CN203850700U - Movable-type switch device - Google Patents

Movable-type switch device Download PDF

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Publication number
CN203850700U
CN203850700U CN201420204044.1U CN201420204044U CN203850700U CN 203850700 U CN203850700 U CN 203850700U CN 201420204044 U CN201420204044 U CN 201420204044U CN 203850700 U CN203850700 U CN 203850700U
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CN
China
Prior art keywords
cabinet
circuit breaker
breaker cart
breaker handcart
movable
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Active
Application number
CN201420204044.1U
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Chinese (zh)
Inventor
杨勇
王丽杰
钟道文
潘柯
汤敏
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
SEAC GROUP Co Ltd
Original Assignee
SEAC GROUP Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by SEAC GROUP Co Ltd filed Critical SEAC GROUP Co Ltd
Priority to CN201420204044.1U priority Critical patent/CN203850700U/en
Application granted granted Critical
Publication of CN203850700U publication Critical patent/CN203850700U/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Abstract

The utility model discloses a movable-type switch device. The movable-type switch device comprises a cabinet body and a breaker handcart, and is characterized in that the breaker handcart is disposed in the cabinet body, a chassis cart is disposed on the bottom of the breaker handcart, the rear end of the chassis cart is provided with a thickened tongue plate, positioning clamp slots are disposed in the cabinet body which is at two sides of the tongue plate and in the travelling direction of the breaker handcart, a positioning pin is arranged on the right end of the chassis cart, and a positioning hole corresponding to the positioning pin is disposed inside the cabinet body. According to the movable-type switch device, with adoption of the tongue plate and the positioning clamp slots at the two sides of the tongue plate, stable movements of the breaker handcart inside the cabinet body are ensured, and tip-over of the breaker handcart is effectively prevented; and, with utilization of the positioning pin, insertion and alignment of a moving contact and a cabinet static contact are accurate, thereby reducing heat generated during work.

Description

A kind of withdrawing switch apparatus
Technical field
The utility model relates to power distribution equipment, relates in particular to a kind of withdrawing switch apparatus.
Background technology
Switchgear is as the complete power distribution equipment of one; be mainly used in power plant, medium and small generator power transmission, industrial and mineral enterprises and institutions distribution and electric power system secondary substation be subject to electricity, power transmission and Large-scale High-Pressure motor etc., it is carried out to the use of controlling protection, monitoring.The capacity requirement of switching devices, is the determining positions in electric power system according to it, the closer to the switchgear of generator outlet end (being power end), requires higher capacity, i.e. large rated current and high connecting-disconnecting function.
Switchgear comprises cabinet and first and second element, and primary element, for from system reception, electric energy transmitting stage load power supply downwards, is guaranteed the safe ready of interruption maintenance simultaneously, and provided primary element voltage, current signal to secondary component.Wherein the circuit breaker cart in withdrawing switch apparatus is most important primary element, is called as the heart of switchgear.Secondary component is for controlling, protect and monitor primary element.
Improving rated current increases the heating of switchgear, for ensureing that in switchgear, each several part temperature rise is no more than standard value, the heat radiation of switching devices requires more harsh, the electric power that the increase of current-carrying part quality and rated short circuit drop-out current cause after improving simultaneously strengthens, require cabinet to have higher intensity, circuit breaker cart in primary element is owing to moving in switchgear, the increase of weight causes the motion of circuit breaker cart more unstable, in addition weight mainly concentrates on handcart front end, and handcart has the possibility of tumbling in progradation.
Utility model content
The technical assignment of technical problem to be solved in the utility model and proposition is that prior art is improved, a kind of withdrawing switch apparatus is provided, and easily there is the problem of tumbling in the circuit breaker cart that solves withdrawing switch apparatus traditional in current technology in switchgear in progradation.
For solving above technical problem, the technical solution of the utility model is:
A kind of withdrawing switch apparatus, comprise cabinet and circuit breaker cart, it is characterized in that, described circuit breaker cart is positioned at cabinet, the bottom of circuit breaker cart is provided with chassis vehicle, and chassis vehicle rear end is provided with thickening type hyoplastron, in the both sides cabinet of circuit breaker cart direct of travel hyoplastron, is provided with locating groove, the front end of chassis vehicle is provided with alignment pin, is provided with corresponding location hole in cabinet.The utility model arranges locating groove in the both sides of circuit breaker cart hyoplastron, thereby effectively limit the direct of travel of circuit breaker cart, play the effect that prevents that circuit breaker cart from toppling in traveling process, the stability when improving circuit breaker cart and impacted by the electric power that caused by failure on-off in switch cabinet body simultaneously.The increase of alignment pin, it is more accurate to align pegging graft in the fixed contact motion on the moving contact and the cabinet that contribute on handcart, impels both to contact intact, the heating while being conducive to reduce work.
Further, upper moving contact and the lower moving contact of described circuit breaker cart run through fluting, and ventilation and heat while being both conducive to work has reduced again moving contact weight simultaneously, contributes to the proal stability of handcart.
Further, described cabinet top is provided with blower fan, on the decompression cover at the front lower panel of cabinet, rear lower shrouding and top, be provided with ventilation slot, above layout makes to form in cabinet the air blast cooling pattern of lower air intake, upper air draft, contributes to the heat radiation in cabinet.
Further, all buses in described cabinet adopt several insulators to support, and shorten and support span, are conducive to improve intensity and the dynamic stability of whole switchgear.
Compared with prior art, the utility model advantage is:
Withdrawing switch apparatus described in the utility model utilizes the locating groove of hyoplastron and its both sides to ensure the easy motion of circuit breaker cart in cabinet, effectively prevent from tumbling, utilize alignment pin, making to peg graft in the motion of moving contact and cabinet static contact, it is more accurate to align, minimizing work heating, the result of ventilating heat dissipation of cabinet is good, guarantees that in scope that the temperature rise of each parts specifies in standard, switchgear can tolerate the intense impact of peak electricity power; Withdrawing switch apparatus described in the utility model is simple in structure, is easy to manufacture, and production cost is low, is applicable to large-scale production.
Brief description of the drawings
Fig. 1 is structural representation of the present utility model;
Fig. 2 is the structural representation of details A alignment pin in Fig. 1;
Fig. 3 is the structural representation of upper and lower moving contact.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the utility model embodiment is clearly and completely described, obviously, described embodiment is only the utility model part embodiment, instead of whole embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not making the every other embodiment obtaining under creative work prerequisite, all belong to the scope of the utility model protection.
The disclosed a kind of withdrawing switch apparatus of the utility model embodiment, ensures handcart easy motion in cabinet, and the result of ventilating heat dissipation of cabinet is good, guarantees that in scope that the temperature rise of each parts specifies in standard, cabinet can tolerate the intense impact of peak electricity power.
As shown in Figure 1 to Figure 3, a kind of withdrawing switch apparatus, comprise cabinet 1 and circuit breaker cart 2, circuit breaker cart 2 is positioned at cabinet 1, the bottom of circuit breaker cart 2 is provided with chassis vehicle 3, chassis vehicle 3 rear ends are provided with thickening type hyoplastron 4, in the both sides cabinet 1 of circuit breaker cart 2 direct of travel hyoplastrons 4, be provided with locating groove, hyoplastron snaps onto after the locating groove in cabinet, drive again chassis vehicle, handcart is moved to service position, the front end of chassis vehicle 3 is provided with alignment pin 5, in cabinet 1, be provided with corresponding location hole, utilize alignment pin to guarantee that the moving contact of handcart and the grafting of the fixed contact of cabinet align, impel both to contact intact, heating when minimizing work.
Chassis vehicle 3 front ends lengthen simultaneously, and because the leading portion of chassis vehicle is mounted with the components and parts such as handcart moving contact and pole, handcart center of gravity is near front end, and handcart is easily tumbled in moving process in cabinet.Chassis vehicle front end will make to move after handcart center of gravity after lengthening, and be conducive to the proal stability of handcart.
Upper moving contact 6 and the lower moving contact 7 of circuit breaker cart 2 run through fluting, reduce the weight of circuit breaker cart 2 front ends, improve the proal stability of handcart, and are conducive to ventilation and heat.
Cabinet 1 top is provided with blower fan 8; on the decompression cover 11 at the front lower panel 9 of cabinet, rear lower shrouding 10 and top, be provided with ventilation slot, utilize ventilation slot and blower fan to form a cooling system, lower air intake, upper air draft; improve the thermal diffusivity of cabinet, the components and parts in protection cabinet.
Several insulator 13 supporting bus 12 of increase in cabinet 1, shorten and support span, improve structural strength and the dynamic stability of cabinet switchgear.
The operation principle of withdrawing switch apparatus described in the utility model: circuit breaker cart 2 is pushed into after switchgear, chassis vehicle 3 hyoplastron 4 both sides snap in the locating groove of cabinet both sides, after circuit breaker cart 2 separating brakes, just can drive circuit breaker cart 2 to march to service position, the circuit breaker that now closes enters operating state.Primary power source is introduced in cabinet by main bus bar, through branch bus, upper static contact 14, by the upper moving contact 6 of pegging graft with upper static contact 14, the current-carrying part of pole 16, from lower moving contact 7 through fixed contact 15, front end branch bus cause current transformer 17, being fed out through the sleeve pipe that is positioned at cabinet top by rear end branch bus, is the power supply of next stage load again.In the time that protected circuit or equipment conventional maintenance or operation irregularity need power-off maintenance even meet with short trouble; circuit breaker will be activated tripping operation; circuit breaker cart after separating brake can be withdrawn into test position or be pulled to outside cabinet by driving, so that overhaul of the equipments or removing fault.
Below be only preferred implementation of the present utility model, it should be pointed out that above-mentioned preferred implementation should not be considered as restriction of the present utility model, protection range of the present utility model should be as the criterion with claim limited range.For those skilled in the art, not departing from spirit and scope of the present utility model, can also make some improvements and modifications, these improvements and modifications also should be considered as protection range of the present utility model.

Claims (4)

1. a withdrawing switch apparatus, comprise cabinet (1) and circuit breaker cart (2), it is characterized in that, described circuit breaker cart (2) is positioned at cabinet (1), the bottom of circuit breaker cart (2) is provided with chassis vehicle (3), chassis vehicle (3) rear end is provided with thickening type hyoplastron (4), in the both sides cabinet (1) of circuit breaker cart (2) direct of travel hyoplastron (4), be provided with locating groove, the front end of chassis vehicle (3) is provided with alignment pin (5), and cabinet is provided with corresponding location hole in (1).
2. withdrawing switch apparatus according to claim 1, is characterized in that, upper moving contact (6) and the lower moving contact (7) of described circuit breaker cart (2) run through fluting.
3. withdrawing switch apparatus according to claim 1, it is characterized in that, described cabinet (1) top is provided with blower fan (8), on the decompression cover (11) at front lower panel (9), rear lower shrouding (10) and the top of cabinet, is provided with ventilation slot.
4. withdrawing switch apparatus according to claim 1, is characterized in that, all buses (12) in described cabinet (1) adopt several insulators (13) to support, and shortens and supports span.
CN201420204044.1U 2014-04-24 2014-04-24 Movable-type switch device Active CN203850700U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201420204044.1U CN203850700U (en) 2014-04-24 2014-04-24 Movable-type switch device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201420204044.1U CN203850700U (en) 2014-04-24 2014-04-24 Movable-type switch device

Publications (1)

Publication Number Publication Date
CN203850700U true CN203850700U (en) 2014-09-24

Family

ID=51563672

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201420204044.1U Active CN203850700U (en) 2014-04-24 2014-04-24 Movable-type switch device

Country Status (1)

Country Link
CN (1) CN203850700U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105977854A (en) * 2016-06-22 2016-09-28 四川电器集团股份有限公司 Compact switch device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN105977854A (en) * 2016-06-22 2016-09-28 四川电器集团股份有限公司 Compact switch device

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