CN201284687Y - Control device used for protecting car engine at high water temperature - Google Patents
Control device used for protecting car engine at high water temperature Download PDFInfo
- Publication number
- CN201284687Y CN201284687Y CNU2008201992288U CN200820199228U CN201284687Y CN 201284687 Y CN201284687 Y CN 201284687Y CN U2008201992288 U CNU2008201992288 U CN U2008201992288U CN 200820199228 U CN200820199228 U CN 200820199228U CN 201284687 Y CN201284687 Y CN 201284687Y
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- pin
- terminal
- relay
- water temperature
- power supply
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Abstract
The utility model relates to a control device used for protecting an automobile engine in high water temperature. A first normally-closed relay is respectively connected with a power supply, a water temperature sensor and a delay relay; a second normally-closed relay is respectively connected with an ignition power supply, the delay relay, a power supply cathode and an engine stalling switch; and a third double-pole relay is respectively connected with a risk alarm switch, the delay relay, the power supply cathode and the risk alarm switch. The utility model avoids the damage of the engine due to long time working under the condition of high water temperature and large consumption of fuel.
Description
Technical field
The utility model relates to a kind of car engine protector, the device of protection motor car engine when being specifically related to the high water temperature of a kind of motor car engine.
Background technique
Existing water temperature alarm device is merely able to utilize coolant temperature alert light to point out the water temperature of driver's motor too high, engine behavior relies on driver's operation fully, when the driver does not in time operate or misoperation occurs, be easy to damage motor and a large amount of loss fuel oil.
The model utility content
The utility model is at the deficiencies in the prior art, designed and developed out a kind of when water temperature is too high the device of control operation protection motor automatically.
The utility model is achieved through the following technical solutions:
The control gear of protection motor car engine when being used for high water temperature, include cooling-water temperature sensor and be attached thereto the power supply that connects, terminal 30 pin that it is characterized in that a normally closed relay link to each other with power supply, terminal 86 pin are connected with terminal 30 pin, terminal 85 is connected with the terminal K pin of described cooling-water temperature sensor, and terminal 87 pin connect the terminal A1 pin of time delay relay; Terminal 30 pin of No. two normally closed relays connect the priming supply of motor, and terminal 86 pin link to each other with the terminal A2 pin of time delay relay, and terminal 85 pin are connected with power cathode, and terminal 87a pin is connected with engine misses switch terminal 3 pin; Terminal 30 pin of No. three two keys relay are connected with 4 pin of danger warning switch terminal, terminal 86 pin are connected with the terminal A1 pin of time delay relay, terminal 85 pin are connected with power cathode, terminal 87a pin is connected with 6 pin of danger warning switch terminal, and terminal 87b pin links to each other with 8 pin of danger warning switch terminal.
The utility model has solved motor and has worked long hours when high water temperature and to reduce the problem that engine life and a large amount of fuel consumption influence environmental protection.It is made up of the relay and the delay switch circuit of automotive meter list area.It impels motor to open danger warning open-close warning driver automatically when high water temperature; and it is automatically that engine shutdown is flame-out by the time relay and delay switch circuit after 40 seconds; treat just can remain in operation after water temperature reduces, its beneficial effect is to have avoided motor to work long hours under the situation of high water temperature to damage machine and consume a large amount of fuel.
Description of drawings
Accompanying drawing is an electrical block diagram.
Embodiment
Shown in accompanying drawing.
As shown in the figure; the high water temperature of motor car engine protection controller is the separate control circuit that is made of cooling-water temperature sensor, danger warning switch, engine misses switch, time delay relay, normally closed relay, No. two normally closed relays, No. three two keys relay, realizes the time-delay shutdown of motor and the automatic work of danger warning.Terminal 30 pin of a normally closed relay (4) link to each other with power supply, terminal 86 pin are connected with terminal 30 pin, terminal 85 is connected with the terminal K pin of cooling-water temperature sensor, terminal 87 pin connect the terminal A1 pin of time delay relay (2), terminal 30 pin of No. two normally closed relays (5) connect the priming supply of motor, terminal 86 pin link to each other with the terminal A2 pin of time delay relay (2), terminal 85 pin are connected with power cathode, terminal 87a pin is connected with engine misses switch terminal 3 pin, terminal 30 pin of No. three two keys relay (6) are connected with 4 pin of danger warning switch terminal, terminal 86 pin are connected with the terminal A1 pin of time delay relay (2), terminal 85 pin are connected with power cathode, terminal 87a pin is connected with 6 pin of danger warning switch terminal, and terminal 87b pin links to each other with 8 pin of danger warning switch terminal.The working state of each relay satisfies following logical relation, and a normally closed relay (4) work produces back No. three relays of output (6) work, and while time delay relay (2) trigger, time delay relay (2) produce then No. two relays (5) work of output.
Concrete working procedure is, normally closed relay 30 pin and 86 pin have, when engine water temperature is too high by relay 85 pin of cooling-water temperature sensor K foot control system, a relay job, 30 pin of a relay link to each other with 87 pin, 87 pin that is to say a relay have, the A1 pin of time delay relay and 86 pin of No. three relays have simultaneously, after 40 seconds there be the A2 pin of time delay relay, 86 pin of No. two relays have, No. two normally closed relay is started working, 30 pin of No. two normally closed relays and 87a pin disconnect, and the startup power supply of motor also just disconnects, engine stoping operation, when normally closed relay 87 pin have electricity, 86 pin of No. three two keys relay have electricity, No. three two keys relay work, and 30 pin of No. three two keys relay and 87a pin 87b pin are communicated with, at this moment danger warning relay work, danger alarm lamp begin to report to the police.
Corresponding concrete connection between selection of each relay types (normally closed, double-pole, time-delay) and the relay contact does not have only above-mentioned sole mode, as long as the configuration of each relay can realize above-described control logic.
Claims (1)
- The control gear of protection motor car engine when 1, being used for high water temperature, include cooling-water temperature sensor and be attached thereto the power supply that connects, terminal 30 pin that it is characterized in that a normally closed relay link to each other with power supply, terminal 86 pin are connected with terminal 30 pin, terminal 85 is connected with the terminal K pin of described cooling-water temperature sensor, and terminal 87 pin connect the terminal A1 pin of time delay relay; Terminal 30 pin of No. two normally closed relays connect the priming supply of motor, and terminal 86 pin link to each other with the terminal A2 pin of time delay relay, and terminal 85 pin are connected with power cathode, and terminal 87a pin is connected with engine misses switch terminal 3 pin; Terminal 30 pin of No. three two keys relay are connected with 4 pin of danger warning switch terminal, terminal 86 pin are connected with the terminal A1 pin of time delay relay, terminal 85 pin are connected with power cathode, terminal 87a pin is connected with 6 pin of danger warning switch terminal, and terminal 87b pin links to each other with 8 pin of danger warning switch terminal.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201992288U CN201284687Y (en) | 2008-11-21 | 2008-11-21 | Control device used for protecting car engine at high water temperature |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CNU2008201992288U CN201284687Y (en) | 2008-11-21 | 2008-11-21 | Control device used for protecting car engine at high water temperature |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN201284687Y true CN201284687Y (en) | 2009-08-05 |
Family
ID=40949672
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CNU2008201992288U Expired - Fee Related CN201284687Y (en) | 2008-11-21 | 2008-11-21 | Control device used for protecting car engine at high water temperature |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN201284687Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104298280A (en) * | 2014-09-01 | 2015-01-21 | 潍柴动力股份有限公司 | Engineering machine shutdown control method and device |
-
2008
- 2008-11-21 CN CNU2008201992288U patent/CN201284687Y/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104298280A (en) * | 2014-09-01 | 2015-01-21 | 潍柴动力股份有限公司 | Engineering machine shutdown control method and device |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20090805 Termination date: 20161121 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |