CN113035567B - Power capacitor grounding device of dustproof lightning arrester - Google Patents
Power capacitor grounding device of dustproof lightning arrester Download PDFInfo
- Publication number
- CN113035567B CN113035567B CN202110281052.0A CN202110281052A CN113035567B CN 113035567 B CN113035567 B CN 113035567B CN 202110281052 A CN202110281052 A CN 202110281052A CN 113035567 B CN113035567 B CN 113035567B
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- conductive shell
- power capacitor
- accommodating cavity
- capacitor body
- grounding
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- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-SENSITIVE DEVICES, OF THE ELECTROLYTIC TYPE
- H01G2/00—Details of capacitors not covered by a single one of groups H01G4/00-H01G11/00
-
- H—ELECTRICITY
- H01—ELECTRIC ELEMENTS
- H01G—CAPACITORS; CAPACITORS, RECTIFIERS, DETECTORS, SWITCHING DEVICES OR LIGHT-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
Abstract
The invention relates to the technical field of power equipment, in particular to a power capacitor grounding device of a dustproof lightning arrester, which comprises a power capacitor body, an upper conductive shell, a lower conductive shell, annular magnetic steel and an annular iron ring, wherein a grounding column is fixedly connected to the bottom of the power capacitor body, the power capacitor body is vertically inserted into a lower accommodating cavity, the lower end of the grounding column is in contact with the inner wall of the lower accommodating cavity, the annular iron ring is arranged at the upper end of the lower conductive shell, the annular magnetic steel is arranged at the lower end of the upper conductive shell, and the annular magnetic steel and the annular iron ring are adsorbed together. The power capacitor is covered by the upper conductive shell and the lower conductive shell, so that the attractiveness is improved, the grounding column is prevented from being oxidized, rusted and deposited dust, the service life is prolonged, and the grounding effect is ensured.
Description
Technical Field
The invention relates to the technical field of power equipment, in particular to a power capacitor grounding device of a dustproof lightning arrester.
Background
In low voltage power distribution, power capacitors are essential. Since the housing of the power capacitor is made of metal, it is easy to accumulate induced charges, which are easily susceptible to electric shock if they are not discharged by reliable grounding, and therefore, in order to ensure the safety of the power capacitor and the related personnel, the reliable grounding of the power capacitor must be ensured. Traditional power capacitor ground connection mode is all at ground connection screw terminal of the afterbody welding of power capacitor body to screw up the earth connection and realize ground connection, and this kind of ground connection mode has not only increased the holistic length of condenser, and plus ground connection terminal is in power capacitor's whole, influence pleasing to the eye, plus ground connection terminal makes power capacitor very easily cause the damage of power capacitor body in transportation and installation, in addition ground connection terminal exposes in the ambient air for a long time, not only easy oxidation rusts and influences power capacitor life-span, and easy deposition influences the ground effect. Therefore, a power capacitor grounding device of the dustproof lightning arrester is provided.
Disclosure of Invention
The invention provides a power capacitor grounding device of a dustproof lightning arrester, overcomes the defects of the prior art, and can effectively solve the problems of short service life, poor grounding effect and poor attractiveness caused by the fact that a grounding terminal is exposed outside and easily rusts and falls off.
The technical scheme of the invention is realized by the following measures: the utility model provides a power capacitor earthing device of dustproof arrester, including the power capacitor body, go up conductive housing, lower conductive housing, annular magnet steel and annular iron ring, it holds the chamber to be equipped with the opening on downwards in the conductive housing to go up, be equipped with the opening below in the conductive housing down and hold the chamber, power capacitor body bottom fixedly connected with ground post, the vertical cartridge of power capacitor body holds the intracavity under, ground post lower extreme and the intracavity wall that holds down contact, it holds the chamber cover in the power capacitor body upper portion outside to go up conductive housing through last, lower conductive housing upper end is equipped with annular iron ring, it is equipped with annular magnet steel to go up conductive housing lower extreme, annular magnet steel and annular iron ring adsorb together, go up conductive housing, lower conductive housing, the shell body that includes the power capacitor body cover is constituteed jointly to annular magnet steel and annular iron ring, it is equipped with the counter bore to hold the conductive housing bottom down, be equipped with the terminal in, it runs through conductive housing to hold the chamber upper end on, it is equipped with and is used for closing to hold chamber upper end open-ended copper heat dissipation top cap, it has a plurality of pieces of copper heat dissipation aluminum sheet to distribute on the copper.
The following is further optimization or/and improvement of the technical scheme of the invention:
above-mentioned go up conductive housing can be the cylindrical structure that link up from top to bottom at the middle part, goes up conductive housing top and is equipped with copper heat dissipation top cap, and lower conductive housing is the lower extreme and seals upper end open-ended cylindrical structure, holds the intracavity wall on and is equipped with the installation annular along the circumferencial direction, installs ring shape rubber strip in the installation annular, and the internal diameter of rubber strip is less than the internal diameter of last conductive housing, and power capacitor body cramps in the rubber strip.
Above-mentioned ground post can be cylindrical, be equipped with the installation sleeve that sets up to the level around being on the lower conductive housing inner wall of both sides position around corresponding ground post respectively, all install a gliding spliced pole around can in every installation sleeve, the equal one end of every spliced pole is located the installation sleeve that corresponds, the every spliced pole other end all is connected with an arc plastic grip block, the one end that every spliced pole is located the installation sleeve all resets through elasticity and conductive housing inner wall fixed connection down, the ground post is by the centre gripping between two plastic grip blocks.
The bottom of the lower conductive shell can be provided with at least two counter bores, and each counter bore is internally provided with a binding post.
The power capacitor is covered by the upper conductive shell and the lower conductive shell, so that the attractiveness is improved, the grounding column is prevented from being oxidized, rusted and deposited dust, the service life is prolonged, and the grounding effect is ensured.
Drawings
FIG. 1 is a schematic sectional view of the preferred embodiment of the present invention in a front view.
FIG. 2 isbase:Sub>A schematic sectional view taken along line A-A of FIG. 1.
Fig. 3 is a schematic top view of the preferred embodiment of the present invention.
The codes in the figures are respectively: 1 is the power capacitor body, 2 is last electrically conductive casing, 3 is electrically conductive casing down, 4 are annular magnet steel, 5 are annular iron ring, 6 are the ground connection post, 7 are the counter bore, 8 are the terminal, 9 are copper heat dissipation top cap, 10 are the heat dissipation aluminum sheet, 11 are the rubber strip, 12 are the installation sleeve, 13 are the spliced pole, 14 are the elasticity piece that resets, 15 are the plastic grip block.
Detailed Description
The present invention is not limited by the following examples, and specific embodiments may be determined according to the technical solutions and practical situations of the present invention.
In the present invention, for convenience of description, the description of the relative position relationship of the components is described according to the layout mode of the attached drawing 1 in the specification, such as: the positional relationship of front, rear, upper, lower, left, right, etc. is determined in accordance with the layout direction of the drawings of the specification.
The invention is further described with reference to the following examples and figures:
as shown in the attached drawings 1, 2, 3, the power capacitor grounding device of the dustproof lightning arrester comprises a power capacitor body 1, an upper conductive shell 2, a lower conductive shell 3, annular magnetic steel 4 and an annular iron ring 5, an upper accommodating cavity with a downward opening is arranged in the upper conductive shell 2, a lower accommodating cavity with an upward opening is arranged in the lower conductive shell 3, a grounding column 6 is fixedly connected to the bottom of the power capacitor body 1, the vertical cartridge of the power capacitor body 1 is accommodated in the lower accommodating cavity, the lower end of the grounding column 6 is contacted with the inner wall of the lower accommodating cavity, the upper conductive shell 2 covers the upper part of the power capacitor body 1 through the upper accommodating cavity, an annular iron ring 5 is arranged at the upper end of the lower conductive shell 3, the lower end of the upper conductive shell 2 is provided with the annular magnetic steel 4, the annular iron ring 5 is adsorbed together, the upper conductive shell 2, the lower conductive shell 3, the outer shell covering the power capacitor body 1 is formed by the annular magnetic steel 4 and the annular iron ring 5 together, a lower conductive shell 3 bottom is provided with a counter bore 7, a plurality of counter bores 8 are arranged in the counter bore 7, the upper end of the upper accommodating cavity penetrates through the upper conductive shell 2, the upper conductive aluminum heat-radiating aluminum sheet 9, and the copper heat-radiating top cover 9 is arranged at the top cover 9 for closing the upper opening of the upper end of the upper heat-radiating copper radiating top cover. According to the requirement, the power capacitor body 1 can be the prior known technology, the upper conductive shell 2 and the copper heat dissipation top cover 9 can be arranged integrally or separately, in the embodiment, the upper conductive shell 2 and the copper heat dissipation top cover 9 are arranged separately, an upper opening of a containing cavity is in a conical hole shape with a small upper end and a large lower end, the copper heat dissipation top cover 9 is a circular table-shaped copper cover body matched with the upper opening of the upper containing cavity, the conical surface of the copper cover body and the inner wall of the upper opening of the upper containing cavity are tightly attached together, the upper conductive shell 2, the lower conductive shell 3, the annular magnetic steel 4 and the annular iron ring 5 jointly form a shell body, therefore, the shell body is convenient to open and close, the power capacitor body 1 is convenient to open, the grounding column 6 is installed in the shell body, the integral attractiveness is improved, dust deposition caused by the fact that the power capacitor body 1 and the grounding column 6 are exposed outside is avoided, and the terminal 8 is arranged in the counter bore 7, and dust deposition on the terminal 8 can be effectively prevented, and the good grounding effect is guaranteed.
The power capacitor grounding device of the dustproof lightning arrester can be further optimized or/and improved according to actual needs:
as shown in the attached drawing 1, the upper conductive shell 2 is a cylindrical structure with a vertically through middle part, a copper heat dissipation top cover 9 is arranged at the top of the upper conductive shell 2, the lower conductive shell 3 is a cylindrical structure with a closed lower end and an open upper end, an installation ring groove is arranged on the inner wall of the upper accommodating cavity along the circumferential direction, a circular rubber strip 11 is installed in the installation ring groove, the inner diameter of the rubber strip 11 is smaller than that of the upper conductive shell 2, and the power capacitor body 1 is tightly hooped in the rubber strip 11. The power capacitor body 1 is hooped when being installed on the outer shell, so that the power capacitor body 1 is not easy to shake or vibrate relative to the outer shell in the transportation and installation processes, the damage to the power capacitor body 1 in the transportation and installation processes is reduced, and the service life is prolonged.
As shown in fig. 2, the ground post 6 is cylindrical, be equipped with respectively on the lower conductive housing 3 inner wall of both sides position around corresponding ground post 6 and be the installation sleeve 12 that the front and back set up to the level, all install a gliding spliced pole 13 around in every installation sleeve 12, every spliced pole 13 homogeneous end is located the installation sleeve 12 that corresponds, every spliced pole 13 other end all is connected with an arc plastic grip block 15, every spliced pole 13 is located the one end of installation sleeve 12 and all resets 14 and conductive housing 3 inner wall fixed connection down through elasticity, ground post 6 is by the centre gripping between two plastic grip blocks 15. According to the demand, elasticity piece 14 that resets can be compression spring, and two plastic clamping blocks 15 tightly grasp ground post 6 under compression spring effect, can play the cushioning effect to ground post 6 from this, can further reduce the range that power capacitor body 1 rocked or vibrated in transportation and installation from this, further reduce the damage that power capacitor body 1 received promptly.
As shown in fig. 1, at least two counter bores 7 are formed in the bottom of the lower conductive housing 3, and a terminal 8 is disposed in each counter bore 7. Thereby further improving the electrical conductivity.
The above technical features constitute the best embodiment of the present invention, which has strong adaptability and best implementation effect, and unnecessary technical features can be increased or decreased according to actual needs to meet the requirements of different situations.
Claims (1)
1. A power capacitor grounding device of a dustproof arrester is characterized by comprising a power capacitor body, an upper conductive shell, a lower conductive shell, annular magnetic steel and an annular iron ring, wherein an upper accommodating cavity with a downward opening is formed in the upper conductive shell, a lower accommodating cavity with an upward opening is formed in the lower conductive shell, a grounding column is fixedly connected to the bottom of the power capacitor body, the power capacitor body is vertically inserted into the lower accommodating cavity, the lower end of the grounding column is in contact with the inner wall of the lower accommodating cavity, the upper conductive shell covers the outer side of the upper part of the power capacitor body through the upper accommodating cavity, the upper end of the lower conductive shell is provided with the annular iron ring, the annular magnetic steel is arranged at the lower end of the upper conductive shell, the annular magnetic steel and the annular iron ring are adsorbed together, the upper conductive shell, the lower conductive shell, the annular magnetic steel and the annular iron ring jointly form an outer shell body which covers the power capacitor body, and the bottom of the lower conductive shell is provided with a counter bore, a binding post is arranged in the counter bore, the upper end of the upper accommodating cavity penetrates through the upper conductive shell, the top of the upper conductive shell is provided with a copper heat dissipation top cover for sealing the upper end opening of the upper accommodating cavity, a plurality of strip-shaped heat dissipation aluminum sheets are distributed on the copper heat dissipation top cover, the upper conductive shell is of a cylindrical structure with the middle part communicated up and down, the top of the upper conductive shell is provided with the copper heat dissipation top cover, the lower conductive shell is of a cylindrical structure with the lower end sealing the upper end opening, the inner wall of the upper accommodating cavity is provided with an installation ring groove along the circumferential direction, an annular rubber strip is installed in the installation ring groove, the inner diameter of the rubber strip is smaller than that of the upper conductive shell, the power capacitor body is tightly hooped in the rubber strip, the grounding post is cylindrical, installation sleeves which are horizontally arranged from front to back are respectively arranged on the inner wall of the lower conductive shell corresponding to the front and back sides of the grounding post, and a connecting post capable of sliding from front to back is installed in each installation sleeve, every spliced pole equal one end is located the installation sleeve that corresponds, and every spliced pole other end all is connected with an arc plastic grip block, and every spliced pole one end that is located the installation sleeve all resets through elasticity and conductive shell inner wall fixed connection down, and the grounding column is by centre gripping between two plastic grip blocks, and lower conductive shell bottom is equipped with two at least counter bores, all is equipped with a terminal in every counter bore.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110281052.0A CN113035567B (en) | 2021-03-16 | 2021-03-16 | Power capacitor grounding device of dustproof lightning arrester |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110281052.0A CN113035567B (en) | 2021-03-16 | 2021-03-16 | Power capacitor grounding device of dustproof lightning arrester |
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| CN113035567A CN113035567A (en) | 2021-06-25 |
| CN113035567B true CN113035567B (en) | 2022-11-25 |
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| CN202110281052.0A Active CN113035567B (en) | 2021-03-16 | 2021-03-16 | Power capacitor grounding device of dustproof lightning arrester |
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| Publication number | Publication date |
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| CN113035567A (en) | 2021-06-25 |
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