CN115009226A

CN115009226A - Improved electric heating type windscreen wiper

Info

Publication number: CN115009226A
Application number: CN202210804853.5A
Authority: CN
Inventors: 姜宁; 王明道; 赵新涛
Original assignee: Shandong University of Technology
Current assignee: Shandong University of Technology
Priority date: 2022-07-08
Filing date: 2022-07-08
Publication date: 2022-09-06

Abstract

The invention discloses an improved electric heating type windscreen wiper which comprises a rubber wiping strip, a windscreen wiper mounting sleeve, a connector, a windscreen wiper swing arm and a heating control circuit, wherein the rubber wiping strip comprises an elastic contact, a temperature sensor, a carbon fiber heating wire structure and a rubber strip body; the rubber scraping strip is inserted into the windscreen wiper mounting sleeve, two ends of the connector are respectively connected with the windscreen wiper mounting sleeve and the windscreen wiper swing arm, and the heating control circuit is structurally connected with the elastic contact, the temperature sensor and the carbon fiber heating wire through the connecting contact piece to form a closed loop. The heating control circuit can judge whether heating is needed according to the ambient temperature, automatically heat as needed, and automatically stop heating when a certain temperature is reached. The windscreen wiper disclosed by the invention is low in processing cost, good in assembly performance, small in damage to windscreen, strong in cleaning capability, free of damage to a windscreen wiper motor, convenient to maintain, low in maintenance cost, higher in heat efficiency and long in service life of the rubber wiping strip.

Description

Improved electric heating type windscreen wiper

Technical Field

The invention relates to the technical field of vehicle-mounted accessories, in particular to a vehicle-mounted windscreen wiper with an internal carbon fiber electric heating device.

Background

In order to improve the driving safety of the automobile in rainy and snowy weather, the current automobile adopts a measure of installing a windscreen wiper in front of a windshield so as to ensure a good view of a driver. However, the existing windscreen wiper installed on an automobile has a single function, and the rubber blade of the windscreen wiper is elastically reduced under a cold condition, so that the adhesion between the rubber blade and the windscreen is reduced, and the windscreen wiper cannot be quickly cleaned under the condition of a cold temperature. On the other hand, in cold weather, a frost layer can be condensed on the windshield glass when the automobile is not started for a long time, the frost layer cannot be effectively cleaned by the common windscreen wiper, and then the joint of the windscreen wiper and the windshield glass can be frozen frequently, and even a motor of the windscreen wiper can be damaged.

Disclosure of Invention

The invention aims to provide an improved vehicle-mounted windscreen wiper, which solves the problems that the existing windscreen wiper mounted on an automobile has a single function, and a rubber blade of the windscreen wiper can quickly clean a windshield shelter under a cold condition.

The invention aims to provide a method for effectively cleaning a frost layer of a wiper in cold weather.

The invention aims to provide a method for solving the problem that a motor of a wiper blade is damaged when the wiper blade is started after being frozen.

The technical scheme is as follows: the vehicle-mounted windscreen wiper capable of automatically heating and ensuring that the windscreen wiper works in a proper temperature range uses a carbon fiber heating wire as an internal electric heating device, and comprises a windscreen wiper body and a temperature control device.

Furthermore, the wiper body comprises a wiper swing arm, a connector, a wiper mounting sleeve and a rubber wiping strip.

Furthermore, square bulges connected with the connectors are arranged on two sides of the windscreen wiper mounting sleeve, a strip-shaped mounting groove is formed in the lower end of the windscreen wiper mounting sleeve, and a rubber scraping strip is inserted into the mounting groove in an inserted mode.

Furthermore, two holes are arranged on two sides of the center of the top of the rubber scraping strip, an elastic contact is fixed in each hole of the rubber scraping strip and comprises a spring and a hemispherical metal sheet, a carbon fiber heating wire for heating the rubber scraping strip and a temperature sensor is fixed in each rubber scraping strip,

furthermore, two holes are formed in two sides of the center of the windscreen wiper mounting sleeve, a contact piece is arranged in the windscreen wiper mounting sleeve, one side of the contact piece is connected with a lead passing through the swing arm, and the other side of the contact piece is in contact with an elastic contact of the rubber scraping strip.

Furthermore, the elastic contact is connected with the temperature sensor and the carbon fiber heating wire.

Furthermore, two ends of the windscreen wiper mounting sleeve are sleeved with fixing clamping sleeves for preventing the strip-shaped rubber scraping strip from being separated from the inside of the mounting groove.

Further, the length of the mounting groove is the same as that of the strip-shaped rubber scraping strip.

Furthermore, the swing arm of the windscreen wiper is provided with a through hole, and a conducting wire passes through the through hole.

Furthermore, holes for mounting a windscreen wiper mounting sleeve are formed in two sides of the connector, and holes for mounting a windscreen wiper swing arm are formed in two sides of the connector. The center of the top surface of the connector is provided with a through hole for passing a wire.

Furthermore, the heating control circuit judges whether heating is needed or not according to a signal transmitted by the temperature sensor, and automatically heats according to the need to automatically stop heating when reaching a certain temperature.

The vehicle-mounted windscreen wiper with the internal electric heating device has the advantages that under the control of the temperature controller, the internal lead is heated through the carbon fiber heating wire powered by the storage battery, so that the windscreen wiper has an automatic heating function, the problem that the windscreen wiper is not frozen together with windshield glass after being not started for a long time is solved, the adhesion between the rubber scraping strip heated in cold weather and the windshield glass is greatly enhanced, and the dirt cleaning capability and the defrosting capability of the windscreen wiper in cold weather are improved.

Drawings

Fig. 1 is a schematic structural view of a wiper body according to the present invention;

FIG. 2 is a schematic view of the structure of a carbon fiber heating wire inside a rubber wiper strip according to the present invention;

FIG. 3 is a cross-sectional view of a rubber wiper strip and a resilient contact according to the present invention;

FIG. 4 is a schematic view of the contact between the elastic contact and the contact plate according to the present invention;

FIG. 5 is a schematic diagram of a heating control circuit according to the present invention;

description of the reference numerals

1.2 carbon fiber heating wire structure of a1 and a2 windscreen wiper body

1 rubber scraping strip 2 windscreen wiper mounting sleeve

1.1 elastic contact 2.1 contact piece

1.1.1 hemispherical metal cap 3 connector

1.1.2 contact spring 4 oscillating arm of windscreen wiper

1.1.3 rubber strip 5 heating control circuit

5.1, 5.2 wire

5.3 Battery and heating control chip

Detailed Description

The invention will now be described in more detail with reference to specific embodiments and the accompanying drawings.

In order to make the objects, technical solutions and advantages of the embodiments of the present invention clearer, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention. The components of embodiments of the present invention generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.

It should be noted that: the same reference numbers or letters are used in the following figures to denote the same item, and thus, once an item is defined in one figure, it need not be further defined and explained in subsequent figures.

In the description of the present invention, the terms "center", "both sides", "both ends", "inside", "outside", and the like, which are oriented or positioned with respect to one another, are used in the orientation or position shown in the drawings, and are used for convenience of description only, and do not mean that the device or element being referred to must be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention. The terms "first," "second," and the like, when used in the description of the present invention, are used only for distinguishing the description. And not its importance.

In the description of the present invention, it should be further noted that unless otherwise explicitly stated or limited, the terms "disposed," "mounted," "connected," and "connected" should be interpreted broadly, and may be, for example, fixedly connected, detachably connected, or integrally connected; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meanings of the above terms in the present invention can be understood in a specific case to those of ordinary skill in the art.

Examples

Fig. 1 is a schematic structural view of a wiper body according to an embodiment of the present invention. Referring to fig. 1, an improved wiper body a of the present invention includes a rubber wiper strip 1, a wiper mounting sleeve 2, a connecting head 3, and a wiper arm 4. One end of the connector 3 is connected with the windscreen wiper mounting sleeve 2, and the other end of the connector is connected with the windscreen wiper swing arm 4. The oscillating wiper arm 4 is configured to drive the rubber wiper strip 1, the wiper mounting sleeve 2 and the connector 3 to oscillate back and forth.

Fig. 2 is a schematic view of a carbon fiber heating wire structure 1.2 inside the rubber wiper strip 1 in fig. 1. In order to improve the heat efficiency, the carbon fiber heating wire structure 1.2 in the rubber scraping strip 1 adopts a rectangular wave wiring mode along the curve shape of the rubber scraping strip.

Fig. 3 is a schematic view of the cross section of the rubber wiper strip 1 and the elastic contact 1.1 in fig. 1. Wherein the elastic contact 1.1 comprises a hemispherical metal cap 1.1.1 at the top and a contact spring 1.1.2 in the hole. Referring to fig. 2 and 3, two ends of the carbon fiber heating wire structure 1.2 built in the two elastic contacts 1.1 and the rubber strip body 1.1.3 are connected to each other, and when the two ends are energized, the rubber strip 1 is heated.

Fig. 4 is a schematic view of the contact between the elastic contact 1.1 of the rubber wiper strip 1 and the contact piece 2.1 of the wiper blade mounting sleeve 2 in fig. 1. Referring to fig. 1, a contact piece 2.1 is located at the center of a wiper blade mounting sleeve 2. Referring to fig. 3, the contact piece 2.1 and the elastic contact 1.1 are configured to be connected by the elastic force of the contact spring 1.1.2 in the elastic contact 1.1 after the rubber wiper strip 1 is completely inserted into the wiper blade mounting sleeve 2.

Fig. 5 is a schematic diagram of the heating control circuit 5 according to the embodiment of the present invention. Referring to fig. 5, the heating control circuit 5 includes a lead 5.1, a lead 5.2, a battery and a heating control chip 5.3. The lead 5.1 and the lead 5.2 are configured to be connected with the contact piece on the wiper mounting sleeve 2 respectively through the wiper arm 4 of the wiper body a1 and the wiper body a2 and the through hole in the connector 3.

Referring to fig. 1 to 5, after the installation, the elastic contact 1.1 inside the rubber wiper strip, the internal carbon fiber heating wire structure, the contact piece 2.1 inside the wiper blade installation sleeve 2 and the heating control circuit 5 form a closed loop. After the vehicle has been started, the battery and heating control chip 5.3 can supply power to the entire circuit and control whether the rubber wiper strip 1 is heated or not, depending on the signal of the temperature sensor inside the rubber wiper strip. If the temperature of the rubber scraper bar is high, the storage battery and the heating control chip 5.3 do not supply power to the loop. If the temperature of the rubber scraping strip is low, the storage battery and the heating control chip 5.3 supply power to the whole loop to control the heating of the carbon fiber heating wire structure in the rubber scraping strip 1. The storage battery and the heating control chip 5.3 receive the signal of the temperature sensor after the rubber scraping strip is heated to the optimal working temperature, cut off the power supply to the loop and stop heating the carbon fiber heating wire structure. When a driver starts the windscreen wiper, the windscreen wiper is the same as the existing windscreen wiper, and the oscillating arm 4 of the windscreen wiper drives the windscreen wiper body a to oscillate back and forth to clean rainwater or dirt.

Claims

1. An improved electric heating type windscreen wiper is characterized by comprising a rubber scraping strip, a windscreen wiper mounting sleeve, a connector, a windscreen wiper swing arm and a heating control circuit, wherein the rubber scraping strip comprises an elastic contact, a temperature sensor, a carbon fiber heating line structure and a rubber strip body; the rubber scraping strip is inserted into the windscreen wiper mounting sleeve, two ends of the connector are respectively connected with the windscreen wiper mounting sleeve and the windscreen wiper swing arm, and the heating control circuit is structurally connected with the elastic contact, the temperature sensor and the carbon fiber heating wire through the connecting contact piece to form a closed loop.

2. The improved electric heating type windscreen wiper as claimed in claim 1, wherein square protrusions connected with the connectors are formed on two sides of the windscreen wiper mounting sleeve, a strip-shaped mounting groove is formed in the lower end of the windscreen wiper mounting sleeve, and a rubber wiping strip is inserted into the mounting groove.

3. The improved electric heating type windscreen wiper as set forth in claim 1, wherein two holes are opened on both sides of the center of the top of said rubber wiper strip, an elastic contact is fixed in said hole of said rubber wiper strip, said elastic contact comprises a spring and a hemispherical metal sheet, and a carbon fiber heating wire for heating said rubber wiper strip and a temperature sensor is fixed in said rubber wiper strip.

4. The improved electric heating type windscreen wiper as set forth in claim 1, wherein two holes are opened at both sides of the center of said mounting sleeve, a contact piece is installed in said mounting sleeve hole, one side of said contact piece is connected with a wire passing through the swing arm, and the other side is contacted with said elastic contact of said rubber wiping strip.

5. The improved electrically heated wiper blade as set forth in claim 1, wherein said resilient contact is connected to said temperature sensor and a carbon fiber heater wire.

6. The improved electric heating type windscreen wiper as set forth in claim 1, wherein said wiper blade mounting sleeve is fitted at both ends thereof with fixing clips for preventing said strip-shaped rubber wiper strip from being detached from the interior of said mounting groove.

7. The improved electrically heated wiper blade as set forth in claim 1, wherein said mounting groove length is the same as the length of said strip-shaped rubber wiper strip.

8. The improved electric heating type wiper blade as set forth in claim 1, wherein said oscillating arm has a through hole, and a wire is passed through said through hole.

9. The improved electric heating type windscreen wiper as set forth in claim 1, wherein holes for mounting a mounting sleeve of the windscreen wiper are formed on both sides of said connecting head, and holes for mounting a swing arm of the windscreen wiper are formed on both sides of said connecting head. The center of the top surface of the connector is provided with a through hole for passing a wire.

10. The improved electrically heated wiper blade as set forth in claim 1, wherein said heating control circuit determines whether heating is required by a signal from said temperature sensor, and automatically heats as required to automatically stop heating when a certain temperature is reached.