CN203562335U - Permanent magnetic spring rectilinear motion device - Google Patents
Permanent magnetic spring rectilinear motion device Download PDFInfo
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- CN203562335U CN203562335U CN201320717558.2U CN201320717558U CN203562335U CN 203562335 U CN203562335 U CN 203562335U CN 201320717558 U CN201320717558 U CN 201320717558U CN 203562335 U CN203562335 U CN 203562335U
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- magnetic spring
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- 230000033001 locomotion Effects 0.000 title claims abstract description 35
- 238000004804 winding Methods 0.000 claims abstract description 65
- 239000003990 capacitor Substances 0.000 claims abstract description 31
- XEEYBQQBJWHFJM-UHFFFAOYSA-N Iron Chemical group [Fe] XEEYBQQBJWHFJM-UHFFFAOYSA-N 0.000 claims abstract description 16
- 230000001939 inductive effect Effects 0.000 claims description 14
- 230000003068 static effect Effects 0.000 claims description 14
- 230000015572 biosynthetic process Effects 0.000 claims description 2
- 230000000694 effects Effects 0.000 abstract description 3
- 230000002153 concerted effect Effects 0.000 description 3
- 230000004888 barrier function Effects 0.000 description 2
- 230000007812 deficiency Effects 0.000 description 2
- 230000005484 gravity Effects 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 230000001360 synchronised effect Effects 0.000 description 2
- 230000009286 beneficial effect Effects 0.000 description 1
- 230000008901 benefit Effects 0.000 description 1
- 230000005540 biological transmission Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 238000006073 displacement reaction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000005520 electrodynamics Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000004907 flux Effects 0.000 description 1
- 230000007246 mechanism Effects 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
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- 229910052573 porcelain Inorganic materials 0.000 description 1
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Abstract
The utility model provides a permanent magnetic spring rectilinear motion device and is used for controlling the switching-on and switching-off of special switches of a switched capacitor set. The permanent magnetic spring rectilinear motion device comprises an end cover, permanent magnets, magnetic conductive blocks, a winding movable iron core and a base, the winding movable iron core is arranged in a cavity formed by the end cover and the base and along the central axis of the cavity, two ends of the winding movable iron core respectively penetrate through central through holes arranged on the end cover and the base, the magnetic conductive blocks are arranged around the winding movable iron core in the cavity, and the permanent magnets are arranged between the magnetic conductive blocks and magnet yokes of the inner wall of the end cover. The permanent magnetic spring rectilinear motion device is improved in that the winding movable iron core is provided with grooves vertical to the axis at intervals, and winding coils are arranged in the grooves. Compared with the prior art, the permanent magnetic spring rectilinear motion device is advantageous in that the problem of high mechanical dispersibility of the switches of the switched capacitor set is solved, the technical problem of short electrical endurance is indirectly solved, and a reference effect is provided for the subsequent research of the switched capacitor set switches with long electrical endurance.
Description
Technical field
The utility model relates to a kind of permanent magnetic spring linear motion device, is specifically related to one and is applied to three side 126kV opening-closing capacitor bank special switch permanent magnetic spring linear motion devices of ultra high voltage.
Background technology
According to state net, exchange the statistics of Construction Company, the frequency is up to 3～4 times ultra high voltage system opening-closing capacitor bank day at present, and the high frequency producing when dropping into capacitor group shoves and has a strong impact on the electrical endurance of capacitor group switching switch.
At present, what transmission line 126kV opening-closing capacitor bank switch mainly used is the LTB145D1/B type of Beijing ABB AB production and the LW25-126/145 type reactive power compensation SF6 porcelain knob breaker that Xi'an Xi electricity high-voltage switch gear Co., Ltd produces, these two kinds all develop on the basis of conventional line circuit breaker, during not specifically for opening-closing capacitor bank, the feature of switch electrical characteristic, mechanical property and operating condition is furtherd investigate, less stable.Therefore switch electric life is low, and replacement frequency is higher, has a strong impact on ultra high voltage system safety operation.
For the technical barrier of 126kV opening-closing capacitor bank switch electric life deficiency, domestic still in the discussion stage, tend at present adopt advanced synchronous control technique to solve the problem that switch electric life is low, and synchronous control technique requires the mechanical scatter of opening-closing capacitor bank Switch main body must be less than 1ms, operating mechanism is to cause the dispersed large key factor of switch machine.
Utility model content
In order to address the above problem, the utility model provides a kind of permanent magnetic spring linear motion device, for solving the dispersed large problem of opening-closing capacitor bank switch machine, and then indirectly solve the short technical barrier of electric life, be the opening-closing capacitor bank switch effect of offering reference of the high electric life of follow-up study simultaneously.
The purpose of this utility model is to adopt following technical proposals to realize:
A kind of permanent magnetic spring linear motion device that the utility model provides, described device is for controlling the closure of opening-closing capacitor bank special switch, comprise end cap, permanent magnet, magnetic inductive block, the moving iron core of winding and base, in the cavity of described end cap and base formation, and it is moving unshakable in one's determination along its central axis, described winding to be set, the central through hole that described end cap and base arrange is passed respectively at the moving two ends unshakable in one's determination of described winding; In described cavity, around the moving iron core of described winding, described magnetic inductive block is set, between described magnetic inductive block and end cap inwall yoke, be provided with described permanent magnet, its improvements are: on the moving iron core of described winding, be interval with the groove of vertical its axis, in described groove, winding coil be set.
Wherein, the moving top unshakable in one's determination of described winding arranges insulated tension pole, and described insulated tension pole passes the through hole of described end cap, and is connected with the connecting rod of opening-closing capacitor bank special switch.
Wherein, the moving bottom unshakable in one's determination of described winding arranges stressed bolt, and described stressed bolt passes the central through hole of described base, and at described cavity, adjusting nut and locking nut is set outward.
Wherein, between described adjusting nut and locking nut, be provided with tripping spring.
Wherein, described opening-closing capacitor bank special switch and the described winding moving-wire heart coaxially arrange, comprise insulating sleeve, static arc contact, fixed contact, moving arcing contact, moving contact and cabinet, in described insulating sleeve, along its central axis, from top to bottom set gradually described static arc contact and moving arcing contact, around described static arc contact and moving arcing contact, be respectively equipped with described fixed contact and moving contact, described insulating sleeve bottom is provided with cabinet, described cabinet is provided with the through hole corresponding with described end cap, and described permanent magnetic spring linear motion device is arranged in described cabinet.
Wherein, between described moving arcing contact and moving contact, be provided with described connecting rod.
Wherein, the central through hole diameter of described end cap and base is less than the moving diameter unshakable in one's determination of described winding, between the moving iron core of described base and winding, is provided with working gas gap.
Distance when wherein, described working gas gap is with opening-closing capacitor bank switch separating brake between fixed contact and moving contact equates.
Wherein, the quantity of described winding coil is greater than 1.
Wherein, described magnetic inductive block is cylinder type, and the moving external diameter unshakable in one's determination of described winding is less than described magnetic inductive block internal diameter.
Compared with prior art, the beneficial effect that the utility model reaches is:
1, within can be controlled at ± 1ms of this device dispersiveness.
This apparatus structure is simple, and drive disk assembly only has one, and adopts and be directly dynamically connected with Switch main body, and dispersiveness is less.
2, this device operating work is larger.
Owing to adopting winding coil to be wrapped in the new structure on moving iron core, meet the problem of Electromagnetically-operating merit deficiency under voltage levels switch large opening, long travel condition.
3, this apparatus structure is simple, and mechanical endurance is longer.
These device parts are few, and moving component only has one, and stability is strong.
Accompanying drawing explanation
Fig. 1 is: the structural representation of the permanent magnetic spring linear motion device that the utility model provides;
Fig. 2 is: the structural representation while having the 126kV opening-closing capacitor bank special switch separating brake of permanent magnetic spring linear motion device in Fig. 1;
Fig. 3 is: have permanent magnetic spring linear motion device in Fig. 1 126kV opening-closing capacitor bank special switch close a floodgate time structural representation;
Wherein: 1, end cap; 2, permanent magnet; 3, magnetic inductive block; 4, base; 5, tripping spring; 6, locking nut; 7, stressed bolt; 8, adjusting nut; 9, working gas gap; 10, winding coil; 11, winding is moving unshakable in one's determination; 12, insulated tension pole; 13, static arc contact; 14, fixed contact; 15, cabinet; 16, connecting rod; 17, moving arcing contact; 18, moving contact; 19, insulating sleeve; G, permanent magnetic spring linear motion device.
Embodiment
For above-mentioned purpose of the present utility model, feature and advantage can be become apparent more, below in conjunction with accompanying drawing, embodiment of the present utility model is described in further detail.
The present embodiment is take permanent magnetic spring linear motion device as example, as shown in Figure 1 to Figure 2, the permanent magnetic spring linear motion device that the utility model embodiment provides comprises: end cap 1, permanent magnet 2, magnetic inductive block 3, base 4, tripping spring 5, locking nut 6, stressed bolt 7, adjusting nut 8, working gas gap 9, winding coil 10, the moving iron core 11 of winding, insulated tension pole 12.
Winding moving unshakable in one's determination 11 is arranged in the cavity of end cap 1 and base 4, and at magnetic inductive block 3 in the inner chamber forming, winding coil 10 is embedded in moving unshakable in one's determination 11 the groove of winding, permanent magnet 2 is between end cap 1 inwall yoke and magnetic inductive block 3; The insulated tension pole 12 that winding 11 tops moving unshakable in one's determination arrange is connected with the connecting rod 16 of opening-closing capacitor bank special switch; Between moving 11 bottoms unshakable in one's determination of winding and base 4 inwalls, be provided with working gas gap 9, the working gas gap 9 interior movement of moving unshakable in one's determination 11 directions along insulated tension pole 12 of winding in cavity, and displacement distance between fixed contact 14 and moving contact 18 while equaling opening-closing capacitor bank special switch separating brake; Winding 11 bottom thread moving unshakable in one's determination connect stressed bolt 7, and tripping spring 5 is arranged on stressed bolt 7, and one end is fixing by locking nut 6, and the other end is fixing by adjusting nut 8.
Opening-closing capacitor bank special switch, as shown in Figure 2 to Figure 3, comprising: static arc contact 13, fixed contact 14, cabinet 15, connecting rod 16, moving arcing contact 17, moving contact 18, insulating sleeve 19.In insulating sleeve 19, along its central axis, be from top to bottom provided with successively static arc contact 13 and moving arcing contact 17, around static arc contact 13 and moving arcing contact 17, be respectively equipped with fixed contact 14 and moving contact 18, between moving arcing contact 17 and moving contact 18, be provided with connecting rod 16; Insulating sleeve 19 bottoms are provided with cabinet 15, and permanent magnetic spring linear motion device is arranged in cabinet 15.
Wherein, under initial condition, as shown in Figure 2, when not having pulse current to pass through in winding coil 10, winding moving unshakable in one's determination 11 in permanent magnetic spring linear motion device remains on bottom, the bottom of the cavity of making a concerted effort moving winding iron core 11 to remain on of stressed bolt 7 and tripping spring 5, insulated tension pole 12 also remains on the bottom of cavity under moving unshakable in one's determination 11 the effect of winding, and now the moving contact 18 of opening-closing capacitor bank special switch and moving arcing contact 17 remain on open position.
When giving permanent magnetic spring linear motion device feed motion signal, in winding coil 10, pass into direct impulse electric current, in the radial magnetic field now producing at permanent magnet 2, current-carrying winding coil 10 produces Lorentz force upwards, and tripping spring 5 produces to down spring in compressive state simultaneously.Along with the increase of direct impulse current value, winding coil 10 produces upwards Lorentz force and tripping spring 5 and produces to down spring and cancel out each other, when producing Lorentz force upwards in winding moving unshakable in one's determination 11 and be greater than tripping spring 5 and produce to down spring and winding moving unshakable in one's determination 11 and the downward gravity of insulated tension pole 12 and frictional force, it makes a concerted effort to drive winding moving unshakable in one's determination 11 upwards to do rectilinear motion together with insulated tension pole 12, stressed bolt 7, and then drives connecting rod 16, moving arcing contact 17 and moving contact 18 to be moved to closing position by open position.
When winding moving unshakable in one's determination 11 moves to upper end, 126kV opening-closing capacitor bank special switch is in closing position.The pulse current cut-off of winding coil 10, now permanent magnet 2 move unshakable in one's determination 11, end cap 1 by winding and yoke row becomes flux path, and then moving 11 generations unshakable in one's determination of winding static confining forces upwards.This static state confining force is greater than the electrodynamic repulsion force between winding moving unshakable in one's determination 11 and downward gravity and the switch contact of insulated tension pole 12, finally makes opening-closing capacitor bank special switch remain on closing position, as shown in Figure 3.
When giving permanent magnetic spring linear motion device separating brake actuating signal, winding coil 10 passes into reverse impulse electric current, in the radial magnetic field now producing at permanent magnet 2, current-carrying winding coil 10 produces downward Lorentz force, simultaneously produces upwards static confining force and tripping spring 5 with winding moving unshakable in one's determination 11 and produces to down spring and cancel out each other; When reverse impulse electric current reaches certain value, winding coil 10 produces downward Lorentz force and tripping spring 5 produces the upwards static confining force of moving 11 generations unshakable in one's determination of winding of making a concerted effort to be greater than to down spring, now winding moving unshakable in one's determination 11 and insulated tension pole 12 drive connecting rod 16, moving arcing contact 17, the moving contact 18 of opening-closing capacitor bank special switch to move downward with certain speed, and now opening-closing capacitor bank special switch is moved to open position by closing position.
Finally should be noted that: above embodiment is only in order to illustrate that the technical solution of the utility model is not intended to limit, although the utility model is had been described in detail with reference to above-described embodiment, those of ordinary skill in the field are to be understood that: still can modify or be equal to replacement embodiment of the present utility model, and do not depart from any modification of the utility model spirit and scope or be equal to replacement, it all should be encompassed in the middle of claim scope of the present utility model.
Claims (10)
1. a permanent magnetic spring linear motion device, described device is for controlling the closure of opening-closing capacitor bank special switch, comprise end cap, permanent magnet, magnetic inductive block, the moving iron core of winding and base, in the cavity of described end cap and base formation, and it is moving unshakable in one's determination along its central axis, described winding to be set, the central through hole that described end cap and base arrange is passed respectively at the moving two ends unshakable in one's determination of described winding; In described cavity, around the moving iron core of described winding, described magnetic inductive block is set, between described magnetic inductive block and end cap inwall yoke, be provided with described permanent magnet, it is characterized in that: on the moving iron core of described winding, be interval with the groove of vertical its axis, in described groove, winding coil be set.
2. permanent magnetic spring linear motion device as claimed in claim 1, is characterized in that: the moving top unshakable in one's determination of described winding arranges insulated tension pole, and described insulated tension pole passes the through hole of described end cap, and is connected with the connecting rod of described opening-closing capacitor bank special switch.
3. permanent magnetic spring linear motion device as claimed in claim 1, is characterized in that: the moving bottom unshakable in one's determination of described winding arranges stressed bolt, and described stressed bolt passes the central through hole of described base, and at described cavity, adjusting nut and locking nut is set outward.
4. permanent magnetic spring linear motion device as claimed in claim 3, is characterized in that: between described adjusting nut and locking nut, be provided with tripping spring.
5. permanent magnetic spring linear motion device as claimed in claim 2, it is characterized in that: described opening-closing capacitor bank special switch and the described winding moving-wire heart coaxially arrange, comprise insulating sleeve, static arc contact, fixed contact, moving arcing contact, moving contact and cabinet, in described insulating sleeve, along its central axis, from top to bottom set gradually described static arc contact and moving arcing contact, around described static arc contact and moving arcing contact, be respectively equipped with described fixed contact and moving contact, described insulating sleeve bottom is provided with cabinet, described cabinet is provided with the through hole corresponding with described end cap, described permanent magnetic spring linear motion device is arranged in described cabinet.
6. permanent magnetic spring linear motion device as claimed in claim 5, is characterized in that: between described moving arcing contact and moving contact, be provided with described connecting rod.
7. permanent magnetic spring linear motion device as claimed in claim 1, is characterized in that: the central through hole diameter of described end cap and base is less than the moving diameter unshakable in one's determination of described winding, between the moving iron core of described base and winding, is provided with working gas gap.
8. permanent magnetic spring linear motion device as claimed in claim 7, is characterized in that: described working gas gap during with opening-closing capacitor bank switch separating brake the distance between fixed contact and moving contact equate.
9. permanent magnetic spring linear motion device as claimed in claim 1, is characterized in that: the quantity of described winding coil is greater than 1.
10. permanent magnetic spring linear motion device as claimed in claim 1, is characterized in that: described magnetic inductive block is cylinder type, and the moving external diameter unshakable in one's determination of described winding is less than described magnetic inductive block internal diameter.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320717558.2U CN203562335U (en) | 2013-11-14 | 2013-11-14 | Permanent magnetic spring rectilinear motion device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201320717558.2U CN203562335U (en) | 2013-11-14 | 2013-11-14 | Permanent magnetic spring rectilinear motion device |
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| Publication Number | Publication Date |
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| CN203562335U true CN203562335U (en) | 2014-04-23 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201320717558.2U Expired - Lifetime CN203562335U (en) | 2013-11-14 | 2013-11-14 | Permanent magnetic spring rectilinear motion device |
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| CN (1) | CN203562335U (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 |
| CN105552482A (en) * | 2016-02-05 | 2016-05-04 | 中国电子科技集团公司第四十研究所 | Microwave switch electromagnetic driving device |
-
2013
- 2013-11-14 CN CN201320717558.2U patent/CN203562335U/en not_active Expired - Lifetime
Cited By (4)
| 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 |
| CN105552482A (en) * | 2016-02-05 | 2016-05-04 | 中国电子科技集团公司第四十研究所 | Microwave switch electromagnetic driving device |
| CN105552482B (en) * | 2016-02-05 | 2019-07-16 | 中国电子科技集团公司第四十研究所 | Microwave switch electromagnetic actuator device |
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| Date | Code | Title | Description |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
Granted publication date: 20140423 |
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| CX01 | Expiry of patent term |