CN116923320A

CN116923320A - Windscreen wiper driving device

Info

Publication number: CN116923320A
Application number: CN202210320313.XA
Authority: CN
Inventors: 吴骏
Original assignee: Pateo Connect Nanjing Co Ltd
Current assignee: Pateo Connect Nanjing Co Ltd
Priority date: 2022-03-29
Filing date: 2022-03-29
Publication date: 2023-10-24

Abstract

The application discloses a wiper driving device, which comprises a switch and a driving piece, wherein the switch comprises a containing cavity, the containing cavity is provided with a solution and a movable side wall, and a first end and a second end of the driving piece are respectively connected with the side wall and a wiper; when the temperature of the solution is reduced to a preset temperature, the solution is solidified from a liquid state to a solid state, the solution expands, the side wall moves towards the direction close to the windscreen wiper, the driving piece is pushed, the windscreen wiper is driven to move through the driving piece, and the windscreen wiper and the window glass are converted from a fitting state to a separating state. When the air temperature is low, the wiper driving device can automatically switch the wiper and the window glass from the attaching state to the separating state, and can avoid the wiper and the window glass from being frozen together.

Description

Windscreen wiper driving device

Technical Field

The application relates to the technical field of vehicles, in particular to a windscreen wiper driving device.

Background

The wiper is used for scraping off liquid or dirt which is on the window glass and affects the driving sight, when the temperature is low, the wiper in the attached state and the window glass are frozen together at a low temperature, the aging of the wiper is easy to accelerate, and in addition, under the condition that the wiper and the window glass are frozen together, if the wiper is used for scraping the liquid and the dirt on the window glass, a motor for driving the wiper is easy to damage.

Disclosure of Invention

An object of the present application is to provide a wiper drive apparatus that can drive a wiper to switch the wiper from a fitted state to a separated state with a window glass.

Another object of the present application is to provide a wiper drive apparatus that can automatically switch a wiper from a fitted state to a separated state with a window glass when the temperature is low, and can prevent the wiper from being frozen with the window glass.

Another object of the present application is to provide a wiper drive apparatus that can automatically switch a wiper from a detached state to an attached state with a window glass when the temperature rises.

Another object of the present application is to provide a wiper drive apparatus, which is advantageous in that power is provided by state transition between a liquid state and a fixed state of a solution to automatically transition a wiper from a separated state to an attached state or vice versa.

Another object of the present application is to provide a wiper drive apparatus, which is advantageous in that when it is necessary to change the wiper from the detached state to the attached state, the solution can be heated by a heating device to change the solution from the solid state to the liquid state, and further, the wiper and the window glass can be changed from the attached state to the detached state.

Another object of the present application is to provide a wiper drive apparatus which is advantageous in that heat generated by a heating device can be transmitted to a window glass and a wiper, and the wiper and the window glass can be prevented from being frozen together.

The embodiment of the application provides a windscreen wiper driving device, which comprises a switch and a driving piece, wherein the switch comprises a containing cavity, the containing cavity is provided with a solution and a movable side wall, and the driving piece is connected with the side wall and a windscreen wiper;

when the temperature of the solution is reduced to a preset temperature, the solution is solidified from a liquid state to a solid state, the solution expands, the side wall moves towards the direction close to the windscreen wiper, the driving piece is pushed, the windscreen wiper is driven to move through the driving piece, and the windscreen wiper and the window glass are converted from a fitting state to a separating state.

In one possible implementation, the solution is a mixed solution comprising at least salt and water.

In one possible implementation, the concentration of the solution is 23.8%.

In one possible implementation, the sidewall has oppositely disposed first and second surfaces, the first surface being in contact with the solution and the second surface being connected to the first end of the driver.

In one possible implementation, the housing chamber is provided with a slide for guiding the side walls, the side walls being arranged in the slide, the outer periphery of the side walls being in slidable contact with the inner wall of the slide.

In one possible implementation, the receiving chamber is provided with an opening into which the solution can be added and a sealing cover for closing the opening.

In one possible implementation, the driving member is an elastic member.

In one possible implementation, the wiper drive apparatus further comprises a heating device.

In one possible implementation, the wiper drive apparatus further includes a heat conducting member, the heat conducting member being in contact with the heating device, the solution, at least part of the heat generated by the heating device being transferred to the solution via the heat conducting member.

In one possible implementation, the heat-conducting element is also in contact with the glazing pane, at least part of the heat generated by the heating device being transferred to the glazing pane by the heat-conducting element.

Drawings

In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings that are required in the embodiments or the description of the prior art will be briefly described, and it is obvious that the drawings in the following description are only some embodiments of the present application, and other drawings may be obtained according to the structures shown in these drawings without inventive effort for a person skilled in the art.

Fig. 1 is a schematic structural view of a wiper driving apparatus according to an embodiment of the present application;

fig. 2 is a schematic view of another structure of a wiper driving apparatus according to an embodiment of the present application.

100 parts of a switch; 110. a receiving chamber; 120. a solution; 130. a sidewall; 140. a slideway; 150. an opening; 160. sealing cover;

200. a driving member;

a. a wiper blade;

b. a vehicle glazing.

Detailed Description

The following description of the embodiments of the present application will be made clearly and fully with reference to the accompanying drawings, in which it is evident that the embodiments described are only some, but not all embodiments of the application. All other embodiments, which can be made by those skilled in the art based on the embodiments of the application without making any inventive effort, are intended to be within the scope of the application.

It should be noted that all directional indicators (such as up, down, left, right, front, and rear … …) in the embodiments of the present application are merely used to explain the relative positional relationship, movement, etc. between the components in a particular posture (as shown in the drawings), and if the particular posture is changed, the directional indicator is changed accordingly.

Furthermore, descriptions such as those referred to as "first," "second," and the like, are provided for descriptive purposes only and are not to be construed as indicating or implying a relative importance or implying an order of magnitude of the indicated technical features in the present disclosure. Thus, a feature defining "a first" or "a second" may explicitly or implicitly include at least one such feature. In the description of the present application, the meaning of "plurality" means at least two, for example, two, three, etc., unless specifically defined otherwise.

In the present application, unless specifically stated and limited otherwise, the terms "connected," "affixed," and the like are to be construed broadly, and for example, "affixed" may be a fixed connection, a removable connection, or an integral body; can be mechanically or electrically connected; either directly or indirectly, through intermediaries, or both, may be in communication with each other or in interaction with each other, unless expressly defined otherwise. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art according to the specific circumstances.

In addition, the technical solutions of the embodiments of the present application may be combined with each other, but it is necessary to be based on the fact that those skilled in the art can implement the technical solutions, and when the technical solutions are contradictory or cannot be implemented, the combination of the technical solutions should be considered as not existing, and not falling within the scope of protection claimed by the present application.

The wiper a is used for wiping off liquid or stains on the window glass b which influence the driving vision, and when the air temperature is low, the wiper a and the window glass b in a fitting state are frozen together at a low temperature, so that the aging of the wiper a is easy to accelerate.

Referring to fig. 1-2, an embodiment of the present application provides a wiper driving device, which can drive a wiper a to move, so that the wiper a and a window glass b are converted from a fitting state to a separating state, or the wiper a and the window glass b are converted from the separating state to the fitting state.

In the embodiment provided by the application, the wiper driving device specifically includes a switch 100 and a driving member 200, where the switch 100 is used to control the driving member 200 to act, and when the driving member 200 acts, the wiper a can be driven to move, so that the wiper a and the window glass b can be controlled to be converted from a fitting state to a separating state, and the wiper a and the window glass b can be converted from the separating state to the fitting state.

In the embodiment provided by the application, the switch 100 comprises a containing cavity 110, a solution 120 is arranged in the containing cavity 110, a movable side wall 130 is arranged in the containing cavity 110, and the driving piece 200 is connected with the side wall 130 and the windscreen wiper a; the receiving chamber 110 may be a closed chamber, and the solution 120 may be changed in state at a preset temperature, specifically, the solution 120 may be solidified into a fixed state when the temperature of the solution 120 is reduced to the preset temperature and expand, and the solution 120 may be changed from the fixed state to a liquid state when the temperature of the solution 120 is increased to the preset temperature.

In one possible implementation manner, referring to fig. 1, when the air temperature is reduced to the first temperature, the temperature of the solution 120 is reduced to a preset temperature, the solution 120 is solidified from a liquid state to a fixed state, and expands to push the side wall 130 to move towards the direction where the wiper a is located, and the side wall 130 may drive the driving element 200 to move to drive the wiper a to move, so that the wiper a and the window glass b are converted from a fitting state to a separating state.

In one possible implementation, referring to fig. 2, when the temperature increases from a lower temperature to a second temperature, the temperature of the solution 120 gradually increases, and when the temperature of the solution 120 increases to a preset temperature, the solution 120 is melted from a solid state to a liquid state, and contracts, so that the side wall 130 moves away from the wiper a, and the side wall 130 drives the driving member 200 to move when moving, and finally drives the wiper a and the window glass b to switch from a separated state to a fitting state by the driving member 200.

In the embodiment provided by the application, the solution 120 is utilized to perform state transition under specific natural conditions, so that not only can power the driving of the windscreen a, but also the windscreen a can be prevented from being frozen together with the window glass b at a lower temperature.

In the embodiment provided by the application, the wiper drive device can be applied to a vehicle.

When the vehicle is not provided with the wiper driving device, if the wiper a and the window glass b are attached together at a lower air temperature when the vehicle is parked, the wiper a and the window glass b are easy to freeze together, especially when the vehicle is parked in a rainy, hail or snowy weather condition, the wiper a and the window glass b are likely to freeze, and the wiper a and the window glass b are likely to freeze together when the wiper a and the window glass b freeze. If the user uses the wiper a to scrape the dirt on the window glass b at this time, the motor for providing power for the wiper a is easy to damage, and because the wiper a and the window glass b are frozen together, the motor is driving the wiper a, and the motor is required to provide a larger torque, and the motor can be damaged due to overlarge load.

When the vehicle is parked and the temperature is reduced to the preset temperature, the wiper driving device can automatically drive the wiper a, specifically, the solution 120 in the wiper driving device is melted from a solid state to a liquid state and contracts, the side wall 130 moves away from the direction where the wiper a is located and drives the driving piece 200 to move, and the driving piece 200 drives the wiper a to enable the wiper a and the window glass b to be converted from a fitting state to a separating state, so that the wiper a and the window glass b can be prevented from being frozen together even if the vehicle is in rainy, hail, snowy or other weather in the parking process.

In one possible implementation, the solution 120 is a mixed solution 120 comprising at least salt and water.

Specifically, the mixed solution 120 of salt and water is simple in material, low in cost and easy to control in solidifying point.

In the embodiments provided herein, the concentration of the salt and water mixed solution 120 may determine the freezing point of the solution 120.

Illustratively, a brine mixture having a concentration of 23.8% may solidify when the temperature of the solution 120 is reduced to-25.7 ℃.

The relationship between the concentration and freezing point of the salt and water mixed solution 120 is shown in the following table:

in the embodiment provided by the present application, the freezing point of the brine mixture solution 120 is the same as the melting point, and illustratively, when the temperature of the brine mixture is reduced to-25.7 ℃, the brine mixture having a concentration of 23.8% may solidify, and when the temperature of the brine mixture is increased to-25.7 ℃, the brine mixture having a concentration of 23.8% may melt.

In the embodiment provided by the application, when the wiper driving device is applied to a vehicle, the concentration of the brine mixture can be self-regulated by a vehicle owner, and a user can set the concentration of the brine mixture according to local weather conditions.

In the embodiment provided by the present application, the sidewall 130 has a first surface and a second surface disposed opposite to each other, the first surface being in contact with the solution 120, and the second surface being connected to the first end of the driving member 200.

Specifically, the accommodating chamber 110 may be filled with the solution 120, and the solution 120 is sealed inside the accommodating chamber 110.

In the embodiment provided by the application, when the temperature of the solution 120 is reduced to a preset temperature, the solution 120 in the accommodating cavity 110 is solidified from a liquid state to a fixed state, the solution 120 expands, and the first surface of the side wall 130, which is in contact with the solution 120, is subjected to pressure, so that the side wall 130 moves in a direction approaching to the wiper a, and further the driving member 200 is driven to move, and finally the wiper a and the window glass b are driven to be converted from a fitting state to a separating state.

In the embodiment provided by the application, when the temperature of the solution 120 increases from a lower temperature to a preset temperature, the solution 120 in the accommodating cavity 110 melts from a fixed state to a liquid state, at this time, the volume of the solution 120 is contracted, and a negative pressure is generated in the accommodating cavity 110, so that the side wall 130 moves away from the direction where the wiper a is located, and the side wall 130 drives the driving member 200 when moving, so that the driving member 200 drives the wiper a, and finally, the wiper a and the window glass b are converted from a separated state to an attached state.

In the embodiment provided by the application, the accommodating cavity 110 is provided with a slideway 140 for guiding the side wall 130, the slideway 140 is used for guiding the side wall 130, wherein the side wall 130 is arranged in the slideway 140, the periphery of the side wall 130 is slidably contacted with the inner wall of the slideway 140, and when the side wall 130 is moving, the side wall 130 moves along the slideway 140.

In the embodiment provided by the application, the inner wall of the slideway 140 is smoothly arranged, and the outer side Zhou Guanghua of the side wall 130 is arranged, so that the outer periphery of the side wall 130 is closely contacted with the slideway 140, and the solution 120 in the accommodating cavity 110 can be reduced or prevented from flowing out of the gap between the side wall 130 and the slideway 140.

In the embodiment provided by the application, the containing cavity 110 is provided with an opening 150 for adding the solution 120 into the containing cavity 110 and a sealing cover 160 for closing the opening 150.

Specifically, when the solution 120 needs to be added to the accommodating chamber 110, the solution 120 may be injected into the accommodating chamber 110 through the opening 150, and correspondingly, the solution 120 in the accommodating chamber 110 may be poured out from the opening 150.

In the embodiment of the present application, the driving member 200 is an elastic member, a first end of the elastic member is fixedly connected to the second surface of the sidewall 130, and a second end of the elastic member is fixedly connected to the wiper a.

In particular, the elastic member may be a spring.

The elastic member may play a role in buffering the wiper a, and, illustratively, when the wiper a and the window glass b need to be converted from a separation state to a fitting state, the solution 120 in the accommodating cavity 110 is melted, so that the side wall 130 moves away from the wiper a, the side wall 130 moves to drive the elastic member to move and deform, and the elastic member may drive the wiper a to approach in a direction where the window is located, and finally the wiper a and the window glass b are in a fitting state.

In the above process, the elastic element can deform, and when the wiper a and the window glass b are attached, the elastic element can provide a certain buffering force, so that the wiper a and the window glass b are prevented from colliding with each other due to larger impact, and the effect of protecting the wiper a and the window glass b can be achieved.

In one possible implementation manner, the wiper driving apparatus further includes a heating device, where the heating device may be used to heat the solution 120, for example, when it is required to switch the wiper a and the window glass b from the separated state to the attached state, the solution 120 may be heated by the heating device, and when the temperature of the solution 120 rises to a preset temperature, the solution 120 in the accommodating cavity 110 melts and contracts, so that the sidewall 130 moves in a direction away from the wiper a, the sidewall 130 moves to drive the driving element 200 to move, and the driving element 200 may drive the wiper a to approach in a direction where the window is located, and finally, to bring the wiper a and the window glass b into the attached state.

In the embodiment provided by the application, when the wiper driving device is applied to a vehicle, the heating device may be an engine of the vehicle, the heating device may also be other parts of the vehicle that can generate heat, and the heating device may also be a heating device added in the vehicle, which is not described in detail in the embodiment of the application.

When the heating device is an engine of a vehicle, the engine is started when a user fires the vehicle, heat may be generated when the engine is started, and at least part of the heat generated by the engine start may be transferred to the solution 120 to heat the solution 120.

Illustratively, when the vehicle is parked in the open and the wiper a drive has transitioned the wiper a and the window glass b from the engaged state to the disengaged state; if the user needs to use the vehicle at this time, the user starts the engine, at least part of heat generated after the engine is started is transferred to the solution 120, so that the solution 120 can be melted, the solution 120 contracts, so that the side wall 130 moves away from the windscreen wiper a, and drives the driving member 200 to move, and the driving member 200 drives the windscreen wiper a, so that the windscreen wiper a and the window glass b are converted into a fitting state from a separation state.

In the embodiment provided by the application, the solution 120 is heated by the heating device, so that the solution 120 can be fused from a solid state to a liquid state, and the windscreen a and the window glass b can be further converted from a separated state to a bonded state.

In one possible implementation, the wiper drive apparatus further includes a heat conducting member, the heat conducting member being in contact with the heating device, the solution 120, at least part of the heat generated by the heating device being transferred to the solution 120 via the heat conducting member.

In an embodiment provided by the application, the heat conducting component is also in contact with the window glass b, and at least part of heat generated by the heating device is transferred to the window glass b through the heat conducting component.

Specifically, when the air temperature is relatively low, the wiper a and the window glass b are required to be in a bonding state, the window glass b and the wiper a can be heated through the heating equipment, and the wiper a can be prevented from being frozen on the window glass b at the low air temperature.

In an embodiment of the present application, the wiper driving apparatus may be applied to a vehicle, where the heat conducting member in the wiper driving apparatus may be a vehicle body or a part of the vehicle body, and the heating device of the wiper driving apparatus is an engine in the vehicle, and when the vehicle is started, at least part of heat generated after the engine is started is transferred to the solution 120 through the vehicle body, so that the solution 120 is converted from a fixed state to a liquid state, and further the wiper a and the window glass b may be converted from a separated state to a bonded state.

In the embodiment provided by the application, when the vehicle is started, at least part of heat generated by the engine is transferred to the solution 120 through the vehicle, so that the solution 120 in the wiper driving device can be prevented from being solidified from a liquid state to a fixed state when the vehicle is started, the wiper a and the window glass b can be prevented from being converted from a fitting state to a separating state when the vehicle is started, the states of the wiper a and the window glass b can not be influenced by air temperature when the vehicle is started, and the temperature of the solution can be prevented from being suddenly reduced along with the great reduction of the air temperature when the vehicle is started, and the temperature of the solution can be prevented from being solidified from the liquid state to the solid state when the vehicle is started, so that the wiper a and the window glass b can be prevented from being converted from the fitting state to the separating state when the vehicle is started.

In the embodiment provided by the application, when the vehicle starts, at least part of heat generated by the engine is transmitted to the windscreen a and the window glass b through the vehicle body, so that the windscreen a and the window glass b are prevented from being frozen together when the vehicle starts.

The foregoing description is only illustrative of the present application and is not intended to limit the scope of the application, and all changes in the equivalent structures described in the specification and drawings of the present application or the direct/indirect application in other related technical fields are included in the scope of the application.

Claims

1. The windscreen wiper driving device is characterized by comprising a switch and a driving piece, wherein the switch comprises a containing cavity, the containing cavity is provided with a solution and a movable side wall, and the driving piece is connected with the side wall and the windscreen wiper;

2. The wiper drive apparatus according to claim 1, wherein the solution is a mixed solution including at least salt and water.

3. The wiper drive apparatus of claim 2, wherein the concentration of the solution is 23.8%.

4. A wiper drive as set forth in any one of claims 1-3 wherein said sidewall has oppositely disposed first and second surfaces, said first surface being in contact with said solution and said second surface being connected to a first end of said drive member.

5. The wiper drive of claim 4, the receiving cavity being provided with a slide for guiding the side wall, the side wall being disposed in the slide, the outer periphery of the side wall being in slidable contact with the inner wall of the slide.

6. A wiper drive as claimed in any one of claims 1 to 3, said receiving cavity being provided with an opening through which said solution can be added to the receiving cavity and a sealing cover for closing said opening.

7. The wiper drive apparatus of claim 4, wherein the drive member is an elastic member.

8. The wiper drive apparatus of claim 1, further comprising a heating device.

9. The wiper drive apparatus according to claim 8, further comprising a heat conductive member in contact with the heating device, the solution, at least a portion of heat generated by the heating device being transferred to the solution through the heat conductive member.

10. The wiper drive apparatus according to claim 9, wherein the heat conductive member is further in contact with the window glass, and at least part of heat generated by the heating device is transmitted to the window glass through the heat conductive member.