CN211556179U - Tubular bus connecting structure with middle joint insulation seal - Google Patents

Tubular bus connecting structure with middle joint insulation seal Download PDF

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Publication number
CN211556179U
CN211556179U CN202020382057.3U CN202020382057U CN211556179U CN 211556179 U CN211556179 U CN 211556179U CN 202020382057 U CN202020382057 U CN 202020382057U CN 211556179 U CN211556179 U CN 211556179U
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China
Prior art keywords
generating line
screen
insulation
tube
bus
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Active
Application number
CN202020382057.3U
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Chinese (zh)
Inventor
龙腾
辛万鹏
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Beijing Zhongneng Electrical Equipment Co ltd
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Boshine Jiangsu High Voltage Electric Co ltd
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Priority to CN202020382057.3U priority Critical patent/CN211556179U/en
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Abstract

The utility model provides a tub generating line connection structure with intermediate head insulation sealing. The utility model discloses a two insulating tube generating lines that link together through interior conductive joint, every the insulating tube generating line on the cover metal covering is equipped with, metal covering with be provided with Y type sealing washer between the insulating tube generating line, two the metal covering of insulating tube generating line between link together through the insulating cylinder, the insulating cylinder from interior to exterior is provided with a plurality of layers of electric capacity voltage-sharing screen, and wherein the inlayer is the high-pressure screen, and outmost shielding layer grounding screen that is, outer shielding layer grounding screen draw forth ground lead, every the conductive tube of insulating tube generating line with realize electric equipotential through the spring leaf between the high-pressure screen. The utility model discloses can avoid tub generating line to lead to the internal stress too big because of expend with heat and contract with cold's effect to make the generating line installation realize simple and easy plug form, saved the manpower, increased the benefit.

Description

Tubular bus connecting structure with middle joint insulation seal
The technical field is as follows:
the utility model relates to a tub generating line connection structure with intermediate head insulation sealing belongs to electrical casing technical field.
Background art:
at present, the connection mode of the insulating tube bus in the market has two modes of direct butt joint and connection through flexible connection. The direct butt joint is divided into welding, bushing clamping and other forms, and the connection is rigid connection. The flexible connection is realized by adding a flexible copper band between the insulated tube buses.
The rigid connection increases the local internal stress of the metal conductor, and the phenomenon of expansion with heat and contraction with cold can be generated under the condition of the change of the temperature of the operating environment or the rise of the operating temperature of the rigid connection. Under the condition of long-distance span transmission, the superposition of expansion with heat and contraction with cold is more serious, so that the internal stress of the metal conductor is overlarge and deformation occurs, the conductor and the insulator are displaced mutually and even damaged, the electrical performance is reduced, and the bus insulation function is lost.
The flexible connections are connected by soft copper strips. However, an insulation shielding tube is required to be sleeved outside the connection portion for electrical protection, and one method is to fixedly bond a flange structure at a certain position of the bus of the insulation tube away from the terminal, the insulation shielding tube is connected with the flange structure, the connection between the shielding tube and the main conductor insulators at the two ends is still rigid, and the connection portion cannot really play a role in buffering. Secondly, the main insulating tube bus and the shielding cylinder are fixed and directly fixedly connected by the heat-shrinkable sheath, the method cannot effectively seal and prevent water, the heat-shrinkable sheath is easy to age after long-time irradiation, and the potential safety hazard is large.
In addition, the soft copper strip is connected and needs too much bolt fit, and the installation is wasted time and energy, and the soft copper strip belongs to special-shaped moreover, contains more sharp limit of closed angle, and here field intensity distorts easily, and insulating hidden danger is great, and longer soft copper strip is connected and is made the intermediate head insulating cylinder become big and heavy.
The invention content is as follows:
the utility model aims at the problem that above-mentioned exists provides a tub generating line connection structure with intermediate head is insulating sealed, can avoid tub generating line to lead to the internal stress too big because of expend with heat and contract with cold's effect to make the generating line installation realize simple and easy plug form, saved the manpower, increased the benefit.
The above purpose is realized by the following technical scheme:
the utility model provides a tub generating line connection structure with intermediate head insulation sealing, includes two insulating tube generating lines that link together through interior conductive contact, every insulating tube generating line on the cover be equipped with metal covering, metal covering with be provided with Y type sealing washer between the insulating tube generating line, two the metal covering of insulating tube generating line link together through the insulating cylinder, the insulating cylinder is by interior and be provided with a plurality of layers of electric capacity voltage-sharing screen outward, wherein the inlayer is the high-voltage screen, and outmost outer shielding layer grounding screen that is, outer shielding layer grounding screen draw forth ground lead, every the conductive tube of insulating tube generating line with realize electric equipotential through the spring leaf between the high-voltage screen.
The tubular bus connecting structure with the middle joint insulation seal comprises an inner joint body, two ends of the inner joint body are respectively provided with a connector extending into the insulated tubular bus, the connectors are provided with grooves, and contact fingers are arranged in the grooves.
The tubular bus connecting structure with the middle joint for insulation sealing is characterized in that two ends of the insulating cylinder are respectively provided with a metal end ring, and the metal end rings are connected with the metal cover plate through bolts.
The tubular bus connecting structure with the middle joint for insulation sealing is characterized in that one end of the spring piece is fixed on a conductive tube of the tubular bus, and the other end of the spring piece is in contact with a high-voltage screen on the innermost layer of the insulating cylinder.
Has the advantages that:
the utility model discloses a Y type sealing washer is sealed for the generating line can axial displacement, can avoid tub generating line to lead to the internal stress too big because of expend with heat and contract with cold's effect, and Y type sealing washer can guarantee the sealed of tub generating line intermediate head, can release the stress variation of generating line again. Meanwhile, the contact finger connection mode can enable the installation of the insulating tube bus to be more convenient, the simple plugging form of the bus installation is realized, the labor is saved, and the benefit is increased.
Description of the drawings:
fig. 1 is a schematic structural diagram of the present invention.
In the figure: 1. an insulated pipe bus; 2. an insulating cylinder; 2.1, high-voltage screen; 2.2. the outer shielding layer is connected with the grounding screen; 3. a metal end ring; 4. a metal cover plate; 5. a Y-shaped seal ring; 6. a spring plate; 7. an inner conductive contact; 8. a contact finger; 9. and (4) bolts.
The specific implementation mode is as follows:
as shown in fig. 1: the tubular busbar connection structure with intermediate head insulation sealing of this embodiment includes two insulating tubular busbar 1 that link together through interior conductive contact 7, every insulating tubular busbar on the cover be equipped with metal cover 4, metal cover with be provided with Y type sealing washer 5 between the insulating tubular busbar, sealed through Y type sealing washer, can keep sealed, can guarantee tubular busbar axial free displacement again, two the metal cover of insulating tubular busbar link together through insulator tube 2 between, the insulator tube is provided with a plurality of layers of electric capacity voltage-sharing screen from inside to outside, wherein the inlayer is high-voltage screen 2.1, and outmost outer shielding layer grounding screen 2.2 that is connected for outer shielding layer, outer shielding layer grounding screen draw forth ground lead, every the conductive tube of insulating tubular busbar with realize electric equipotential through spring leaf 6 between the high-voltage screen.
The tubular bus connecting structure with the middle joint insulation seal comprises an inner joint body, connectors extending into the insulation tubular bus are arranged at two ends of the inner joint body respectively, a groove is formed in each connector, a contact finger 8 is arranged in each groove, has excellent conductivity and is embedded into the groove of the inner joint, and the diversion of transition connection of the inner joint is achieved.
The tubular bus connecting structure with the middle joint insulation seal is characterized in that two ends of the insulating cylinder are respectively provided with a metal end ring 3, and the metal end rings are connected with the metal cover plate through bolts 9.
The tubular bus connecting structure with the middle joint for insulation sealing is characterized in that one end of the spring piece is fixed on a conductive tube of the tubular bus, and the other end of the spring piece is in contact with a high-voltage screen on the innermost layer of the insulating cylinder.
The installation method comprises the following steps:
(1) turning the outer insulating surface of the insulating tube bus to reach a certain size and finish degree;
(2) wiping all parts with alcohol and acetone;
(3) gluing the metal end rings to two ends of the insulating cylinder, wherein the end faces are flush, and the threaded holes on the metal end rings face outwards;
(4) embedding a Y-shaped sealing ring into an inner circular groove of a metal cover plate, and sleeving the Y-shaped sealing ring into a certain position on an insulated main bus, wherein the size of the inner circular groove of the metal cover plate and the type of the Y-shaped sealing ring are designed in advance;
(5) the inner conductive joint is embedded into the contact finger and inserted into the conductive tube of an insulated bus, a spring piece is wrapped on the end conductive tube and is placed into the insulating cylinder as a whole at a certain position, and the spring piece always generates certain compressive stress on the inner wall of the insulating cylinder. A sealing ring is arranged between the metal end ring and the metal cover plate and is connected and fastened through a bolt;
(6) a metal cover plate with a Y-shaped sealing ring is sleeved on the other main insulated bus;
(7) inserting another main insulated bus to a certain size;
(8) and (6) fastening the bolts.
The technical means disclosed by the scheme of the utility model is not limited to the technical means disclosed by the technical means, but also comprises the technical scheme consisting of the equivalent replacement of the technical features. The present invention is not to be considered as the best thing, and belongs to the common general knowledge of the technicians in the field.

Claims (4)

1. A tubular bus connecting structure with middle joint insulation sealing is characterized in that: the insulation tube bus comprises two insulation tube buses which are connected together through an inner conductive joint, wherein a metal cover plate is sleeved on each insulation tube bus, a Y-shaped sealing ring is arranged between the metal cover plates, two insulation tube buses are connected together through an insulation tube, the insulation tube is provided with a plurality of layers of capacitance voltage-sharing screens from inside to outside, the innermost layer is a high-voltage screen, the outermost layer is an outer shielding layer grounding screen, the outer shielding layer grounding screen leads out a grounding lead, and each insulation tube bus conductive tube is connected with the high-voltage screen through a spring piece to realize electric equipotential.
2. The tubular busbar connection structure with intermediate joint insulation sealing according to claim 1, wherein: the inner conductive joint comprises an inner joint body, two ends of the inner joint body are respectively provided with a connector extending into the insulating tube bus, the connectors are provided with grooves, and contact fingers are arranged in the grooves.
3. The tubular busbar connection structure with intermediate joint insulation sealing according to claim 1, wherein: two ends of the insulating cylinder are respectively provided with a metal end ring, and the metal end rings are connected with the metal cover plate through bolts.
4. The tubular busbar connection structure with intermediate joint insulation sealing according to claim 1, wherein: one end of the spring leaf is fixed on the conductive tube of the tubular bus, and the other end of the spring leaf is contacted with the high-voltage screen at the innermost layer of the insulating cylinder.
CN202020382057.3U 2020-03-24 2020-03-24 Tubular bus connecting structure with middle joint insulation seal Active CN211556179U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN202020382057.3U CN211556179U (en) 2020-03-24 2020-03-24 Tubular bus connecting structure with middle joint insulation seal

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN202020382057.3U CN211556179U (en) 2020-03-24 2020-03-24 Tubular bus connecting structure with middle joint insulation seal

Publications (1)

Publication Number Publication Date
CN211556179U true CN211556179U (en) 2020-09-22

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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112103678A (en) * 2020-09-27 2020-12-18 江苏浦漕科技股份有限公司 High-reliability monitoring signal line and shielding connection structure
CN113054453A (en) * 2020-12-29 2021-06-29 贵州电网有限责任公司 Coaxial drainage device for tubular bus round bar conductor and construction method thereof
CN114865347A (en) * 2022-04-28 2022-08-05 北京泛美雷特科技有限公司 Connecting device for insulating tube bus
CN115083682A (en) * 2022-07-13 2022-09-20 昆山裕莱祥电子科技有限公司 New forms of energy car of riding instead of walk is with pencil

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN112103678A (en) * 2020-09-27 2020-12-18 江苏浦漕科技股份有限公司 High-reliability monitoring signal line and shielding connection structure
CN112103678B (en) * 2020-09-27 2021-08-20 江苏浦漕科技股份有限公司 High-reliability monitoring signal line and shielding connection structure
CN113054453A (en) * 2020-12-29 2021-06-29 贵州电网有限责任公司 Coaxial drainage device for tubular bus round bar conductor and construction method thereof
CN114865347A (en) * 2022-04-28 2022-08-05 北京泛美雷特科技有限公司 Connecting device for insulating tube bus
CN114865347B (en) * 2022-04-28 2022-12-30 北京泛美雷特科技有限公司 Connecting device for insulating tube bus
CN115083682A (en) * 2022-07-13 2022-09-20 昆山裕莱祥电子科技有限公司 New forms of energy car of riding instead of walk is with pencil
CN115083682B (en) * 2022-07-13 2024-02-23 昆山裕莱祥电子科技有限公司 New forms of energy car pencil of riding instead of walk

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GR01 Patent grant
GR01 Patent grant
TR01 Transfer of patent right
TR01 Transfer of patent right

Effective date of registration: 20210415

Address after: 101500 No.8, Qiangyun Road, economic development zone, Miyun District, Beijing

Patentee after: BUSHING(BEIJING)HV ELECTRIC Co.,Ltd.

Address before: No.18, Longchang Road, Jurong Economic Development Zone, Zhenjiang City, Jiangsu Province

Patentee before: Boshine (Jiangsu) High Voltage Electric Co.,Ltd.

TR01 Transfer of patent right

Effective date of registration: 20240605

Address after: No. 8-3 Qiangyun Road, Economic Development Zone, Miyun District, Beijing, 101500

Patentee after: Beijing Zhongneng Electrical Equipment Co.,Ltd.

Country or region after: China

Address before: 101500 No.8, Qiangyun Road, economic development zone, Miyun District, Beijing

Patentee before: BUSHING(BEIJING)HV ELECTRIC CO.,LTD.

Country or region before: China