CN201407101Y

CN201407101Y - Water-shortage oil-shortage protector for engine

Info

Publication number: CN201407101Y
Application number: CN200920102566XU
Authority: CN
Inventors: 赵振亚
Original assignee: Individual
Current assignee: Individual
Priority date: 2009-04-30
Filing date: 2009-04-30
Publication date: 2010-02-17
Anticipated expiration: 2019-04-30

Abstract

The utility model relates to a water-shortage oil-shortage protector for an engine, comprising: a temperature detecting switch S2 arranged at a water outlet of the engine, an oil pressure detecting switch S3 arranged on the engine and a protecting circuit. The protecting circuit comprises an over-temperature protecting circuit and an oil-shortage protecting circuit; and the over-temperature protecting circuit and the oil-shortage protecting circuit are serially connected in an ignition circuit of the engine. In the utility model, by arranging the temperature switch at the water outlet of the engine, when a water tank is at high temperature due to shortage of water, a power supply of the engine can be controlled to be cut off automatically so that the engine automatically shuts down and stops operating; and the oil pressure switch is used for detecting whether the engine is short of oil, when the engine is short of oil or the oil pressure can not reach the requirement, the power supplyof the engine is cut off automatically so as to prevent the engine from being locked or damaged due to shortage of oil or undesirable oil pressure.

Description

The motor lack of water lacks the machine oil protector

Technical field

The utility model relates to a kind of car engine protector, and especially a kind of motor lack of water lacks the machine oil protector.

Background technique

Motor is the core of vehicle power, how to guarantee that therefore motor is in the problem that good working order is engineering personnel research always.The oil starvation automatic safety device generally all is housed on motor, general structure is at present: be provided with a cylindrical plastic cover in crankcase body, it is vertically fixed on box house, the centre of plastic sheath penetrates a plain conductor, there is a piston to fluctuate in the plastic sheath with the height of pasta, piston base has a metal needle to contact with crankcase bottom, when consumption of lubricating oil arrives to a certain degree, pasta descends, when being in limit position, and needle point and crankcase bottom conducting below the piston, form short-circuit condition, no longer arcing behind the igniter bonding, motor can not remain in operation, and reaches the purpose of mandatory protection; On the contrary, when the machine oil pasta in the extreme higher position or when being higher than the lowest limit position, needle point leaves crankcase bottom along with piston floats, and forms turnoff state, this moment, motor can proper functioning.The easy clamping stagnation of oil starvation automatic safety device piston of this structure, rate of fault is higher, reliability is relatively poor, and motor damages easily.Engine cooling system breaks down, and, thermostat smooth as pipeline be closed not to be opened, water pipe breaks or other sealing part are leaked, and reasons such as temperature detect switch (TDS) or fan fails, causes motor to damage easily yet.

The model utility content

The utility model technical issues that need to address provide a kind of motor auto extinguishing when lack of water, oil starvation, with the scarce machine oil protector of the motor lack of water of protection motor.

For addressing the above problem; technical solution adopted in the utility model is: a kind of motor lack of water lacks the machine oil protector; comprise the temperature detect switch S2 that is installed in motor water outlet place; engine-mounted engine oil pressure detecting switch S3 and protective circuit; protective circuit comprises overtemperature prote circuit, inorganic oil protective circuit, and described overtemperature prote circuit, inorganic oil protective circuit are connected in series in the engine ignition circuit.

The two ends of the circuit after this novel delay circuit that further comprises, delay circuit are attempted by the two ends of inorganic oil protective circuit or overtemperature prote circuit and the inorganic oil protective circuit is connected.Described inorganic oil protective circuit is the circuit of being made up of relay J 1 and engine oil pressure detecting switch S3.

Adopt the beneficial effect that technique scheme produced to be: this is novel by thermal switch is installed at motor water outlet place; in the time of can controlling water tank lacks water high temperature; automatic disconnection motor power supply; make its auto extinguishing stall; and detect whether lack machine oil by Oil pressure switch; do not reach when requiring when lacking machine oil or engine oil pressure, automatic disconnection motor power supply, protection motor can not reach because of oil starvation or engine oil pressure and require and locking damages.

Description of drawings

Fig. 1 is this practical protective circuit theory diagram;

Fig. 2 is the utility model embodiment 1 circuit theory diagrams;

Fig. 3 is the utility model embodiment 2 circuit theory diagrams.

Embodiment

Below in conjunction with accompanying drawing the utility model is done and to be described in further detail:

This novel temperature detect switch S2 that is installed in motor water outlet place that comprises; engine-mounted engine oil pressure detecting switch S3 and protective circuit; protective circuit as shown in Figure 1; wherein protective circuit comprises overtemperature prote circuit, inorganic oil protective circuit, and described overtemperature prote circuit, inorganic oil protective circuit are connected in series in the engine ignition circuit.Engine oil pressure detecting switch based on prior art is a normally closed switch; need to increase delay circuit; guaranteeing normal ignition and protective circuit work, the two ends of the circuit after this delay circuit is attempted by the two ends of inorganic oil protective circuit or overtemperature prote circuit and the inorganic oil protective circuit is connected.

Embodiment 1

As shown in Figure 2; this novel overtemperature prote circuit that mainly constitutes by temperature detect switch S2; inorganic oil protective circuit of being made up of relay J 1 and Oil pressure switch S3 and the delay circuit of being made up of time relay sj 1 constitute; wherein temperature detect switch S2 is installed in motor water outlet place; be used for the detection of engine temperature; Oil pressure switch is installed on the motor; be used to detect whether machine oil lacks or whether pressure is normal; the common formation of temperature detect switch S2 and control circuit automatic protection circuit of the present utility model; inorganic oil protective circuit temperature and switch S 2 are serially connected in after the ignition switch S1 successively; delay circuit is used to guarantee the machine igniting, and (ignition wire can get when igniting; power-off protecting circuit work during operation); the end of the back one termination thermal switch S2 normally closed in parallel of the normally closed point of the time relay sj 1 of delay circuit and relay J 1; one end of the other end contact fire switch S 1; one end of the coil one termination igniting switch S 1 of time relay sj 1; another termination storage battery negative pole; one end of the one termination igniting switch S 1 of relay J 1, the other end connects the storage battery negative pole by engine oil pressure detecting switch S3.

Embodiment 2

As shown in Figure 3, this embodiment and embodiment's 1 difference is the direct contact live wire of an end of the normally closed point of time relay sj 1 in the delay circuit, an end of the other end contact fire switch S 1.

This is novel except the above embodiments, can also adopt other physical circuit, such as, delay circuit can adopt circuit delay to replace the time relay, and the inorganic oil protective circuit can adopt other forms of sensor and the circuit corresponding with sensor.

Working principle

After opening ignition switch S1, relay J 1 and time relay sj 1 are simultaneously, ignition wire is communicated with storage battery is anodal by the normally closed point of time relay sj 1, ignition wire has, can light a fire, the delay time of time relay sj 1 can be adjusted, be traditionally arranged to be between 20 to 30 seconds, in this delay time, motor can be lighted a fire, and delay time arrives, the normally closed point of time relay sj 1 disconnects, the outage of engine ignition line, the S1 of folding ignition switch again once can continue igniting again again, after the igniting, engine running drives oil pump, and engine oil pressure detecting switch S3 senses engine oil pressure, engine oil pressure detecting switch S3 disconnects, relay J 1 outage, the ignition wire normally closed point by relay J 1 electric, replace time relay sj 1 and power to ignition wire, keep engine running, when temperature was too high, temperature detect switch S2 disconnected the power supply of ignition circuit, the ignition wire outage, engine misses, when lacking machine oil, oil pressure hour, the Oil pressure switch conducting, relay J 1, normally closed electricity disconnects, ignition wire outage, engine misses.

Claims

1, a kind of motor lack of water lacks the machine oil protector; comprise the temperature detect switch S2 that is installed in motor water outlet place; engine-mounted engine oil pressure detecting switch S3 and protective circuit; it is characterized in that: protective circuit comprises overtemperature prote circuit, inorganic oil protective circuit, and described overtemperature prote circuit, inorganic oil protective circuit are connected in series in the engine ignition circuit.

2, motor lack of water according to claim 1 lacks the machine oil protector, it is characterized in that also comprising the two ends of the circuit after delay circuit, delay circuit are attempted by the two ends of inorganic oil protective circuit or overtemperature prote circuit and the inorganic oil protective circuit is connected.

3, motor lack of water according to claim 1 lacks the machine oil protector, it is characterized in that the circuit of described inorganic oil protective circuit for being made up of relay J 1 and engine oil pressure detecting switch S3.