CN103693015B - A kind of defogger for vehicle front windshield - Google Patents

Abstract

The invention discloses a demister for the inner surface of the front windshield, which comprises a brush head which is closely attached to the inner surface of the front windshield; The external wiper shares the motor; the brush head and the swing arm have the same shape as the driver's side external wiper, and the same swing range as the driver's side external wiper. The purpose of the invention is to quickly remove the fog before the warm air is started, and the driver's line of sight will not be blocked during the defogging, and the engine power will not be affected.

Description

A defogger for the front windshield of a vehicle

technical field

The invention relates to a defogger, in particular to a defogger for the front windshield of a vehicle.

Background technique

For the existing warm air defogging method, first of all, it will consume part of the engine power, especially for models with low power, the consumed engine power will account for a certain proportion, which will have an impact on the driving process; secondly, after turning on the warm air, it will It takes a certain amount of time to react when there is warm air blowing out, and it takes a while to remove the fog on the inner surface of the windshield. During this period of blurred vision, it will bury a serious safety hazard. Therefore need to propose a kind of device that is used for defogging before warm air starts, and does not occupy the power of engine.

Contents of the invention

The purpose of the present invention is to provide a defogger for the front windshield of a vehicle, which can achieve the purpose of rapid defogging before the warm air is started, and does not block the driver's sight and does not affect the engine power during defogging.

In order to achieve the above object, the present invention provides a demister for the front windshield of a vehicle, comprising: a brush head, which is closely attached to the inner surface of the front windshield; a swing arm, connected to the brush head, and the swing arm The arm shares a motor with the driver's side external wiper; the brush head and the swing arm have the same shape as the driver's side external wiper, and have the same swing range as the driver's side external wiper.

Preferably, a synchronizer is further included, which is used to keep the brush head and the swing arm in an overlapped state with the driver's side external wiper when the driver's side external wiper is turned on.

Preferably, the brush head of the demister is made of soft cloth.

Preferably, the driver's side exterior wiper is a left side wiper.

Preferably, it also includes a vehicle body control system for controlling the synchronizer to switch between the following modes:

Mode 1, the swing frequency of the swing arm is the same as the swing frequency of the driver's side external wiper;

Mode 2, the swing frequency of the driver's side exterior wiper is an integer multiple of the swing frequency of the swing arm.

Preferably, under the condition that the external wipers are turned off, the vehicle body control system is also used to control the synchronizer to switch between the following modes:

Mode a, 2 swings;

Mode b, continuous slow swing;

Mode c, continuous rapid swing.

The present invention at least has the following technical effects:

1) The shape of the brush head and swing arm is the same as that of the external wiper on the driver's side, and the swing trajectory of the external wiper on the driver's side is the same. When it rains, the outside and the inside rotate on the same track at the same time, which can prevent the light from being blocked. The swing arm shares the motor with the external wiper on the driver's side, which does not affect the engine power when driving.

2) Because the internal defogger operates for a short time, it is a temporary measure, so it can only be installed on the left side of the driver, and there is no need to install it on the right side, saving space in the car. The brush head is made of soft cloth material, which has strong cleaning ability and can quickly remove the fog on the front windshield.

3) Since the internal defogger does not need to be used continuously during defogging, the swing frequency of the swing arm controlled by the BCM is the same as the swing frequency of the driver's side external wiper when the swing speed is consistent, or the swing frequency of the driver's side external wiper The swing frequency is an integer multiple of the swing frequency of the swing arm, which not only ensures the defogging effect of the internal defogger, but also saves energy, and will not hinder the driver's sight.

4) When the external wiper is turned off, the BCM (body control module) body control system can also independently control the swing arm movement mode, 2 swing modes, continuous slow swing mode, and continuous fast swing mode, which meet the defogging needs in different situations , to ensure the quality of defogging.

Description of drawings

Hereinafter, some specific embodiments of the present invention will be described in detail by way of illustration and not limitation with reference to the accompanying drawings. The same reference numerals in the drawings designate the same or similar parts or parts. Those skilled in the art will appreciate that the drawings are not necessarily drawn to scale. In the attached picture:

Figure 1 is a logic block diagram of the working process of the demister.

detailed description

In order to make the purpose, technical solutions and advantages of the embodiments of the present invention more clear, specific embodiments will be described in detail below in conjunction with the accompanying drawings.

A defogger for the front windshield of a vehicle, comprising: a brush head, which is closely attached to the inner surface of the front windshield; a swing arm, connected to the brush head, and the swing arm shares a motor with the external wiper on the driver's side; the brush head And the swing arm has the same profile as the driver's side exterior wiper and has the same swivel range as the driver's side exterior wiper.

It can be seen from the above that the shape of the brush head and the swing arm are the same as that of the driver's side external wiper, and the swing trajectory of the driver's side external wiper is the same. When it rains, the outside and the inside rotate on the same track at the same time, which can prevent the light from being blocked. The swing arm shares the motor with the external wiper on the driver's side, which does not affect the engine power when driving.

Since the internal defogger operates for a very short time, it is a temporary measure, so it can only be installed on the left side of the driver, and there is no need to install it on the right side, saving space in the car. The brush head is made of soft cloth material, which has strong cleaning ability and can quickly remove the fog on the front windshield.

In another embodiment of the present invention, a synchronizer is also included, which is used to keep the brush head and the swing arm in an overlapped state with the driver's side external wiper when the driver's side external wiper is turned on. Through the BCM (body control module) body control system, the synchronizer is controlled to switch between the following modes: mode 1, the swing frequency of the swing arm is the same as the swing frequency of the driver's side external wiper; mode 2, the swing frequency of the driver's side external wiper is An integer multiple of the swing frequency of the arm.

Since the internal defogger does not need to be used continuously during defogging, the swing frequency of the swing arm controlled by the BCM is the same as the swing frequency of the driver's side external wiper when the swing speed is consistent, or the swing frequency of the driver's side external wiper It is an integer multiple of the swing frequency of the swing arm. For example, when the external wiper swings twice, the internal defogger swings once, and the first swing trajectory of the internal defogger is consistent with the second swing trajectory of the external wiper. This ensures that It not only improves the defogging effect of the internal defogger, but also saves energy, and does not obstruct the driver's sight.

In the embodiment of the invention shown in Figure 1, when the external wiper is turned off, manually turn the wiper switch knob, and the BCM (body control module) body control system can judge whether the wiper is working or the defogger is working according to the rotation direction of the knob. When the fogger is working, the defogger control module is activated by the defogger switch signal, and the working mode is judged according to the position of the switch knob, mode a, two swings, mode b, continuous slow swing, mode c, continuous fast swing. Three working modes meet the defogging requirements in different situations and ensure the quality of defogging.

After the BCM (body control module) body control system, if the wiper is judged to be working by the rotation direction of the knob, the defogger module will be activated by the wiper switch signal, and the wiper will start to work.

It can be seen from the above that the embodiments of the present invention have the following advantages:

1) The shape of the brush head and swing arm is the same as that of the external wiper on the driver's side, and the swing trajectory of the external wiper on the driver's side is the same. When it rains, the outside and the inside rotate on the same track at the same time, which can prevent the light from being blocked. The swing arm shares the motor with the external wiper on the driver's side, which does not affect the engine power when driving.

2) Because the internal defogger operates for a short time, it is a temporary measure, so it can only be installed on the left side of the driver, and there is no need to install it on the right side, saving space in the car. The brush head is made of soft cloth material, which has strong cleaning ability and can quickly remove the fog on the front windshield.

3) Since the internal defogger does not need to be used continuously during defogging, the swing frequency of the swing arm controlled by the BCM is the same as the swing frequency of the driver's side external wiper when the swing speed is consistent, or the swing frequency of the driver's side external wiper The swing frequency is an integer multiple of the swing frequency of the swing arm, which not only ensures the defogging effect of the internal defogger, but also saves energy, and will not hinder the driver's sight.

4) When the external wiper is turned off, the BCM (body control module) body control system can also independently control the swing arm movement mode, 2 swing modes, continuous slow swing mode, and continuous fast swing mode, which meet the defogging needs in different situations , to ensure the quality of defogging.

So far, those skilled in the art should appreciate that, although a number of exemplary embodiments of the present invention have been shown and described in detail herein, without departing from the spirit and scope of the present invention, the disclosed embodiments of the present invention can still be used. Many other variations or modifications consistent with the principles of the invention are directly identified or derived from the content. Accordingly, the scope of the present invention should be understood and deemed to cover all such other variations or modifications.

Claims (4)

1. for a defogger for vehicle front windshield, it is characterized in that, comprising:

Brush, is close to the inside face of front windshield;

Swing arm, connects described brush, described swing arm and the outside rain brush common motor of driver side;

Described brush is identical with the profile of the outside rain brush of described swing arm and described driver side, and identical with the hunting range of the outside rain brush of described driver side;

Described defogger also comprises:

Synchro, under the condition of having opened at the outside rain brush of described driver side, makes described brush and described swing arm keep overlap condition with described driver side outside rain brush when moving;

Body control system, switches between following pattern for controlling described synchro:

Pattern one, the hunting frequency of described swing arm is identical with the hunting frequency of the outside rain brush of described driver side;

Pattern two, the hunting frequency of the outside rain brush of described driver side is the integral multiple of the hunting frequency of described swing arm.

2. defogger according to claim 1, is characterized in that, the brush of described defogger adopts soft cloth material.

3. defogger according to claim 1, is characterized in that, the outside rain brush of described driver side is left side rain brush.

4. defogger according to claim 1, is characterized in that, under the condition that outside rain brush is closed, described body control system, also switches between following pattern for controlling described synchro:

Pattern a, swings for 2 times;

Pattern b, continuous slow swings;

Pattern c, swings continuously and healthily.