CN113655749B - Fire power supply main and standby power switching control circuit - Google Patents
Fire power supply main and standby power switching control circuit Download PDFInfo
- Publication number
- CN113655749B CN113655749B CN202110985932.6A CN202110985932A CN113655749B CN 113655749 B CN113655749 B CN 113655749B CN 202110985932 A CN202110985932 A CN 202110985932A CN 113655749 B CN113655749 B CN 113655749B
- Authority
- CN
- China
- Prior art keywords
- resistor
- module
- capacitor
- triode
- diode
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Images
Classifications
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B19/00—Programme-control systems
- G05B19/02—Programme-control systems electric
- G05B19/04—Programme control other than numerical control, i.e. in sequence controllers or logic controllers
- G05B19/042—Programme control other than numerical control, i.e. in sequence controllers or logic controllers using digital processors
- G05B19/0423—Input/output
-
- G—PHYSICS
- G05—CONTROLLING; REGULATING
- G05B—CONTROL OR REGULATING SYSTEMS IN GENERAL; FUNCTIONAL ELEMENTS OF SUCH SYSTEMS; MONITORING OR TESTING ARRANGEMENTS FOR SUCH SYSTEMS OR ELEMENTS
- G05B2219/00—Program-control systems
- G05B2219/20—Pc systems
- G05B2219/24—Pc safety
- G05B2219/24215—Scada supervisory control and data acquisition
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02B—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO BUILDINGS, e.g. HOUSING, HOUSE APPLIANCES OR RELATED END-USER APPLICATIONS
- Y02B70/00—Technologies for an efficient end-user side electric power management and consumption
- Y02B70/30—Systems integrating technologies related to power network operation and communication or information technologies for improving the carbon footprint of the management of residential or tertiary loads, i.e. smart grids as climate change mitigation technology in the buildings sector, including also the last stages of power distribution and the control, monitoring or operating management systems at local level
-
- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y04—INFORMATION OR COMMUNICATION TECHNOLOGIES HAVING AN IMPACT ON OTHER TECHNOLOGY AREAS
- Y04S—SYSTEMS INTEGRATING TECHNOLOGIES RELATED TO POWER NETWORK OPERATION, COMMUNICATION OR INFORMATION TECHNOLOGIES FOR IMPROVING THE ELECTRICAL POWER GENERATION, TRANSMISSION, DISTRIBUTION, MANAGEMENT OR USAGE, i.e. SMART GRIDS
- Y04S20/00—Management or operation of end-user stationary applications or the last stages of power distribution; Controlling, monitoring or operating thereof
- Y04S20/20—End-user application control systems
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Engineering & Computer Science (AREA)
- Automation & Control Theory (AREA)
- Direct Current Feeding And Distribution (AREA)
Abstract
The invention discloses a main and standby power switching control circuit of a fire power supply, which solves the problem of low safety performance caused by power failure in the switching process of main power and standby power of the fire power supply in the prior art, and comprises a single-chip microcomputer control relay module, a power supply module, a main and standby power switching module and a mains supply control relay module, wherein the single-chip microcomputer control relay module comprises the single-chip microcomputer module and the control module, the power supply module comprises a system power supply module and a power supply module which are mutually connected, and the main and standby power switching module comprises a standby power-24V end and a main power 36V end. The invention realizes the switching of the main power and the standby power mainly through the control module, the main power switching module and the standby power switching module and the commercial power control relay module, controls the switching of the relay by using a commercial power detection method, simultaneously realizes the uninterrupted power supply of the main power and the standby power at the moment when the switching time, namely the power failure, occurs in the switching process of the relay, realizes the real uninterrupted power supply by seamless connection, and has important significance in the practical application of a fire power supply.
Description
Technical Field
The invention relates to the technical field of fire-fighting power supplies, in particular to a main/standby power switching control circuit of a fire-fighting power supply.
Background
The fire-fighting power supply has wide application in the aspects of fire prevention and fire alarm, when a fire breaks out, the controller can immediately send out fire alarm sound and light indication signals after receiving fire alarm signals sent out by the detector, precious time is won for timely putting out the fire and escaping people, and property loss and casualties can be greatly reduced. In the prior art, the relay tries to adopt an expensive optical coupling element as a main power switching element and a standby power switching element or adopt an expensive chip which is difficult to replace, the action is slow, the voltage drops, a compensation circuit needs to be additionally added, the size is large, the cost is high, and the maintenance is difficult. More importantly, the main and standby power supply switching process is powered off, so that the safety performance of the fire-fighting power supply is influenced due to the fact that a large defect exists in practical application, and meanwhile, the whole circuit is subjected to power on again after the power is turned off in a short time, so that potential safety hazards are easy to occur.
Disclosure of Invention
The invention aims to solve the problem of low safety performance caused by power failure in the switching process of the main power supply and the standby power supply of the fire-fighting power supply in the prior art, and provides a main power supply and standby power supply switching control circuit of the fire-fighting power supply.
In order to achieve the purpose, the invention adopts the following technical scheme:
the utility model provides a fire power supply owner is equipped with electricity and switches control circuit, including single chip microcomputer control relay module, the power module, owner is equipped with electricity and switches module and commercial power control relay module, single chip microcomputer control relay module includes single chip microcomputer module and control module, the power module includes interconnect's system power module and mains supply module, owner is equipped with electricity and switches module and is equipped with electricity-24V end and main 36V end, single chip microcomputer module respectively with control module, system power module, mains supply module, owner is equipped with electricity and switches module, be connected with commercial power control relay module, control module respectively with system power module, mains supply module, owner is equipped with electricity and switches module and commercial power control relay module and is connected, owner is equipped with electricity and switches module and is connected with commercial power control relay module.
The main and standby power switching is realized mainly through the control module, the main and standby power switching module and the commercial power control relay module, the relay switching is controlled by using a commercial power detection method, and meanwhile, the main and standby power supply is realized at the moment of power failure when the switching time of the relay switching process occurs, so that the main and standby power supply is not disconnected, the real uninterrupted power supply is realized by seamless connection, and the method has important significance in the practical application of a fire power supply.
Preferably, the main and standby power switching module comprises a diode D13, a diode D15, a diode D18, a diode D48, a resistor R111, a capacitor C20, a transistor VT8, a resistor R109, a transistor VT7, a resistor R110, a diode D17, a five-pin relay module RLY1, a diode D38, a diode D37, a resistor R41, a resistor R50, a transistor VT5, a capacitor C93 and a diode VT2;
the main power 36V end is defined as ZDOUT and is connected with the fourth pin of the five-pin relay RLY1, the fourth pin of the five-pin relay RLY1 is a normally closed end, and the fifth pin of the five-pin relay RLY1 is defined as BDOUT and is connected with a power supply module of a power supply;
the main power 36V end is connected with the anode of a diode D18, the cathode of the diode D18 is connected with the cathode of a diode D48, the cathode of the diode D48 is respectively connected with one end of a capacitor C20 and one end of a resistor R111, the other end of the resistor R111 is connected with the base electrode of a triode VT8, and the collector electrode of the triode VT8 is connected with one end of a resistor R110;
the other end of the resistor R110 is respectively connected with one end of the resistor R109 and the base electrode of the triode VT7, the emitting electrode of the triode VT7 is respectively connected with the other end of the resistor R109 and the cathode of the diode D15, the anode of the diode D15 is connected with the cathode of the diode D13, and the anode of the diode D13 is connected with the-24V end;
the collector electrode of the triode VT7 is connected with the anode of a diode D17, the cathode of the diode D17 is defined as DCOUT, the DCOUT is respectively connected with the cathode of a diode D38 and a system power supply module, the anode of the diode D38 is connected with a third pin of a five-pin relay module RLY1, the third pin of the five-pin relay module RLY1 is a public end, and the second pin of the five-pin relay module RLY1 is respectively connected with a BD _24V and the cathode of a diode D37;
a first pin of the five-pin relay module RLY1 is respectively connected with the anode of a diode D37 and the collector of a triode VT2, and the connecting point is defined as BT-K1;
the base electrode of the triode VT2 is respectively connected with one end of the capacitor C93, one end of the resistor R41 and the collector electrode of the triode VT5, and the base electrode of the triode VT5 is connected with one end of the resistor R50; the other end of the resistor R41 is defined as BT _ Kin _ off and is connected with the singlechip module; the other end of the resistor R50 is defined as AC-Off and is connected with the mains supply control relay module;
the other end of the capacitor C20, the emitter of the triode VT8, the emitter of the triode VT5, the other end of the capacitor C93 and the emitter of the triode VT2 are all grounded.
The main power 36V is DC direct current, input is reduced voltage through a diode D48 to charge a capacitor C20, when the ZDVOUT has no 36V, namely the main power is cut off, the capacitor C20 discharges a resistor R111, and proper parameters are selected through t = RC to ensure enough conduction time of a triode VT8, so that standby power-24V continues to supply power to a system, when the discharge is lower than a set value, the triode VT8 is cut off, the triode VT7 cuts off the standby power 24V, but at the moment, a relay is switched to the standby power.
Preferably, the five-pin relay module RLY1 is 024-1Z2T/24VDC in model number.
Preferably, the control module comprises a resistor R95, a resistor R105, a capacitor C94, a transistor VT17, a resistor R126, a resistor R135, a resistor R129, a resistor R118, a resistor R115, a resistor R132, a variable resistor BDW3, a transistor BQ6, and a capacitor C69;
one end of a resistor R95 is defined as BT _ Kin and is connected with the singlechip module, the other end of the resistor R95 is respectively connected with one end of a resistor R105, one end of a capacitor C94 and the base electrode of a triode VT17, and the collector electrode of the triode VT17 is connected with the main/standby power switching module;
one end of a resistor R135 is 3.3V and is connected with the singlechip module, the other end of the resistor R135 is connected with a base electrode of a triode BQ6, a collector electrode of the triode BQ6 is connected with one end of a resistor R129, the other end of the resistor R129 is respectively connected with one end of a resistor R126 and a base electrode of a triode BQ3, an emitting electrode of the triode BQ3 is defined as BDOUT, and an emitting electrode of the triode BQ3 is respectively connected with the other end of the resistor R126 and the main/standby power switching module;
the collector electrode of the triode BQ3 is connected with one end of a resistor R118, the other end of the resistor R118 is respectively connected with one end of a resistor R115 and one end of the fixed end of a variable resistor BDW3, the other end of a resistor R155 is defined as BTT3, the other end of the resistor R155 is respectively connected with one end of a capacitor C69 and the single chip microcomputer module, and the other end of the fixed end of the variable resistor BDW3 is respectively connected with the sliding end of the variable resistor BDW3 and one end of a resistor R132;
the emitter of the triode BQ6, the other end of the resistor R132 and the other end of the capacitor C69 are all grounded.
When the single chip microcomputer U11 detects that the mains voltage reaches a certain value, the single chip microcomputer controls the BT _ Kin to output 3.3V to enable the triode VT17 to be conducted, the relay is switched to standby power, meanwhile, the single chip microcomputer U11 samples BTT3 voltage, namely standby power voltage, and the single chip microcomputer outputs 0V of the pin after discharging to a certain voltage, so that the service life of the battery is guaranteed when the system is powered off. When the system is powered off, the triode BQ6 is cut off, and the BDOUT connected with the battery power supply module is that the battery cannot discharge the resistor, so that the battery is ensured not to consume power due to the system power off.
Preferably, the commercial power control relay module comprises a socket P10, a fuse F6, a resistor R38, a voltage transformer T1, a rectifier bridge U9, an electrolytic capacitor E1, a resistor R39, a resistor R37, a resistor RW3, a resistor R32 and a capacitor C26;
the hot line end of a socket P10 is connected with one end of a fuse F6, the other end of the fuse F6 is connected with one end of a resistor R38, the other end of the resistor R38 is connected with a first pin of a voltage transformer T1, a second pin of the voltage transformer T1 is connected with a second alternating current end of a rectifier bridge U9, the zero line end of the socket P10 is connected with a third pin of the voltage transformer T1, a fourth pin of the voltage transformer T1 is connected with a first alternating current end of the rectifier bridge U9, the forward output end of the rectifier bridge U9 is defined as AC-Off, and the forward output end of the rectifier bridge U9 is respectively connected with the anode of an electrolytic capacitor E1, one end of a resistor R39, one end of a resistor R37 and a main power switching module;
the other end of the resistor R37 is defined as ACT, the other end of the resistor R37 is respectively connected with one end of the fixed end of the variable resistor RW3, the sliding end of the variable resistor RW3 and one end of the capacitor C26, and the other end of the fixed end of the variable resistor RW3 is connected with one end of the resistor R32;
the negative output end of the rectifier bridge U9, the negative electrode of the electrolytic capacitor E1, the other end of the resistor R39, the other end of the resistor R32 and the other end of the capacitor C26 are all grounded.
By detecting the alternating voltage 220V of the mains supply and simultaneously sampling the corresponding voltage value of the ACT by the singlechip U11, the VT5 is controlled to be conducted by AC-off, the BT _ Kin _ off is output by the singlechip U11 to be 3.3V, when the mains supply is 220V, the triode VT2 is cut off, so that the relay is in a main power supply state, otherwise, when no mains supply is 220V, the triode VT2 is conducted, the relay is switched to a standby state, when the standby power is discharged to a termination voltage, the BT _ Kin _ off is output by the singlechip to be 0V, and the whole system is powered off.
Preferably, the model of the voltage transformer T1 is DL-PT202H1.
Preferably, the single chip microcomputer module comprises a single chip microcomputer U11, a capacitor C13, a capacitor R52, a capacitor C38, an inductor L2, a crystal oscillator B1, a resistor R80, a capacitor C54, a capacitor C55, a resistor R51, a resistor R68, a capacitor C52 and a capacitor C15;
the model of the singlechip U11 is STM32F103C8;
the PA1 end of the single chip microcomputer U11 is defined as ACT and is connected with the commercial power control relay module, the VSSA end of the single chip microcomputer U11 is connected with one end of a capacitor C38, and the other end of the capacitor C38 is respectively connected with the VDDA end of the single chip microcomputer U11 and one end of an inductor L2;
the PA3 end of the singlechip U11 is defined as BTT3 and is connected with the control module;
a voltage 3.3V at the VDD _1 end of the singlechip U11 is connected with the other end of the inductor L2, one end of the resistor R68 and one end of the capacitor C52, and an NRST end of the singlechip U11 is connected with the other end of the resistor R68;
the voltage of VDD _2 end of the singlechip U11 is 3.3V and is connected with one end of a capacitor C15; the voltage of VDD _3 end of the singlechip U11 is 3.3V and is connected with one end of a capacitor C13;
the BOOT0 end of the singlechip U11 is connected with one end of the resistor R52;
the PB2 end of the singlechip U11 is connected with one end of a resistor R51;
the PB5 end of the singlechip U11 is defined as BT _ Kin and is connected with the control module; the PB6 end of the singlechip U11 is defined as BT _ Kin _ off and is connected with the main/standby electric switching module;
the OSC _ IN end of the singlechip U11 is respectively connected with one end of the crystal oscillator B1, one end of the capacitor C55 and one end of the resistor R80, and the OSC _ OUT end of the singlechip U11 is respectively connected with the other end of the crystal oscillator B1 and one end of the capacitor C54.
Therefore, the invention has the following beneficial effects:
the invention controls the switching of the relay by using a method for detecting the commercial power, realizes the uninterrupted power supply of the main power and the standby power at the moment of switching time, namely power failure, in the switching process of the relay, realizes the real uninterrupted power supply by seamless connection, and has important significance in the practical application of the fire power supply.
Drawings
Fig. 1 is a block diagram of the structure of the present embodiment.
Fig. 2 is a schematic circuit diagram of the single-chip microcomputer module of the embodiment.
Fig. 3 is a schematic circuit diagram of the control module according to the present embodiment.
Fig. 4 is a schematic circuit diagram of a power supply module of the system of the present embodiment.
Fig. 5 is a schematic circuit diagram of the main/standby power switching module according to this embodiment.
Fig. 6 is a schematic circuit diagram of an embodiment mains relay module.
In the figure: 1. the system comprises a single-chip microcomputer control relay module 101, a single-chip microcomputer module 102, a control module 2, a power supply module 201, a system power supply module 202, a power supply module 3, a main and standby power switching module 4 and a commercial power control relay module.
Detailed Description
The invention is further described with reference to the following detailed description and accompanying drawings.
Example (b):
the embodiment provides a fire power supply main/standby electricity switching control circuit, as shown in fig. 1, which comprises a single-chip microcomputer control relay module 1, a power supply module 2, a main/standby electricity switching module 3 and a mains supply control relay module 4, and the purpose of the invention is mainly achieved through the main/standby electricity switching module 3, the mains supply control relay module and the single-chip microcomputer control relay module, wherein the power supply module adopts the internal power supply and power supply technology of the existing system.
The single chip microcomputer control relay module 1 comprises a single chip microcomputer module 101 and a control module 102, a power supply module 2 comprises a system power supply module 201 and a power supply module 202 which are connected with each other, a main standby power switching module 3 comprises a standby power-24V end and a main power 36V end, the single chip microcomputer module 101 is respectively connected with the control module 102, the system power supply module 201, the power supply module 202, the main standby power switching module 3 and a mains supply control relay module 4, the control module 102 is respectively connected with the system power supply module 201, the power supply module 202, the main standby power switching module 3 and the mains supply control relay module 4, and the main standby power switching module 3 is further connected with the mains supply control relay module 4.
As shown in fig. 2, the single chip microcomputer module includes a single chip microcomputer U11, a capacitor C13, a capacitor R52, a capacitor C38, an inductor L2, a crystal oscillator B1, a resistor R80, a capacitor C54, a capacitor C55, a resistor R51, a resistor R68, a capacitor C52, and a capacitor C15;
the model of the singlechip U11 is STM32F103C8;
the PA1 end of the single chip microcomputer U11 is defined as ACT and is connected with the commercial power control relay module, the VSSA end of the single chip microcomputer U11 is connected with one end of a capacitor C38, and the other end of the capacitor C38 is respectively connected with the VDDA end of the single chip microcomputer U11 and one end of an inductor L2;
the PA3 end of the singlechip U11 is defined as BTT3 and is connected with the control module;
a voltage 3.3V at the VDD _1 end of the singlechip U11 is connected with the other end of the inductor L2, one end of the resistor R68 and one end of the capacitor C52, and an NRST end of the singlechip U11 is connected with the other end of the resistor R68;
the voltage of VDD _2 end of the singlechip U11 is 3.3V and is connected with one end of a capacitor C15; the voltage of VDD _3 end of the singlechip U11 is 3.3V and is connected with one end of a capacitor C13;
the BOOT0 end of the singlechip U11 is connected with one end of the resistor R52;
the PB2 end of the singlechip U11 is connected with one end of a resistor R51;
the PB5 end of the singlechip U11 is defined as BT _ Kin and is connected with the control module; the PB6 end of the singlechip U11 is defined as BT _ Kin _ off and is connected with the main/standby electric switching module;
the OSC _ IN end of the singlechip U11 is respectively connected with one end of the crystal oscillator B1, one end of the capacitor C55 and one end of the resistor R80, and the OSC _ OUT end of the singlechip U11 is respectively connected with the other end of the crystal oscillator B1 and one end of the capacitor C54.
As shown in fig. 3, the control module includes a control module including a resistor R95, a resistor R105, a capacitor C94, a transistor VT17, a resistor R126, a resistor R135, a resistor R129, a resistor R118, a resistor R115, a resistor R132, a variable resistor BDW3, a transistor BQ6, and a capacitor C69;
one end of a resistor R95 is defined as BT _ Kin and is connected with the singlechip module, the other end of the resistor R95 is respectively connected with one end of a resistor R105, one end of a capacitor C94 and the base electrode of a triode VT17, and the collector electrode of the triode VT17 is connected with the main/standby power switching module;
one end of a resistor R135 is 3.3V and is connected with the singlechip module, the other end of the resistor R135 is connected with a base electrode of a triode BQ6, a collector electrode of the triode BQ6 is connected with one end of a resistor R129, the other end of the resistor R129 is respectively connected with one end of a resistor R126 and a base electrode of a triode BQ3, an emitting electrode of the triode BQ3 is defined as BDOUT, and an emitting electrode of the triode BQ3 is respectively connected with the other end of the resistor R126 and the main/standby power switching module;
the collector electrode of the triode BQ3 is connected with one end of a resistor R118, the other end of the resistor R118 is respectively connected with one end of a resistor R115 and one end of the fixed end of a variable resistor BDW3, the other end of a resistor R155 is defined as BTT3, the other end of the resistor R155 is respectively connected with one end of a capacitor C69 and the singlechip module, and the other end of the fixed end of the variable resistor BDW3 is respectively connected with the sliding end of the variable resistor BDW3 and one end of a resistor R132;
the emitter of the triode BQ6, the other end of the resistor R132 and the other end of the capacitor C69 are all grounded.
As shown in fig. 4, the system power supply module steps down the DC36V voltage to 3.3V to supply power to the whole system, and the system power supply module includes an electrolytic capacitor C88, a capacitor C86, a voltage-dropping chip U4, an inductor L4, a diode D33, a resistor R99, a capacitor C85, a resistor R100, a capacitor C87, a capacitor C5, a voltage-dropping chip U12, an inductor L1, a diode D1, an electrolytic capacitor C6, a capacitor C1, a voltage stabilizer U1, and an electrolytic capacitor C3;
the model of the voltage reduction chip U4 is XL4016, the model of the voltage reduction chip U12 is LM2596-5.0, and the model of the voltage stabilizer U1 is LT1117-3.3;
the DCOUT end is respectively connected with the anode of an electrolytic capacitor C88, one end of a capacitor C86, one end of a capacitor C84 and the input end of a voltage reduction chip U4, the VC end of the voltage reduction chip U4, the SW end of the voltage reduction chip U4 is respectively connected with one end of an inductor L4 and the cathode of a diode D33, the FB end of the voltage reduction chip U4 is respectively connected with one end of a capacitor R99, one end of a capacitor C85 and one end of a resistor R100, the other end of the inductor L4 is respectively connected with the other end of a resistor R99, the other end of a capacitor C85, one end of a capacitor C87, the anode of an electrolytic capacitor C89, one end of a capacitor C5 and the input end of a voltage reduction chip U12, the other end voltage of the inductor L4 is DC12V and is defined as VIN, the FB end of the voltage reduction chip U12 is respectively connected with one end of an inductor L1, the anode of an electrolytic capacitor C6, one end of a capacitor C1 and the input end of a voltage stabilizer U1, the input end of the voltage stabilizer U1, the output end of the voltage stabilizer U12 is connected with the cathode of the diode D1, the output end of the single chip is connected with the anode of the electrolytic capacitor C3.3V, the voltage stabilizer U1, and the voltage stabilizer U11 is supplied power supply is supplied by a single chip microcomputer.
The battery power supply module adopts a 36V battery for power supply and is connected with a fifth pin of the five-pin relay module RLY 1.
As shown in fig. 5, the active/standby power switching module includes a diode D13, a diode D15, a diode D18, a diode D48, a resistor R111, a capacitor C20, a transistor VT8, a resistor R109, a transistor VT7, a resistor R110, a diode D17, a five-pin relay module RLY1, a diode D38, a diode D37, a resistor R41, a resistor R50, a transistor VT5, a capacitor C93, and a diode VT2;
the main power 36V end is defined as ZDOUT and is connected with the fourth pin of the five-pin relay RLY1, the fourth pin of the five-pin relay RLY1 is a normally closed end, and the fifth pin of the five-pin relay RLY1 is defined as BDOUT and is connected with a power supply module of a power supply;
the main power 36V end is connected with the anode of a diode D18, the cathode of the diode D18 is connected with the cathode of a diode D48, the cathode of the diode D48 is respectively connected with one end of a capacitor C20 and one end of a resistor R111, the other end of the resistor R111 is connected with the base electrode of a triode VT8, and the collector electrode of the triode VT8 is connected with one end of a resistor R110;
the other end of the resistor R110 is respectively connected with one end of the resistor R109 and the base electrode of the triode VT7, the emitting electrode of the triode VT7 is respectively connected with the other end of the resistor R109 and the cathode of the diode D15, the anode of the diode D15 is connected with the cathode of the diode D13, and the anode of the diode D13 is connected with the-24V end;
the collector of the triode VT7 is connected with the anode of a diode D17, the cathode of the diode D17 is defined as DCOUT, the DCOUT is respectively connected with the cathode of a diode D38 and a system power supply module, the anode of the diode D38 is connected with a third pin of a five-pin relay module RLY1, the third pin of the five-pin relay module RLY1 is a public end, and the second pin of the five-pin relay module RLY1 is respectively connected with a BD _24V and the cathode of a diode D37;
a first pin of the five-pin relay module RLY1 is respectively connected with the anode of a diode D37 and the collector of a triode VT2, and the connection point is defined as BT-K1;
the base electrode of the triode VT2 is respectively connected with one end of the capacitor C93, one end of the resistor R41 and the collector electrode of the triode VT5, and the base electrode of the triode VT5 is connected with one end of the resistor R50; the other end of the resistor R41 is defined as BT _ Kin _ off and is connected with the singlechip module; the other end of the resistor R50 is defined as AC-Off and is connected with the mains supply control relay module;
the other end of the capacitor C20, the emitter of the triode VT8, the emitter of the triode VT5, the other end of the capacitor C93 and the emitter of the triode VT2 are all grounded.
The model number of the five-pin relay module RLY1 is 024-1Z2T/24VDC.
As shown in fig. 6, the utility power control relay module includes a socket P10, a fuse F6, a resistor R38, a voltage transformer T1, a rectifier bridge U9, an electrolytic capacitor E1, a resistor R39, a resistor R37, a resistor RW3, a resistor R32, and a capacitor C26;
the hot line end of a socket P10 is connected with one end of a fuse F6, the other end of the fuse F6 is connected with one end of a resistor R38, the other end of the resistor R38 is connected with a first pin of a voltage transformer T1, a second pin of the voltage transformer T1 is connected with a second alternating current end of a rectifier bridge U9, the zero line end of the socket P10 is connected with a third pin of the voltage transformer T1, a fourth pin of the voltage transformer T1 is connected with a first alternating current end of the rectifier bridge U9, the forward output end of the rectifier bridge U9 is defined as AC-Off, and the forward output end of the rectifier bridge U9 is respectively connected with the anode of an electrolytic capacitor E1, one end of a resistor R39, one end of a resistor R37 and a main power switching module;
the other end of the resistor R37 is defined as ACT, the other end of the resistor R37 is respectively connected with one end of the fixed end of the variable resistor RW3, the sliding end of the variable resistor RW3 and one end of the capacitor C26, and the other end of the fixed end of the variable resistor RW3 is connected with one end of the resistor R32;
the negative output end of the rectifier bridge U9, the negative electrode of the electrolytic capacitor E1, the other end of the resistor R39, the other end of the resistor R32 and the other end of the capacitor C26 are all grounded.
The model of the voltage transformer T1 is DL-PT202H1.
The working principle of the embodiment is as follows: the method for detecting the commercial power is utilized to control the switching of the relay, and meanwhile, the uninterrupted power supply of the main power supply and the standby power supply is realized at the moment of the switching time of the relay switching process, namely the power failure, and the actual uninterrupted power supply is realized by seamless connection.
The specific implementation mode is as follows: the main power 36V is DC direct current, input is reduced voltage through a diode D48 to charge a capacitor C20, when the ZDVOUT has no 36V, namely the main power is cut off, the capacitor C20 discharges a resistor R111, and proper parameters are selected through t = RC to ensure enough conduction time of a triode VT8, so that standby power-24V continues to supply power to a system, when the discharge is lower than a set value, the triode VT8 is cut off, the triode VT7 cuts off the standby power 24V, but at the moment, a relay is switched to the standby power.
The invention additionally arranges a mode of resistance-capacitance discharge and triode conduction to realize uninterrupted power supply.
By detecting the alternating voltage 220V of the mains supply, the single chip microcomputer U11 samples the corresponding voltage value of ACT, the VT5 is controlled to be conducted by AC-off, the BT _ Kin _ off is output by the single chip microcomputer U11 to be 3.3V, when the mains supply is 220V, the triode VT2 is cut off, so that the relay is in a main power supply state, on the contrary, when no mains supply is available, the triode VT2 is conducted, the relay is switched to a standby state, and when the standby power is discharged to the termination voltage, the BT _ Kin _ off is output by the single chip microcomputer to be 0V, so that the whole system is powered off.
When the singlechip U11 detects that the mains voltage reaches a set value, the singlechip controls the BT _ Kin to output 3.3V to enable the triode VT17 to be conducted, so that the relay is switched to standby power, meanwhile, the singlechip U11 samples BTT3 voltage, namely standby power voltage, and the singlechip outputs 0V of the pin after discharging to a certain voltage, so that the service life of the battery is ensured. When the system is powered off, the triode BQ6 is cut off, and BDOUT connected with the battery power supply module is that the battery cannot discharge the resistor, so that the battery is ensured not to consume power due to the system power off.
The above embodiments are described in detail for the purpose of further illustrating the present invention and should not be construed as limiting the scope of the present invention, and the skilled engineer can make insubstantial modifications and variations of the present invention based on the above disclosure.
Claims (4)
1. A fire-fighting power supply main and standby electricity switching control circuit is characterized by comprising a single chip microcomputer control relay module (1), a power supply module (2), a main and standby electricity switching module (3) and a mains supply control relay module (4), wherein the single chip microcomputer control relay module (1) comprises a single chip microcomputer module (101) and a control module (102), the power supply module (2) comprises a system power supply module (201) and a power supply module (202) which are connected with each other, the main and standby electricity switching module (3) comprises a standby electricity-24V end and a main electricity 36V end, the single chip microcomputer module (101) is respectively connected with the control module (102), the system power supply module (201), the power supply module (202), the main and standby electricity switching module (3) and the mains supply control relay module (4), the control module (102) is respectively connected with the system power supply module (201), the power supply module (202), the main and standby electricity switching module (3) and the mains supply control relay module (4), and the electricity switching module (3) is also connected with the mains supply control relay module (4);
the main and standby power switching module (3) comprises a diode D13, a diode D15, a diode D18, a diode D48, a resistor R111, a capacitor C20, a triode VT8, a resistor R109, a triode VT7, a resistor R110, a diode D17, a five-pin relay module RLY1, a diode D38, a diode D37, a resistor R41, a resistor R50, a triode VT5, a capacitor C93 and a diode VT2;
the main power 36V end is defined as ZDOUT and is connected with a fourth pin of a five-pin relay RLY1, the fourth pin of the five-pin relay RLY1 is a normally closed end, and the fifth pin of the five-pin relay RLY1 is defined as BDOUT and is connected with a power supply module (202);
the main power 36V end is connected with the anode of a diode D18, the cathode of the diode D18 is connected with the cathode of a diode D48, the cathode of the diode D48 is respectively connected with one end of a capacitor C20 and one end of a resistor R111, the other end of the resistor R111 is connected with the base electrode of a triode VT8, and the collector electrode of the triode VT8 is connected with one end of a resistor R110;
the other end of the resistor R110 is respectively connected with one end of the resistor R109 and the base electrode of the triode VT7, the emitting electrode of the triode VT7 is respectively connected with the other end of the resistor R109 and the cathode of the diode D15, the anode of the diode D15 is connected with the cathode of the diode D13, and the anode of the diode D13 is connected with the-24V end;
the collector electrode of the triode VT7 is connected with the anode of a diode D17, the cathode of the diode D17 is defined as DCOUT, the DCOUT is respectively connected with the cathode of a diode D38 and a system power supply module (201), the anode of the diode D38 is connected with a third pin of a five-pin relay module RLY1, the third pin of the five-pin relay module RLY1 is a common end, and a second pin of the five-pin relay module RLY1 is respectively connected with a BD _24V and the cathode of a diode D37;
a first pin of the five-pin relay module RLY1 is respectively connected with the anode of a diode D37 and the collector of a triode VT2, and the connecting point is defined as BT-K1;
the base electrode of the triode VT2 is respectively connected with one end of the capacitor C93, one end of the resistor R41 and the collector electrode of the triode VT5, and the base electrode of the triode VT5 is connected with one end of the resistor R50; the other end of the resistor R41 is defined as BT _ Kin _ off and is connected with the singlechip module (101); the other end of the resistor R50 is defined as AC-Off and is connected with the mains supply control relay module (4);
the other end of the capacitor C20, the emitter of the triode VT8, the emitter of the triode VT5, the other end of the capacitor C93 and the emitter of the triode VT2 are all grounded;
the main power 36V is DC direct current, the input is reduced by a diode D48 to charge a capacitor C20, when the ZDOUT has no 36V, namely the main power is cut off, the capacitor C20 discharges a resistor R111, when the discharge is lower than a set value, a triode VT8 is cut off, and a triode VT7 cuts off the standby power by 24V;
the control module (102) comprises a resistor R95, a resistor R105, a capacitor C94, a triode VT17, a resistor R126, a resistor R135, a resistor R129, a resistor R118, a resistor R115, a resistor R132, a variable resistor BDW3, a triode BQ6 and a capacitor C69;
one end of a resistor R95 is defined as BT _ Kin and is connected with the singlechip module (101), the other end of the resistor R95 is respectively connected with one end of a resistor R105, one end of a capacitor C94 and the base electrode of a triode VT17, and the collector electrode of the triode VT17 is connected with the main/standby power switching module (3);
one end of a resistor R135 is 3.3V and is connected with the single chip microcomputer module (101), the other end of the resistor R135 is connected with a base electrode of a triode BQ6, a collector electrode of the triode BQ6 is connected with one end of a resistor R129, the other end of the resistor R129 is respectively connected with one end of a resistor R126 and the base electrode of a triode BQ3, an emitting electrode of the triode BQ3 is defined as BDOUT, and an emitting electrode of the triode BQ3 is respectively connected with the other end of the resistor R126 and the main/standby power switching module (3);
the collector electrode of the triode BQ3 is connected with one end of a resistor R118, the other end of the resistor R118 is respectively connected with one end of a resistor R115 and one end of the fixed end of a variable resistor BDW3, the other end of a resistor R155 is defined as BTT3, the other end of the resistor R155 is respectively connected with one end of a capacitor C69 and one end of a singlechip module (101), and the other end of the fixed end of the variable resistor BDW3 is respectively connected with the sliding end of the variable resistor BDW3 and one end of a resistor R132;
the emitter of the triode BQ6, the other end of the resistor R132 and the other end of the capacitor C69 are all grounded;
the commercial power control relay module (4) comprises a socket P10, a fuse F6, a resistor R38, a voltage transformer T1, a rectifier bridge U9, an electrolytic capacitor E1, a resistor R39, a resistor R37, a resistor RW3, a resistor R32 and a capacitor C26;
the hot line end of a socket P10 is connected with one end of a fuse F6, the other end of the fuse F6 is connected with one end of a resistor R38, the other end of the resistor R38 is connected with a first pin of a voltage transformer T1, a second pin of the voltage transformer T1 is connected with a second alternating current end of a rectifier bridge U9, the zero line end of the socket P10 is connected with a third pin of the voltage transformer T1, a fourth pin of the voltage transformer T1 is connected with a first alternating current end of the rectifier bridge U9, the positive output end of the rectifier bridge U9 is defined as AC-Off, and the positive output end of the rectifier bridge U9 is respectively connected with the positive electrode of an electrolytic capacitor E1, one end of a resistor R39, one end of a resistor R37 and a main power switching module (3);
the other end of the resistor R37 is defined as ACT, the other end of the resistor R37 is respectively connected with one end of the fixed end of the variable resistor RW3, the sliding end of the variable resistor RW3 and one end of the capacitor C26, and the other end of the fixed end of the variable resistor RW3 is connected with one end of the resistor R32;
the negative output end of the rectifier bridge U9, the negative electrode of the electrolytic capacitor E1, the other end of the resistor R39, the other end of the resistor R32 and the other end of the capacitor C26 are all grounded.
2. The fire-fighting power supply main and standby power switching control circuit as claimed in claim 1, wherein the five-pin relay module RLY1 is 024-1Z2T/24VDC in type.
3. The fire power supply main and standby power switching control circuit as claimed in claim 1, wherein the voltage transformer T1 is of the type DL-PT202H1.
4. The fire-fighting power supply main and standby power switching control circuit according to claim 1 or 2, wherein the single chip microcomputer module (101) comprises a single chip microcomputer U11, a capacitor C13, a capacitor R52, a capacitor C38, an inductor L2, a crystal oscillator B1, a resistor R80, a capacitor C54, a capacitor C55, a resistor R51, a resistor R68, a capacitor C52 and a capacitor C15;
the model of the singlechip U11 is STM32F103C8;
the PA1 end of the single chip microcomputer U11 is defined as ACT and is connected with the commercial power control relay module (4), the VSSA end of the single chip microcomputer U11 is connected with one end of a capacitor C38, and the other end of the capacitor C38 is respectively connected with the VDDA end of the single chip microcomputer U11 and one end of an inductor L2;
the PA3 end of the singlechip U11 is defined as BTT3 and is connected with the control module (102);
a voltage 3.3V at the VDD _1 end of the singlechip U11 is connected with the other end of the inductor L2, one end of the resistor R68 and one end of the capacitor C52, and an NRST end of the singlechip U11 is connected with the other end of the resistor R68;
the voltage of VDD _2 end of the singlechip U11 is 3.3V and is connected with one end of a capacitor C15; the voltage of VDD _3 end of the singlechip U11 is 3.3V and is connected with one end of a capacitor C13;
the BOOT0 end of the single chip microcomputer U11 is connected with one end of the resistor R52;
the PB2 end of the singlechip U11 is connected with one end of a resistor R51;
the PB5 end of the singlechip U11 is defined as BT _ Kin and is connected with the control module (102); the PB6 end of the singlechip U11 is defined as BT _ Kin _ off and is connected with the main/standby power switching module (3);
the OSC _ IN end of the singlechip U11 is respectively connected with one end of the crystal oscillator B1, one end of the capacitor C55 and one end of the resistor R80, and the OSC _ OUT end of the singlechip U11 is respectively connected with the other end of the crystal oscillator B1 and one end of the capacitor C54.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110985932.6A CN113655749B (en) | 2021-08-26 | 2021-08-26 | Fire power supply main and standby power switching control circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202110985932.6A CN113655749B (en) | 2021-08-26 | 2021-08-26 | Fire power supply main and standby power switching control circuit |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN113655749A CN113655749A (en) | 2021-11-16 |
| CN113655749B true CN113655749B (en) | 2023-03-28 |
Family
ID=78482081
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202110985932.6A Active CN113655749B (en) | 2021-08-26 | 2021-08-26 | Fire power supply main and standby power switching control circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN113655749B (en) |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001037235A (en) * | 1999-07-23 | 2001-02-09 | Toshiba Corp | Stand-by power supply equipment |
| CN206057925U (en) * | 2016-08-29 | 2017-03-29 | 郑州金特莱电子有限公司 | Fire-fighting equipment power supply status monitoring system |
| CN107658970A (en) * | 2017-11-08 | 2018-02-02 | 柏宜照明（上海）股份有限公司 | A kind of relay protection circuit for fire-fighting equipment power supply |
| CN112003366A (en) * | 2020-08-22 | 2020-11-27 | 江苏瑞墨建筑科技有限公司 | Quick maintenance system of fire control linkage power |
| CN212936414U (en) * | 2020-10-10 | 2021-04-09 | 福州金笛声电子科技有限公司 | Fire-fighting motor control box with inverter circuit and battery repair function |
Family Cites Families (9)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2000184621A (en) * | 1998-12-16 | 2000-06-30 | Hochiki Corp | Device for changing over power sources |
| CN105208716A (en) * | 2015-08-09 | 2015-12-30 | 宁波飞拓电器有限公司 | Intelligent fire-fighting illuminating lamp |
| CN105375615A (en) * | 2015-11-20 | 2016-03-02 | 苏州太阳都信息科技有限公司 | Fire-fighting host computer comprehensive power supply system equipped with main and standby power detecting circuit |
| CN105788150A (en) * | 2016-05-20 | 2016-07-20 | 湖南奥科网络技术股份有限公司 | Fire-fighting safety system based on internet |
| CN107656476A (en) * | 2017-10-17 | 2018-02-02 | 安徽新兴电子科技有限公司 | A kind of electric energy acquisition device power supply (DPS) automatic switching device control circuit |
| CN107834695B (en) * | 2017-11-08 | 2024-05-17 | 柏宜照明（上海）股份有限公司 | Fire-fighting equipment power supply with relay protection circuit |
| CN212114884U (en) * | 2020-06-22 | 2020-12-08 | 江苏谊和电子有限公司 | Main/standby power switching circuit for fire-fighting emergency main machine power supply |
| CN213151935U (en) * | 2020-10-10 | 2021-05-07 | 福州金笛声电子科技有限公司 | Fire-fighting motor control device with switching power supply and battery repairing functions |
| CN111969715B (en) * | 2020-10-21 | 2021-02-12 | 深圳市超力源科技有限公司 | Main and standby power supply seamless switching circuit and method of fire-fighting broadcast system |
-
2021
- 2021-08-26 CN CN202110985932.6A patent/CN113655749B/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP2001037235A (en) * | 1999-07-23 | 2001-02-09 | Toshiba Corp | Stand-by power supply equipment |
| CN206057925U (en) * | 2016-08-29 | 2017-03-29 | 郑州金特莱电子有限公司 | Fire-fighting equipment power supply status monitoring system |
| CN107658970A (en) * | 2017-11-08 | 2018-02-02 | 柏宜照明（上海）股份有限公司 | A kind of relay protection circuit for fire-fighting equipment power supply |
| CN112003366A (en) * | 2020-08-22 | 2020-11-27 | 江苏瑞墨建筑科技有限公司 | Quick maintenance system of fire control linkage power |
| CN212936414U (en) * | 2020-10-10 | 2021-04-09 | 福州金笛声电子科技有限公司 | Fire-fighting motor control box with inverter circuit and battery repair function |
Also Published As
| Publication number | Publication date |
|---|---|
| CN113655749A (en) | 2021-11-16 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN203537047U (en) | Uninterrupted power source system capable of conducting intelligent double-input power supply | |
| CN201868944U (en) | Uninterrupted power system | |
| CN202679060U (en) | Uninterrupted power source management system of seabed observation network | |
| CN208707382U (en) | A kind of online zero switching bidirectional energy-storage system | |
| CN202218458U (en) | Emergency power source for LED light and fluorescent light | |
| CN201274001Y (en) | Standby energy-saving apparatus for electric appliance | |
| CN113655749B (en) | Fire power supply main and standby power switching control circuit | |
| CN206193157U (en) | Fault indicator and distribution lines fault location system suitable for low temperature environment | |
| CN103973101B (en) | A kind of DC-DC power source adapter | |
| CN105244998A (en) | Emergency power supply (EPS) having modular structure | |
| CN205195414U (en) | Network GNSS receiver electrical power generating system | |
| CN203407043U (en) | Power supply device of intelligent LED emergency lamp | |
| CN104600751A (en) | New-energy power generator grid-connection system | |
| CN205610332U (en) | Electrical apparatus automatic switch conversion equipment | |
| CN104597889A (en) | Unattended communication base station diesel oil power generation low-oil monitoring system | |
| CN209016785U (en) | A kind of charging pile stand-by power supply circuit | |
| CN202872443U (en) | Fuel-cell-based communication power supply | |
| CN203025639U (en) | Micro server and power supply system thereof | |
| CN205004828U (en) | Substation supervision system based on photovoltaic energy storage automatic switch -over | |
| CN204442004U (en) | Direct current sectionalized bus device for intelligently switching | |
| CN204681150U (en) | A kind of light bavin storage intelligent wireless communication base station electric power supply control system | |
| CN208026820U (en) | A kind of fault detection circuit of photovoltaic DC-to-AC converter collecting device | |
| CN216436797U (en) | Double-loop intelligent power saving device | |
| CN105337403A (en) | Network GNSS receiver power source system and control method thereof | |
| CN205160192U (en) | Modular structure EPS emergency power source |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| GR01 | Patent grant | ||
| GR01 | Patent grant |