Socket ground wire abnormity detection method and device and socket

文档序号：1963037 发布日期：2021-12-14 浏览：19次中文

阅读说明：本技术 一种插座地线异常的检测方法、装置及插座 (Socket ground wire abnormity detection method and device and socket ) 是由李炳要侯玉黄令忠余梅梅陈薇李涛刘俊英戴斌张昱波刘晓薇于 2021-08-30 设计创作，主要内容包括：本发明提供一种插座地线异常的检测方法、装置及插座,包括,检测插座插孔之间的电压值,判断插座插孔之间的电压值是否超过预设安全阈值,得到电压检测结果；获取插座连接的空气开关的状态,根据电压检测结果和空气开关的状态判断该插座的地线是否带电,得到地线异常检测结果；当地线异常检测结果为异常时,则断开切断火线、地线及零线并输出报警信号。本发明通过检测插孔之间的电压值判断地线是否带电或悬空,当检测到地线带电或者地线悬空时,可同时断开火地零三线,同时还可通过红灯常亮、声音鸣叫告警,向用户手机端发送警告信息。(The invention provides a method and a device for detecting the abnormity of a socket ground wire and a socket, wherein the method comprises the steps of detecting the voltage value between socket jacks, judging whether the voltage value between the socket jacks exceeds a preset safety threshold value or not, and obtaining a voltage detection result; acquiring the state of an air switch connected with the socket, and judging whether the ground wire of the socket is electrified or not according to the voltage detection result and the state of the air switch to obtain a ground wire abnormity detection result; and when the ground wire abnormity detection result is abnormal, cutting off the live wire, the ground wire and the zero wire and outputting an alarm signal. The invention judges whether the ground wire is electrified or suspended by detecting the voltage value between the jacks, can simultaneously cut off the three lines of the fire ground zero when detecting that the ground wire is electrified or suspended, and can send warning information to the mobile phone end of a user by the red light which is normally on and the sound to alarm.)

1. A method for detecting abnormal ground wires of a socket is characterized by comprising the following steps:

detecting voltage values among the jack sockets, and judging whether the voltage values among the jack sockets exceed a preset safety threshold value or not to obtain a voltage detection result;

and when the ground wire abnormity detection result is abnormal, cutting off the live wire, the ground wire and the zero wire and outputting an alarm signal.

2. The method of claim 1, wherein the voltage detection result comprises:

when the voltage value between the live wire and the ground wire exceeds a preset safety threshold value, the voltage value between the live wire and the zero wire exceeds a preset safety threshold value, and the voltage value between the zero wire and the ground wire does not exceed a preset safety threshold value, generating a voltage detection result as normal wiring;

when the voltage value between the live wire and the ground wire does not exceed a preset safety threshold, the voltage value between the live wire and the zero wire exceeds a preset safety threshold, and the voltage value between the zero wire and the ground wire exceeds a preset safety threshold, generating a voltage detection result that the live wire and the zero wire are reversely connected;

when the voltage value between the live wire and the ground wire does not exceed a preset safety threshold, the voltage value between the live wire and the zero wire exceeds a preset safety threshold, and the voltage value between the zero wire and the ground wire does not exceed a preset safety threshold, generating a voltage detection result that the ground wire is suspended;

when the voltage value between the live wire and the ground wire exceeds a preset safety threshold, the voltage value between the live wire and the zero wire does not exceed the preset safety threshold, and the voltage value between the zero wire and the ground wire exceeds the preset safety threshold, generating a voltage detection result that the live wire and the ground wire are reversely connected;

and when the voltage value between the live wire and the ground wire does not exceed the preset safety threshold, the voltage value between the live wire and the zero wire exceeds the preset safety threshold, and the voltage value between the zero wire and the ground wire does not exceed the preset safety threshold, generating a voltage detection result that the live wire and the zero wire are reversely connected and the ground wire is suspended.

3. The method of claim 2, wherein the determining whether the ground line of the outlet is charged according to the voltage detection result and the state of the air switch comprises:

when the voltage detection result is that the live wire and the zero line are reversely connected and the air switch is tripped, judging that the ground wire is electrified;

and when the voltage detection result is normal wiring and the air switch trips, judging that the zero line and the live line are reversely connected and the ground line is electrified.

4. The method of claim 3, wherein the ground line anomaly detection result comprises:

when the ground wire is electrified or is suspended, generating a ground wire abnormity detection result as abnormity;

and generating a ground wire abnormal detection result as normal when the ground wire is not electrified and the ground wire is not suspended.

5. A device for detecting abnormal ground wire of a socket, which is used for realizing the method according to any one of claims 1-4, and is characterized by comprising:

the first detection module is used for detecting voltage values among the socket jacks and outputting the detected voltage values among the socket jacks to the processing module;

the second detection module is used for acquiring the state of an air switch connected with the socket and outputting the state of the air switch to the processing module;

and the circuit breaker is used for responding to the alarm signal to cut off the live wire, the ground wire and the zero line.

6. The apparatus of claim 5, further comprising:

the communication module is used for responding to the alarm signal and outputting the abnormal signal to the remote alarm device;

the display module is used for displaying the detected voltage value and responding to the alarm signal to display abnormal alarm information;

and the power supply module is used for supplying power to the processing module, the first detection module, the second detection module, the communication module and the display module.

7. The apparatus of claim 6, wherein the processing module is further configured to generate the voltage detection result as a normal connection when the voltage value between the live wire and the ground wire exceeds a preset safety threshold, the voltage value between the live wire and the neutral wire exceeds a preset safety threshold, and the voltage value between the neutral wire and the ground wire does not exceed a preset safety threshold;

when the voltage value between the live wire and the ground wire does not exceed a preset safety threshold, the voltage value between the live wire and the zero wire exceeds a preset safety threshold, and the voltage value between the zero wire and the ground wire does not exceed a preset safety threshold, generating a voltage detection result that the ground wire is suspended;

8. The apparatus of claim 7, wherein the processing module is further configured to determine that the ground is charged when the voltage detection result is that the live wire and the neutral wire are connected reversely and the air switch is tripped;

and when the voltage detection result is normal wiring and the air switch trips, judging that the zero line and the live line are reversely connected and the ground line is electrified.

9. The apparatus of claim 8, wherein the processing module is further configured to generate the ground wire anomaly detection result as an anomaly when the ground wire is live or the ground wire is empty;

and generating a ground wire abnormal detection result as normal when the ground wire is not electrified and the ground wire is not suspended.

10. A socket comprising a device for detecting an abnormality of a ground wire of the socket according to any one of claims 5 to 9.

Technical Field

The invention relates to the technical field of electricity utilization safety detection, in particular to a method and a device for detecting abnormity of a socket ground wire and a socket.

Background

In recent years, with the advancement of urbanization and the expansion of urban range in China, more and more urban villages are included in cities, and correspondingly, transformers belonging to the urban village transformer area also occupy a large proportion of all transformers in the cities; the proportion of urban village residents to all residents is also large. And urban village resident buildings are insufficient in safety design of electric lines and low in construction quality due to historical reasons, and a large number of potential safety hazards of the electric lines often exist. The hidden danger is serious enough to possibly cause casualties, except for accidents of the charging vehicle, even the accidents of electric shock casualties of the people often happen in kitchens and bathrooms, and the accidents of electric shock casualties of residents often happen for many years. Through the analysis of a large number of cases, the common reason for the occurrence of the electric shock accidents of residents is that the ground wire serving as the 'life protection wire' is electrified, and when people touch the shell of equipment with the electrified ground wire, such as a refrigerator, a washing machine and a water heater particularly used for bathing, the electric shock accidents are directly caused. How to automatically detect whether the ground wire of the socket is electrified and automatically cut off three wires of fire, zero and ground is a big difficulty of the current electric device.

Disclosure of Invention

The invention aims to provide a method for detecting the abnormity of a socket ground wire, which solves the technical problem that the existing electric device cannot automatically detect whether the socket ground wire is electrified and automatically disconnect the socket ground wire.

In one aspect, a method for detecting an abnormal ground wire of a socket is provided, which includes:

detecting voltage values among the jack sockets, and judging whether the voltage values among the jack sockets exceed a preset safety threshold value or not to obtain a voltage detection result;

and when the ground wire abnormity detection result is abnormal, cutting off the live wire, the ground wire and the zero wire and outputting an alarm signal.

Preferably, the voltage detection result includes:

when the voltage value between the live wire and the ground wire does not exceed a preset safety threshold, the voltage value between the live wire and the zero wire exceeds a preset safety threshold, and the voltage value between the zero wire and the ground wire does not exceed a preset safety threshold, generating a voltage detection result that the ground wire is suspended;

Preferably, the judging whether the ground wire of the socket is electrified according to the voltage detection result and the state of the air switch includes:

when the voltage detection result is that the live wire and the zero line are reversely connected and the air switch is tripped, judging that the ground wire is electrified;

and when the voltage detection result is normal wiring and the air switch trips, judging that the zero line and the live line are reversely connected and the ground line is electrified.

Preferably, the ground line abnormality detection result includes:

when the ground wire is electrified or is suspended, generating a ground wire abnormity detection result as abnormity;

and generating a ground wire abnormal detection result as normal when the ground wire is not electrified and the ground wire is not suspended.

On the other hand, the invention also provides a device for detecting the abnormal outlet ground wire, which is used for the method for detecting the abnormal outlet ground wire, and comprises the following steps:

the first detection module is used for detecting voltage values among the socket jacks and outputting the detected voltage values among the socket jacks to the processing module;

the second detection module is used for acquiring the state of an air switch connected with the socket and outputting the state of the air switch to the processing module;

and the circuit breaker is used for responding to the alarm signal to cut off the live wire, the ground wire and the zero line.

Preferably, the method further comprises the following steps: the communication module is used for responding to the alarm signal and outputting the abnormal signal to the remote alarm device;

the display module is used for displaying the detected voltage value and responding to the alarm signal to display abnormal alarm information;

and the power supply module is used for supplying power to the processing module, the first detection module, the second detection module, the communication module and the display module.

Preferably, the processing module is further configured to generate a voltage detection result as a normal wiring when the voltage value between the live wire and the ground wire exceeds a preset safety threshold, the voltage value between the live wire and the zero wire exceeds a preset safety threshold, and the voltage value between the zero wire and the ground wire does not exceed a preset safety threshold;

when the voltage value between the live wire and the ground wire does not exceed a preset safety threshold, the voltage value between the live wire and the zero wire exceeds a preset safety threshold, and the voltage value between the zero wire and the ground wire does not exceed a preset safety threshold, generating a voltage detection result that the ground wire is suspended;

Preferably, the processing module is further configured to determine that the ground line is electrified when the voltage detection result indicates that the live line and the zero line are reversely connected and the air switch is tripped;

and when the voltage detection result is normal wiring and the air switch trips, judging that the zero line and the live line are reversely connected and the ground line is electrified.

Preferably, the processing module is further configured to generate a ground wire abnormality detection result as an abnormality when the ground wire is electrified or the ground wire is suspended;

and generating a ground wire abnormal detection result as normal when the ground wire is not electrified and the ground wire is not suspended.

In another aspect, the socket comprises the detection device for the abnormal ground wire of the socket.

In summary, the embodiment of the invention has the following beneficial effects:

the method, the device and the socket for detecting the abnormity of the socket ground wire, which are provided by the invention, are consistent with the specifications of the jacks of the existing socket, can be directly connected to the existing socket or a panel for use, judge whether the ground wire is electrified or suspended by detecting the voltage value between the jacks, can simultaneously cut off the three lines of the fire ground when the ground wire is electrified or the ground wire is suspended, and can simultaneously send warning information to a mobile phone end of a user by normally lightening a red light and sounding an alarm through sound. Especially when the ground wire is electrified, the conventional leakage protector does not act, and the protection device can automatically cut off the fire ground zero-three wires according to the judgment logic of the electrification of the ground wire or the virtual connection of the ground wire, so that the physical isolation between an electric shock accident site and a power supply is realized, and the safety of personal equipment is ensured.

Drawings

In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is within the scope of the present invention for those skilled in the art to obtain other drawings based on the drawings without inventive exercise.

Fig. 1 is a schematic main flow chart of a method for detecting an abnormal receptacle ground line according to an embodiment of the present invention.

Fig. 2 is a schematic diagram of an apparatus for detecting an abnormal ground wire of a socket according to an embodiment of the present invention.

Fig. 3 is a circuit diagram of a device for detecting an abnormal ground wire of a socket according to an embodiment of the present invention.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention will be described in further detail with reference to the accompanying drawings.

Fig. 1 is a schematic diagram illustrating an embodiment of a method for detecting an abnormal ground wire of a receptacle according to the present invention. In this embodiment, the method comprises:

detecting voltage values among the jack sockets, and judging whether the voltage values among the jack sockets exceed a preset safety threshold value or not to obtain a voltage detection result;

acquiring the state of an air switch connected with the socket, and judging whether the ground wire of the socket is electrified or not according to the voltage detection result and the state of the air switch to obtain a ground wire abnormity detection result; it can be understood that the condition of the connection of the socket can be judged by measuring the voltage value between the jacks, for example, when the voltage between the live wire and the ground wire of the socket is represented as A, the voltage between the live wire and the neutral wire is represented as B, the voltage between the zero wire and the ground wire is represented as C, the voltage is represented as 1 when the voltage is greater than or equal to 36V, the voltage is represented as 0 when the voltage is less than 36V, the corresponding relation between the voltage and the connection can be visually seen through the following table,

in a specific embodiment, when the voltage value between the live wire and the ground wire exceeds a preset safety threshold, the voltage value between the live wire and the zero wire exceeds a preset safety threshold, and the voltage value between the zero wire and the ground wire does not exceed a preset safety threshold, a voltage detection result is generated to be a normal wiring, and corresponds to a serial number 1;

when the voltage value between the live wire and the ground wire does not exceed a preset safety threshold, the voltage value between the live wire and the zero wire exceeds a preset safety threshold, and the voltage value between the zero wire and the ground wire does not exceed a preset safety threshold, generating a voltage detection result that the ground wire is suspended, and corresponding to a serial number 4;

when the voltage value between the live wire and the ground wire exceeds a preset safety threshold value, the voltage value between the live wire and the zero wire does not exceed the preset safety threshold value, and the voltage value between the zero wire and the ground wire exceeds the preset safety threshold value, generating a voltage detection result that the live wire and the ground wire are reversely connected and correspond to a serial number 6;

Further, the corresponding serial numbers of the voltage and the wiring relation of the PE wires are 4 and 8 under the condition that the PE wires are suspended, if the voltage shows that the voltage is 010, the ground wire is considered to be suspended, the K2 is directly disconnected, a danger signal is sent, and the red light is lightened. The PE wire is electrified, the voltage and wiring relations are corresponding to serial numbers 1, 3, 6 and 7, wherein 1 and 3 are both indicated as "011", but only 3, 6 and 7 are actually the real electrified PE wire, and the conditions corresponding to 1 and 3 need to be further analyzed in the actual operation process.

Specifically, if the light passing voltage in the other serial numbers cannot be accurately judged, the light passing voltage is further judged in combination with the tripping condition of the switch, and when the voltage detection result is that the live wire and the zero line are reversely connected and the air switch is tripped, the ground wire is judged to be electrified and corresponds to the serial number 3; and when the voltage detection result is normal wiring and the air switch trips, judging that the zero line and the live line are reversely connected and the ground line is electrified, and corresponding to the serial number 7. If current exists on the ground wire and the current value is larger than 6 milliamperes, K2 is directly switched off, a danger signal is sent, and a red light is turned on.

Specifically, when the ground wire is electrified or is suspended, the ground wire abnormity detection result is generated to be abnormal; and generating a ground wire abnormal detection result as normal when the ground wire is not electrified and the ground wire is not suspended. It should be noted that, in an actual situation, there is also a case that when the N, PE line is reversely connected, if the voltage shows "110", it is consistent with the normal connection, but after the switch K1 is pressed, the home master switch will trip, that is, the case of serial number 5 in the table, it is necessary to determine and turn on the red light for prompting in a specific case.

And when the ground wire abnormity detection result is abnormal, cutting off the live wire, the ground wire and the zero wire and outputting an alarm signal. It can be understood that if the ground wire is electrified, the ground wire is suspended or the ground wire has current, the switch is automatically switched off to cut off the live wire, the ground wire and the zero wire, so that safety protection is realized. The specific alarm mode can adopt three indicator lights of which the safety indicator area is green, yellow and red to respectively represent normal, warning and dangerous wiring states; when in a dangerous state, the buzzer buzzes; simultaneously, the three lines of the fire and the earth are simultaneously disconnected or connected through the switch button, and whether the leakage protection function of the device fails or not can be tested every month through the leakage test button.

Fig. 2 and fig. 3 are schematic diagrams illustrating an embodiment of a device for detecting an abnormal ground wire of a receptacle according to the present invention. In this embodiment, the method for detecting the abnormal ground wire of the outlet by the system includes:

the first detection module is used for detecting voltage values among the socket jacks and outputting the detected voltage values among the socket jacks to the processing module;

the second detection module is used for acquiring the state of an air switch connected with the socket and outputting the state of the air switch to the processing module;

the processing module is used for obtaining a voltage detection result according to the judgment whether the received voltage value between the socket jacks exceeds a preset safety threshold value; judging whether the ground wire of the socket is electrified or not according to the voltage detection result and the state of the air switch to obtain a ground wire abnormity detection result, and outputting an alarm signal when the ground wire abnormity detection result is abnormal; it can be understood that the condition of the connection of the socket can be judged by measuring the voltage value between the jacks, for example, when the voltage between the live wire and the ground wire of the socket is represented as A, the voltage between the live wire and the neutral wire is represented as B, the voltage between the zero wire and the ground wire is represented as C, the voltage is represented as 1 when the voltage is greater than or equal to 36V, the voltage is represented as 0 when the voltage is less than 36V, the corresponding relation between the voltage and the connection can be visually seen through the following table,

in a specific embodiment, the processing module is further configured to generate a voltage detection result as a normal connection corresponding to a serial number 1 when a voltage value between the live wire and the ground wire exceeds a preset safety threshold, a voltage value between the live wire and the zero wire exceeds a preset safety threshold, and a voltage value between the zero wire and the ground wire does not exceed a preset safety threshold;

when the voltage value between the live wire and the ground wire does not exceed a preset safety threshold, the voltage value between the live wire and the zero wire exceeds a preset safety threshold, and the voltage value between the zero wire and the ground wire does not exceed a preset safety threshold, generating a voltage detection result that the ground wire is suspended, and corresponding to a serial number 4;

Specifically, if the light passing voltage in the other serial numbers cannot be accurately judged, the light passing voltage is further judged in combination with the tripping condition of the switch, and the processing module is further used for judging that the ground wire is electrified and corresponds to the serial number 3 when the voltage detection result is that the live wire and the zero wire are reversely connected and the air switch is tripped; and when the voltage detection result is normal wiring and the air switch trips, judging that the zero line and the live line are reversely connected and the ground line is electrified, and corresponding to the serial number 7. If current exists on the ground wire and the current value is larger than 6 milliamperes, K2 is directly switched off, a danger signal is sent, and a red light is turned on.

Specifically, the processing module is further configured to generate a ground wire abnormality detection result as an abnormality when the ground wire is electrified or the ground wire is suspended; and generating a ground wire abnormal detection result as normal when the ground wire is not electrified and the ground wire is not suspended. It should be noted that, in an actual situation, there is also a case that when the N, PE line is reversely connected, if the voltage shows "110", it is consistent with the normal connection, but after the switch K1 is pressed, the home master switch will trip, that is, the case of serial number 5 in the table, it is necessary to determine and turn on the red light for prompting in a specific case.

The circuit breaker is used for responding to the alarm signal to cut off the live wire, the ground wire and the zero line; if the ground wire is electrified, the ground wire is suspended or the ground wire has current, the live wire, the ground wire and the zero wire are cut off according to the alarm signal output by the processing module, and safety protection is realized.

The communication module is used for responding to the alarm signal and outputting the abnormal signal to the remote alarm device;

the display module is used for displaying the detected voltage value and responding to the alarm signal to display abnormal alarm information; voltage, current, residual current, power and the like can be displayed; the safety indication area is provided with three green, yellow and red indicator lights which respectively represent three wiring states of normal, warning and danger.

And the power supply module is used for supplying power to the processing module, the first detection module, the second detection module, the communication module and the display module.

The leakage protection device can also comprise a control switch, can simultaneously disconnect or connect three fire-ground wires through a switch button, and can test whether the leakage protection function of the device fails or not every month through a leakage test button.

In another aspect, the socket comprises the detection device for the abnormal ground wire of the socket.

In summary, the embodiment of the invention has the following beneficial effects:

The above disclosure is only for the purpose of illustrating the preferred embodiments of the present invention, and it is therefore to be understood that the invention is not limited by the scope of the appended claims.

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Socket ground wire abnormity detection method and device and socket

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