CN206865127U - A kind of new type electric leakageproof device - Google Patents

Abstract

The utility model discloses a novel electric leakage protection device, comprising: an electric leakage setting unit, a central processing unit, an electric leakage collecting unit, an electric leakage display unit, a test button and a reset button, the electric leakage setting unit is connected with the central processing unit through a circuit board, and the central processing unit It is connected with the electric leakage acquisition unit, the electric leakage display unit, the reset button and the test button through the circuit board. The leakage protection device is low in cost, simple in structure, easy to use, and high in work efficiency. By setting a safe leakage range that neither affects the normal operation of the line nor causes personal injury, when a leakage condition within the safe leakage range is detected Uninterruptible power supply, display leakage information and issue early warning through the leakage display unit, and cut off the circuit when the leakage exceeds the safe range.

Description

A new leakage protection device

technical field

The utility model relates to the field of leakage protection, in particular to a novel leakage protection device

Background technique

Since the invention and use of electricity by human beings, electricity has not only brought a lot of convenience to human beings, but also brought disasters to human beings. It could burn out electrical appliances, cause a fire, or give people an electric shock. In order to make people use electricity safely and avoid many unnecessary losses, someone invented the leakage protector. The leakage protector is a protective device used to prevent personal electric shock and electrical fire when the circuit or electrical insulation is damaged and short-circuited to the ground. On the line, the latter is dedicated to protection against electrical fires. Leakage protectors can be classified according to their protection functions, structural features, installation methods, operation methods, number of poles and lines, action sensitivity, etc., and described according to their protection functions and uses. Generally, they can be divided into leakage protection relays and leakage protection switches. And leakage protection socket three. Leakage protection relay refers to a leakage protection device that has the function of detecting and judging leakage current, but does not have the function of cutting off and connecting the main circuit. Leakage protection relay is composed of zero-sequence transformer, release and auxiliary contact of output signal. It can cooperate with high-current automatic switch, as the general protection of low-voltage power grid or the leakage, grounding or insulation monitoring protection of the main circuit. Leakage protection switch means that it can not only connect or disconnect the main circuit like other circuit breakers, but also has the function of detecting and judging leakage current. When leakage or insulation damage occurs in the main circuit, the leakage protection switch can be based on the judgment result A switching element that turns on or off the main circuit. It cooperates with fuses and thermal relays to form a fully functional low-voltage switching element. Leakage protection socket refers to a power socket that detects and judges leakage current and can cut off the circuit.

The current leakage protection device is sensitive and can trip and cut off the circuit once leakage occurs. However, some working environments have high requirements for normal use of electricity, and tripping and power failure are not allowed, but the requirements for leakage are lower. Existing The current leakage protection device cannot meet the demand.

Contents of the invention

The purpose of this utility model is to provide a new leakage protection device, which can set a safe leakage range that neither affects the normal operation of the line nor causes personal injury. When the leakage condition within the safe leakage range is detected Uninterruptible power supply, display leakage information and issue early warning through the leakage display unit, and cut off the circuit when the leakage exceeds the safe range.

In order to achieve the above object, the utility model provides the following scheme:

A new leakage protection device, comprising: a leakage setting unit, a central processing unit, a leakage collection unit, a leakage display unit, a test button and a reset button, the leakage setting unit is connected to the central processing unit through a circuit board, and the central processing unit is connected to the The electric leakage collection unit, the electric leakage display unit, the reset button and the test button are connected through the circuit board, and the central processing unit compares the electric leakage information collected by the electric leakage collection unit with the electric leakage information set by the electric leakage setting unit, and cuts off the circuit when the predetermined value is reached. Otherwise the circuit is not cut off.

Optionally, the leakage setting unit includes a leakage time setting unit and a leakage quantity setting unit; the leakage time setting unit is used for setting a safe leakage time threshold, and the leakage quantity setting unit is used for setting a safe leakage quantity threshold.

Optionally, the leakage collection unit includes a leakage quantity collection unit and a leakage voltage collection unit; the leakage quantity collection unit is used to collect leakage quantity, and the leakage voltage collection unit is used to collect leakage voltage.

Optionally, the leakage display unit is a light column indicator light, which is used to display the current percentage, and flashes when a certain threshold is reached to display an early warning.

Optionally, the leakage display unit has 6 indicator lights, including power indicator light, accident indicator light, alarm indicator light, communication indicator light, light leakage indicator light, heavy leakage indicator light, power indicator light that is always on when power is on, and accident indicator The light flashes after tripping, and goes out after the accident recovers. The alarm indicator light flashes when the alarm signal occurs, and goes out after the alarm is over. The communication indicator light flashes during communication. The light leakage indicator light flashes when a light leakage occurs. The leakage indicator light flashes when a heavy leakage occurs, and goes out after the fault disappears.

Optionally, it also includes a liquid crystal display window, and the leakage setting unit is 6 operation buttons, and the liquid crystal display window is connected with the 6 buttons and the central processing unit through a circuit board

According to the specific embodiments provided by the invention, the invention discloses the following technical effects: the leakage protection device has low cost, simple structure, convenient use, high work efficiency, and can be set without affecting normal work or endangering personal safety. Leakage range, when the leakage situation within the safe range is detected, the power supply will not be interrupted, and the circuit will be cut off when it exceeds the safe range.

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention or the prior art, the accompanying drawings required in the embodiments will be briefly introduced below. Obviously, the accompanying drawings in the following descriptions are only illustrations of the present invention. For some embodiments, those of ordinary skill in the art can also obtain other drawings based on these drawings without paying creative efforts.

Fig. 1 is the structural representation of a kind of novel leakage protection device embodiment 1 of the present invention;

Fig. 2 is a schematic structural view of Embodiment 2 of a novel leakage protection device of the present invention;

Fig. 3 is a structural schematic diagram of Embodiment 3 of a novel leakage protection device of the present invention.

In the figure 1. Leakage setting unit, 2. Central processing unit, 3. Leakage collection unit, 4. Leakage display unit, 5. Test button, 6. Reset button, 11. Leakage time setting unit, 12. Leakage power setting unit, 31. Leakage power collection unit, 32. Leakage voltage collection unit, 41. Light column indicator light, 13.6 operation buttons, 14. Liquid crystal display window, 42.6 indicator lights.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. example. 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.

The purpose of the present invention is to provide a new type of leakage protection device, the leakage protection device is low in cost, simple in structure, easy to use, high in work efficiency, and can set a safe leakage range that does not affect normal work and endanger personal safety. When the leakage condition within the safety range is detected, the power supply will not be interrupted, and the circuit will be cut off when it exceeds the safety range.

In order to make the above objects, features and advantages of the present invention more comprehensible, the present invention will be further described in detail below in conjunction with the accompanying drawings and specific embodiments.

Fig. 1 is a structural schematic diagram of Embodiment 1 of a novel leakage protection device of the present invention. As shown in Figure 1, the leakage protection device includes a leakage setting unit (1), a central processing unit (2), a leakage acquisition unit (3), a leakage display unit (4), a test button (5) and a reset button (6) ), the leakage setting unit (1) is connected to the central processing unit (2) through a circuit board, the central processing unit (2) is connected to the leakage collection unit (3), the leakage display unit (4), the test button (5), and the reset button ( 6) Connect through the circuit board. When working, set the leakage fixed value and time limit through the leakage setting unit (1), and send the set parameter signal to the central processing unit (2), the leakage acquisition unit (3) collects the leakage signal, and collects the collected leakage signal It is sent to the central processing unit (2), and the leakage signal and the set parameter signal are logically judged. If the fixed value and time limit requirements are met, an adjustment signal is sent, and if the fixed value and time limit requirements are not met, the leakage signal is sent to the leakage display unit (4) , the leakage display unit (4) displays leakage information.

Fig. 2 is a structural schematic diagram of Embodiment 2 of a novel leakage protection device of the present invention. As shown in Figure 2, this leakage protection device comprises, leakage time setting unit (11), leakage quantity setting unit (12), central processing unit (2), leakage quantity acquisition unit (31), leakage voltage acquisition unit (32) , light column indicator light (41), test button (5) and reset button (6), leakage time setting unit (11), leakage power setting unit (12) and central processing unit (2) are connected through circuit board, central processing unit (2) It is connected with the leakage power acquisition unit (31), the leakage voltage acquisition unit (32), the light column indicator light (41), the test button (5), and the reset button (6) through the circuit board. During work, the leakage time setting unit (11) and the leakage quantity setting unit (12) set the leakage fixed value and time limit, and send the set parameter signal to the central processing unit (2), the leakage quantity acquisition unit (31) , the leakage voltage acquisition unit (32) collects the leakage signal, and sends the collected leakage signal to the central processing unit (2), the leakage signal and the set parameter signal are logically judged, and if the fixed value and time limit requirements are met, an adjustment signal is sent. If the fixed value and time limit requirements are met, the leakage signal is sent to the light column indicator light (41), and the light column indicator light (41) displays the leakage information.

Fig. 3 is a structural schematic diagram of Embodiment 3 of a novel leakage protection device of the present invention. As shown in Figure 3, this leakage protection device comprises, 6 operation keys (13) comprise left direction key, up direction key, right direction key, down direction key, confirm key, cancel key, liquid crystal display window (14) is 128* 64 Chinese character LCD liquid crystal, the backlight control device is initially powered on or the backlight is turned on when the right button is pressed, and the backlight is automatically turned off after 10 minutes without other operations, the central processing unit (2), the leakage power collection unit (31), the leakage voltage Acquisition unit (32), 6 indicator lights (42) including power indicator light, accident indicator light, alarm indicator light, communication indicator light, light leakage indicator light, heavy leakage indicator light, test button (5) and reset button (6 ), 6 operation keys (13), the liquid crystal display window (14) is connected with the central processing unit (2) through the circuit board, the central processing unit (2) and the leakage electric quantity collection unit (31), the leakage voltage collection unit (32), The six indicator lights (42), the test button (5), and the reset button (6) are connected through the circuit board. During work, through 6 operation keys and liquid crystal display window (14) display menu setting setting leakage fixed value and time limit, and the parameter signal of setting is sent to central processing unit (2), leakage electric quantity acquisition unit (31) , the leakage voltage acquisition unit (32) collects the leakage signal, and sends the collected leakage signal to the central processing unit (2), the leakage signal and the set parameter signal are logically judged, and if the fixed value and time limit requirements are met, an adjustment signal is sent. If the fixed value and time limit requirements are met, the leakage signal will be sent to 6 indicator lights (42), and the 6 indicator lights (42) will display leakage information, power supply, and the device will record nearly 20 events related to control operations, including: Accident tripping, resetting, alarm and its time, if it is an accident or alarm, the cause of the accident or alarm is also recorded, and these information can be viewed through the liquid crystal display window.

In this paper, multiple examples have been used to illustrate the principle and implementation of the present utility model. The description of the above embodiments is only used to help understand the method of the present invention and its core idea; meanwhile, for those of ordinary skill in the art, according to this The idea of the invention will have changes in the specific implementation and scope of application. In summary, the contents of this specification should not be construed as limiting the present invention.

Claims (6)

1. A novel leakage protection device is characterized in that it comprises: a leakage setting unit, a central processing unit, a leakage acquisition unit, a leakage display unit, a test button and a reset button, and the leakage setting unit and the central processing unit pass through a line Board connection, the central processing unit is connected with the leakage collection unit, the leakage display unit, the reset button, and the test button through a circuit board; the central processing unit collects the leakage data collected by the leakage collection unit The information is compared with the leakage information set by the leakage setting unit, and the circuit is cut off when the preset value is reached, otherwise the circuit is not cut off. 2. A kind of novel leakage protection device according to claim 1, characterized in that, said leakage setting unit comprises a leakage time setting unit and a leakage quantity setting unit; said leakage time setting unit is used to set a safe leakage time threshold, The leakage electric quantity setting unit is used for setting a safe electric leakage electric quantity threshold. 3. A kind of novel earth leakage protective device according to claim 1, characterized in that, said leakage collecting unit comprises a leakage electric quantity collecting unit and a leakage voltage collecting unit; said electric leakage collecting unit is used for collecting electric leakage, said The leakage voltage acquisition unit is used to acquire the leakage voltage. 4. A new type of leakage protection device according to claim 1, wherein the leakage display unit is a light column indicator light, which is used to display the current percentage, and flashes when reaching a certain threshold to display an early warning. 5. A new type of leakage protection device according to claim 1, wherein the leakage display unit is 6 indicator lights, including a power indicator light, an accident indicator light, an alarm indicator light, a communication indicator light, a light leakage indicator light, and a light leakage indicator light. Indicator light, heavy leakage indicator light, the power indicator light is always on when powered on, the accident indicator light flashes after tripping, and goes out after the accident recovers, the alarm indicator light flashes when the alarm signal occurs, and goes out after the alarm is over. The communication indicator light flashes during communication, the light leakage indicator light flashes when a light leakage occurs, and goes out after the fault disappears, and the heavy leakage indicator light flashes when a heavy leakage occurs, and goes out after the fault disappears. 6. A novel leakage protection device according to claim 1, characterized in that it also includes a liquid crystal display window, the leakage setting unit is 6 operation buttons, the liquid crystal display window and the 6 buttons, the The central processing unit is connected through a circuit board.