CN201774251U - Automobile power protection device - Google Patents

Automobile power protection device Download PDF

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Publication number
CN201774251U
CN201774251U CN201020265942XU CN201020265942U CN201774251U CN 201774251 U CN201774251 U CN 201774251U CN 201020265942X U CN201020265942X U CN 201020265942XU CN 201020265942 U CN201020265942 U CN 201020265942U CN 201774251 U CN201774251 U CN 201774251U
Authority
CN
China
Prior art keywords
automobile power
power source
automobile
power supply
diode
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
Application number
CN201020265942XU
Other languages
Chinese (zh)
Inventor
韩兴亮
焦明明
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
China National Heavy Duty Truck Group Jinan Power Co Ltd
China National Heavy Duty Truck Group Taian Wuyue Special Vehicle Co Ltd
Original Assignee
China National Heavy Duty Truck Group Jinan Power Co Ltd
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by China National Heavy Duty Truck Group Jinan Power Co Ltd filed Critical China National Heavy Duty Truck Group Jinan Power Co Ltd
Priority to CN201020265942XU priority Critical patent/CN201774251U/en
Application granted granted Critical
Publication of CN201774251U publication Critical patent/CN201774251U/en
Anticipated expiration legal-status Critical
Expired - Fee Related legal-status Critical Current

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Abstract

The utility model discloses an automobile power protection device, which comprises a storage battery switch, a diode and an intermediate relay. The storage battery switch is used for being connected with an automobile power supply. When the automobile power supply is correctly mounted, a control end of the intermediate relay is connected to negative poles of all automobile control module circuits, and a controlled end of the intermediate relay connected with the automobile power supply is used for controlling all the automobile control module circuits to be conducted with the automobile power supply. When the automobile power supply is reversely connected, a positive pole of the diode is connected with a negative pole of the automobile power supply, a negative pole of the diode is connected with a positive pole of the automobile power supply by the aid of an alarm branch through the storage battery switch and used for connecting the alarm branch to send out alarm signals. The automobile power protection device has the advantages of protection of electric equipment of an integral automobile and prevention of fire disasters.

Description

The automobile power source protective device
Technical field
The utility model relates to a kind of automobile power source protective device, can prevent that power positive cathode from connecing instead, avoids burning electrical appliance and breaking out of fire accident, belongs to technical field of automobile parts.。
Background technology
Along with the continuous development of Hyundai Motor technology, car control computer is more and more universal, as Engine ECU, gearbox ECU, car body control module, air-conditioning control module, ABS etc., all needs a reliable and stable power supply.The power-supply system major part of vehicle is mechanical type, electromagnetic type master switch now, have that control is anodal also a control negative pole, and the storage battery pole makes because of manufacturer and the different directions of purposes also has nothing in common with each other, this just causes easily, and both positive and negative polarity connects anti-when changing storage battery, and burns electrical appliance and the breaking out of fire accident causes unnecessary loss.。
Summary of the invention
The utility model provides a kind of automobile power source protective device at the deficiencies in the prior art.
For achieving the above object, the utility model has adopted following technical scheme:
A kind of automobile power source protective device comprises switch of battery, diode and auxiliary relay, and described switch of battery is used for linking to each other with automobile power source; When automobile power source was correctly installed, the control end of described auxiliary relay connected the negative pole of each automobile control module circuit, and controlled end links to each other with automobile power source, was used to control each automobile control module circuit and automobile power source and connected; When automobile power source connects inverse time, diode cathode connects the automobile power source negative pole, and diode cathode links to each other through switch of battery and automobile power source positive pole by the warning branch road, is used to connect the warning branch road and sends alarm signal.
Among the utility model embodiment, described warning is propped up the route buzzer and is constituted
Among the utility model embodiment, described warning is propped up route voice integrated chip and is constituted.
Operation principle of the present utility model:
When automobile power source is installed when correct, relay coil is got back to the storage battery negative pole between electric current stream, closed each automobile control module circuit of connecting of switch of battery.When automobile power source connects inverse time, flow through diode, warning branch road, switch of battery of electric current got back to automobile power source, at this moment the branch road of reporting to the police can send the alarm automobile power source and connect instead, relay because of the wire loop string have switching diode by, each automobile control module circuit is disconnected.
The beneficial effects of the utility model: protected the power consumption equipment of car load, prevented the generation of fire.
Description of drawings
Below in conjunction with the drawings and specific embodiments the utility model is further specified.
Fig. 1 is the structural representation of utility model.
Among the figure 1, key switch; 2, neutral position switch; 3, switch of battery; 4, auxiliary relay: 5, cranking-motor relay: 6, diode: 7, warning branch road: 8, automobile power source: 9, generator: 10, starter, F1, insurance.
Embodiment
1 one kinds of automobile power source protective devices comprise switch of battery 3, diode 6 and auxiliary relay 4 with reference to the accompanying drawings, and described switch of battery 3 is used for linking to each other with automobile power source 8; When automobile power source 8 correct installations, the control end of described auxiliary relay 4 connects the negative pole of each automobile control module circuit, and controlled end links to each other with automobile power source 8, is used to control each automobile control module circuit and automobile power source 8 connections; When automobile power source 8 connects inverse time, diode cathode connects automobile power source 8 negative poles, and diode cathode links to each other through switch of battery 3 and automobile power source 8 positive poles by the warning branch road, is used to connect the warning branch road and sends alarm signal.
Described warning is propped up the route buzzer and is constituted, and those skilled in the art can expect certainly, and described warning is propped up route voice integrated chip and constituted.
The utility model course of work is as follows: when automobile power source 8 correct installations, described electric current is flowed through by switch of battery 3 and is insured the coil control end that F1 arrives auxiliary relay 4 again, it is that generator 9, starter 10, cranking-motor relay 5 and key switch 1 and neutral position switch 2 form loops that the internal switch of auxiliary relay 4 is made the electrical appliance negative pole and the power supply 8 negative pole conductings of car load, car load electrical appliance by adhesive; This moment diode 6 act as unidirectional conducting, blocked the electric current of warning branch road 7, warning branch road 7 is not worked.When automobile power source 8 both positive and negative polarities are connect inverse time, power supply 8 diagram lower ends become positive pole, and diode 6 conductings form the loop when pressing switch of battery 3, and warning branch road 7 is reported to the police.This moment, the diode of auxiliary relay 4 coiler parts played the cut-off current effect, made auxiliary relay 4 switches not by adhesive, had blocked the power supply of car load, had played protective effect.
Basic principle of the present utility model and advantage have more than been described.The utility model is not restricted to the described embodiments, and in the prerequisite that does not break away from the utility model scope, those skilled in the art can do many changes and improvements as required, can select to have the circuit of alarm lamp as warning branch road 7.The utility model protection range should be defined by appending claims and equivalent thereof.

Claims (3)

1. an automobile power source protective device is characterized in that comprising switch of battery (3), diode (6) and auxiliary relay (4), and described switch of battery (3) is used for linking to each other with automobile power source (8); When automobile power source (8) when correctly installing, the control end of described auxiliary relay (4) connects the negative pole of each automobile control module circuit, and controlled end links to each other with automobile power source (8), is used to control each automobile control module circuit and automobile power source (8) and connects; When automobile power source (8) connects inverse time, diode cathode connects automobile power source (8) negative pole, and diode cathode links to each other through switch of battery (3) and automobile power source (8) positive pole by the warning branch road, is used to connect the warning branch road and sends alarm signal.
2. according to claim automobile power source protective device, it is characterized in that: described warning is propped up the route buzzer and is constituted.
3. according to claim automobile power source protective device, it is characterized in that: described warning is propped up route voice integrated chip and is constituted.
CN201020265942XU 2010-07-21 2010-07-21 Automobile power protection device Expired - Fee Related CN201774251U (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
CN201020265942XU CN201774251U (en) 2010-07-21 2010-07-21 Automobile power protection device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CN201020265942XU CN201774251U (en) 2010-07-21 2010-07-21 Automobile power protection device

Publications (1)

Publication Number Publication Date
CN201774251U true CN201774251U (en) 2011-03-23

Family

ID=43754088

Family Applications (1)

Application Number Title Priority Date Filing Date
CN201020265942XU Expired - Fee Related CN201774251U (en) 2010-07-21 2010-07-21 Automobile power protection device

Country Status (1)

Country Link
CN (1) CN201774251U (en)

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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: 20110323

Termination date: 20140721

EXPY Termination of patent right or utility model