CN205330941U

CN205330941U - Water pump protection control circuit for building

Info

Publication number: CN205330941U
Application number: CN201521120221.9U
Authority: CN
Inventors: 欧美玲
Original assignee: Individual
Current assignee: Individual
Priority date: 2015-12-30
Filing date: 2015-12-30
Publication date: 2016-06-22
Anticipated expiration: 2025-12-30

Abstract

The utility model discloses a water pump protection control circuit for building, including resistance R1, chip IC2, rectifier bridge T and triode V1, sensor A and not gate U1's input is connected to resistance R1's one end, not gate U1's output connecting resistance R2 and resistance R3, and sensor A's other end connecting resistance R3's the other end, triode V1's projecting pole, buzzer B, electric capacity C1, electric capacity C2, rectifier bridge T's port 3 and chip IC1's pin 2 are connected to resistance R3's the other end. The utility model discloses water pump protection control circuit for building has increased sensor and temperature detection module on the basis of original pump control circuit for the circuit has the function of idle running protection and overtemperature prote, and the simple structure of circuit, components and parts are few, therefore has with low costs, convenient to use and the manifold advantage of function.

Description

A kind of water pump for building protection control circuit

Technical field

This utility model relates to a kind of control circuit, specifically a kind of water pump for building protection control circuit。

Background technology

Water pump is conveying liquid or the machinery making fluid pressurization。It sends mechanical energy or other external energies of prime mover to liquid, liquid energy is made to increase, it is mainly used to carry liquid to include water, oil, acid & alkali liquid, emulsion, suspended emulsion and liquid metal etc., also liquid can be carried, admixture of gas and the liquid containing suspended solids, therefore building water supply and drainage cause it is commonly used for, water pump common at present only has simple switching function mostly, it is known that, if water pump in use anhydrous taking out will result in idle running, long-time idle running can have a strong impact on the physical life of water pump, and pump motor can distribute substantial amounts of heat in the course of the work, therefore it is likely to result in its internal component long lasting for work to burn because of overheated, therefore need to be improved。

Utility model content

The purpose of this utility model is in that to provide a kind of water pump for building protection control circuit, with the problem solving to propose in above-mentioned background technology。

For achieving the above object, this utility model provides following technical scheme:

A kind of water pump for building protection control circuit, including resistance R1, chip IC 2, rectifier bridge T and audion V1, one end of described resistance R1 connects the input of sensors A and not gate U1, the outfan of not gate U1 connects resistance R2 and resistance R3, the other end of resistance R3 connects the other end of the other end connection resistance R3 of sensors A, the emitter stage of audion V1, buzzer B, electric capacity C1, electric capacity C2, the port 3 of rectifier bridge T and the pin 2 of chip IC 1, the other end of resistance R1 connects the negative electrode of diode D1, relay J, the contact J-2 of relay J, the other end of electric capacity C2 and the pin 3 of chip IC 1, the anode of diode D1 connects the other end of relay J and the colelctor electrode of audion V1, the base stage of the other end connecting triode V1 of resistance R2, the other end of the contact J-2 of relay J connects the other end of buzzer B, the pin 1 of chip IC 1 connects the other end of electric capacity C1 and the port 1 of rectifier bridge T, the two ends of the port 2 of rectifier bridge T and the port 4 of the rectifier bridge T winding N1 of connection transformer W respectively, one end connecting valve S of the winding N2 of transformator W and the contact J-1 of relay J, the other end of the contact J-1 of relay J connects water pump M, the other end of water pump M connects the other end of the winding N2 of 220V alternating current and transformator W, the other end of switch S connects the other end of 220V alternating current, the model of described chip IC 1 is LM7805。

As preferred version of the present utility model: described sensors A is condensation sensor。

As preferred version of the present utility model: described resistance R3 is critesistor。

Compared with prior art; the beneficial effects of the utility model are: this utility model water pump for building protection control circuit adds sensor and temperature detecting module on the basis of original water pump control circuit; circuit is made to have the function of idle running protection and overtemperature prote; and the simple in construction of circuit, components and parts are few, therefore have that cost is low, easy to use and the advantage of diverse in function。

Accompanying drawing explanation

Fig. 1 is the circuit diagram of water pump for building protection control circuit。

Detailed description of the invention

Below in conjunction with the accompanying drawing in this utility model embodiment, the technical scheme in this utility model embodiment is clearly and completely described, it is clear that described embodiment is only a part of embodiment of this utility model, rather than whole embodiments。Based on the embodiment in this utility model, the every other embodiment that those of ordinary skill in the art obtain under not making creative work premise, broadly fall into the scope of this utility model protection。

Refer to Fig. 1, a kind of water pump for building protection control circuit, including resistance R1, chip IC 2, rectifier bridge T and audion V1, one end of described resistance R1 connects the input of sensors A and not gate U1, the outfan of not gate U1 connects resistance R2 and resistance R3, the other end of resistance R3 connects the other end of the other end connection resistance R3 of sensors A, the emitter stage of audion V1, buzzer B, electric capacity C1, electric capacity C2, the port 3 of rectifier bridge T and the pin 2 of chip IC 1, the other end of resistance R1 connects the negative electrode of diode D1, relay J, the contact J-2 of relay J, the other end of electric capacity C2 and the pin 3 of chip IC 1, the anode of diode D1 connects the other end of relay J and the colelctor electrode of audion V1, the base stage of the other end connecting triode V1 of resistance R2, the other end of the contact J-2 of relay J connects the other end of buzzer B, the pin 1 of chip IC 1 connects the other end of electric capacity C1 and the port 1 of rectifier bridge T, the two ends of the port 2 of rectifier bridge T and the port 4 of the rectifier bridge T winding N1 of connection transformer W respectively, one end connecting valve S of the winding N2 of transformator W and the contact J-1 of relay J, the other end of the contact J-1 of relay J connects water pump M, the other end of water pump M connects the other end of the winding N2 of 220V alternating current and transformator W, the other end of switch S connects the other end of 220V alternating current, the model of described chip IC 1 is LM7805。

Sensors A is condensation sensor。Resistance R3 is critesistor。

Operation principle of the present utility model is: civil power, after transformator W blood pressure lowering, rectifier bridge T rectification, chip IC 1 voltage stabilizing, electric capacity Cl and C2 filtering, provides DC supply for circuit。Circuit has idle running protection and two kinds of functions of overtemperature prote, idle running protection: closing on and off switch S during work, if anhydrous in water pipe, be then similar to short circuit inside sensors A, the input of not gate U1 is high level, output low level, and V1 ends, and relay J does not work。Its normally opened contact J-1 disconnects, and water pump M is inoperative, thus avoiding water pump M idle running, buzzer B conducting, sends chimes of doom simultaneously。If there being water in water pipe, the internal conducting of A, not gate U1 input is low level, exports high level, and V1 turns on, relay J adhesive, and water pump M runs well。Overtemperature prote: when water pump M temperature is within normal range; the resistance of critesistor R3 is very big; the high level signal of not gate U1 output is normally through resistance R2 trigger triode V1; if the water pump M working time is long or overload operation causes that its internal temperature is too high; the resistance temperature influence of critesistor R3 drops to very low, and the high level signal of not gate U1 output is similar to by resistance R3 short circuit, thus cannot trigger triode V1; relay J is injustice, and buzzer B can send chimes of doom simultaneously。

Claims

1. a water pump for building protection control circuit, including resistance R1, chip IC 2, rectifier bridge T and audion V1, it is characterized in that, one end of described resistance R1 connects the input of sensors A and not gate U1, the outfan of not gate U1 connects resistance R2 and resistance R3, the other end of resistance R3 connects the other end of the other end connection resistance R3 of sensors A, the emitter stage of audion V1, buzzer B, electric capacity C1, electric capacity C2, the port 3 of rectifier bridge T and the pin 2 of chip IC 1, the other end of resistance R1 connects the negative electrode of diode D1, relay J, the contact J-2 of relay J, the other end of electric capacity C2 and the pin 3 of chip IC 1, the anode of diode D1 connects the other end of relay J and the colelctor electrode of audion V1, the base stage of the other end connecting triode V1 of resistance R2, the other end of the contact J-2 of relay J connects the other end of buzzer B, the pin 1 of chip IC 1 connects the other end of electric capacity C1 and the port 1 of rectifier bridge T, the two ends of the port 2 of rectifier bridge T and the port 4 of the rectifier bridge T winding N1 of connection transformer W respectively, one end connecting valve S of the winding N2 of transformator W and the contact J-1 of relay J, the other end of the contact J-1 of relay J connects water pump M, the other end of water pump M connects the other end of the winding N2 of 220V alternating current and transformator W, the other end of switch S connects the other end of 220V alternating current, the model of described chip IC 1 is LM7805。

2. according to the water pump protection control circuit for building of the one described in claim 1, it is characterised in that described sensors A is condensation sensor。

3. according to the water pump protection control circuit for building of the one described in claim 1, it is characterised in that described resistance R3 is critesistor。