by persons of ordinary skill in the art without making any inventive effort are within the scope of the present utility model.
In the description of the present utility model, it should be noted that the terms "center," "middle," "upper," "lower," "left," "right," "inner," "outer," "top," "bottom," "side," "vertical," "horizontal," and the like indicate orientations or positional relationships based on the orientation or positional relationships shown in the drawings, merely to facilitate description of the present utility model and simplify the description, and do not indicate or imply that the devices or elements referred to must have a specific orientation, be configured and operated in a specific orientation, and thus should not be construed as limiting the present utility model. Furthermore, the terms "a," an, "" the first, "" the second, "" the third, "" the fourth, "" the fifth, "and the sixth" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.
In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "mounted," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.
For purposes of brevity and description, the principles of the embodiments are described primarily by reference to examples. In the following description, numerous specific details are set forth in order to provide a thorough understanding of the embodiments. It will be apparent, however, to one of ordinary skill in the art that the embodiments may be practiced without limitation to these specific details. In some instances, well-known methods and structures have not been described in detail so as not to unnecessarily obscure the embodiments. In addition, all embodiments may be used in combination with each other.
Referring to fig. 1 to 3, the present utility model provides a technical solution: a capacitor case expansion joint, comprising: the oil storage bag 1, the expansion shield 2 and the connecting block 3, the connecting block 3 is in a circular ring shape, the side wall of the lower side of the inner end of the connecting block 3 is provided with internal threads (not marked in the figure), the port of the oil storage bag 1 is fixedly arranged on the side wall of the upper port of the connecting block 3, the expansion shield 2 is fixedly arranged on the side wall of the outer end of the connecting block 3 and is positioned at the outer side of the oil storage bag 1, the connecting block 3 is in threaded connection with a connecting port reserved on the surface of a capacitor box shell, when the internal threads of the connecting block 3 move upwards, the movable plate 6 and the ejector rod 8 are lifted upwards, the ejector rod 8 is contacted with the lower end of the sealing gasket 14, and the sealing gasket 14 and the baffle 13 are lifted away from the fixed ring 5 through the tension spring 11, so that the insulating oil inside the capacitor box shell is communicated with the oil storage bag 1 to compensate the insulating oil inside the capacitor box shell, meanwhile, the normal operation of the oil storage bag 1 is ensured by the external expansion shield 2, the oil storage bag 1 uses a high-temperature and corrosion-resistant rubber material, and the expansion shield 2 can expand or shrink along with the change of the volume of the oil storage bag 1;
the upper end side wall of the connecting block 3 is fixedly provided with a fixed ring 5, the fixed ring 5 is positioned at the inner side of the oil storage bag 1, the upper end of the fixed ring 5 is elastically connected with a baffle 13, the lower end of the baffle 13 is contacted with the upper end side wall of the fixed ring 5 through a sealing gasket 14, a plurality of fixed cylinders 9 are uniformly and fixedly arranged on the upper end side wall of the fixed ring 5, the inner side of the upper end of each fixed cylinder 9 is slidably inserted with a movable cylinder 10, the upper end of each movable cylinder 10 is fixedly provided with a top plate 12, the outer wall of each fixed cylinder 9 and the outer wall of the movable cylinder 10 are sleeved with a spring 11, one end of the spring 11 is fixedly arranged on the upper end side wall of the fixed ring 5, the other end of the spring 11 is fixedly arranged on the lower end side wall of the top plate 12, the lower end side wall of the top plate 12 is fixedly provided with the baffle 13, the sealing gasket 14 is fixedly arranged on the lower end side wall of the baffle 13, the diameters of the baffle 13 and the sealing gasket are larger than the inner diameter of the fixed ring 5, and when the sealing gasket 14 shields the upper end of the fixed ring 5, the spring 11 is in a stretching state, and the sealing function of the oil storage bag 1 is started;
the inner end side wall of the connecting block 3 is slidably connected with a moving plate 6, the upper end of the moving plate 6 is fixedly provided with a push rod 8, when the push rod 8 moves upwards, a sealing gasket 14 is pushed away from the fixed ring 5, a plurality of through holes are formed in the side wall of the moving plate 6, a plurality of guide blocks 7 are uniformly and fixedly arranged on the outer end side wall of the moving plate 6, a plurality of guide grooves 4 corresponding to the guide blocks 7 are uniformly formed in the side wall of the inner side of the upper end of the connecting block 3, the outer wall of the moving plate 6 is slidably connected with the inner side of the upper end of the connecting block 3, and the outer wall of the guide block 7 is slidably connected with the inner wall of the guide groove 4.
When the device works, part of insulating medium can be filled in the oil storage bag 1 in advance, then the connecting block 3 is in threaded connection with a connecting port reserved on the surface of the capacitor box shell, when the connecting port moves upwards in the internal thread of the connecting block 3, the movable plate 6 and the ejector rod 8 are lifted upwards, the ejector rod 8 is contacted with the lower end of the sealing gasket 14, the sealing gasket 14 and the baffle 13 are lifted away from the fixed ring 5 through the tension spring 11, the insulating oil inside the capacitor box shell is communicated with the oil storage bag 1, the insulating oil inside the capacitor box shell is compensated, and meanwhile, the normal operation of the oil storage bag 1 is ensured by the outer expandable shield 2.
Although embodiments of the present utility model have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made therein without departing from the principles and spirit of the utility model, the scope of which is defined in the appended claims and their equivalents.
Claims (8)
1. A capacitor case expansion joint, comprising: oil storage bag (1), inflation guard shield (2) and connecting block (3), its characterized in that: the connecting block (3) is in a ring shape, the side wall of the lower side of the inner end of the connecting block (3) is provided with internal threads, the port of the oil storage bag (1) is fixedly arranged on the side wall of the upper port of the connecting block (3), and the expansion shield (2) is fixedly arranged on the side wall of the outer end of the connecting block (3) and is positioned at the outer side of the oil storage bag (1);
a fixed ring (5) is fixedly arranged on the side wall of the upper end of the connecting block (3), the fixed ring (5) is positioned on the inner side of the oil storage bag (1), the upper end of the fixed ring (5) is elastically connected with a baffle plate (13), and the lower end of the baffle plate (13) is contacted with the side wall of the upper end of the fixed ring (5) through a sealing gasket (14);
a movable plate (6) is slidably connected to the inner end side wall of the connecting block (3), a push rod (8) is fixedly arranged at the upper end of the movable plate (6), and a sealing gasket (14) is pushed away from the fixed ring (5) when the push rod (8) moves upwards.
2. A capacitor case expansion joint according to claim 1, wherein: connecting block (3) and the connector threaded connection that capacitor case shell surface reserved, when connecting block (3) internal thread moved up, with movable plate (6) and ejector pin (8) jack-up, make inside insulating oil of capacitor case shell communicate with oil storage bag (1).
3. A capacitor case expansion joint according to claim 2, wherein: the oil storage bag (1) is made of high-temperature-resistant corrosion-resistant rubber, and the expansion shield (2) can expand or contract along with the change of the volume of the oil storage bag (1).
4. A capacitor case expansion joint according to claim 3, wherein: a plurality of fixed cylinders (9) are uniformly and fixedly arranged on the side wall of the upper end of the fixed ring (5), movable cylinders (10) are slidably inserted into the inner sides of the upper ends of the fixed cylinders (9), and a top plate (12) is fixedly arranged at the upper ends of the movable cylinders (10).
5. A capacitor case expansion joint as set forth in claim 4, wherein: the outer walls of each fixed cylinder (9) and each movable cylinder (10) are respectively sleeved with a spring (11), one end of each spring (11) is fixedly arranged on the upper end side wall of the fixed ring (5), and the other end of each spring is fixedly arranged on the lower end side wall of the top plate (12).
6. A capacitor case expansion joint according to claim 5, wherein: the baffle plate (13) is fixedly mounted on the side wall of the lower end of the top plate (12), the sealing gasket (14) is fixedly mounted on the side wall of the lower end of the baffle plate (13), and the diameters of the baffle plate (13) and the sealing gasket are larger than the inner diameter of the fixed ring (5).
7. A capacitor case expansion joint as set forth in claim 6, wherein: a plurality of through holes are formed in the side wall of the movable plate (6), and a plurality of guide blocks (7) are uniformly and fixedly arranged on the side wall of the outer end of the movable plate (6).
8. A capacitor case expansion joint as set forth in claim 7, wherein: the guide grooves (4) corresponding to the guide blocks (7) are uniformly formed in the side wall of the inner side of the upper end of the connecting block (3), the outer wall of the moving plate (6) is in sliding connection with the inner side of the upper end of the connecting block (3), and the outer wall of the guide block (7) is in sliding connection with the inner wall of the guide groove (4).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321584871.3U CN220189443U (en) | 2023-06-21 | 2023-06-21 | Expansion joint for capacitor case shell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202321584871.3U CN220189443U (en) | 2023-06-21 | 2023-06-21 | Expansion joint for capacitor case shell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN220189443U true CN220189443U (en) | 2023-12-15 |
Family
ID=89110351
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202321584871.3U Active CN220189443U (en) | 2023-06-21 | 2023-06-21 | Expansion joint for capacitor case shell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN220189443U (en) |
-
2023
- 2023-06-21 CN CN202321584871.3U patent/CN220189443U/en active Active
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| GR01 | Patent grant | ||
| GR01 | Patent grant |