CN100511072C

CN100511072C - Heating control device of ATM

Info

Publication number: CN100511072C
Application number: CNB2006101344543A
Authority: CN
Inventors: 张闫松
Original assignee: Individual
Current assignee: Individual
Priority date: 2006-12-01
Filing date: 2006-12-01
Publication date: 2009-07-08
Anticipated expiration: 2026-12-01
Also published as: CN1971469A

Abstract

The invention relates to a ATM heating control device which heats and controls the inner temperature of the ATM. The construction: power source part which is used to supply power to thermometric instrument and switch power supply and detect the current; eletricleak detecting and overheating protection part which is used to detect the current of leakage and break circuit when the heating temperature over thee safe value; fan control part which is used to receive the signal come from the heating detect part and control the fan; heating detect part which is used to receive the heating voltage signal transferred by thermometric instrument and transfer the signal to fan controller; thermometric instrument which is used to detect the temperature of safe by thermocouple and determine whether or not supply power to heater and transfer voltage signal to heating detect part; switch power supply which transfer voltage of 220V to safe working voltage. Its volume can not be limited by safe, so there is enough space to assemble circuit.

Description

Heating control device of ATM

Technical field

The present invention relates to a kind of control device, relate in particular to a kind of heating control device of ATM of controlling that the ATM (automatic teller machine) temperature inside is heated.

Background technology

Financial world's development now rapidly, bank has released the various handy services for the people for adapting to this development, has set up ATM (automatic teller machine) in bank, greatly makes things convenient for the people, but the ATM (automatic teller machine) need of work is in certain temperature range, so be provided with heating arrangement in ATM (automatic teller machine).Present heating arrangement designs for integral type, and integral type heating arrangement volume for ATM (automatic teller machine) (ATM) is excessive.The overall dimensions of integral type heating arrangement approach rectangle or positive square, and volume bigger than normal being unfavorable for installs.Paper money supplying module has two kinds of suspension type and putting types in the safety cabinet the inside.Because heating part is in the same place with control section, make the volume of heating arrangement exceed the remaining space of safety cabinet like this.On the paper money supplying module of a paper money case position that can only be put into ATM that has for suspension type, most banks only use two in four paper money casees.Balanced structure to paper money supplying module can cause certain damage like this, and when maintaining machinery, inconvenience very.Get and close heating arrangement earlier.Take out heating module.Again paper money supplying module is pulled out maintenance, trouble very, and stop heating work, machine performance is recovered to have certain influence.The serviceability temperature of ATM is lower than 10 degree above freezing, can influence the normal use of machine.And it is more inconvenient and difficult for the installation of putting type.Sometimes can't install and use.

The integral type heating arrangement is subjected to the restriction of overall volume, and control section occupies very big space, and the space of heating and radiator portion is narrow and small.The control section of integral type heating arrangement is in the same place with heating part, and the element of control section is electronic component and plastic components, and temperature raises, damages easily.And use dangerous, no creepage protection function.When well heater stopped to heat, fan quit work immediately, made the temperature of safety cabinet continue to raise, and caused other inner unit failure easily.

Summary of the invention

The present invention provides a kind of heating control device of ATM for solving the problems of the technologies described above; purpose is to have increased earth leakage protection and delay circuit when being installed in control device outside the safety cabinet; it is controlled more accurately to well heater; guarantee the operate as normal of well heater; accurately measure the temperature in the safety cabinet, be convenient to maintenance, increase heating power; element operate as normal in the security of enhancing equipment, guarantee insurance cabinet.

Heating control device of ATM of the present invention is located at the outside of safety cabinet, and be made of following structure: power supply unit is used for powering to temperature control instrument and Switching Power Supply, and electric current is detected; Detection of electrical leakage and overheating protection portion are used to detect leakage current and heating-up temperature are carried out power-off protection above behind the safety value; Fan control portion is used to receive the signal that the heating test section detects the duty of well heater, and fan is controlled; The heating test section is used to receive the heating voltage signal that temperature control instrument transmits, and passes the signal to fan governor; Temperature control instrument is used for by the temperature in the thermopair detection safety cabinet, and whether transmits voltage signal to heating installation power supply with to the heating test section according to the decision of temperature definite value; Switching Power Supply becomes safe operating voltage with the 220V voltage transitions.

An elementary end that constitutes zero-sequence transformer T of described power supply unit with connect the alternating current 220V power supply, an end of the pilot relay of the elementary other end a termination temperature control instrument of zero-sequence transformer after relay normally open contact JK1-2, K switch are connected; The B end of one end of other end b termination electric heating tube and heating test section, the A end of the other end of electric heating tube and heating testing circuit is connected with the other end of the pilot relay of temperature control instrument, is connected to Switching Power Supply between relay normally open contact JK1-2 and the K switch.

The non-same polarity of elementary two phase lines of described zero-sequence transformer inserts test button K3, and seals in current-limiting resistance R9 formation simulation leakage circuit.

Described detection of electrical leakage and overheating protection portion are made of following structure: direct current 12V is added to triode Q3 collector and is added to the Q3 base stage by biasing resistor R7, triode Q3 base stage is gone controllable silicon Q4 anode A, and triode Q3 emitting stage removes relay J K coil and passes through temperature switch K1 ground connection; Relay J K coil two ends are connected to protection diode D3, and protection diode D3 anode is connected between relay J K and the temperature switch K1; Controllable silicon Q4 negative electrode K ground connection, the controlled stage G of controllable silicon Q4 connects diode D5 negative electrode, electrochemical capacitor C4 positive pole respectively, seals in the C point of resistance R 8 to zero-sequence transformer T, the D point ground connection of diode D5 plus earth, electrochemical capacitor C4 minus earth, zero-sequence transformer T; Relay J K coil and temperature switch K1 node connect diode D4 anode, and diode D4 negative electrode is received controllable silicon Q4 controlled stage G.

Be connected in parallel on the two ends of triode Q3 collector and emitter behind the described malfunction indicator lamp LED series limiting resistor R6, the anode of malfunction indicator lamp LED is connected with triode Q3 collector.

Describedly between positive 12V power supply and biasing resistor R7, be provided with reset button K2.

Described fan control portion is made of following structure: the positive 12V of fan D one termination, the positive 12V of input voltage are connected capacitor C 3 minus earths with 4,8 pin of IC1 after IC2 voltage stabilizing, capacitor C 3 filtering; Charging resistor R3 one termination IC2 output terminal connects, 2,6 pin of another termination of charging resistor R3 IC1; 2,6 pin of the positive termination IC1 of electrochemical capacitor C1, electrochemical capacitor C1 negativing ending grounding; Decoupling capacitance C2 is connected between 5 pin and ground of IC1; The 1 pin ground connection of IC1; Pull down resistor R4 is connected between 3 pin and ground of IC1,3 pin of resistance R 5 one termination IC1, another termination field effect transistor Q2 grid; The drain electrode of field effect transistor Q2 is connected with fan, is connected with resistance R 2 one ends between the source ground of field effect transistor Q2, charging resistor R3 and electrochemical capacitor C1.

Described fan D two ends and the afterflow protection diode D2 that connects, the negative electrode of afterflow protection diode D2 meets 12V.

Described heating test section is to be made of following structure: diode D1 anode connects the A point, and diode D1 negative electrode seals in 1 pin of current-limiting resistance R1 to optocoupler pipe Q1, and 2 pin of optocoupler pipe Q1 connect the B point; The 3 pin ground connection of optocoupler pipe Q1, the 4 pin connecting resistance R2 of optocoupler pipe Q1.

Advantageous effect of the present invention:

Control device of the present invention is in the outside of safety cabinet, and its volume is not subjected to the restriction of safety cabinet volume, so enough space mounting circuit are arranged.Increase following function: 1, creepage protection function, because accident produces when leaking electricity, circuit will cut off the power supply of equipment when equipment.The safety of the protection equipment and the person.And install the reliability that test circuit comes the work of testing circuit additional.2, increase delay circuit, when the heating tube of circuit control stops to heat, also have a large amount of heat energy also not shed timely, cause local temperature too high easily, meet accident.Increase the duration of runs of fan.Just can drop to equipment identical according to test time of 2 minutes with the temperature of environment.So stop heating during equipment work, fan remained in operation two minutes, reached consistent with the temperature of environment.3, increase to force power-down circuit, increase temperature switch, be set to 40 ℃, because during the other reasons stall, heat will make temperature measuring equipment action, the power supply of the whole heating element of force disconnect when fan.The temperature of so whole heating module can not surpass 40 ℃, reaches the purpose of protection ATM.4, increase to report to the police and reset circuit, when electric leakage or temperature taking place when too high, holding circuit works and cuts off the electricity supply, and controller is the warning that brightens of 8 millimeters major diameter red diode simultaneously.Clear and definite prompting customer equipment goes wrong to be needed to solve.Fault solves by reset key recovers operate as normal.5,12 volts fan power supply adopts Switching Power Supply, when load short circuits, and the Switching Power Supply failure of oscillation.Prevent the damage of power supply, well heater stops heating simultaneously.

Description of drawings

Fig. 1 is circuit theory diagrams of the present invention.

Among the figure 1, power supply unit; 2, detection of electrical leakage and overheating protection portion; 3, fan control portion; 4, heating test section; 5, temperature control instrument; 6, Switching Power Supply; 7, electric heating tube.

Embodiment

The present invention is further illustrated below in conjunction with accompanying drawing.

Heating control device of ATM of the present invention is located at the outside of safety cabinet, and be made of following structure: power supply unit 1 is used for powering to temperature control instrument and Switching Power Supply, and electric current is detected; Detection of electrical leakage and overheating protection portion 2 are used to detect leakage current and heating-up temperature are carried out power-off protection above behind the safety value; Fan control portion 3 is used to receive the signal that the heating test section detects the duty of well heater, and fan is controlled; Heating test section 4 is used to receive the heating voltage signal that temperature control instrument transmits, and passes the signal to fan governor; Temperature control instrument 5 is used for by the temperature in the thermopair detection safety cabinet, and whether transmits voltage signal to heating installation power supply with to the heating test section according to the decision of temperature definite value; Switching Power Supply 6 becomes safe operating voltage with the 220V voltage transitions.Described temperature control instrument is STC8010.

An elementary end that constitutes zero-sequence transformer T of described power supply unit 1 with connect the alternating current 220V power supply, an end of the pilot relay of the elementary other end a termination temperature control instrument 5 of zero-sequence transformer after relay normally open contact JK1-2, K switch are connected; The B end of one end of other end b termination electric heating tube 7 and heating test section, the A end of the other end of electric heating tube 7 and heating testing circuit 4 is connected with the other end of the pilot relay of temperature control instrument 5, is connected to Switching Power Supply between relay normally open contact JK1-2 and the K switch.Non-same polarity in elementary two phase lines of zero-sequence transformer inserts test button K3, and seals in current-limiting resistance R9 formation simulation leakage circuit.Whether test button K3 simulates electric leakage, and circuit enters guard mode, working properly in order to detect holding circuit.

Described detection of electrical leakage and overheating protection portion 2 are made of following structure: direct current 12V is added to triode Q3 collector and is added to the Q3 base stage by biasing resistor R7, triode Q3 base stage is gone controllable silicon Q4 anode A, and triode Q3 emitting stage removes relay J K coil and passes through temperature switch K1 ground connection; Relay J K coil two ends are connected to protection diode D3, and protection diode D3 anode is connected between relay J K and the temperature switch K1; Controllable silicon Q4 negative electrode K ground connection, the controlled stage G of controllable silicon Q4 connects diode D5 negative electrode, electrochemical capacitor C4 positive pole respectively, seals in the C point of resistance R 8 to zero-sequence transformer T, the D point ground connection of diode D5 plus earth, electrochemical capacitor C4 minus earth, zero-sequence transformer T; Relay J K coil and temperature switch K1 node connect diode D4 anode, and diode D4 negative electrode is received controllable silicon Q4 controlled stage G.Be connected in parallel on the two ends of triode Q3 collector and emitter behind the described malfunction indicator lamp LED series limiting resistor R6, the anode of malfunction indicator lamp LED is connected with triode Q3 collector.Describedly between positive 12V power supply and biasing resistor R7, be provided with reset button K2.When carrying out detection of electrical leakage by zero-sequence transformer T; resistance R 8; electrochemical capacitor C4; diode D5; controllable silicon Q4 forms electric-leakage detection circuit; when module generation leak current fault; the primary current imbalance of zero-sequence transformer T; the C of zero-sequence transformer T; the D two ends induce voltage through resistance R 8 by diode D5 half-wave rectification electrochemical capacitor C4 filtering; be added to the control utmost point G of controllable silicon Q4; the controllable silicon Q4 conducting that is triggered; controllable silicon Q4 anode A low level; and by reset button K2; biasing resistor R7 keeps conducting; triode Q3 base stage low level; triode Q3 ends; relay J K discharges, and relay contact JK1-2 disconnects, and the emitting stage of triode Q3 is an electronegative potential; malfunction indicator lamp LED is by resistance R 6; relay J K coil; temperature switch K1 forms the loop and lights to ground, alternating current disconnects realizes protection.Constitute overheating protection circuit by temperature switch K1, diode D4, triode Q3 during overheating protection; when heter temperature is spent above 40; temperature switch K1 disconnects; high level is added to controllable silicon Q4 controlled stage G by triode Q3, relay J K coil, diode D4; controllable silicon Q4 conducting; and keep conducting by reset button K2, biasing resistor R7; triode Q3 ends; relay J K disconnects; malfunction indicator lamp LED lights by the secondary loop that forms to ground of resistance R 6, relay J K coil, diode D4, resistance R 8, zero-sequence transformer T, realizes protection.When reset button K2 moves when resetting, press reset button K2, triode Q3 loses and keeps current cut-off, reset button K2 rebounds, 12V voltage is added to triode Q3 base stage by reset button K2, biasing resistor R7, triode Q3 turn-on relay JK adhesive, circuit reset.

Described fan control portion 3 is to be made of following structure: the positive 12V of fan D one termination, the positive 12V of input voltage are connected capacitor C 3 minus earths with 4,8 pin of IC1 after IC2 voltage stabilizing, capacitor C 3 filtering; Charging resistor R3 one termination IC2 output terminal connects, 2,6 pin of another termination of charging resistor R3 IC1; 2,6 pin of the positive termination IC1 of electrochemical capacitor C1, electrochemical capacitor C1 negativing ending grounding; Decoupling capacitance C2 is connected between 5 pin and ground of IC1; The 1 pin ground connection of IC1; Pull down resistor R4 is connected between 3 pin and ground of IC1,3 pin of resistance R 5 one termination IC1, another termination field effect transistor Q2 grid; The drain electrode of field effect transistor Q2 is connected with fan, is connected with resistance R 2 one ends between the source ground of field effect transistor Q2, charging resistor R3 and electrochemical capacitor C1.Described fan D two ends and the afterflow protection diode D2 that connects, the negative electrode of afterflow protection diode D2 meets 12V.Constitute typical case's time-delay fan control circuitry by IC1NE555, IC2LM7806, Q2IRF640, electrochemical capacitor C1, decoupling capacitance C2, capacitor C 3, resistance R 2, charging resistor R3, pull down resistor R4, resistance R 5, electrochemical capacitor C1, charging resistor R3 have determined delay time; By the actual detected delay time is 2 minutes, just can all take away remaining heat; During heated condition, 2 pin of IC1 are electronegative potential, and 3 pin output noble potential is added to field effect transistor Q2 grid through resistance R 5, field effect transistor Q2 conducting, and fan D gets electric startup; When stopping to heat, 2 pin of IC1 lose the low spot position of optocoupler and clamp down on, and+6V slowly charges to C1 by charging resistor R3, when 2 pin of IC1 reach 4.5V left and right sides noble potential after 2 minutes, the 3 pin upset of IC1 is the output electronegative potential, and field effect transistor Q2 ends, and fan D dead electricity stops; IC1 control field effect transistor Q2 automatic time delay conducting 2 minutes has guaranteed that well heater fully outwards dissipates waste heat, and is consistent with environment temperature when well heater stops to heat like this.

Described heating test section 4 is to be made of following structure: diode D1 anode connects the A point, and diode D1 negative electrode seals in 1 pin of current-limiting resistance R1 to optocoupler pipe Q1, and 2 pin of optocoupler pipe Q1 connect the B point; The 3 pin ground connection of optocoupler pipe Q1, the 4 pin connecting resistance R2 other ends of optocoupler pipe Q1.

Claims

1, heating control device of ATM is characterized in that being located at the outside of safety cabinet, is made of following structure:

Power supply unit is used for powering to temperature control instrument and Switching Power Supply, and electric current is detected;

Detection of electrical leakage and overheating protection portion are used to detect leakage current and heating-up temperature are carried out power-off protection above behind the safety value;

Fan control portion is used to receive the signal that the heating test section detects the duty of well heater, and fan is controlled;

The heating test section is used to receive the heating voltage signal that temperature control instrument transmits, and passes the signal to fan governor;

Temperature control instrument is used for by the temperature in the thermopair detection safety cabinet, and whether transmits voltage signal to heating installation power supply with to the heating test section according to the decision of temperature definite value;

Switching Power Supply becomes safe operating voltage with the 220V voltage transitions.

2, heating control device of ATM according to claim 1, an elementary end that constitutes zero-sequence transformer T that it is characterized in that described power supply unit with connect the alternating current 220V power supply, an end of the pilot relay of the elementary other end a termination temperature control instrument of zero-sequence transformer after relay normally open contact JK1-2, K switch are connected; The B end of one end of other end b termination electric heating tube and heating test section, the A end of the other end of electric heating tube and heating testing circuit is connected with the other end of the pilot relay of temperature control instrument, is connected to Switching Power Supply between relay normally open contact JK1-2 and the K switch.

3, heating control device of ATM according to claim 2 is characterized in that inserting test button K3 at the non-same polarity of elementary two phase lines of zero-sequence transformer, and seals in current-limiting resistance R9 formation simulation leakage circuit.

4, heating control device of ATM according to claim 1, it is characterized in that described detection of electrical leakage and overheating protection portion are made of following structure: direct current 12V is added to triode Q3 collector and is added to the Q3 base stage by biasing resistor R7, triode Q3 base stage is gone controllable silicon Q4 anode A, and triode Q3 emitting stage removes relay J K coil and passes through temperature switch K1 ground connection; Relay J K coil two ends are connected to protection diode D3, and protection diode D3 anode is connected between relay J K and the temperature switch K1; Controllable silicon Q4 negative electrode K ground connection, the controlled stage G of controllable silicon Q4 connects diode D5 negative electrode, electrochemical capacitor C4 positive pole respectively, seals in the C point of resistance R 8 to zero-sequence transformer T, the D point ground connection of diode D5 plus earth, electrochemical capacitor C4 minus earth, zero-sequence transformer T; Relay J K coil and temperature switch K1 node connect diode D4 anode, and diode D4 negative electrode is received controllable silicon Q4 controlled stage G.

5, heating control device of ATM according to claim 4, it is characterized in that being connected in parallel on behind the described malfunction indicator lamp LED series limiting resistor R6 two ends of triode Q3 collector and emitter, the anode of malfunction indicator lamp LED is connected with triode Q3 collector.

6, heating control device of ATM according to claim 4 is characterized in that describedly being provided with reset button K2 between positive 12V power supply and biasing resistor R7.

7, heating control device of ATM according to claim 1, it is characterized in that described fan control portion is made of following structure: the positive 12V of fan D one termination, the positive 12V of input voltage is connected capacitor C 3 minus earths with 4,8 pin of IC1 after IC2 voltage stabilizing, capacitor C 3 filtering; Charging resistor R3 one termination IC2 output terminal connects, 2,6 pin of another termination of charging resistor R3 IC1; 2,6 pin of the positive termination IC1 of electrochemical capacitor C1, electrochemical capacitor C1 negativing ending grounding; Decoupling capacitance C2 is connected between 5 pin and ground of IC1; The 1 pin ground connection of IC1; Pull down resistor R4 is connected between 3 pin and ground of IC1,3 pin of resistance R 5 one termination IC1, another termination field effect transistor Q2 grid; The drain electrode of field effect transistor Q2 is connected with fan, is connected with resistance R 2 one ends between the source ground of field effect transistor Q2, charging resistor R3 and electrochemical capacitor C1.

8, heating control device of ATM according to claim 7, the afterflow protection diode D2 that it is characterized in that described fan D two ends and connect, the negative electrode of afterflow protection diode D2 meets 12V.

9, separated heating device for ATM according to claim 1, it is characterized in that described heating test section is to be made of following structure: diode D1 anode connects the A point, diode D1 negative electrode seals in 1 pin of current-limiting resistance R1 to optocoupler pipe Q1, and 2 pin of optocoupler pipe Q1 connect the B point; The 3 pin ground connection of optocoupler pipe Q1, the 4 pin connecting resistance R2 other ends of optocoupler pipe Q1.