CN201805219U - Storage battery protector provided with time control function - Google Patents
Storage battery protector provided with time control function Download PDFInfo
- Publication number
- CN201805219U CN201805219U CN2010201841800U CN201020184180U CN201805219U CN 201805219 U CN201805219 U CN 201805219U CN 2010201841800 U CN2010201841800 U CN 2010201841800U CN 201020184180 U CN201020184180 U CN 201020184180U CN 201805219 U CN201805219 U CN 201805219U
- Authority
- CN
- China
- Prior art keywords
- circuit
- pin
- diode
- power supply
- voltage
- 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.)
- Expired - Fee Related
Links
Images
Landscapes
- Charge And Discharge Circuits For Batteries Or The Like (AREA)
Abstract
The utility model relates to a storage battery protector provided with the time control function and capable of preventing the excessive discharge of a lead-acid battery, limiting the power-on time and saving energy source. The storage battery protector comprises a switch power supply circuit, a CPU (Central Processing Unit) processing circuit, a clock circuit, a communication circuit, a voltage sampling circuit and a relay circuit, wherein a power supply is connected with an anti-opposite insertion diode through an input socket, the anti-opposite insertion diode is connected with the voltage sampling circuit, the relay circuit and the switch power supply circuit, the voltage sampling circuit is connected with the CPU processing circuit, the relay circuit, the clock circuit and the communication circuit, the clock circuit is connected with the CPU processing circuit, the communication circuit is connected with the CPU processing circuit, a CPU exchanges data with an upper computer through the communication circuit, the communication circuit is connected with a communication socket, the relay circuit is connected with the diode, and the diode is connected with an output socket. The utility model has the advantages that the storage battery is protected, the service life of the storage battery is prolonged, the electrical energy is saved, and the system operation is stable.
Description
Technical field
The utility model relates to and a kind ofly prevents the lead-acid battery over-discharge can, and power-on time is limited, to save the storage battery protector that possesses time control function of the energy.
Background technology
At people's daily production and some special occasions in the life, such as traffic lights, field work, advertising lamp box etc., alternating current can't guarantee 24 hours power supply owing to the reason that is subjected to environment or time, therefore, must use DC power-supply system, perhaps the supplied by AC/DC electricity system is used alternatingly.In DC power-supply system, core component is a battery, wherein is widely used owing to lead-acid battery possesses following characteristics: cheap (ickel-cadmium cell 1/5th) possesses good high-rate discharge ability, not memory of lead acid accumulator simultaneously, it has Memorability unlike lithium battery.Do not worry that the several leading electricity that time is not fully filled can cause that the back is nonvolatil to be not fully filled.But lead-acid battery is in case owing to after over-discharge can causes capacity to descend rapidly, will cause nonvolatil injury to battery.The main cause that causes battery capacity to reduce fast is storage battery vulcanization and " dehydration ", " power shortage " etc., what storage battery was afraid of most is exactly that " power shortage " is under-voltage, storage battery normal " power shortage ", plate electrode of battery is easily injured, survey data show to find to have that to reduce up to 70% capacity of lead acid battery be because due to the heavy current (starting current) of battery lead plate when being discharged pull, battery lead plate is pulled and is belonged to the battery physical damnification, and this damage can't be repaired.Therefore, it is inevitable to guarantee that storage battery has sufficient voltage just to become at any time.
At the lead-acid battery over-discharge can, consider simultaneously in some application scenario, do not need work in 24 hours such as some unattended operation equipment, must limit power-on time, to save the energy.
Summary of the invention
The purpose of this utility model is to overcome the deficiencies in the prior art and a kind of storage battery protector that possesses time control function that can prolong storage battery useful life, save electric energy is provided.
The purpose of this utility model is achieved in that and comprises switching power circuit, the CPU treatment circuit, clock circuit, communicating circuit, voltage sampling circuit, relay circuit, it is characterized in that: the input power supply is connected with anti-anti-inserted diode by input socket, anti-anti-inserted diode and voltage sampling circuit, relay circuit is connected with switching power circuit, the output of voltage sampling circuit is connected with cpu circuit, carry out signal processing and judgement for cpu circuit, the DC12V power supply of switching power circuit output is connected with relay circuit, provide power supply to relay circuit, the DC5V power supply and the cpu circuit of switching power circuit output, clock circuit is connected with communicating circuit, and be cpu circuit, clock circuit and communicating circuit provide the working power of DC5V, clock circuit is connected with cpu circuit, realize the exchanges data between clock circuit and the cpu circuit, communicating circuit is connected with cpu circuit, CPU carries out exchanges data by communicating circuit and host computer, the output of communicating circuit is connected with socket communication, the output of relay circuit is connected with diode, and diode is connected with accessory power outlet.
In switching power circuit, positive source is connected with diode D1 by 2 pin of terminal J1, D1 is the diode that prevents the power supply reversal connection, 1 pin of J1 is the 0V of input power supply, the other end of diode D1 is connected with 4 pin of relay J DQ1, be connected with diode D8 simultaneously, the other end of diode D8 is connected with electrochemical capacitor C2, C2 is charged, simultaneously with capacitor C 3,1 pin of transition diode DW and high frequency transformer B connects, the other end of C2 is connected on the 0V of input power supply, capacitor C 3, the other end of transition diode DW is connected with diode D5,5 of 2 pin of the other end of D5 and high frequency transformer B and Switching Power Supply integrated circuit U1,6,7,8 pin connect, by 5 of control switching integrated circuit U1,6,7, the break-make of 8 pin, convert the direct voltage at electrochemical capacitor C2 two ends to high frequency ac signal, be input to 1 pin and 2 pin of high frequency transformer B, photoelectrical coupler U2 is by A, B two parts are formed, 4 pin of high frequency transformer B are connected with diode D6, the other end of diode D6 and electrochemical capacitor C5,4 pin of Switching Power Supply integrated circuit U1,4 pin of photoelectrical coupler U2B connect, working power is provided for Switching Power Supply integrated circuit U1, on the other end of electrochemical capacitor C5 and the 0V that receives the input power supply after the end of electric capacity of the dacron C4 is connected, the other end of capacitor C 4 with receive on 3 pin of element switch power IC U1 after 3 pin of element U2B are connected, 1 of Switching Power Supply integrated circuit U1,2 pin are connected on the 0V of input power supply, ceramic disc capacitor C81 one end is connected with 0V, the other end is connected with the end of C82, the other end of C82 is connected with the 0V of output, 5 pin of high frequency transformer B are connected with diode D7, the high frequency ac signal that transformer is come out is rectified into direct current signal, the other end of D7 and electrolytic capacitor filter C7, filter inductance L2, resistance R 2 is connected with R3, the other end of electrolytic capacitor filter C7 is received the 0V of power supply, the other end of resistance R 2 is connected with 1 pin of photoelectrical coupler U2A, 2 pin of photoelectrical coupler U2A are connected with the other end of resistance R 3 simultaneously and link to each other with capacitor C 8 with the K end of reference voltage integrated circuit U3, after linking to each other with the other end of capacitor C 8, the V end of reference voltage integrated circuit U3 links to each other with resistance R 4, constitute voltage comparator circuit, the A of reference voltage integrated circuit U3 terminates to the 0V of power supply, the other end of filter inductance L2 and resistance R 5, electrochemical capacitor C9 goes 1 pin of lotus root capacitor C 6 three terminal regulators to connect, resistance R 4, R5 is the height of control output voltage, the reference voltage DC2.5V that voltage at resistance R 4 two ends provides for reference voltage integrated circuit U3, element U204 is general three terminal regulator, is output as DC5V.
In clock circuit, adopt between clock chip and the CPU and carry out exchanges data, thereby finish time control function, in clock circuit, adopt the high precision clock chip DS1302 of MAXIM company, 5 of clock chip U5,6,7 pin respectively with pull-up resistor R8, R7, R6 connects, and with 25 of the single-chip microcomputer U4 of 68HC908JL8ECDW model, 26,27 pin connect the time of reading clock chip DS1302, judge the switching on and shutting down time, resistance R 6, R7, R8 is connected to+5V on, reserve battery B1 is connected with 8 pin of clock chip U5, the other end of reserve battery B1 is received on the 0V of power supply, back-up source during as power failure, guaranteed the normal timing of clock under power-off condition, crystal oscillator J2 is connected with crystal oscillator matching capacitance C11 with 2 pin of clock chip U5, the other end of C11 is received on the 0V of power supply, and the other end of crystal oscillator J2 is connected with crystal oscillator matching capacitance C12, and the other end of crystal oscillator matching capacitance C12 is connected on the 0V of power supply.
Employing has the single-chip microcomputer of AD function, by with the exchanges data of clock circuit, realize the function of time control; By the voltage in the voltage collection circuit being carried out the AD conversion, input supply voltage is realized the low-voltage variation function, in the CPU treatment circuit, U4 is a single-chip microcomputer, adopt high performance 8 the single-chip microcomputer 68HC908JL8ECDW of MOTOROLA, single-chip microcomputer U4 pin two 7,26,25 respectively with clock chip U5 5,6,7 pin connect, by to after the reading of clock chip U5, judge switch and time, the resistance R 12 of single-chip microcomputer U4 pin two 1 and relay circuit, R13 connects, come the opening and closing of control relay circuit, simultaneously by behind the voltage signal ADV real-time sampling to input, by converting, judge whether current battery voltage is lower than the low pressure definite value, if be lower than the low pressure definite value,, thereby cut off the load of storage battery by single-chip microcomputer U4 pin block system relay circuit.
In relay circuit, load is connected on the terminal J4, element D2 is anti-reverse diode, resistance R 12, resistance R 13 are connected with the pin two 1 of single-chip microcomputer U4, another termination power 0V of resistance R 12, resistance R 13 is connected with the base stage of triode Q1, the collector electrode of triode Q1 is connected with 1 pin of relay J DQ1A, the emitter of triode Q1 meets power supply 0V, diode D4 is in parallel with 1 pin and 2 pin of relay, high-frequency signal when absorbing relay on-off, energising and outage that single-chip microcomputer U4 comes the control relay coil by the high level and the low level of control CTR1 signal.
Adopt the single-chip microcomputer of band serial communication interface, by and communicating circuit between exchanges data realize communication with host computer, in communicating circuit, 1 of 485 communication chip U6,2,13 of 4 pin and single-chip microcomputer U4,16,14 pin connect, 2 of 485 communication chip U6,3 pin connect, as 2 of 485 communication chip U6, when 3 pin are low level, 485 communication chip U6 are in accepting state, as 2 of 485 communication chip U6, when 3 pin are high level, 485 communication chip U6 are in transmit status, 5 pin of 485 communication chip U6 meet the 0V of power supply, 485 communication chips, 8 pin connect+5V, 7 pin of 485 communication chip U6 and resistance R 15, R17, transition diode T2, transition diode T3 connects, 6 pin of 485 communication chip U6 and resistance R 16 and R17, transition diode T1, the transition diode T2 other end connects, the other end of R16 is received+5V, the other end of transition diode T1 is received on the 0V of power supply, the other end of transition diode T3 is received on the 0V of power supply, 1 pin of terminal J3 is connected to+5V on, 4 pin of terminal J3 are connected on the 0V of power supply, 2 pin of terminal J3 are connected with resistance R 17,3 pin of terminal J3 link to each other with the other end of R17, transition diode T1, T2, T3S adopts the high speed transient diode.
Gather the supply voltage of input; carry out in the cpu circuit carrying out the voltage judgement after the AD conversion through delivering to after electric resistance partial pressure and the signal processing; when voltage is lower than definite value; cut off out-put supply; thereby realize the function of protection storage battery; in voltage collection circuit; input voltage signal IN; R18 is connected with divider resistance; the other end of R18 is connected with R19, and the other end of R19 is connected with filter capacitor C13 with resistance R 20, receives on the 0V of power supply after the other end parallel connection of resistance R 20 and filter capacitor C13; 15 pin of single-chip microcomputer U4 carry out the AD conversion in voltage signal ADV and the cpu circuit, input voltage are carried out the judgement of digital-to-analogue conversion for single-chip microcomputer.
The utility model adopts MOTOROLA high-performance single-chip microcomputer; pass through voltage acquisition circuit; monitor the voltage of storage battery in real time; when battery voltage continues to be lower than the low pressure definite value of setting 2 seconds; the low-voltage variation device will cut off the load of storage battery; thereby guarantee that putting and electric deficiency phenomenon did not appear in storage battery; therefore protected storage battery; prolonged the useful life of storage battery; simultaneously by the communication command of industrial 485 bus modes reception from host computer; to be solidificated in by available machine time and unused time the operating time among the FLASH (flash memory) of single-chip microcomputer inside, system's clock chip ensures the stability that time precision and system move reliably.Therefore the utlity model has the protection storage battery, prolonged the useful life of storage battery, save electric energy, guarantee the advantage of system's operation stability.
Description of drawings
Fig. 1 is a circuit block diagram of the present utility model.
Fig. 2 is a switching power circuit connection diagram of the present utility model.
Fig. 3 is a clock circuit connection diagram of the present utility model.
Fig. 4 is a CPU treatment circuit connection diagram of the present utility model.
Fig. 5 is a relay circuit connection diagram of the present utility model.
Fig. 6 is a communicating circuit connection diagram of the present utility model.
Embodiment
As shown in Figure 1, the utility model comprises switching power circuit, the CPU treatment circuit, clock circuit, communicating circuit, voltage sampling circuit, relay circuit, it is characterized in that: the input power supply is connected with anti-anti-inserted diode by input socket, anti-anti-inserted diode and voltage sampling circuit, relay circuit is connected with switching power circuit, the output of voltage sampling circuit is connected with cpu circuit, carry out signal processing and judgement for cpu circuit, the DC12V power supply of switching power circuit output is connected with relay circuit, provide power supply to relay circuit, the DC5V power supply and the cpu circuit of switching power circuit output, clock circuit is connected with communicating circuit, and be cpu circuit, clock circuit and communicating circuit provide the working power of DC5V, clock circuit is connected with cpu circuit, realize the exchanges data between clock circuit and the cpu circuit, communicating circuit is connected with cpu circuit, CPU carries out exchanges data by communicating circuit and host computer, the output of communicating circuit is connected with socket communication, the output of relay circuit is connected with diode, and diode is connected with accessory power outlet.
As shown in Figure 2, in switching power circuit, positive source is connected with diode D1 by 2 pin of terminal J1, D1 is the diode that prevents the power supply reversal connection, 1 pin of J1 is the 0V of input power supply, the other end of diode D1 is connected with 4 pin of relay J DQ1, be connected with diode D8 simultaneously, the other end of diode D8 is connected with electrochemical capacitor C2, C2 is charged, simultaneously with capacitor C 3,1 pin of transition diode DW and high frequency transformer B connects, the other end of C2 is connected on the 0V of input power supply, capacitor C 3, the other end of transition diode DW is connected with diode D5,5 of 2 pin of the other end of D5 and high frequency transformer B and Switching Power Supply integrated circuit U1,6,7,8 pin connect, by 5 of control switching integrated circuit U1,6,7, the break-make of 8 pin, convert the direct voltage at electrochemical capacitor C2 two ends to high frequency ac signal, be input to 1 pin and 2 pin of high frequency transformer B, photoelectrical coupler U2 is by A, B two parts are formed, 4 pin of high frequency transformer B are connected with diode D6, the other end of diode D6 and electrochemical capacitor C5,4 pin of Switching Power Supply integrated circuit U1,4 pin of photoelectrical coupler U2B connect, working power is provided for Switching Power Supply integrated circuit U1, on the other end of electrochemical capacitor C5 and the 0V that receives the input power supply after the end of electric capacity of the dacron C4 is connected, the other end of capacitor C 4 with receive on 3 pin of element switch power IC U1 after 3 pin of element U2B are connected, 1 of Switching Power Supply integrated circuit U1,2 pin are connected on the 0V of input power supply, ceramic disc capacitor C81 one end is connected with 0V, the other end is connected with the end of C82, the other end of C82 is connected with the 0V of output, 5 pin of high frequency transformer B are connected with diode D7, the high frequency ac signal that transformer is come out is rectified into direct current signal, the other end of D7 and electrolytic capacitor filter C7, filter inductance L2, resistance R 2 is connected with R3, the other end of electrolytic capacitor filter C7 is received the 0V of power supply, the other end of resistance R 2 is connected with 1 pin of photoelectrical coupler U2A, 2 pin of photoelectrical coupler U2A are connected with the other end of resistance R 3 simultaneously and link to each other with capacitor C 8 with the K end of reference voltage integrated circuit U3, after linking to each other with the other end of capacitor C 8, the V end of reference voltage integrated circuit U3 links to each other with resistance R 4, constitute voltage comparator circuit, the A of reference voltage integrated circuit U3 terminates to the 0V of power supply, the other end of filter inductance L2 and resistance R 5, electrochemical capacitor C9 goes 1 pin of lotus root capacitor C 6 three terminal regulators to connect, resistance R 4, R5 is the height of control output voltage, the reference voltage DC2.5V that voltage at resistance R 4 two ends provides for reference voltage integrated circuit U3, element U204 is general three terminal regulator, is output as DC5V.
As shown in Figure 3, in clock circuit, adopt between clock chip and the CPU and carry out exchanges data, thereby finish time control function, in clock circuit, adopt the high precision clock chip DS1302 of MAXIM company, 5 of clock chip U5,6,7 pin respectively with pull-up resistor R8, R7, R6 connects, and with 25 of the single-chip microcomputer U4 of 68HC908JL8ECDW model, 26,27 pin connect the time of reading clock chip DS1302, judge the switching on and shutting down time, resistance R 6, R7, R8 is connected to+5V on, reserve battery B1 is connected with 8 pin of clock chip U5, the other end of reserve battery B1 is received on the 0V of power supply, back-up source during as power failure, guaranteed the normal timing of clock under power-off condition, crystal oscillator J2 is connected with crystal oscillator matching capacitance C11 with 2 pin of clock chip U5, and the other end of C11 is received on the 0V of power supply, the other end of crystal oscillator J2 is connected with crystal oscillator matching capacitance C12, and the other end of crystal oscillator matching capacitance C12 is connected on the 0V of power supply.
As shown in Figure 4, adopt the single-chip microcomputer have the AD function, by with the exchanges data of clock circuit, realize the function of time control; By the voltage in the voltage collection circuit being carried out the AD conversion; input supply voltage is realized the low-voltage variation function; in the CPU treatment circuit; U4 is a single-chip microcomputer; adopt high performance 8 the single-chip microcomputer 68HC908JL8ECDW of MOTOROLA; single-chip microcomputer U4 pin two 7; 26; 25 respectively with clock chip U5 5; 6; 7 pin connect; by to after the reading of clock chip U5; judge switch and time; the resistance R 12 of single-chip microcomputer U4 pin two 1 and relay circuit; R13 connects; come the opening and closing of control relay circuit, simultaneously by behind the voltage signal ADV real-time sampling to input, by converting; judge whether current battery voltage is lower than the low pressure definite value; if be lower than the low pressure definite value,, thereby cut off the load of storage battery by single-chip microcomputer U4 pin block system relay circuit.
As shown in Figure 5, in relay circuit, load is connected on the terminal J4, element D2 is anti-reverse diode, resistance R 12, resistance R 13 is connected with the pin two 1 of single-chip microcomputer U4, another termination power 0V of resistance R 12, resistance R 13 is connected with the base stage of triode Q1, the collector electrode of triode Q1 is connected with 1 pin of relay J DQ1A, the emitter of triode Q1 meets power supply 0V, diode D4 is in parallel with 1 pin and 2 pin of relay, the high-frequency signal when absorbing relay on-off, energising and outage that single-chip microcomputer U4 comes the control relay coil by the high level and the low level of control CTR1 signal.
As shown in Figure 6, adopt the single-chip microcomputer of band serial communication interface, by and communicating circuit between exchanges data realize communication with host computer, in communicating circuit, 1 of 485 communication chip U6,2,13 of 4 pin and single-chip microcomputer U4,16,14 pin connect, 2 of 485 communication chip U6,3 pin connect, as 2 of 485 communication chip U6, when 3 pin are low level, 485 communication chip U6 are in accepting state, as 2 of 485 communication chip U6, when 3 pin are high level, 485 communication chip U6 are in transmit status, 5 pin of 485 communication chip U6 meet the 0V of power supply, 485 communication chips, 8 pin connect+5V, 7 pin of 485 communication chip U6 and resistance R 15, R17, transition diode T2, transition diode T3 connects, 6 pin of 485 communication chip U6 and resistance R 16 and R17, transition diode T1, the transition diode T2 other end connects, the other end of R16 is received+5V, the other end of transition diode T1 is received on the 0V of power supply, the other end of transition diode T3 is received on the 0V of power supply, 1 pin of terminal J3 is connected to+5V on, 4 pin of terminal J3 are connected on the 0V of power supply, 2 pin of terminal J3 are connected with resistance R 17,3 pin of terminal J3 link to each other with the other end of R17, transition diode T1, T2, T3S adopts the high speed transient diode.
Gather the supply voltage of input; carry out in the cpu circuit carrying out the voltage judgement after the AD conversion through delivering to after electric resistance partial pressure and the signal processing; when voltage is lower than definite value; cut off out-put supply; thereby realize the function of protection storage battery; in voltage collection circuit; input voltage signal IN; R18 is connected with divider resistance; the other end of R18 is connected with R19, and the other end of R19 is connected with filter capacitor C13 with resistance R 20, receives on the 0V of power supply after the other end parallel connection of resistance R 20 and filter capacitor C13; 15 pin of single-chip microcomputer U4 carry out the AD conversion in voltage signal ADV and the cpu circuit, input voltage are carried out the judgement of digital-to-analogue conversion for single-chip microcomputer.
The low-voltage variation device adopts MOTOROLA high-performance single-chip microcomputer; pass through voltage acquisition circuit; monitor the voltage of storage battery in real time; when battery voltage continues to be lower than the low pressure definite value of setting 2 seconds; the low-voltage variation device will cut off the load of storage battery; thereby guarantee that putting and electric deficiency phenomenon did not appear in storage battery, therefore protected storage battery, prolonged the useful life of storage battery.Simultaneously by the communication command of industrial 485 bus modes reception from host computer, to the operating time be solidificated among the FLASH (flash memory) of single-chip microcomputer inside by available machine time and unused time, system's clock chip ensures the stability that time precision and system move reliably.
Claims (7)
1. storage battery protector that possesses time control function; comprise switching power circuit; the CPU treatment circuit; clock circuit; communicating circuit; voltage sampling circuit; relay circuit; it is characterized in that: the input power supply is connected with anti-anti-inserted diode by input socket; anti-anti-inserted diode and voltage sampling circuit; relay circuit is connected with switching power circuit; the output of voltage sampling circuit is connected with cpu circuit; carry out signal processing and judgement for cpu circuit; the DC12V power supply of switching power circuit output is connected with relay circuit; provide power supply to relay circuit; the DC5V power supply and the cpu circuit of switching power circuit output; clock circuit is connected with communicating circuit; and be cpu circuit; clock circuit and communicating circuit provide the working power of DC5V; clock circuit is connected with cpu circuit; realize the exchanges data between clock circuit and the cpu circuit; communicating circuit is connected with cpu circuit; CPU carries out exchanges data by communicating circuit and host computer; the output of communicating circuit is connected with socket communication; the output of relay circuit is connected with diode, and diode is connected with accessory power outlet.
2. the storage battery protector that possesses time control function according to claim 1; it is characterized in that: in switching power circuit; positive source is connected with diode D1 by 2 pin of terminal J1; D1 is the diode that prevents the power supply reversal connection; 1 pin of J1 is the 0V of input power supply; the other end of diode D1 is connected with 4 pin of relay J DQ1; be connected with diode D8 simultaneously; the other end of diode D8 is connected with electrochemical capacitor C2; C2 is charged; simultaneously with capacitor C 3; 1 pin of transition diode DW and high frequency transformer B connects; the other end of C2 is connected on the 0V of input power supply; capacitor C 3; the other end of transition diode DW is connected with diode D5; 5 of 2 pin of the other end of D5 and high frequency transformer B and Switching Power Supply integrated circuit U1; 6; 7; 8 pin connect; by 5 of control switching integrated circuit U1; 6; 7; the break-make of 8 pin; convert the direct voltage at electrochemical capacitor C2 two ends to high frequency ac signal; be input to 1 pin and 2 pin of high frequency transformer B; photoelectrical coupler U2 is by A; B two parts are formed; 4 pin of high frequency transformer B are connected with diode D6; the other end of diode D6 and electrochemical capacitor C5; 4 pin of Switching Power Supply integrated circuit U1; 4 pin of photoelectrical coupler U2B connect; working power is provided for Switching Power Supply integrated circuit U1; on the other end of electrochemical capacitor C5 and the 0V that receives the input power supply after the end of electric capacity of the dacron C4 is connected; the other end of capacitor C 4 with receive on 3 pin of element switch power IC U1 after 3 pin of element U2B are connected; 1 of Switching Power Supply integrated circuit U1; 2 pin are connected on the 0V of input power supply; ceramic disc capacitor C81 one end is connected with 0V; the other end is connected with the end of C82; the other end of C82 is connected with the 0V of output; 5 pin of high frequency transformer B are connected with diode D7; the high frequency ac signal that transformer is come out is rectified into direct current signal; the other end of D7 and electrolytic capacitor filter C7; filter inductance L2; resistance R 2 is connected with R3; the other end of electrolytic capacitor filter C7 is received the 0V of power supply; the other end of resistance R 2 is connected with 1 pin of photoelectrical coupler U2A; 2 pin of photoelectrical coupler U2A are connected with the other end of resistance R 3 simultaneously and link to each other with capacitor C 8 with the K end of reference voltage integrated circuit U3; after linking to each other with the other end of capacitor C 8, the V end of reference voltage integrated circuit U3 links to each other with resistance R 4; constitute voltage comparator circuit; the A of reference voltage integrated circuit U3 terminates to the 0V of power supply; the other end of filter inductance L2 and resistance R 5; electrochemical capacitor C9 goes 1 pin of lotus root capacitor C 6 three terminal regulators to connect; resistance R 4; R5 is the height of control output voltage; the reference voltage DC2.5V that voltage at resistance R 4 two ends provides for reference voltage integrated circuit U3; element U204 is general three terminal regulator, is output as DC5V.
3. the storage battery protector that possesses time control function according to claim 1; it is characterized in that: in clock circuit; adopt between clock chip and the CPU and carry out exchanges data; thereby finish time control function; in clock circuit, adopt the high precision clock chip DS1302 of MAXIM company; 5 of clock chip U5; 6; 7 pin respectively with pull-up resistor R8; R7; R6 connects; and with 25 of the single-chip microcomputer U4 of 68HC908JL8ECDW model; 26; 27 pin connect the time of reading clock chip DS1302; judge the switching on and shutting down time; resistance R 6; R7; R8 is connected to+5V on; reserve battery B1 is connected with 8 pin of clock chip U5; the other end of reserve battery B1 is received on the 0V of power supply; back-up source during as power failure; guaranteed the normal timing of clock under power-off condition; crystal oscillator J2 is connected with crystal oscillator matching capacitance C11 with 2 pin of clock chip U5; the other end of C11 is received on the 0V of power supply; the other end of crystal oscillator J2 is connected with crystal oscillator matching capacitance C12, and the other end of crystal oscillator matching capacitance C12 is connected on the 0V of power supply.
4. the storage battery protector that possesses time control function according to claim 1 is characterized in that: adopt the single-chip microcomputer have the AD function, by with the exchanges data of clock circuit, realize the function of time control; By the voltage in the voltage collection circuit being carried out the AD conversion; input supply voltage is realized the low-voltage variation function; in the CPU treatment circuit; U4 is a single-chip microcomputer; adopt high performance 8 the single-chip microcomputer 68HC908JL8ECDW of MOTOROLA; single-chip microcomputer U4 pin two 7; 26; 25 respectively with clock chip U5 5; 6; 7 pin connect; by to after the reading of clock chip U5; judge switch and time; the resistance R 12 of single-chip microcomputer U4 pin two 1 and relay circuit; R13 connects; come the opening and closing of control relay circuit, simultaneously by behind the voltage signal ADV real-time sampling to input, by converting; judge whether current battery voltage is lower than the low pressure definite value; if be lower than the low pressure definite value,, thereby cut off the load of storage battery by single-chip microcomputer U4 pin block system relay circuit.
5. the storage battery protector that possesses time control function according to claim 1; it is characterized in that: in relay circuit; load is connected on the terminal J4; element D2 is anti-reverse diode; resistance R 12; resistance R 13 is connected with the pin two 1 of single-chip microcomputer U4; another termination power 0V of resistance R 12; resistance R 13 is connected with the base stage of triode Q1; the collector electrode of triode Q1 is connected with 1 pin of relay J DQ1A; the emitter of triode Q1 meets power supply 0V; diode D4 is in parallel with 1 pin and 2 pin of relay, the high-frequency signal when absorbing relay on-off, energising and outage that single-chip microcomputer U4 comes the control relay coil by the high level and the low level of control CTR1 signal.
6. the storage battery protector that possesses time control function according to claim 1; it is characterized in that: the single-chip microcomputer that adopts the band serial communication interface; by and communicating circuit between exchanges data realize communication with host computer; in communicating circuit; 1 of 485 communication chip U6; 2; 13 of 4 pin and single-chip microcomputer U4; 16; 14 pin connect; 2 of 485 communication chip U6; 3 pin connect; as 2 of 485 communication chip U6; when 3 pin are low level; 485 communication chip U6 are in accepting state; as 2 of 485 communication chip U6; when 3 pin are high level; 485 communication chip U6 are in transmit status; 5 pin of 485 communication chip U6 meet the 0V of power supply; 485 communication chips, 8 pin connect+5V; 7 pin of 485 communication chip U6 and resistance R 15; R17; transition diode T2; transition diode T3 connects; 6 pin of 485 communication chip U6 and resistance R 16 and R17; transition diode T1; the transition diode T2 other end connects; the other end of R16 is received+5V; the other end of transition diode T1 is received on the 0V of power supply; the other end of transition diode T3 is received on the 0V of power supply; 1 pin of terminal J3 is connected to+5V on; 4 pin of terminal J3 are connected on the 0V of power supply; 2 pin of terminal J3 are connected with resistance R 17; 3 pin of terminal J3 link to each other with the other end of R17, transition diode T1; T2; T3S adopts the high speed transient diode.
7. the storage battery protector that possesses time control function according to claim 1; it is characterized in that: the supply voltage of gathering input; carry out in the cpu circuit carrying out the voltage judgement after the AD conversion through delivering to after electric resistance partial pressure and the signal processing; when voltage is lower than definite value; cut off out-put supply; thereby realize the function of protection storage battery; in voltage collection circuit; input voltage signal IN; R18 is connected with divider resistance; the other end of R18 is connected with R19; the other end of R19 is connected with filter capacitor C13 with resistance R 20; receive on the 0V of power supply after the other end parallel connection of resistance R 20 and filter capacitor C13,15 pin of single-chip microcomputer U4 carry out the AD conversion in voltage signal ADV and the cpu circuit, input voltage are carried out the judgement of digital-to-analogue conversion for single-chip microcomputer.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201841800U CN201805219U (en) | 2010-05-10 | 2010-05-10 | Storage battery protector provided with time control function |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2010201841800U CN201805219U (en) | 2010-05-10 | 2010-05-10 | Storage battery protector provided with time control function |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201805219U true CN201805219U (en) | 2011-04-20 |
Family
ID=43874720
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2010201841800U Expired - Fee Related CN201805219U (en) | 2010-05-10 | 2010-05-10 | Storage battery protector provided with time control function |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201805219U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105552877A (en) * | 2016-02-01 | 2016-05-04 | 凯迈(洛阳)电子有限公司 | Reverse connection monitoring device of power storage battery |
| CN104218538B (en) * | 2013-05-30 | 2017-07-04 | 深圳市海洋王照明工程有限公司 | battery over-discharge protection circuit |
| CN112735486A (en) * | 2020-12-22 | 2021-04-30 | 重庆德科电子仪表有限公司 | Audio playing method based on a-law algorithm |
-
2010
- 2010-05-10 CN CN2010201841800U patent/CN201805219U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104218538B (en) * | 2013-05-30 | 2017-07-04 | 深圳市海洋王照明工程有限公司 | battery over-discharge protection circuit |
| CN105552877A (en) * | 2016-02-01 | 2016-05-04 | 凯迈(洛阳)电子有限公司 | Reverse connection monitoring device of power storage battery |
| CN112735486A (en) * | 2020-12-22 | 2021-04-30 | 重庆德科电子仪表有限公司 | Audio playing method based on a-law algorithm |
| CN112735486B (en) * | 2020-12-22 | 2022-07-15 | 重庆德科电子仪表有限公司 | Audio playing method based on a-law algorithm |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN205647002U (en) | Integrated uninterrupted power source's thing networking communication box | |
| CN204349496U (en) | Portable multi-voltage output mobile power supply | |
| CN201868073U (en) | LED (Light-Emitting Diode) display screen power supply system with DC (Direct Current) time control function | |
| CN206650467U (en) | A kind of management of charging and discharging circuit of lithium battery | |
| CN201805219U (en) | Storage battery protector provided with time control function | |
| CN209434916U (en) | A kind of protection board of high-power high-voltage lithium battery | |
| CN205319726U (en) | Safe hot plug formula battery supply system | |
| CN104393658A (en) | Energy management circuit | |
| CN204089343U (en) | The distribution power automation terminal possessing backup power system under low temperature environment | |
| CN201947046U (en) | Switch power supply with backup battery for power supply | |
| CN102111947B (en) | Intelligent control system for emergency lighting electroless lamp | |
| CN203691031U (en) | Uninterrupted DC power supply | |
| CN201403057Y (en) | Portable solar energy mobile power supply | |
| CN202474940U (en) | Lithium battery miner lamp charging management switch based on current direction | |
| CN104882742A (en) | Intelligent charging socket | |
| CN203933057U (en) | A kind of portable multi-function portable power source | |
| CN202602351U (en) | Time sharing power supply energy storage system for residence | |
| CN201994719U (en) | Intelligent power distribution terminal utilizing mixed stored energy | |
| CN204350377U (en) | Super capacitor offset-type solar street light electric power system and control device thereof | |
| CN204795734U (en) | Emergency light circuit with fill discharge protection circuit | |
| CN204905996U (en) | Emergent portable power source of 380V electric power | |
| CN101350529B (en) | Multifunctional charger | |
| CN209070337U (en) | Mine data switch remote monitoring device | |
| CN203933149U (en) | A kind of DC UPS device | |
| CN202503336U (en) | High efficient automatic management module of backup battery of intelligent concentrator |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20110420 Termination date: 20130510 |