Pollutant removal device for windshield

Abstract

The present disclosure relates to a contaminant removal device for a windshield, the device comprising: drive belts located on both side surfaces of the windshield; a drive unit configured to apply a driving force to the drive belts; a wiper assembly located on the windshield; a rotating roller configured to move along the drive belts; an idler gear located at an end of the drive belt to change the rotation direction of the rotating roller; a frame connecting shaft coupled to both ends of the wiper assembly and located within the rotating roller so as to contact the idler gear to change the rotation direction of the rotating roller; and a controller configured to change the rotation direction of the rotating roller when the idler gear and the frame connecting shaft are in contact.

Description

Technical Field

[0001] The present disclosure relates to a contaminant removal device for a windshield. More specifically, the present disclosure relates to a contaminant removal device for a windshield, the contaminant removal device being configured such that a wiper assembly located in the width direction of a windshield of a vehicle moves along the height direction of the windshield toward the upper end and the lower end of the windshield. Accordingly, contaminants on the windshield can be removed, and the windshield can be coated, thereby improving the visibility of a user. Background Art

[0002] A wiper device is provided at a lower portion of a front windshield or a rear windshield of a vehicle and wipes the windshield so as not to block the view of a driver and passengers when it snows or rains. Due to the structure of a wiper blade that makes a reciprocating angular motion about a rotation axis, the operating radius is limited, and thus there is a blind spot where cleaning cannot be performed. Accordingly, when a vehicle travels in severe weather conditions such as heavy rain or heavy snow, the risk of traffic accidents caused by a narrowed field of view increases.

[0003] Accordingly, a structural improvement is needed to ensure a wider wiping area, and a linear reciprocating wiper device has been proposed. The device includes: a driving unit that converts a rotational motion into a reciprocating rotational motion by power transmitted from a motor; a slave unit configured to be symmetric with the driving unit so as to be linked with the driving unit; and a wiper blade connected to the driving unit and the slave unit to wipe the windshield.

[0004] However, a problem with such a linear reciprocating wiper device is that it cannot operate properly because the contact area decreases when the wiper blade rotates during the lifting process.

[0005] In addition, when the wiper blade is moved toward the upper end and the lower end of the windshield only by the driving force of a motor, the wiper blade is pushed, and thus visibility satisfying user requirements cannot be provided. Summary of the Invention

[0006] Implementing the present disclosure is to solve the above problems associated with the prior art. An object of the present disclosure is to provide a contaminant removal device for a windshield, the contaminant removal device moving toward the upper end and the lower end of the windshield so as to remove contaminants on the windshield.

[0007] Another object of the present disclosure is to provide a contaminant removal device for a windshield, when the contaminant removal device moves toward the upper end of the windshield and moves toward the lower end of the windshield, contaminants on the windshield can be removed by different wiper blades.

[0008] Another object of the present disclosure is to provide a wiper assembly, the length of which in the width direction is changed according to the width of the windshield.

[0009] On the one hand, the present disclosure provides a device for removing contaminants from a windshield. The device includes: a drive belt located on both side surfaces of the windshield; a drive unit configured to apply a driving force to the drive belt; a wiper assembly located on the windshield; a rotating roller configured to move along the drive belt; an idle gear located at an end of the drive belt to change the rotation direction of the rotating roller; a frame connecting shaft coupled to both ends of the wiper assembly and located within the rotating roller, so as to contact the idle gear to change the rotation direction of the rotating roller; and a controller configured to change the rotation direction of the rotating roller when the idle gear and the frame connecting shaft are in contact.

[0010] In one embodiment, the wiper assembly may include: a frame configured to be coupled to the frame connecting shaft; a first wiper blade located at one end of the frame; and a second wiper blade located at the other end of the frame. When the frame rotates about the frame connecting shaft, the first wiper blade and the second wiper blade may selectively contact the windshield.

[0011] In another embodiment, when the frame connecting shaft contacts the idle gear, the controller may control to rotate the frame by a predetermined angle, and then may change the rotation direction of the rotating roller.

[0012] In another embodiment, a cleaning liquid nozzle may be provided at a position adjacent to the first wiper blade. The cleaning liquid may be sprayed onto the upper surface of the windshield through the cleaning liquid nozzle.

[0013] In another embodiment, a coating nozzle may be provided at a position adjacent to the second wiper blade. The coating liquid may be sprayed onto the upper surface of the windshield through the coating nozzle.

[0014] In another embodiment, the frame may include at least two sub-frames. The at least two sub-frames may overlap each other such that the length of the frame is changed in the width direction of the windshield.

[0015] In another embodiment, the device for removing contaminants from a windshield may further include a guide rail provided along the windshield. The drive belt may be located within the guide rail.

[0016] In another embodiment, the idle gear may contact the frame connecting shaft to change the rotation direction of the rotating roller.

[0017] In another embodiment, when the wiper assembly is not operated, the controller may control the wiper assembly to be located at the uppermost or lowermost end of the windshield.

[0018] In another embodiment, the first wiper blade may be configured to be located closer to the upper end of the windshield than the second wiper blade, and the first wiper blade may contact the windshield when the wiper assembly moves downward along the windshield.

[0019] In another embodiment, the second wiper blade may contact the windshield when the wiper assembly moves upward along the windshield.

[0020] In another embodiment, the controller may control the wiper assembly to move locally within the area of the windshield where the sensor unit is installed.

[0021] Other aspects and embodiments of the present disclosure are discussed below.

[0022] The above and other features of the present disclosure are discussed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0023] The above and other features of the present disclosure are described in detail now with reference to certain embodiments of the present disclosure shown in the accompanying drawings, which are given by way of example only hereinafter and thus do not limit the present disclosure, and in which:

[0024] Figure 1 is a perspective view of a vehicle equipped with a pollutant removal device for a windshield according to an embodiment of the present disclosure;

[0025] Figure 2 is a view showing a pollutant removal device for a windshield according to an embodiment of the present disclosure, the pollutant removal device being located at one side end of the windshield;

[0026] Figure 3A is a side view of a pollutant removal device for a windshield according to an embodiment of the present disclosure, the pollutant removal device moving downward along the windshield;

[0027] Figure 3B is a front view of a pollutant removal device for a windshield according to an embodiment of the present disclosure, the pollutant removal device moving downward along the windshield;

[0028] Figure 4A is a side view of a pollutant removal device for a windshield according to an embodiment of the present disclosure in a state where the frame connecting shaft and the idler gear are in contact with the lower end of the windshield;

[0029] Figure 4B is a front view of a pollutant removal device for a windshield according to an embodiment of the present disclosure in a state where the frame connecting shaft and the idler gear are in contact with the lower end of the windshield;

[0030] Figure 5AA side view of a pollutant removal device for a windshield according to an embodiment of the present disclosure, the pollutant removal device moving upward along the windshield;

[0031] Figure 5B A front view of a pollutant removal device for a windshield according to an embodiment of the present disclosure, the pollutant removal device moving upward along the windshield;

[0032] Figure 6A A side view of a pollutant removal device for a windshield according to an embodiment of the present disclosure in a state where a frame connection shaft and an idler gear are in contact with the upper end of the windshield;

[0033] Figure 6B A front view of a pollutant removal device for a windshield according to an embodiment of the present disclosure in a state where a frame connection shaft and an idler gear are in contact with the upper end of the windshield;

[0034] Figure 7A A diagram showing a coupling relationship between a cleaning liquid nozzle and a cleaning liquid pipe connected to the cleaning liquid nozzle according to an embodiment of the present disclosure;

[0035] Figure 7B A side view of a frame in which a cleaning liquid nozzle is located according to an embodiment of the present disclosure;

[0036] Figure 8A A diagram showing a coupling relationship between a coating nozzle and a coating liquid pipe connected to the coating nozzle according to an embodiment of the present disclosure;

[0037] Figure 8B A side view of a frame in which a coating nozzle is located according to an embodiment of the present disclosure; and

[0038] Figure 9 A front view of a frame according to an embodiment of the present disclosure, the length of the frame changing in response to a change in width, the width varying according to the height of the windshield.

[0039] It should be understood that the drawings are not necessarily drawn to scale, as long as they present a somewhat simplified representation of the various features showing the basic principles of the present disclosure. Specific design features of the present disclosure, including such things as specific dimensions, orientations, positions, and shapes, should be determined in part by the particular intended application and the use environment.

[0040] In the figures, reference numerals refer to the same or equivalent components of the present disclosure throughout the several views of the drawings. Detailed Description

[0041] In the following, various embodiments of the present disclosure are referred to in detail, and examples of the embodiments are shown in the drawings and described below. Although the present disclosure is described in connection with specific embodiments, it should be understood that this description is not intended to limit the present disclosure to the specific embodiments. On the contrary, the present disclosure is intended to cover not only the specific embodiments, but also various alternatives, modifications, equivalents, and other embodiments within the spirit and scope of the present disclosure defined by the appended claims.

[0042] In the description of the following embodiments, terms such as "belt", "component", "assembly", etc. refer to a unit for handling at least one function or operation, and these can be implemented by hardware, software, or a combination of hardware and software. When a belt, component, assembly, unit, composition, device, controller, element, etc. of the present disclosure is described as having a purpose or performing an operation, function, etc., the belt, component, assembly, unit, composition, device, controller, or element should be regarded as "configured to" meet the purpose or perform the operation or function in this document. In addition, the controller described herein may include a processor programmed to perform the indicated operations, functions, etc.

[0043] In addition, in the description of the following embodiments, it should be understood that directions such as "right" are set based on the front of the vehicle.

[0044] In addition, in the description of the following embodiments, terms such as "first", "second", etc. may be used to describe various elements, but do not limit these elements. These terms are only used to distinguish one element from other elements and do not limit the order of the elements.

[0045] In addition, in the description of the following embodiments, the concept of "windshield" conceptually includes a front windshield, side windows, a rear windshield, etc., and has the meaning of a windshield at all positions.

[0046] In addition, a vehicle equipped with a pollutant removal device for a windshield according to the present disclosure may include not only a manually driven vehicle but also an autonomous vehicle.

[0047] The present disclosure relates to a pollutant removal device 100 for a windshield, the pollutant removal device 100 moving in the height direction of the windshield 700, and more particularly to a pollutant removal device 100 for a windshield in which a wiper assembly 200 is formed in the width direction of the windshield 700. The wiper assembly 200 moves in the height direction by the driving force received from the drive belts 120 located on both sides of the windshield 700. Accordingly, pollutants on the surface of the windshield 700 can be removed.

[0048] Figure 1Stereogram of a vehicle equipped with a pollutant removal device 100 for a windshield according to an embodiment of the present disclosure. Figure 2 It is a view showing one side end of the windshield 700 where the pollutant removal device 100 for the windshield is located.

[0049] As Figure 1 shown, the vehicle includes a windshield 700 located at the front of the vehicle and a pollutant removal device 100 for the windshield located at the windshield 700. The pollutant removal device 100 for the windshield can be configured to be located at the windshield 700 of the vehicle and can also be configured to be located at the rear windshield, side windows, etc. of the vehicle.

[0050] The wiper assembly 200 of the pollutant removal device 100 for the windshield can be configured to be locally used only in the area where a sensor unit (not shown) is located in the vehicle, and the sensor unit can include a rain sensor and sensors for measuring the driving distance of the vehicle (radar sensors, lidar sensors, etc.).

[0051] As Figure 2 shown, the pollutant removal device 100 for the windshield includes a wiper assembly 200 located at the windshield 700 and configured such that at least a part of the wiper assembly 200 can contact the outer surface of the windshield 700. The pollutant removal device 100 for the windshield further includes a frame connecting shaft 111 configured to be coupled to the frame 240 of the wiper assembly 200. The pollutant removal device 100 for the windshield further includes a rotating roller 110 located outside the frame connecting shaft 111 and rotationally moved by the driving force of a driving belt 120 located at both side ends of the windshield 700.

[0052] The driving belt 120 is configured to be coupled to a driving unit 300 located inside the vehicle and perform a caterpillar movement.

[0053] More particularly, the driving belt 120 is configured to be located at both side ends of the windshield 700. At least one of the upper end or the lower end of the driving belt 120 is coupled to the driving unit 300 such that the driving force of the driving unit 300 is applied to the driving belt 120.

[0054] The pollutant removal device 100 for the windshield may include a guide rail 150 configured to surround the driving belt 120. The guide rail 150 can be configured to be located at both side ends of the windshield 700 such that the driving belt 120 is located inside the guide rail 150.

[0055] The rotating roller 110 rotates and moves along the rotation direction of the driving belt 120 and is disposed inside the driving belt 120. The rotating roller 110 is configured to rotate in the same direction as the rotation direction of the driving belt 120, so as to perform a reciprocating motion along the height direction of the windshield 700 towards the upper end and the lower end of the windshield 700.

[0056] The central axis of the rotating roller 110 includes a frame connection shaft 111 connected to the frame 240 of the wiper assembly 200. The frame connection shaft 111 is disposed independently of the rotating roller 110. Therefore, even if the rotating roller 110 rotates along the driving belt 120, due to the contact between the wiper assembly 200 and the windshield 700, the frame connection shaft 111 does not rotate but moves towards the upper end and the lower end of the windshield 700.

[0057] The driving belt 120 is configured such that the driving force of the driving unit 300 is applied to the driving belt 120 through the driving gears located at at least one end or both ends of the windshield 700. The idle gears 141, 142 that contact the driving gears and thus are linked to the rotation direction of the driving gears may be configured to contact the frame connection shaft 111 that moves along the height direction of the windshield 700 simultaneously with the rotating roller 110.

[0058] More particularly, the lower idle gear 141 is configured to contact the frame connection shaft 111 when the wiper assembly 200 moves downward and thus is located at the lower end of the windshield 700. The upper idle gear 142 is configured to contact the frame connection shaft 111 when the wiper assembly 200 moves upward and thus is located at the upper end of the windshield 700.

[0059] The idle gears 141, 142 are configured to change the rotation direction of the frame connection shaft 111 coupled to the rotating roller 110. More particularly, the idle gears 141, 142 are configured to rotate the frame connection shaft 111 by a predetermined angle when the frame connection shaft 111 contacts the corresponding idle gear 140, and change the rotation direction of the rotating roller 110 linked to the frame connection shaft 111.

[0060] In addition, the wiper assembly 200 coupled to the frame connection shaft 111 is configured such that the direction of the linear motion of the wiper assembly 200 changes according to the change in the rotation direction of the rotating roller 110.

[0061] In other words, since the driving unit 300 changes the rotation direction of the driving gear when the idle gears 141, 142 and the frame connection shaft 111 contact, the frame connection shaft 111 that contacts the idle gears 141, 142 first rotates by a predetermined angle, and then the rotation direction of the rotating roller 110 changes, so that the direction of the linear motion of the wiper assembly 200 can be changed.

[0062] More particularly, since the controller 400 is configured to change the rotation direction of the drive unit 300 when the idle gears 141 and 142 contact the frame connection shaft 111, the rotation direction of the drive belt 120 is changed. Accordingly, the direction of the rotational movement and the linear movement of the rotating roller 110 can be changed.

[0063] In addition, the frame 240 connected to the frame connection shaft 111 is configured to rotate by a predetermined angle. Accordingly, the first wiper blade 210 and the second wiper blade 220 can selectively contact the windshield 700 as the wiper assembly 200 moves toward the upper and lower ends of the windshield 700.

[0064] As Figure 3A shown, the frame 240 of the wiper assembly 200 is configured to include an inclined portion 230 that is inclined at a predetermined angle. The first wiper blade 210 and the second wiper blade 220 are respectively located at both ends of the frame 240.

[0065] Accordingly, according to an embodiment of the present disclosure, when the frame 240 moves upward, the second wiper blade 220 can contact the upper surface of the windshield 700. When the frame 240 moves downward, the first wiper blade 210 can contact the upper surface of the windshield 700.

[0066] On the other hand, according to another embodiment of the present disclosure, when the frame 240 moves upward, the first wiper blade 210 can contact the windshield 700. When the frame 240 moves downward, the second wiper blade 220 can contact the windshield 700.

[0067] In summary, the contaminant removal device 100 for a windshield according to the present disclosure can be configured such that the wiper blade that contacts the windshield 700 when the wiper assembly 200 moves upward is different from the wiper blade that contacts the windshield 700 when the wiper assembly 200 moves downward.

[0068] Each of the first wiper blade 210 and the second wiper blade 220 may include one of a wiper blade and a coating wiper blade capable of removing contaminants, and may be set to one of these wiper blades according to the user's requirements.

[0069] In addition, each of the first wiper blade 210 and the second wiper blade 220 may include a double-edged wiper blade, thereby more easily removing contaminants on the windshield 700.

[0070] The controller 400 according to the present disclosure is configured to receive a signal indicating contact between the idle gear 140 and the frame connection shaft 111. The controller 400 is also configured to control the rotation direction of the drive unit 300 when the controller 400 receives a signal indicating contact between the idle gear 140 and the frame connection shaft 111.

[0071] In addition, the controller 400 is configured to receive data regarding precipitation from a rain sensor (not shown), and control the moving time and number of movements of the wiper assembly 200 based on the received data.

[0072] In addition, the controller 400 is configured to control the wiper assembly 200 to move locally within an area of the windshield 700 where a sensor unit (not shown) is installed.

[0073] In addition, the controller 400 is configured to control the contaminant removal device 100 for the windshield such that when the user does not request driving the wiper assembly 200, the wiper assembly 200 is located at the uppermost or lowermost end of the windshield 700.

[0074] Figure 3A FIG. 10 is a right cross-sectional view of the windshield 700 when the wiper assembly 200 moves toward the lower end of the windshield 700. Figure 3B FIG. 11 is a front view of the windshield 700 in this state.

[0075] The lower end drive roller 131 rotates counterclockwise by receiving a driving force from the drive unit 300. Accordingly, the lower end idler gear 141 rotates clockwise by receiving a rotational force from the lower end drive roller 131.

[0076] When the drive belt 120 rotates counterclockwise according to the rotational direction of the lower end drive roller 131, the rotating roller 110 rotates in the same direction as the drive belt 120 around the frame connection shaft 111, and thus moves toward the lower end of the windshield 700.

[0077] The frame 240 coupled to the frame connection shaft 111 is configured such that when the wiper assembly 200 moves toward the lower end of the windshield 700, the upper end of the frame 240 can be inclined by a predetermined angle toward the windshield 700. Accordingly, the first wiper blade 210 located at the rear end of the frame 240 contacts the windshield 700.

[0078] The first wiper blade 210 may include a wiper blade. When the wiper assembly 200 moves downward, the wiper blade removes contaminants on the windshield 700.

[0079] Figure 4A FIG. 18 is a right cross-sectional view of the windshield 700 when the wiper assembly 200 moves downward and thus the frame connection shaft 111 and the lower end idler gear 141 come into contact. Figure 4B FIG. 19 is a front view of the windshield 700 in this state.

[0080] As Figure 4A and Figure 4BAs shown, when the rotating roller 110 moves toward the lowermost end of the windshield 700, the frame connecting shaft 111 contacts the lower idler gear 141. When the frame connecting shaft 111 contacts the lower idler gear 141, a signal indicating the contact is applied to the controller 400, and the controller 400 changes the rotation direction of the drive unit 300.

[0081] The frame connecting shaft 111 includes the central shaft of the rotating roller 110 and extends toward one side end of the windshield 700 adjacent to the rotating roller 110 as compared with the width of the rotating roller 110. In other words, as compared with the width of the rotating roller 110, the frame connecting shaft 111 protrudes toward one side end of the windshield 700 in the width direction.

[0082] The frame connecting shaft 111 protruding to the outside of the rotating roller 110 is located at a position where it contacts the lower idler gear 141. The lower idler gear 141 is configured to change the rotation direction of the frame connecting shaft 111 without contacting the rotating roller 110.

[0083] More particularly, when the frame connecting shaft 111 contacts the lower idler gear 141, the frame connecting shaft 111 first rotates a predetermined angle in the traveling direction, and then the rotation direction of the lower drive roller 131 is changed by the driving force.

[0084] When the frame connecting shaft 111 contacts the lower idler gear 141, the frame 240 rotates a predetermined angle simultaneously with the frame connecting shaft 111, so that the first wiper blade 210 is spaced apart from the windshield 700, and the second wiper blade 220 contacts the windshield 700.

[0085] When the controller 400 changes the rotation direction of the drive unit 300, the rotation direction of the drive belt 120 changes from the counterclockwise direction to the clockwise direction. The rotation direction of the lower idler gear 141 changes from the clockwise direction to the counterclockwise direction.

[0086] The frame connecting shaft 111 contacting the lower idler gear 141 rotates in the clockwise direction in response to the rotation direction of the lower idler gear 141. Therefore, the frame connecting shaft 111 and the rotating roller 110 rotate in the clockwise direction and move toward the upper end of the windshield 700.

[0087] In summary, since the frame connecting shaft 111 is configured to move independently of the rotating roller 110, when the frame connecting shaft 111 moves downward and contacts the lower idler gear 141, the frame connecting shaft 111 rotates a predetermined angle independently of the rotating roller 110. Thereafter, as the rotation direction of the drive unit 300 changes, the frame connecting shaft 111 and the rotating roller 110 rotate simultaneously in a direction opposite to the rotation direction of their downward movement. Therefore, the traveling direction of the wiper assembly 200 can be changed.

[0088] Figure 5A It is a right sectional view of the windshield 700 when the wiper assembly 200 moves upward. Figure 5B It is a front view of the windshield 700 in a state where the wiper assembly 200 moves upward.

[0089] As Figure 5A and Figure 5B shown, the rotating roller 110 is configured to rotate clockwise through the lower idler gear 141 and the lower driving roller 131, and move integrally with the wiper assembly 200 toward the upper end of the windshield 700.

[0090] In addition, since the lower idler gear 141 contacts the frame connecting shaft 111 and thus the frame 240 rotates by a predetermined angle, the wiper assembly 200 moves toward the upper end of the windshield 700 while maintaining the contact state between the second wiper blade 220 and the windshield 700.

[0091] The second wiper blade 220 may include a coating wiper blade configured to coat the windshield 700, and may include two or more wiper blades.

[0092] In addition, the driving unit 300 is coupled to at least one of the lower driving roller 131 or the upper driving roller 132 to apply a driving force. Accordingly, the upper driving roller 132 rotates clockwise, and the drive belt 120 also rotates in the same direction as the upper driving roller 132.

[0093] Since the upper idler gear 142 is located at a position contacting the upper driving roller 132, when the upper driving roller 132 rotates clockwise, the upper idler gear 142 rotates counterclockwise.

[0094] Figure 6A It is a right sectional view of the windshield 700 when the wiper assembly 200 contacts the upper end of the windshield 700. Figure 6B It is a front view of the windshield 700 in a state where the wiper assembly 200 is located at the upper end of the windshield 700.

[0095] As Figure 6A and Figure 6B shown, when the rotating roller 110 and the frame connecting shaft 111 moving toward the upper end of the windshield 700 are located at the uppermost end of the windshield 700, the upper idler gear 142 contacts the frame connecting shaft 111.

[0096] When the frame connecting shaft 111 contacts the upper idler gear 142, the frame connecting shaft 111 rotates by a predetermined angle so that the second wiper blade 220 is spaced apart from the windshield 700, and the first wiper blade 210 contacts the upper surface of the windshield 700.

[0097] The frame connection shaft 111 rotates first, and then the rotation direction of the drive unit 300 changes. As a result, the drive belt 120 and the drive rollers 131 and 132 rotate, causing the rotation roller 110 to move downward while the first wiper blade 210 contacts the upper surface of the windshield 700.

[0098] More particularly, the controller 400 receives a signal indicating contact between the upper idler gear 142 and the frame connection shaft 111, and changes the rotation direction of the drive unit 300 according to the received signal. As a result, the wiper assembly 200 moves downward along with the rotation roller 110 and the frame connection shaft 111 toward the lower end of the windshield 700.

[0099] In summary, the rotation roller 110 and the frame connection shaft 111 are configured to move toward the upper or lower end of the windshield 700 according to the rotation direction of the drive belt 120. Therefore, the rotation direction of the rotation roller 110 can be changed by contacting the upper idler gear 142 located at the uppermost end of the windshield 700 and the frame connection shaft 111 contacting the lower idler gear 141 located at the lowermost end of the windshield 700.

[0100] In addition, the frame 240 coupled to the frame connection shaft 111 is configured to rotate a predetermined angle before the rotation direction of the rotation roller 110 changes. The predetermined angle can be set such that the first wiper blade 210 and the second wiper blade 220 can selectively contact the windshield 700.

[0101] Figure 7A FIG. is a view showing the cleaning liquid pipe 510 located in the frame connection shaft 111. Figure 7B FIG. is a view showing the coupling relationship between the cleaning liquid nozzle 500 and the element connected to the cleaning liquid nozzle 500 to supply the cleaning liquid to the upper surface of the windshield 700.

[0102] According to an embodiment of the present disclosure, the cleaning liquid nozzle 500 is configured to be located on the cleaning liquid assembly adjacent to the first wiper blade 210. The cleaning liquid nozzle 500 includes a cleaning liquid connection unit connected to a reservoir (not shown) located inside the vehicle such that fluid can flow between them.

[0103] The cleaning liquid connection unit includes a ductile cleaning liquid cable (not shown) located inside the vehicle body, and includes a cleaning liquid pipe 510 configured to be coupled to the cleaning liquid nozzle 500. The cleaning liquid pipe 510 is configured to be formed along the frame connection shaft 111, and in one embodiment, the cleaning liquid pipe 510 is configured to be connected to at least one cleaning liquid nozzle 500 in the width direction of the frame 240 within the frame 240.

[0104] In one embodiment, the cleaning liquid nozzle 500 may be located at a portion of the frame 240 facing the windshield 700, i.e., at a position adjacent to the first wiper blade 210.

[0105] Therefore, when the wiper assembly 200 linked to the rotary roller 110 moves toward the lower end of the windshield 700, the cleaning liquid can be sprayed onto the moving path of the first wiper blade 210. The sprayed cleaning liquid can be removed from the surface of the windshield 700 by the first wiper blade 210.

[0106] According to another embodiment of the present disclosure, the cleaning liquid nozzle 500 may be configured to be located at a position adjacent to the second wiper blade 220. The cleaning liquid nozzle 500 may also be configured to spray the cleaning liquid onto the upper surface of the windshield 700 through a cleaning liquid pipe 510, which is configured to be connected to the cleaning liquid nozzle 500 along the frame connection shaft 111 such that fluid can flow between them.

[0107] Thus, the pollutant removal device 100 for the windshield according to the present disclosure is configured such that the cleaning liquid flowing into the wiper assembly 200 can be sprayed onto the upper surface of the windshield 700. The cleaning liquid can be sprayed through the cleaning liquid nozzle 500 formed adjacent to at least one of the first wiper blade 210 or the second wiper blade 220.

[0108] Figure 8A FIG. is a view showing the coating liquid pipe 610 located in the frame connection shaft 111. Figure 8B FIG. is a view showing the coupling relationship between the coating nozzle 600 and the element connected to the coating nozzle 600 to supply the coating liquid to the upper surface of the windshield 700.

[0109] According to an embodiment of the present disclosure, the coating liquid pipe 610 is configured to be located at the other end of the frame connection shaft 111 opposite to the end of the frame connection shaft 111 where the cleaning liquid pipe 510 is located, so as to spray the coating liquid stored in the vehicle onto the upper surface of the windshield 700 through the wiper assembly 200.

[0110] The coating liquid pipe 610 is integrally formed with the frame connection shaft 111, so as to move along the height direction of the windshield 700 together with the frame connection shaft 111. Therefore, the coating liquid in the reservoir located inside the vehicle is supplied to the coating liquid pipe 610 through a pipe or conduit formed of a ductile material.

[0111] In addition, the coating nozzle 600 is configured such that fluid can flow along the inside of the frame 240. Therefore, the coating nozzle 600 provided at a position adjacent to the second wiper blade 220 sprays the coating liquid.

[0112] The coating nozzle 600 is located on a surface of the frame 240 facing the windshield 700. In this embodiment, at least one coating nozzle 600 may be located in the width direction of the frame 240.

[0113] According to an embodiment of the present disclosure, the coating liquid pipe 610 is configured to supply the coating liquid to the coating nozzle 600 located at a position adjacent to the second wiper blade 220. Therefore, when the wiper assembly 200 moves toward the upper end of the windshield 700, the coating nozzle 600 is located in front of the second wiper blade 220.

[0114] Therefore, when the wiper assembly 200 moves upward, the second wiper blade 220 can pass through the area where the coating liquid has been sprayed, so that the coating liquid can be applied to the upper surface of the windshield 700.

[0115] Refer to Figures 7A to 8B , the wiper assembly 200 in the pollutant removal device 100 for the windshield includes a cleaning liquid nozzle 500 and a coating nozzle 600, and the pollutant removal device 100 selectively sprays at least one of the cleaning liquid or the coating liquid according to the upward or downward movement of the wiper assembly 200.

[0116] Figure 9 The frame 240 of the wiper assembly 200 with variable length according to an embodiment of the present disclosure is shown.

[0117] The wiper assembly 200 according to the present disclosure is located at a position corresponding to the width direction of the windshield 700 of the vehicle. The wiper assembly 200 is configured such that the length of the frame 240 of the wiper assembly 200 can be changed in response to the width of the windshield 700 according to different situations of the height of the windshield 700.

[0118] The frame 240 may include at least two sub - frames, and there may be any coupling relationship between the two sub - frames that can make the length of the frame 240 variable in the width direction of the windshield 700. Therefore, the sub - frames can be coupled to each other in a foldable manner, a retractable manner, etc.

[0119] According to an embodiment of the present disclosure, the frame 240 includes two sub - frames, that is, a first sub - frame 241 and a second sub - frame 242 disposed in the width direction of the windshield 700. The first sub - frame 241 and the second sub - frame 242 are configured such that one end of the second sub - frame 242 is inserted into the first sub - frame 241.

[0120] Therefore, the frame 240 coupled to the frame connection shaft 111 moves in the upward and downward directions of the windshield 700 according to the movement of the rotating roller 110. In response to a change in the width of the windshield 700, the second sub-frame 242 is inserted into the first sub-frame 241, so that the wiper assembly 200 can move along the windshield 700 having a variable width.

[0121] The first sub-frame 241 and the second sub-frame 242 are configured such that the first wiper blade 210 and the second wiper blade 220 are located at each of the first sub-frame 241 and the second sub-frame 242. Therefore, a total of four wiper blades 210 and 220 can be located in the region A where the first sub-frame 241 and the second sub-frame 242 overlap each other.

[0122] It is obvious from the above description that the pollutant removal device for a windshield according to an embodiment of the present disclosure can have the following effects through the above configuration and the coupling and use relationships.

[0123] The pollutant removal device for a windshield is configured to move toward the upper and lower ends of the windshield to remove pollutants on the windshield, thereby improving the visibility of the user.

[0124] The pollutant removal device for a windshield can provide a wider field of view for an autonomous vehicle.

[0125] In addition, the pollutant removal device for a windshield includes a wiper assembly, the width of which changes according to the width of the windshield, so that it can have high compatibility.

[0126] The present disclosure has been described in detail with reference to specific embodiments of the present disclosure. However, those of ordinary skill in the art should understand that these embodiments can be changed without departing from the principles and ideas of the present disclosure, and the scope of the present disclosure is defined by the appended claims and their equivalents.

Claims

1. A pollutant removal device for a windshield, comprising: Drive belts located on both side surfaces of the windshield; A drive unit that applies a driving force to the drive belts; Rotating rollers that move along the drive belts; Wiper assemblies located on the windshield to move along with the rotating rollers; A controller that changes the rotation direction of the drive unit; Idler gears located at the ends of the drive belts to change the rotation direction of the rotating rollers; And Frame connecting shafts that are connected to both ends of the wiper assemblies and are located inside the rotating rollers, thereby contacting the idler gears to change the rotation direction of the rotating rollers.

2. The pollutant removal device for a windshield according to claim 1, wherein The wiper assembly includes: A frame connected to the frame connecting shaft; A first wiper blade located at one end of the frame; and A second wiper blade located at the other end of the frame, When the frame rotates around the frame connecting shaft, the first wiper blade and the second wiper blade selectively contact the windshield.

3. The pollutant removal device for a windshield according to claim 2, wherein When the frame connecting shaft contacts the idler gear, the controller controls to rotate the frame by a predetermined angle and then change the rotation direction of the rotating roller.

4. The pollutant removal device for a windshield according to claim 2, wherein A cleaning liquid nozzle is provided at a position adjacent to the first wiper blade; and Cleaning liquid is sprayed onto the upper surface of the windshield through the cleaning liquid nozzle.

5. The pollutant removal device for a windshield according to claim 2, wherein A coating nozzle is provided at a position adjacent to the second wiper blade; and Coating liquid is sprayed onto the upper surface of the windshield through the coating nozzle.

6. The pollutant removal device for a windshield according to claim 2, wherein The frame includes at least two sub-frames; and The at least two sub-frames overlap each other such that the length of the frame changes in the width direction of the windshield.

7. The pollutant removal device for a windshield according to claim 1, further comprising: Guide rails provided along the windshield, Wherein the drive belts are located inside the guide rails.

8. The pollutant removal device for a windshield according to claim 1, wherein The idler gear contacts the frame connecting shaft to change the rotation direction of the rotating roller.

9. The pollutant removal device for a windshield according to claim 1, wherein When the wiper assembly is not in operation, the controller controls the wiper assembly to be located at the uppermost or lowermost end of the windshield.

10. The pollutant removal device for a windshield according to claim 2, wherein The first wiper blade is located at a position closer to the upper end of the windshield than the second wiper blade, and when the wiper assembly moves downward along the windshield, the first wiper blade contacts the windshield.

11. The pollutant removal device for a windshield according to claim 10, wherein When the wiper assembly moves upward along the windshield, the second wiper blade contacts the windshield.

12. The contaminant removal device for a windshield according to claim 1, wherein the controller controls the wiper assembly to move locally within the area of the windshield where the sensor unit is installed.

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