CN206833686U - Forget power-off alarm - Google Patents

Abstract

It the utility model is related to technical field of electric control, forget power-off alarm more particularly to one kind, including control device, power sensor and voice guard, control device includes single-chip microcomputer and relay A D, pressure sensor B and pressure sensor A are set gradually in door, pressure sensor C is set outdoors, and the voice guard is connected with a pin of single-chip microcomputer；It the utility model is designed reasonably, can be away from home in user or during office, remind user to there is electric equipment to be not turned off, still working, it is closed electric equipment, avoid the generation of danger.

Description

Forget power-off alarm

Technical field

It the utility model is related to technical field of electric control, and in particular to one kind forgets power-off alarm.

Background technology

With increasing for electrical equipment species, people often use a variety of electrical equipment simultaneously at home or in work.When people from When opening family or office, some can be omitted unavoidably and does not pull out electricity or the electrical equipment being stopped, if these electrical equipment can be with normal work Then without threat, if the electrical equipment is heating electrical appliance, after long-time dry combustion method, the problem of just probably causing electrical fire, exist Great potential safety hazard.

Utility model content

In order to solve the above-mentioned technical problem the deficiency in, the purpose of this utility model are：One kind is provided and forgets power alarm Device, it is away from home in user or during office, has may remind the user that electric equipment is not turned off, still worked, allow it by electricity Device equipment is closed, and avoids the generation of danger.

The utility model is that technical scheme is used by solving its technical problem：

Described to forget power-off alarm, including control device, power sensor and voice guard, control device includes monolithic Machine and relay A-D, pressure sensor B and pressure sensor A are set gradually in door, pressure sensor C, the sound are set outdoors Sound alarm is connected with a pin of single-chip microcomputer, and one end of relay A coils concatenates with power sensor, relay C coils One end concatenated with pressure sensor A, one end of relay D coils concatenates with pressure sensor C, relay A, C, D coil The equal external power supply of the other end, one end concatenation pressure sensor B of relay A contacts, the other end respectively with relay B coil with And first one end of contact be connected, the other end external power supply of relay B coils, the other end of the contacts of relay B first with After relay C contact concatenation, external power supply, one end external power supply of the contacts of relay B second, the other end is with relay D's After contact mutually concatenates, and access single-chip microcomputer.

Further preferably, relay A, B, D contact is normally opened contact, and relay C contact is normally-closed contact.

Further preferably, power sensor is arranged in air switch box.

Further preferably, alarm is arranged on the top of door.

Compared with prior art, the utility model has the advantages that：

It the utility model is designed reasonably, can be away from home in user or during office, remind user to there is electric equipment not close Close, still working, it is closed electric equipment, avoid the generation of danger.

Brief description of the drawings

Fig. 1 the utility model structure diagrams；

Fig. 2 the utility model electrical schematic diagrams.

In figure：1st, power sensor；2nd, control device；3rd, pressure sensor C；4th, pressure sensor A；5th, pressure sensor B；6th, door；7th, voice guard；8th, relay A；9th, relay B；10th, relay C；11st, relay D；12nd, single-chip microcomputer.

Embodiment

The utility model embodiment is described further below in conjunction with the accompanying drawings：

Embodiment 1

As shown in Figure 1-2, it is described in the utility model to forget power-off alarm, including control device 2, the harmony of power sensor 1 Sound alarm 7, power sensor 1 are arranged in air switch box, and alarm is arranged on the top of door 6, and control device 2 includes single Piece machine 12 and relay A8-D11, relay A8, B9, D11 contact are normally opened contact, and relay C10 contact is touched to be normally closed Point, pressure sensor B5 and pressure sensor A4 are set gradually in door 6, pressure sensor C3, the audible alarm are set outside door 6 Device 7 is connected with a pin of single-chip microcomputer 12, if changing pin receives high level signal, control voice alarm (power amplifier) is broadcast The alarm of " having electrical equipment not close " is reported, the technology is prior art, it is not necessary to pays creativeness.One end of relay A8 coils with Power sensor 1 concatenates, and one end of relay C10 coils concatenates with pressure sensor A4, one end of relay D11 coils and pressure Force snesor C3 is concatenated, the equal external power supply of the other end of relay A8, C10, D11 coil, one end concatenation of relay A8 contacts Pressure sensor B5, the other end are connected with relay B9 coil and one end of the first contact respectively, relay B9 coils Other end external power supply, after the other ends of the contacts of relay B9 first concatenates with relay C10 contact, external power supply, after One end external power supply of the contacts of electrical equipment B9 second, after the other end mutually concatenates with relay D11 contact, and access single-chip microcomputer 12.

The course of work of the present utility model specifically includes three kinds of situations：

First, when power sensor 1 detects that inactivity consumes on main line；People normally leaves, and will not send alarm.

2nd, when power sensor 1, which detects, still has power consumption on main line, people after pressure sensor A4 by stepping on Pressure sensor B5, then control device 2 can control voice guard 7 to prepare to send alarm, once 6 (representative will leave) of going out Step on pressure sensor C3, then control device 2 can send alarm signal to single-chip microcomputer 12, and voice guard 7 can send alarm Sound.

Specifically, when power sensor 1 detects that inactivity consumes on main line, power sensor 1 connects relay A8 Coil, relay A8 contact closure, when people steps on pressure sensor A4, relay C10 coil is connected, relay C10 normally-closed contact disconnects, and when people steps on pressure sensor B5, relay B9 coil conducting, the first of relay B9 touches Point and the second contact close, when people steps on pressure sensor A4, relay D11 coil conducting, and then relay D11 Contact closure, give single-chip microcomputer 12 1 high level signals, and then trigger voice guard 7 and alarm.

3rd, when power sensor 1, which detects, still has power consumption on main line, if people meets people to 6 mouthfuls of door or made a gift to someone, But and need not go out 6, people station can prepare to send alarm signal in 6 mouthfuls of pressure sensor B5 that step on of door, control device 2, still Send perfect person or connect perfect person return within doors and step on pressure sensor A4 when, prepare to cancel, voice guard 7 will not send alarm Sound.

Specifically, when proceeding to control device 2 and preparing to send alarm signal, now people steps on pressure sensor A4 again When, relay C10 contact disconnects, and now, relay B9 coil losing electricity, relay B9 the second contact disconnects, and cancels report It is alert.

Claims (4)

1. one kind forgets power-off alarm, including control device (2), power sensor (1) and voice guard (7), its feature exist Include single-chip microcomputer (12) and relay A-D (8-11) in, control device (2), set gradually in door (6) pressure sensor B (5) and Pressure sensor A (4), door (6) set pressure sensor C (3) outside, and the voice guard (7) is drawn with the one of single-chip microcomputer (12) Pin is connected, and one end of relay A (8) coil concatenates with power sensor (1), one end of relay C (10) coil and pressure Sensors A (4) concatenates, and one end of relay D (11) coil concatenates with pressure sensor C (3), relay A, C, D (8,10,11) The equal external power supply of the other end of coil, relay A (8) contact one end concatenation pressure sensor B (5), the other end respectively with after Electrical equipment B (9) coil and one end of the first contact are connected, the other end external power supply of relay B (9) coil, relay B After the other end of (9) first contacts concatenates with relay C (10) contact, external power supply, the one of the contacts of relay B (9) second External power supply is held, after the other end mutually concatenates with relay D (11) contact, and accesses single-chip microcomputer (12).

2. according to claim 1 forget power-off alarm, it is characterised in that relay A, B, D (8,9,11) contact are Normally opened contact, relay C (10) contact is normally-closed contact.

3. according to claim 1 forget power-off alarm, it is characterised in that power sensor (1) is arranged on air switch In box.

4. according to claim 1 forget power-off alarm, it is characterised in that alarm is arranged on the top of door (6).