Self-adaptive windscreen wiper
The adaptive wiper design solves the problems of wasted windshield washer fluid, incomplete wiping, and excessive noise in traditional wipers in low-temperature environments. It achieves precise spraying of the washer fluid, dynamic pressure adjustment, and temperature control, ensuring that the wipers work normally in low-temperature environments and improving driving safety and passenger experience.
Patent Information
- Application Number
- CN202520659393.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-04-09
- Publication Date
- 2026-02-06
- Estimated Expiration
- 2035-04-09
AI Technical Summary
Traditional windshield wipers suffer from problems such as wasting washer fluid, incomplete wiping, excessive noise, and freezing in low-temperature environments, affecting driving safety and passenger experience.
An adaptive windshield wiper was designed, which uses components such as a water spray module, a light transmittance detector, a pressure sensor, an electro-deformation device, and a heating layer to achieve precise spraying of cleaning fluid, dynamic pressure regulation, and temperature control, ensuring the wiper blade adheres to the glass and functions properly.
It achieves efficient use of cleaning fluid, reduces noise, prevents freezing, ensures that the wipers work normally in low-temperature environments, and improves driving safety and passenger experience.
Smart Images
Figure CN223877992U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model relates to the technical field of windscreen wiper, specifically relates to a self -adaptation windscreen wiper. BACKGROUND
[0002] The windscreen wiper is an indispensable component of the automobile, is a kind of tool for preventing rain and snow and other dirt from affecting sight and carrying out simple cleaning, plays a vital role in daily driving.The traditional windscreen wiper is mainly composed of wiper strip, wiper strip support frame, wiper arm, motor and related transmission mechanism and other components, and the working principle is that the motor provides power for the wiper arm, makes the wiper strip on the wiper arm drive wiper strip support frame reciprocating motion on the vehicle glass, realizes the purpose of removing rain, snow, dust etc.on the vehicle glass.
[0003] In most cases, the windscreen wiper can provide clear driving vision for the driver, greatly ensures driving safety.For example, when it is raining heavily, the windscreen wiper swings back and forth at appropriate frequency and force to remove the rainwater on the vehicle glass, so that the rainwater is swept away before it accumulates on the glass, ensuring that the driver can see the road conditions, other vehicles and traffic signals.In the environment with more dust, the dust can also be removed in time by the windscreen wiper to maintain the transparency of the glass.With the continuous development of automobile industry, people have higher requirements on the performance and quality of the windscreen wiper to adapt to the increasingly diversified driving environment.
[0004] However, the traditional windscreen wiper faces many problems in cold weather in winter, which seriously affects its normal use and driving safety.The specific defects are as follows:
[0005] 1. Glass water waste: the existing glass water is often sprayed from above or below the vehicle glass through the spray head, cannot accurately deliver the glass water to the wiper strip working area, thereby causing glass water waste.
[0006] 2. Incomplete water wiping: in low-temperature environment, the rubber wiper strip of the windscreen wiper will gradually harden, the elasticity decreases, and the adhesion to the vehicle glass becomes poor, so that the wiper strip cannot completely remove the moisture and impurities on the vehicle glass in the water wiping process, resulting in poor water wiping effect, affecting the driver's sight and increasing the driving risk.
[0007] 3. Large noise: when the temperature decreases, the rigidity of the wiper strip of the windscreen wiper increases, and the adhesion of the windscreen wiper to the vehicle glass becomes poor, the friction and vibration of the windscreen wiper in the movement process also increases correspondingly, not only will generate larger noise, but also will interfere with the attention of the driver, and may cause adverse effects on the riding experience of the passengers in the vehicle.
[0008] 4. Easy to freeze: in the cold winter, if the ambient temperature is too low, the wiper is easy to be frozen by rain and snow or glass water on the vehicle glass; if the wiper is started forcibly at this time, the motor, wiper arm and other components may be damaged, the maintenance cost is increased; and the frozen wiper cannot work normally, and the clear vision of the driver and the driving safety cannot be ensured.
[0009] Therefore, in the face of the above problems existing in the traditional wiper, the development of a self-adaptive wiper is a technical problem to be solved at present. Content of the utility model
[0010] The utility model aims at providing a self-adaptive wiper to solve the problem that the existing water spraying mode of glass water of an automobile is easy to cause glass water waste.
[0011] In order to solve the above technical problems, the utility model provides a self-adaptive wiper, which comprises a support and a wiper strip arranged on one side of the support facing the vehicle glass; one side of the wiper strip facing the vehicle glass is provided with a water spraying module; the water spraying module comprises a water flow channel arranged in the wiper strip along the length direction of the wiper strip; one side of the water flow channel facing the vehicle glass is provided with a plurality of water spraying openings which are longitudinally spaced along the water flow channel and can be independently controlled to spray water; after the cleaning liquid enters the water flow channel, the cleaning liquid is sprayed to the target area of the vehicle glass through the water spraying openings.
[0012] Further, one electric nozzle is arranged in each water spraying opening; and the plurality of electric nozzles are respectively connected with the output signal of the control unit.
[0013] Further, at least one light transmittance detector for detecting the light transmittance of the vehicle glass is arranged on the support, and the light transmittance detector is connected with the input signal of the control unit.
[0014] Further, a plurality of light transmittance detectors are arranged on one side of the support and are spaced along the length direction of the support; and the control unit controls the working state of the electric nozzles in the corresponding area according to the light transmittance detected by the plurality of light transmittance detectors.
[0015] Further, a plurality of light transmittance detectors are arranged on one side of the support and are spaced along the length direction of the support; and the control unit controls the working state of the electric nozzles in the corresponding area according to the light transmittance detected by the plurality of light transmittance detectors.
[0016] Further, the wiper strip is provided with at least one pressure sensor and at least one electroactive polymer; the pressure sensor is signal connected with the input end of the control unit, for monitoring the pressure between the wiper strip and the vehicle glass; the electroactive polymer is signal connected with the output end of the control unit, for producing different deformation according to different electric signals output by the control unit, so as to adjust the pressure between the wiper strip and the vehicle glass.
[0017] Further, the wiper strip is provided with a plurality of pressure sensors and a plurality of electroactive polymers, which are uniformly distributed and one-to-one corresponding along the length direction of the wiper strip.
[0018] Further, the electroactive polymer is an electroactive polymer.
[0019] Further, a heating layer is arranged between the bracket and the wiper strip, a heater is arranged in the heating layer, and the heater is signal connected with the output end of the control unit; a temperature sensor for monitoring the ambient temperature is arranged on the bracket, and the temperature sensor is signal connected with the input end of the control unit.
[0020] Further, the heater is a heating wire arranged in the wiper strip along the length direction of the heating layer.
[0021] The wiper strip has the advantages that:
[0022] 1. The water spraying module is arranged on the side facing the vehicle glass, the cleaning liquid enters the water flow channel, and then is sprayed to the vehicle glass through the water spraying port, so that the cleaning liquid can be accurately sprayed on the vehicle glass; and the water spraying port in the application can be independently controlled to spray water, so that the driver can control the water spraying port to spray water on the target area according to the need in the use process, thereby reducing the waste of cleaning liquid, improving the utilization rate of cleaning liquid, and also playing a role in protecting the environment to a certain extent.
[0023] 2. The light transmittance detector is arranged for monitoring the light transmittance of the vehicle glass, and when the light transmittance of the vehicle glass is detected to be lower than the light transmittance setting value, the water spraying port of the water spraying module is opened, so that the cleaning liquid is sprayed to the vehicle glass from the water spraying port, thereby facilitating the automatic cleaning of the vehicle glass; in addition, a plurality of light transmittance detectors can be arranged on the wiper in the application, and when one or more light transmittance detectors detect that the light transmittance of the vehicle glass is less than the light transmittance setting value, the water spraying port near the light transmittance detector is opened to spray water, and the other water spraying ports are kept closed, so that the glass water can be greatly avoided from being wasted.
[0024] 3. By setting the pressure sensor to monitor the pressure between the wiper strip and the vehicle glass, and transmitting the monitored pressure signal to the control unit, then adjusting the output of different electric signals according to the monitored pressure signal through the control unit, so that the electro-deformation body produces different deformations according to different electric signals, thereby realizing the purpose of self-adaptive adjustment of the wiper strip to adjust the pressure between the wiper strip and the vehicle glass, so that the wiper always maintains pressure dynamic balance with the vehicle glass during operation, ensures the fit between the wiper strip and the vehicle glass, and ensures good wiping effect while avoiding friction noise between the wiper and the vehicle glass during movement by regulating the contact pressure.
[0025] 4. By setting the temperature sensor for monitoring the ambient temperature, and when the monitored ambient temperature is lower than the temperature setting value, the heater in the heating layer is turned on to heat the wiper, which not only prevents the wiper from being frozen on the vehicle glass at low temperature, but also softens the frozen wiper strip, thereby ensuring that the wiper can work normally and stably. BRIEF DESCRIPTION OF DRAWINGS
[0026] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The same reference numerals are used to represent the same or similar parts in the drawings. The illustrative embodiments of the present application and their descriptions are used to explain the present application, and do not constitute undue limitations on the present application. In the drawings:
[0027] Figure 1 A structural schematic view of an embodiment of the present application.
[0028] Figure 2 An A-A sectional view of an embodiment of the present application.
[0029] Wherein: 1, support; 11, light transmittance detector; 12, temperature sensor; 2, heating layer; 21, heating wire; 3, wiper strip; 31, pressure sensor; 32, electro-deformation body; 33, water flow channel; 34, water spraying port; 35, electric spray head. DETAILED DESCRIPTION
[0030] In a first aspect, the present application discloses a self-adaptive wiper, which comprises Figure 1 and Figure 2As shown, the wiper blade 3 is arranged on the bracket 1, and the water spraying module is arranged on the side of the wiper blade 3 facing the vehicle glass. The water spraying module comprises a water flow channel 33 arranged in the wiper blade 3 along the length direction of the wiper blade 3, and a plurality of water spraying openings 34 are arranged on the side of the water flow channel 33 facing the vehicle glass and can independently control water spraying. The cleaning liquid enters the water flow channel 33 and is sprayed to the vehicle glass through the water spraying openings 34. In this embodiment, the water spraying module is arranged on the wiper blade, the water flow channel 33 and the water spraying openings 34 are arranged along the length direction of the wiper blade, the cleaning liquid enters the water flow channel 33 and is sprayed to the vehicle glass through the water spraying openings 34, so that the cleaning liquid can be accurately sprayed on the vehicle glass, the waste of the cleaning liquid is reduced, the utilization rate of the cleaning liquid is improved, and the environment is protected to a certain extent.
[0031] The bracket 1 is a long strip-shaped rigid structure, which is used to support the wiper blade 3 and keep the wiper blade 3 in an extended state. The wiper blade 3 is made of a flexible material (such as flexible silica gel), and at least one wiper part protruding to the side of the vehicle glass is arranged on the side of the wiper blade 3 facing the vehicle glass. The wiper part is arranged along the length direction of the wiper blade 3. When a plurality of wiper parts are arranged on the side of the wiper blade 3 facing the vehicle glass, the plurality of wiper parts are often arranged in parallel and at intervals. When one or more wiper parts are arranged on the wiper blade 3, the wiper part is arranged on the side of the wiper blade close to the vehicle side, and a plurality of water spraying openings 34 can be arranged on the side of the wiper blade close to the middle of the vehicle. When two wiper parts are arranged on the wiper blade 3, a plurality of water spraying openings 34 can also be arranged between the two wiper parts. Since the wiper blade 3 is made of a flexible material, in order to ensure the flowability of the water flow channel 33, the four side walls of the water flow channel 33 need to have a certain rigidity, which will not be described in detail here.
[0032] According to one embodiment of the present application, an electric spray head 35 is arranged in each water spraying opening 34, and the plurality of electric spray heads 35 are respectively connected to the output signal of the control unit. In this embodiment, the electric spray head 35 is arranged in each water spraying opening 34, and the working state of each electric spray head 35 is controlled by the controller, so that the water spraying of the water spraying opening 34 is controlled.
[0033] According to one embodiment of the present application, at least one light transmittance detector 11 for detecting the light transmittance of the vehicle glass is arranged on the bracket 1, and the light transmittance detector 11 is connected to the input signal of the control unit. The light transmittance detector 11 is preferably arranged on the side of the bracket 1 close to the central axis of the vehicle. The light transmittance detector 11 performs monitoring work at the same time when the wiper is started, and when the light transmittance of the vehicle glass detected by the light transmittance detector 11 is less than the set light transmittance value, the control unit sends a driving signal to the electric spray head 35 to drive the electric spray head 35 to spray water.
[0034] According to one embodiment of the present application, the bracket 1 is provided with a plurality of light transmittance detectors 11 on one side, and the plurality of light transmittance detectors 11 are arranged at intervals along the length direction of the bracket 1 (specifically, can be arranged at uniform intervals); the control unit controls the working state of the electric spray head 35 in the corresponding area according to the light transmittance detected by the plurality of light transmittance detectors 11 respectively. When any light transmittance detector 11 detects that the light transmittance of the vehicle glass is less than the light transmittance setting value, the control unit drives the electric spray head 35 in the corresponding area (i.e. the distance between the light transmittance detector 11 is less than the distance setting value) to drive the electric spray head 35 to spray water by driving signal. The plurality of light transmittance detectors 11 work respectively, and the plurality of electric spray heads 35 are divided into several groups according to the distance between the light transmittance detector 11, each group of electric spray heads 35 corresponds to one light transmittance detector 11, when one or several light transmittance detectors 11 detect that the light transmittance of the vehicle glass is less than the light transmittance setting value, the electric spray head 35 group in the corresponding area of the light transmittance detector 11 is turned on, and the electric spray head 35 in the other water spraying port 34 is kept closed, so that only the target area with the light transmittance of the vehicle glass less than the light transmittance setting value is sprayed, so that the waste of glass water can be greatly avoided.
[0035] According to one embodiment of the present application, the bracket 1 is provided with a plurality of light transmittance detectors 11 on one side, and the plurality of light transmittance detectors 11 are arranged at intervals along the length direction of the bracket 1 (specifically, can be arranged at uniform intervals); the control unit controls the working state of the electric spray head 35 in the corresponding area according to the light transmittance detected by the plurality of light transmittance detectors 11 respectively. When any light transmittance detector 11 detects that the light transmittance of the vehicle glass is less than the light transmittance setting value, the control unit drives the electric spray head 35 in the corresponding area (i.e. the distance between the light transmittance detector 11 is less than the distance setting value) to drive the electric spray head 35 to spray water by driving signal. The plurality of light transmittance detectors 11 work respectively, and the plurality of electric spray heads 35 are divided into several groups according to the distance between the light transmittance detector 11, each group of electric spray heads 35 corresponds to one light transmittance detector 11, when one or several light transmittance detectors 11 detect that the light transmittance of the vehicle glass is less than the light transmittance setting value, the electric spray head 35 group in the corresponding area of the light transmittance detector 11 is turned on, and the electric spray head 35 in the other water spraying port 34 is kept closed, so that only the target area with the light transmittance of the vehicle glass less than the light transmittance setting value is sprayed, so that the waste of glass water can be greatly avoided.
[0036] According to one embodiment of the present application, at least one pressure sensor 31 and at least one electrostrictive body 32 are arranged in the wiper strip 3; the pressure sensor 31 is signal connected with the input end of the control unit, for monitoring the pressure between the wiper strip 3 and the vehicle glass; the electrostrictive body 32 is signal connected with the output end of the control unit, for generating different deformations according to different electric signals output by the control unit, so as to adjust the pressure between the wiper strip 3 and the vehicle glass.
[0037] The embodiment sets the pressure sensor 31 to monitor the pressure between the wiper strip 3 and the vehicle glass, and transmits the monitored pressure signal to the control unit, and then adjusts the output of different electric signals according to the monitored pressure through the control unit, so that the electro-deformation body 32 generates different deformations according to different electric signals, thereby realizing the purpose of self-adaptive adjustment of the wiper strip 3 to adjust the pressure between the wiper strip 3 and the vehicle glass, so that the wiper always maintains pressure dynamic balance with the vehicle glass during the working process, ensures the fit between the wiper strip 3 and the vehicle glass, and ensures good water wiping effect while avoiding friction noise between the wiper and the vehicle glass during the movement of the wiper by adjusting the contact pressure.
[0038] According to one embodiment of the application, a plurality of pressure sensors 31 and a plurality of electro-deformation bodies 32 are arranged in the wiper strip 3, and the plurality of pressure sensors 31 and the plurality of electro-deformation bodies 32 are uniformly distributed and one-to-one corresponding along the length direction of the wiper strip 3. Each monitoring point provided with a pressure sensor 31 is configured with an electro-deformation body 32, and when the pressure sensor 31 monitors that the pressure exceeds the threshold range, the electro-deformation body 32 of the corresponding monitoring point is deformed, and the precise adjustment of the wiper strip 3 is realized by the multi-point monitoring and adjustment mode. In addition to the above-mentioned arrangement of a plurality of electro-deformation bodies 32, an electro-deformation body 32 arranged along the wiper strip 3 can also be directly used, and at this time the pressure between the wiper strip 3 and the vehicle glass is uniformly adjusted by adjusting the electro-deformation body 32 according to the pressure monitored by the pressure sensor 31.
[0039] According to one embodiment of the application, the electro-deformation body 32 is an electroactive polymer. The electroactive polymer is a kind of smart material, which can produce physical deformation under the action of voltage or electric field, and has special electrical properties and mechanical properties. The control unit can be a vehicle-mounted computer or a micro control unit, and the vehicle-mounted computer or the micro control unit sends different PWM values to the PWM pulse signal DA converter according to the received pressure signal, the PWM pulse signal DA converter converts the PWM values into different sizes of direct current voltage, and inputs the different sizes of direct current voltage into the analog voltage regulating circuit of the power supply, so that the power supply outputs corresponding different voltage sizes, and the electro-deformation body 32 deforms according to the received voltage size.
[0040] According to one embodiment of the present application, a heating layer 2 is arranged between the bracket 1 and the wiper strip 3, a heater is arranged in the heating layer 2, and the heater is signal connected to the output end of the control unit; the bracket 1 is provided with a temperature sensor 12 for monitoring the ambient temperature, and the temperature sensor 12 is signal connected to the input end of the control unit. In this embodiment, the temperature sensor 12 for monitoring the ambient temperature is arranged, and when the ambient temperature is monitored to be lower than the temperature setting value, the heater in the heating layer 2 is turned on to heat the wiper. This not only prevents the wiper from being frozen on the vehicle glass at low temperature, but also softens the frozen wiper strip 3, thereby ensuring that the wiper can work normally and stably. By arranging the heating layer 2 between the bracket 1 and the wiper strip 3, the bracket 1 and the wiper strip 3 can be heated at the same time, which not only prevents the wiper strip 3 from being frozen on the vehicle glass, but also removes the snow and frost on the wiper, and also ensures the flexibility of the connection between the connecting head of the wiper and the wiper arm.
[0041] According to one embodiment of the present application, the heater is a heating wire 21 arranged in the wiper strip 3 along the length direction of the heating layer 2. In this embodiment, the heating wire 21 arranged in the wiper strip 3 is used to heat the wiper, which consumes less energy and heats more uniformly compared with the external heating device (such as a small heating fan installed near the wiper).
[0042] The adaptive wiper working process is as follows:
[0043] 1. Start preparation
[0044] After the vehicle starts, the temperature sensor 12 starts to work and monitors the ambient temperature in real time to prepare for starting the wiper. If the temperature sensor 12 monitors that the temperature is lower than the temperature setting value, the vehicle-mounted computer controls the heating wire 21 to start heating the wiper. If the temperature is higher than the temperature setting value, the wiper does not need to be heated by the heating wire 21, and directly performs the water wiping operation.
[0045] 2. Wiping process
[0046] The wiper starts, and the light transmittance detector 11 continuously monitors the light transmittance of the windshield during this process. If it is monitored that the light transmittance of the vehicle glass is lower than the light transmittance setting value, the control opens the water spraying port 34 near the glass to spray cleaning liquid. The water spraying port 34 near the vehicle glass with light transmittance higher than the light transmittance setting value is kept in a closed state, which greatly avoids the waste of glass water. At the same time, the pressure sensor 31 monitors the pressure in real time, and when the pressure is abnormal, the adhesion between the wiper strip 33 and the vehicle glass is controlled.
[0047] 3. Stop
[0048] When the vehicle stops or the wiper is closed, the components of the wiper stop working.
[0049] Finally, it is explained that the above embodiments are only used to illustrate the technical solutions of the present application and are not limited. Although the present application has been described in detail with reference to the preferred embodiments, it should be understood by those skilled in the art that the technical solutions of the present application can be modified or replaced by equivalents without departing from the purpose and scope of the present application. The technical solutions of the present application should be covered in the scope of the claims of the present application.
Claims
1. An adaptive wiper comprising a bracket and a wiper blade provided on a surface of the bracket facing a vehicle glass, characterized in that, The water spraying module is arranged on the side of the wiper blade facing the vehicle glass, and comprises a water flow channel arranged in the wiper blade along the length direction of the wiper blade, and a plurality of water spraying openings arranged along the length direction of the water flow channel and independently controllable.
2. The self-adapting wiper according to claim 1, characterized in that, Each of the water spraying openings is provided with an electric nozzle.
3. The self-adapting wiper according to claim 2, wherein, The support is provided with at least one light transmittance detector for monitoring the light transmittance of the vehicle glass, and the light transmittance detector is signal connected to the input end of the control unit.
4. The self-adapting wiper according to claim 3, characterized in that, The support is provided with a plurality of light transmittance detectors on one side, and the light transmittance detectors are arranged along the length direction of the support.
5. The self-adapting wiper according to claim 3, wherein, The support is provided with a plurality of light transmittance detectors on each side, and the light transmittance detectors are arranged along the length direction of the support.
6. The self-adapting wiper according to claim 2, wherein, The wiper blade is provided with at least one pressure sensor and at least one electroactive polymer, the pressure sensor is signal connected to the input end of the control unit for monitoring the pressure between the wiper blade and the vehicle glass, and the electroactive polymer is signal connected to the output end of the control unit for generating different deformations according to different electric signals output by the control unit to adjust the pressure between the wiper blade and the vehicle glass.
7. The self-adapting wiper according to claim 6, characterized in that, The wiper blade is provided with a plurality of pressure sensors and a plurality of electroactive polymers, and the pressure sensors and the electroactive polymers are uniformly distributed along the length direction of the wiper blade.
8. The self-adapting wiper according to claim 6 or 7, characterized in that, The electroactive polymer is an electroactive polymer.
9. The self-adapting wiper according to claim 2, wherein, The support and the wiper blade are provided with a heating layer, the heating layer is provided with a heater, the heater is signal connected to the output end of the control unit, the support is provided with a temperature sensor for monitoring the ambient temperature, and the temperature sensor is signal connected to the input end of the control unit.
10. The self-adapting wiper according to claim 9, characterized in that, The heater is a heating wire arranged in the wiper blade along the length direction of the heating layer.