CN203250181U - Power supply time-controlled apparatus with multiple independent paths - Google Patents

Abstract

The utility model discloses a power supply time-controlled apparatus with multiple independent paths. The power supply time-controlled apparatus comprises a shell and a circuit board. The circuit board is fixed in the shell through four screws. The left and right ends of the shell are provided with a through hole respectively. The shell is internally provided with terminals. A panel is arranged in front of the shell. A touch screen is arranged at the center of the panel. The circuit board is provided with a main circuit and a control circuit. The main circuit comprises a breaker, fuses, main contactors of various branches, electrothermal relays and a lead. The control circuit comprises a programmable logic controller, output points, normally closed contacts of the electrothermal relays, main contactor coils, the fuses and control lines. The power supply time-controlled apparatus is advantaged by being high in control precision, capable of independently setting multiple power supply lines, convenient to use, few in fault point, is suitable for places such as automated households, offices and high-end guest rooms, and has a wide prospect of popularization and application.

Description

Multichannel independent current source timed unit

Technical field

The utility model relates to the power supply timed unit, especially relates to a kind of place and many power supply timed units that electrical matching uses such as robotization household, office, high-level room of being applicable to.

Background technology

At present, known power supply timed unit is regular socket, and it has two kinds of mechanical type and electronic types.Mechanical type is minimum sets 30 minutes, and maximum can be established 24 hours, and its shortcoming is that time error is large, and precision is low, needs repeatedly setting if continuous several times is used, and uses inconvenient; The electronic type control accuracy is high, can be accurate to a minute level, it can be an independent socket, it also can be multi-joint insert row, its shortcoming is the needs that the single channel socket can not satisfy many electrical equipment, be subject to the restriction of total power supply capacity, and multi-joint insert row can't carry out independent setting to the socket that different time sections requires.More than two kinds of regular sockets all need to be connected on the common socket, so just increased the trouble spot.

Summary of the invention

For overcome the control accuracy that existing regular socket exists low, use inconvenient, can not multichannel independently arrange and trouble spot deficiency how, the purpose of this utility model is to provide a kind of time control accuracy high, can carry out independent setting to the multiple-way supply circuit, multichannel independent current source timed unit easy to use, that the trouble spot is few.

For overcoming the above problems, the technical scheme that the utility model adopts is: this multichannel independent current source timed unit, comprise housing and circuit board, by four screws circuit board is fixed in the housing, establish respectively open-work at two ends, the housing left and right sides, can be installed in the wall this device is embedded by screw, in housing, establish connection terminal, to make things convenient for wiring and inspection, it is characterized in that establishing panel in the front of housing, panel can outwards be opened, and establishes touch-screen at the panel middle part, establish major loop and two groups of circuit of control loop at circuit board, major loop comprises isolating switch, fuse, each branch road main contactor, electrothermal relay and wire form, and power supply is connected to the main breaker end of incoming cables, and its leading-out terminal connects respectively each branch road main contactor, be connected to each branch road electrothermal relay, be connected with consumer finally by independent wire; Wherein, isolating switch can be realized the earth leakage protection to total loop, guarantee personal safety, isolating switch and fuse cooperate the overcurrent protection that can realize total loop, electrothermal relay can be realized the overcurrent protection to each loop, thereby the three-level protective of realization electrothermal relay---fuse---isolating switch, so that major loop provides is controllable, power supply that defencive function is arranged; Control loop comprises programmable logic controller (PLC), output point, thermal relay normally closed contact, main contactor coil, fuse and control line, 220 volts of power supplys of control loop draw from main circuit power C phase and N mutually, live wire C is through overcurrent fuse, 1-10 bar branch road in the parallel connection, series connection main contactor coil was got back to the N phase after every branch road comprised the output point series connection thermal relay normally closed contact of programmable logic controller (PLC), formed the loop; Control respectively connection and the cut-out of each main contactor by control loop, thereby realize connection and the cut-out of each corresponding circuit.The utility model also comprises following measures enforcement: establish connection at touch-screen, the other end of connection is connected with programmable logic controller (PLC) by the communication port of programmable logic controller (PLC), realizes setting operation and the message exchange of time.

The beneficial effects of the utility model are, compare with present regular socket, because the high speed information processing power of programmable logic controller (PLC), so that its time control accuracy is very high; Because each current supply circuit is independent, thus can multichannel be set simultaneously according to actual needs, very easy to use; Because major loop is provided with three-level protective, and has adopted each major loop directly to be connected to consumer, has reduced the trouble spot, has improved electrical safety.Be applicable to the places such as robotization household, office, high-level room, have widely popularizing application prospect.

Description of drawings

Fig. 1 is the utility model structural representation.

Fig. 2 is the utility model circuit and control principle wiring diagram.

Fig. 3 is the utility model touch-screen and programmable logic controller (PLC) wiring schematic diagram.

Among the figure: 1. touch-screen; 2. isolating switch; 3. fuse _1-24. main contactor _1-n5. electrothermal relay _1-n6. wire; 7. programmable logic controller (PLC); 8. control line; 9. panel; 10. screw; 11. housing; 12. circuit board; 13. connection terminal; 7b. communication port; 14. connection; 15. open-work; 16. electrothermal relay is commonly used the contact _1-n17. main contactor coil _1-n7a. output point.

Embodiment

1,2,3 make the utility model with reference to the accompanying drawings.This multichannel independent current source timed unit, comprise housing 11 and circuit board 12, by four screws 10 circuit board 12 is fixed in the housing 11, establish respectively open-work 15 at two ends, housing 11 left and right sides, in housing 11, establish connection terminal 13, it is characterized in that establishing panel 9 in the front of housing 11, establish touch-screen 1 at panel 9 middle parts, establish major loop and two groups of circuit of control loop at circuit board 12, major loop comprises isolating switch 2, fuse 3, each branch road main contactor 4, electrothermal relay 5 and wire 6, power supply is connected to main breaker 2 ends of incoming cables, its leading-out terminal connects respectively each branch road main contactor 4, be connected to each branch road electrothermal relay 5, be connected with consumer finally by independent wire; Control loop comprises programmable logic controller (PLC) 7, output point 7a, thermal relay normally closed contact 16, main contactor coil 17, fuse 3 and control line 8.Establish connection 14 at touch-screen 1, the other end of connection 14 is connected with programmable logic controller (PLC) 7 by the communication port 7b of programmable logic controller (PLC) 7.

Program pre-edit is good by programming software downloads in programmable logic controller (PLC) 7 and the touch-screen 1 by connection 14, touch-screen 1 is used for to the Set arbitrarily of time and date, programmable logic controller (PLC) 7 is used for processing these set informations, and require output logic according to setting, in order to connection and the cut-out that realizes major loop, thereby realization is to the independently timing function in multiple-way supply loop.

Claims (2)

1. multichannel independent current source timed unit, comprise housing (11) and circuit board (12), by four screws (10) circuit board (12) is fixed in the housing (11), establish respectively open-work (15) at housing (11) two ends, the left and right sides, in housing (11), establish connection terminal (13), it is characterized in that establishing panel (9) in the front of housing (11), establish touch-screen (1) at panel (9) middle part, establish major loop and two groups of circuit of control loop at circuit board (12), major loop comprises isolating switch (2), fuse (3), each branch road main contactor (4), electrothermal relay (5) and wire (6); Control loop comprises programmable logic controller (PLC) (7), output point (7a), thermal relay normally closed contact (16), main contactor coil (17), fuse (3) and control line (8).

2. multichannel independent current source timed unit claimed in claim 1, it is characterized in that establishing connection (14) at touch-screen (1), the other end of connection (14) is connected with programmable logic controller (PLC) (7) by the communication port (7b) of programmable logic controller (PLC) (7).

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