CN210234888U - Uninterrupted power supply and uninterrupted restarting circuit mainboard of automobile multimedia equipment - Google Patents
Uninterrupted power supply and uninterrupted restarting circuit mainboard of automobile multimedia equipment Download PDFInfo
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- CN210234888U CN210234888U CN201921067637.7U CN201921067637U CN210234888U CN 210234888 U CN210234888 U CN 210234888U CN 201921067637 U CN201921067637 U CN 201921067637U CN 210234888 U CN210234888 U CN 210234888U
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Abstract
The utility model provides a can let the car when the ignition starts, the car multimedia device that equipment such as the radio of car, visual backing a car navigation, stereo set, vehicle event data recorder can not shut down and restart does not cut off power supply and does not restart circuit mainboard. The uninterrupted restarting-free circuit mainboard of the automobile multimedia equipment comprises vehicle-mounted multimedia equipment; the vehicle-mounted multimedia equipment is provided with a normal power supply, an ACC power line and a grounding wire; a diode for controlling the current direction to flow from an ACC control end to the vehicle-mounted multimedia equipment is connected in series on the ACC power line; a capacitor is arranged between the diode and the grounding wire; the positive electrode of the capacitor is electrically connected with the diode, and the negative electrode of the capacitor is electrically connected with the grounding wire. By adopting the uninterrupted restarting-free circuit mainboard of the automobile multimedia equipment, the shutdown and restarting of the vehicle-mounted multimedia equipment can be avoided, the normal continuous work of the automobile data recorder can be ensured, and the automobile data recorder can continuously record the automobile running condition.
Description
Technical Field
The patent of the utility model relates to an on-vehicle multi-media power-off protection device, concretely relates to car multimedia equipment does not cut off the power supply and does not restart circuit mainboard.
Background
With the development of society, at present, automobiles are more and more, and people like to install automobile sound equipment, visual car backing navigation and the like in the automobiles. Since various criminal behaviors such as porcelain collision, fraud, car stealing and the like threaten the lives of people, a vehicle event data recorder is required to be installed, and evidence can be left in a critical time.
However, when the car is started by the key for ignition, the radio, the visual car backing navigation, the audio and the automobile data recorder which are not provided with the backup battery in the car are all shut down and restarted, so that the visual temporary failure of the car backing, the loss of the listening story and the loss of the key evidence of a few seconds of the automobile data recorder which is recording are possibly caused.
When the automobile is ignited by a key, the working voltage of the automobile is instantly reduced to be very low due to the large current, so that the voltage is insufficient to supply power to equipment such as a radio, a visual car backing navigation device, a sound device, a driving recorder and the like of the automobile, the equipment is shut down, and when the automobile is ignited successfully, the voltage is recovered to be normal, and the equipment is restarted to run.
SUMMERY OF THE UTILITY MODEL
The utility model provides a problem provide a can let the car when the ignition starts, the car multimedia device that equipment such as the radio of car, visual car backing navigation, stereo set, vehicle event data recorder can not shut down and restart does not cut off the power supply and does not restart circuit mainboard.
In order to achieve the above object, the utility model discloses an adopted technical scheme is: the uninterrupted power supply non-restarting circuit mainboard for the automobile multimedia equipment comprises vehicle-mounted multimedia equipment; the vehicle-mounted multimedia equipment is provided with a normal power supply, an ACC power line and a grounding wire;
a diode for controlling the current direction to flow from an ACC control end to the vehicle-mounted multimedia equipment is connected in series on the ACC power line; a capacitor is arranged between the diode and the grounding wire; the positive electrode of the capacitor is electrically connected with the diode, and the negative electrode of the capacitor is electrically connected with the grounding wire.
Specifically, the diode is a 5399 diode.
Specifically, the capacitance is 25V1000 uf.
Specifically, the vehicle-mounted multimedia equipment comprises a radio, a visual car backing navigation device, a sound device and a vehicle event data recorder.
The utility model has the advantages that: the uninterrupted restarting-free circuit mainboard of the automobile multimedia equipment can avoid shutdown restarting of some radio, visual backing navigation, audio and automobile data recorder without standby batteries in the automobile when the automobile is ignited by a starting key; meanwhile, the visual temporary failure of backing the car and the loss of the listening storyline can be avoided; the normal continuous work of vehicle event data recorder can be guaranteed, and the vehicle event data recorder can continuously record the driving situation.
Drawings
Fig. 1 is the embodiment of the utility model provides an in the embodiment of the circuit block diagram of automobile multimedia device uninterrupted power restart circuit mainboard.
Detailed Description
The following detailed description of embodiments of the present invention will be made with reference to the accompanying drawings.
In the embodiment of the present invention, as shown in fig. 1, the uninterrupted power supply of the automotive multimedia device does not restart the circuit board, which includes an onboard multimedia device; the vehicle-mounted multimedia equipment is provided with a normal power supply, an ACC power line and a grounding wire;
a diode for controlling the current direction to flow from an ACC control end to the vehicle-mounted multimedia equipment is connected in series on the ACC power line; a capacitor is arranged between the diode and the grounding wire; the positive electrode of the capacitor is electrically connected with the diode, and the negative electrode of the capacitor is electrically connected with the grounding wire.
Specifically, the diode is a 5399 diode. Specifically, the capacitance is 25V1000 uf. Specifically, the vehicle-mounted multimedia equipment comprises a radio, a visual car backing navigation device, a sound device and a vehicle event data recorder.
In the working process, the working voltage of the automobile is instantly reduced to be very low due to the large current at the moment that the automobile is ignited by a key; at the moment, a diode for controlling the current direction to flow from an ACC control terminal to the vehicle-mounted multimedia equipment is connected in series on the ACC power line; a capacitor is arranged between the diode and the grounding wire; the positive electrode of the capacitor is electrically connected with the diode, and the negative electrode of the capacitor is electrically connected with the grounding wire. When the voltage of the ACC power line is normal, the capacitor is charged; when the instantaneous voltage for starting the key ignition is reduced, the capacitor discharges, and the capacitor provides enough voltage for the vehicle-mounted multimedia equipment at the moment. Thereby avoiding the radio, the visual car backing navigation, the sound and the automobile data recorder of the automobile from being shut down due to insufficient voltage; thus avoiding the restarting of the vehicle ignition multimedia equipment.
In summary, the uninterrupted restarting-free circuit mainboard of the automobile multimedia equipment can prevent the shutdown and restarting of some radios, visual reversing navigation, audio equipment and automobile data recorders without standby batteries in the automobile when the automobile is ignited by a starting key; meanwhile, the visual temporary failure of backing the car and the loss of the listening storyline can be avoided; the normal continuous work of vehicle event data recorder can be guaranteed, and the vehicle event data recorder can continuously record the driving situation.
While the embodiments of the present invention have been described in detail with reference to the accompanying drawings, the scope of the invention should not be limited thereto. Various modifications and changes may be made by those skilled in the art without inventive step within the scope of the appended claims.
Claims (4)
1. Automobile multimedia equipment does not cut off power supply and does not restart circuit mainboard, its characterized in that: comprises a vehicle-mounted multimedia device; the vehicle-mounted multimedia equipment is provided with a normal power supply, an ACC power line and a grounding wire;
a diode for controlling the current direction to flow from an ACC control end to the vehicle-mounted multimedia equipment is connected in series on the ACC power line; a capacitor is arranged between the diode and the grounding wire; the positive electrode of the capacitor is electrically connected with the diode, and the negative electrode of the capacitor is electrically connected with the grounding wire.
2. The automobile multimedia device uninterrupted power supply and uninterrupted power supply restarting circuit main board according to claim 1, wherein: the diode adopts 5399 diode.
3. The automobile multimedia device uninterrupted power supply and uninterrupted power supply restarting circuit main board according to claim 1, wherein: the capacitance adopts 25V1000uf capacitance.
4. The automobile multimedia device uninterrupted power supply and uninterrupted power supply restarting circuit main board according to claim 1, wherein: the vehicle-mounted multimedia equipment comprises a radio, a visual car backing navigation device, a sound device and a vehicle event data recorder.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921067637.7U CN210234888U (en) | 2019-07-09 | 2019-07-09 | Uninterrupted power supply and uninterrupted restarting circuit mainboard of automobile multimedia equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201921067637.7U CN210234888U (en) | 2019-07-09 | 2019-07-09 | Uninterrupted power supply and uninterrupted restarting circuit mainboard of automobile multimedia equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210234888U true CN210234888U (en) | 2020-04-03 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201921067637.7U Active CN210234888U (en) | 2019-07-09 | 2019-07-09 | Uninterrupted power supply and uninterrupted restarting circuit mainboard of automobile multimedia equipment |
Country Status (1)
| Country | Link |
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| CN (1) | CN210234888U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254379A (en) * | 2019-07-09 | 2019-09-20 | 四川朗勃科技有限公司 | Car multimedia equipment does not restart the circuit board without continuous power supply |
-
2019
- 2019-07-09 CN CN201921067637.7U patent/CN210234888U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110254379A (en) * | 2019-07-09 | 2019-09-20 | 四川朗勃科技有限公司 | Car multimedia equipment does not restart the circuit board without continuous power supply |
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