Device for dealing with emergency power failure after automobile collision

Abstract

The invention relates to the technical field of automobile safety, and particularly discloses a device for dealing with emergency power failure after automobile collision, a DC + of a time relay is connected with a power supply positive electrode of an automobile central airbag sensor assembly, and a DC-of the time relay is connected with a negative electrode of a main power-off switch; a trigger signal S + of the time relay is connected with a control input end of the automobile airbag inflating device, and a trigger signal S-of the time relay is connected with a control output end of the automobile airbag inflating device; a common end of the time relay is connected with DC +, and a normally open contact of the time relay is connected with the main power-off switch; the main power-off switch is connected with a main power supply; when the automobile is collided and the safety air bag is triggered, the device can cut off a main power supply in time, so that dangers such as fire hazards caused by the conditions of short circuit after collision, continuous oil supply of an oil tank and an oil pump after an engine oil pipe is broken by collision and the like are effectively avoided, and the safety of the automobile after collision is greatly improved.

Description

Technical Field

[0001] This invention relates to the field of automotive safety technology, specifically to a device for emergency power cut-off after a car collision. Background Technology

[0002] During a collision, a car may experience a short circuit. Especially if the collision ruptures the engine fuel line, the fuel pump continuing to supply fuel can easily cause a fire or other more serious hazards. To ensure safety after the airbags deploy following a collision, a device is needed to promptly cut off the main power supply after the collision, preventing electrical problems from exacerbating the accident.

[0003] Therefore, a device to handle emergency power cut-off after a car collision has become an urgent problem to be solved. Summary of the Invention

[0004] The technical problem to be solved by the present invention is to provide a device for emergency power cut-off after a car collision, which can cut off the main power supply of the car in time when a car collision occurs and the airbags are deployed, so as to prevent more serious dangers caused by short circuits and other problems.

[0005] To solve the above-mentioned technical problems, the technical solution provided by the present invention is: a device for dealing with emergency power cut-off after a car collision, comprising a time relay and a main power cut-off switch;

[0006] The DC+ terminal of the time relay is connected to the positive terminal of the power supply of the vehicle's central airbag sensor assembly, and the DC- terminal of the time relay is connected to the negative terminal of the main power-off switch.

[0007] The trigger signal S+ of the time relay is connected to the control input terminal of the car airbag inflator, and the trigger signal S- of the time relay is connected to the control output terminal of the car airbag inflator.

[0008] The common terminal of the time relay is connected to DC+, and the normally open contact of the time relay is connected to the main power-off switch.

[0009] The main power-off switch is connected to the main power supply;

[0010] When the car airbag inflator is triggered, the trigger signal S+ and trigger signal S- are transmitted to the time relay. After a delay, the normally open contact is triggered to close, the main power-off switch coil is energized, and the main power supply is disconnected through the electromagnetic slider inside.

[0011] Furthermore, the control input terminals of the two airbag inflators on the vehicle are connected in parallel to the trigger signal S+ of the time relay, and the control output terminals of the two airbag inflators on the vehicle are connected in parallel to the trigger signal S- of the time relay.

[0012] Furthermore, the total power supply is a 12V DC power supply.

[0013] The advantages of this invention compared to the prior art are as follows: When a car collision occurs and the airbag is triggered, the device of this invention can cut off the main power supply in time, effectively avoiding the dangers of fire caused by short circuits after the collision and the continuous fuel pump supplying fuel after the engine oil pipe is broken, thus greatly improving the safety of the car after a collision. Attached Figure Description

[0014] Figure 1 This is a circuit connection diagram of a device for emergency power cut-off after a car collision, according to the present invention.

[0015] As shown in the figure: 1. Time relay, 2. Main power switch, 3. DC+, 4. DC-, 5. Trigger signal S+, 6. Trigger signal S-, 7. Common terminal, 8. Normally open contact, 9. Main power supply. Detailed Implementation

[0016] In the description of this invention, it should be understood that the terms "upper", "lower", "front", "rear", "left", "right", "inner", "outer", "vertical", "circumferential", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are only for the convenience of describing this invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on this invention.

[0017] In this invention, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention according to the specific circumstances.

[0018] The following is a detailed description of a device for emergency power cut-off after a car collision, in conjunction with the accompanying drawings.

[0019] Combined with appendix Figure 1 The specific implementation process of the device for emergency power cut-off after a car collision according to the present invention is as follows:

[0020] A device for emergency power cut-off after a car collision includes a time relay 1 and a main power cut-off switch 2.

[0021] DC+3 of time relay 1 is connected to the positive power supply of the central airbag sensor assembly of the car, and DC-4 of time relay 1 is connected to the negative power supply of the main power switch 2; the trigger signal S+5 of time relay 1 is connected to the control input terminal of the car airbag inflator, and the trigger signal S-6 of time relay 1 is connected to the control output terminal of the car airbag inflator; the common terminal 7 of time relay 1 is connected to DC+3, and the normally open contact 8 of time relay 1 is connected to the main power switch 2.

[0022] The main power switch 2 is connected to the main power supply 9, which is a 12V DC power supply.

[0023] When a car collision occurs and the airbag inflator is triggered, the trigger signal S+5 and trigger signal S-6 are transmitted to the time relay 1. After a delay (about 1 second), the normally open contact 8 is triggered to close, the coil of the main power switch 2 is energized, and the main power supply 9 is disconnected through the electromagnetic slider inside.

[0024] In addition, the control input terminals of the two airbag inflators on the car are connected in parallel to the trigger signal S+5 of the time relay 1, and the control output terminals of the two airbag inflators on the car are connected in parallel to the trigger signal S-6 of the time relay 1. This ensures that when any airbag inflator is triggered, it can transmit a signal to the time relay 1, thus guaranteeing the reliability of the overall power-off operation.

[0025] The present invention and its embodiments have been described above. This description is not restrictive, and the accompanying drawings are only one embodiment of the present invention; the actual structure is not limited thereto. In conclusion, if those skilled in the art are inspired by this description and design similar structures and embodiments without departing from the spirit of the invention, such designs should fall within the protection scope of the present invention.

Claims

1. A device for emergency power cut-off after a car collision, characterized in that: Including time relays and main power-off switches; The DC+ terminal of the time relay is connected to the positive terminal of the power supply of the vehicle's central airbag sensor assembly, and the DC- terminal of the time relay is connected to the negative terminal of the main power-off switch. The trigger signal S+ of the time relay is connected to the control input terminal of the car airbag inflator, and the trigger signal S- of the time relay is connected to the control output terminal of the car airbag inflator. The common terminal of the time relay is connected to DC+, and the normally open contact of the time relay is connected to the main power-off switch. The main power-off switch is connected to the main power supply; When the car airbag inflator is triggered, the trigger signal S+ and trigger signal S- are transmitted to the time relay. After a delay, the normally open contact is triggered to close, the main power-off switch coil is energized, and the main power supply is disconnected through the electromagnetic slider inside.

2. The device for emergency power cut-off after a car collision according to claim 1, characterized in that: The control input terminals of the two airbag inflators on the vehicle are connected in parallel to the trigger signal S+ of the time relay, and the control output terminals of the two airbag inflators on the vehicle are connected in parallel to the trigger signal S- of the time relay.

3. The device for emergency power cut-off after a car collision according to claim 2, characterized in that: The total power supply is a 12V DC power supply.

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