CN210430898U

CN210430898U - Low-voltage electric leakage and electric shock prevention device

Info

Publication number: CN210430898U
Application number: CN201921644556.9U
Authority: CN
Inventors: 刘炜; 史兴坤
Original assignee: Shenzhen Sep Investment Co ltd
Current assignee: Shenzhen Sep Investment Co ltd
Priority date: 2019-09-29
Filing date: 2019-09-29
Publication date: 2020-04-28
Anticipated expiration: 2029-09-29

Abstract

The utility model discloses a low pressure electric leakage protection against electric shock device relates to the electric power industry field. The low-voltage electric leakage electric shock prevention device comprises a safety electric device, a central control unit and an intelligent unit, wherein one end of the central control unit is electrically connected with the safety electric device, the other end of the central control unit is electrically connected with the intelligent unit, and the output end of the safety electric device is electrically connected with the input end of the intelligent unit. This low pressure electric leakage protection against electric shock device, this scheme advantage can carry out intelligent regional management to the rear end circuit through unique circuit design, avoids electric wire netting electric leakage, electric shock accident, prevents short circuit tripping operation such as rainwater, and the single branch electric leakage does not influence the line power supply, adopts safe technology to prevent that electric leakage current is direct through the human body, detects electric leakage current simultaneously and reports an emergency and asks for help or increased vigilance the very big reliability of supplying power.

Description

Low-voltage electric leakage and electric shock prevention device

Technical Field

The utility model relates to an electric power industry technical field specifically is a low pressure electric leakage protection against electric shock device.

Background

The low-voltage line causes the insulating crust of the power transmission line to drop and age due to natural environment reasons such as long-term exposure to the sun, rain and the like, and the pedestrian close to the aged line is easy to get an electric shock in a wet environment in rainy days, so that the life safety is threatened.

At present, a safety device mainly exists for a power circuit; firstly, a leakage switch is mainly adopted, the leakage detection current of 30mA under the leakage switch is unsafe for a human body, and the human body often trips by mistake or cannot trip; the second, can't detect and can't continue safe power supply after having the electric leakage, to prior art not enough, the utility model relates to a low pressure electric leakage protection against electric shock device.

SUMMERY OF THE UTILITY MODEL

Technical problem to be solved

To prior art not enough, the utility model discloses a low pressure electric leakage protection against electric shock device to solve the problem that proposes in the above-mentioned background art.

(II) technical scheme

In order to achieve the above purpose, the utility model discloses a following technical scheme realizes: the utility model provides a low pressure electric leakage protection against electric shock device, includes safe power consumption device, central control unit and intelligent cell, the one end of central control unit is connected with safe power consumption device electricity, the central control unit other end is connected with intelligent cell electricity, safe power consumption device's output is connected with intelligent cell's input electricity.

The safety electricity utilization device comprises a mains supply access module, a power supply acquisition module, a CPU, an alarm module, a route selection module and a short-distance protection module, wherein the output end of the mains supply access module is electrically connected with the input end of the power supply acquisition module, the output end of the power supply acquisition module is electrically connected with the input end of the CPU, the output end of the CPU is respectively and electrically connected with the alarm module and the route selection module, and the output end of the route selection module is electrically connected with the input end of the short-distance protection module.

The central control unit comprises an AD sampling module, a central processing module, a display module and a first carrier module, wherein the input end of the AD sampling module is arranged in a connecting line of the safety electric device and the intelligent unit, the output end of the AD sampling module is electrically connected with the input end of the central processing module, one end of the central processing module is electrically connected with the short-distance ground protection module, and the other end of the central processing module is electrically connected with the display module and the first carrier module.

The intelligent unit comprises a second carrier module, an intelligent socket and an intelligent electric appliance, and the output end of the second carrier module is connected with the intelligent socket and the intelligent electric appliance respectively.

Preferably, the short-distance ground protection module comprises a high-resistance branch and a low-resistance branch, the high-resistance branch comprises a current collection module, a choking module and a switch, the low-resistance branch comprises a current sampling module, a high-resistance branch resistor K and a control signal, the current collection module, the choking module and the switch are connected in series in sequence, a signal emission source is arranged inside the switch, and the output end of the switch emits the control signal.

Preferably, the short-distance protection module is provided with an output end, and the output end is electrically connected with the central processing module.

Preferably, the second carrier module is provided with two output ends, and the two output ends are respectively connected with an intelligent socket and an intelligent electric appliance.

Preferably, a signal transmitter is arranged inside the alarm module.

The utility model discloses a low pressure electric leakage protection against electric shock device, its beneficial effect who possesses as follows:

this low pressure electric leakage protection against electric shock device, this scheme advantage can carry out intelligent regional management to the rear end circuit through unique circuit design, avoids electric wire netting electric leakage, electric shock accident, prevents short circuit tripping operation such as rainwater, and the single branch electric leakage does not influence the line power supply, adopts safe technology to prevent that electric leakage current is direct through the human body, detects electric leakage current simultaneously and reports an emergency and asks for help or increased vigilance the very big reliability of supplying power.

Drawings

FIG. 1 is a structural system diagram of the present invention;

fig. 2 is an internal system diagram of the safety power utilization device and the short-circuit protection device of the present invention.

In the figure: the system comprises an s1 safety electric device, an s2 short-circuit protection device, an s3 central control unit, an s4 intelligent unit, a 1 commercial power access module, a 2 power acquisition module, a 3CPU, a 4 alarm module, a 5 routing module, a 6 short-circuit protection module, a 7 current acquisition module, an 8 choking module, a 9 switch, a 10 current sampling module, 11 high-resistance branch resistors 100K, 12 control signals, a 13AD sampling module, a 14 central processing module, a 15 display module, a 16 first carrier module, a 17 second carrier module, an 18 intelligent socket and 19 intelligent electric appliances.

Detailed Description

The embodiment of the utility model discloses low pressure electric leakage protection against electric shock device, as shown in fig. 1-2, including safe power consumption device s1, central control unit s2 and intelligent cell s3, central control unit s 2's one end is connected with safe power consumption device s1 electricity, and the central control unit s2 other end is connected with intelligent cell s3 electricity, and safe power consumption device s 1's output is connected with intelligent cell s 3's input electricity.

Specifically, the safety electricity utilization device s1 includes a utility power access module 1, a power collection module 2, a CPU3, an alarm module 4, a routing module 5 and a short-distance protection module 6, wherein an output end of the utility power access module 1 is electrically connected with an input end of the power collection module 2, an output end of the power collection module 2 is electrically connected with an input end of the CPU3, an output end of the CPU3 is electrically connected with the alarm module 4 and the routing module 5, an output end of the routing module 5 is electrically connected with an input end of the short-distance protection module 6, and the safety electricity utilization device has the advantages that the safety electricity utilization device can be realized through unique circuit, carry out intelligent regional management to rear end circuit, avoid electric wire netting electric leakage, electric shock accident, prevent short circuit tripping operation such as rainwater, the single branch electric leakage does not influence the circuit power supply, adopts safe technology to prevent that electric leakage current is direct through the human body, detects electric leakage current simultaneously and reports an emergency and asks for help or increased vigilance the very big reliability of supplying power.

Further, the central control unit s2 includes an AD sampling module 13, a central processing module 14, a display module 15 and a first carrier module 16, an input end of the AD sampling module 13 is disposed in a connection between the safety electric device s1 and the intelligent unit s3, an output end of the AD sampling module 13 is electrically connected to an input end of the central processing module 14, one end of the central processing module 14 is electrically connected to the short-earth protection module 6, and the other end of the central processing module 14 is electrically connected to the display module 15 and the first carrier module 16.

In addition, the device is used for supplying power to the electric equipment after the commercial power is correspondingly connected by a commercial power access terminal after the transformer low-voltage side switch 9, and the power is supplied to the electric equipment through the short-distance protection module 6, so that the electric equipment is not subjected to misoperation or electric shock and power outage when the electric equipment is in a falling point.

Specifically, the intelligent unit s3 includes a second carrier module 17, an intelligent socket 18 and an intelligent electrical appliance 19, and the output end of the second carrier module 17 is connected to the intelligent socket 18 and the intelligent electrical appliance 19 respectively.

In this embodiment, a utility power access module 1, a short-ground protection module 6, a power acquisition module 2, a CPU3, a routing module 5, and an alarm module 4 are provided, the short-ground protection device 6 is composed of a high-resistance branch, a current acquisition module 2, and a low-resistance branch, the utility power is firstly accessed to the utility power access module 1, then accessed to the power acquisition module 2 and the current acquisition module 7, the acquired data is transmitted to a CPU3 unit, the CPU3 detects that the routing module 5 and the alarm module 4 are short-ground started, the routing module 5 activates the short-ground protection module 6, the short-ground protection module 6 rapidly operates to close a grounding impedance branch, and the rear-end line leakage current is less than 10 mA.

The working principle is as follows:

the utility power is connected to the utility power access module 1, the line power voltage current is detected by the power acquisition module 2, and then the line power voltage current is stably output by the short-circuit protection module 6, wherein the short-circuit protection module 6 comprises a high-resistance branch and a low-resistance branch, the low-resistance branch comprises a current acquisition module 7, a switch 9 and a choke module 8, a high-resistance branch resistor 100K11 and a current sampling module 10, the switch 9 closes the low-resistance loop choke module 8 under the normal condition and is smaller than 4 ohms, once the live wire short circuit occurs, the protection ground voltage is pulled up, the power frequency current preferentially selects the low-resistance loop, the instantaneous choke module 8 resistor reaches more than 16K, the current flowing through the abnormal loop is smaller than 10mA, the human body safety current is shifted to play a role in electric shock protection, meanwhile, the abnormal current of 10mA detected by the current sampling module 10 is transmitted to the CPU3, sending a control signal 12 to the switch 9 to open the low-resistance loop, wherein the current flows from the high-resistance loop, the fault current is about 2mA at the moment, and if the fault current disappears, the switch 9 is closed again;

the signals collected by the power source collecting module 2 and the current sampling module 10 are transmitted to the CPU3 for central processing, and if a fault is detected, the alarm module 4 is driven to alarm, and the routing module 5 and the short-circuit protection module 6 are driven to work.

The basic principles and the main features of the invention and the advantages of the invention have been shown and described above. It will be understood by those skilled in the art that the present invention is not limited to the above embodiments, and that the foregoing embodiments and descriptions are provided only to illustrate the principles of the present invention without departing from the spirit and scope of the present invention. The scope of the invention is defined by the appended claims and equivalents thereof.

Claims

1. A low-voltage electric leakage protection electric shock device comprises a safety electric device (s1), a central control unit (s2) and an intelligent unit (s3), and is characterized in that: one end of the central control unit (s2) is electrically connected with a safety electric device (s1), the other end of the central control unit (s2) is electrically connected with an intelligent unit (s3), and the output end of the safety electric device (s1) is electrically connected with the input end of the intelligent unit (s 3);

the safety electricity utilization device (s1) comprises a mains supply access module (1), a power supply acquisition module (2), a CPU (3), an alarm module (4), a route selection module (5) and a short-distance protection module (6), wherein the output end of the mains supply access module (1) is electrically connected with the input end of the power supply acquisition module (2), the output end of the power supply acquisition module (2) is electrically connected with the input end of the CPU (3), the output end of the CPU (3) is electrically connected with the alarm module (4) and the route selection module (5) respectively, and the output end of the route selection module (5) is electrically connected with the input end of the short-distance protection module (6);

the central control unit (s2) comprises an AD sampling module (13), a central processing module (14), a display module (15) and a first carrier module (16), wherein the input end of the AD sampling module (13) is arranged in a connection line between a safety electric device (s1) and an intelligent unit (s3), the output end of the AD sampling module (13) is electrically connected with the input end of the central processing module (14), one end of the central processing module (14) is electrically connected with a short-earth protection module (6), and the other end of the central processing module (14) is electrically connected with the display module (15) and the first carrier module (16);

the intelligent unit (s3) comprises a second carrier module (17), an intelligent socket (18) and an intelligent electric appliance (19), and the output end of the second carrier module (17) is connected with the intelligent socket (18) and the intelligent electric appliance (19) respectively.

2. A low voltage creepage and protection against electric shock device according to claim 1, wherein: short ground protection module (6) comprises high resistance branch road and low resistance branch road, and the high resistance branch road includes current acquisition module (7), choking module (8) and switch (9), and the low resistance branch road includes current sampling module (10), high resistance branch road resistance 100K (11) and control signal (12), current acquisition module (7), choking module (8) and switch (9) adopt to establish ties and connect gradually, the inside of switch (9) is equipped with the signal emission source, just the output transmission of switch (9) has control signal (12).

3. A low voltage creepage and protection against electric shock device according to claim 1, wherein: the short-distance protection module (6) is provided with an output end, and the output end is electrically connected with the central processing module (14).

4. A low voltage creepage and protection against electric shock device according to claim 1, wherein: the second carrier module (17) is provided with two output ends, and the two output ends are respectively connected with an intelligent socket (18) and an intelligent electric appliance (19).

5. A low voltage creepage and protection against electric shock device according to claim 1, wherein: and a signal transmitter is arranged in the alarm module (4).