CN204809104U - EMUs are with totally enclosed circuit breaker insulator - Google Patents
EMUs are with totally enclosed circuit breaker insulator Download PDFInfo
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- CN204809104U CN204809104U CN201520498191.9U CN201520498191U CN204809104U CN 204809104 U CN204809104 U CN 204809104U CN 201520498191 U CN201520498191 U CN 201520498191U CN 204809104 U CN204809104 U CN 204809104U
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Abstract
The utility model relates to a EMUs are with totally enclosed circuit breaker insulator. Including flange, core and insulated umbrella crowd, flange joint about this insulator of its characterized in that adopts is the accurate moulding by casting structure of chromium -bronze, insulated umbrella crowd in the core inner wall is provided with, insulator external insulation position adopts the whole one shot forming structure of totally enclosed cladding high temperature silicon sulfide rubber, the knife -like switch static contact position of insulator adopts the sealed with silicone rubber of high temperature vulcanization all around to shelter from the shaping structure, and it is the epoxy resin cast structure with epoxy glass fiber silk winding union coupling all to go up the lower flange. The advantage has good electric conductive property, has stronger tensile, bending resistance and compressive property, has improved reliability and resistant electrical property, the arc light drift the when knife -like switch opens and shuts has been prevented. Each item index all has the improvement.
Description
Technical field
The utility model relates to the hermetically sealed circuit breaker insulator of the circuit breaker accessory in High-Voltage Electrical Appliances, particularly a kind of motor train unit.
Background technology
Circuit breaker insulator in the past, due to the deficiency of Flange joint aspect, can not ensure the tension of insulator, bending resistance and compressive property.Meanwhile, due to the structure that insulator external insulation position does not take high-seal processing technology to be formed, reliability and the electric durability energy of the external insulation of insulator therefore can not be ensured; Also due to the structure that the knife switch fixed contact position of insulator does not take corresponding high sealing to be processed to form, and there is arc light drift phenomenon.Along with China's railway career development, motor-car runs the continuous lifting of speed per hour, the old-fashioned porcelain insulator of one in past, and one is that quality is large, and two is that resistance to pollution performance is low, and three is easily burst, and four is easily produce null value, can not meet safe operation requirement.Another kind of overcoat is also had to adopt silicon rubber vacuum circuit-breaker insulated, but upper lower flange metal connector is all outside exposed, and contact coupling part also all adopts outer naked form, and cause arc light to jeopardize silicon rubber cluster parachute during circuit breaker folding plug-in strip, in the confined space, cause dry arcing distance inadequate, creepage distance shortens, easy formation high pressure electric discharge phenomena over the ground, will make product cause external insulation flashover and jeopardize the normal operation of motor-car.
Utility model content
The purpose of this utility model is for above-mentioned defect, provides a kind of motor train unit hermetically sealed circuit breaker insulator.
The technical solution of the utility model is the hermetically sealed circuit breaker insulator of a kind of motor train unit, comprise adpting flange, core body and insulation cluster parachute, it is characterized in that this insulator is divided into upper and lower two bodies, be called insulator and lower insulator, between two bodies, adopt upper and lower Flange joint; Upper insulator is provided with upper flange and lower flange, and lower insulator is also provided with upper flange and lower flange, and the lower flange of upper insulator is connected with the upper flange of lower insulator and adopts chromium-bronze precision pouring molding structure; Core body inwall is provided with interior insulation cluster parachute; Insulator external insulation position adopts hermetically sealed coated high-temperature silicon disulfide rubber integral one-step molding structure; The knife switch fixed contact position of insulator adopts the sealing of surrounding high-temperature silicon disulfide rubber to block molding structure.
Described insulator inwall is provided with silicon rubber cluster parachute; On insulator, lower flange is all connected with epoxy resin fiberglass silk winding pipe, and this connection is epoxy casting structure.
The utility model has the advantages that insulator adpting flange adopts chromium-bronze precision pouring molding structure, ensure that the excellent conductive performance of the upper and lower adpting flange of insulator; On insulator, lower flange and epoxy resin fiberglass silk Chan take epoxy casting structure around the connection of pipe, ensure that insulator has stronger tension, bending resistance and compressive property; Hermetically sealed coated high-temperature silicon disulfide rubber general injection one-shot forming structure is taked at insulator external insulation position, make insulator external insulation cluster parachute (cover) and epoxy resin fiberglass silk Chan around between pipe, have higher adhesion strength and reliable compactness, ensure that the reliability of the external insulation of insulator, improve the electric durability energy of insulator; The knife switch fixed contact position of insulator takes the sealing of surrounding high-temperature silicon disulfide rubber to block molding structure, effectively prevents the arc light drift during folding of knife switch dynamic/static contact; Hermetically sealed coated high-temperature silicon disulfide rubber makes insulator increase creepage distance 12%, and insulator electric clearance increases by 25%, and power-frequency withstand voltage adds 20%, improves insulator contamination voltage 17%, also effectively improves the Electric Field Distribution of insulator; Insulator inwall sets up silicon rubber cluster parachute, and creepage distance of insulation in improving, effectively prevents arc short-circuit.
Accompanying drawing explanation
Fig. 1 is structural representation of the present utility model.
In figure: insulator lower flange under insulate in insulator upper flange, 5-under 1-upper insulator upper flange, 2-core body, the upper insulator lower flange of 3-, 4-cluster parachute, 6-external insulation cluster parachute, 7-.
Embodiment
Embodiment is further illustrated below in conjunction with accompanying drawing.
With reference to Fig. 1, this insulator is divided into upper and lower two bodies, is called insulator and lower insulator, adopts upper and lower Flange joint between two bodies; Upper insulator is provided with upper flange 1 and lower flange 3, and lower insulator is also provided with upper flange 4 and lower flange 7, and the lower flange 3 of upper insulator is connected with the upper flange 4 of lower insulator and adopts chromium-bronze precision pouring molding structure; Core body inwall is provided with interior insulation cluster parachute 5; Insulator external insulation position adopts hermetically sealed coated high-temperature silicon disulfide rubber integral one-step molding structure; The knife switch fixed contact position of insulator adopts the sealing of surrounding high-temperature silicon disulfide rubber to block molding structure; Insulator inwall is provided with silicon rubber cluster parachute, insulation cluster parachute 5 as illustrated in the drawing; On insulator, lower flange is all connected with epoxy resin fiberglass silk winding pipe, and this connection is epoxy casting structure.External insulation cluster parachute 6 is had at the outer portion bag Li of core body 2.Be pointed out that insulator adpting flange employing chromium-bronze precision pouring molding structure is the excellent conductive performance in order to ensure the upper and lower adpting flange of insulator here.And, on insulator, lower flange and epoxy resin fiberglass silk Chan take epoxy casting mode around the connection of pipe, be processed with pouring basin at epoxy glass fiber cloth pipe two ends before cast, after ensureing epoxy casting, there is stronger tension, bending resistance, resistance to compression mechanical performance.
Insulator external insulation position takes hermetically sealed coated high-temperature silicon disulfide rubber general injection one-shot forming structure to be because the larger injection pressure in process of injection molding makes insulator external insulation cluster parachute (cover) and epoxy resin fiberglass silk Chan have higher adhesion strength and reliable compactness around between pipe, thus ensure that the reliability of the external insulation of insulator, improve the electric durability energy of insulator.
Take at the knife switch fixed contact position of insulator surrounding high-temperature silicon disulfide rubber to seal and block molding structure, effectively prevent the arc light drift phenomenon during folding of knife switch dynamic/static contact.
Hermetically sealed coated high-temperature silicon disulfide rubber structure is taked to make insulator increase creepage distance 12%; Insulator electric clearance increases by 25%, and power-frequency withstand voltage adds 20%, improves insulator contamination voltage 17%; Also the Electric Field Distribution of insulator is effectively improved.
Insulator inwall sets up silicon rubber cluster parachute, in order to improve interior creepage distance of insulation, effectively prevent arc short-circuit.
Shown in above Fig. 1 is the embodiment of optimal way; demonstrate substantive distinguishing features and the marked improvement of this product, can according to the needs of practical application, under the enlightenment of this technology; it is carried out to the equivalent modifications of the aspect such as shape and structure, but all within the protection range of the technical program.
Claims (2)
1. the hermetically sealed circuit breaker insulator of motor train unit, comprises adpting flange, core body and insulation cluster parachute, it is characterized in that this insulator is divided into upper and lower two bodies, is called insulator and lower insulator, adopts upper and lower Flange joint between two bodies; Upper insulator is provided with upper flange and lower flange, and lower insulator is also provided with upper flange and lower flange, and the lower flange of upper insulator is connected with the upper flange of lower insulator and adopts chromium-bronze precision pouring molding structure; Core body inwall is provided with interior insulation cluster parachute; Insulator external insulation position adopts hermetically sealed coated high-temperature silicon disulfide rubber integral one-step molding structure; The knife switch fixed contact position of insulator adopts the sealing of surrounding high-temperature silicon disulfide rubber to block molding structure.
2., by the hermetically sealed circuit breaker insulator of a kind of motor train unit according to claim 1, it is characterized in that described insulator inwall is provided with silicon rubber cluster parachute; On insulator, lower flange is all connected with epoxy resin fiberglass silk winding pipe, and this connection is epoxy casting structure.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520498191.9U CN204809104U (en) | 2015-06-30 | 2015-06-30 | EMUs are with totally enclosed circuit breaker insulator |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520498191.9U CN204809104U (en) | 2015-06-30 | 2015-06-30 | EMUs are with totally enclosed circuit breaker insulator |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204809104U true CN204809104U (en) | 2015-11-25 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520498191.9U Active CN204809104U (en) | 2015-06-30 | 2015-06-30 | EMUs are with totally enclosed circuit breaker insulator |
Country Status (1)
| Country | Link |
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| CN (1) | CN204809104U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN106898440A (en) * | 2017-04-19 | 2017-06-27 | 吴滨 | A kind of anti-fracture insulator |
| CN107134327A (en) * | 2017-04-07 | 2017-09-05 | 萍乡强盛电瓷制造有限公司 | A kind of antifouling wear-resisting high-strength degree insulator and preparation method thereof |
| CN112222340A (en) * | 2020-09-18 | 2021-01-15 | 洛阳科工机械装备有限公司 | Chromium bronze flange and forging method |
-
2015
- 2015-06-30 CN CN201520498191.9U patent/CN204809104U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107134327A (en) * | 2017-04-07 | 2017-09-05 | 萍乡强盛电瓷制造有限公司 | A kind of antifouling wear-resisting high-strength degree insulator and preparation method thereof |
| CN106898440A (en) * | 2017-04-19 | 2017-06-27 | 吴滨 | A kind of anti-fracture insulator |
| CN112222340A (en) * | 2020-09-18 | 2021-01-15 | 洛阳科工机械装备有限公司 | Chromium bronze flange and forging method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CP03 | Change of name, title or address |
Address after: 325401 Yikun Electric Company, Hexiang Road, Aojiang Town, Pingyang County, Wenzhou City, Zhejiang Province Patentee after: Wenzhou Yikun Electric Co., Ltd. Address before: 325401 Yikun Electric Company, Hexiang Road, Aojiang Town, Pingyang County, Zhejiang Province Patentee before: Wenzhou Yikun Electric Co., Ltd. |
|
| CP03 | Change of name, title or address |