CN202651633U - Secondary control device of intelligent ring network cabinet - Google Patents
Secondary control device of intelligent ring network cabinet Download PDFInfo
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- CN202651633U CN202651633U CN 201220345271 CN201220345271U CN202651633U CN 202651633 U CN202651633 U CN 202651633U CN 201220345271 CN201220345271 CN 201220345271 CN 201220345271 U CN201220345271 U CN 201220345271U CN 202651633 U CN202651633 U CN 202651633U
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Abstract
The utility model discloses a secondary control device of an intelligent ring network cabinet. The device comprises: a shell; a PCB circuit board integrated with a secondary control circuit of the intelligent ring network cabinet and sealed and packaged in the shell by a sealant; and a relay, a fuse and a connector respectively welded on the PCB circuit board, wherein a leading-out wire of the secondary control device is led out by the connector. The secondary control circuit of the intelligent ring network cabinet is integrated and packaged in the shell, therefore the switch misoperation of the intelligent ring network cabinet due to dew and mist, is avoided and the action accuracy of the switch of the intelligent ring network cabinet is improved.
Description
Technical field
The utility model relates to power domain, in particular to a kind of linear quadratic control device of intelligent ring main unit.
Background technology
In the society of current advanced IT application, the hurried increase of the demand of electric power, power load be densification increasingly also, and high-tension distributing line directly is deep into the load center in urban district, the concept of intelligent grid also proposes thereupon, discusses topic warmly for one that becomes current national grid.So-called intelligent grid is an electric power system that is made of the transmission and disttrbution system of numerous automations, realizes all electrical network runnings with coordination, effective and reliable mode, has self-healing function; Respond fast electricity market and business event demand; Have intelligentized communication framework, realization is information flow in real time, safely and flexibly, for the user provides reliable, economic electrical power services.
According to the requirement of socio-economic development to following electrical network, Chinese intelligent grid should possess following five basic intension: strong reliable, economical and efficient, clean environment firendly, transparent opening, friendly interactive.For adapting to this demand; national grid is used also more and more high to the requirement of switch cubicle; particularly transformer and distribution station is when progressively realizing comprehensive automation and then unattended operation, and supervision, control, the protection of switch cubicle and switch cubicle running status proposed more requirement.Each Power Equipment Manufacturing Enterprise is also improved at aspects such as intellectuality, miniaturization, high reliability product separately.When 10kV gas-insulated ring network cabinet was promoted, the intelligent ring main unit of motor-operating mechanism is also more and more many to have been obtained using and certainly; Higher power supply reliability, less loss, longer useful life, maintenance work still less etc. have become the core content of research intelligent ring main unit.
At present, the ring main unit of extensive use on the market has the combined and flexible expansion type of fixed cell, both has been fit to the requirement of network node or user terminal, satisfies again the demand that various secondary substations use flexibly to compact switch cabinet.
Intelligent ring main unit mainly is comprised of three parts aspect electric, i.e. a live part (electrification in high voltage parts), permanent magnet motor, linear quadratic control part (to detection, the control of electric current, voltage, signal etc. and protect).Its institute once live part and switch all is enclosed in the stainless housing, and whole device is not subjected to the impact of external environment condition, thereby can guarantee operational reliability and personal safety, and has realized non-maintaining.The permanent-magnet electric machine is at the middle part of whole switch cubicle, and its both positive and negative polarity is serially connected in the linear quadratic control part, in order to realize divide-shut brake control; The linear quadratic control part then is installed in the top of switch cubicle, because its inside only has some relays, terminal and wiring, so only have simple ventilation unit not install any protection and protective device.Simply, the divide-shut brake of ring main unit is to transfer realization by permanent magnet motor positive and negative, and the rotating of motor is then partly determined by linear quadratic control.Therefore, the design of each group parts of linear quadratic control part just seems particularly important, with regard to how improving its promptness, reliability and sensitivity higher requirement has been arranged also.
Electric perfect adaptation with machinery makes ring main unit have widely application market, but is applied to indoor more.Factor affecting will face very severe problem because environment is abominable etc. for the ring main unit of open air operation.Because the linear quadratic control part will welcome huge challenge without any protection and safeguard measure when moving out of doors.
Because northern area day and night temperature and the four seasons temperature difference are larger, condensation seriously reaches weather conditions and badly waits impact, make easily the plug type auxiliary relay oxidation of adopting in the secondary control loop of intelligent ring main unit motor-operating mechanism, add that the moistureproof processing of ring main unit sealed bottom is not thorough, a large amount of moisture in the cable trough rise and enter ring main unit inside, in the low pressure cell, form water smoke, cause the switching contact of plug type auxiliary relay partly to get rusty, rusty part is communicated with the contact, will produce the problems such as short circuit or connection, make the secondary control loop misoperation, thereby cause the misoperation of on-load switch, brought harmful effect to the user.
For fear of the problems referred to above, prior art is anti-condensation by ventilation unit is set, and it is not thorough that still dustproof problem just solves, and the dust of covering can make mechanism's tripping; Perhaps install heater in cabinet additional, generation that also can only the respite condensation can not reach the purpose that prevents condensation fully, and not only DeGrain also wastes energy.
Can't solve the problem that produces the switch misoperation because of condensation, water smoke for intelligent ring main unit in the correlation technique, not yet propose at present effective solution.
The utility model content
Main purpose of the present utility model is to provide a kind of linear quadratic control device of intelligent ring main unit, can't solve the problem that produces the switch misoperation because of condensation, water smoke to solve intelligent ring main unit.
Linear quadratic control device according to intelligent ring main unit of the present utility model comprises: housing; The PCB wiring board is integrated with the linear quadratic control circuit of intelligent ring main unit, by the sealant sealing can in housing; And relay, fuse and plug connector, be welded on respectively on the PCB wiring board, wherein, the lead-out wire of linear quadratic control device is drawn by plug connector.
Further, plug connector is waterproof connector.
Further, plug connector comprises: the first plug connector and the second plug connector, wherein, relay and fuse are connected between the first end of the first end of the first plug connector and the second plug connector, the second end of the first plug connector is used for connecting the first end of power supply and the first end of motor, and the second end of the second plug connector is used for connecting the second end of power supply and the second end of motor.
Further, relay comprises the first relay, the second relay, the 3rd relay and the 4th relay, fuse comprises the first fuse and the second fuse, wherein, the first end of the first terminal of the first plug connector is connected to the first end of the 7th terminal of the first end of the 6th terminal of first end, the second plug connector of the tenth terminal of the first plug connector and the second plug connector via the first fuse, the second end of the first terminal of the first plug connector is used for connecting the positive pole of power supply; The first end of the second terminal of the first plug connector is connected to the first end of the second terminal of the second plug connector via the first contact of the first contact of the 3rd relay and the first relay, and the second end of the second terminal of the first plug connector is used for connecting the positive pole of motor; The first end of the 3rd terminal of the first plug connector is connected to the first end of the 6th terminal of the first plug connector, and the second end of the 3rd terminal of the first plug connector is used for connecting the first end of combined floodgate indicator elment; The first end of the 4th terminal of the first plug connector is connected to the first end of the 7th terminal of the first plug connector, and the second end of the 4th terminal of the first plug connector is used for connecting the first end of separating brake indicator elment; The first end of the Five-terminals of the first plug connector is connected to the first end of the first terminal of the second plug connector via the second fuse, and be connected respectively with the first end of the 9th terminal of the first end of the 8th terminal of the second plug connector and the second plug connector, the second end of the Five-terminals of the first plug connector is used for connecting the second end of combined floodgate indicator elment and the second end of separating brake indicator elment; The second end of the 6th terminal of the first plug connector is used for connecting first and often opens the first end of contact, on-load switch position; The second end of the 7th terminal of the first plug connector is used for connecting the first end of contact, the first normally closed on-load switch position; The first end of the 8th terminal of the first plug connector via the normally-closed contact of the 4th relay, first and joint group and the first diode be connected to the first end of the tenth Five-terminals of the first end of the 4th terminal of the second plug connector and the second plug connector, the second end of the 8th terminal of the first plug connector is used for connecting second and often opens the first end of contact, on-load switch position, wherein, first and joint group formed by the coil of the first relay, coil and second diodes in parallel of the second relay; The first end of the 9th terminal of the first plug connector via the normally-closed contact of the second relay, second and joint group and the 3rd diode be connected to the first end of the 13 terminal of the first end of the 3rd terminal of the second plug connector and the second plug connector, the second end of the 9th terminal of the first plug connector is used for connecting the first end of contact, the second normally closed on-load switch position, wherein, second and joint group formed by the coil of the 3rd relay, coil and the 4th diodes in parallel of the 4th relay; The second end of the tenth terminal of the first plug connector is used for connecting the first end of contact, earthing position; The first end of the 11 terminal of the first plug connector is connected to the first end of the tenth Five-terminals of the first end of the 4th terminal of the second plug connector and the second plug connector via the normally opened contact of the second relay, simultaneously the first end of the 11 terminal of the first plug connector is connected to the first end of the tenth two-terminal of the first end of the 14 terminal of the second plug connector and the second plug connector via the normally opened contact of the 4th relay, the first end of the 11 terminal of the first plug connector is connected with the first end of the 14 terminal of the first plug connector simultaneously, and the second end of the 11 terminal of the first plug connector is used for connecting the first end of BY contact; The first end of the tenth two-terminal of the first plug connector is connected with the first end of the tenth two-terminal of the second plug connector and the first end of the 14 terminal of the second plug connector, and the second end of the tenth two-terminal of the first plug connector is used for connecting the first end of distant place status switch; The first end of the 13 terminal of the first plug connector is connected with the first end of the Five-terminals of the second plug connector, and the second end of the 13 terminal of the first plug connector is used for connecting the on the spot first end of status switch; The second end of the 14 terminal of the first plug connector be used for to connect the second end of distant place status switch and the second end of status switch on the spot; The second end of the first terminal of the second plug connector is used for connecting the negative pole of power supply; The second end of the second terminal of the second plug connector is used for connecting the negative pole of motor; The second end of the 3rd terminal of the second plug connector is used for connecting the first end of the element that closes a floodgate on the spot; The second end of the 4th terminal of the second plug connector is used for connecting the on the spot first end of separating brake element; The second end of the Five-terminals of the second plug connector be used for to connect close a floodgate on the spot the second end of element and the second end of separating brake element on the spot; The second end of the 6th terminal of the second plug connector is used for connecting first and often opens the second end of contact, on-load switch position; The second end of the 7th terminal of the second plug connector is used for connecting the second end of contact, the first normally closed on-load switch position; The second end of the 8th terminal of the second plug connector is used for connecting second and often opens the second end of contact, on-load switch position; The second end of the 9th terminal of the second plug connector is used for connecting the second end of contact, the second normally closed on-load switch position; The first end of the tenth terminal of the second plug connector is connected with the first end of the 11 terminal of the second plug connector, and the second end of the tenth terminal of the second plug connector is used for connecting the second end of contact, earthing position; The second end of the 11 terminal of the second plug connector is used for connecting the second end of BY contact; The second end of the tenth two-terminal of the second plug connector is used for connecting the first end that plays element far away; The second end of the 13 terminal of the second plug connector is used for connecting the second end that plays element far away; The second end of the 14 terminal of the second plug connector is used for connecting the first end that far stops element; And the second end of the tenth Five-terminals of the second plug connector is used for connecting the second end that far stops element.
Further, be respectively arranged with the Access Division on the first plug connector and the second plug connector, be used for cooperating outside plug connector.
Further, the first plug connector is different with the Access Division on the second plug connector.
Further, be respectively arranged with the anti-mis-insertion colour circle on the first plug connector and the second plug connector, be used for cooperating outside plug connector.Further, the switching contact gap of relay is more than or equal to 1.5mm.
Further, relay is made by epoxide resin material.
Further, fluid sealant is addition-type silicon rubber.
Further, housing is made by the ABS material.
By the utility model, adopt the linear quadratic control device of the intelligent ring main unit that comprises following part: housing; The PCB wiring board is integrated with the linear quadratic control circuit of intelligent ring main unit, by the sealant sealing can in housing; And relay, fuse and plug connector, be welded on respectively on the PCB wiring board, wherein, the lead-out wire of linear quadratic control device is drawn by plug connector, integrated and can is in housing with the linear quadratic control circuit of intelligent ring main unit, so that linear quadratic control part can waterproof, solved intelligent ring main unit and produced the problem of switch misoperation because of condensation, water smoke, and then reached the effect that improves intelligent ring main unit switch motion accuracy.
Description of drawings
The accompanying drawing that consists of the application's a part is used to provide further understanding of the present utility model, and illustrative examples of the present utility model and explanation thereof are used for explaining the utility model, do not consist of improper restriction of the present utility model.In the accompanying drawings:
Fig. 1 is the schematic diagram according to the linear quadratic control device of the intelligent ring main unit of the utility model embodiment;
Fig. 2 is the schematic diagram according to the linear quadratic control device of the intelligent ring main unit of the utility model embodiment.
Embodiment
Need to prove that in the situation of not conflicting, embodiment and the feature among the embodiment among the application can make up mutually.Describe below with reference to the accompanying drawings and in conjunction with the embodiments the utility model in detail.
Fig. 1 is the schematic diagram according to the linear quadratic control device of the intelligent ring main unit of the utility model embodiment, as shown in Figure 1, this linear quadratic control device comprises housing A and passes through PCB wiring board (not shown) and the electric components of sealant sealing can in housing.Wherein, the PCB wiring board is integrated with the linear quadratic control circuit of intelligent ring main unit, relay, fuse and plug connector, be welded on respectively on the PCB wiring board, wherein, the lead-out wire of linear quadratic control device is drawn by plug connector, thereby, outside waterproof connector TI and the T2 that only leaves wiring of device, and fuse FU1 and FU2.Preferably, the overall dimension of control device is decided to be 78*62*37, can be adapted to any ring main unit, mounting means adopts GB 35mm card rail to install, draw-in groove adopts identical material with shell, at color and luster and all consistent in appearance, and have very high mechanical strength, guarantee the installation safety of whole device.
In this embodiment, the linear quadratic control device is comprised of PCB surface-mounted integrated circuit, relay, waterproof connector, fuse and electric components, and major function is on/off switch on the spot, distant place on/off switch, ground connection interlocking etc.With the linear quadratic control of ring main unit motor-operating mechanism partly integrated be a PCB wiring board, then with auxiliary relay, waterproof connector, some miniature electronic components and parts such as fuse are welded on the PCB wiring board after integrated, use the sealant sealing can in housing integrated good PCB wiring board and the various components and parts of selecting at last, outside waterproof connector and the protective tube that only leaves wiring, lead-out wire is by using waterproof connector that the mode of inserting is drawn wiring, the linear quadratic control of motor-operating mechanism partly looks to be exactly the original paper of a sealing, so that linear quadratic control part can waterproof, avoid intelligent ring main unit because of condensation, water smoke and produce the switch misoperation, can under abominable humiture environment, normally use, improve the accuracy of intelligent ring main unit switch motion.
Fig. 2 is the schematic diagram according to the linear quadratic control device of the intelligent ring main unit of the utility model embodiment, as shown in Figure 2, this linear quadratic control device comprises the first plug connector T1 and the second plug connector T2, circuit between the first end of the first end of the first plug connector T1 and the second plug connector T2 is integrated on the PCB wiring board, the second end of the first plug connector T1 be connected the second end of plug connector T2 and connect respectively the two ends of outside line, concrete circuit is composed as follows:
The first end of the first terminal of the first plug connector T1 is connected to the first end of the 7th terminal of the first end of the 6th terminal of first end, the second plug connector T2 of the tenth terminal of the first plug connector T1 and the second plug connector T2 via the first fuse FU1, the second end of the first terminal of the first plug connector T1 is used for connecting the positive pole of power supply;
The first end of the second terminal of the first plug connector T1 is connected to the first end of the second terminal of the second plug connector T2 via the first contact of the first contact of the 3rd relay K 3 and the first relay K 1, and the second end of the second terminal of the first plug connector T1 is used for connecting the positive pole of motor;
The first end of the 3rd terminal of the first plug connector T1 is connected to the first end of the 6th terminal of the first plug connector T1, and the second end of the 3rd terminal of the first plug connector T1 is used for connecting the first end of combined floodgate indicator elment;
The first end of the 4th terminal of the first plug connector T1 is connected to the first end of the 7th terminal of the first plug connector T1, and the second end of the 4th terminal of the first plug connector T1 is used for connecting the first end of separating brake indicator elment;
The first end of the Five-terminals of the first plug connector T1 is connected to the first end of the first terminal of the second plug connector T2 via the second fuse FU2, and be connected respectively with the first end of the 8th terminal of the second plug connector T2 and the first end of the 9th terminal of the second plug connector T2, the second end of the Five-terminals of the first plug connector T1 is used for connecting the second end of combined floodgate indicator elment and the second end of separating brake indicator elment;
The second end of the 6th terminal of the first plug connector T1 is used for connecting first and often opens the first end of contact, on-load switch position;
The second end of the 7th terminal of the first plug connector T1 is used for connecting the first end of contact, the first normally closed on-load switch position;
The first end of the 8th terminal of the first plug connector T1 via the normally-closed contact of the 4th relay K 4, first and joint group and the first diode be connected to the first end of the tenth Five-terminals of the first end of the 4th terminal of the second plug connector T2 and the second plug connector T2, the second end of the 8th terminal of the first plug connector T1 is used for connecting second and often opens the first end of contact, on-load switch position, wherein, first and joint group formed by the coil of the first relay K 1, coil and second diodes in parallel of the second relay K 2;
The first end of the 9th terminal of the first plug connector T1 via the normally-closed contact of the second relay K 2, second and joint group and the 3rd diode be connected to the first end of the 13 terminal of the first end of the 3rd terminal of the second plug connector T2 and the second plug connector T2, the second end of the 9th terminal of the first plug connector T1 is used for connecting the first end of contact, the second normally closed on-load switch position, wherein, second and joint group formed by the coil of the 3rd relay K 3, coil and the 4th diodes in parallel of the 4th relay K 4;
The second end of the tenth terminal of the first plug connector T1 is used for connecting the first end of contact, earthing position;
The first end of the 11 terminal of the first plug connector T1 is connected to the first end of the tenth Five-terminals of the first end of the 4th terminal of the second plug connector T2 and the second plug connector T2 via the normally opened contact of the second relay K 2, simultaneously the first end of the 11 terminal of the first plug connector T1 is connected to the first end of the tenth two-terminal of the first end of the 14 terminal of the second plug connector T2 and the second plug connector T2 via the normally opened contact of the 4th relay K 4, the first end of the 11 terminal of the first plug connector T1 is connected with the first end of the 14 terminal of the first plug connector T1 simultaneously, and the second end of the 11 terminal of the first plug connector T1 is used for connecting the first end of BY contact;
The first end of the tenth two-terminal of the first plug connector T1 is connected with the first end of the tenth two-terminal of the second plug connector T2 and the first end of the 14 terminal of the second plug connector T2, and the second end of the tenth two-terminal of the first plug connector T1 is used for connecting the first end of distant place status switch;
The first end of the 13 terminal of the first plug connector T1 is connected with the first end of the Five-terminals of the second plug connector T2, and the second end of the 13 terminal of the first plug connector T1 is used for connecting the on the spot first end of status switch;
The second end of the 14 terminal of the first plug connector T1 be used for to connect the second end of distant place status switch and the second end of status switch on the spot;
The second end of the first terminal of the second plug connector T2 is used for connecting the negative pole of power supply;
The second end of the second terminal of the second plug connector T2 is used for connecting the negative pole of motor;
The second end of the 3rd terminal of the second plug connector T2 is used for connecting the first end of element (also being the QA start button) of closing a floodgate on the spot;
The second end of the 4th terminal of the second plug connector T2 is used for connecting the on the spot first end of separating brake unit (also being the TA stop button) part;
The second end of the Five-terminals of the second plug connector T2 be used for to connect close a floodgate on the spot the second end of element and the second end of separating brake element on the spot;
The second end of the 6th terminal of the second plug connector T2 is used for connecting first and often opens the second end of contact, on-load switch position;
The second end of the 7th terminal of the second plug connector T2 is used for connecting the second end of contact, the first normally closed on-load switch position;
The second end of the 8th terminal of the second plug connector T2 is used for connecting second and often opens the second end of contact, on-load switch position;
The second end of the 9th terminal of the second plug connector T2 is used for connecting the second end of contact, the second normally closed on-load switch position;
The first end of the tenth terminal of the second plug connector T2 is connected with the first end of the 11 terminal of the second plug connector T2, and the second end of the tenth terminal of the second plug connector T2 is used for connecting the second end of contact, earthing position;
The second end of the 11 terminal of the second plug connector T2 is used for connecting the second end of BY contact;
The second end of the tenth two-terminal of the second plug connector T2 is used for connecting the first end that plays element far away;
The second end of the 13 terminal of the second plug connector T2 is used for connecting the second end that plays element far away;
The second end of the 14 terminal of the second plug connector T2 is used for connecting the first end that far stops element;
The second end of the tenth Five-terminals of the second plug connector T2 is used for connecting the second end that far stops element.
The linear quadratic control device that adopts this embodiment to provide, so that the linear quadratic control circuit of intelligent ring main unit is compact, simple in structure, changed the complexity of conventional electric operating mechanism linear quadratic control, reduced the mistake of secondary connection, realized protecting fully purpose, both prevent the misoperation phenomenon, also reduced dispatcher's personal safety risk, guaranteed power supply reliability, simultaneously, so that the control device volume is little, reach the purpose of intensive miniaturization by rational assembling design, saved installing space, by realizing the installation of motor-operating mechanism with plug connector to the mode of inserting, saved the time that motor-operating mechanism is installed.
Preferably, when realizing PCB wiring board integrated, the linear quadratic control of ring main unit motor-operating mechanism is partly carried out logic analysis, in line with the function and the logic that keep former motor-operating mechanism, principle internally, the trend of implementation and external electric components is all made analysis, mounting means and position from the fuse sleeve pipe, the mounting means of relay and position, the mounting means of waterproof connector and position, the metal line of wiring board, move towards all to have made tight design on the manufacture craft of mode and the intensive miniaturization of wiring board, thereby with the most reasonable, the most brief mode is integrated into the PCB wiring board with its logic function.
When the definition of design terminal, the haptic element of power positive cathode, motor both positive and negative polarity, relay, the haptic element of auxiliary contact are designed respectively on two plug connectors, its position is corresponding, electric components is drawn in the centre, allow a docking point two haptic elements externally in the wiring as far as possible away from, the phenomenon that can avoid the contact externally to be communicated with fully like this guarantees the safe and reliable work of relay.
When realizing the welding of PCB wiring board, should satisfy simultaneously following the requirement: during the SMT paster, produce in strict accordance with " SMT standard operation administrative provisions ", and test; During plug-in unit, carry out plug-in unit in strict accordance with " plug-in unit technique ", excessively behind the wave-soldering, test; During maintenance, the poor welding spots of crest Produced after Welding is keeped in repair, and check; When spray three is anti-, the PCB wiring board plate that properly protects is carried out the even sprinklings of three anti-lacquers after, test.
For fear of relay oxidation under than the harsh climate environment, corrosion, relay in the utility model is made by epoxide resin material, has very high dielectric strength, and it is larger to open and close the contact gap, be preferably more than or equal 1.5mm, and volume is enough little, to satisfy the concept of intensive miniaturization.When adopting coil rating voltage to be 48V, the power consumption under the normal temperature is the relay of 0.53W, reaches low in energy consumption, and it is little to generate heat, the purpose that temperature rise is low, and good heat dissipation and contact are easy to use with PCB wiring board reliable fit.Operate time is short, and the life-span was 3,000,000 time when moved with the frequency of 18,000 times/h mechanical endurance, and action frequency was as 30,000 times when electrical endurance moved take the frequency of 360 times/h, and operating temperature range is large, can normally use in the time of-40 ℃～70 ℃.
For waterproof connector, because the electric components of whole module all seals can in housing, outside waterproof connector and the protective tube that only leaves wiring, lead-out wire is by using waterproof connector that the mode of inserting is drawn wiring, whole module looks it is the original paper of a sealing, therefore the design of waterproof connector is seemed particularly crucial.Preferably, waterproof connector has following characteristic: good chemical resistance, weatherability, oil resistance and high fire resistance characteristic; Whole two-way, pad and interfacial seal design; Extensive compatible UL (22 to 14AWG) and SAE be (22 to 14) various line styles automatically; The design of socket and plug meets ergonomics, and plug and wiring are not subjected to stress, does not need independent sealed line, and handled easily drops to maintenance cost minimum; The Access Division is set, it also is safe locking device, guarantee that connector closely links to each other, avoid dither and acutely rock lower unexpected the disconnection, further preferably, the first plug connector is different with the Access Division on the second plug connector, avoid connection error, perhaps, in plug portion design anti-mis-insertion colour circle, grafting mistake when avoiding execute-in-place; Support multiple power and signal application; Volume is little, and pin number and capacity satisfy electrical demands; Flame retardant rating can reach the UL94V-0 level.
The waterproof gasket cement that adopts in this embodiment is preferably addition-type silicon rubber.Have the following functions characteristic: room temperature or the sulfuration of heating, good fluidity, good heat conductivity can be made deep layer and solidify, and solidification process shrinks minimum; Good anti-ozone and UV resistant performance can be used as outdoor use material; Good weatherability and ageing-resistant performance can be used for humidity, many dirt is rocky, salt is dirty, mine and any air-polluting occasion; Fire resistance reaches the UL94V-0 level; Can keep caoutchouc elasticity and excellent electrical properties in the wide temperature range (60～250 ℃) very much.
The housing that adopts in this embodiment preferably adopts the ABS material to make.ABS has good chemical property, physical property and mechanical performance: nontoxic, tasteless, be yellow, and the plastics of moulding have preferably gloss; Can not degrade rapidly at low temperatures yet, have good processability and colouring power; ABS has good chemical resistance and chemical stability, water, inorganic salts, acid, alkali on ABS almost without impact; ABS is tough and tensile, has good resistance to wear, cold resistance, oil resistance and resistance to water; The environment for use temperature is wide in range: but about 70 ℃ continuous operations of high temperature, and heat distortion temperature is about 93 ℃; Have good comprehensive mechanical property and case hardness; Have good mechanical strength and fabulous impact strength.
From above description, can find out, the utility model has been realized following technique effect: integrated and can is in housing with the linear quadratic control circuit of intelligent ring main unit, the linear quadratic control circuit is drawn lead-in wire with the outside part that is connected by plug connector, so that linear quadratic control part can waterproof, avoid intelligent ring main unit because condensation, water smoke produce the switch misoperation, improved the accuracy of intelligent ring main unit switch motion.
The above is preferred embodiment of the present utility model only, is not limited to the utility model, and for a person skilled in the art, the utility model can have various modifications and variations.All within spirit of the present utility model and principle, any modification of doing, be equal to replacement, improvement etc., all should be included within the protection range of the present utility model.
Claims (11)
1. the linear quadratic control device of an intelligent ring main unit is characterized in that, comprising:
Housing;
The PCB wiring board is integrated with the linear quadratic control circuit of intelligent ring main unit, by the sealant sealing can in described housing; And
Relay, fuse and plug connector are welded on respectively on the described PCB wiring board, and wherein, the lead-out wire of described linear quadratic control device is drawn by described plug connector.
2. the linear quadratic control device of intelligent ring main unit according to claim 1 is characterized in that, described plug connector is waterproof connector.
3. the linear quadratic control device of intelligent ring main unit according to claim 1, it is characterized in that, described plug connector comprises: the first plug connector (T1) and the second plug connector (T2), wherein, described relay and described fuse are connected between the first end of the first end of described the first plug connector (T1) and described the second plug connector (T2), the second end of described the first plug connector (T1) is used for connecting the first end of power supply and the first end of motor, and the second end of described the second plug connector (T2) is used for connecting the second end of described power supply and the second end of described motor.
4. the linear quadratic control device of intelligent ring main unit according to claim 3, it is characterized in that, described relay comprises the first relay (K1), the second relay (K2), the 3rd relay (K3) and the 4th relay (K4), described fuse comprises the first fuse (FU1) and the second fuse (FU2), wherein
The first end of the first terminal of described the first plug connector (T1) is connected to the first end of the 7th terminal of the first end of the 6th terminal of first end, described the second plug connector (T2) of the tenth terminal of described the first plug connector (T1) and described the second plug connector (T2) via described the first fuse (FU1), the second end of the first terminal of described the first plug connector (T1) is used for connecting the positive pole of described power supply;
The first end of the second terminal of described the first plug connector (T1) is connected to the first end of the second terminal of described the second plug connector (T2) via the first contact of the first contact of described the 3rd relay (K3) and described the first relay (K1), and the second end of the second terminal of described the first plug connector (T1) is used for connecting the positive pole of described motor;
The first end of the 3rd terminal of described the first plug connector (T1) is connected to the first end of the 6th terminal of described the first plug connector (T1), and the second end of the 3rd terminal of described the first plug connector (T1) is used for connecting the first end of combined floodgate indicator elment;
The first end of the 4th terminal of described the first plug connector (T1) is connected to the first end of the 7th terminal of described the first plug connector (T1), and the second end of the 4th terminal of described the first plug connector (T1) is used for connecting the first end of separating brake indicator elment;
The first end of the Five-terminals of described the first plug connector (T1) is connected to the first end of the first terminal of described the second plug connector (T2) via described the second fuse (FU2), and be connected respectively with the first end of the 8th terminal of described the second plug connector (T2) and the first end of the 9th terminal of described the second plug connector (T2), the second end of the Five-terminals of described the first plug connector (T1) is used for connecting the second end of described combined floodgate indicator elment and the second end of described separating brake indicator elment;
The second end of the 6th terminal of described the first plug connector (T1) is used for connecting first and often opens the first end of contact, on-load switch position;
The second end of the 7th terminal of described the first plug connector (T1) is used for connecting the first end of contact, the first normally closed on-load switch position;
The first end of the 8th terminal of described the first plug connector (T1) is via the normally-closed contact of described the 4th relay (K4), first and joint group and the first diode be connected to the first end of the tenth Five-terminals of the first end of the 4th terminal of described the second plug connector (T2) and described the second plug connector (T2), the second end of the 8th terminal of described the first plug connector (T1) is used for connecting second and often opens the first end of contact, on-load switch position, wherein, described first and joint group by the coil of described the first relay (K1), the coil of described the second relay (K2) and the second diodes in parallel form;
The first end of the 9th terminal of described the first plug connector (T1) is via the normally-closed contact of described the second relay (K2), second and joint group and the 3rd diode be connected to the first end of the 13 terminal of the first end of the 3rd terminal of described the second plug connector (T2) and described the second plug connector (T2), the second end of the 9th terminal of described the first plug connector (T1) is used for connecting the first end of contact, the second normally closed on-load switch position, wherein, described second and joint group by the coil of described the 3rd relay (K3), the coil of described the 4th relay (K4) and the 4th diodes in parallel form;
The second end of the tenth terminal of described the first plug connector (T1) is used for connecting the first end of contact, earthing position;
The first end of the 11 terminal of described the first plug connector (T1) is connected to the first end of the tenth Five-terminals of the first end of the 4th terminal of described the second plug connector (T2) and described the second plug connector (T2) via the normally opened contact of described the second relay (K2), simultaneously the first end of the 11 terminal of described the first plug connector (T1) is connected to the first end of the tenth two-terminal of the first end of the 14 terminal of described the second plug connector (T2) and described the second plug connector (T2) via the normally opened contact of described the 4th relay (K4), the first end of the 11 terminal of described the first plug connector (T1) is connected with the first end of the 14 terminal of described the first plug connector (T1) simultaneously, and the second end of the 11 terminal of described the first plug connector (T1) is used for connecting the first end of BY contact;
The first end of the tenth two-terminal of described the first plug connector (T1) is connected with the first end of the tenth two-terminal of described the second plug connector (T2) and the first end of the 14 terminal of described the second plug connector (T2), and the second end of the tenth two-terminal of described the first plug connector (T1) is used for connecting the first end of distant place status switch;
The first end of the 13 terminal of described the first plug connector (T1) is connected with the first end of the Five-terminals of described the second plug connector (T2), and the second end of the 13 terminal of described the first plug connector (T1) is used for connecting the on the spot first end of status switch;
The second end of the 14 terminal of described the first plug connector (T1) is used for connecting the second end of described distant place status switch and the second end of described on the spot status switch;
The second end of the first terminal of described the second plug connector (T2) is used for connecting the negative pole of described power supply;
The second end of the second terminal of described the second plug connector (T2) is used for connecting the negative pole of described motor;
The second end of the 3rd terminal of described the second plug connector (T2) is used for connecting the first end of the element that closes a floodgate on the spot;
The second end of the 4th terminal of described the second plug connector (T2) is used for connecting the on the spot first end of separating brake element;
The second end of the Five-terminals of described the second plug connector (T2) is used for connecting the second end of the described element that closes a floodgate on the spot and the second end of described on the spot separating brake element;
The second end of the 6th terminal of described the second plug connector (T2) is used for connecting described first and often opens the second end of contact, on-load switch position;
The second end of the 7th terminal of described the second plug connector (T2) is used for connecting the second end of contact, the described first normally closed on-load switch position;
The second end of the 8th terminal of described the second plug connector (T2) is used for connecting described second and often opens the second end of contact, on-load switch position;
The second end of the 9th terminal of described the second plug connector (T2) is used for connecting the second end of contact, the described second normally closed on-load switch position;
The first end of the tenth terminal of described the second plug connector (T2) is connected with the first end of the 11 terminal of described the second plug connector (T2), and the second end of the tenth terminal of described the second plug connector (T2) is used for connecting the second end of contact, described earthing position;
The second end of the 11 terminal of described the second plug connector (T2) is used for connecting the second end of described BY contact;
The second end of the tenth two-terminal of described the second plug connector (T2) is used for connecting the first end that plays element far away;
The second end of the 13 terminal of described the second plug connector (T2) is used for connecting the second end of described far away element;
The second end of the 14 terminal of described the second plug connector (T2) is used for connecting the first end that far stops element; And
The second end of the tenth Five-terminals of described the second plug connector (T2) is used for connecting described the second end that far stops element.
5. the linear quadratic control device of each described intelligent ring main unit in 4 according to claim 1 is characterized in that, is respectively arranged with the Access Division on described the first plug connector (T1) and described the second plug connector (T2), is used for cooperating outside plug connector.
6. the linear quadratic control device of the intelligent ring main unit described in according to claim 5 is characterized in that described the first plug connector (T1) is different with the Access Division on described the second plug connector (T2).
7. the linear quadratic control device of each described intelligent ring main unit in 4 according to claim 1 is characterized in that, is respectively arranged with the anti-mis-insertion colour circle on described the first plug connector (T1) and described the second plug connector (T2), is used for cooperating outside plug connector.
8. the linear quadratic control device of each described intelligent ring main unit in 4 according to claim 1 is characterized in that the switching contact gap of described relay is more than or equal to 1.5mm.
9. the linear quadratic control device of each described intelligent ring main unit in 4 according to claim 1 is characterized in that described relay is made by epoxide resin material.
10. the linear quadratic control device of each described intelligent ring main unit in 4 according to claim 1 is characterized in that described fluid sealant is addition-type silicon rubber.
11. the linear quadratic control device of each described intelligent ring main unit in 4 is characterized in that described housing is made by the ABS material according to claim 1.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220345271 CN202651633U (en) | 2012-07-16 | 2012-07-16 | Secondary control device of intelligent ring network cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201220345271 CN202651633U (en) | 2012-07-16 | 2012-07-16 | Secondary control device of intelligent ring network cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202651633U true CN202651633U (en) | 2013-01-02 |
Family
ID=47420680
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201220345271 Expired - Lifetime CN202651633U (en) | 2012-07-16 | 2012-07-16 | Secondary control device of intelligent ring network cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202651633U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103545722A (en) * | 2012-07-16 | 2014-01-29 | 国家电网公司 | Secondary control device of intelligent ring main unit |
-
2012
- 2012-07-16 CN CN 201220345271 patent/CN202651633U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103545722A (en) * | 2012-07-16 | 2014-01-29 | 国家电网公司 | Secondary control device of intelligent ring main unit |
| CN103545722B (en) * | 2012-07-16 | 2016-10-05 | 国家电网公司 | The secondary control device of intelligent ring main unit |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CX01 | Expiry of patent term |
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