CN2893166Y - Engine trouble protector - Google Patents
Engine trouble protector Download PDFInfo
- Publication number
- CN2893166Y CN2893166Y CN 200620081202 CN200620081202U CN2893166Y CN 2893166 Y CN2893166 Y CN 2893166Y CN 200620081202 CN200620081202 CN 200620081202 CN 200620081202 U CN200620081202 U CN 200620081202U CN 2893166 Y CN2893166 Y CN 2893166Y
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- CN
- China
- Prior art keywords
- engine
- control circuit
- relay
- time delay
- fault
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
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Abstract
The utility model discloses an engine failure protective device. The engine failure protective device comprises an ignition coil control circuit which is electrically connected with an ignition switch and an engine failure testing circuit; wherein, the ignition coil control circuit are connected with the engine failure testing circuit in parallel; the ignition coil control circuit comprises a ignition coil, the engine failure testing circuit comprises an engine oil pressure switch and a thermoswitch which are connected in parallel, the engine failure testing circuit further comprises a time delay relay which is connected with the engine oil pressure switch or the thermoswitch in parallel, and the time delay relay has the normally closed contact connected with the ignition coil in a parallel. The engine failure protective device has the advantages of simple structure, convenient installation, and low cost and ensures the smooth starting of the engine and simultaneously provides protections to both engine oil failure and high-temperature failure of the engine. The engine failure protective device is not only applicable to vehicles using gasoline but also to vehicles using diesel once the ignition coil control circuit is replaced by a fuel cut-off electromagnetic circuit.
Description
Technical field
The utility model relates to a kind of explosive motor protective equipment, and is particularly a kind of when motor generation machine oil fault and high temperature fault, can make the fault-preventing device of engine of motor auto extinguishing.
Background technique
Motor is the chief component of automobile, because of causing motor, machine oil fault and high temperature fault damage, and be the main cause that automobile shifts to an earlier date overhaul.The catastrophic failure of oil pump, lubricating oil leakage, oil duct are blocked can both cause the motor tile kilning, burn cylinder or scuffing of cylinder bore, severe patient even may cause body to scrap.Cooling liquid leakage, water pump or fan failure all may cause engine temperature too high, cause the cylinder block and head distortion, and scuffing of cylinder bore and cylinder pad burn.Report to the police though engine oil pressure and water temperature are housed on the automobile, in cruising, the driver is in order to guarantee traffic safety, and main energy is placed on the road surface, so even fault is arranged, the driver also may not necessarily in time find, and has and can cause heavy losses.Known engine protection device, complex structure mostly, the manufacture cost height is difficult for installing, and all is single machine oil error protection.
The model utility content
Technical problem to be solved in the utility model is: provide a kind of simple in structure, easy for installation, the fault-preventing device of engine of low cost of manufacture.
For solving the problems of the technologies described above, the technical solution of the utility model is: fault-preventing device of engine comprises a spark coil control circuit that is electrically connected with ignition switch, an engine failure testing circuit; Described spark coil control circuit is in parallel with described engine failure testing circuit; Described spark coil control circuit comprises spark coil, described engine failure testing circuit comprises an Oil pressure switch, described engine failure testing circuit also comprises the time delay relay of connecting with Oil pressure switch, and the normally-closed contact of described time delay relay is connected with spark coil.
When ignition switch is closed, at the beginning, because engine oil pressure is low, the Oil pressure switch closure, but time delay relay is in the time-delay state, so the not conducting of whole engine failure testing circuit, thereby the normally-closed contact of time delay relay is in closed state, the conducting of spark coil control circuit, spark coil gets electric, and motor is started working.Rising along with engine oil pressure, Oil pressure switch is opened rapidly, but time delay relay still is in the time-delay state, so not conducting of whole engine failure testing circuit, the normally-closed contact of time delay relay still is in closed state, and the spark coil control circuit continues conducting, motor proper functioning, that is to say that this device can guarantee that motor normally starts.When the machine oil fault takes place when, engine oil pressure drops to below the setting value, the Oil pressure switch closure, at this moment, time delay relay finishes time-delay already, thereby make the conducting of engine failure testing circuit, the hot-wire coil of time delay relay gets electric, and cut-out point fire coil control circuit is opened in its normally closed electric shock, the spark coil dead electricity, motor quits work.This structure is fit to gasoline car.
Described time delay relay can be realized with following concrete structure: comprise a common relay, a delay control circuit that is connected with the hot-wire coil of described common relay.Described delay control circuit comprises a triode, a RC branch road; Described RC branch road comprises that one is connected in the electric capacity of spark coil control circuit and first resistance of a ground connection; The emitter of triode is connected with the spark coil control circuit, and the collector electrode of triode is connected with the hot-wire coil of common relay, is provided with second resistance between the base stage of triode and the RC branch road.
When ignition switch was closed, the electric capacity charging was in short-circuit condition, and this moment, triode did not have base current, thereby the collector electrode of triode do not have electric current output, and the hot-wire coil of common relay must not electricity, and its normally-closed contact remains closed.After charging finished, electric capacity was in turnoff state, and at this moment, the collector current of triode is through second resistance and first resistance eutral grounding, but because Oil pressure switch is opened, collector electrode does not still have electric current output.When the machine oil fault takes place when, Oil pressure switch closure, electric current of manying bigger of collector electrode output of triode than base current, make the hot-wire coil of common relay get electric and work, its normally-closed contact is opened, cut-out point fire coil control circuit, the spark coil dead electricity, motor quits work.The duration of charge of electric capacity is exactly the delay time of time delay relay, adjusts the parameter of first resistance, second resistance and electric capacity, can adjust delay time.
As a kind of improvement, described engine failure testing circuit comprises a thermoswitch in parallel with described Oil pressure switch, and described thermoswitch is connected with described time delay relay.When the temperature of cooling liquid was lower than the setting temperature of thermoswitch, it was in opening state, when being higher than setting temperature, and the thermoswitch closure.Because Oil pressure switch is in parallel with thermoswitch, so as long as a closure is arranged, spark coil will dead electricity, motor is quit work, thereby accomplished the duplicate protection of motor.
As same inventive concept, concerning diesel-oil vehicle, because it does not have spark coil, so, stop the solenoid control circuit if cut off, motor is quit work.
Fault-preventing device of engine, comprise one be electrically connected with ignition switch stop solenoid control circuit, an engine failure testing circuit; The described solenoid control circuit that stops is in parallel with described engine failure testing circuit; The described solenoid control circuit that stops comprises and stops solenoid, described engine failure testing circuit comprises an Oil pressure switch, described engine failure testing circuit comprises the time delay relay of connecting with Oil pressure switch, the described time delay relay normally-closed contact of connecting in the solenoid control circuit that stops.
Its working principle and above-mentioned technological scheme at gasoline car are basic identical, and its difference is, the spark coil control circuit is replaced with stop the solenoid control circuit.Here, owing to stop the model difference of solenoid, the big current drives of the needs that have, the little current drives of the needs that have in order to adapt to both of these case, provides following two kinds of concrete technological schemes respectively:
Described time delay relay normally-closed contact with stop solenoid and connect.This technological scheme is fit to the relay of the little current drives of needs.
The described solenoid control circuit that stops comprises a high-current relay branch road, described high-current relay branch road comprises a high-current relay, the normally-closed contact of described time delay relay is connected with the hot-wire coil of high-current relay, the normally opened contact of described high-current relay with stop solenoid and connect.This technological scheme is fit to the relay of the big current drives of needs.
Description of drawings
Below in conjunction with drawings and Examples the utility model is further specified.
Fig. 1 is the utility model first embodiment's a circuit diagram;
Fig. 2 is the utility model second embodiment's a circuit diagram.
Fig. 3 is the utility model the 3rd embodiment's a circuit diagram.
Embodiment
First embodiment: as shown in Figure 1, fault-preventing device of engine comprises a spark coil control circuit that is electrically connected with ignition switch 1, an engine failure testing circuit; Described spark coil control circuit is in parallel with described engine failure testing circuit; Described spark coil control circuit comprises spark coil 4, and described engine failure testing circuit comprises 2, one thermoswitches 3 of an Oil pressure switch, 3 parallel connections of described Oil pressure switch 2 thermoswitches.When engine oil pressure is lower than setting value, Oil pressure switch 2 closures, when engine oil pressure was higher than setting value, Oil pressure switch 2 disconnected.When the temperature of cooling liquid is higher than setting value, thermoswitch 3 closures, when being lower than setting value, thermoswitch 3 disconnects.The engine failure testing circuit also comprises a warning branch road, and described warning branch road comprises an alarm indicator lamp L, and alarm indicator lamp L connects with Oil pressure switch 2 and thermoswitch 3 respectively.When Oil pressure switch 2 or thermoswitch 3 closures, the conducting of warning branch road, alarm indicator lamp L reports to the police.
Described engine failure testing circuit comprises the time delay relay of connecting with Oil pressure switch 2 and thermoswitch 3 respectively, the normally-closed contact K of described time delay relay
11Connect with spark coil 4.
Described time delay relay comprises a common relay K
1, one and described common relay K
1The delay control circuit that connects of hot-wire coil.Described delay control circuit comprises a triode T, a RC branch road; Described RC branch road comprises a capacitor C that is connected in the spark coil control circuit
1Resistance R with a ground connection
1The emitter e of triode is connected with the spark coil control circuit, and the collector electrode c of triode is connected with the hot-wire coil of common relay, is provided with resistance R between the base stage b of triode and the RC branch road
2Described triode T is a positive-negative-positive triode.
In order to protect triode T, between the collector electrode c of triode and ground, be provided with a diode D
1Burn triode T when preventing wiring error, diode D of serial connection in the spark coil control circuit
2
When ignition switch 1 closure, capacitor C
1Charging also is in short-circuit condition, and this moment, triode T did not have base current, thereby the collector electrode C of triode does not have electric current output, common relay T
1Hot-wire coil must not the electricity, its normally-closed contact K
11Remain closed.After charging finishes, capacitor C
1Be in turnoff state, at this moment, the collector current of triode T is through second resistance R
2With first resistance R
1Ground connection, but because Oil pressure switch 2 is opened, collector electrode does not still have electric current output.When the machine oil fault takes place when, Oil pressure switch 2 closures, electric current of manying bigger than base current of collector electrode C output of triode T makes common relay T
1Hot-wire coil get electric and work, its normally-closed contact K
11Open, cut-out point fire coil control circuit, spark coil 4 dead electricity, motor quits work.Capacitor C
1Duration of charge be exactly the delay time of time delay relay, adjust first resistance R
1, second resistance R
2And capacitor C
1Parameter, can adjust delay time.
Same, when the setting temperature of the high thermoswitch 3 of temperature of cooling liquid, thermoswitch 3 closures.This moment, spark coil also can dead electricity, motor is quit work, thereby accomplished the duplicate protection of motor.
This mode of execution is fit to gasoline car.
The secondth, embodiment: as shown in Figure 2, its structure and first embodiment are basic identical, and its difference is, with stopping solenoid control circuit substitution point fire coil control circuit, stop the solenoid control circuit and comprise and stop solenoid 5.This embodiment is fit to diesel-oil vehicle.
The 3rd is embodiment: as shown in Figure 3, its structure and second embodiment are basic identical, also are fit to diesel-oil vehicle.Because the solenoid 5 that stops that has needs big current drives, this embodiment designs for the solenoid that stops that adapts to big current drives.
Its difference is, stops the solenoid control circuit and comprises a high-current relay branch road, and described high-current relay branch road comprises a high-current relay K2, the normally-closed contact K of described time delay relay
11With high-current relay K
2Hot-wire coil series connection, described high-current relay K
2Normally opened contact K
21With stop solenoid 5 and connect.
The utility model is not limited to above-mentioned mode of execution, time delay relay for example, also can adopt the time delay relay of other form, its essence is control fault testing circuit time-delay conducting, guarantee that motor starts smoothly when ignition switch is closed, and when breaking down, make the motor stop motion rapidly.
Claims (10)
1, fault-preventing device of engine comprises a spark coil control circuit that is electrically connected with ignition switch (1), an engine failure testing circuit; Described spark coil control circuit is in parallel with described engine failure testing circuit; Described spark coil control circuit comprises spark coil (4), described engine failure testing circuit comprises an Oil pressure switch (2), it is characterized in that: described engine failure testing circuit comprises the time delay relay of connecting with Oil pressure switch (2), the normally-closed contact (K of described time delay relay
11) connect with spark coil (4).
2, fault-preventing device of engine as claimed in claim 1, it is characterized in that: described engine failure testing circuit comprises a thermoswitch (3) in parallel with described Oil pressure switch (2), and described thermoswitch (3) is connected with described time delay relay.
3, fault-preventing device of engine as claimed in claim 1 or 2 is characterized in that: described time delay relay comprises a common relay (K
1), one and described common relay (K
1) the delay control circuit that connects of hot-wire coil.
4, fault-preventing device of engine as claimed in claim 3 is characterized in that: described delay control circuit comprises a triode (T), a RC branch road; Described RC branch road comprises an electric capacity (C who is connected in the spark coil control circuit
1) and the first resistance (R of a ground connection
1); The emitter of triode (e) is connected with the spark coil control circuit, and the collector electrode of triode (c) is connected with the hot-wire coil of common relay, is provided with the second resistance (R between base stage of triode (b) and the RC branch road
2).
5, fault-preventing device of engine, comprise one be electrically connected with ignition switch stop solenoid control circuit, an engine failure testing circuit; The described solenoid control circuit that stops is in parallel with described engine failure testing circuit; The described solenoid control circuit that stops comprises and stops solenoid (5), described engine failure testing circuit comprises an Oil pressure switch (2), it is characterized in that: described engine failure testing circuit comprises the time delay relay of connecting with Oil pressure switch, the described time delay relay normally-closed contact (K that connects in the solenoid control circuit that stops
11).
6, fault-preventing device of engine as claimed in claim 5 is characterized in that: described time delay relay normally-closed contact (K
11) with stop solenoid (5) and connect.
7, fault-preventing device of engine as claimed in claim 5 is characterized in that: the described solenoid control circuit that stops comprises a high-current relay branch road, and described high-current relay branch road comprises a high-current relay (K
2), the normally-closed contact (K of described time delay relay
11) connect the normally opened contact (K of described high-current relay with the hot-wire coil of high-current relay
21) with stop solenoid (5) and connect.
8, as claim 5 or 6 or 7 described fault-preventing device of engine, it is characterized in that: described engine failure testing circuit comprises a thermoswitch (3) in parallel with described Oil pressure switch (2), and described thermoswitch (3) is connected with described time delay relay.
9, fault-preventing device of engine as claimed in claim 8 is characterized in that: described time delay relay comprises a common relay (K
1), a delay control circuit that is connected with the hot-wire coil of described common relay.
10, fault-preventing device of engine as claimed in claim 9 is characterized in that: described delay control circuit comprises a triode (T), a RC branch road; Described RC branch road comprises that is connected in an electric capacity (C who stops the solenoid control circuit
1) and the first resistance (R of a ground connection
1); The emitter of triode (e) with stop the solenoid control circuit and be connected, the collector electrode of triode (c) is connected with the hot-wire coil of common relay, is provided with the second resistance (R between base stage of triode (b) and the RC branch road
2).
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620081202 CN2893166Y (en) | 2006-02-22 | 2006-02-22 | Engine trouble protector |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200620081202 CN2893166Y (en) | 2006-02-22 | 2006-02-22 | Engine trouble protector |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2893166Y true CN2893166Y (en) | 2007-04-25 |
Family
ID=38061331
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200620081202 Expired - Lifetime CN2893166Y (en) | 2006-02-22 | 2006-02-22 | Engine trouble protector |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2893166Y (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412326C (en) * | 2006-02-22 | 2008-08-20 | 刘强 | Fault-preventing device of engine |
| CN108868959A (en) * | 2018-06-20 | 2018-11-23 | 潍柴动力股份有限公司 | A kind of fault detection means of solenoid valve and oil sump for engine |
| CN110500158A (en) * | 2019-08-19 | 2019-11-26 | 匡远灿 | A kind of engine control protective unit and method |
-
2006
- 2006-02-22 CN CN 200620081202 patent/CN2893166Y/en not_active Expired - Lifetime
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN100412326C (en) * | 2006-02-22 | 2008-08-20 | 刘强 | Fault-preventing device of engine |
| CN108868959A (en) * | 2018-06-20 | 2018-11-23 | 潍柴动力股份有限公司 | A kind of fault detection means of solenoid valve and oil sump for engine |
| CN110500158A (en) * | 2019-08-19 | 2019-11-26 | 匡远灿 | A kind of engine control protective unit and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| AV01 | Patent right actively abandoned |
Effective date of abandoning: 20080820 |
|
| C25 | Abandonment of patent right or utility model to avoid double patenting |