CN202117827U - Vehicle starting circuit with protection circuit - Google Patents
Vehicle starting circuit with protection circuit Download PDFInfo
- Publication number
- CN202117827U CN202117827U CN2011201844343U CN201120184434U CN202117827U CN 202117827 U CN202117827 U CN 202117827U CN 2011201844343 U CN2011201844343 U CN 2011201844343U CN 201120184434 U CN201120184434 U CN 201120184434U CN 202117827 U CN202117827 U CN 202117827U
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- circuit
- starting
- relay
- automobile
- protective circuit
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Abstract
The utility model relates to a vehicle starting circuit, in particular to a vehicle starting circuit with a protection circuit, which comprises a storage battery, an ignition switch, a start relay and a starter. The protection circuit is connected between the start relay and a ground end, the protection circuit comprises an electric switch, an IC (integrated circuit), a rotation speed sensor and a power source, one end of the electric switch is grounded, the other end of the electric switch is connected with the start relay, and an input end of the IC is connected with the rotation speed sensor to control on and off of the electric switch. The vehicle starting circuit is simple in circuit design, low in cost and high in practicality, and safety and reliability of the vehicle starting circuit is effectively improved.
Description
Technical field
The utility model relates to a kind of starting circuit for automobile, particularly a kind of starting circuit for automobile with protective circuit.
Background technique
Vehicle is through starting circuit when starting, and electric energy is converted into mechanical energy, makes motor carry out the transition to working state from state of rest.Fig. 1 is the structural representation of existing technology starting circuit for automobile.As shown in Figure 1, the starting circuit for automobile of existing technology mainly comprises storage battery 1, ignition switch 2, starting relay 3 and Starter 4.Storage battery 1, ignition switch 2 and starting relay 3 constitute and start loops, when ignition switch 2 be an on-state, and this loop connection; Ignition switch ST line connects starting relay 3; Storage battery 1 is connected through starting relay 3 with magnetic switch in the Starter 4.When receiving the vehicle launch signal, key forwards to and starts shelves during like the startup vehicle, and ignition switch 2 is an on-state; Starting relay 3 is connected storage battery 1 and Starter 4, and magnetic switch is connected in the Starter 4, at this moment; Starter 4 is started working, and the bent axle that drives motor rotates ato unit.
Often there is following situation in above-mentioned starting circuit for automobile: after vehicle car, if ignition switch is damaged, starting circuit can not auto-cutout when actuating signal was in time turn-offed, and Starter will be switched on continuously; Vehicle not during car, when the driver sent actuating signal for a long time and causes actuating signal to exist for a long time, starting circuit can not auto-cutout, Starter also can be switched on continuously.
The electric current that automobile-used storage battery is supplied with Starter is often very big, and Starter energising for a long time can cause Starter to damage, and burns, and can cause fire when more serious.
ZL201020270916.6 discloses a kind of Starter control circuit, comprises ignition switch, relay, Starter magnetic switch, car body controller.Relay is the normally-closed contact relay, and its normally-closed contact is serially connected between the control end of ignition switch and Starter magnetic switch.Relay actuating coil one end connects ignition switch, and the other end connects car body controller output/input port; Car body controller is connected with engine speed detection device.This model utility is through the switching of car body controller control relay; Protect starting circuit with this, but this apparatus control system more complicated, the signal transmission must be through car body controller; The actuating signal delay time calculates and the rotating speed collection all needs different device to accomplish, and is more lengthy and tedious; Do not continuing the car state if vehicle car, motor can't run well, and starting circuit then can not cut off the power supply, and still can't play a protective role.
Summary of the invention
The utility model provides a kind of starting circuit for automobile with protective circuit, under starting circuit for automobile operation irregularity situation, realizes the auto-cutout function of starting circuit.
A kind of starting circuit for automobile with protective circuit comprises storage battery, ignition switch, starting relay, Starter, protective circuit.Be connected to described protective circuit between described starting relay and the grounding end.Described protective circuit is made up of electrically switchable grating, IC circuit, speed probe, power supply.Described electrically switchable grating one end ground connection, the other end is connected with starting relay.Described IC circuit input end is connected with speed probe, and described speed probe is installed on the engine flywheel.
The IC circuit of described protective circuit receives actuating signal and engine crankshaft rotating speed sampled signal, through the output light current, and the disconnection of control electrically switchable grating.Said IC circuit clocks to the time-delay of actuating signal, reach a certain Preset Time value after, break off electrically switchable grating in the said protective circuit; The instant detection of engine speed of crankshaft of said IC circuit sampled signal, reach a certain predefined value after, the time-delay of actuating signal is clocked again, reach a certain Preset Time value after, break off electrically switchable grating in the said protective circuit.Said actuating signal takes place after the ignition switch closure; Said engine crankshaft rotating speed sampled signal is taken place by speed probe.
Electrically switchable grating described in the utility model can be selected electromagnetic relay for use.
After described electrically switchable grating breaks off, cause that normally opened contact breaks off in the starting relay, Starter quits work, and reaches starting circuit auto-cutout function.
The utility model circuit design is simple, and cost is low, and is practical, and effectively improved the Security and the reliability of starting circuit for automobile.
Description of drawings
Fig. 1 is the existing technology starting circuit for automobile;
Fig. 2 is the starting circuit for automobile of the utility model band protective circuit;
Fig. 3 is the protective circuit of the utility model;
Fig. 4 is the workflow diagram of the utility model protective circuit.
Embodiment
Describe a kind of embodiment of the utility model in detail below in conjunction with accompanying drawing.
As shown in Figure 2, be the starting circuit for automobile of the utility model band protective circuit, comprise with lower component: storage battery 1, ignition lock 2, starting relay 3, Starter 4, protective circuit 5.Be connected to described protective circuit 5 between described starting relay 3 and the grounding end.
As shown in Figure 3, be a kind of preferred structure of protective circuit in the utility model.Described protective circuit 5 is made up of electromagnetic relay 6, IC circuit 7, speed probe 8, power supply 9.Described electromagnetic relay 6 one end ground connection, the other end is connected with starting relay 3.Described IC circuit 7 input ends are connected with speed probe 8, and described speed probe 8 is installed on the engine flywheel, and the speed of crankshaft of motor is sampled, and sampled signal takes place.
Sampled signal values is the rotating speed predefined value in the time of can setting 650 rpms of engine crankshaft turn ups in the IC circuit 7, reach more than the predefined value be the car state, on the contrary then for not the car state.
Below in conjunction with Fig. 4, the workflow of protective circuit in the present embodiment is described.
When ignition lock 2 starts, starting relay 3 closures, Starter 4 work, electromagnetic relay 6 is in normally off; At this moment, IC circuit 7 receives actuating signal, and begins the time-delay of actuating signal is clocked.Produce two kinds of situation below:
1, vehicle not car, actuating signal continues.At this moment, IC circuit 7 detects sends out the rotating speed sampled signal all the time less than 650 rpms, and the actuating signal time-delay is clocked and reached more than 15 seconds, and then IC circuit 7 breaks off the normally-closed contact of electromagnetic relays 6, realizes the starting circuit auto-cutout;
2, vehicle car, and actuating signal continues.At this moment, IC circuit 7 detects to be sent out a rotating speed sampled signal and reaches more than 650 rpms, then restarts to actuating signal time-delay and clocks; Reach more than 10 seconds when clocking, IC circuit 7 breaks off the normally-closed contact of electromagnetic relay 6, realizes the starting circuit auto-cutout.
Though described the mode of execution of the utility model in conjunction with accompanying drawing, those of ordinary skills can make various changes or modification within the scope of the appended claims.
Claims (4)
1. the starting circuit for automobile with protective circuit comprises storage battery (1), ignition switch (2), starting relay (3), Starter (4), it is characterized in that: be connected to protective circuit (5) between said starting relay (3) and the grounding end; Said protective circuit (5) is made up of electrically switchable grating (6), IC circuit (7), speed probe (8), power supply (9); Described electrically switchable grating (6) one end ground connection, the other end is connected with starting relay (3); Described IC circuit (7) input end is connected with speed probe (8), the disconnection of control electrically switchable grating (6).
2. the starting circuit for automobile of band protective circuit according to claim 1 is characterized in that: described IC circuit (7) is accepted actuating signal and engine crankshaft rotating speed sampled signal, through output light current, the disconnection of control electrically switchable grating (6).
3. the starting circuit for automobile of band protective circuit according to claim 1 is characterized in that: said electrically switchable grating (6) is a relay.
4. the starting circuit for automobile of band protective circuit according to claim 1 is characterized in that: said speed probe (8) is installed on the engine flywheel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201844343U CN202117827U (en) | 2011-06-02 | 2011-06-02 | Vehicle starting circuit with protection circuit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2011201844343U CN202117827U (en) | 2011-06-02 | 2011-06-02 | Vehicle starting circuit with protection circuit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202117827U true CN202117827U (en) | 2012-01-18 |
Family
ID=45458899
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2011201844343U Expired - Fee Related CN202117827U (en) | 2011-06-02 | 2011-06-02 | Vehicle starting circuit with protection circuit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202117827U (en) |
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748183A (en) * | 2012-03-01 | 2012-10-24 | 浙江智慧电装有限公司 | Automobile starter starting protection device |
| CN102852690A (en) * | 2012-08-28 | 2013-01-02 | 奇瑞汽车股份有限公司 | Control circuit for start protection of automobile starter and control method of control circuit |
| CN102996315A (en) * | 2012-11-01 | 2013-03-27 | 奇瑞汽车股份有限公司 | Automatic gearshift vehicle-type starting method and starting control circuit |
-
2011
- 2011-06-02 CN CN2011201844343U patent/CN202117827U/en not_active Expired - Fee Related
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102748183A (en) * | 2012-03-01 | 2012-10-24 | 浙江智慧电装有限公司 | Automobile starter starting protection device |
| CN102852690A (en) * | 2012-08-28 | 2013-01-02 | 奇瑞汽车股份有限公司 | Control circuit for start protection of automobile starter and control method of control circuit |
| CN102996315A (en) * | 2012-11-01 | 2013-03-27 | 奇瑞汽车股份有限公司 | Automatic gearshift vehicle-type starting method and starting control circuit |
| CN102996315B (en) * | 2012-11-01 | 2016-06-01 | 奇瑞汽车股份有限公司 | A kind of automatic transmission vehicle starting method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C17 | Cessation of patent right | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20120118 Termination date: 20140602 |