CN210840127U

CN210840127U - Emergency output circuit with light-adjusting selectable and energy-dividing built-in and emergency device

Info

Publication number: CN210840127U
Application number: CN201921599413.0U
Authority: CN
Inventors: 柯建军; 谭良平
Original assignee: Shenzhen Billda Technology Co ltd
Current assignee: Shenzhen Billda Technology Co ltd
Priority date: 2019-09-24
Filing date: 2019-09-24
Publication date: 2020-06-23
Anticipated expiration: 2029-09-24

Abstract

The utility model discloses a selectable dimming type built-in energy-dividing emergency output circuit and an emergency device, wherein a distribution control unit receives standby power output by an emergency module and distributes the standby power into N output electric quantities to be sent to N loads, so that energy-dividing power supply is realized; meanwhile, the distribution control unit sends a dimming signal to the dimming control circuit, and the dimming control circuit outputs dimming voltage to a dimming line of a load according to the dimming signal to perform dimming so as to realize remote dimming; or the distribution control unit sends the dimming signal to the dimming control circuit, and the dimming control circuit controls the dimming line of the load to perform dimming according to the dimming signal. The utility model discloses can realize the mode that long-range dimming or switch adjusted luminance, make the load can throw light on under the emergency situation, make the power reduction of load simultaneously, satisfy emergency lighting's needs, not waste the electric quantity again, the mode of adjusting luminance is more nimble, can select according to actual need.

Description

Emergency output circuit with light-adjusting selectable and energy-dividing built-in and emergency device

Technical Field

The utility model relates to an emergency lighting's technical field especially relates to a but emergent output circuit and emergency device of built-in branch ability of optional light modulation formula.

Background

Emergency lighting is lighting for evacuating people, ensuring safety or continuing work under the condition that a normal lighting system does not provide normal lighting under the condition of power failure, such as power failure, for example, some important places cannot work or move when lighting is turned off. Such as subway stations, underground hospitals, large and medium-sized shopping malls, hotels, restaurants, garages, underground entertainment places and the like. An emergency power supply is generally provided in emergency lighting. The emergency power supply is composed of a charger, an inverter, a storage battery, an isolation transformer, a change-over switch and other devices, and particularly, in large-scale markets, co-production occasions, families and other occasions, the LED lamps are needed to be used for lighting, so the emergency power supply needs to be arranged for emergency lighting, but the general emergency power supply is driven by a constant current source, on one hand, the existing emergency power supply can only supply power to one LED lamp, on the other hand, in the emergency situation, the LED lamps with light adjusting functions need to adjust the lighting brightness under the condition of emergency power supply, on the other hand, in large-scale markets or factories, the sites are large and multiple floors, so the distribution of the LED lamps is wide, when the emergency situation is reached, the LED lamps of each floor need to be adjusted manually to the sites, and one of the LED lamps is long in time, the manpower is wasted, and the other is that the dimming can not be performed in time, which causes energy waste.

SUMMERY OF THE UTILITY MODEL

To the weak point that exists in the above-mentioned technique, the utility model provides a but emergency output circuit and emergency device of the built-in branch ability of optional light modulation formula can realize the mode that long-range light modulation or switch were adjusted luminance, makes the load can throw light on under the emergency situation, makes the power reduction of load simultaneously, satisfies emergency lighting's needs, and the electric quantity of not wasting again, the mode of adjusting luminance is more nimble, can select according to actual need.

In order to achieve the above object, the utility model provides a but emergency output circuit of built-in branch of optional light modulation formula, including emergency module, be used for outputting reserve power supply to carry out emergency lighting when detecting commercial power outage for the load, still include emergency dimming control unit, remote dimming control unit, signal unit, distribution control unit and N first switch unit, N first output ends of distribution control unit are connected with N loads through N first switch unit respectively, and N more than or equal to 2, remote dimming control unit is connected with distribution control unit, signal unit, and emergency dimming control unit still with the line connection that adjusts luminance of distribution control unit and load;

the distribution control unit receives the standby power consumption output by the emergency module and distributes the standby power consumption into N parts of output power to be sent to N loads, so that energy distribution and power supply are realized; meanwhile, the signal unit receives a dimming signal input from the outside and sends the dimming signal to the remote dimming control unit, the remote dimming control unit outputs a pulse signal to the distribution control unit, and the distribution control unit controls the conduction time of each first switch unit according to the pulse signal to realize remote dimming; or the distribution control unit sends a dimming signal to the emergency dimming control unit, and the emergency dimming control unit controls the dimming line of the load to dim according to the dimming signal.

The output end of the remote dimming control unit is connected with the input end of the signal unit, the input end of the remote dimming control unit is connected with the second input end of the distribution control unit through a fourth resistor, and the fourth resistor and the input end of the dimming control unit are sequentially coupled with a fourth capacitor and a crystal oscillator.

The signal unit comprises a signal control chip and a receiving coil connected with the input end of the signal control chip, and the receiving coil receives a dimming signal sent by external monitoring equipment and sends the dimming signal to the dimming control unit through the signal control chip.

Wherein, the signal unit comprises one of a WiFi signal transceiving device, a Bluetooth device and an optical fiber signal transceiving device.

The emergency dimming control unit comprises a starting switch circuit and a working switch circuit, wherein the electric quantity of the starting switch is connected with the emergency module and the dimming line of the load and then grounded, so that when the emergency module is started, a high level is conducted and output to start the load; the working switch circuit is connected with the distribution control unit and is coupled with the starting switch circuit and the dimming line of the load through a resistor and then is grounded, and the distribution control unit controls the working switch circuit to conduct and pull down the working voltage of the dimming line of the load.

The starting switch circuit comprises a fourth MOS tube and a first divider resistor, the fourth MOS tube is connected with the emergency module and is grounded after the negative electrode of the dimming line, one end of the first divider resistor is connected with the fourth MOS tube and the emergency module, and the other end of the first divider resistor is connected with the positive electrode of the dimming line and the output end of the working switch circuit.

The working switch circuit comprises a second triode, a second voltage-dividing resistor and a capacitor, wherein the control end of the second triode is connected with the output end of the distribution control unit and the input end of the capacitor, the output end of the capacitor is grounded, one end of the second triode is grounded, the other end of the second triode is connected with the second voltage-dividing resistor, and the other end of the second voltage-dividing resistor is connected with the negative electrode of the dimming line after being connected with the first voltage-dividing resistor in parallel.

The utility model discloses a light dimmer, including the light dimmer, the light dimmer is connected with the grid of fifth MOS pipe and the positive pole of the accent light of load, the source electrode of fifth MOS pipe is connected with the negative pole of light dimmer, the drain electrode is connected with the negative pole of the accent light of load, the light dimmer is through control the condition of switching on of fifth MOS pipe is right the load is adjusted luminance.

The distribution control unit comprises a distribution control chip and N paths of first switch circuits, the input end of the distribution control chip is connected with the output end of the emergency module, N output ends of the distribution control chip are respectively connected with the control ends of the N paths of first switch circuits, and the output ends of the N paths of first switch circuits are used for being connected with N loads.

The utility model also provides an emergency device of the built-in branch ability of optional light modulation formula, including emergency power source and control panel, the integration has on the control panel the built-in emergent output circuit who divides the ability of optional light modulation formula, just emergent output circuit's input is connected with emergency power source's output and is received emergency power source provides stand-by current and distributes stand-by current and form many copies output to remote control unit or the emergent unit of adjusting luminance through emergent output circuit adjusts luminance.

The utility model has the advantages that: compared with the prior art, the utility model provides a but emergent output circuit and emergency device of built-in branch ability of optional light modulation formula is provided with the distribution control unit between emergency module and load, and the first output end of distribution control unit is equipped with N, and connect N load respectively, N more than or equal to 2, and emergent light modulation control circuit still with the light modulation line connection of distribution control unit and load, still be equipped with signal unit and remote control unit, the distribution control unit receives the reserve power consumption of emergency module output and distributes it into N output electric quantity and sends N loads, realize dividing the power supply; meanwhile, the distribution control unit sends a dimming signal to the dimming control circuit, the dimming control circuit outputs dimming voltage to a dimming line of a load to perform dimming according to the dimming signal, or the signal unit receives a dimming signal input from the outside and sends the dimming signal to the remote dimming control unit, and the distribution control unit controls the conduction time of each first switch unit according to the pulse signal to realize dimming; the mode that can realize long-range dimming or switch adjust luminance makes the load can throw light on under the emergency condition, makes the power reduction of load simultaneously, satisfies emergency lighting's needs, does not waste the electric quantity again, and the mode of adjusting luminance is more nimble, can select according to actual need.

Drawings

Fig. 1 is a first block diagram of the present invention;

fig. 2 is a second block diagram of the present invention;

fig. 3 is a third block diagram of the present invention;

fig. 4 is a fourth block diagram of the present invention;

fig. 5 is a first partial circuit diagram of the present invention;

fig. 6 is a second part of the present invention.

The main element symbols are as follows:

1. an emergency module; 2. A distribution control unit; 21, distributing a control chip; 22. a first switch unit;

3. an emergency dimming control circuit; 31. starting a switch circuit; 32. a working switch circuit; 4. a load; 5. a second switching circuit; 6. a remote dimming control unit; 7. a signal unit; 9. a mains dimming unit; 10. and (3) commercial power.

Detailed Description

In order to make the present invention clearer, the present invention will be further described with reference to the accompanying drawings.

Referring to fig. 1, the emergency device with selectable dimming type internal energy division of the present invention includes an emergency power supply and a control panel, wherein the control panel is integrated with a selectable dimming type internal energy division emergency output circuit, and an input end of the emergency output circuit is connected to an output end of the emergency power supply to receive a standby current provided by the emergency power supply and distribute the standby current to form multiple outputs, as shown in fig. 1, the loads are respectively loads 4-1, 4-2 to 4-N, so as to realize energy division power supply, and one emergency power supply can supply power to multiple loads 4; the light modulation is carried out through a remote control unit or an emergency light modulation unit of the emergency output circuit, wherein the selectable light modulation type built-in energy distribution emergency output circuit comprises an emergency module 1 used for outputting standby power to a load for emergency lighting when the power failure of mains supply is detected, a distribution control unit 2 and an emergency light modulation control circuit 3 which are connected with the emergency module 1, a remote light modulation control unit 6, a signal unit 7, a distribution control unit 2 and N first switch units 22, the remote light modulation control unit 6 is connected with the distribution control unit 1 and the signal unit 7, the signal unit 7 receives light modulation signals input from the outside and sends the light modulation signals to the remote light modulation control unit 6, the remote light modulation control unit 6 outputs pulse signals to the distribution control unit 2, the distribution control unit 2 controls the conduction time of each first switch unit 22 according to the pulse signals, realize long-range dimming, or distribution control unit 2 sends the signal of adjusting luminance to emergent dimming control circuit 3 simultaneously, emergent dimming control circuit 3 adjusts luminance according to the line of adjusting luminance of the signal output dimming voltage of adjusting luminance to the load, can realize the mode of long-range dimming or the mode of switch dimming, makes the load can throw light on under the emergency condition, makes the power of load reduce simultaneously, satisfies the needs of emergency lighting, does not waste the electric quantity again, and the mode of adjusting luminance is more nimble, can select according to actual need.

In this embodiment, the remote dimming control unit 6 includes a remote control chip U5, a fourth capacitor C9 and a crystal oscillator Y1, an output terminal of the remote control chip U5 is connected to an input terminal of the signal unit 7, an input terminal of the remote control chip U5 is connected to the second input terminal of the assignment control unit 2 through a fourth resistor R23, and a fourth capacitor C9 and a crystal oscillator Y1 are sequentially coupled between the fourth resistor R23 and the input terminal of the dimming control unit 2; and the signal unit 7 comprises a signal control chip U2 and a receiving coil L1 connected with the input end of the signal control chip U2, the receiving coil L1 receives the dimming signal sent by the outside monitoring equipment and sends the dimming signal to the dimming control unit 6 through the signal control chip U2, wherein, the pin 5 of the signal control chip U2 is connected with the pin 13 of the remote control unit 6 and then grounded, the pin 8 of the signal control chip U2 is connected with the pin 2 of the remote control unit 6, and simultaneously, pin 7 of the signal control chip U2 and pin 4 of the remote control unit 6 are connected to the power supply output terminal of the assignment control unit, respectively, so that the assignment control unit 2 supplies power thereto, and pin 6 of the remote control unit 6 is connected to the control terminal of the dispensing control unit 2 through a resistor R23, meanwhile, a fourth capacitor C9 and a crystal oscillator Y1 are sequentially coupled between the fourth resistor R23 and the input end of the dimming control unit 2; thus, when the signal control chip U2 receives the dimming signal transmitted by the outside monitoring device through the receiving coil L1, the pin 2 of the remote control unit 6 receives the dimming signal, and generates a standard oscillation signal through the fourth capacitor C9 and the crystal oscillator Y1, and then transmits a control signal to the distribution control unit 2 through the pin 6, so that the distribution control unit 2 controls the on-time of the first switch unit 22 according to the control signal, and the signal unit 1 includes one of a WiFi signal transceiver, a bluetooth signal transceiver and an optical fiber signal transceiver.

In this embodiment, one of the realizable modes is: the emergency dimming control unit 3 comprises a starting switch circuit 31 and a working switch circuit 32, and the electric quantity of the starting switch is connected with the dimming lines of the emergency module and the load and then grounded so as to conduct and output a high level to start the load when the emergency module is started; the working switch circuit is connected with the distribution control unit, is coupled with the starting switch circuit through a resistor and is grounded after being connected with the dimming line of the load, the distribution control unit controls the working switch circuit to conduct the working voltage for reducing the dimming line of the load, the starting switch circuit 31 is connected to the emergency module when the mains supply 10 is just powered off, and the starting voltage is supplied to the emergency module through the dimming line of the load 4 to start the load to work; when the load is started, the distribution control unit 2 enables the working switch circuit to be connected, the working voltage of the dimming line of the load is reduced, the load works in a low-power state, the dimming effect is achieved, the load can illuminate under an emergency condition, meanwhile, the power of the load is reduced, the requirement of emergency illumination is met, and the electric quantity is not wasted.

One of the ways that can be specifically realized is; the starting switch circuit 31 comprises a fourth MOS tube Q10 and a first voltage-dividing resistor, the first voltage-dividing resistor comprises a resistor R33 and a resistor R34, the fourth MOS tube Q10 is connected with the emergency module 1 and the negative electrode of the dimming line and then grounded, one ends of the first voltage-dividing resistors R33 and R34 are connected with the fourth MOS tube Q10 and the emergency module 1, the other ends of the first voltage-dividing resistors are connected with the positive electrode of the dimming line and the output end of the working switch circuit, when the emergency module 1 outputs voltage, the fourth MOS tube Q10 is conducted, and at the moment, the voltage of the emergency module 1 connected with the fourth MOS tube is divided by the first voltage-dividing resistors R33 and R34 to form the starting voltage of the load and is input to the negative electrode of the dimming line; the working switch circuit 32 includes a second triode Q9, a second voltage-dividing resistor R30 and a capacitor C9, a control end of the second triode Q9 is connected with an output end of the distribution control unit 2 and an input end of the capacitor C9, an output end of the capacitor C9 is grounded, one end of the second triode Q9 is grounded, the other end of the second voltage-dividing resistor R30 is connected with the second voltage-dividing resistor R30 in parallel, and then is connected with a negative electrode of the dimming line, at this time, for example, the second triode is a PNP type triode, a voltage output by the emergency module 1 is 12V, assuming that resistance values of the first voltage-dividing resistor R33 and the first voltage-dividing resistor R34 are 20K and 100K respectively, and resistance value of the second voltage-dividing resistor R30 is 1K, when the mains supply is just powered off, the fourth MOS tube Q9 is connected with 12V, and outputs 10V starting voltage after voltage division by the first voltage-dividing resistors R33 and R34, so as to start the load; at this time, the distribution control unit 2 inputs 5V of voltage to pass through the resistor R19 and then charges the C9, before the C9 is not fully charged, the second triode Q9 is in an unstable state, after the C9 is fully charged, the load is started at this time, the second triode Q9 is connected, after the second divider resistor 30 is connected in parallel with the R34 in the first divider resistor at this time, the first divider resistor R34 is connected in series with the R33, at this time, the starting voltage is pulled to about 0.7V, so that the load continuously works in a low-power state, and the emergency lighting is met, and meanwhile, the electric quantity is saved.

In this embodiment, except for dimming for emergency lighting, dimming may be performed when the commercial power is supplied, and one of the realizable modes is as follows: the utility power dimming device further comprises a utility power dimming unit 9, the utility power dimming unit 9 comprises a fifth MOS transistor Q11, the positive electrode of the dimmer is respectively connected with the grid of the fifth MOS transistor Q11 and the positive electrode of the dimming line of the load, the source of the fifth MOS transistor Q11 is connected with the negative electrode of the dimmer, the drain of the fifth MOS transistor Q11 is connected with the negative electrode of the dimming line of the load, the dimmer dims the load by controlling the conduction condition of the fifth MOS transistor Q11, specifically, when the fifth MOS transistor Q11 is an N-type MOS transistor, the grid of the fifth MOS transistor Q11 is connected with the positive electrode of the dimmer through a resistor R31, the positive electrode of the dimmer is connected with the negative electrode of the dimming line, the source of the fifth MOS transistor Q11 is connected with the negative electrode of the dimmer, and the drain of the fifth MOS transistor Q11 is connected with the positive electrode of the dimming line of the load, when the utility power is supplied by the utility power, the dimmer dims the load by controlling the conduction condition of the fifth MOS transistor Q11, thereby playing a role of, there is some electric quantity in the dimming circuit of commercial power, at this moment, the conflict can take place when standing the horse to adjust luminance promptly, still include first photoelectric coupler U5, the collector and the projecting pole of first photoelectric coupler U5 are connected with grid and the academy of fifth MOS pipe Q11 respectively, and the positive pole of second photoelectric coupler U5 is connected with the second output terminal of distribution control unit 1, the negative pole is connected with ground, when the commercial power has a power failure, distribution control unit makes second photoelectric coupler U5 start through second

output terminal pin

11 and 12, and then second photoelectric coupler U5 pulls down the level of the grid of fifth MOS pipe Q11, make fifth MOS pipe Q11 break off completely, the security of load 4 has been guaranteed.

In this embodiment, one of the realizable manners of the distribution control unit 2 is that the distribution control unit 2 includes a distribution control chip 21 and N first switch circuits 22, an input end of the distribution control chip 21 is connected with an output end of the emergency module 1, N first output ends of the distribution control chip 21 are respectively connected with control ends of the N first switch circuits 22, and the other end of the N first switch circuits 22 is used for accessing a load, so that when the emergency module 1 detects that the commercial power is cut off, the emergency module sends the standby power to the distribution control chip, the distribution control chip divides the standby power into N parts, and then the N first switch circuits 22 are respectively turned on and respectively communicated with the N loads to supply power to the loads in an emergency; for example, assuming that N is equal to 2, the distribution control unit 2 includes a distribution control chip 21 and 2 first switch circuits 22, and at this time, the electric energy is referred to as the power supply of the emergency module, and the circuit of the embodiment is characterized in that after each first output terminal is connected to a load, each load is connected in parallel, at this time, the voltage of the load connected to each output terminal is the same, and the sum of the currents of each output terminal is the total current, and it can be known from the relationship between the power, the voltage and the current that, when the voltage is constant, the total input current only needs to be distributed into a plurality of parts, and the distribution of the electric energy can be realized, assuming that the standby current supplied by the emergency module 1 at this time is 12A, at this time, the distribution control chip 21 receives the standby current of 12A, distributes the standby current of 12A into 2 parts of output currents of 6A on average, and turns on the 2 first switch circuits 22, the output currents of 2 parts and 6A are respectively supplied to 2 loads, and the standby electric energy of the emergency module can be distributed; one of the ways in which the first switch circuit 22 can be implemented is: each first switch circuit 22 includes a first triode and a first MOS transistor, taking access to 2 loads as an example, the 2-way first triode is a triode Q5 and a triode Q6 respectively, the first MOS transistor is a MOS transistor Q7 and a MOS transistor Q8 respectively, the allocation control chip 21 is a single chip microcomputer, which is U4 in the drawing, specifically, bases of the triodes Q5 and Q6 are connected to

input pins

9 and 10 of the allocation control chip U4 respectively, collectors of the triodes Q5 and Q6 are grounded, emitters of the triodes Q5 and Q6 are connected to gates of the MOS transistors Q7 and Q8 respectively, drains of the MOS transistors Q7 and Q8 are connected to ground respectively, sources of the MOS transistors Q7 and Q8 are connected to the negative electrode of the load respectively, and input pins 13 to 15 of the allocation control chip U4 are connected to the emergency module 1.

In this embodiment, the power supply further includes a second switch circuit 5, the second switch circuit 5 is connected to the negative electrode of the commercial power and the load and then grounded, when the commercial power is supplied, the second switch circuit 5 is turned on, and the commercial power and the load form a power supply loop; when the utility power is cut off, the second switch circuit 5 is disconnected, the emergency module 1 supplies power, and because the second switch circuit 5 does not immediately power off when the utility power is just cut off, a delay exists, namely, a certain time is needed for the complete disconnection of the second switch circuit 5, the emergency module 1 already starts to supply power, the second switch circuit 5 which is not completely disconnected supplies power to the LED lamp simultaneously with the emergency module 1, and a certain damage is caused to the load, therefore, the system is further provided with N photoelectric couplers, the anode of the photoelectric coupler is connected with the second output end of the distribution control unit 2, the cathode of the photoelectric coupler is grounded, the collector of the photoelectric coupler is connected with the control end of the second switch unit 5, the emitter of the photoelectric coupler is connected with the second end of the second switch unit 5, when the utility power is cut off, the anode of the photoelectric coupler receives a closing signal sent by the distribution control unit 2 and outputs a low-level signal through the collector to turn off the second switch unit 5, the utility model has the advantages of play the effect of commercial power complete stop power supply, guaranteed the security of load 4, and a specific embodiment is: each second switch circuit 5 includes a second MOS transistor and a third MOS transistor, gates of the second MOS transistor and the third MOS transistor are respectively coupled between the positive electrode DR + of the utility power and the positive electrode LED1+ of the load, a drain of the second MOS transistor is connected to the negative electrode DR-of the utility power and a source of the utility power is connected to a drain of the third MOS transistor, a drain of the third MOS transistor is connected to the negative electrode LED 1-of the load, taking the distribution control unit 2 as an example with two output terminals, which can be connected to 2 loads, at this time, taking one of the output terminals as an example, the second switch circuit 5 of one of the output terminals includes a second MOS transistor and a third MOS transistor which are respectively a MOS transistor Q1 and a MOS transistor Q2, and an optical coupler U2, at this time, gates of the MOS transistors Q1 and Q2 are respectively connected to the positive electrode of the utility power through resistors R4, R3, R2 and R2 in series, and a drain of the MOS transistor Q1 is connected to the negative electrode DR-of the utility power, and a source of the MOS transistor Q3884 is connected to the emitter of the MOS transistor Q6853 and Q73742, the drain of the MOS transistor Q2 is connected to the negative LED 1-of the load, the collector of the photocoupler U2 is connected to the gates of the MOS transistor Q1 and the MOS transistor Q2, the anode is connected to the second output terminal of the distribution control chip U4, the cathode is connected to the anode of the photocoupler U3, and the cathode of the photocoupler U3 is grounded, at this time, when the utility power is supplied, the negative DR-of the utility power is connected in series through the resistors R1, R2, R3 and R4 to turn on the MOS transistor Q1 and the MOS transistor Q2, at this time, the utility power and the load or the driver form a loop to supply power, here, the utility power is not directly connected to the MOS transistor Q1 and the MOS transistor Q2, but needs to be rectified by the rectifier bridge D4 to be connected to the MOS transistor Q1 and the MOS transistor Q2, the positive pole of the utility power is rectified by the rectifier bridge and then connected to the negative LED 2 of the MOS transistor Q2 and the drain 2 after being rectified by the rectifier bridge 2 and the rectifier bridge 2. The mains supply is more stable to be connected; when the commercial power is cut off, the distribution control chip U4 controls the collector of the photoelectric coupler U2 to be pulled to the level of the gates of the MOS transistor Q1 and the MOS transistor Q2, so that the MOS transistor Q1 and the MOS transistor Q2 are disconnected, the commercial power is completely disconnected from the load, and the load is protected.

The above disclosure is only for the specific embodiments of the present invention, but the present invention is not limited thereto, and any changes that can be made by those skilled in the art should fall within the protection scope of the present invention.

Claims

1. A selectable dimming type built-in energy-division emergency output circuit comprises an emergency module, a remote dimming control unit, a signal unit, a distribution control unit and N first switch units, wherein the emergency module is used for outputting standby power to a load for emergency lighting when the power failure of a mains supply is detected;

2. The selectable dimming built-in energy-sharing emergency output circuit according to claim 1, wherein the output terminal of the remote dimming control unit is connected to the input terminal of the signal unit, the input terminal of the remote dimming control unit is connected to the second input terminal of the distribution control unit via a fourth resistor, and the fourth resistor and the input terminal of the dimming control unit are sequentially coupled to a fourth capacitor and a crystal oscillator.

3. The selectable dimming built-in energy-division emergency output circuit according to claim 2, wherein the signal unit comprises a signal control chip and a receiving coil connected to an input end of the signal control chip, and the receiving coil receives a dimming signal sent by an external monitoring device and sends the dimming signal to the dimming control unit through the signal control chip.

4. The selectable dimmed emergency output circuit with built-in power splitting according to claim 3, wherein the signal unit comprises one of a WiFi signal transceiver, a Bluetooth signal transceiver, and a fiber optic signal transceiver.

5. The selectable dimming built-in energy-division emergency output circuit according to claim 1, wherein the emergency dimming control unit comprises a start switch circuit and a working switch circuit, the start switch circuit is connected with the emergency module and the dimming line of the load and then grounded, so that when the emergency module is started, the emergency module is conducted to output a high level to start the load; the working switch circuit is connected with the distribution control unit and is coupled with the starting switch circuit and the dimming line of the load through a resistor and then is grounded, and the distribution control unit controls the working switch circuit to conduct and pull down the working voltage of the dimming line of the load.

6. The selectable dimming type emergency output circuit with built-in energy division according to claim 5, wherein the start switch circuit comprises a fourth MOS transistor and a first voltage dividing resistor, the fourth MOS transistor is connected to the emergency module and the negative electrode of the dimming line and then grounded, one end of the first voltage dividing resistor is connected to the fourth MOS transistor and the emergency module, and the other end of the first voltage dividing resistor is connected to the positive electrode of the dimming line and the output end of the working switch circuit.

7. The selectable dimming built-in energy-division emergency output circuit according to claim 6, wherein the operation switch circuit comprises a second triode, a second voltage-dividing resistor and a capacitor, a control terminal of the second triode is connected with an output terminal of the distribution control unit and an input terminal of the capacitor, an output terminal of the capacitor is grounded, one terminal of the second triode is grounded, the other terminal of the second triode is connected with the second voltage-dividing resistor, and the other terminal of the second voltage-dividing resistor is connected with a negative electrode of the dimming line after being connected with the first voltage-dividing resistor in parallel.

8. The selectable dimming type emergency output circuit with built-in energy division according to claim 1, further comprising a mains dimming unit, wherein the mains dimming unit comprises a fifth MOS transistor and a first resistor, an anode of a dimmer is respectively connected to a gate of the fifth MOS transistor and an anode of a dimming line of a load, a source of the fifth MOS transistor is connected to a cathode of the dimmer, a drain of the fifth MOS transistor is connected to a cathode of the dimming line of the load, and the dimmer dims the load by controlling a conduction condition of the fifth MOS transistor.

9. The selectable dimming built-in energy-splitting emergency output circuit according to claim 1, wherein the distribution control unit comprises a distribution control chip and N first switch circuits, an input terminal of the distribution control chip is connected to an output terminal of the emergency module, N output terminals of the distribution control chip are respectively connected to control terminals of the N first switch circuits, and output terminals of the N first switch circuits are used for connecting N loads.

10. An emergency device with a built-in energy distribution function and a selectable dimming function, which is characterized by comprising an emergency power supply and a control board, wherein the control board is integrated with an emergency output circuit with the built-in energy distribution function and the input end of the emergency output circuit is connected with the output end of the emergency power supply to receive the standby current provided by the emergency power supply and distribute the standby power to form a plurality of outputs, and dimming is performed through a remote control unit or an emergency dimming unit of the emergency output circuit.