CN113921271B - Dry-type self-healing high-voltage power capacitor - Google Patents
Dry-type self-healing high-voltage power capacitor Download PDFInfo
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- CN113921271B CN113921271B CN202111076707.7A CN202111076707A CN113921271B CN 113921271 B CN113921271 B CN 113921271B CN 202111076707 A CN202111076707 A CN 202111076707A CN 113921271 B CN113921271 B CN 113921271B
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- 239000003990 capacitor Substances 0.000 title claims abstract description 52
- 230000017525 heat dissipation Effects 0.000 claims abstract description 48
- 238000007789 sealing Methods 0.000 claims abstract description 27
- 230000000694 effects Effects 0.000 claims abstract description 22
- 239000000428 dust Substances 0.000 claims abstract description 18
- 229920000742 Cotton Polymers 0.000 claims description 26
- 238000004140 cleaning Methods 0.000 claims description 12
- 230000002159 abnormal effect Effects 0.000 claims description 3
- 238000001179 sorption measurement Methods 0.000 claims description 3
- 238000000034 method Methods 0.000 abstract description 30
- 230000002035 prolonged effect Effects 0.000 abstract description 4
- 239000004743 Polypropylene Substances 0.000 description 6
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- -1 polypropylene Polymers 0.000 description 6
- 229920001155 polypropylene Polymers 0.000 description 6
- 239000004020 conductor Substances 0.000 description 4
- 230000015556 catabolic process Effects 0.000 description 3
- 239000011248 coating agent Substances 0.000 description 3
- 238000000576 coating method Methods 0.000 description 3
- 239000010410 layer Substances 0.000 description 3
- 239000003507 refrigerant Substances 0.000 description 3
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- 239000002245 particle Substances 0.000 description 2
- 238000007747 plating Methods 0.000 description 2
- 238000005096 rolling process Methods 0.000 description 2
- 239000002356 single layer Substances 0.000 description 2
- 208000027418 Wounds and injury Diseases 0.000 description 1
- 230000004075 alteration Effects 0.000 description 1
- 238000005452 bending Methods 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000006378 damage Effects 0.000 description 1
- 239000008187 granular material Substances 0.000 description 1
- 208000014674 injury Diseases 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 239000007788 liquid Substances 0.000 description 1
- 230000005389 magnetism Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000004321 preservation Methods 0.000 description 1
- 238000011084 recovery Methods 0.000 description 1
- 230000002441 reversible effect Effects 0.000 description 1
- 230000003068 static effect Effects 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Substances O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 description 1
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Classifications
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/08—Cooling arrangements; Heating arrangements; Ventilating arrangements
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/02—Mountings
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES, LIGHT-SENSITIVE OR TEMPERATURE-SENSITIVE DEVICES OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
- H01G2/10—Housing; Encapsulation
- H01G2/103—Sealings, e.g. for lead-in wires; Covers
Landscapes
- Engineering & Computer Science (AREA)
- Power Engineering (AREA)
- Microelectronics & Electronic Packaging (AREA)
- Cooling Or The Like Of Electrical Apparatus (AREA)
Abstract
The invention relates to the technical field of capacitors, in particular to a dry self-healing high-voltage power capacitor which comprises a mounting box, a capacitor main body, a sealing plate, a heat dissipation unit and a dustproof assembly, wherein the mounting box is fixedly sleeved at the upper end of the capacitor main body, an electrode plate is fixedly connected to the outer surface of the upper end of the capacitor main body, the sealing plate is connected to the inside of the mounting box in a sliding mode, the electrode plate is located inside the mounting box, two external column heads are fixedly connected to the outer surface of the upper end of the sealing plate, and two internal column heads are fixedly connected to the outer surface of the lower end of the sealing plate. According to the invention, by arranging the dustproof component, the interior of the mounting box can be communicated with the outside through the through hole in the operation process of the heat dissipation unit, and when the heat dissipation unit stops working, the interior of the mounting box is in a sealed state, so that the heat dissipation effect of the device can be ensured, meanwhile, a large amount of dust is prevented from being accumulated in the mounting box in the long-time use process, the heat dissipation effect of the device is improved, and the service life of the device is prolonged.
Description
Technical Field
The invention relates to the technical field of capacitors, in particular to a dry self-healing high-voltage power capacitor.
Background
The self-healing capacitor adopts a single-layer polypropylene film as a medium, a layer of thin metal is evaporated on the surface of the single-layer polypropylene film to serve as a conductive electrode, when an overhigh voltage is applied, the electric weakness of the polypropylene film is broken down, the resistance of a breakdown point is obviously reduced, the density of flowing current is sharply increased, a metalized coating generates high heat, a metal conductor around the breakdown point is quickly evaporated and dissipated to form a blank area of the metal coating, and the breakdown point automatically recovers insulation.
A conventional patent (publication No. CN 109903991B) discloses a dry self-healing high-voltage power capacitor, which includes a mounting box and a capacitor main body; the upper surface of the sealing plate is provided with two external column heads, the lower surface of the sealing plate is provided with two internal column heads, and the left internal column head is connected with the capacitor main body; a heat dissipation unit is arranged in the mounting box; the heat dissipation unit comprises a refrigerant heat dissipation group and a wind heat dissipation group; the wind power heat dissipation group comprises a rotating ring, a gear ring and an impeller; the refrigerant heat dissipation group comprises a copper pipe and a water tank; the middle part of the copper pipe is designed in a spring-shaped bending way.
Although above-mentioned condenser can make the mounting box in gaseous and outside air flow through wind-force heat dissipation group, cooperates the heat absorptivity of liquid refrigerant for the radiating efficiency of mounting box, through the cooperation of first cylinder, second cylinder, slide and radiating element, after the temperature reduces in the realization mounting box, condenser automatic recovery work, still has the weak point:
above-mentioned condenser dispels the heat through the heat dissipation unit to mounting box and capacitor body, but because the through-hole exposes in the external world for a long time, the dust enters into the inside of mounting box easily and attached to polar plate and connector post head surface and form the radiating effect that the heat preservation influences the device, and the dust granule receives the heat dissipation unit influence and can produce static and cause the injury to the device in the inside frictioning that wafts of mounting box, especially when the great more area of dust of northwest's amount of wind uses, this kind of phenomenon is more obvious.
Therefore, a dry self-healing high-voltage power capacitor is proposed.
Disclosure of Invention
The invention aims to provide a dry self-healing high-voltage power capacitor, which can communicate the inside of a mounting box with the outside through a through hole in the operation process of a heat dissipation unit by arranging a dustproof component, and the inside of the mounting box is in a sealed state when the heat dissipation unit stops working, so that the heat dissipation effect of a device can be ensured, meanwhile, a large amount of dust is prevented from being accumulated in the mounting box in the long-time use process, the heat dissipation effect of the device is improved, the service life of the device is prolonged, and the problems in the background art are solved.
In order to achieve the purpose, the invention provides the following technical scheme: the utility model provides a dry-type self-healing high voltage power capacitor, includes mounting box, capacitor main part, sealing plate, heat dissipation unit and dustproof subassembly, the mounting box is fixed cup jointed in the upper end of capacitor main part, and the upper end outside fixedly connected with polar plate of capacitor main part, sealing plate sliding connection is in the inside of mounting box, the polar plate is located the inside of mounting box, and the upper end external surface fixedly connected with two sets of external column caps of sealing plate, the lower extreme external surface fixedly connected with two sets of inscription column caps of sealing plate, and the column cap inscription is located left a set and is connected with the capacitor main part, fixed surface is connected with the card post on the polar plate, and has seted up the spread groove in the card post, and fixedly connected with the connection column cap in the spread groove, right side inscription column cap insert in the spread groove with connect the column cap contact, the heat dissipation unit sets up in the inside of mounting box, and the heat dissipation unit is used for dispelling the heat to mounting box and capacitor main part when the capacitor main part is in abnormal state, a plurality of sets up the through-hole that is used for the radiating in the mounting box left and right sides, and set up a plurality of set up the radiating through-hole, and the inside of through-hole is provided with dustproof subassembly;
the dustproof assembly comprises movable rods, sleeves, a first ball, a stop block and a hollow plate, the through hole is spherical, the upper end and the lower end of the inner surface of the through hole are both provided with movable grooves, the sleeves are rotatably connected between the two groups of movable grooves, the stop block is fixedly connected to the outer surface of each sleeve, the stop block is hollow and spherical, the hollow plate is fixedly connected to two opposite sides of the outer surface of the stop block in an embedded mode, and the outer surface of the stop block is tightly attached to the inner surface of the through hole;
the left and right sides of the inner surface of the mounting box are provided with sliding grooves corresponding to the sealing plate, the sliding grooves are connected with sliding blocks in the sliding grooves, the sealing plate is fixedly connected between the sliding blocks on the left and right sides, notches I are formed in the inner surface of the sliding grooves, connecting holes are formed in the inner surface of each notch, the inner surface of each connecting hole penetrates through the insides of the two sets of through holes corresponding to each other from top to bottom in sequence, a movable rod is connected to the inner surface of each connecting hole in a sliding mode and fixedly connected with the corresponding sliding blocks, the lower ends of the movable rods penetrate through the insides of the two sets of corresponding upper and lower sleeves in sequence and are connected with the corresponding sleeves in a rotating mode, spiral grooves I are formed in the inner surface of each sleeve, a spiral groove II is formed in the outer surface of each movable rod and the position corresponding to the spiral groove I, and a ball I is embedded in the spiral groove II.
By arranging the dustproof assembly, the interior of the mounting box can be communicated with the outside through the through hole in the operation process of the heat dissipation unit, and when the heat dissipation unit stops working, the interior of the mounting box is in a sealed state, so that the heat dissipation effect of the device can be ensured, meanwhile, a large amount of dust is prevented from being accumulated in the mounting box in the long-time use process, the heat dissipation effect of the device is improved, and the service life of the device is prolonged;
in the working process, when an overhigh voltage is applied, the electric weak point of the polypropylene film is punctured, the impedance of a puncturing point is obviously reduced, the density of flowing current is sharply increased, a metalized coating generates high heat, a metal conductor around the puncturing point is rapidly evaporated and dissipated, so that the air pressure in the mounting box is increased, the sealing plate is moved upwards, the internal connection column head is separated from the connection column head, the capacitor is powered off to prevent the capacitor from being damaged, after the temperature in the mounting box is recovered to be normal through the heat dissipation unit, the internal connection column head is contacted with the connection column head again, the capacitor supplies power, the sliding block drives the movable rod to move upwards and downwards in the groove I in the vertical moving process of the sealing plate, the movable rod is connected with the sleeve in a rotating mode, the inner surface of the sleeve is provided with the spiral groove I, the outer surface of the movable rod is provided with the spiral groove II in a position corresponding to the spiral groove I, the ball I is movably connected in the embedded mode in the spiral groove I in the vertical moving process, the sleeve rolls in the mode, the sleeve drives the check block to rotate, the two groups of the hollowed plates to be opposite to the openings at two ends of the through holes in the through hole in the process of the sealing plate in a staggered mode that dust can not pass through the two groups in the through hole in the long-time in the process of the mounting box in the process of moving up and the through hole in the mounting box in the case.
Preferably, a plurality of groups of grooves are formed in one end of the inner surface of the movable groove, the grooves are distributed in the movable groove in an annular mode at equal intervals, the second balls are movably connected to the inner surface of the grooves in an embedded mode, annular grooves are formed in the positions, corresponding to the second balls, of the outer surface of the sleeve, and the inner surface of each annular groove is tightly attached to the outer surface of the corresponding second ball.
At the in-process that the movable rod reciprocated, the sleeve pipe can drive the dog between two sets of relative movable slots and just reverse the rotation, therefore the sleeve pipe can produce the friction with the movable slot, through setting up ball two, at the sleeve pipe rotation in-process, the ball rotates along the inside of ring channel and at the inside rotation of recess, changes sliding friction into rolling friction, has reduced the wearing and tearing of sleeve pipe at rotation in-process device, improves the life of device.
Preferably, the position of the outer surface of the sleeve close to the middle part is fixedly connected with a plurality of groups of radiating blades, and the plurality of groups of radiating blades are distributed annularly and equidistantly.
When the heat dissipation unit operates, the sleeve pipe drives the stop block to rotate, and the heat dissipation blades rotate along with the sleeve pipe to accelerate the heat dissipation rate in the mounting box, so that the heat dissipation effect of the device is improved.
Preferably, the cross sectional area of the stop block is larger than that of the through hole, the outer surface of the mounting box is fixedly connected with a supporting plate on one side of the through hole, a second notch is formed in one side, close to the stop block, of the outer surface of the supporting plate, and a cleaning assembly is movably connected inside the second notch.
Through adopting above-mentioned technical scheme, can avoid in long-time use a large amount of dusts of the inside gathering of mounting box when guaranteeing the device radiating effect, improve the radiating effect and the life of device, simultaneously through setting up the clearance subassembly, can clear up dog and fretwork board surface at dog pivoted in-process, reduce the inside that brings into the through-hole with the adnexed dust of dog or dust particle in the outside to get into the inside probability of mounting box from the through-hole.
Preferably, the clearance subassembly includes connecting plate, stopper, magnet one, magnet two and clearance cotton, and connecting plate sliding connection is in the inside of notch two, the both sides fixedly connected with stopper of connecting plate, and the junction of two internal surfaces of notch and stopper has seted up the spacing groove, stopper and spacing groove coincide each other, the lower extreme surface of connecting plate is located the inside fixed position of two notches and is connected with magnet one, and the fixed position that two internal surfaces of notch correspond with magnet one is connected with the magnet two that adsorbs with magnet one magnetism, the clearance cotton sets up in the one side that the connecting plate surface is close to the dog.
Before using, operating personnel inserts the inside of notch two with the connecting plate to make spacing groove and stopper coincide each other, the surface of clearance cotton this moment closely laminates with the surface of dog, and through setting up magnet one and two magnetic adsorption of magnet, improve the stability that connecting plate and backup pad are connected.
Preferably, the outer fixed surface of one side of the clearance cotton is connected with the magic tape matt surface, and the junction fixed connection of connecting plate and magic tape matt surface is connected with the magic tape hook surface, the clearance cotton is through the adhesion of magic tape matt surface and magic tape hook surface and connecting plate fixed connection, and the outer surface of the clearance cotton closely laminates with the surface of dog.
When the dog rotates to the through-hole is inside along with the sleeve pipe, the dog rotates to clearance cotton one side, consequently the clearance cotton can be cleared up the adnexed dust in the long-time use in dog surface to, paste the adhesion with hook face through setting up magic and paste the hair side and make the clearance cotton fix on the connecting plate surface, the operating personnel of being convenient for regularly dismantles and changes the clearance cotton.
Compared with the prior art, the invention has the beneficial effects that:
through setting up dustproof subassembly, can communicate with each other through the through-hole with the inside and the external world of mounting box in the in-process of radiating element operation, when radiating element stop work, the inside of mounting box is encapsulated situation, consequently can avoid the inside a large amount of dusts of gathering of mounting box in long-time use when guaranteeing the device radiating effect, improves the radiating effect and the life of device.
Drawings
FIG. 1 is a schematic structural view of the present invention;
FIG. 2 is a combination view of the dust guard assembly of the present invention and the through hole;
FIG. 3 is an enlarged view of A of FIG. 2 according to the present invention;
FIG. 4 is an enlarged view of B of FIG. 2 according to the present invention;
FIG. 5 is a structural view of the stencil and the stop of the present invention;
FIG. 6 is an enlarged view of C of FIG. 5 of the present invention;
FIG. 7 is a combination view of a through hole and a stencil of the present invention;
fig. 8 is an enlarged view of D of fig. 7 according to the present invention.
In the figure: 1. mounting a box; 2. a capacitor body; 3. a sealing plate; 4. a heat dissipating unit; 5. a dust-proof assembly; 51. a movable rod; 52. a sleeve; 521. a first spiral groove; 522. a second spiral groove; 523. a heat dissipating fin; 53. a first ball; 54. a stopper; 55. a hollowed-out plate; 56. a movable groove; 561. a groove; 562. a second ball bearing; 563. an annular groove; 57. a chute; 58. a slider; 59. a first notch; 591. connecting holes; 6. a polar plate; 61. clamping the column; 62. connecting the column head; 7. the column head is externally connected; 8. inscribe the column cap; 9. a through hole; 91. a support plate; 92. a connecting plate; 93. a limiting block; 94. a magnet I; 95. a second magnet; 96. cleaning cotton; 97. magic tape hair side; 98. hook surface of magic tape; 99. and a second notch.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Referring to fig. 1 to 8, the present invention provides a technical solution:
the utility model provides a dry-type self-healing high voltage power capacitor, as shown in fig. 1 to 5, including mounting box 1, capacitor body 2, closing plate 3, heat dissipation unit 4 and dustproof subassembly 5, mounting box 1 is fixed cup joints in the upper end of capacitor body 2, and the upper end outside fixedly connected with polar plate 6 of capacitor body 2, closing plate 3 sliding connection is in the inside of mounting box 1, polar plate 6 is located the inside of mounting box 1, and the upper end external surface fixedly connected with two sets of external column heads 7 of closing plate 3, the two sets of column head inscription 8 of lower extreme external surface fixedly connected with of closing plate 3, and inscription column head 8 is located left one set of and is connected with capacitor body 2, surface fixedly connected with card post 61 on polar plate 6, and seted up the spread groove in the spread groove, fixedly connected with connect column head 62 in the right side inscription column head 8 inserts the spread groove and contact with connecting column head 62, heat dissipation unit 4 sets up in the inside of mounting box 1, and heat dissipation unit 4 dispels the heat to mounting box 1 and capacitor body 2 when being in the abnormal state, mounting box 1 left and right sides all set up a plurality of through-hole 9 that are used for the heat dissipation, and the inside subassembly 5 that the through-hole that is provided with dustproof subassembly 9;
the dustproof assembly 5 comprises a movable rod 51, sleeves 52, first balls 53, a baffle block 54 and a hollow plate 55, the through hole 9 is spherical, the upper end and the lower end of the inner surface of the through hole 9 are both provided with movable grooves 56, the sleeves 52 are rotatably connected between the two groups of movable grooves 56, the baffle block 54 is fixedly connected to the outer surface of the sleeves 52, the baffle block 54 is hollow spherical, the two opposite sides of the outer surface of the baffle block 54 are fixedly connected with the hollow plate 55 in an embedded manner, and the outer surface of the baffle block 54 is tightly attached to the inner surface of the through hole 9;
the mounting box comprises a mounting box 1 and is characterized in that sliding grooves 57 are formed in the left side and the right side of the inner surface of the mounting box 1, which correspond to a sealing plate 3, sliding blocks 58 are connected to the inner portion of each sliding groove 57 in a sliding manner, the sealing plate 3 is fixedly connected between the sliding blocks 58 on the left side and the right side, a first notch 59 is formed in the inner surface of each sliding groove 57, a connecting hole 591 is formed in the inner surface of each notch 59, the inner surface of each connecting hole 591 penetrates through the inner portions of two groups of through holes 9 corresponding to each other up and down in sequence, a movable rod 51 is connected to the inner surface of each connecting hole 591 in a sliding manner, each movable rod 51 is fixedly connected with each sliding block 58, the lower end of each movable rod 51 penetrates through the inner portions of two groups of corresponding sleeves 52 up and down in sequence and is connected with the sleeves 52 in a rotating manner, a first spiral groove 521 is formed in the inner surface of each movable rod 51, which corresponds to the first spiral groove 521, and a first spiral groove 522 is movably connected with a first ball 53 in an embedded manner.
By arranging the dustproof assembly 5, the interior of the mounting box 1 can be communicated with the outside through the through hole 9 in the operation process of the heat dissipation unit 4, and when the heat dissipation unit 4 stops working, the interior of the mounting box 1 is in a sealed state, so that the heat dissipation effect of the device can be ensured, meanwhile, a large amount of dust is prevented from being accumulated in the mounting box 1 in the long-time use process, the heat dissipation effect of the device is improved, and the service life of the device is prolonged;
during operation, when an excessively high voltage is applied, the electrical weak point of the polypropylene film is punctured, the impedance of a puncturing point is obviously reduced, the density of flowing current is sharply increased, so that high heat is generated in a metalized plating layer, a metal conductor around the puncturing point is rapidly evaporated and dissipated, so that the air pressure in the mounting box 1 is increased, the sealing plate 3 moves upwards, the internal connection column head 8 is separated from the connection column head 62, the capacitor is powered off to prevent the capacitor from being damaged, after the temperature in the mounting box 1 is recovered to be normal through the heat dissipation unit 4, the internal connection column head 8 is contacted with the connection column head 62 again, the capacitor supplies power, during the vertical movement of the sealing plate 3, the sliding block 58 drives the movable rod 51 to move vertically inside the first notch 59, as the movable rod 51 is rotatably connected with the sleeve 52, the first notch 521 is formed in the inner surface of the sleeve 52, the position, corresponding to the first spiral groove 521 is formed in the outer surface of the movable rod 51, the first groove 522 is movably connected with the first ball 53 in an embedded manner, during the vertical movement of the movable rod 51, the inner part of the first groove 521, the sleeve 52 drives the first groove 52 to drive the stopper 54 to rotate, during the process, the two groups of the sleeve 52, the two groups of the through-opened through-hole 9, so that the through-opened dust in the mounting box 1 is prevented from moving when the two groups of the through-box 9 and the through-opening 9 is staggered, and the through-opening 9, thereby, the through-opening during the mounting box 1, the vertical movement of the mounting box, the two groups of the mounting box is prevented from moving process.
As an embodiment of the present invention, as shown in fig. 1 to fig. 4, a plurality of sets of grooves 561 are formed at one end of the inner surface of the movable groove 56, the grooves 561 are annularly and equidistantly distributed inside the movable groove 56, balls two 562 are movably connected to the inner surface of the grooves 561 in an embedded manner, annular grooves 563 are formed in the outer surface of the sleeve 52 at positions corresponding to the balls two 562, and the inner surfaces of the annular grooves 563 are tightly attached to the outer surfaces of the balls two 562.
In the process that movable rod 51 reciprocated up and down, sleeve 52 can drive dog 54 between two sets of relative activity groove 56 and rotate in the positive and negative direction, therefore sleeve 52 can produce the friction with activity groove 56, through setting up ball two 562, in sleeve 52 rotates the in-process, and the ball rotates along the inside of ring channel 563 and at the inside rotation of recess 561, converts sliding friction into rolling friction, has reduced the wearing and tearing of sleeve 52 at the rotation in-process device, improves the life of device.
As an embodiment of the present invention, as shown in fig. 5, a plurality of sets of heat dissipating blades 523 are fixedly connected to a position of the outer surface of the sleeve 52 near the middle portion, and the plurality of sets of heat dissipating blades 523 are annularly and equidistantly distributed.
When the heat dissipation unit 4 operates, the sleeve 52 drives the stopper 54 to rotate, and the heat dissipation blades 523 rotate along with the sleeve 52 to accelerate the heat dissipation rate inside the mounting box 1, thereby improving the heat dissipation effect of the device.
As an embodiment of the present invention, as shown in fig. 5 to 8, the cross-sectional area of the stopper 54 is larger than that of the through hole 9, a supporting plate 91 is fixedly connected to one side of the outer surface of the mounting box 1, which is located at the through hole 9, a second notch 99 is formed in one side of the outer surface of the supporting plate 91, which is close to the stopper 54, and a cleaning assembly is movably connected to the inside of the second notch 99.
Through adopting above-mentioned technical scheme, can be when guaranteeing the device radiating effect, avoid in long-time use a large amount of dusts of the inside gathering of mounting box 1, improve the radiating effect and the life of device, simultaneously through setting up the clearance subassembly, can clear up dog 54 and fretwork board 55 surface at dog 54 pivoted in-process, reduce the inside that brings into through-hole 9 with the adnexed dust of dog 54 in the outside or dust particle, and get into the inside probability of mounting box 1 from through-hole 9.
As an embodiment of the present invention, as shown in fig. 5 to 8, the cleaning assembly includes a connecting plate 92, a limiting block 93, a first magnet 94, a second magnet 95 and a cleaning cotton 96, the connecting plate 92 is slidably connected to the inside of the second notch 99, the limiting block 93 is fixedly connected to two sides of the connecting plate 92, a limiting groove is formed at a connection position of an inner surface of the second notch 99 and the limiting block 93, the limiting block 93 and the limiting groove are engaged with each other, the first magnet 94 is fixedly connected to a position of an outer surface of a lower end of the connecting plate 92, which is located inside the second notch 99, the second magnet 95, which is magnetically adsorbed to the first magnet 94, is fixedly connected to a position of the inner surface of the second notch 99, which corresponds to the first magnet 94, and the cleaning cotton 96 is disposed on one side of the outer surface of the connecting plate 92, which is close to the stopper 54.
Before using, operating personnel inserts the inside of notch two 99 with connecting plate 92 to make spacing groove and stopper 93 coincide each other, the surface of clearance cotton 96 closely laminates with the surface of dog 54 this moment, and through setting up magnet 94 and magnet two 95 magnetic adsorption, improve the stability that connecting plate 92 and backup pad 91 are connected.
As an embodiment of the present invention, as shown in fig. 5 and 6, a hook and loop fastener surface 97 is fixedly connected to an outer surface of one side of the cleaning cotton 96, a hook and loop fastener surface 98 is fixedly connected to a joint of the connecting plate 92 and the hook and loop fastener surface 97, the cleaning cotton 96 is fixedly connected to the connecting plate 92 by adhering the hook and loop fastener surface 97 to the hook and loop fastener surface 98, and the outer surface of the cleaning cotton 96 is tightly attached to the outer surface of the stopper 54.
When dog 54 rotates to through-hole 9 inside along with sleeve pipe 52, dog 54 rotates to clearance cotton 96 one side, consequently clearance cotton 96 can clear up the adnexed dust in the long-time use in dog 54 surface to, paste the adhesion through setting up magic tape matt surface 97 and magic and collude face 98 and make clearance cotton 96 fix on connecting plate 92 surface, the operating personnel of being convenient for regularly dismantles and changes clearance cotton 96.
The working principle is as follows: during operation, when an excessively high voltage is applied, the electrical weak point of the polypropylene film is punctured, the impedance of a puncturing point is obviously reduced, the density of flowing current is sharply increased, so that high heat is generated in a metalized plating layer, a metal conductor around the puncturing point is rapidly evaporated and dissipated, so that the air pressure in the mounting box 1 is increased, the sealing plate 3 moves upwards, the internal connection column head 8 is separated from the connection column head 62, the capacitor is powered off to prevent the capacitor from being damaged, after the temperature in the mounting box 1 is recovered to be normal through the heat dissipation unit 4, the internal connection column head 8 is contacted with the connection column head 62 again, the capacitor supplies power, during the vertical movement of the sealing plate 3, the sliding block 58 drives the movable rod 51 to move vertically inside the first notch 59, as the movable rod 51 is rotatably connected with the sleeve 52, the first notch 521 is formed in the inner surface of the sleeve 52, the position, corresponding to the first spiral groove 521 is formed in the outer surface of the movable rod 51, the first groove 522 is movably connected with the first ball 53 in an embedded manner, during the vertical movement of the movable rod 51, the inner part of the first groove 521, the sleeve 52 drives the first groove 52 to drive the stopper 54 to rotate, during the process, the two groups of the sleeve 52, the two groups of the through-opened through-hole 9, so that the through-opened dust in the mounting box 1 is prevented from moving when the two groups of the through-box 9 and the through-opening 9 is staggered, and the through-opening 9, thereby, the through-opening during the mounting box 1, the vertical movement of the mounting box, the two groups of the mounting box is prevented from moving process.
The mounting box 1, the capacitor body 2, the sealing plate 3, the heat dissipation unit 4, the pole plate 6, the clamping column 61, the connecting column head 62, the external column head 7, the internal column head 8 and the use processes of the components are all given by the background information provided by the invention, and the technical field can obtain the use processes and obtain corresponding use effects by matching with the description of the specification of the invention, so that the use processes are not disclosed one by one.
Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and alterations can be made in these embodiments without departing from the principles and spirit of the invention, the scope of which is defined in the appended claims and their equivalents.
Claims (6)
1. The utility model provides a dry-type self-healing type high voltage power capacitor, includes mounting box (1), capacitor body (2), closing plate (3), heat dissipation unit (4) and dustproof component (5), its characterized in that: the mounting box (1) is fixedly sleeved at the upper end of the capacitor main body (2), a polar plate (6) is fixedly connected to the outer face of the upper end of the capacitor main body (2), the sealing plate (3) is connected to the inside of the mounting box (1) in a sliding mode, the polar plate (6) is located inside the mounting box (1), two groups of external column heads (7) are fixedly connected to the outer surface of the upper end of the sealing plate (3), two groups of internal column heads (8) are fixedly connected to the outer surface of the lower end of the sealing plate (3), the internal column head (8) is located on the left side and is connected with the capacitor main body (2), a clamping column (61) is fixedly connected to the upper surface of the polar plate (6), a connecting groove is formed in the clamping column (61), the connecting groove is fixedly connected with the connecting column head (62) in the internal connecting column head (8) and is inserted into the connecting groove to be in contact with the connecting column head (62), the heat dissipation unit (4) is arranged inside the mounting box (1) when the capacitor main body (2) is in an abnormal state, the heat dissipation unit (4) and is used for dissipating heat of the capacitor main body (2), through holes (9) are formed in the left and right side and in the through holes (1), and the dust dissipation assembly (5) and the through holes (9) are formed in the dust-proof assembly;
the dustproof assembly (5) comprises a movable rod (51), sleeves (52), a first ball (53), a stop block (54) and hollowed-out plates (55), the through hole (9) is spherical, movable grooves (56) are formed in the upper end and the lower end of the inner surface of the through hole (9), the sleeves (52) are rotatably connected between the two groups of movable grooves (56), the stop block (54) is fixedly connected to the outer surface of the sleeves (52), the stop block (54) is hollow and spherical, the hollowed-out plates (55) are fixedly connected to two opposite sides of the outer surface of the stop block (54) in an embedded mode, and the outer surface of the stop block (54) is tightly attached to the inner surface of the through hole (9);
the mounting box is characterized in that sliding grooves (57) are formed in the positions, corresponding to the sealing plates (3), of the left side and the right side of the inner surface of the mounting box (1), sliding blocks (58) are connected to the inner portions of the sliding blocks (58) of the left side and the right side in a sliding mode, a first notch (59) is formed in the inner surface of each sliding groove (57), a connecting hole (591) is formed in the inner surface of each notch (59), the inner surface of each connecting hole (591) penetrates through the insides of two groups of corresponding through holes (9) up and down in sequence, a movable rod (51) is connected to the inner surface of each connecting hole (591) in a sliding mode, the movable rod (51) is fixedly connected with the corresponding sliding blocks (58), the lower end of the movable rod (51) penetrates through the insides of two groups of corresponding upper and lower sleeves (52) in sequence and is connected with the sleeves (52) in a rotating mode, a first spiral groove (521) is formed in the inner surface of the sleeves (52), a second spiral groove (522) is formed in the outer surface of the movable rod (51) corresponding to the first spiral groove (521), and a first embedded movable ball (53) is connected to the second groove (522) in the inner portion of the second groove (522).
2. A dry self-healing high-voltage power capacitor according to claim 1, wherein: a plurality of groups of recesses (561) have been seted up to the one end of activity groove (56) internal surface, and recess (561) are annular equidistance and distribute in the inside of activity groove (56), the embedded swing joint in internal surface of recess (561) has two (562) balls, and the position that the surface of sleeve pipe (52) and two (562) balls correspond has seted up ring channel (563), the internal surface of ring channel (563) closely laminates with the surface of two (562) balls.
3. A dry self-healing high-voltage power capacitor according to claim 2, wherein: the outer surface of the sleeve (52) is fixedly connected with a plurality of groups of radiating blades (523) at a position close to the middle part, and the plurality of groups of radiating blades (523) are distributed annularly and equidistantly.
4. A dry self-healing high-voltage power capacitor according to claim 3, wherein: the cross sectional area of dog (54) is greater than the cross sectional area of through-hole (9), the surface of mounting box (1) is located one side fixedly connected with backup pad (91) of through-hole (9), and the surface of backup pad (91) is close to one side of dog (54) and has seted up notch two (99), the inside swing joint of notch two (99) has the clearance subassembly.
5. A dry self-healing high-voltage power capacitor according to claim 4, wherein: the clearance subassembly includes connecting plate (92), stopper (93), magnet (94), magnet two (95) and clearance cotton (96), and connecting plate (92) sliding connection in the inside of notch two (99), the both sides fixedly connected with stopper (93) of connecting plate (92), and notch two (99) internal surface and the junction of stopper (93) seted up the spacing groove, stopper (93) and spacing groove are identical each other, the lower extreme surface of connecting plate (92) is located notch two (99) inside fixed position connected with magnet one (94), and the fixed position that notch two (99) internal surface and magnet one (94) correspond has magnet two (95) with magnet one (94) magnetic adsorption, clearance cotton (96) set up in one side that connecting plate (92) surface is close to dog (54).
6. A dry self-healing high-voltage power capacitor according to claim 5, wherein: the outer surface of one side of the cleaning cotton (96) is fixedly connected with a magic tape matt surface (97), a connecting part of the connecting plate (92) and the magic tape matt surface (97) is fixedly connected with a magic tape hook surface (98), the cleaning cotton (96) is fixedly connected with the connecting plate (92) through the adhesion of the magic tape matt surface (97) and the magic tape hook surface (98), and the outer surface of the cleaning cotton (96) is tightly attached to the outer surface of the check block (54).
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| CN202111076707.7A CN113921271B (en) | 2021-09-14 | 2021-09-14 | Dry-type self-healing high-voltage power capacitor |
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| CN202111076707.7A CN113921271B (en) | 2021-09-14 | 2021-09-14 | Dry-type self-healing high-voltage power capacitor |
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| CN113921271B true CN113921271B (en) | 2023-01-20 |
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| CN109817448A (en) * | 2019-03-05 | 2019-05-28 | 安徽航睿电子科技有限公司 | A kind of Intelligent low voltage power capacitor |
| CN109903991A (en) * | 2019-03-05 | 2019-06-18 | 安徽航睿电子科技有限公司 | A kind of dry type self-cure type high-voltage power capacitor |
| CN211907989U (en) * | 2020-02-24 | 2020-11-10 | 国网黑龙江省电力有限公司黑河供电公司 | Dustproof effectual outdoor electric power cabinet |
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- 2021-09-14 CN CN202111076707.7A patent/CN113921271B/en active Active
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| Publication number | Priority date | Publication date | Assignee | Title |
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| UA72241C2 (en) * | 2001-09-17 | 2005-02-15 | Plant for regeneration of precipitating electrodes of electrofilter | |
| CN204011071U (en) * | 2014-08-01 | 2014-12-10 | 指明集团有限公司 | Self-healing power capacitor |
| CN109817448A (en) * | 2019-03-05 | 2019-05-28 | 安徽航睿电子科技有限公司 | A kind of Intelligent low voltage power capacitor |
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| CN113921271A (en) | 2022-01-11 |
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