CN203032605U - Control circuit for motormeter safety belt indicator light - Google Patents
Control circuit for motormeter safety belt indicator light Download PDFInfo
- Publication number
- CN203032605U CN203032605U CN 201320039189 CN201320039189U CN203032605U CN 203032605 U CN203032605 U CN 203032605U CN 201320039189 CN201320039189 CN 201320039189 CN 201320039189 U CN201320039189 U CN 201320039189U CN 203032605 U CN203032605 U CN 203032605U
- Authority
- CN
- China
- Prior art keywords
- safety belt
- indicator light
- indicator lamp
- safety
- belt buckle
- 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 - Fee Related
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- Automotive Seat Belt Assembly (AREA)
Abstract
The utility model relates to a control circuit for a motormeter safety belt indicator light. The control circuit for the motormeter safety belt indicator light comprises a safety belt indicator light, wherein high voltage is applied at one end of the safety belt indicator light and the other end of the safety belt indicator light is connected with a combination meter microprogrammed control unit (MCU). The combination meter MCU is connected with ground after being sequentially connected with a first resistor, a diode, a safety belt buckle in series. A second resistor branch is arranged between the dioxide and the safety belt buckle. Low voltage is applied at the outer end of a second resistor. When the safety belt buckle is buckled up, the second resistor is communicated with the safety belt buckle and connected with the ground. The combination meter MCU controls the safety belt indicator light to be cut off and turned off. When the safety belt buckle is disconnected, the combination meter MCU controls the safety belt indicator light to be turned on. The control circuit for the motormeter safety belt indicator light can accurately show that whether a safety belt is buckled up or not, so that safety and reliability in a driving process can be improved.
Description
Technical field
The utility model relates to a kind of auto meter safety strap indicator lamp control circuit.
Background technology
Safety strap indicator lamp on the combination instrument is that some combination instrument also has the alarm of sound certainly to the important indicator of chaufeur caution number.Realize safety strap indicator lamp lighting mode difference according to different vehicles, have directly by safety belt buckle connect the back with communicate and light, whether the inside chip that passes through that has detects seat belt switch voltage system and detects chaufeur and fasten one's safety belt, whether two kinds of differences that drive the safety strap indicator lamp are handled by chip, certainly the latter's price is more expensive than the former, and the utility model is exactly to solve to chaufeur to remind safety strap indicator lamp control circuit on a kind of combination instrument of whether fastening the safety belt and forming.
The utility model content
The purpose of this utility model is to overcome the deficiencies in the prior art, adapts to the reality needs, and a kind of auto meter safety strap indicator lamp control circuit is provided.
In order to realize the purpose of this utility model, the technical solution adopted in the utility model is:
A kind of auto meter safety strap indicator lamp control circuit, comprise the safety strap indicator lamp, comprise the safety strap indicator lamp, described safety strap indicator lamp one end adds high potential, the other end is connected with combination instrument MCU, combination instrument MCU first resistance of connecting successively, diode, ground connection behind the safety belt buckle, tell second resistance branch between described diode and the safety belt buckle, the described second resistance outer end adds low voltage, in the time of on the safety belt buckle card, second resistance is communicated with ground connection with safety belt buckle, and combination instrument MCU control safety strap indicator lamp opens circuit and extinguishes, when safety belt buckle disconnected, combination instrument MCU control safety strap indicator lamp lighted.
The beneficial effects of the utility model are:
Can show accurately whether safety strap is buckled, improve safety and the reliability in the driving process.
Description of drawings
Fig. 1 is schematic circuit diagram of the present utility model.
The specific embodiment
Below in conjunction with drawings and Examples the utility model is further specified:
Embodiment: referring to Fig. 1.
A kind of auto meter safety strap indicator lamp control circuit, comprise the safety strap indicator lamp, comprise safety strap indicator lamp 1, described safety strap indicator lamp 1 one ends add high potential, in the present embodiment, safety strap indicator lamp one end adds 12V voltage, safety strap indicator lamp 1 other end is connected with combination instrument MCU, combination instrument MCU first resistance 2 of connecting successively, diode 3, safety belt buckle 4 back ground connection are told second resistance branch between described diode 3 and the safety belt buckle 4, described second resistance 5 outer ends add low voltage, in the present embodiment, second resistance, 5 outer ends add 5V voltage, when safety belt buckle 4 cards are gone up, second resistance 2 is communicated with ground connection with safety belt buckle 4, combination instrument MCU detects 0.5V voltage, and control safety strap indicator lamp 1 opens circuit and extinguishes, when safety belt buckle 4 disconnects, combination instrument MCU detects 5V voltage, and control safety strap indicator lamp lights.
What embodiment of the present utility model announced is preferred embodiment; but be not limited thereto; those of ordinary skill in the art; very easily according to above-described embodiment; understand spirit of the present utility model; and make different amplifications and variation, but only otherwise break away from spirit of the present utility model, all in protection domain of the present utility model.
Claims (1)
1. auto meter safety strap indicator lamp control circuit, comprise the safety strap indicator lamp, it is characterized in that: comprise the safety strap indicator lamp, described safety strap indicator lamp one end adds high potential, the other end is connected with combination instrument MCU, combination instrument MCU first resistance of connecting successively, diode, ground connection behind the safety belt buckle, tell second resistance branch between described diode and the safety belt buckle, the described second resistance outer end adds low voltage, in the time of on the safety belt buckle card, second resistance is communicated with ground connection with safety belt buckle, and combination instrument MCU control safety strap indicator lamp opens circuit and extinguishes, when safety belt buckle disconnected, combination instrument MCU control safety strap indicator lamp lighted.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320039189 CN203032605U (en) | 2013-01-25 | 2013-01-25 | Control circuit for motormeter safety belt indicator light |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320039189 CN203032605U (en) | 2013-01-25 | 2013-01-25 | Control circuit for motormeter safety belt indicator light |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203032605U true CN203032605U (en) | 2013-07-03 |
Family
ID=48684746
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320039189 Expired - Fee Related CN203032605U (en) | 2013-01-25 | 2013-01-25 | Control circuit for motormeter safety belt indicator light |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203032605U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109034061A (en) * | 2018-07-26 | 2018-12-18 | 周小凤 | Big data processing formula bodily form identifying system |
-
2013
- 2013-01-25 CN CN 201320039189 patent/CN203032605U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109034061A (en) * | 2018-07-26 | 2018-12-18 | 周小凤 | Big data processing formula bodily form identifying system |
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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: 20130703 Termination date: 20200125 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |