CN2739643Y - Motor vehicle speed display device - Google Patents
Motor vehicle speed display device Download PDFInfo
- Publication number
- CN2739643Y CN2739643Y CN 200420061708 CN200420061708U CN2739643Y CN 2739643 Y CN2739643 Y CN 2739643Y CN 200420061708 CN200420061708 CN 200420061708 CN 200420061708 U CN200420061708 U CN 200420061708U CN 2739643 Y CN2739643 Y CN 2739643Y
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- relay
- vehicle
- vehicle speed
- independent
- speed
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- Expired - Fee Related
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Abstract
The utility model relates to a vehicle speed display device which is characterized in that the utility model comprises a vehicle speed sensor, a combination relay, a displaying light cluster and a vehicle-carried power supply, wherein the output end of the vehicle speed sensor is connected to the input end of the combination relay of which the output end is connected to the displaying light cluster. Because of the adoption of the vehicle speed display device, drivers of back vehicles can get obvious speed prompting signals of the vehicle and can clearly see signal display for running speeds of front vehicles within safety distances, which greatly improves running safety. The utility model has the advantages of simple structure and low cost and is suitable for various motor vehicles.
Description
Technical field
The utility model relates to a kind of vehicle display device, particularly a kind of device that is used to show car speed.
Background technology
Motor vehicles are when road and running on expressway, and rear-end collision takes place often, bring great loss for society and individual.The reason that knocks into the back is because the driver can not judge the speed of the vehicle that travels in the same way in the place ahead mostly, when the vehicle in the place ahead has slowed down, owing to the reduce-speed sign that does not show to front vehicle, back vehicle thinks that still the vehicle in the place ahead is travelling by original speed, and do not have a corresponding slow-down, guaranteeing and the vehicle of front has certain safe distance, make the vehicle collision of back vehicle and front, and the formation chain reaction, cause continuously and knock into the back.
Summary of the invention
Point out the device defect of this car present speed on the existing vehicle back vehicle in order to overcome, it is a kind of simple, practical that the purpose of this utility model is to provide, can give the back vehicle by basic, normal, high fast classification display with road speed, prevent or reduce the device of generation rear-end collision.
The purpose of this utility model is achieved in that a kind of speed display apparatus, it is characterized in that: it comprises vehicle speed sensor, banked relay, display lamp group and vehicle power; Wherein the output terminal of vehicle speed sensor is connected to the input end of banked relay; The output terminal of banked relay is connected to the display lamp group.
The combinations thereof relay is made up of the independent relay of an above number, an output terminal of one end of each independent relay coil and vehicle speed sensor is corresponding to be connected, the other end of coil all is connected to the positive pole of vehicle power, the contact switch moving plate of each independent relay all is connected to the display lamp group, the equal ground connection of contact switch stator of each independent relay.
Above-mentioned display lamp group is made up of the independent light-emitting device of an above number, the contact switch moving plate of an independent relay in one end of each independent light-emitting device and the banked relay is corresponding to be connected, and the other end of independent light-emitting device all joins with the vehicle power positive pole.
The beneficial effects of the utility model are: owing to adopted speed display apparatus, give back vehicle with significantly this vehicle speed cue, back vehicle can see clearly that within safe distance the signal of the travel speed of front vehicles shows, has improved traveling security greatly.This apparatus structure is simple, and cost is low, is applicable to various motor vehicles.
Description of drawings
Below in conjunction with accompanying drawing, the utility model is further described.
Fig. 1 is a functional-block diagram of the present utility model.
Fig. 2 is an embodiment circuit diagram of the present utility model.
Embodiment
Embodiment: referring to Fig. 1 and Fig. 2 as can be known, a kind of speed display apparatus, it comprises vehicle speed sensor, banked relay, display lamp group and vehicle power; Wherein the output terminal of vehicle speed sensor is connected to the input end of banked relay; The output terminal of banked relay is connected to the display lamp group.
In this example, banked relay is made up of relay J 1, J2, J3, coil one end of relay J 1, J2, J3 joins with three output terminals of vehicle speed sensor respectively, the other end of the coil of relay J 1, J2, J3 connects the positive pole of vehicle power, the contact switch moving plate of relay J 1, J2, J3 is connected respectively to the display lamp group, the equal ground connection of contact switch stator of relay J 1, J2, J3.
Above-mentioned display lamp group is made up of light-emitting device D1, D2, D3, the end of light-emitting device D1, D2, D3 respectively with banked relay in corresponding connection of contact switch moving plate of relay J 1, J2, J3, the other end of light-emitting device D1, D2, D3 and vehicle power positive pole join.
As seen, this example has adopted three independent relays and three independent light-emitting devices.Vehicle speed sensor is taked commercially available standard vehicle speed sensor among the figure.Some output terminals of vehicle speed sensor are combined into low speed, middling speed, three output terminals of high speed, the grading range of speed can be adjusted arbitrarily, such as, 20～40 kilometers output terminal on the vehicle speed sensor is combined into the low speed output terminal, 40～80 kilometers output terminal is combined into the middling speed output terminal, and the output terminal more than 80 kilometers is combined into high-speed output end.
When car speed was lower than 20 kilometers, the not conducting of circuit of vehicle speed sensor inside in relay J 1, J2, J3, did not all have electric current to flow through, and three relays all are failure to actuate, and the light-emitting device in the display lamp group is not luminous.When car speed more than 20 kilometers the time, low speed output terminal conducting in the vehicle speed sensor, vehicle power forms the closed-loop path by the coil of relay J 1 and the circuit of onboard sensor inside, relay J 1 adhesive, connect the light-emitting device D1 in vehicle power and the display lamp group, the positive pole of vehicle power forms the loop by light-emitting device D1, and D1 is luminous, represents that present travel speed is lower.
When the speed of a motor vehicle surpasses 40 kilometers, also conducting of middling speed output terminal in the vehicle speed sensor, vehicle power forms the closed-loop path by the coil of relay J 2 and the circuit of onboard sensor inside, relay J 2 adhesives, connect the light-emitting device D2 in vehicle power and the display lamp group, at this moment, D1 and D2 are luminous, and the expression travel speed is in middling speed.
When the speed of a motor vehicle surpasses 80 kilometers, also conducting of high-speed output end in the vehicle speed sensor, vehicle power forms the closed-loop path by the coil of relay J 3 and the circuit of onboard sensor inside, relay J 3 adhesives, connect the light-emitting device D3 in vehicle power and the display lamp group, at this moment, D1, D2 and D3 are luminous, and the expression travel speed is in high speed.
During vehicle deceleration, the circuit of vehicle speed sensor inside ends successively, and relay J 3, J2, J1 also disconnect successively, and light-emitting device D3, D2, D1 extinguish successively.
Certainly, in practice, can also export divide thinner to the speed of vehicle speed sensor, a number that only needs to increase corresponding independent number of relays and independent light-emitting device gets final product.
The display lamp group can place the top or the rear portion of vehicle, and the display lamp group also can be determined the size and the brightness of each independent light-emitting device according to actual conditions and needs, makes the signal of demonstration keep clear in certain distance.
Claims (3)
1, a kind of speed display apparatus is characterized in that: it comprises vehicle speed sensor, banked relay, display lamp group and vehicle power; Wherein the output terminal of vehicle speed sensor is connected to the input end of banked relay; The output terminal of banked relay is connected to the display lamp group.
2, a kind of speed display apparatus according to claim 1, it is characterized in that: described banked relay is made up of the independent relay of an above number, an output terminal of one end of each independent relay coil and vehicle speed sensor is corresponding to be connected, the other end of coil all is connected to the positive pole of vehicle power, the contact switch moving plate of each independent relay all is connected to the display lamp group, the equal ground connection of contact switch stator of each independent relay.
3, a kind of speed display apparatus according to claim 1, it is characterized in that: described display lamp group is made up of the independent light-emitting device of an above number, the contact switch moving plate of an independent relay in one end of each independent light-emitting device and the banked relay is corresponding to be connected, and the other end of independent light-emitting device all joins with the vehicle power positive pole.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420061708 CN2739643Y (en) | 2004-10-15 | 2004-10-15 | Motor vehicle speed display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 200420061708 CN2739643Y (en) | 2004-10-15 | 2004-10-15 | Motor vehicle speed display device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2739643Y true CN2739643Y (en) | 2005-11-09 |
Family
ID=35354709
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 200420061708 Expired - Fee Related CN2739643Y (en) | 2004-10-15 | 2004-10-15 | Motor vehicle speed display device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2739643Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107209988A (en) * | 2014-10-08 | 2017-09-26 | 法雷奥开关和传感器有限责任公司 | Determine motor vehicles close to the method for the optimum speed of traffic lights |
-
2004
- 2004-10-15 CN CN 200420061708 patent/CN2739643Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107209988A (en) * | 2014-10-08 | 2017-09-26 | 法雷奥开关和传感器有限责任公司 | Determine motor vehicles close to the method for the optimum speed of traffic lights |
| CN107209988B (en) * | 2014-10-08 | 2021-03-09 | 法雷奥开关和传感器有限责任公司 | Method for determining the optimal speed of a motor vehicle approaching a traffic light |
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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: 20051109 Termination date: 20091116 |