CN217656308U - Novel contactor-fuse combined electrical apparatus handcart - Google Patents
Novel contactor-fuse combined electrical apparatus handcart Download PDFInfo
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- CN217656308U CN217656308U CN202221210018.0U CN202221210018U CN217656308U CN 217656308 U CN217656308 U CN 217656308U CN 202221210018 U CN202221210018 U CN 202221210018U CN 217656308 U CN217656308 U CN 217656308U
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- handcart
- fuse
- insulating
- electrical apparatus
- limiting
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Abstract
The utility model relates to a novel contactor-fuse combined electrical apparatus handcart, including the ejector pin that is located between fuse and the handcart back cover, still including the insulating cover plate that is located between fuse and the handcart back cover, the perforation that supplies the ejector pin to run through is seted up to insulating cover plate. The utility model increases the distance between the rear cover and the fuse, namely the distance between the rear cover and the upper contact, increases the insulation distance and improves the insulation level through the arrangement of the insulation cover plate; the arrangement of the annular groove and the circular ring is convenient for the connection of the insulating base and the rear cover, and the connection strength is enhanced; through the arrangement of the limiting pin, the groove and the limiting hole, the stability of the handcart is convenient to keep.
Description
Technical Field
The utility model relates to an electrical apparatus field especially involves switchgear technical field, specifically is a contactor-fuse combined electrical apparatus handcart.
Background
The contactor can cut off large-range short-circuit fault current by matching with the fuse, is suitable for a 50Hz alternating current system, and is particularly suitable for frequent on-off operation circulation occasions; the high-voltage motor protector is widely applied to the fields of thermal power plants, metallurgy, petrifaction, marine transportation, nuclear power stations and the like, and is used as protection and control equipment of high-voltage motors, transformers, induction furnaces and the like. The conventional product cannot meet the anti-seismic requirement when being used in a nuclear power station, and simultaneously has lower insulation level.
SUMMERY OF THE UTILITY MODEL
The utility model provides a novel contactor-fuse combined electrical apparatus handcart to prior art's not enough, improves the shock resistance, improves insulating level.
The utility model discloses a through following technical scheme realization, a novel contactor-fuse combined electrical apparatus handcart, including the ejector pin that is located between fuse and the handcart back cover, still including the insulating cover plate that is located between fuse and the handcart back cover, insulating cover plate sets up the perforation that supplies the ejector pin to run through.
The utility model discloses when using, through insulating cover plate's setting, distance between lid and the fuse after the increase, increase promptly and cover the distance between the contact with last, increase insulation distance improves insulation level.
Preferably, the fuse is located in the insulating base, a circular ring extending towards the rear cover is arranged in the insulating base, and an annular groove matched with the circular ring is formed in the end face of the rear cover.
This preferred scheme is through the setting of ring channel and ring, and the insulating seat of being convenient for is connected with the back lid, reinforcing joint strength.
Preferably, the handcart parking device further comprises two limiting pins fixedly connected to the front end face of the handcart and a limiting plate located at the handcart parking position, a groove is formed in the top surface of the limiting plate, a limiting hole communicated with the groove and used for inserting the limiting pin is formed in the side face of the limiting plate, and a pin shaft located in the groove is inserted into the limiting pin.
This preferred scheme is when using, and is making the handcart is fixed as needs, inserts the spacer pin in the recess, then fixes the spacer pin in the recess with the round pin axle to prevent that the handcart from shaking about from about, about when anti-seismic testing, thereby keep the stability of handcart.
Preferably, a silicon rubber buffer layer is arranged between the insulating seat and the vacuum arc-extinguishing chamber positioned in the insulating seat.
The silicon rubber buffer layer in the optimized scheme has high dielectric strength, high air tightness and high elasticity, so that the phase column can be ensured to reliably run at high and low temperatures, the external insulation fault of the arc extinguish chamber is thoroughly avoided, and the influence of external force impact and dirty environment on the arc extinguish chamber is effectively prevented.
Preferably, the insulating base is formed by pouring epoxy resin.
The utility model has the advantages that: through the arrangement of the insulating cover plate, the distance between the rear cover and the fuse is increased, namely the distance between the rear cover and the upper contact is increased, the insulating distance is increased, and the insulating level is improved; the arrangement of the annular groove and the circular ring is convenient for the connection of the insulating base and the rear cover, and the connection strength is enhanced; through the arrangement of the limiting pin, the groove and the limiting hole, the stability of the handcart is convenient to keep.
Drawings
FIG. 1 is a schematic view of the present invention;
FIG. 2 is a schematic view of a spacing pin;
shown in the figure:
1. the device comprises an upper contact, 2, a fuse, 3, an insert, 4, an insulating seat, 6, an electromagnetic mechanism, 7, fuse interlocking, 8, a chassis, 9, an insulating cover plate, 10, a flexible connection, 12, an insulating pull rod, 13, a vacuum arc-extinguishing chamber, 14, a lower contact, 15, a limiting pin, 16 and a limiting plate.
Detailed Description
In order to clearly illustrate the technical features of the present solution, the present solution is explained below by way of specific embodiments.
Referring to the attached drawings 1-2, the utility model relates to a novel contactor-fuse 2 combined electrical apparatus handcart, including chassis car 8, the rigid coupling has two spacer pins on the preceding terminal surface of chassis car 8, and the limiting plate of handcart parking position department sets up flutedly on the top surface of limiting plate, sets up the intercommunication recess and supplies spacer pin male spacing hole on the side of limiting plate, and the spacer pin is inserted and is equipped with the round pin axle that is located the recess on the spacer pin.
The chassis vehicle 8 is provided with a spring mechanism, three-phase columns are fixed on the spring mechanism, and each phase column comprises a vacuum arc extinguish chamber 13, a flexible connection 10, an insulating pull rod 12, an insert 3, a fuse 2, an insulating seat 4, an insulating cover plate 9, an electromagnetic mechanism 6 and an upper contact 1; the phase column adopts APG epoxy solid sealing technology, simplifies the assembly process, improves the reliability of the conductive loop of the vacuum arc extinguish chamber 13, and ensures that the outer surface of the vacuum arc extinguish chamber 13 is not influenced by the external nuclear environment.
Insulating seat 4 passes through socket head cap screw and connects on spring mechanism, spring mechanism passes through socket head cap screw and connects on chassis car 8, insulating seat 4 passes through epoxy resin pouring integrated into one piece, vacuum interrupter 13 is equipped with in the insulating seat 4, still be equipped with a layer of high dielectric strength between vacuum interrupter 13 and the epoxy, high gas tightness, high elasticity silicon rubber buffer layer, guarantee the reliable operation of looks post under high low temperature, the outer insulation trouble of explosion chamber has thoroughly been stopped, effectively prevent to include external force impact, dirty environment is to the influence of explosion chamber.
Insulating apron 9 is located behind fuse 2 and the handcart between the lid, still be equipped with the ejector pin between the lid behind fuse 2 and the handcart, insulating apron 9 sets up the perforation that supplies the ejector pin to run through, the one end top that the ejector pin is close to the back lid is served to the connecting lever, the connecting lever articulates and covers after, the other end of connecting lever is located the top of well connecting rod, the pin joint of connecting lever is located between the both ends of connecting lever, well connecting rod is kept away from and is equipped with fuse interlocking 7 under connecting lever one end, the ejector pin sets up with insulating apron 9 coaxial line.
The utility model discloses when using, it passes through inserts 3 and is connected with 2 one end of fuse to go up the moving contact, lower contact 14 passes through inserts 3 and is connected with vacuum interrupter 13, the explosion chamber passes through flexible coupling 10 and inserts 3 and is connected with 2 one end of fuse, the explosion chamber passes through insulating pull rod 12 and is connected with spring mechanism simultaneously, chassis car 8 front end is equipped with two spacer pins, the handcart is to the operating position after, the spacer pin inserts the spacing bent plate of the cabinet body downthehole, prevent that the handcart from shifting, play spacing shock-resistant purpose.
Of course, the above description is not limited to the above examples, and technical features of the present invention that are not described in the present application may be implemented by or using the prior art, and are not described herein again; the above embodiments and drawings are only used for illustrating the technical solutions of the present invention and are not intended to limit the present invention, and the present invention has been described in detail with reference to the preferred embodiments, and it should be understood by those skilled in the art that changes, modifications, additions or substitutions made by those skilled in the art within the spirit of the present invention should not depart from the spirit of the present invention, and shall also belong to the protection scope of the claims of the present invention.
Claims (6)
1. The utility model provides a novel contactor-fuse (2) combined electrical apparatus handcart, includes the ejector pin that is located between fuse (2) and the handcart rear cover, its characterized in that: still including being located insulating apron (9) between fuse (2) and the handcart back cover, the perforation that supplies the ejector pin to run through is seted up in insulating apron (9).
2. The novel contactor-fuse (2) combined electrical apparatus handcart of claim 1, characterized in that: fuse (2) are located insulating seat (4), are equipped with the ring that extends to the back lid in insulating seat (4), offer the ring channel with the ring adaptation on the terminal surface of back lid.
3. The novel contactor-fuse (2) combined electrical apparatus handcart of claim 1, characterized in that: the handcart parking device is characterized by further comprising two limiting pins (15) fixedly connected to the front end face of the handcart and a limiting plate (16) located at the parking position of the handcart, wherein a groove is formed in the top surface of the limiting plate, a communicated groove is formed in the side face of the limiting plate, a limiting hole for inserting the limiting pin is formed in the side face of the limiting plate, and a pin shaft located in the groove is inserted into the limiting pin.
4. The novel contactor-fuse (2) combination electrical handcart of claim 1, characterized in that: a silicon rubber buffer layer is arranged between the insulating seat (4) and the vacuum arc-extinguishing chamber positioned in the insulating seat (4).
5. The novel contactor-fuse (2) combination electric appliance handcart of claim 4, characterized in that: the insulating seat (4) is formed by pouring epoxy resin.
6. The novel contactor-fuse (2) combined electrical apparatus handcart of claim 1, characterized in that: and the insulating cover plate (9) is connected with the rear cover of the handcart through a bolt.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221210018.0U CN217656308U (en) | 2022-05-20 | 2022-05-20 | Novel contactor-fuse combined electrical apparatus handcart |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202221210018.0U CN217656308U (en) | 2022-05-20 | 2022-05-20 | Novel contactor-fuse combined electrical apparatus handcart |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217656308U true CN217656308U (en) | 2022-10-25 |
Family
ID=83664695
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202221210018.0U Active CN217656308U (en) | 2022-05-20 | 2022-05-20 | Novel contactor-fuse combined electrical apparatus handcart |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217656308U (en) |
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2022
- 2022-05-20 CN CN202221210018.0U patent/CN217656308U/en active Active
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