CN206850264U

CN206850264U - A kind of novel energy-conserving light distribution box

Info

Publication number: CN206850264U
Application number: CN201720423221.9U
Authority: CN
Inventors: 焦红超; 刘军文; 刘万山; 苏海丽; 秦娜娜; 石晓义; 杨浩亮
Original assignee: China Sinogy Electric Engineering Co Ltd
Current assignee: China Sinogy Electric Engineering Co Ltd
Priority date: 2017-04-21
Filing date: 2017-04-21
Publication date: 2018-01-05
Anticipated expiration: 2027-04-21

Abstract

Electrical equipment technical field is the utility model is related to, specifically a kind of novel energy-conserving light distribution box, it is characterised in that：Connected in L1, L2, L3 phase line between breaker and the output end in incoming power loop distribution box contactor auxiliary contact；Automatic power-off circuit includes single-phase current transformer module, determining device；Described single-phase current transformer module includes three single-phase current transformers of collection power supply three-phase current, and three single-phase current transformers are also respectively connected with three overcurrent relays；Determining device, it is corresponded and connected with the other three normally opened contact of distribution box contactor auxiliary contact and the coil of three time-delay relays successively by the normally closed auxiliary contact of three groups of overcurrent relays in parallel, and the coil after being then sequentially connected in series between the normally opened contact of three time-delay relays again with auxiliary reclay KA1 is connected.The utility model compared with prior art, both saves electric energy, can extend the service life of electrical equipment again.

Description

A kind of novel energy-conserving light distribution box

Technical field

Electrical equipment technical field is the utility model is related to, specifically a kind of novel energy-conserving light distribution box.

Background technology

According to investigations, the family appliance standby phenomenon in China is very universal, has nearly seventy percent family using not closing power supply after household electrical appliances, Three into more citizen may not even be aware that it is standby also can power consumption.In fact, if attaching plug does not pull out, the electrical equipment for connecting plug just needs Function consumes.Only come off duty and be not related to display, printer, the whole nation will waste 1,200,000,000 degree of electricity every year；National air-conditioning treats function every year Consumption reaches more than 3,000,000,000 degree；1 year standby power consumption of national water dispenser must not neglect standby energy consumption " power consumption " up to 13,700,000,000 degree, Fall country's tens billion of degree electricity electric appliance standby year " eating "！Standby energy consumption is a kind of energy waste, figuratively, standby just as family Tap is not fastened, and 20% electricity charge waste with regard to this！

A kind of energy-saving lighting distribution box of design is so needed badly, come from electric energy is largely saved, for example, working as office When interior total power consumption is less than certain value, light distribution box just automatically powers off.So as to reach cost-effective effect.

Utility model content

The purpose of this utility model is according to the design needs of energy-saving lighting distribution box, by being set in former light distribution box The function of putting some controlling organizations to realize light distribution box power transmission He automatically power off.

Above-mentioned purpose is realized, designs a kind of novel energy-conserving light distribution box, including casing, incoming power loop；Described The circuit breaker Q F that L1, L2, L3 phase line of the incoming power loop including three phase mains inlet wire and three phase mains inlet wire is in series, its It is characterised by：

Also include manually operated loop, the automatic power-off circuit being arranged in casing；

Described manually operated loop is L1, L2, L3 phase between circuit breaker Q F and the output end in incoming power loop Connect distribution box contactor auxiliary contact KM on line；By the start button QA of normally opened contact and distribution box contactor auxiliary contact KM A normally opened contact parallel connection after the stop button TA with a normally-closed contact, auxiliary reclay KA1 normally-closed contact successively again And distribution box contactor auxiliary contact KM coil series connection, formed for manually booting and the loop of manual deenergization；

Described automatic power-off circuit includes single-phase current transformer module, determining device；

Described single-phase current transformer module is three single-phase current transformers LA1, LA2, LA3 primary side difference L1, L2, the L3 to connect one to one in incoming power loop between circuit breaker Q F and distribution box contactor auxiliary contact KM Phase line, three single-phase current transformers LA1, LA2, LA3 secondary side connect one to one three overcurrent relays respectively DLJ1, DLJ2, DLJ3 coil；

Described determining device, it passes through three groups of in parallel described overcurrent relay DLJ1, DLJ2, DLJ3 normally closed auxiliary The contact the other three normally opened contact and three time-delay relays KT1, KT2, KT3 with distribution box contactor auxiliary contact KM successively Coil correspond series connection, after being then sequentially connected in series between three time-delay relays KT1, KT2, KT3 normally opened contact again with Auxiliary reclay KA1 coil series connection, forms decision circuitry；When the maximum phase current in three-phase is less than overcurrent relay During current value set by DLJ1, DLJ2, DLJ3, time-delay relay KT1, KT2, KT3 coil obtain it is electric, by by delay relay Device KT1, KT2, KT3 setting time delay after, if a phase current maximum in three-phase still less than overcurrent relay DLJ1, Current value set by DLJ2, DLJ3, now time-delay relay KT1, KT2, KT3 normally opened contact be closed again, then make it is middle after Electrical equipment KA1 normally-closed contact disconnects, so as to be disconnected with incoming power loop.

Described distribution box contactor auxiliary contact KM is additionally provided with the 5th normally opened contact and a normally-closed contact, distribution box Contactor auxiliary contact KM the 5th normally opened contact and normally-closed contact is connected a power supply indicator LD respectively.

Compared with prior art, transformation is convenient, be able to can also be led to the power supply of manually operated light distribution box for the utility model The size of current for crossing detection light distribution box cuts off the power supply of light distribution box, both saves electric energy, can extend again and electrically set Standby service life.

Brief description of the drawings

Fig. 1 is the connection figure in the incoming power loop in the utility model.

Fig. 2 is the circuit diagram of monophase current mutual inductance module in the utility model.

Fig. 3 is the connection figure of automatic power-off circuit in the utility model.

Embodiment

The utility model is described further in conjunction with accompanying drawing.

Embodiment 1

Referring to Fig. 1~Fig. 3, the principle of the utility model design includes following two parts：

First, manually operated loop：It is direct can to restart button QA by first closing the circuit breaker Q F in incoming power loop Start, when pressing start button QA, now light distribution box is at channel status.

2nd, automatic power-off circuit：Mainly include current transformer, determining device, it is by judging in incoming power loop The size of electric current controls whether light distribution box needs to power off.

Its specific design is as follows：

A kind of novel energy-conserving light distribution box, including casing, incoming power loop；Described incoming power loop includes three The circuit breaker Q F that L1, L2, L3 phase line of phase electric power incoming line and three phase mains inlet wire are in series, it is characterised in that：

Described manually operated loop is L1, L2, L3 phase between circuit breaker Q F and the output end in incoming power loop Connect distribution box contactor auxiliary contact KM on line；By the start button QA of normally opened contact and distribution box contactor auxiliary contact KM A normally opened contact parallel connection after the stop button TA with a normally-closed contact, auxiliary reclay KA1 normally-closed contact successively again And distribution box contactor auxiliary contact KM coil series connection, formed for manually booting and the loop of manual deenergization； When people gets in, distribution box inner breaker QF can be closed manually, then press start button QA, the conducting of incoming power loop Distribution box is set to be in "on" position；Manually otherwise circuit breaker Q F can be disconnected, incoming power loop is cut off the electricity supply, and makes distribution Case is in off-position.

Described single-phase current transformer module is three single-phase current transformers LA1, LA2, LA3 primary side difference L1, L2, the L3 to connect one to one in incoming power loop between circuit breaker Q F and distribution box contactor auxiliary contact KM Phase line, three single-phase current transformers LA1, LA2, LA3 secondary side connect one to one three overcurrent relays respectively DLJ1, DLJ2, DLJ3 coil；Overcurrent relay DLJ1, DLJ2, DLJ3 over current value can be entered according to actual load situation Row selection, the over current value are used for compared with the maximum phase current in three-phase.

In the utility model, 3 single-phase current transformers are arranged on the point of incoming cables of power supply, install 3 monophase current mutual inductances The reason for device is：Three-phase current in light distribution box is generally not strict equal, to prevent maloperation, therefore need to be gathered respectively 3 single-phase electric currents, 3 single-phase current transformers LA1, LA2, LA3 send the electric current collected by gathering the electric current per phase Enter in determining device, the 3 monophase current signals received are made a decision by determining device, when 3 monophase currents received are low , will be after time-delay relay KT1, KT2, KT3 delay, if a phase current maximum in three-phase is still less than setting when setting value Definite value, now time-delay relay KT1, KT2, KT3 normally opened contact be closed again, then restart auxiliary reclay KA1, make centre Relay KA1 normally-closed contact KA1 disconnects, so as to disconnect incoming power；And work as the normal of make delay relay KT1, KT2, KT3 Contact is opened, when there is a phase current to be higher than setting electric current value during delay suddenly, the line of the corresponding phase delay relay Circle will dead electricity so that electric power incoming line remains turned on.Minimum current value set by this can be adjusted as needed Section, such as：10W the or so during standby power of Office PC, in order to avoid computer is in standby middle power-off, cause important data Lose, minimum current value can be arranged to the current value 0.05A corresponding to 11W, and whether be used as by this current value will close power supply Basis for estimation.

When setting the time-delay relay to allow for personnel and have just enter into interior in the utility model, now electrical appliance is all in pass Closed state, the electric current very little of incoming power, if being not provided with time-delay relay, light distribution box can power off at once, therefore pass through Time-delay relay is set to realize only when the single-phase electricity flow valuve of maximum is less than setting value, just can be with start-up study relay. Time of this delay can set regulation as desired by time-delay relay KT1, KT2, KT3, reach prolonging of setting After the slow time, if maximum single-phase electricity flow valuve now can just send still less than setting electric current value and allow light distribution box to disconnect Order, and then automatically power off light distribution box.Electric energy has so both been saved, the life-span of electrical equipment can be extended again.It is another Aspect, the setting of judgement and the delay of the utility model current value is not all realized additionally using PLC etc., is not only saved Cost-saving, and be also convenient for follow-up maintenance and change related time-delay relay and overcurrent relay.

Claims

1. a kind of novel energy-conserving light distribution box, including casing, incoming power loop；Described incoming power loop includes three-phase The circuit breaker Q F that L1, L2, L3 phase line of electric power incoming line and three phase mains inlet wire are in series, it is characterised in that：

Described manually operated loop is, in L1, L2, L3 phase line between the output end in circuit breaker Q F and incoming power loop Connect distribution box contactor auxiliary contact KM；By the one of the start button QA of normally opened contact and distribution box contactor auxiliary contact KM After individual normally opened contact parallel connection again successively the stop button TA with a normally-closed contact, auxiliary reclay KA1 normally-closed contact and Distribution box contactor auxiliary contact KM coil series connection, is formed for manually booting and the loop of manual deenergization；

Described single-phase current transformer module is that three single-phase current transformers LA1, LA2, LA3 primary side difference are one by one L1, L2, L3 phase line in corresponding connection incoming power loop between circuit breaker Q F and distribution box contactor auxiliary contact KM, Three single-phase current transformers LA1, LA2, LA3 secondary side connect one to one respectively three overcurrent relay DLJ1, DLJ2, DLJ3 coil；

Described determining device, it passes through three groups of in parallel described overcurrent relay DLJ1, DLJ2, DLJ3 normally closed auxiliary contact Successively with distribution box contactor auxiliary contact KM the other three normally opened contact and three time-delay relays KT1, KT2, KT3 line Circle correspond series connection, after being then sequentially connected in series between three time-delay relays KT1, KT2, KT3 normally opened contact again with centre Relay KA1 coil series connection, forms decision circuitry；When the maximum phase current in three-phase is less than overcurrent relay During current value set by DLJ1, DLJ2, DLJ3, time-delay relay KT1, KT2, KT3 coil obtain it is electric, by by delay relay Device KT1, KT2, KT3 setting time delay after, if a phase current maximum in three-phase still less than overcurrent relay DLJ1, Current value set by DLJ2, DLJ3, now time-delay relay KT1, KT2, KT3 normally opened contact be closed again, then make it is middle after Electrical equipment KA1 normally-closed contact disconnects, so as to be disconnected with incoming power loop.

2. a kind of novel energy-conserving light distribution box as claimed in claim 1, it is characterised in that described distribution box contactor is auxiliary Contact KM is helped to be additionally provided with the 5th normally opened contact and a normally-closed contact, the 5th of distribution box contactor auxiliary contact KM is normally opened Contact and normally-closed contact are connected a power supply indicator LD respectively.