CN212259438U - A thing networking circuit board for pipeline machine - Google Patents
A thing networking circuit board for pipeline machine Download PDFInfo
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- CN212259438U CN212259438U CN202021283265.4U CN202021283265U CN212259438U CN 212259438 U CN212259438 U CN 212259438U CN 202021283265 U CN202021283265 U CN 202021283265U CN 212259438 U CN212259438 U CN 212259438U
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Abstract
The utility model discloses an internet of things circuit board for a pipeline machine, which comprises a front panel and a back panel based on the same substrate, wherein a singlechip and an internet of things communication module are welded on the back panel, and the singlechip is electrically connected with the internet of things communication module; the back panel is divided into a weak current area and a strong current area, and the single chip microcomputer and the Internet of things communication module are arranged in the weak current area; a switching power supply module is arranged in the strong current area, converts alternating current into a first direct current power supply to be output, is electrically connected with a power supply conversion circuit in the weak current area, and respectively supplies power to the single chip microcomputer and the Internet of things communication module; and a water inlet valve control circuit is also arranged in the strong electric area, is electrically connected with the singlechip and is used for controlling the opening and closing of the water inlet valve. The utility model discloses concentrated forceful electric power and light current on same circuit board, improved the space utilization of circuit board.
Description
Technical Field
The utility model relates to a pipeline machine field especially relates to a thing networking circuit board for pipeline machine.
Background
The pipeline machine can be applied to various occasions, such as families, offices, campuses, markets and the like, and is popular among people due to small volume and complete functions. Therefore, in the design process, the pipeline machine is required to be compatible with various water selling forms to meet the requirements of different occasions, and meanwhile, the characteristic that the size of the pipeline machine is small is also required to be combined, strong electricity input by the pipeline machine and weak electricity used by a circuit board are concentrated on the same circuit board as much as possible, the size of the circuit board is reduced, the utilization rate of the circuit board is improved, and the pipeline machine is convenient to mount and use.
Disclosure of Invention
The utility model provides a thing networking circuit board for pipeline machine solves the pipeline machine how to concentrate forceful electric power and light current on same circuit board, improves the problem of circuit board utilization ratio.
In order to solve the technical problem, one technical scheme adopted by the utility model is to provide an internet of things circuit board for a pipeline machine, which comprises a front panel and a back panel based on the same substrate, wherein a single chip microcomputer and an internet of things communication module are welded on the back panel, and the single chip microcomputer and the internet of things communication module are electrically connected; the back panel is divided into a weak current area and a strong current area, and the single chip microcomputer and the Internet of things communication module are arranged in the weak current area; a switching power supply module is arranged in the strong current area, converts alternating current into a first direct current power supply for output, is electrically connected with a power supply conversion circuit in the weak current area, and respectively supplies power to the single chip microcomputer and the Internet of things communication module; and a water inlet valve control circuit is also arranged in the strong electric area, is electrically connected with the singlechip and is used for controlling the opening and closing of the water inlet valve.
Preferably, the water inlet valve control circuit comprises a first relay welded close to the switching power supply module, and an isolation groove for isolating strong electric interference is arranged between the first relay and the switching power supply module; the positive electrode of a coil of the first relay is connected with a first direct-current power supply, the negative electrode of the coil of the first relay is connected with the collector electrode of the water inlet valve control triode, the emitter electrode of the water inlet valve control triode is grounded, and the base electrode of the water inlet valve control triode is electrically connected with a resistor and then is connected with an input/output pin of the single chip microcomputer; the first controlled end of the first relay is connected with a zero line of alternating current, the second controlled end of the first relay is connected with a zero line end of the water inlet valve, and a fire wire end of the water inlet valve is connected with a fire wire of alternating current.
Preferably, a high-voltage heating circuit connected with a heater is further arranged in the strong current region, the high-voltage heating circuit is further electrically connected with the single chip microcomputer, the high-voltage heating circuit comprises a second relay welded close to the switching power supply module, and an isolation groove for isolating strong current interference is arranged between the second relay and the switching power supply module; the positive electrode of a coil of the second relay is connected with a first direct-current power supply, the negative electrode of the coil of the second relay is connected with the collector electrode of the high-voltage control triode, the emitter electrode of the high-voltage control triode is grounded, and the base electrode of the high-voltage control triode is electrically connected with a resistor and then is connected with an input/output pin of the single chip microcomputer; the first controlled end of the third relay is connected with a zero line of alternating current, the second controlled end of the third relay is connected with a zero line end of the heater, and a live wire end of the heater is connected with a live wire of alternating current.
Preferably, a display screen is arranged on the front panel, and the position of the display screen corresponds to the position of the weak current area and is also electrically connected with the single chip microcomputer.
Preferably, the single chip microcomputer is a chip STC8A4K32S2a12, the internet of things communication module includes an LTE module and a SIM card socket for installing a SIM card, and the LTE module is electrically connected to the SIM card socket.
Preferably, a card swiping induction socket connected with the card swiping induction circuit board is welded in the weak current area.
Preferably, a two-core water pump socket is welded in the weak current area, a first core of the water pump socket is connected with a power supply end of a water pump through a cable, a welding hole of the water pump socket is connected with a direct-current power supply through a printed copper wire, a second core of the water pump socket is connected with a grounding end of the water pump through a cable, and the welding hole of the water pump socket is connected with a water pump control circuit through a printed copper wire; the water pump control circuit comprises a first field effect transistor, a drain electrode of the first field effect transistor is connected with a welding hole of a second core of the water pump socket through a printed copper wire, a grid electrode of the first field effect transistor is connected with one end of a first control resistor, the other end of the first control resistor is connected with an input/output pin of the single chip microcomputer, and the other end of the first control resistor is at least connected with a shunt resistor through the printed copper wire and then grounded; and the source electrode of the first field effect transistor is connected with a resistor and then grounded.
Preferably, a two-core outlet valve socket is further arranged close to the water pump socket, a first core of the outlet valve socket is connected with a power supply end of the outlet valve through a cable, a welding hole of the outlet valve socket is connected with a direct-current power supply through a printed copper wire, a second core of the outlet valve socket is connected with a grounding end of the outlet valve through a cable, and the welding hole of the outlet valve socket is connected with an outlet valve control circuit through a printed copper wire; the water outlet valve control circuit and the water pump control circuit are the same in composition.
Preferably, a temperature detection socket is welded in the weak current region, a first core of the temperature detection socket is used for a cable to be electrically connected with a power supply end of the temperature sensor and supply power to the temperature sensor, and a welding hole of the temperature detection socket is electrically connected with a second direct current power supply; the second core of temperature detect socket is used for the signal output part that the cable electricity is connected into water temperature sensor, and its welding hole is connected through printed copper line electricity at the welding hole through printed copper line the first sampling pin of singlechip.
Preferably, a flowmeter socket is welded in the weak current region, a first core of the flowmeter socket is used for electrically connecting a cable with a power supply end of a flowmeter and supplying power to the flowmeter, and a welding hole of the flowmeter socket is electrically connected with a second direct current power supply; the second core of the flowmeter socket is used for being electrically connected with the metering output end of the flowmeter, a welding hole of the flowmeter socket is connected with one end of a flow limiting resistor of the flowmeter through a printed copper wire, and the other end of the flow limiting resistor of the flowmeter is connected with an input/output pin of the single chip microcomputer through a printed copper wire; the third core of the flow meter socket is grounded.
The utility model has the advantages that: the utility model discloses an internet of things circuit board for a pipeline machine, which comprises a front panel and a back panel based on the same substrate, wherein a singlechip and an internet of things communication module are welded on the back panel, and the singlechip is electrically connected with the internet of things communication module; the back panel is divided into a weak current area and a strong current area, and the single chip microcomputer and the Internet of things communication module are arranged in the weak current area; a switching power supply module is arranged in the strong current area, converts alternating current into a first direct current power supply to be output, is electrically connected with a power supply conversion circuit in the weak current area, and respectively supplies power to the single chip microcomputer and the Internet of things communication module; and a water inlet valve control circuit is also arranged in the strong electric area, is electrically connected with the singlechip and is used for controlling the opening and closing of the water inlet valve. The utility model discloses concentrated forceful electric power and light current on same circuit board, improved the space utilization of circuit board.
Drawings
Fig. 1 is a schematic diagram of a front panel in an internet of things circuit board for a pipeline machine according to the present invention;
fig. 2 is a schematic diagram of a back panel in an internet of things circuit board for a pipeline machine according to the present invention;
fig. 3 is a schematic diagram of a weak current region of an internet of things circuit board for a pipeline machine according to the present invention;
fig. 4 is a schematic diagram of a strong current region in an internet of things circuit board for a pipeline machine according to the present invention;
fig. 5 is a pin schematic diagram of a single chip microcomputer in an internet of things circuit board for a pipeline machine according to the present invention;
fig. 6 is a pin schematic diagram according to the utility model discloses a LTE module in thing networking circuit board for pipeline machine.
Detailed Description
In order to facilitate an understanding of the invention, the invention is described in more detail below with reference to the accompanying drawings and specific examples. Preferred embodiments of the present invention are shown in the drawings. This invention may, however, be embodied in many different forms and should not be construed as limited to the embodiments set forth herein. Rather, these embodiments are provided so that this disclosure will be thorough and complete.
It is to be noted that, unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.
Combine fig. 1 and fig. 2. The internet of things circuit board for the pipeline machine comprises a front panel and a back panel which are based on the same substrate, and as shown in fig. 1, a display screen X is arranged on the front panel. Four end angles of the display screen X are fixed on the front panel in a threaded connection mode and are used for displaying the working state and various parameters of the pipeline machine.
As shown in fig. 2, the back panel is divided into a weak current region Y1 and a strong current region Y2, and the position of the display screen X on the front panel corresponds to the position of the weak current region Y1 and is electrically connected to the single chip microcomputer. Still weld singlechip and thing networking communication module on the backplate, singlechip and thing networking communication module electricity are connected, and singlechip and thing networking communication module all set up in weak current region Y1.
The welding has display screen interface J1 on the backplate, and display screen interface J1 is connected with the display screen X on the front panel through the winding displacement to its welding hole is connected with the singlechip electricity through printed copper line.
The Internet of things communication module is electrically connected with the single chip microcomputer through a printed copper wire, so that the pipeline machine can be applied to public occasions such as schools, shopping malls and the like to purchase water in a code scanning mode; on the other hand, the communication module of the internet of things also realizes real-time monitoring on the pipeline machine, and is convenient for maintaining and managing the pipeline machine remotely.
Referring to fig. 3 and 4, fig. 3 is a partially enlarged view of the weak current region Y1, and fig. 4 is a partially enlarged view of the strong current region Y2. In fig. 4, a switching power supply module M is provided in the strong electric region Y2, and the switching power supply module M is an AC/DC type switching power supply module. The input end of the switching power supply module M is connected with alternating current which is 220V alternating current; the output end outputs a first direct current power supply, and the first direct current power supply is a +12V power supply. The first direct current power supply is connected with a power supply conversion circuit in a weak current area Y1 in the figure 3 through a printed copper wire and then respectively supplies power to the single chip microcomputer and the internet of things communication module.
In fig. 3, the power conversion circuit includes a chip XL1509-5V (U1 soldered to the switching power module M in fig. 3), an input pin of the chip XL1509-5V is connected to the first dc power source after being connected to the protection diode D1, an input pin of the chip XL1509-5V is further connected to the positive electrode of the polarity capacitor C1, the negative electrode of the polarity capacitor C1 is grounded, and an input pin of the chip XL1509-12V is further connected to the capacitor C3 and is grounded. The polar capacitor C1 and the capacitor C3 are arranged close to the chip XL1509-5V and play a role in filtering the input first direct current power supply.
The output pin of the chip XL1509-5V is connected with one end of a first inductor L1 welded above through a printed copper wire, and the other end of a second inductor L1 outputs +5V power and is also connected with the feedback pin of the chip XL1509-5V through the printed copper wire. The other end of the first inductor L1 is further connected to the anode of the polar capacitor C4, the anode of the polar capacitor C5, and one end of the capacitor C2, respectively, and the cathode of the polar capacitor C4, the cathode of the polar capacitor C5, and the other end of the capacitor C2 are all grounded. The polar capacitor C4, the polar capacitor C5 and the capacitor C2 play a role in filtering the output +5V power supply. Preferably, an output pin of the chip XL1509-5V is connected with the cathode of the protection diode D5, and the anode of the protection diode D5 is grounded.
The other end of the second inductor L1 is further connected with the anode of a first diode D3, the cathode of the first diode D3 is connected with the anode of a second diode D2, the cathode of the second diode D2 is connected with a resistor R1 and then outputs a second direct current power supply for supplying power to the single chip microcomputer, and the size of the second direct current power supply is + 4V. The resistor R1 is also connected with the capacitor C6 and the capacitor C7 respectively and then grounded, and plays a role in filtering the output second direct current power supply.
The cathode of the first diode D3 is also connected to the anode of the third diode D4, the cathode of the third diode D4 outputs a power supply of the internet of things communication module, and the size of the power supply of the internet of things communication module is + 4V.
In fig. 3, the single chip microcomputer is a chip STC8A4K32S2a12, the internet of things communication module includes an LTE module and a SIM card socket for installing a SIM card, and the LTE module and the SIM card socket are connected by a printed copper wire. With reference to fig. 5 and 6, fig. 5 is a schematic pin diagram of a single chip, and fig. 6 is a schematic pin diagram of an LTE module.
Preferably, a serial port read-out terminal P3.0 of the chip STC8A4K32S2a12 is connected to a collector of a transistor Q5 through a printed copper wire, an emitter of the transistor Q5 is connected to a serial port write-in terminal UART2_ TXD of the LTE module in fig. 6, a base of the transistor Q5 is connected to a resistor R40 and then connected to a pin VDD _1P8 of the LTE module in fig. 6, and the pin VDD _1P8 of the LTE module is further connected to a capacitor C13 and then grounded.
A serial port write-in end P3.1 of the chip STC8A4K32S2A12 is connected with a cathode of a diode D11 after being connected with a resistor R23 through a printed copper wire, and an anode of the diode D11 is connected with a serial port read-out end UART2_ RXD of the LTE module in the figure 6, so that serial port communication between the single chip microcomputer and the LTE module is realized.
Preferably, the power supply of the communication module of internet of things is not directly electrically connected to the power supply terminal of the LTE module, but the power supply of the communication module of internet of things is electrically connected to the source of an MOS transistor Q6 for power supply control, the gate of the MOS transistor Q6 is electrically connected to one end of a reset control current-limiting resistor R41, the other end of the reset control current-limiting resistor R41 is electrically connected to the input/output pin P7.4 of the single chip microcomputer as the power supply reset control terminal, two pull-up resistors R33 and R34 are further connected in parallel between the power supply reset control terminal and the power supply of the communication module of internet of things, and the drain of the MOS transistor Q6 is connected to the power supply terminal VBAT of the LTE module in fig. 6 as the controlled terminal of.
When the communication module works normally, the single chip microcomputer controls the MOS tube Q6 to be switched on, so that the power supply of the communication module of the Internet of things can supply power for the LTE module, and after the single chip microcomputer controls the MOS tube Q6 to be switched off, the power supply of the LTE module is switched off, then the single chip microcomputer controls the MOS tube Q6 to be switched on again, so that the power supply of the LTE module is realized, the power-on control of the LTE module can be realized again, the restarting operation of the LTE module is realized, and the use reliability of the LTE module is ensured.
Preferably, a power end of the SIM card holder is connected to the USIM _ VCC pin of the LTE module in fig. 6, and a RESET end of the SIM card holder is connected to the USIM _ RESET pin of the LTE module in fig. 6 after being connected to the capacitor R28; a clock end is connected with a resistor R35 and then is connected with a USIM _ CLK pin of the LTE module in the figure 6; the I/0 terminal is connected with a resistor R38 through a printed copper wire and then connected with a USIM _ DATA pin of the LTE module in the figure 6, and is also connected with a pull-up resistor R29 and then connected with a USIM _ VCC pin; the CD end is connected to a VDD _1P8 pin of the LTE module in the figure 6 through a printed copper wire connecting resistor R43; the CD terminal is connected to the USIM _ DET pin of the LTE module in fig. 6 through a printed copper wire connection resistor R44.
Further, in fig. 4, a water inlet valve control circuit is further disposed in the strong electric area Y2 and electrically connected to the single chip microcomputer, preferably, electrically connected to the single chip microcomputer through a printed copper wire for controlling the opening and closing of the water inlet valve.
The water inlet valve control circuit comprises a first relay K1 welded close to the switching power supply module M, and an isolation groove G for isolating strong electric interference is arranged between the first relay K1 and the switching power supply module M, so that the insulation and the anti-interference performance between the first relay K1 and the switching power supply module M are enhanced. The positive pole of the coil of the first relay K1 is connected with a first direct current power supply (+12V power supply), the negative pole is connected with the collector of a water inlet valve control triode Q3 positioned in a weak current area, the emitter of the water inlet valve control triode Q3 is grounded, and the base is electrically connected with a resistor R21 through a printed copper wire and then is connected with an input/output pin P2.1 of the single chip microcomputer; the first controlled end of the first relay K1 is connected with a zero line N of alternating current, the second controlled end is connected with a zero line JS2 of the water inlet valve, and a live wire end JS1 of the water inlet valve is connected with a live wire L of alternating current.
When the singlechip controls the water inlet valve to control the triode Q3 to be conducted, the coil of the first relay K1 is electrified, the first controlled end is contacted with the second controlled end, the zero line end of the water inlet valve is connected with the zero line N of 220V alternating current, and the water inlet valve starts to work.
Preferably, an isolation groove for isolating strong electric interference is also arranged at the welding position of the first relay K1, a coil of the first relay K1 is connected with a first direct current power supply (+12V power supply), a first controlled end is connected with a zero line of 220V alternating current, and the interference of the 220V alternating current to the 12V power supply is avoided by arranging the isolation groove on the substrate.
Furthermore, a heating control circuit connected with the heater is also arranged in the strong electric region Y2, and the heating control circuit comprises a high-voltage heating circuit and a low-voltage heating circuit. The high-voltage heating circuit comprises a second relay K2 welded close to the switching power supply module M, and an isolation groove is arranged between the second relay K2 and the switching power supply module M; the positive pole of the coil of the second relay K2 is connected with a 12V power supply, the negative pole is connected with the collector of a high-voltage control triode Q7 positioned in a weak current region, the emitter of the high-voltage control triode Q7 is grounded, and the base is connected with a resistor R46 through a printed copper wire and then is connected with an input/output pin P7.3 of the single chip microcomputer; the first controlled end of the second relay K2 is connected with a zero line N of 220V alternating current, the second controlled end is connected with a zero line end JR2 of the heater, and a fire line end JR1 of the heater is connected with a fire line L of 220V alternating current.
When the singlechip controls the high-voltage control triode Q7 to be conducted, the coil of the second relay K2 is electrified, the first controlled end is contacted with the second controlled end, the zero line end of the heater is connected with the zero line N of 220V alternating current, and the heater starts to work.
The low-voltage heating circuit comprises a third relay K3 welded close to the switching power supply module M, and an isolation groove is formed between the third relay K3 and the switching power supply module M; the positive electrode of a coil of the third relay K3 is connected with a direct current power supply (+12V), the negative electrode of the third relay K3 is connected with the collector electrode of a low-voltage control triode Q4 positioned in a weak current region, the emitter electrode of the low-voltage control triode Q4 is grounded, and the base electrode of the low-voltage control triode Q4 is connected with an input/output pin P2.0 of the single chip microcomputer after being connected with a resistor R22 through a printed copper; a first controlled end of the third relay K3 is connected with a zero line N of 220V alternating current, a second controlled end is respectively connected with anodes of two rectifier diodes (D10 and D12) through printed copper wires, and cathodes of the two rectifier diodes are connected with a zero line end JR2 of the heater.
When the singlechip controls the low-voltage control triode Q4 to be conducted, the coil of the third relay K3 is electrified, the first controlled end is contacted with the second controlled end, the zero line end of the heater is connected with the zero line N of 220V alternating current, and the heater starts to work. The 220V alternating voltage is rectified by two rectifying diodes (D10 and D12) and has the size of 170V.
Preferably, an isolation groove is also provided between the pins of the first relay K1 to the third relay K3 to prevent mutual interference between the 220V ac power and the +12V power.
Preferably, a zero-cross detection circuit is further arranged in the strong current region Y2, a live line L of 220V alternating current is connected with a resistor R6 and then connected with an anode of an optical coupler (U3 in fig. 4), a zero line N of 220V is connected with a protection diode D6 and then connected with a cathode of the optical coupler, and a resistor R8 is connected between the anode and the cathode of the optical coupler in series; the collector electrode of the optocoupler is electrically connected with a +5V power supply, the emitting electrode of the optocoupler is connected with the resistor R11 and then grounded, the base electrode of the zero-crossing detection triode Q1 is connected with the resistor R7 and then connected with the base electrode of the zero-crossing detection triode Q1, the emitting electrode of the zero-crossing detection triode Q1 is grounded, the collector electrode of the optocoupler is connected with the resistor R5 and then connected with the +5V power supply, and the collector electrode of the. The zero-crossing detection circuit is used for detecting positive cycles and negative cycles of alternating current, and outputting voltage occupying corresponding cycle proportion in a delayed manner to adjust the heating power of the heater, so that the purified water is heated at different temperatures.
Preferably, an isolation groove is also formed in the optical coupler, so that the optical coupler is prevented from being connected with an alternating current to interfere with a +5V power supply. It can be seen that in the strong current region Y2, when the component is connected to both strong current and weak current, an isolation groove is provided between the pin connected to strong current and the pin connected to weak current. When strong electricity exists near the component, the isolation is performed through the isolation groove. The isolation grooves close to each other can be communicated with each other.
Further, in fig. 3, a two-core water pump socket J2 is welded in the weak current region Y1, and the water pump socket J2 is used for connecting a water pump to pump purified water in the water tank to the water outlet. Specifically, the first core of water pump socket J2 passes through the cable and is connected with the power end of water pump, and its welding hole is through printed copper line connection 12V power, and the second core passes through the cable and is connected with the earthing terminal of water pump, and its welding hole is through printed copper line connection water pump control circuit.
The water pump control circuit comprises a first field effect transistor Q9, the drain electrode of the first field effect transistor Q9 is connected with a welding hole of a second core of the water pump socket J2 through a printed copper wire, the grid electrode of the first field effect transistor Q9 is connected with one end of a first control resistor R59, the other end of the first control resistor R59 is connected with an input/output pin P2.6 of the single chip microcomputer, the other end of the first control resistor R59 is at least connected with a shunt resistor R66 through the printed copper wire and then grounded, and is also connected with a shunt resistor R67 and then grounded; the source of the first fet Q9 is connected to a resistor R71 and then to ground. When the singlechip controls the first field effect transistor Q9 to be conducted, the grounding end of the water pump is grounded, and the water pump starts to work.
The source electrode of the first field effect transistor Q9 is also connected with one end of a resistor R62, the other end of the resistor R62 is connected with a capacitor C25 and then grounded, and the other end of the resistor R62 is also connected to a pin P0.0 of the single chip microcomputer and is used for feeding back the working state of the water pump to the single chip microcomputer, namely whether the water pump works or not.
Preferably, the drain of the first field effect transistor Q9 is further connected to the anode of a protection diode D14, the cathode of the protection diode D14 is connected to a +12V power supply, and a capacitor C20 is further disposed at two ends of the protection diode D14 to prevent the reverse connection between the power supply end and the ground in the connection process of the water pump socket J2.
Furthermore, a two-core outlet valve socket J3 is further arranged close to the water pump socket J2, the outlet valve socket J3 is used for being connected with an outlet valve, and the outlet valve is arranged at the water outlet of the pipeline machine and used for controlling the outflow of purified water. The first core of the water outlet valve socket J3 is connected with the power supply end of the water outlet valve through a cable, the welding hole of the water outlet valve socket J3 is connected with a 12V power supply through a printed copper wire, the second core is connected with the grounding end of the water outlet valve through a cable, and the welding hole of the water outlet valve socket J3 is connected with the water outlet valve control circuit through a printed copper wire; the water outlet valve control circuit is the same as the water pump control circuit.
The water outlet valve control circuit comprises a field effect transistor Q11, the drain electrode of the field effect transistor Q11 is connected with a welding hole of a second core of the water outlet valve socket J3 through a printed copper wire, the grid electrode of the field effect transistor Q11 is connected with one end of a control resistor R60, the other end of the control resistor R60 is connected with an input/output pin P3.6 of the single chip microcomputer, the other end of the control resistor R60 is at least connected with a shunt resistor R68 through the printed copper wire and then grounded, and the other end of the control resistor R69 is also connected with; the source of the field effect transistor Q11 is connected to a resistor R72 and then to ground. When the field effect transistor Q11 is switched on under the control of the single chip microcomputer, the grounding end of the water outlet valve is grounded, and the water outlet valve starts to work.
The source electrode of the field effect transistor Q11 is also connected with one end of a resistor R63, the other end of the resistor R63 is connected with a capacitor C26 and then grounded, and the other end of the resistor R63 is also connected with a pin P0.2 of the single chip microcomputer and is used for feeding back the working state of the water outlet valve to the single chip microcomputer, namely whether the water outlet valve works or not.
Preferably, the drain of the field effect transistor Q11 is further connected to the anode of the protection diode D15, the cathode of the protection diode D15 is connected to a +12V power supply, and a capacitor C21 is further disposed at two ends of the protection diode D15 to prevent the reverse connection between the power supply end and the ground in the connection process of the outlet valve socket J3.
Furthermore, a two-core liquid level switch socket J4 is further arranged close to the water outlet valve socket J3, and the liquid level switch socket J4 is connected with a liquid level switch and used for detecting the low water level in the water tank of the pipeline machine, namely whether water exists in the water tank.
Further, a two-pin buzzer B1 is welded in the weak current area, and a buzzer B1 is positioned at the upper right side in the weak current area. The welding hole of a first pin of a buzzer B1 is electrically connected with one end of a power supply current-limiting resistor R53 through a printed copper wire, the other end of the power supply current-limiting resistor R53 is connected with a +12V power supply through the printed copper wire, the welding hole of a second pin of the buzzer B1 is electrically connected with a collector of an alarm control triode Q10 through the printed copper wire, an emitter is also grounded, a base is connected with one end of a first alarm voltage-dividing resistor R65 through the printed copper wire, and the other end of the first alarm voltage-dividing resistor R65 is connected with an input/output pin P7.5 of the singlechip; the base of the alarm control triode Q10 is also connected with one end of a second alarm divider resistor R74 through a printed copper wire, and the other end of the second alarm divider resistor R74 is grounded. When the pipeline machine is lack of water, the buzzer can sound to prompt the user to replenish water.
Furthermore, a temperature detection socket J5 is welded in the weak current region, a first core of the temperature detection socket J5 is used for a cable to be electrically connected with a power supply end of the temperature sensor and supply power to the power supply end, and a welding hole of the temperature detection socket is connected with a +4V power supply through a printed copper wire; the second core of the temperature detection socket J5 is used for the cable to be electrically connected with the signal output end of the water inlet temperature sensor, and the welding hole of the temperature detection socket is electrically connected with the first sampling pin P1.7 of the singlechip through a printed copper wire at the welding hole through the printed copper wire.
One end of the temperature detection load resistor R58 is also electrically connected through a printed copper wire, and the other end of the temperature detection load resistor R58 is grounded. Preferably, the second core of the temperature detection socket J5 is connected to the third sampling pin P1.7 of the single chip microcomputer after being connected to the resistor R54, and the third sampling pin P1.7 of the single chip microcomputer is also connected to the capacitor C22 and then grounded. The temperature sensor detects the temperature of the hot water and feeds the temperature back to the single chip microcomputer, so that the single chip microcomputer can conveniently control the power of the heater, and the purified water can be heated at different temperatures.
Furthermore, a water outlet indicator lamp socket J6 is welded in the weak current region, a first core of the water outlet indicator lamp socket J6 is connected with a power supply end of a water outlet indicator lamp, and a welding hole of the water outlet indicator lamp socket is connected with a +4V power supply; the second core is connected with the grounding end of the water outlet indicator lamp, the welding hole of the second core is connected with the collector electrode of the triode Q2, the emitter electrode of the triode Q2 is grounded, and the base electrode of the triode Q2 is connected with the resistor R10 and then is connected to the pin P3.5 of the single chip microcomputer. When purified water flows out of the water outlet, the triode Q2 is controlled by the single chip microcomputer to be conducted, and the water outlet indicator lamp gives out light for prompting.
Further, a flowmeter socket J7 is welded in the weak current region Y1, a first core of the flowmeter socket J7 is used for electrically connecting a power supply end of the flowmeter through a cable and supplying power to the power supply end, and a welding hole of the flowmeter socket J7 is connected with a +4V power supply through a printed copper wire; the second core of the flow meter socket J7 is used for electrically connecting the metering output end of the flow meter, the welding hole of the flow meter socket J7 is connected with one end of a flow meter current-limiting resistor R73 through a printed copper wire, the other end of the flow meter current-limiting resistor R73 is connected with a +4V power supply after being connected with a resistor R61, and the other end of the flow meter current-limiting resistor R73 is connected with a pin P3.4 of the single chip microcomputer through a printed; the third core of the flow meter socket is grounded. The singlechip can monitor the water yield through the flowmeter, and is convenient for charging.
Preferably, the first core of the flow meter socket J7 is further connected to a power supply detection resistor R64 and then connected to a pin P1.6 of the single chip microcomputer, so as to detect whether the flow meter is in a power supply state. When the flowmeter is in a power supply state, a pin P1.6 of the singlechip is at a high level, and when the flowmeter is in a power off state, the pin is at a low level.
Further, an ambient temperature detection socket J8 is welded in the weak current region Y1, and an ambient temperature detection socket J8 is used for connecting an ambient temperature sensor for monitoring the temperature in the pipeline machine.
Furthermore, a TDS detection socket J9 is welded in the weak current region Y1, a first core of the TDS detection socket J9 is used for cable electric connection with a power supply end of the TDS sensor, a welding hole of the TDS detection socket J9 is electrically connected with a collector electrode of a first power-on control triode Q8 arranged close to the TDS detection socket J9 through a printed copper wire, one end of a first load resistor R49 is also electrically connected through the printed copper wire, and the other end of the first load resistor R49 is grounded; an emitting electrode of the first power-on control triode Q8 is electrically connected with a +4V power supply through a printed copper wire, a base electrode of the first power-on control triode Q8 is connected with one end of a first control resistor R45, and the other end of the first control resistor R45 is electrically connected with one pin P6.3 of the single chip microcomputer through the printed copper wire; the second core of TDS detection socket is used for the sampling end of cable electricity connection TDS sensor, and its welding hole inserts the second sampling pin P1.4 of singlechip behind printed copper line electric connection resistance R50, still connects the one end of second load resistance R52, and second load resistance R52's the other end ground connection through printed copper line electricity.
A key socket J10 connected to a key circuit board is soldered in the weak current region Y1, and a user can perform various operations on the wire bonder through the key circuit board.
A card swiping induction socket J11 connected with a card swiping induction circuit board is welded in the weak current area Y1, and the card swiping induction circuit board can be an existing radio frequency identification circuit board and is used for inducing an induction card.
It can be seen that when the pipeline machine is applied to families and offices, water can be drunk in a direct water taking mode. When using in school, market etc, both can sweep the form of sign indicating number through the thing networking and purchase water, also can purchase water through the form of punching the card, satisfied multiple application scene.
Preferably, the size of the internet of things circuit board for the pipeline machine is 198mm 80mm, and the internet of things circuit board has the characteristic of small size.
Therefore, the utility model discloses an internet of things circuit board for a pipeline machine, which comprises a front panel and a back panel based on the same substrate, wherein a single chip microcomputer and an internet of things communication module are welded on the back panel and are electrically connected; the back panel is divided into a weak current area and a strong current area, and the single chip microcomputer and the Internet of things communication module are arranged in the weak current area; a switching power supply module is arranged in the strong current area, converts alternating current into a first direct current power supply to be output, is electrically connected with a power supply conversion circuit in the weak current area, and respectively supplies power to the single chip microcomputer and the Internet of things communication module; and a water inlet valve control circuit is also arranged in the strong electric area, is electrically connected with the singlechip and is used for controlling the opening and closing of the water inlet valve. The utility model discloses concentrated forceful electric power and light current on same circuit board, improved the space utilization of circuit board.
The above description is only an embodiment of the present invention, and not intended to limit the scope of the present invention, and all equivalent structural changes made by using the contents of the present specification and the drawings, or applied directly or indirectly to other related technical fields, are included in the scope of the present invention.
Claims (10)
1. The utility model provides a thing networking circuit board for pipeline machine which characterized in that: the solar cell comprises a front panel and a back panel based on the same substrate, wherein a single chip microcomputer and an Internet of things communication module are welded on the back panel and are electrically connected;
the back panel is divided into a weak current area and a strong current area, and the single chip microcomputer and the Internet of things communication module are arranged in the weak current area; a switching power supply module is arranged in the strong current area, converts alternating current into a first direct current power supply for output, is electrically connected with a power supply conversion circuit in the weak current area, and respectively supplies power to the single chip microcomputer and the Internet of things communication module; and a water inlet valve control circuit is also arranged in the strong electric area, is electrically connected with the singlechip and is used for controlling the opening and closing of the water inlet valve.
2. The internet of things circuit board for pipeline machine of claim 1, wherein: the water inlet valve control circuit comprises a first relay welded close to the switching power supply module, and an isolation groove for isolating strong current interference is arranged between the first relay and the switching power supply module;
the positive electrode of a coil of the first relay is connected with a first direct-current power supply, the negative electrode of the coil of the first relay is connected with the collector electrode of the water inlet valve control triode, the emitter electrode of the water inlet valve control triode is grounded, and the base electrode of the water inlet valve control triode is electrically connected with a resistor and then is connected with an input/output pin of the single chip microcomputer; the first controlled end of the first relay is connected with a zero line of alternating current, the second controlled end of the first relay is connected with a zero line end of the water inlet valve, and a fire wire end of the water inlet valve is connected with a fire wire of alternating current.
3. The internet of things circuit board for pipeline machine of claim 2, characterized in that: the high-voltage heating circuit is also arranged in the strong current area and is connected with the heater, the high-voltage heating circuit is also electrically connected with the single chip microcomputer and comprises a second relay welded close to the switching power supply module, and an isolation groove for isolating strong current interference is arranged between the second relay and the switching power supply module;
the positive electrode of a coil of the second relay is connected with a first direct-current power supply, the negative electrode of the coil of the second relay is connected with the collector electrode of the high-voltage control triode, the emitter electrode of the high-voltage control triode is grounded, and the base electrode of the high-voltage control triode is electrically connected with a resistor and then is connected with an input/output pin of the single chip microcomputer; the first controlled end of the second relay is connected with a zero line of alternating current, the second controlled end of the second relay is connected with a zero line end of the heater, and a live wire end of the heater is connected with a live wire of alternating current.
4. The internet of things circuit board for pipeline machine of claim 1, wherein: the front panel is provided with a display screen, and the position of the display screen corresponds to the position of the weak current area and is also electrically connected with the singlechip.
5. The Internet of things circuit board for pipeline machines of claim 4, wherein: the single chip microcomputer is a chip STC8A4K32S2A12, the Internet of things communication module comprises an LTE module and an SIM card holder for installing an SIM card, and the LTE module is electrically connected with the SIM card holder.
6. The Internet of things circuit board for pipeline machines of claim 5, wherein: and a card swiping induction socket connected with the card swiping induction circuit board is welded in the weak current area.
7. The Internet of things circuit board for pipeline machines of claim 6, wherein: a water pump socket with two cores is welded in the weak current area, the first core of the water pump socket is connected with the power supply end of the water pump through a cable, the welding hole of the water pump socket is connected with a direct current power supply through a printed copper wire, the second core is connected with the grounding end of the water pump through a cable, and the welding hole of the water pump socket is connected with a water pump control circuit through a printed copper wire; the water pump control circuit comprises a first field effect transistor, a drain electrode of the first field effect transistor is connected with a welding hole of a second core of the water pump socket through a printed copper wire, a grid electrode of the first field effect transistor is connected with one end of a first control resistor, the other end of the first control resistor is connected with an input/output pin of the single chip microcomputer, and the other end of the first control resistor is at least connected with a shunt resistor through the printed copper wire and then grounded; and the source electrode of the first field effect transistor is connected with a resistor and then grounded.
8. The internet of things circuit board for pipeline machine of claim 7, wherein: a water outlet valve socket with two cores is arranged close to the water pump socket, the first core of the water outlet valve socket is connected with the power supply end of the water outlet valve through a cable, the welding hole of the water outlet valve socket is connected with a direct current power supply through a printed copper wire, the second core of the water outlet valve socket is connected with the grounding end of the water outlet valve through a cable, and the welding hole of the water outlet valve socket is connected with a water outlet valve control circuit through a printed copper wire; the water outlet valve control circuit and the water pump control circuit are the same in composition.
9. The internet of things circuit board for pipeline machine of claim 8, wherein: a temperature detection socket is welded in the weak current area, a first core of the temperature detection socket is used for electrically connecting a cable with a power end of the temperature sensor and supplying power to the temperature sensor, and a welding hole of the temperature detection socket is electrically connected with a second direct current power supply; the second core of temperature detect socket is used for the signal output part that the cable electricity is connected into water temperature sensor, and its welding hole is connected through printed copper line electricity at the welding hole through printed copper line the first sampling pin of singlechip.
10. The internet of things circuit board for pipeline machine of claim 9, wherein: a flowmeter socket is welded in the weak current area, a first core of the flowmeter socket is used for electrically connecting a cable with a power supply end of a flowmeter and supplying power to the power supply end, and a welding hole of the flowmeter socket is electrically connected with a second direct current power supply; the second core of the flowmeter socket is used for being electrically connected with the metering output end of the flowmeter, a welding hole of the flowmeter socket is connected with one end of a flow limiting resistor of the flowmeter through a printed copper wire, and the other end of the flow limiting resistor of the flowmeter is connected with an input/output pin of the single chip microcomputer through a printed copper wire; the third core of the flow meter socket is grounded.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021283265.4U CN212259438U (en) | 2020-07-04 | 2020-07-04 | A thing networking circuit board for pipeline machine |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202021283265.4U CN212259438U (en) | 2020-07-04 | 2020-07-04 | A thing networking circuit board for pipeline machine |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN212259438U true CN212259438U (en) | 2020-12-29 |
Family
ID=73979452
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202021283265.4U Active CN212259438U (en) | 2020-07-04 | 2020-07-04 | A thing networking circuit board for pipeline machine |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN212259438U (en) |
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2020
- 2020-07-04 CN CN202021283265.4U patent/CN212259438U/en active Active
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