CN114142592A

CN114142592A - Fire-fighting emergency lighting circuit system

Info

Publication number: CN114142592A
Application number: CN202111628120.2A
Authority: CN
Inventors: 潘成; 潘世高; 付建祖; 梁顺发
Original assignee: Aerospace Baykee Guangdong Technology Co ltd
Current assignee: Aerospace Baykee Guangdong Technology Co ltd
Priority date: 2021-12-28
Filing date: 2021-12-28
Publication date: 2022-03-04

Abstract

The present disclosure relates to a fire emergency lighting circuit system, comprising a main power supply, an a-type lamp, a B-type lamp, a converter, wherein the main power supply is connected to a first end of the converter, the B-type lamp is also connected to the first end of the converter; the second end of the current transformer is connected to the A-type lamp. Therefore, the circuit is simple, the problems of high construction difficulty and high equipment cost when the A-type lamp and the B-type lamp respectively use one set of system in the prior art are solved, and meanwhile, the circuit is simple and easy to use; and the circuit is simple and easy to set, reduces the construction difficulty and has practicability.

Description

Fire-fighting emergency lighting circuit system

Technical Field

The utility model relates to a fire-fighting apparatus power supply technical field especially relates to a fire control emergency lighting circuit system.

Background

With the advance of urbanization, buildings become a part of cities, and fire emergency lighting in the buildings is an important facility of the buildings, and plays a great role in protecting and indicating the production and life of human beings. The fire-fighting emergency lighting lamp is divided into an A-type lamp and a B-type lamp, and the A-type lamp and the B-type lamp both provide great functions during fire-fighting evacuation.

The existing fire-fighting emergency lighting circuit system for supplying power to the A-type lamp and the B-type lamp is mostly two different systems, and in actual fire-fighting equipment construction, inconvenience is brought to people by installation, construction difficulty is improved, and the purchase cost of necessary equipment is increased.

Disclosure of Invention

To address the above technical problems, or at least partially solve the above technical problems, the present disclosure provides a fire emergency lighting circuit system.

The invention provides a fire-fighting emergency lighting power supply system which comprises a main power supply, an A-type lamp, a B-type lamp and a converter, wherein the main power supply is connected to a first end of the converter and the B-type lamp; the second end of the current transformer is connected to the A-type lamp.

The converter is a bidirectional converter.

Wherein the main power supply comprises a relay for disconnecting the main power supply from the converter or the B-type light fixture.

The fire-fighting emergency lighting circuit system further comprises an energy storage and power supply unit, and the battery pack is connected with the second end of the converter and the A-type lamp respectively.

Wherein, the energy storage power supply unit also comprises a charger, the charger is used for charging the battery pack, the battery pack is connected with the first end of the charger, the second end of the charger is connected with the second end of the converter,

the energy storage power supply unit further comprises a diode, the battery pack is connected with a first end of the diode, a second end of the diode is connected to a second end of the converter, and the diode is used for blocking current flowing from the main power supply through the diode.

The fire emergency lighting circuit system further comprises a shunt controller, wherein a first end of the shunt controller is connected to a second end of the converter, and a second end of the shunt controller is connected to the A-type lamp to shunt current of the main power supply.

The fire-fighting emergency lighting circuit system further comprises an MCU, wherein the MCU is respectively connected with the relay, the converter, the charger, the battery pack and the shunt controller.

And the connecting circuit of the MCU, the relay, the converter, the charger, the battery pack and the shunt controller is a two-bus.

Compared with the prior art, the technical scheme provided by the embodiment of the disclosure has the following advantages:

the system controls the relay, the converter, the charger, the battery pack and the shunt controller through the MCU, when the main power supply has electric energy, the electric energy directly flows into the B-type lamp to supply power to the B-type lamp, and flows out from the second end of the converter to supply power to the A-type lamp through the rectification of the converter. When the main power supply has no electric energy, the relay is immediately controlled to disconnect the main power supply from the converter, and the battery pack is controlled to discharge the electric energy to supply to the A-type lamp and the B-type lamp. The scheme adopts the battery as a standby means when the main power supply is out of power, and is simple and easy to use; and the circuit is simple, and easy the setting has reduced the construction degree of difficulty, possesses the practicality.

Drawings

The accompanying drawings, which are incorporated in and constitute a part of this specification, illustrate embodiments consistent with the present disclosure and together with the description, serve to explain the principles of the disclosure.

In order to more clearly illustrate the embodiments or technical solutions in the prior art of the present disclosure, the drawings used in the description of the embodiments or prior art will be briefly described below, and it is obvious for those skilled in the art that other drawings can be obtained according to the drawings without inventive exercise.

Fig. 1 is a block diagram of a fire emergency lighting circuit system according to an embodiment of the present disclosure;

wherein, 1, a main power supply; 2. a relay; 3. a B-type lamp; 4. a current transformer; 5. a type A light fixture; 6. a battery pack; 7. a charger; 8. a diode; 9. a shunt controller; 10. and (6) an MCU.

Detailed Description

In order that the above objects, features and advantages of the present disclosure may be more clearly understood, aspects of the present disclosure will be further described below. It should be noted that the embodiments and features of the embodiments of the present disclosure may be combined with each other without conflict.

In the following description, numerous specific details are set forth in order to provide a thorough understanding of the present disclosure, but the present disclosure may be practiced in other ways than those described herein; it is to be understood that the embodiments disclosed in the specification are only a few embodiments of the present disclosure, and not all embodiments.

Fig. 1 is a block diagram of a fire emergency lighting circuit system according to an embodiment of the present disclosure.

Referring to fig. 1, an embodiment of the present invention provides a structural diagram of a fire emergency lighting circuit system, specifically, a main power supply 1, configured to supply power to an a-type lamp 5 and a B-type lamp 3 in the fire emergency lighting circuit system, where the main power supply 1 is generally a power grid, that is, 220V ac power is supplied, and in other embodiments, the main power supply 1 may be a power supply such as photovoltaic power, generator power, wind power, or the like.

Specifically, the relay 2 is used for disconnecting the main power supply 1 from the B-type lamp and connecting the main power supply 1 with the converter 4. Which does the above-mentioned disconnection operation when the main power supply 1 is powered off.

Specifically, the B-type lamp 3, which is a B-type lamp in the prior art, refers to a fire-fighting emergency lamp with a common voltage AC220V, that is, a common fire-fighting emergency lamp in the conventional parlance. That is, the operating environment is typically 220 volts ac.

Specifically, the converter 4 is a bidirectional converter for converting the ac power of the main power supply 1, i.e., converting the ac power into the dc power. And for inverting the dc power in the battery pack 6 to ac power.

Specifically, the a-type lamp 5 is an a-type lamp in the prior art, and the definition of the a-type lamp in article GB51309-2018 technical standard for fire emergency lighting and evacuation indication system 2.0.3 is that rated operating voltages of a main power supply and a storage battery power supply are not greater than those of a DC36V, so in brief, the operating environment of the a-type lamp is generally 36v direct current.

Specifically, the battery pack 6 is used for supplying power to the B-type lamp 3 and the a-type lamp 5 when the main power supply 1 is disconnected, and the battery pack 6 may be a lithium battery, and in other embodiments, is a storage battery such as a lead-acid storage battery.

Specifically, the charger 7 is used for stabilizing current and cooperating with charging the battery pack 6, the charger 7 is a conventional technology, and current in the charger 7 can only flow in one direction, namely, current flowing from the converter 4 to the charger 7 can pass through the charger 7.

In particular, the diode 8 is used for rectification, allowing only the current from the battery 6 to the inverter 4 and the battery 6 to the a-type light fixture 5 to pass, and in other embodiments, the diode 8 may be a light emitting diode.

In particular, the shunt controller 9 is used to shunt current from the current transformer 4 or battery 6 to the type a light fixture 5.

Specifically, the MCU10 is connected to the relay 2, the converter 4, the battery pack 6, the charger 7, and the shunt controller 9 in a two-bus manner, and controls the relay 2, the converter 4, the battery pack 6, the charger 7, and the shunt controller 9 to function. The two buses combine power supply and signals into one, the advantage of using the two buses is that the circuit can play a short-term power supply detection effect when no electricity exists, the anti-interference capability is stronger, the construction cost is saved, and the difficulty of laying is lower. The MCU10 can receive commands from external devices to perform operations.

The operation of the system is described in terms of specific embodiments.

In the first embodiment, when the main power supply 1 is supplying power normally, the main power supply 1 is a power grid in this embodiment, and in other embodiments, the power can be photovoltaic power, generator power, wind power, etc., the MCU10 controls the relay 2 to connect to the first contact, and then ac current flows from the main power supply 1 to the B-type lamp 3 and the converter 4, respectively. The current is led to the type B lamp 3 and powers the latter. At the same time, current will also flow into the first terminal of the converter 4 and be processed by the converter 4 into a dc current, which flows out of the second terminal of the converter 4 as a dc current into the first terminal of the charger 7 and the first terminal of the shunt controller 9, respectively.

The charger 7 receives the inflow of the direct current, stabilizes it and makes the direct current flow into the battery pack 5, and the MCU10 controls the battery pack 5 so that the battery pack 5 enters a charged state and the battery pack 5 will not discharge. The number of the a-type lamps 5 may be one or more, and when there are a plurality of the a-type lamps 5, a parallel relationship is formed between the a-type lamps 5, and in other embodiments, the parallel relationship is configured to be connected to the second end of the diode 7 and the second end of the converter 4. In this embodiment, the shunt controller 9 receives the dc current from the second terminal of the converter 4, and the MCU10 controls the shunt controller 9 to make the shunt controller 9 shunt the dc current. In the present embodiment, the a-type lamps 5 are connected to the second end of the shunt controller 9 in a parallel relationship, so as to supply power to the a-type lamps 5.

In the second embodiment, when the main power supply 1 is not powered, the MCU10 receives a command from an external device, and the MCU10 controls the relay 2 to connect to the second contact, so that the main power supply 1 is disconnected from the converter 3 and the B-type lamp 3, in order to prevent the current of the subsequent battery pack 6 from flowing to the main power supply 1 to cause power loss, in the present embodiment, the main power supply 1 is a power grid, and in other embodiments, the power supply may be photovoltaic power, generator power, wind power, or the like. After the main power supply 1 is disconnected from the converter 3 and the B-type lamp 3, the MCU10 controls the battery pack 6 to make the latter enter a discharging state, if the charger 7 allows a bidirectional current to flow, the charger 7 is controlled to stop the dc current of the battery pack 6 from flowing into the second end of the charger 7 and flowing out of the first end of the charger 7, and if the charger 7 does not allow a bidirectional current to flow, the operation is not performed. At this time, the dc current flows out from the battery pack 6 and flows through the diode 7, the diode 7 allows only the dc current flowing from the battery pack 6 to the diode 7, so the dc current can flow in from the first end of the diode 7 and flow out from the second end of the diode 7, and after the dc current flows out, the dc current is divided into two paths. The first path is as follows: a dc current flows from the second terminal of the diode 7 to the converter 4, the converter 4 converts the dc current into an ac current for supplying the B-mode lamp 3, the dc current flows into the second terminal of the converter 4, and after processing, the ac current flows from the first terminal of the converter 4 to the B-mode lamp 3, so as to supply the B-mode lamp 3. And a second path: in other embodiments, the dc current flows from the second end of the diode 7 to the shunt controller 9, and in other embodiments, the dc current flows from the second end of the diode 7 to the a-type lamps 5 directly, the a-type lamps 5 may be one or more, and when there are a plurality of the a-type lamps 5, a parallel relationship is formed between the a-type lamps 5, and the parallel relationship is configured to be connected to the second end of the diode 7 and the second end of the converter 4, so as to supply power to the a-type lamps 5, in this embodiment, the dc current flows from the second end of the diode 7 to the first end of the shunt controller 9, and after the preset control of the MCU10, the shunted dc current flows from the second end of the shunt controller 9 to the a-type lamps 5, where the a-type lamps 5 may be one or more, and the a-type lamps 5 form a parallel relationship when there are a plurality of the a-type lamps 5, this structure is connected to the second end of the shunt controller, thus enabling the power supply of the type a luminaire 5.

The MCU10 is a Micro-Controller Unit (MCU) in the present invention, and has the functions of measuring current and opening/closing switches, for example, the relay 2 performs the opening/closing operation of the main power supply 1, the adjustment and measurement operation of the bidirectional converter 3, the adjustment and detection operation of the charger 7, the measurement and maintenance operation of the battery pack 6, and the current control command of the shunt Controller 9, and in addition, the MCU10 may also receive the monitoring and modification of the external device to be prompted by the manual detection of the external device.

It is noted that, in this document, relational terms such as "first" and "second," and the like, may be used solely to distinguish one entity or action from another entity or action without necessarily requiring or implying any actual such relationship or order between such entities or actions. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of other identical elements in a process, method, article, or apparatus that comprises the element.

The foregoing are merely exemplary embodiments of the present disclosure, which enable those skilled in the art to understand or practice the present disclosure. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the generic principles defined herein may be applied to other embodiments without departing from the spirit or scope of the disclosure. Thus, the present disclosure is not intended to be limited to the embodiments shown herein but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. A fire-fighting emergency lighting circuit system is characterized by comprising a main power supply, an A-type lamp, a B-type lamp and a converter, wherein the main power supply is connected to a first end of the converter and the B-type lamp; the second end of the current transformer is connected to the A-type lamp.

2. A fire emergency lighting circuit system as in claim 1, wherein said current transformer is a bi-directional current transformer.

3. A fire emergency lighting circuit system as in claim 2 wherein said main power supply includes a relay for disconnecting the main power supply from said current transformer or said type B light.

4. A fire emergency lighting circuit system as in claim 3, further comprising an energy storage and power supply unit, said energy storage and power supply unit comprising a battery pack, said battery pack being connected to the second end of the converter and the a-type light fixture, respectively.

5. A fire emergency lighting circuit system as in claim 4 wherein said energy storage and power supply unit further comprises a charger for charging said battery pack, said battery pack being connected to a first terminal of said charger, a second terminal of said charger being connected to a second terminal of said converter.

6. A fire emergency lighting circuit system as in claim 5 further comprising a diode in said energy storage and power supply unit, wherein said battery pack is connected to a first terminal of said diode, and wherein a second terminal of said diode is connected to a second terminal of said current transformer, said diode being adapted to block current flow from said main power source through said diode.

7. A fire emergency lighting circuit system as in claim 6 further comprising a shunt controller, a first end of the shunt controller connected to the second end of the converter, a second end of the shunt controller connected to the type a light fixture to shunt current from the main power supply.

8. A fire emergency lighting circuit system as in claim 7, further comprising an MCU, said MCU being connected to said relay, converter, charger, battery pack and shunt controller, respectively.

9. A fire emergency lighting circuit system as in claim 8, wherein said connection between said MCU and said relay, converter, charger, battery pack and shunt controller is a two bus.