CN203601217U

CN203601217U - Automatic heating protecting system of window wiper

Info

Publication number: CN203601217U
Application number: CN201320801228.1U
Authority: CN
Inventors: 张琼
Original assignee: Shandong University of Technology
Current assignee: Shandong University of Technology
Priority date: 2013-12-09
Filing date: 2013-12-09
Publication date: 2014-05-21
Anticipated expiration: 2023-12-09

Abstract

The utility model provides an automatic heating protecting system of a window wiper. The automatic heating and protecting system of the window wiper is mainly characterized in that when the window wiper works normally, currents flow through a window wiper motor, and the window wiper starts to work; when the window wiper is frozen due to cold weather, the currents passing through the window wiper motor are prevented from being too large so that the window wiper motor can be protected, and meanwhile a window wiper electric heating wire is automatically connected to heat the window wiper; when frost on the window wiper is thawed, the window wiper motor can automatically operate, access of the window wiper electric heating wire is disconnected, and heating to the window wiper is stopped. In order to avoid window wiper mis-heating caused by other faults, an electric heating wire switch is additionally arranged. The automatic heating and protecting system of the window wiper protects the window wiper motor and is used for heating the window wiper to guarantee normal work of the window wiper under necessary conditions, so that the automatic heating and protecting system of the window wiper is beneficial to traveling safety of automobiles, and traffic accidents are avoided.

Description

A kind of windshield wiper Automatic-heating protection system

Technical field

The utility model relates to a kind of window wiper for motor vehicle technical field, is specifically related to a kind of protection system that can Automatic-heating while being frozen for window wiper for motor vehicle.

Background technology

Windshield wiper is generally used for descaling machine motor-car front windshield, but northerly winter, outside air temperature can reach subzero tens degree, and windshield wiper is probably frozen in and cisco unity malfunction.Chaufeur is opened windshield wiper source switch in unwitting situation will make window wiper motor electric current excessive and burn out motor, causes economic loss.And after windshield wiper is frozen in, with regard to cisco unity malfunction, cannot remove vehicle window, cause driver's seat unintelligible, very easily cause traffic accident.

Summary of the invention

The purpose of this utility model is to solve the problems of freezing to bring because of windshield wiper, and the protection system automatically windshield wiper being heated while providing a kind of windshield wiper to be frozen in, heats and automatically stop after windshield wiper thaws, and recovers windshield wiper and normally works.Be achieved through the following technical solutions.

Windshield wiper described in the utility model is protected heating system automatically, is made up of windshield wiper power supply, wiper switch, electromagnetic relay, window wiper motor, divider resistance, heating wire switch, windshield wiper, heating wire.

Principal character of the present utility model is: in the time that windshield wiper is normally worked, electric current flows through window wiper motor, and windshield wiper is started working; In the time that windshield wiper is frozen in because of cold weather, can prevent and then protection window wiper motor excessive by window wiper motor electric current, and automatically connect windshield wiper heating wire simultaneously, windshield wiper is heated; When automatically normal operation disconnect windshield wiper heating wire path of window wiper motor after the freezing thawing on windshield wiper, stop windshield wiper heating.For avoiding other faults to cause the heating of windshield wiper mistake, add heating wire switch.The utility model, by window wiper motor being protected and under necessary condition, windshield wiper being heated to guarantee that windshield wiper normally works, contributes to ride safety of automobile, the generation avoiding traffic accident.

The utility model is compared with the advantage of prior art:

The excessive motor that burns out of current of electric can prevent that windshield wiper from being frozen time.

After windshield wiper is frozen in, automatically windshield wiper is heated, it is thawed.

Whole process completes automatically, does not need chaufeur manually to operate.

Accompanying drawing explanation

Fig. 1 is windshield wiper Automatic-heating protection system schematic diagram described in the utility model.

In Fig. 1, the title of each several part is respectively: 1-power supply, 2-wiper switch, 3-electromagnetic relay, 4-window wiper motor, 5-windshield wiper heating wire, 6-moving armature, 7-heating wire switch, 8-divider resistance.

The specific embodiment

With reference to Fig. 1, the utility model specific embodiments is by the following technical solutions: in the time that windshield wiper is normally worked, chaufeur is opened after wiper switch 2, circuit turn-on, electric current flows to window wiper motor 4 by windshield wiper power supply 1 through electromagnetic relay 3, window wiper motor 4 is working properly, window wiper motor equivalent resistance is relatively large, it is less that divider resistance is got voltage, in circuit, electric current is very little, under the moving armature 6 of electromagnetic relay 3 cannot be inhaled because magnetic field suction is less, heating wire 5 is not worked under this kind of state, only has window wiper motor 4 to work.

In the time that windshield wiper is frozen in, connect after-current at switch 2 and flow to window wiper motor 4 by electromagnetic relay 3, window wiper motor 4 can not normal rotation, the electric current that now flows through window wiper motor 4 becomes large, large electric current flows through electromagnetic relay coil and produces large magnetic field and moving armature 6 is inhaled to lower connection heating wire 5, heating wire 5 participation work.Meanwhile, due to motor rotation blockage, window wiper motor, without counter electromotive force, causes line current to increase.Divider resistance two ends are got voltage and are increased, and window wiper motor both end voltage diminishes, thereby has protected window wiper motor 4.

Heating wire 5 heats windshield wiper, after the freezing thawing on windshield wiper, window wiper motor 4 starts normal work, the normal work of window wiper motor 4 makes to reduce by the electric current of electromagnetic relay coil, moving armature 6 rises because suction is not enough, thereby disconnect the connection circuit of heating wire 5, stop heating.

For avoiding other faults to cause the heating of windshield wiper mistake, install a heating wire switch 7 additional and control separately.

Claims

1. a windshield wiper Automatic-heating protection system, it is made up of windshield wiper power supply, wiper switch, electromagnetic relay, window wiper motor, divider resistance, heating wire switch, windshield wiper, heating wire.

2. windshield wiper Automatic-heating protection system according to claim 1, is primarily characterized in that: in the time that windshield wiper is normally worked, electric current flows through window wiper motor, and windshield wiper is started working; In the time that windshield wiper is frozen in because of cold weather, can prevent by the excessive protection motor of window wiper motor electric current, and automatically connect windshield wiper heating wire simultaneously, windshield wiper is heated; When the automatic normal operation of window wiper motor after the freezing thawing of windshield wiper and disconnect windshield wiper heating wire path, stop windshield wiper heating; For avoiding other faults to cause the heating of windshield wiper mistake, add the heating wire switch of controlling heating wire loop.