CN202210114U

CN202210114U - Multifunctional electric leakage alarm

Info

Publication number: CN202210114U
Application number: CN2011203229067U
Authority: CN
Inventors: 罗流华
Original assignee: Individual
Current assignee: Individual
Priority date: 2011-08-26
Filing date: 2011-08-26
Publication date: 2012-05-02
Anticipated expiration: 2021-08-26

Abstract

Disclosed is a multifunctional electric leakage alarm, comprising a power supply circuit and a voltage and resistor detecting circuit, wherein a first electrical contact and a second electrical contact of the voltage and resistor detecting circuit are electrically connected with the to-be-detected object; the voltage signals or resistor signals detected by the voltage and resistor detecting circuit are transmitted to a control unit by a change-over switch to change at different contacts; the alarm limit voltage or alarm limit resistor of the to-be-detected objects are set by pressing a first button and a second button upon a button circuit; the control unit emits instruction signals according to the voltage signals or resistor signals detected by the voltage and resistor detecting circuit and displays the voltage or resistance value of the to-be-detected object via a display circuit; meanwhile, the control unit controls the flicking of the red and green lamps upon an indicating lamp circuit; and the control unit also controls the buzzing alarm of an alarm circuit to alarm. The multifunctional electric leakage alarm is provided with the function of a low voltage electric leakage alarm and a grounding alarm and can remind the production management personnel of the electric leakage and grounding conditions of the production tools, thereby being capable of cutting management cost for enterprises and improving product quality.

Description

A kind of multifunctional electric leakage alarm

Technical field:

The utility model relates to the leakage alarm technical field, more specifically to a kind of leakage alarm that can show electrical leakage voltage and stake resistance resistance.

Background technology:

Along with constantly bringing forth new ideas of electronic product, each electron production corporate client is more and more stricter to the quality requirements of present procedure for producing and product.The large-scale machine of the electronic product of normal domestic and factory, the on-the-spot electrical leakage voltage of plant produced are controlled to the intelligence system development; And what often ignore is the metallurgical instrument skinny devices of numerous some that on streamline, use in the production run; Like some instrument skinny device classes of electric soldering iron, welding stage, electric screw driver, element cutter, point gum machine, adhesive tape machine or the like; Their electrical leakage voltage and the stake resistance often keeper of production technology portion can be ignored, but this small voltage causes immeasurable loss but can for some more sensitive line components.

The utility model content:

The purpose of the utility model is exactly the deficiency to prior art; And a kind of multifunctional electric leakage alarm is provided; It has low pressure leakage alarm and two kinds of functions of ground alarm; Can remind the production management personnel to note electric leakage and ground connection situation in the tool of production equipment at any time, for enterprise saves handling cost, improve the quality of product extremely easily.

The technological solution of the utility model is following:

A kind of multifunctional electric leakage alarm comprises power circuit, voltage and resistance detecting circuit, and power circuit is given voltage and resistance detecting circuit, control module, key circuit, display circuit, indicator light circuit and warning circuit power supply,

First electric contact and second electric contact of voltage and resistance detecting circuit are electrically connected with detected object, on different contacts, make voltage and resistance detecting circuit detectable voltage signals or resistance signal flow to control module through the switch conversion;

Press first button, second alarm limit voltage or the alarm limit resistance on the key circuit by the key assignments detected object;

Control module sends command signal shows detected object through display circuit voltage or resistance value according to voltage and the detected voltage signal of resistance detecting circuit or resistance signal; Red light and the green light controlled simultaneously on the indicator light circuit are bright dark, and the buzzer siren of control warning circuit is reported to the police.

Said display circuit adopts the LED digital display screen, and the voltage of voltage and the detected detected object of resistance detecting circuit or resistance value are shown by the LED digital display screen.

The beneficial effect of the utility model is:

1, it can detect the resistance value of the magnitude of voltage and the stake resistance of electrical leakage voltage; Show through the LED digital display screen; And through alarm equipment alarm; At any time remind the production management personnel to note electric leakage and ground connection situation in the tool of production equipment, for enterprise saves handling cost, improve the quality of product extremely easily.

2, alarm limit magnitude of voltage and ultimate resistance value can be passed through the key circuit automatic setting, and be very convenient to use.

3, when electrical leakage voltage oversteps the extreme limit voltage, the alarm sound and light alarm, red light is bright, and display screen shows the voltage that current detection arrives; When electrical leakage voltage is lower than limiting voltage, alarm in order, green light is bright, display screen shows the voltage that current detection arrives.When detecting stake resistance as a same reason.

Whether 4, its band self-checking function, analog output voltage or resistance detect for product itself can operate as normal, removes correction from.

Description of drawings:

Fig. 1 is the circuit diagram of control module in the utility model circuit diagram

Fig. 2 is the circuit diagram of voltage and resistance detecting circuit in the utility model circuit diagram

Fig. 3 is the circuit diagram of warning circuit in the utility model circuit diagram

Fig. 4 is the circuit diagram of key circuit in the utility model circuit diagram

Fig. 5 is the circuit diagram of indicator light circuit figure in the utility model circuit diagram

Fig. 6 is the circuit diagram of display circuit in the utility model circuit diagram

Fig. 7 is the circuit diagram of power circuit in the utility model circuit diagram

Fig. 8 is the circuit diagram of additional circuits in the utility model circuit diagram

Embodiment:

Embodiment: see shown in Fig. 1 to 8; A kind of multifunctional electric leakage alarm; Comprise power circuit, voltage and resistance detecting circuit, power circuit is given voltage and resistance detecting circuit, control module U3, key circuit, display circuit, indicator light circuit and warning circuit power supply

The first electric contact P1 and the second electric contact P2 of voltage and resistance detecting circuit are electrically connected with detected object, on different contacts, make voltage and resistance detecting circuit detectable voltage signals or resistance signal flow to control module U3 through switch K1 conversion;

Press the first button S1 on the key circuit, alarm limit voltage or the alarm limit resistance that the second button S2 sets detected object;

Control module U3 sends command signal shows detected object through display circuit voltage or resistance value according to voltage and the detected voltage signal of resistance detecting circuit or resistance signal; Red light and the green light controlled simultaneously on the indicator light circuit are bright dark, and the buzzer siren BELL of control warning circuit reports to the police.

Claims

1. a multifunctional electric leakage alarm comprises power circuit, voltage and resistance detecting circuit, it is characterized in that: power circuit is given voltage and resistance detecting circuit, control module (U3), key circuit, display circuit, indicator light circuit and warning circuit power supply,

First electric contact (P1) and second electric contact (P2) of voltage and resistance detecting circuit are electrically connected with detected object, on different contacts, make voltage and resistance detecting circuit detectable voltage signals or resistance signal flow to control module (U3) through switch (K1) conversion;

Press first button (S1) on the key circuit, alarm limit voltage or the alarm limit resistance that second button (S2) is set detected object;

Control module (U3) sends command signal shows detected object through display circuit voltage or resistance value according to voltage and the detected voltage signal of resistance detecting circuit or resistance signal; Red light and the green light controlled simultaneously on the indicator light circuit are bright dark, and the buzzer siren (BELL) of control warning circuit is reported to the police.

2. a kind of multifunctional electric leakage alarm according to claim 1 is characterized in that: display circuit adopts the LED digital display screen, and the voltage of voltage and the detected detected object of resistance detecting circuit or resistance value are shown by the LED digital display screen.