Bluetooth socket electronic assembly with metering function
By using Bluetooth technology in smart sockets combined with power metering modules and relay control modules, the high power consumption problem caused by Wi-Fi technology is solved, low power consumption and intelligent control are achieved, suitable for a variety of application scenarios, and production costs are reduced .
Patent Information
- Application Number
- CN202420013594.9
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-01-04
- Publication Date
- 2024-12-13
- Estimated Expiration
- 2034-01-04
AI Technical Summary
The existing smart sockets adopt Wi-Fi technology to cause high power consumption and increased production costs, which are not conducive to energy conservation and environmental protection.
Design a Bluetooth socket electronic component with metering, including sockets, step-down power modules, power metering modules, Bluetooth control modules and relay control modules, and conduct power metering through voltage signal sampling and current sampling circuits, combined with Bluetooth wireless communication control relays, Achieve low power consumption and intelligent control.
It realizes intelligent control with low power consumption, reduces production costs, and provides manual and automatic control methods. It is suitable for a variety of practical application scenarios, protects microcontrollers and displays product status.
Smart Images
Figure CN222168862U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a Bluetooth socket circuit, in particular to a Bluetooth socket electronic component with metering. Background Art
[0002] With the advancement of technology, people's demand for smart homes is growing. Among them, sockets are the entrance to household electricity, and their intelligence is an important part of smart homes. Most existing smart sockets use Wi-Fi technology for communication, but Wi-Fi requires continuous power supply to keep its communication module online, which leads to high power consumption and is not conducive to energy saving and environmental protection. In addition, the integration of Wi-Fi modules also increases the production cost of smart sockets. Therefore, we need a new technical solution to solve this problem. Summary of the invention
[0003] The utility model aims to provide a Bluetooth socket electronic component with metering function.
[0004] In order to achieve the above-mentioned purpose, the utility model is implemented according to the following technical scheme:
[0005] The utility model comprises a socket and a voltage input end, wherein a step-down power supply module, an electric energy metering module, a Bluetooth control module and a relay control module are arranged in the socket, wherein the voltage input end is connected with the input end of the step-down power supply module, an electric energy metering module is arranged on the step-down power supply module, and the electric energy metering module comprises a voltage signal sampling circuit and a current sampling signal circuit, the power output end of the step-down power supply module is connected with the power input end of the Bluetooth control module, the Bluetooth control module is wirelessly connected with a control device of an external device, the output control end of the Bluetooth control module is connected with the input end of the relay control module, and the suction switch of the relay control module is connected with the socket.
[0006] Furthermore, the voltage input terminal is connected to the voltage dividing resistor R17, which is then connected in series to R18, R19, R20, and R21, and then connected to the 3rd pin of U4. The filter capacitor C14 is connected to the 3rd pin of U4 to form a voltage signal sampling circuit.
[0007] Furthermore, the relay switch and the current sampling resistor R14 are connected in series with resistors R15 and R16 to pins 1 and 2 of the metering chip U4 respectively, and capacitors C12 and C13 are used for filtering to form a current sampling signal circuit.
[0008] Further, the relay control module includes a relay JD1, a first transistor Q1, and a second transistor Q2. The first end of the relay JD1 is connected to the collector of the first transistor Q1, the emitter of the first transistor Q1 is grounded, the base of the first transistor Q1 is connected to the first pin of the single-chip computer U7, the second end of the relay JD1 is connected to the collector of the second transistor Q2, the emitter of the second transistor Q2 is grounded, the base of the second transistor Q1 is connected to the second pin of the single-chip computer U7, the suction switch of the relay JD1 is used to control the on and off of the socket, and the third diode D3 and the fourth diode D4 are respectively arranged in parallel at both ends of the relay JD1.
[0009] The beneficial effects of the utility model are:
[0010] This circuit of the utility model adopts an independent pin of the single-chip microcomputer to control whether the total voltage of the battery pack is collected. At the same time, there is a manual control method, which can effectively protect the single-chip microcomputer, can perform active control, can set manual control and automatic control, and can cope with more practical application scenarios. BRIEF DESCRIPTION OF THE DRAWINGS
[0011] Figure 1 It is a circuit diagram of the utility model; DETAILED DESCRIPTION
[0012] The present invention will be further described below in conjunction with the accompanying drawings and specific embodiments. The schematic embodiments and descriptions of the present invention are used to explain the present invention but are not intended to limit the present invention.
[0013] In this embodiment, a socket and a voltage input terminal are included, wherein a step-down power supply module, an electric energy metering module, a Bluetooth control module and a relay control module are arranged in the socket, wherein the voltage input terminal is connected to the input terminal of the step-down power supply module, an electric energy metering module is arranged on the step-down power supply module, and the electric energy metering module includes a voltage signal sampling circuit and a current sampling signal circuit, wherein the power output terminal of the step-down power supply module is connected to the power input terminal of the Bluetooth control module, the Bluetooth control module is wirelessly connected to the control device of the peripheral device, the output control terminal of the Bluetooth control module is connected to the input terminal of the relay control module, and the suction switch of the relay control module is connected to the socket.
[0014] The voltage input terminal is connected to the voltage dividing resistor R17, which is then connected in series with R18, R19, R20, and R21, and then connected to the 3rd pin of U4. The filter capacitor C14 is connected to the 3rd pin of U4 to form a voltage signal sampling circuit.
[0015] The relay switch and the current sampling resistor R14 are connected in series with resistors R15 and R16 to pins 1 and 2 of the metering chip U4 respectively. Capacitors C12 and C13 are used for filtering to form a current sampling signal circuit.
[0016] The relay control module includes a relay JD1, a first transistor Q1, and a second transistor Q2. The first end of the relay JD1 is connected to the collector of the first transistor Q1, the emitter of the first transistor Q1 is grounded, the base of the first transistor Q1 is connected to the first pin of the single-chip computer U7, the second end of the relay JD1 is connected to the collector of the second transistor Q2, the emitter of the second transistor Q2 is grounded, and the base of the second transistor Q1 is connected to the second pin of the single-chip computer U7. The suction switch of the relay JD1 is used to control the on and off of the socket. The two ends of the relay JD1 are respectively connected in parallel with a third diode D3 and a fourth diode D4.
[0017] The voltage input end is connected to the input end of the π-type filter circuit, the output end of the π-type filter circuit is connected to the input end of the first power chip U1, the output end of the power chip U1 is connected to the input end of the second power chip U1, and the π-type filter circuit includes a first electrolytic capacitor C1, a second electrolytic capacitor C2 and a first inductor L1.
[0018] AC 220V voltage is connected to the rectifier diode D1 through the protection device fuse F1, varistor RV1, and I-shaped inductor L4, and then to the π-type filter circuit composed of electrolytic capacitors C1, C2 and inductor L1, connected to the filter capacitor C3 and then to the 5th, 6th, 7th and 8th pins of the power chip U1, connected to the step-down resistors R1 and R2 to the 2nd pin of U1, and supplies power to U1. Capacitor C4 is connected to the 2nd and 4th pins of U1 for filtering. The current feedback resistor R6 is connected to the 3rd and 4th pins of U1, and the voltage feedback resistors R4 and R 5 is connected to pin 1 of U1, R4 is connected to the oscillation inductor L3, resistor R7 and capacitor C5 are connected in parallel with diode D3 to L3 for absorption protection, filter capacitors C6, C7 and resistor R8 are connected to L3 to stabilize the voltage at 12V, and then connected to pins 2 and 5 of the power chip U2, resistors R9, R10, R11 and capacitor C10 are connected to pin 5 of U2 for voltage feedback, pin 3 of U2 is connected to the oscillation inductor L2 and then to filter capacitors C8 and C9 to stabilize the output voltage at 3.3V, which supplies power to the subsequent circuits.
[0019] In the electric energy metering module, the relay switch is connected to the current sampling resistor R14, and then the resistors R15 and R16 are connected in series to the 1st and 2nd pins of the metering chip U4 respectively. The capacitors C12 and C13 are used for filtering to form a current sampling signal circuit;
[0020] The voltage input L is connected to the voltage divider resistor R17 and then connected in series to R18, R19, R20, and R21 and then connected to the 3rd pin of U4. The filter capacitor C14 is connected to the 3rd pin of U4 to form a voltage signal sampling circuit.
[0021] The 3.3V voltage of the power module is connected to pin 8 of U4 to power the IC, and C11 is the power filter; pin 16 of the Bluetooth control module U7 is connected to pin 7 of U3 to provide power value, and pin 18 of U7 is connected to pin 6 of U3 to provide voltage and current values.
[0022] In the Bluetooth control module, the 3.3V power supply is connected to the 19th pin of the Bluetooth control module U7 to power U5, the 20th pin of U7 is grounded, C24 and C25 are connected to the 19th and 20th pins of U7 for filtering, the 3.3V power supply is connected in series with the resistor R34 to the light-emitting diodes LED1 and LED2 and then to the 8th and 14th pins of U7 respectively to indicate the overall status of the product, the 3.3V power supply is connected in series with the resistor R28 to the push switch K1 and the resistor R36 and then to the ground, K1 is connected to the 11th pin of U7, when K1 is turned on, the 11th pin of U7 has a high level input, the reset switch is connected to the push switch K2 and the resistor R35 through the 3.3V power supply and then to the ground, K2 is connected to the 17th pin of U7.
[0023] In the relay control module, when the 2nd pin of the Bluetooth control module U7 outputs a high-level signal, the transistor Q2 is turned on through the resistor R9, the relay JD1 is energized, and the AC 220V voltage can provide voltage to the externally connected load. When the 1st pin of the microcontroller U7 outputs a high-level signal, the transistor Q1 is turned on through the resistor R3, the relay JD1 is disconnected, there is no voltage output at the load end, and the diodes D3 and D4 play a role in protecting the relay coil.
[0024] The technical solution of the present utility model is not limited to the above-mentioned specific embodiments, and all technical variations made according to the technical solution of the present utility model fall within the protection scope of the present utility model.
Claims
1. A Bluetooth socket electronic component with metering, comprising a socket and a voltage input terminal, characterized in that: A step-down power supply module, an electric energy metering module, a Bluetooth control module and a relay control module are arranged in the socket; the voltage input end is connected to the input end of the step-down power supply module; the step-down power supply module is provided with an electric energy metering module; the electric energy metering module comprises a voltage signal sampling circuit and a current sampling signal circuit; the power output end of the step-down power supply module is connected to the power input end of the Bluetooth control module; the Bluetooth control module is wirelessly connected to the control device of the peripheral device; the output control end of the Bluetooth control module is connected to the input end of the relay control module; the suction switch of the relay control module is connected to the socket.
2. The electronic component of the Bluetooth socket with metering according to claim 1, characterized in that: The voltage input terminal is connected to the voltage dividing resistor R17, which is then connected in series with R18, R19, R20, and R21, and then connected to the 3rd pin of U4. The filter capacitor C14 is connected to the 3rd pin of U4 to form a voltage signal sampling circuit.
3. The electronic component of the Bluetooth socket with metering according to claim 1, characterized in that: The relay switch and the current sampling resistor R14 are connected in series with resistors R15 and R16 to pins 1 and 2 of the metering chip U4 respectively. Capacitors C12 and C13 are used for filtering to form a current sampling signal circuit.
4. The electronic component of the Bluetooth socket with metering according to claim 1, characterized in that: The relay control module includes a relay JD1, a first transistor Q1, and a second transistor Q2. The first end of the relay JD1 is connected to the collector of the first transistor Q1, the emitter of the first transistor Q1 is grounded, the base of the first transistor Q1 is connected to the first pin of the single-chip computer U7, the second end of the relay JD1 is connected to the collector of the second transistor Q2, the emitter of the second transistor Q2 is grounded, and the base of the second transistor Q1 is connected to the second pin of the single-chip computer U7. The suction switch of the relay JD1 is used to control the on and off of the socket. The two ends of the relay JD1 are respectively connected in parallel with a third diode D3 and a fourth diode D4.