CN203192620U - Permanent magnetic operating mechanism for ring main unit - Google Patents
Permanent magnetic operating mechanism for ring main unit Download PDFInfo
- Publication number
- CN203192620U CN203192620U CN 201320128010 CN201320128010U CN203192620U CN 203192620 U CN203192620 U CN 203192620U CN 201320128010 CN201320128010 CN 201320128010 CN 201320128010 U CN201320128010 U CN 201320128010U CN 203192620 U CN203192620 U CN 203192620U
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- China
- Prior art keywords
- guide rod
- cover plate
- coil
- operating mechanism
- permanent
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Abstract
The utility model discloses a permanent magnetic operating mechanism for a ring main unit in the field of ring main units. The permanent magnetic operating mechanism comprises a casing, wherein the upper end and the lower end of the casing are respectively provided with an upper cover plate and a lower cover plate, the casing is internally provided with a coil, the center of the coil is provided with a moving core, the center of the moving core is connected with a guide rod, the upper and lower ends of the guide rod respectively pass through the upper cover plate and the lower cover plate, a switching-off spring is sheathed on the upper end of the guide rod, the guide rod is further fixedly provided with a spring seat, the switching-off spring is supported between the spring seat and the upper cover plate, the upper side of the coil is further provided with a magnetic conduction ring, permanent magnets are arranged between the magnetic conduction ring and the casing, the body of the moving core is cylindrical, and the upper end of the body is provided with a radial boss. Due to the design of the boss, the pull-in surface is larger, attraction force produced by the permanent magnet is stronger, the retaining force during switching-off is large, and the overall size can be further reduced on the basis of same retaining force. The device is compact in structure and reliable in use.
Description
Technical field
The utility model relates to a kind of permanent-magnetic switching of ring main unit, particularly the operating mechanism of permanent-magnetic switching.
Background technology
Ring main unit of the prior art, its structure mainly includes the permanent-magnetic switching that arranges in the cabinet, isolating switch, circular main bus bar and sleeve pipe etc., permanent-magnetic switching is connected with permanent-magnet operating mechanism by insulated tension pole, permanent magnet switch operating mechanism comprises housing, the housing top and bottom are respectively equipped with upper cover plate and lower cover, be provided with coil in the housing, the center of coil is provided with moving iron core, moving core center is connected with guide rod, guide rod passes upper cover plate and lower cover respectively in two ends up and down, the guide rod upper end is set with tripping spring, also is fixed with spring base on the guide rod, and tripping spring is supported between spring base and the upper cover plate.The coil upside also is provided with magnetic guiding loop, is provided with permanent magnet between magnetic guiding loop and the housing.During work, coil is switched on forward or backwards, and the moving iron core of pulling moves up and down, and realizes opening a sluice gate and closing a floodgate, during combined floodgate, coil electricity, the permanent magnet mechanism internal magnetic field is directed downwards, drive moving iron core and move downward, close a floodgate by guide rod pulling permanent-magnetic switching, permanent magnet keeps moving iron core to be in attracting state; During separating brake, coil is electricly reverse, magnetic direction and tripping spring acting in conjunction, and moving iron core is threaded off, and realizes separating brake.Its weak point is: moving iron core is cylindrical structural, and the contact area of itself and magnetic guiding loop is little, and the confining force when causing closing a floodgate is little, and for guaranteeing enough the suction-combining forces, overall dimensions needs to strengthen, and is not compact on the structure.
The utility model content
The purpose of this utility model provides a kind of ring main unit permanent-magnet operating mechanism, when can be implemented in small size, can provide enough big adhesive confining force.
The purpose of this utility model is achieved in that a kind of ring main unit permanent-magnet operating mechanism, comprise housing, the housing top and bottom are respectively equipped with upper cover plate and lower cover, be provided with coil in the housing, the center of coil is provided with moving iron core, and moving core center is connected with guide rod, guide rod passes upper cover plate and lower cover respectively in two ends up and down, the guide rod upper end is set with tripping spring, also is fixed with spring base on the guide rod, and tripping spring is supported between spring base and the upper cover plate; The coil upside also is provided with magnetic guiding loop, is provided with permanent magnet between magnetic guiding loop and the housing, and the body of the moving iron core of described moving iron core is cylindrical, and described body upper end is provided with boss radially.
During the utility model work, coil is switched on forward or backwards, the moving iron core of pulling moves up and down, realization is opened a sluice gate and is closed a floodgate, during combined floodgate, and coil electricity, downward at the enclosure interior magnetic direction, drive moving iron core and move downward, close a floodgate by guide rod pulling permanent-magnetic switching, also can keep moving iron core to be in attracting state when permanent magnet makes coil blackout; During separating brake, coil is electricly reverse, the coil magnetic field direction upwards, electromagnetic force and tripping spring acting in conjunction overcome the suction of permanent magnet, iron core are threaded off, the realization separating brake.Compared with prior art, because the design of boss is arranged, make adhesive face bigger in the utility model, the suction that permanent magnet produces is stronger, and the confining force during combined floodgate is big, just can dwindle whole volume on the basis of identical confining force further.This apparatus structure compactness is used reliable.
For guaranteeing that structure is compacter, described boss periphery is equipped with in housing.This design can further reduce the diameter of housing.
Description of drawings
Fig. 1 is the utility model "on" position structural representation.
Fig. 2 is the utility model gate-dividing state structural representation.
Wherein, 1 housing, 2 tripping springs, 3 upper cover plates, 4 moving iron cores, 401 boss, 402 bodies, 5 magnetic guiding loops, 6 permanent magnets, 7 coils, 8 lower covers, 9 guide rods, 10 spring bases.
Embodiment
As shown in the figure, be a kind of ring main unit permanent-magnet operating mechanism, comprise housing 1, housing 1 top and bottom are respectively equipped with upper cover plate 3 and lower cover 8, are provided with coil 7 in the housing 1, the center of coil 7 is provided with moving iron core 4, moving iron core 4 centers are connected with guide rod 9, and guide rod passes upper cover plate 3 and lower cover 8 respectively in two ends about in the of 9, and guide rod 9 upper ends are set with tripping spring 2, also be fixed with spring base 10 on the guide rod 9, tripping spring 2 is supported between spring base 10 and the upper cover plate 3; Coil 7 upsides also are provided with magnetic guiding loop 5, are provided with permanent magnet 6 between magnetic guiding loop 5 and the housing 1, and the body 402 of described moving iron core 4 is cylindrical, and described body 402 upper ends are provided with boss 401 radially, and boss 401 peripheries are equipped with in housing 1.
The utility model is not limited to above-described embodiment; on the basis of the disclosed technical scheme of the utility model; those skilled in the art is according to disclosed technology contents; do not need performing creative labour just can make some replacements and distortion to some technical characterictics wherein, these replacements and distortion are all in protection range of the present utility model.
Claims (2)
1. ring main unit permanent-magnet operating mechanism, comprise housing, the housing top and bottom are respectively equipped with upper cover plate and lower cover, be provided with coil in the housing, the center of coil is provided with moving iron core, and moving core center is connected with guide rod, guide rod passes upper cover plate and lower cover respectively in two ends up and down, the guide rod upper end is set with tripping spring, also is fixed with spring base on the guide rod, and tripping spring is supported between spring base and the upper cover plate; The coil upside also is provided with magnetic guiding loop, is provided with permanent magnet between magnetic guiding loop and the housing, it is characterized in that: the body of the moving iron core of described moving iron core is cylindrical, and described body upper end is provided with boss radially.
2. ring main unit permanent-magnet operating mechanism according to claim 1, it is characterized in that: described boss periphery is equipped with in housing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320128010 CN203192620U (en) | 2013-03-20 | 2013-03-20 | Permanent magnetic operating mechanism for ring main unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320128010 CN203192620U (en) | 2013-03-20 | 2013-03-20 | Permanent magnetic operating mechanism for ring main unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203192620U true CN203192620U (en) | 2013-09-11 |
Family
ID=49109459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320128010 Expired - Lifetime CN203192620U (en) | 2013-03-20 | 2013-03-20 | Permanent magnetic operating mechanism for ring main unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203192620U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578802A (en) * | 2013-11-14 | 2014-02-12 | 国家电网公司 | Permanent magnetic spring rectilinear motion device |
| CN107863258A (en) * | 2017-12-20 | 2018-03-30 | 浙江上图电气科技有限公司 | A kind of permanent magnet system device |
-
2013
- 2013-03-20 CN CN 201320128010 patent/CN203192620U/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103578802A (en) * | 2013-11-14 | 2014-02-12 | 国家电网公司 | Permanent magnetic spring rectilinear motion device |
| CN103578802B (en) * | 2013-11-14 | 2016-04-20 | 国家电网公司 | A kind of permanent magnetic spring linear motion device |
| CN107863258A (en) * | 2017-12-20 | 2018-03-30 | 浙江上图电气科技有限公司 | A kind of permanent magnet system device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term | ||
| CX01 | Expiry of patent term |
Granted publication date: 20130911 |