CN208207107U

CN208207107U - A kind of detection device of single-phase three-wire formula wall socket ground wire, zero curve and phase line

Info

Publication number: CN208207107U
Application number: CN201820880675.3U
Authority: CN
Inventors: 徐畅
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-06-08
Filing date: 2018-06-08
Publication date: 2018-12-07
Anticipated expiration: 2028-06-08

Abstract

The utility model discloses the detection devices of a kind of single-phase three-wire formula wall socket ground wire, zero curve and phase line, its main feature is that, including an empty three-phase power plug, the series network being made of high voltage rectifier 1N4007,150K ohm of current-limiting resistances, instruction with three elements of Light-emitting diode LED is welded inside it, series network is connect respectively between three electrodes；Three holes are opened on plug body, and three LED lights are installed in hole；The plug for welding circuit is inserted into wall socket to be detected, the wiring condition of each route can be differentiated according to the light on and off state of three LED lights；Have the characteristics that easy to operate, perfect in shape and function, safe and reliable, cost is extremely low, can disposably be tested with no phase line, ground wire or zero curve and confirm whether each line position be correct.

Description

A kind of detection device of single-phase three-wire formula wall socket ground wire, zero curve and phase line

Technical field:

The utility model relates to single-phase three-wire formula wall socket detection technique field, specifically a kind of single-phase three-wire formula The detection device of wall socket ground wire, zero curve and phase line detects single-phase three-wire formula wall especially suitable for household and office environments Whether the presence or absence of ground wire, zero curve and phase line of socket and wiring position are wrong.

Background technique:

Currently, for the presence or absence of ground wire, zero curve and phase line of single-phase three-wire formula wall socket of household and office environments with And the whether vicious detection method of wiring position, the most commonly used is use voltage test pencil to detect wall power sockets, this method Can only detect the presence of phase line and which item is phase line, but ground wire or zero curve cannot be detected the presence of, and ground wire on many electric appliances such as Washing machine, refrigerator etc. are very important, very dangerous without ground wire.

Utility model content:

The purpose of the utility model is to overcome the deficiencies of above-mentioned prior art, and provide a kind of single-phase three-wire formula wall socket The detection device of ground wire, zero curve and phase line；Mainly solving existing voltage test pencil detection wall power sockets, there are insecurity factors Problem.

The technical solution of the utility model is: the detection dress of a kind of single-phase three-wire formula wall socket ground wire, zero curve and phase line It sets, which is characterized in that including an empty three-phase power plug, welded inside it by high voltage rectifier 1N4007,150K The series network that ohm current-limiting resistance, instruction are constituted with three elements of Light-emitting diode LED, series network is connect respectively at three Between electrode；Three holes are opened on plug body, and three LED lights are installed in hole.

A kind of single-phase three-wire formula wall socket ground wire described in the utility model, the detection device of zero curve and phase line and existing Technology, which is compared, has following good effect, and 1, single circuit, the circuit between phase line and zero curve are formed between phase line and ground wire Series relationship can be formed with the circuit between zero curve and ground wire, light LED to remain to forming circuit when zero curve lacks, in this way The case where can detecting zero curve missing；It can be disposably tested with no phase line, ground wire or zero curve, and confirm each line position It is whether correct；2, method is simple, perfect in shape and function, has the characteristics that easy to operate, safe and reliable, cost is extremely low.

Detailed description of the invention:

Fig. 1 is the circuit connection diagram of the utility model.

Specific embodiment:

For a better understanding and implementation, providing specific embodiment with reference to the accompanying drawing is described in detail the utility model；Institute It is only used for explaining the utility model for embodiment, is not intended to limit the scope of the utility model.

Embodiment 1, referring to Fig. 1, for the presence or absence of single-phase three-wire formula wall socket ground wire, zero curve and phase line and wiring whether Correct detection device is welded inside it including an empty three-phase power plug by high voltage rectifier 1N4007,150K The series network that ohm current-limiting resistance, instruction are constituted with three elements of Light-emitting diode LED, series network is connect respectively at three Between electrode；Three holes are opened on plug body, and three LED lights are installed in hole.

The detection device of a kind of single-phase three-wire formula wall socket ground wire described in the utility model, zero curve and phase line uses When, the plug for welding circuit is inserted into wall socket to be detected, can be differentiated according to the light on and off state of three LED lights The wiring condition of each route；Alternating voltage between each electrode rectifies by diode 1N4007 and passes through 150K Ohmic resistance limit After stream, it is applied to three Light-emitting diode LED to drive its light emission, as having the detection of no-voltage between two electrodes and refer to Show；As long as there is the alternating voltage greater than 20V between two electrodes, the LED between the two electrodes will be lighted；According to three The light on and off state of LED can determine that three electrodes, and which is firewire and zero curve, and whether has ground wire；

It is specific to determine that state is as follows:

LED1 LED2 LED3

Bright wiring of going out is correct

Go out bright scarce ground wire

Light on and off of going out lack zero curve

Phase shortage of going out line

Light on and off expose zero reversed

Light on and off are mutually reversed

The bright reversed and scarce zero curve that exposes.

The detection device of a kind of single-phase three-wire formula wall socket ground wire of the utility model, zero curve and phase line, can be primary Property is tested with no phase line, ground wire or zero curve and confirms whether each line position be correct, easy to operate, perfect in shape and function.

Claims

1. the detection device of a kind of single-phase three-wire formula wall socket ground wire, zero curve and phase line, which is characterized in that empty including one Three-phase power plug is welded inside it by high voltage rectifier 1N4007,150K ohm of current-limiting resistances, instruction light-emitting diodes The series network that tri- elements of pipe LED are constituted, series network is connect respectively between three electrodes；Three are opened on plug body Three LED lights are installed in hole in hole.