CN203587749U - Portable intelligent switch board - Google Patents

Portable intelligent switch board Download PDF

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Publication number
CN203587749U
CN203587749U CN201320796632.4U CN201320796632U CN203587749U CN 203587749 U CN203587749 U CN 203587749U CN 201320796632 U CN201320796632 U CN 201320796632U CN 203587749 U CN203587749 U CN 203587749U
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CN
China
Prior art keywords
hand
contactor
button
overcurrent relay
normally closed
Prior art date
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Active
Application number
CN201320796632.4U
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Chinese (zh)
Inventor
范乃心
孙艳鹤
李刚
金鑫
杨雪滨
李岩
程明
王健
郑迤丹
刘淼
焦懿
毕疆
田野
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.)
MAINTENANCE BRANCH LIAONING POWER CO Ltd
State Grid Corp of China SGCC
Original Assignee
MAINTENANCE BRANCH LIAONING POWER CO Ltd
State Grid Corp of China SGCC
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Application filed by MAINTENANCE BRANCH LIAONING POWER CO Ltd, State Grid Corp of China SGCC filed Critical MAINTENANCE BRANCH LIAONING POWER CO Ltd
Priority to CN201320796632.4U priority Critical patent/CN203587749U/en
Application granted granted Critical
Publication of CN203587749U publication Critical patent/CN203587749U/en
Active legal-status Critical Current
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Abstract

The utility model provides a portable intelligent switch board. The switch board comprises a knife switch, an electric shock protector, a normally open button, a normally closed button, an alternating current contactor and an overcurrent relay. The knife switch is connected with the alternating current contactor. The alternating current contactor is connected with a wire outgoing end on one hand, and is connected with the overcurrent relay on the other hand. The normally open button is connected between the knife switch and the alternating current contactor on one hand, is connected in series with the normally closed button and then is connected with the overcurrent relay on the other hand. The overcurrent relay is connected with the wire outgoing end. According to the utility model, a people can be protected from electric shock; a test device can be protected from overcurrent; through the added electric shock protector and overcurrent relay, two functions are realized; if short circuit occurs during a test process, timely outage can be carried out; and automatic current file adjusting can be realized.

Description

Portable intelligent switching motherboard
Technical field
The utility model relates to a kind of portable intelligent switching motherboard.
Background technology
Power supply is as the power-supply unit of all test apparatuses, and except performance will meet the required requirement of instrument, the safeguard measure of himself is also extremely important.Loaded down with trivial details for wiring such as AC voltage withstand test, use the many and dangerous higher test of instrument component, easy, safety and reliably power supply, can not only simplify, and more can, when ensuring personal safety, avoid the damage to test apparatus and equipment.The socket, the insert row that in existing high-potting, use, most function singleness, and do not possess perfect defencive function, lack the protection to staff's person and device security.The socket using in high-potting is now traditional socket or simple single-pole switch, only has the function of simple electric energy transmitting, for personnel and equipment, without any defencive function, under the overall situation that people-oriented instantly, is obviously inappropriate.Especially for the high-tension testing crew of frequent contact, design and aly there is the safe and reliable switching motherboard of multiple protector and just seemed necessity very.
Summary of the invention
Utility model object: the utility model provides a kind of portable intelligent switching motherboard, its objective is that solution equipment in the past does not possess perfect defencive function, lacks the problem to the protection of staff's person and device security.
Technical scheme: the utility model is achieved through the following technical solutions:
Portable intelligent switching motherboard, is characterized in that: this switching motherboard comprises disconnecting link, earth leakage protector, often drives button, normally closed button, A.C. contactor and overcurrent relay; Disconnecting link is connected to A.C. contactor, and A.C. contactor is connected to leading-out terminal on the one hand, is connected on the other hand overcurrent relay; Drive button and be connected on the one hand between disconnecting link and stream contactor, after connecting on the other hand, be connected to overcurrent relay with normally closed button, overcurrent relay is connected to leading-out terminal; Disconnecting link, earth leakage protector, often drive button, normally closed button, A.C. contactor and overcurrent relay and be all arranged in casing, in casing, be provided with guidance panel, disconnecting link, often open button, normally closed button, leading-out terminal and incoming end and be all arranged on guidance panel; In the upper end of casing, be the case lid that can open, on case lid, be provided with handle; When closing, case lid forms integral body by buckle and casing.
Between disconnecting link and A.C. contactor, be also connected to pilot lamp.
Overcurrent relay consists of coil and another normally closed button, and coil is connected to and is often driven button and normally closed button by A.C. contactor on the one hand, is connected on the other hand leading-out terminal; Another normally closed button connects normally closed button on the one hand; By A.C. contactor, be connected between disconnecting link and A.C. contactor on the other hand.
At this switching motherboard, obtain leading-out terminal place and be also provided with voltage table.
Advantage and effect: the utility model provides a kind of portable intelligent switching motherboard, this switching motherboard comprises disconnecting link, earth leakage protector, often drives button, normally closed button, A.C. contactor and overcurrent relay; Disconnecting link is connected to A.C. contactor, and A.C. contactor is connected to leading-out terminal on the one hand, is connected on the other hand overcurrent relay; Drive button and be connected on the one hand between disconnecting link and stream contactor, after connecting on the other hand, be connected to overcurrent relay with normally closed button, overcurrent relay is connected to leading-out terminal.
Protection to personnel when the personnel of the utlity model has get an electric shock, the protection to equipment while also thering is testing equipment generation excess current, the realization of these two functions is to be realized by the earth leakage protector installing additional and overcurrent relay.If be short-circuited in test process, power-off in time.Can also adjust voluntarily current gear.
accompanying drawing explanation:
Fig. 1 is structural representation of the present utility model;
Fig. 2 is guidance panel schematic diagram of the present utility model;
Fig. 3 is side schematic view of the present utility model.
embodiment:below in conjunction with accompanying drawing, the utility model is described further:
As shown in Figure 1, the utility model provides a kind of portable intelligent switching motherboard, and this switching motherboard comprises disconnecting link 1, earth leakage protector 2, often drives button 4, normally closed button 5, A.C. contactor 6 and overcurrent relay 7; Disconnecting link 1 is connected to A.C. contactor 6, and A.C. contactor 6 is connected to leading-out terminal on the one hand, is connected on the other hand overcurrent relay 7; Drive button 4 and be connected on the one hand between disconnecting link 1 and stream contactor 6, after connecting on the other hand, be connected to overcurrent relay 7 with normally closed button 5, overcurrent relay 7 is connected to leading-out terminal; Disconnecting link 1, earth leakage protector 2, often drive button 4, normally closed button 5, A.C. contactor 6 and overcurrent relay 7 and be all arranged in casing 111, in casing 111, be provided with guidance panel 222, disconnecting link 1, often open button 4, normally closed button 5, leading-out terminal and incoming end and be all arranged on guidance panel 222; In the upper end of casing 111, be the case lid 333 that can open, on case lid 333, be provided with handle; When case lid 333 closes, by buckle and casing 111, form whole.
Between disconnecting link 1 and A.C. contactor 6, be also connected to pilot lamp 3.
Overcurrent relay 7 consists of coil and another normally closed button, and coil is connected to and is often driven button 4 and normally closed button 5 by A.C. contactor 6 on the one hand, is connected on the other hand leading-out terminal; Another normally closed button connects normally closed button 5 on the one hand.By A.C. contactor 6, be connected between disconnecting link 1 and A.C. contactor 6 on the other hand.
At this switching motherboard, obtain leading-out terminal place and be also provided with voltage table 8.
When the utility model is used, portable handle, carries the utility model to assigned address, and then opening case lid 333 can operate.
The socket using in high-potting is now traditional socket or simple single-pole switch, only has the function of simple electric energy transmitting, for personnel and equipment, without any defencive function, under the overall situation that people-oriented instantly, is obviously inappropriate.Especially for the high-tension testing crew of frequent contact, design and aly there is the safe and reliable switching motherboard of multiple protector and just seemed necessity very.Defencive function to personnel when portable intelligent switching motherboard had both had personnel and gets an electric shock, the defencive function to equipment while also thering is testing equipment generation excess current, the realization of these two functions is to be realized by the earth leakage protector installing additional and overcurrent relay.
earth leakage protector
Earth leakage protector is mainly comprised of three parts: detecting element, middle amplifying element, operation topworks.The principle of work of earth leakage protector is that earth leakage protector is installed in the line, and primary winding is connected with the circuit of electrical network, and secondary coil is connected with the electrical apparatus release in earth leakage protector.When consumer normally moves, in circuit, electric current is equilibrium state, and in mutual inductor, current phasor sum is zero.Owing to there is no residual current in primary winding, so can not respond to secondary coil, the switchgear of earth leakage protector moves in closure state.When device housings occurs leak electricity and have people to touch, in trouble spot, produce shunting, this leakage current is through human body-the earth-working earthing, return to transformer neutral point, this part electric current current transformer of not flowing through, cause in mutual inductor the electric current that flows into, flows out to occur imbalance, current phasor sum is non-vanishing, produces residual current in primary winding.Therefore, just can respond to secondary coil, when this current value reaches the action current value of this earth leakage protector restriction, automatic switch is threaded off, and cuts off the electricity supply.
Earth leakage protector in portable intelligent switching motherboard is installed at the outgoing line side of the end of incoming cables disconnecting link of switching motherboard; the electric shock occurring for the charged live wire of personnel's false touch in process of the test has good protective effect; but to contact personnel's unprotect effect of live wire and zero line simultaneously; be there is in test to also unprotect effect of excess current in testing equipment; therefore just need to install another kind of protective device, i.e. overcurrent relay additional.
overcurrent relay
The operating principle of overcurrent relay is combined type, and it is comprised of two elements of induction type and electromagnetic type, two public coils of element.When coil passes to alternating current, in the electromagnet of sensing element, phase shift effect due to short-circuited conducting sleeve, produce two magnetic fluxs that phase place is different, this magnetic flux and its vortex interaction of responding in aluminium dish, generation electromagnetic force is known makes aluminium disc spins, when electric current increases to setting current, electromagnetic torque is greater than the moment of reaction of spring, aluminum frame rotates, fan tooth and worm screw interlock, and rise along with worm screw rotation, its push rod promotes the moving iron of electromagnetic component, when the air gap between moving iron and electromagnet is reduced to a certain degree, moving iron is by adhesive, the top board of moving iron afterbody promotes junction closure.
Overcurrent relay in portable intelligent switching motherboard is arranged on the leading-out terminal of switching motherboard, and accesses in the switch control circuit of switching motherboard.When something unexpected happened; as cause current surge in loop; surpass overcurrent relay definite value time; the normally closed contact of overcurrent relay will disconnect; contactor loop has also just disconnected, and contactor will dead electricity like this, and contactor is disconnected; and then make switching motherboard power-off, reach the protective effect to equipment and personnel.
integrated design
Portable intelligent switching motherboard adopts integrated design, not only has good protective effect, has also had voltage table and pilot lamp integrated, makes the process of high-potting easier, quick and safety.Before high-potting starts, according to relevant rules requirement, need to measure supply voltage, guarantee that supply voltage is consistent with testing equipment required voltage, ordinary test equipment needs the voltage of 220V, and in connecing the process of power supply, likely occur wiring error, making output voltage is line voltage, causes supply voltage too high, and burn out equipment, cause unnecessary economic loss.
Portable intelligent switching motherboard has installed voltage table additional at leading-out terminal, before test, needn't carry out again the work of measuring voltage, only need check the measurement numerical value of voltage table on socket for high-potting, avoided carrying too much equipment simultaneously and connect and take out stitches frequently, reduced test procedure, improved test efficiency, portable intelligent switching motherboard has also installed pilot lamp additional, can accurately reflect the whether charged of switching motherboard, prompting personnel in use take care.Meanwhile, can also be by the coordinating of pilot lamp and voltage table, the position while confirming switching motherboard fault.For example, can avoid when pilot lamp damages, think the not charged and situation of wiring or false touch switch electrified body repeatedly of switching motherboard by mistake.

Claims (4)

1. portable intelligent switching motherboard, is characterized in that: this switching motherboard comprises disconnecting link (1), earth leakage protector (2), often drives button (4), normally closed button (5), A.C. contactor (6) and overcurrent relay (7); Disconnecting link (1) is connected to A.C. contactor (6), and A.C. contactor (6) is connected to leading-out terminal on the one hand, is connected on the other hand overcurrent relay (7); Drive button (4) and be connected on the one hand between disconnecting link (1) and stream contactor (6), after connecting on the other hand, be connected to overcurrent relay (7) with normally closed button (5), overcurrent relay (7) is connected to leading-out terminal; Disconnecting link (1), earth leakage protector (2), often drive button (4), normally closed button (5), A.C. contactor (6) and overcurrent relay (7) and be all arranged in casing (111), in casing (111), be provided with guidance panel (222), disconnecting link (1), often open button (4), normally closed button (5), leading-out terminal and incoming end and be all arranged on guidance panel (222); In the upper end of casing (111), be the case lid (333) that can open, on case lid (333), be provided with handle; When case lid (333) closes, by buckle and casing (111), form whole.
2. portable intelligent switching motherboard according to claim 1, is characterized in that: between disconnecting link (1) and A.C. contactor (6), be also connected to pilot lamp (3).
3. portable intelligent switching motherboard according to claim 1, it is characterized in that: overcurrent relay (7) consists of coil and another normally closed button, coil is connected to and is often driven button (4) and normally closed button (5) by A.C. contactor (6) on the one hand, is connected on the other hand leading-out terminal; Another normally closed button connects normally closed button (5) on the one hand; By A.C. contactor (6), be connected between disconnecting link (1) and A.C. contactor (6) on the other hand.
4. portable intelligent switching motherboard according to claim 1, is characterized in that: at this switching motherboard, obtain leading-out terminal place and be also provided with voltage table (8).
CN201320796632.4U 2013-12-09 2013-12-09 Portable intelligent switch board Active CN203587749U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201320796632.4U CN203587749U (en) 2013-12-09 2013-12-09 Portable intelligent switch board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201320796632.4U CN203587749U (en) 2013-12-09 2013-12-09 Portable intelligent switch board

Publications (1)

Publication Number Publication Date
CN203587749U true CN203587749U (en) 2014-05-07

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ID=50585649

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201320796632.4U Active CN203587749U (en) 2013-12-09 2013-12-09 Portable intelligent switch board

Country Status (1)

Country Link
CN (1) CN203587749U (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106486964A (en) * 2016-12-19 2017-03-08 贺州学院 A kind of Intelligent socket

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106486964A (en) * 2016-12-19 2017-03-08 贺州学院 A kind of Intelligent socket

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