CN211151503U - Multi-path intelligent distribution box - Google Patents
Multi-path intelligent distribution box Download PDFInfo
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- CN211151503U CN211151503U CN201920894006.6U CN201920894006U CN211151503U CN 211151503 U CN211151503 U CN 211151503U CN 201920894006 U CN201920894006 U CN 201920894006U CN 211151503 U CN211151503 U CN 211151503U
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- current transformer
- residual current
- distribution box
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- controller
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Abstract
The utility model discloses a multichannel intelligent power distribution box belongs to block terminal technical field. The device includes the isolator who connects gradually series connection with block terminal three-phase input, cross undervoltage protection ware, ac contactor's output is connected with three-phase separated time circuit and single-phase separated time circuit respectively, be connected with residual current transformer on total circuit, three-phase separated time circuit and the single-phase separated time circuit respectively, still be equipped with temperature sensor on the total circuit, be equipped with smoke detector in the block terminal, the switch-on and the disconnection of relay on the different circuits are controlled respectively to the controller according to gathering acquisition current, temperature and smoke signal. The utility model discloses can be to the trouble of different circuits, cut off the circuit power supply that corresponds, realize early warning, protect function to with the electric wire way.
Description
Technical Field
The utility model relates to a block terminal technical field specifically is a multichannel intelligent power distribution box.
Background
The existing building distribution box generally comprises a main switch and branch switches, generally has the functions of leakage tripping and overvoltage protection tripping, and the main switch and the branch switches of the distribution box can automatically trip when a circuit is seriously undervoltage, overcurrent, short circuit and overheat. However, when the current of the power distribution box is overloaded but the time limit for jumping the gate is not reached, the power distribution box generally has no functions of early warning and power-off protection, and cannot perform early detection and early warning on leakage, undervoltage, overvoltage, overcurrent, overheating and the like, so that the traditional power distribution box still has great potential safety hazards.
SUMMERY OF THE UTILITY MODEL
In order to overcome the defects of the prior art, the utility model aims to provide a multichannel intelligent distribution box can realize early warning and power-off protection functions to current and voltage monitoring of an electric circuit.
The utility model provides a multichannel intelligent power distribution box, is including the block terminal that has the chamber door, the inside of block terminal be equipped with block terminal three-phase input and with block terminal three-phase input is series connection's isolator in proper order, crosses undervoltage protection ware, ac contactor, cross and still be connected with total residual current transformer between undervoltage protection ware and the ac contactor.
And the output end of the alternating current contactor is connected with a three-phase branching line and a single-phase branching line. The three-phase branch circuit comprises a fuse, an electric leakage protection switch and a relay which are sequentially connected in series after three-phase electricity is taken from the output end of the alternating current contactor, and a three-phase branch circuit residual current transformer is further connected between the electric leakage protection switch and the relay. The single-phase branch circuit comprises an air switch and a relay which are sequentially connected in series after any one of three-phase power output by the alternating current contactor is taken, and a single-phase branch circuit residual current transformer is further connected between the air switch and the relay.
The total residual current transformer, the three-phase branch circuit residual current transformer and the single-phase branch circuit residual current transformer are wound on corresponding circuits on the primary side, and the secondary side is used as an output end and is connected to the controller through the current acquisition module.
The multi-path intelligent distribution box further comprises a zero line row, and a zero line in the three-phase input end of the electric box sequentially penetrates through the isolating switch and the zero line row after passing the under-voltage protector.
Furthermore, temperature sensors are respectively arranged on each line between the isolating switch and the total residual current transformer, and the output end of each temperature sensor is connected to the controller.
Further, the coils of the ac contactor, the relay K1 and the relay K2 are connected to the controller, respectively.
Further, a smoke detector is further mounted inside the distribution box, and the output end of the smoke detector is connected to the controller.
Further, when the controller detects that any one or more of the total residual current transformer, the temperature sensor and the smoke detector exceeds a corresponding threshold value, the controller controls a coil of the alternating current contactor to be powered off, and a contact connected to a line of the alternating current contactor is disconnected; when the controller detects that the residual current transformer of the three-phase branch line exceeds a corresponding threshold value, the controller controls a coil of a relay K1 to lose power, and a contact connected to the line of the relay K1 is disconnected; when the controller detects that the residual current transformer of the single-phase branch line exceeds the corresponding threshold value, the controller controls the coil of the relay K2 to lose power, and the contact point of the relay K2 connected to the line is disconnected.
Furthermore, the controller is also connected with a status indicator light and a sound alarm device, and the status indicator light and the sound alarm device are arranged on the box door; when the multi-path intelligent distribution box works normally, the status indicator lamp displays green; when the controller detects that any one or more of the total residual current transformer, the three-phase branch line residual current transformer, the single-phase branch line residual current transformer, the temperature sensor and the smoke detector exceeds a corresponding threshold value, the state indicator lamp displays red, and meanwhile, the sound alarm device gives out alarm sound.
Due to the adoption of the technical scheme, the utility model discloses reach following technological effect:
the utility model discloses can go on, the smog state in the block terminal detects with electric circuit's electric current, temperature, smog value when data such as monitoring appear unusually, can be respectively to corresponding circuit ac contactor, relay K1, relay K2's coil carries out power-off control, and then protects a certain branch circuit or total line, and can pass through status indicator lamp and sound alarm device send alarm information, realize early warning, protect function to with electric circuit.
Drawings
Fig. 1 is a schematic structural view of a distribution box.
Fig. 2 is a circuit schematic diagram of a multi-path intelligent distribution box.
In the drawings: 10-a three-phase input end of a distribution box, 11-an over-voltage and under-voltage protector, 12-a current acquisition module, 13-a controller, 14-a zero line row, 15-a temperature sensor, 16-a smoke detector, 17-a status indicator lamp, 18-an audio alarm device, 19-a three-phase line load output terminal, 20-a single-phase line load output terminal, 30-a distribution box, 31-a box door, 32-a box door locking device, 33-a wire inlet hole, 34-a wire outlet hole, QS-an isolating switch, KM-an alternating current contactor, QF-a leakage protection switch, QA-an air switch, K1-a relay, K2-a TA 0-a total residual current transformer, TA 1-a three-phase branch line residual current transformer and TA 2-a single-phase branch line residual current transformer.
Detailed Description
Embodiments of the present invention are further described below with reference to the accompanying drawings.
Referring to fig. 1-2, the multi-channel intelligent distribution box includes a distribution box 30 having a box door 31, a box door locking device 32 is mounted on the box door 31, and a wire inlet 33 and a wire outlet 34 are formed in a side surface of the distribution box 30. The distribution box 30 is internally provided with a three-phase input end 10 of the distribution box, and an isolating switch QS, an overvoltage and undervoltage protector 11 and an alternating current contactor KM which are sequentially connected with the three-phase input end 10 of the distribution box in series. A total residual current transformer TA0 is connected between the over-voltage and under-voltage protector 11 and the AC contactor KM and used for detecting the residual current of the bus circuit. The multi-path intelligent distribution box further comprises a zero line bar 14, and a zero line in a three-phase input end 10 of the distribution box sequentially penetrates through an isolating switch QS and a overvoltage and undervoltage protector 11 and then is connected with the zero line bar 14.
In this embodiment, the overvoltage and undervoltage protector 11 is a three-phase four-wire self-recovery type overvoltage and undervoltage protector, and has a model of sgsgsgq-2 BX63, and when the voltage of any one of the phases a, B and C in the circuit relative to the zero line is higher than 270V ± 5V or lower than 170V ± 5V, the overvoltage and undervoltage protector can be turned off within 0.1 second to protect the circuit; when the voltage of any phase circuit of A phase, B phase and C phase in the circuit relative to the zero line is reduced to 240V +/-5V from an overvoltage state or is increased to 185V +/-5V from an undervoltage state, the overvoltage and undervoltage protector is automatically closed after delaying for 40 seconds, and power supply is recovered.
The output end of the alternating current contactor KM is connected with a three-phase branching line and a single-phase branching line. The three-phase branch circuit comprises a fuse FU, a leakage protection switch QF and a relay K1 which are connected in series in sequence after three-phase power is taken from the output end of the alternating current contactor KM. And a three-phase branch circuit residual current transformer TA1 is connected between the leakage protection switch QF and the relay K1 and is used for detecting the residual current of the three-phase branch circuit.
The single-phase branch line comprises an air switch QA and a relay K2 which are sequentially connected in series after any one phase of three-phase power output by the alternating current contactor KM is taken. And a single-phase branch circuit residual current transformer TA2 is connected between the air switch QA and the relay K2 and is used for detecting the residual current of the three-phase branch circuit.
The primary sides of the total residual current transformer TA0, the three-phase branch line residual current transformer TA1 and the single-phase branch line residual current transformer TA2 are surrounded on the corresponding lines, the secondary sides are used as output ends and are respectively connected to the input end of the controller 13 through the current collection module 12, and the current collection module 12 is a current conditioning circuit and comprises an amplifying circuit, a filter circuit, a following circuit and the like and can be integrated in the controller 13.
The power supply input end of the controller 13 obtains power from any phase of the output end of the alternating current contactor KM, and the zero line end of the controller 13 is connected to the zero line bank 14.
The contacts of the alternating current contactor KM, the relay K1 and the relay K2 connected to the corresponding lines are all normally open contacts. The contact output of relay K1 is connected to the three-phase line load output terminal 19 for supplying power to the load, and the contact output of relay K2 is connected to the single-phase line load output terminal 20 for supplying power to the load. The coils of the ac contactor KM, the relay K1, and the relay K2 are connected to the controller 13, respectively.
The working principle is as follows: after an isolating switch QS is closed, the under-voltage protector 11 detects that the power supply voltage is closed normally, after the controller is powered on, the coils of the alternating current contactor KM, the relay K1 and the relay K2 are controlled to be powered on, the normally open contacts of the alternating current contactor KM, the relay K1 and the relay K2 connected to the circuit are closed, and the multi-path intelligent distribution box normally supplies power for loads. When the controller 13 detects that any one or more of the total residual current transformer TA0, the temperature sensor 15 and the smoke detector 16 exceeds a corresponding threshold value, the controller 13 controls the coil of the alternating current contactor KM to lose power, and the normally open contact of the alternating current contactor KM connected to the line is disconnected; when the controller 13 detects that the residual current transformer TA1 of the three-phase branch line exceeds the corresponding threshold value, the controller 13 controls the coil of the relay K1 to lose power, and the normally open contact of the relay K1 connected to the line is disconnected; when the controller 13 detects that the residual current transformer TA2 of the single-phase branch line exceeds the corresponding threshold value, the controller controls the coil of the relay K2 to lose power, and the contact point of the relay K2 connected to the line is disconnected. Therefore, the corresponding line power supply can be cut off aiming at the faults of different lines, and the condition that the power supply of the whole line is disconnected due to the faults of branch lines at one part is avoided.
The controller 13 is also connected with a status indicator lamp 17 and an audible alarm device 18, and the status indicator lamp 17 and the audible alarm device 18 are mounted on the door 31. When the multi-path intelligent distribution box works normally, the state indicator lamp 17 displays green; when the controller 13 detects that any one or more of the total residual current transformer TA0, the three-phase branch line residual current transformer TA1, the single-phase branch line residual current transformer TA2, the temperature sensor 15 and the smoke detector 16 exceeds the corresponding threshold value, the status indicator lamp 17 displays red, and the audible alarm device 18 gives an alarm sound.
Although the present invention has been described in detail with reference to the foregoing embodiments, it will be apparent to those skilled in the art that modifications may be made to the embodiments or portions thereof without departing from the spirit and scope of the invention.
Claims (6)
1. A multi-path intelligent distribution box comprises a distribution box (30) with a box door (31), and is characterized in that a three-phase input end (10) of the distribution box, an isolating switch (QS), an overvoltage and undervoltage protector (11) and an alternating current contactor (KM) are arranged in the distribution box (30), wherein the QS, the overvoltage and undervoltage protector and the alternating current contactor (KM) are sequentially connected in series, and a total residual current transformer (TA0) is connected between the overvoltage and undervoltage protector and the alternating current contactor (KM);
the output end of the alternating current contactor (KM) is connected with a three-phase branching line and a single-phase branching line;
the three-phase branch circuit comprises a Fuse (FU), a leakage protection switch (QF) and a relay (K1) which are connected in series in sequence after three-phase power is taken from the output end of the alternating current contactor (KM), and a three-phase branch circuit residual current transformer (TA1) is connected between the leakage protection switch (QF) and the relay (K1);
the single-phase branch line comprises an air switch (QA) and a relay (K2) which are sequentially connected in series after any one phase of three-phase power output from the alternating current contactor (KM) is taken, and a single-phase branch line residual current transformer (TA2) is connected between the air switch (QA) and the relay (K2);
the primary sides of the total residual current transformer (TA0), the three-phase branch line residual current transformer (TA1) and the single-phase branch line residual current transformer (TA2) are wound on corresponding lines, and the secondary sides of the total residual current transformer, the three-phase branch line residual current transformer and the single-phase branch line residual current transformer are used as output ends and are connected to the controller (13) through a current acquisition module;
multichannel intelligent distribution box still includes a zero line row (14), zero line in electronic box three-phase input end (10) passes in proper order isolator (QS) with cross behind under-voltage protector (11) with zero line row (14) link to each other.
2. A multiple intelligent power distribution box according to claim 1, wherein each line between said isolating switch (QS) and said total residual current transformer (TA0) is further provided with a temperature sensor (15), and the output end of each temperature sensor (15) is connected to said controller (13).
3. The multiple intelligent distribution box according to claim 1, wherein the coils of the alternating current contactor (KM), the relay (K1) and the relay (K2) are respectively connected with the controller (13).
4. A multiple intelligent distribution box according to claim 1, wherein the distribution box (30) is further provided with a smoke detector (16) inside, and the output end of the smoke detector (16) is connected to the controller (13).
5. A multiple intelligent power distribution box according to claim 1, wherein when the controller (13) detects that any one or more of the total residual current transformer (TA0), the temperature sensor (15) and the smoke detector (16) exceeds a corresponding threshold value, the controller (13) controls the coil of the ac contactor (KM) to lose power, and the contact of the ac contactor (KM) connected to the line is opened; when the controller (13) detects that a three-phase branch line residual current transformer (TA1) exceeds a corresponding threshold value, the controller (13) controls a coil of a relay (K1) to lose power, and contacts connected to a line of the relay (K1) are opened; when the controller (13) detects that the residual current transformer (TA2) of the single-phase branch line exceeds a corresponding threshold value, the controller controls the coil of the relay (K2) to lose power, and the contact point of the relay (K2) connected to the line is opened.
6. The multiple intelligent distribution box according to claim 1, wherein the controller (13) is further connected with a status indicator lamp (17) and an audible alarm device (18), and the status indicator lamp (17) and the audible alarm device (18) are mounted on the box door (31); when the multi-path intelligent distribution box works normally, the state indicator lamp (17) displays green; when the controller (13) detects that any one or more of the total residual current transformer (TA0), the three-phase branch line residual current transformer (TA1), the single-phase branch line residual current transformer (TA2), the temperature sensor (15) and the smoke detector (16) exceeds a corresponding threshold value, the state indicator lamp (17) displays red, and meanwhile, the sound alarm device (18) gives out alarm sound.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920894006.6U CN211151503U (en) | 2019-06-14 | 2019-06-14 | Multi-path intelligent distribution box |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920894006.6U CN211151503U (en) | 2019-06-14 | 2019-06-14 | Multi-path intelligent distribution box |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN211151503U true CN211151503U (en) | 2020-07-31 |
Family
ID=71742528
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920894006.6U Expired - Fee Related CN211151503U (en) | 2019-06-14 | 2019-06-14 | Multi-path intelligent distribution box |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN211151503U (en) |
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2019
- 2019-06-14 CN CN201920894006.6U patent/CN211151503U/en not_active Expired - Fee Related
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| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20200731 Termination date: 20210614 |