CN210719288U - Gas meter wireless valve device utilizing magnetic induction - Google Patents
Gas meter wireless valve device utilizing magnetic induction Download PDFInfo
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- CN210719288U CN210719288U CN201922035976.3U CN201922035976U CN210719288U CN 210719288 U CN210719288 U CN 210719288U CN 201922035976 U CN201922035976 U CN 201922035976U CN 210719288 U CN210719288 U CN 210719288U
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Abstract
The utility model discloses a gas meter wireless valve device utilizing magnetic induction, which comprises a sending circuit board and a receiving circuit board, wherein the sending circuit board comprises a sending circuit and a magnetic induction sending coil, and the receiving circuit board comprises a magnetic induction receiving coil, a receiving circuit and a control circuit; the transmitting circuit is respectively connected with the master control circuit board and the magnetic induction transmitting coil, the receiving circuit is respectively connected with the magnetic induction receiving coil and the control circuit, the control circuit is connected with a motor valve of the gas meter, the transmitting circuit board is connected with a lower housing of the gas meter, and the receiving circuit board is connected with a shell of the gas meter.
Description
Technical Field
The utility model belongs to the technical field of gas valve device and specifically relates to an utilize wireless valve device of magnetic induction's gas table.
Background
With the rise of the internet of things, the control of edge equipment such as electric meters, gas meters and sensors is gradually developed. The diaphragm type gas table of using at present reforms transform through the table, utilizes the hole that the gas table shell stayed, connects the motor valve in the table and the outer master control circuit board of table through the wire to reach the opening and closing of master control circuit board to the motor valve, still have some shortcomings: 1. the gas meter shell is provided with holes, so that the gas tightness of the gas meter can be influenced, and the possibility of leakage is increased; 2. the main control circuit board and the motor valve are connected by wires, and a strict and complicated wiring process is required to prevent the wires from influencing the circuit structure; 3. the wire connection may affect the gear rotation of the housing part of the gas meter, thereby affecting the charging function; 4. the lead connection has a plurality of production processes, and the production efficiency is reduced. At present, the gas meter is connected with a main control circuit board and a motor valve through a lead, and the defects are difficult to avoid.
Disclosure of Invention
For solving the not enough of prior art, realize simplifying technology, reducing the influence, the purpose of raising the efficiency, the utility model discloses a following technical scheme:
a wireless valve device of a gas meter by utilizing magnetic induction comprises a sending circuit board and a receiving circuit board, wherein the sending circuit board comprises a sending circuit and a magnetic induction sending coil, and the receiving circuit board comprises a magnetic induction receiving coil, a receiving circuit and a control circuit; the transmitting circuit is respectively connected with the master control circuit board and the magnetic induction transmitting coil, the receiving circuit is respectively connected with the magnetic induction receiving coil and the control circuit, the control circuit is connected with a motor valve of the gas meter, the transmitting circuit board is connected with a lower housing of the gas meter, and the receiving circuit board is connected with a shell of the gas meter. The main control circuit board provides a power source for the transmitting circuit; the main control circuit board and the motor valve are not required to be directly connected by a wire, so that the wiring process is simplified, and the influence of the wire on the circuit structure is prevented; the influence of the wire on the gear rotation of the part of the gas meter shell is prevented, so that the charging function is influenced; the production process steps generated under the connection of the wires are reduced, and the production efficiency is improved.
The sending circuit comprises a single chip microcomputer, a voltage reduction voltage stabilizer, a driving circuit and a voltage divider, wherein the single chip microcomputer is respectively connected with the voltage reduction voltage stabilizer, the driving circuit and the voltage divider. The driving circuit can provide high-power and high-density current; the voltage divider is connected to the digital demodulation interface for distinguishing the current flow direction. The single chip microcomputer is a BQ500212A chip.
The receiving circuit comprises a single chip microcomputer, and the single chip microcomputer integrates a low-impedance synchronous rectifier, a low-voltage-drop voltage stabilizer, a digital controller and a charger controller. The single chip microcomputer is a BQ51051B chip.
The magnetic induction sending coil and the magnetic induction receiving coil are on the same axis. And a good electromagnetic induction effect is ensured.
The distance between the magnetic induction sending coil and the magnetic induction receiving coil is not more than 2 centimeters. And a good electromagnetic induction effect is ensured.
The utility model discloses an advantage and beneficial effect lie in:
through the magnetic induction connection of the utility model, the original wiring mode is replaced, the wiring process is simplified, and the influence of the wire on the circuit structure is prevented; the influence of the wire on the gear rotation of the part of the gas meter shell is prevented, so that the charging function is influenced; the production process steps generated under the connection of the wires are reduced, and the production efficiency is improved.
Drawings
Fig. 1 is a schematic diagram of the present invention.
Fig. 2 is a schematic front view of the present invention.
Fig. 3 is a right side schematic sectional view of the present invention.
Fig. 4 is a circuit diagram of the present invention.
Fig. 5 is a circuit diagram of the receiver of the present invention.
In the figure: 1. a transmitting circuit board; 2. receiving a circuit board; 3. a lower housing shell; 4. a gas meter housing; 5. a magnetic induction transmitting coil; 6. a main control circuit board; 7. a wire; 8. a motor valve; 9. a transmission circuit; 10. a receiving circuit; 11. a magnetic induction receiving coil; 12. a control circuit.
Detailed Description
The present invention will be described in detail with reference to the accompanying drawings and specific embodiments.
As shown in fig. 1, 2, and 3, a wireless valve device for a gas meter using magnetic induction includes a transmitting circuit board 1 and a receiving circuit board 2, where the transmitting circuit board 1 includes a transmitting circuit 9 and a magnetic induction transmitting COIL 5 (TX COIL), and the receiving circuit board 2 includes a magnetic induction receiving COIL 11 (RX COIL), a receiving circuit 10, and a control circuit 12; the transmitting circuit 9 is respectively connected with the main control circuit board 6 and the magnetic induction transmitting coil 5, the main control circuit board 6 provides a power source for the transmitting circuit 9, the receiving circuit 10 is respectively connected with the magnetic induction receiving coil 11 and the control circuit 12, the control circuit 12 is connected with a motor valve interface reserved in the gas meter shell 4 by a lead 7, the motor valve interface is connected with a motor valve 8 in the gas meter, the transmitting circuit board 1 is connected with the lower housing 3 of the gas meter by screws, the receiving circuit board 2 is connected with a valve binding post of the gas meter, the magnetic induction sending coil 5 and the magnetic induction receiving coil 11 are on the same axis, keep parallel and perpendicular to the gas meter shell 4, the distance is not more than 2 cm, and no metal object can be shielded between the two coils, so that a good electromagnetic induction effect is ensured.
The main control circuit board 6 and the motor valve 8 of the whole device are not required to be directly connected by a wire, so that the wiring process is simplified, and the influence of the wire on the circuit structure is prevented; the influence of the wire on the gear rotation of the part of the gas meter shell is prevented, so that the charging function is influenced; the production process steps generated under the connection of the wires are reduced, and the production efficiency is improved.
As shown in fig. 4, the transmitting circuit 9 includes a BQ500212A chip, a Low dropout regulator (LDO), a driver circuit (GateDriver), and a Voltage Divider (COMM Voltage Divider), and the BQ500212A chip is respectively connected to the LDO, the driver circuit, and the Voltage Divider. The voltage reduction voltage stabilizer converts 5V voltage into 3.3V voltage; the driving circuit can provide high-power and high-density current; the voltage divider is connected to the digital demodulation interface for distinguishing the current flow direction.
As shown in fig. 5, the receiving circuit 10 includes a BQ51051B chip, and the BQ51051B chip integrates a low impedance synchronous rectifier, a low dropout voltage regulator, a digital control, and a charger controller.
The main control circuit board 6 provides direct current to the sending circuit 9, the sending circuit 9 converts the direct current into alternating current, the alternating current generates change of magnetic flux through the magnetic induction sending coil 5, the magnetic flux change enables the magnetic induction receiving coil 11 to generate induced current, the receiving circuit 10 converts the received induced current from the alternating current into the direct current, voltage is stabilized and supplied to the control circuit 12, and the control circuit 12 controls the opening and closing of the motor valve 8.
The BQ500212A and the BQ51051B chips are used to support the Wireless charging standard, i.e., QI protocol, proposed by Wireless Power Consortium (WPC), which specifies the communication modes and contents of the transmitter (power supply device) and the receiver (power supply receiving device), such as how the transmitter identifies the receiving device, the information of the receiving device (manufacturer information, device model, received power, etc.), when to end the radio transmission, and so on.
At the beginning of transmission, verified data are communicated, and the data conform to QI protocol, and only after verification is passed, power transmission can be carried out, so that external interference (such as foreign body interference and electromagnetic interference) is prevented. The authentication information is as follows:
1) when the power is switched on, the receiving circuit board 2 sends verification information, the sending circuit board 1 receives the information and replies the information, and the reply information received by the receiving circuit board 2 is called a response packet.
2) The response packet includes an ACK response packet and a NAK response packet. The ACK response packet is data of which more than ten are all 1; the NAK response packet is data of more than ten all 0 s. If the receiving circuit board 2 receives the ACK response packet, the verification is passed; if receiving board 2 receives the NAK response packet, receiving board 2 will continue to send verification information to sending board 1.
The control circuit 12 obtains the information received by the receiving circuit board 2, and the data obtained by analyzing the information has two situations:
1) if 1 ACK response packet is found, the electromechanical valve 8 is opened.
2) Finding 3 NAK response packets and 1 ACK response packet, the electromechanical valve 8 is closed.
After the motor valve 8 is opened or closed, the control circuit 12 allows the receiving circuit board 2 to reply an ACK response packet to the sending circuit board 1, the sending circuit board 1 feeds back the ACK response packet to the main control circuit board 6, and the main control circuit board 6 turns off the power supply.
Claims (7)
1. A wireless valve device of a gas meter by utilizing magnetic induction comprises a sending circuit board (1) and a receiving circuit board (2), and is characterized in that the sending circuit board (1) comprises a sending circuit (9) and a magnetic induction sending coil (5), and the receiving circuit board (2) comprises a magnetic induction receiving coil (11), a receiving circuit (10) and a control circuit (12); the gas meter is characterized in that the sending circuit (9) is respectively connected with the main control circuit board (6) and the magnetic induction sending coil (5), the receiving circuit (10) is respectively connected with the magnetic induction receiving coil (11) and the control circuit (12), the control circuit (12) is connected with a motor valve (8) of the gas meter, the sending circuit board (1) is connected with a lower housing (3) of the gas meter, and the receiving circuit board (2) is connected with a gas meter housing (4).
2. The wireless valve device for the gas meter utilizing the magnetic induction as claimed in claim 1, wherein the sending circuit (9) comprises a single chip microcomputer, a step-down voltage stabilizer, a driving circuit and a voltage divider, and the single chip microcomputer is respectively connected with the step-down voltage stabilizer, the driving circuit and the voltage divider.
3. The wireless valve device for gas meters by using magnetic induction as claimed in claim 2, wherein the single chip microcomputer is a BQ500212A chip.
4. The wireless valve device for the gas meter utilizing the magnetic induction as claimed in claim 1, wherein the receiving circuit (10) comprises a single chip microcomputer, and the single chip microcomputer integrates a low impedance synchronous rectifier, a low voltage drop voltage stabilizer, a digital control and a charger controller.
5. The wireless valve device for gas meter using magnetic induction as claimed in claim 4, wherein the single chip microcomputer is a BQ51051B chip.
6. The wireless valve device for gas meter using magnetic induction according to claim 1, wherein the magnetic induction transmitting coil (5) and the magnetic induction receiving coil (11) are on the same axis.
7. The wireless valve device for gas meter using magnetic induction according to claim 1, wherein the distance between the magnetic induction transmitting coil (5) and the magnetic induction receiving coil (11) is not more than 2 cm.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922035976.3U CN210719288U (en) | 2019-11-22 | 2019-11-22 | Gas meter wireless valve device utilizing magnetic induction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201922035976.3U CN210719288U (en) | 2019-11-22 | 2019-11-22 | Gas meter wireless valve device utilizing magnetic induction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210719288U true CN210719288U (en) | 2020-06-09 |
Family
ID=70937764
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201922035976.3U Active CN210719288U (en) | 2019-11-22 | 2019-11-22 | Gas meter wireless valve device utilizing magnetic induction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN210719288U (en) |
-
2019
- 2019-11-22 CN CN201922035976.3U patent/CN210719288U/en active Active
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