A detection circuit and method for single-phase neutral wire and live wire and ground wire
A technology for detecting circuits and single-phase power supplies, applied in the field of circuits, can solve the problems of wrong connection, danger, reverse connection of live and neutral wires, etc., and achieve the effect of convenient, fast and simple operation.
Active Publication Date: 2020-01-14
君凯迪科技(深圳)有限公司
View PDF6 Cites 0 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
However, in the engineering links such as home decoration, it is often not possible to distinguish by color, and it needs to be determined by actual measurement.
In the actual scene, sometimes there will be a situation where the live wire and the neutral wire are reversed during decoration, and sometimes there is a certain danger.
Therefore, especially in the case of manual wiring, it is easy to cause electric shock
In addition, since the potentials of the neutral wire and the ground wire are close to 0V, it cannot be detected with a test pen, and there are often wrong connections.
However, the current single-phase three-hole socket detection on the market cannot judge this situation.
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0014] The following is a clear and complete description of the technical solution of the present invention in conjunction with the accompanying drawings. Apparently, the described embodiments are part of the embodiments of the present invention, but not all of them. Based on the embodiments of the present invention, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the protection scope of the present invention.
[0015] A neutral wire and live wire detection circuit provided in this embodiment includes: a single-phase power line 100, including a neutral wire N, a live wire L and a ground wire E; the detection circuit also includes a detection unit 200, which includes three Connectors 1, 2, 3; connector 1 is connected to resistor R1, connector 2 is connected to resistor R3, R1 is connected to one end of diode D1, and the other end of D1 is connected to light-emitting diode D3; connector 2 is connected to R3, and the...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
A detection circuit and method for single-phase neutral wire, live wire and ground wire, comprising: a single-phase power line 100, including a neutral wire N, a live wire L and a ground wire E; the detection circuit also includes a detection unit 200 , including three connectors 1, 2, and 3; connector 1 is connected to resistor R1, connector 2 is connected to resistor R3, R1 is connected to one end of diode D1, and the other end of D1 is connected to light-emitting diode D3; connector 2 is connected to R3 , the other end of R3 is connected with diode D2; diode D2 is also connected to one end of light-emitting diode D3 and connected to the negative end of D1; that is, the negative end of D1 and D2 is connected; further light-emitting diode D3 is connected to resistor R4, and through R4 connected to the ground wire; the connector 3 is connected to a resistor R5, which is connected to the anode of the diode D6 through the resistor R5, the cathode of the diode D6 is connected to the current-limiting resistor R6, and the light-emitting diode D5 is connected through the R6, and then connected to the light-emitting diode D5 to ground EE.
Description
technical field [0001] The invention belongs to the field of circuits, in particular to a detection circuit and method for single-phase live wires, neutral wires and ground wires. Background technique [0002] In daily life, household appliances are usually connected to a 220V single-phase power supply, and most of the sockets set on the wall are single-phase three-wire sockets, and the color is specified as: live wire (also called phase wire)-L (red or yellow), Neutral wire-N (blue or black), ground wire-E (yellow-green). However, in the engineering links such as home decoration, it is often not possible to distinguish by color, and it needs to be determined by actual measurement. In the actual scene, sometimes there will be situations where the live wire and the neutral wire are reversed during decoration, and sometimes there is a certain danger. Therefore, especially in the case of manual wiring, it is easy to cause electric shock. In addition, since the potentials of ...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Patents(China)
IPC IPC(8): G01R31/54G01R31/58
CPCG01R31/58
Inventor 张俊詹莉徐千朗悦
Owner 君凯迪科技(深圳)有限公司