Windscreen wiper and vehicle

Abstract

The invention relates to the technical field of windscreen wipers, in particular to a windscreen wiper and a vehicle. The windscreen wiper comprises a first structural part, one end of the first structural part is suitable for being rotationally connected with a vehicle body, and the first structural part is provided with a groove extending in the first direction; the scraping blade assembly is connected with the groove; the transmission assembly is in transmission connection with the doctor blade assembly, and when the first structural part rotates to be close to the preset position, the doctor blade assembly slidably extends out relative to the first structural part; and when the first structural part rotates away from the preset position, the scraper assembly slides and retracts relative to the first structural part. The preset position can be the position where the first structural part rotates to the corner position of the corresponding vehicle window, in this way, the corner position of the vehicle window can be scraped and brushed by the scraper assembly, and then the effective view range of a driver during vehicle driving is widened.

Description

Technical Field

[0001] The present invention relates to the technical field of windshield wipers, and in particular to a windshield wiper and a vehicle. Background Art

[0002] For existing vehicles, windshield wipers are important devices for ensuring vehicle driving safety. The wipers can clear rain, snow, dust and other materials on the windows to ensure that the driver has a clear field of vision.

[0003] Existing windshield wipers are typically mounted on the outside of the car window, pivoting around a central point. This means the wipers typically have a fan-shaped wiping pattern. This means they can't reach the corners of the window, making it difficult for the driver to see a wider field of view. Summary of the Invention

[0004] To solve the above problems, an embodiment of the present invention provides a wiper and a vehicle.

[0005] In a first aspect, an embodiment of the present invention provides a wiper, comprising:

[0006] a first structural member, one end of which is adapted to be rotatably connected to the vehicle body, the first structural member having a groove extending along a first direction;

[0007] a scraper assembly connected to the groove;

[0008] A transmission assembly, the transmission assembly is in transmission connection with the scraper assembly,

[0009] When the first structural member rotates close to a preset position, the scraper assembly extends relative to the first structural member; when the first structural member rotates away from the preset position, the scraper assembly retracts relative to the first structural member.

[0010] Optionally, the transmission assembly includes a first transmission member and a second transmission member; the first transmission member is connected to the first structural member, the second transmission member is transmission-connected to the scraper assembly, and the first transmission member is transmission-connected to the second transmission member;

[0011] The first structural member rotates and drives the first transmission member to move. The first transmission member moves and drives the second transmission member to move. The second movement member drives the scraper assembly to extend or retract relative to the first structural member.

[0012] Optionally, the transmission assembly includes a planet carrier and a ring gear;

[0013] The first transmission member and the second transmission member are both gears, and the first transmission member, the second transmission member, the planet carrier, and the ring gear constitute a planetary gear mechanism;

[0014] The first structural member rotates close to the preset position and drives the first transmission member to drive the second transmission member to move, and the second transmission member drives the scraper assembly to extend relative to the first structural member; the first structural member rotates away from the preset position and drives the first transmission member to drive the second transmission member to move, and the second transmission member drives the scraper assembly to retract relative to the first structural member.

[0015] Optionally, the ring gear is adapted to be fixedly connected to the vehicle body; the first transmission member is concentrically arranged with the ring gear, and the second transmission member is simultaneously engaged with the ring gear and the first transmission member for transmission;

[0016] The planet carrier and the first transmission member are relatively rotatable around the axis of the first transmission member, and the second transmission member is rotationally connected to the planet carrier.

[0017] Optionally, the transmission assembly further includes a first connecting rod and a second connecting rod;

[0018] The first end of the first connecting rod is fixedly connected to the second transmission member, the first end of the second connecting rod is rotatably connected to the second end of the first connecting rod, and the second end of the second connecting rod is rotatably connected to the scraper assembly.

[0019] Optionally, the first structural member includes a swinging member and a rotating shaft, the swinging member extends along the first direction, and the groove is arranged on the surface of the swinging member; the rotating shaft extends along the second direction, the first end of the rotating shaft is suitable for rotationally connecting with the vehicle body, and the second end of the rotating shaft is fixedly connected to the swinging member; the second direction intersects with the first direction.

[0020] Optionally, the first transmission member is fixedly connected to the rotating shaft and is concentrically arranged.

[0021] Optionally, the wiper includes a first driving member and a second driving member;

[0022] The first structural member is in transmission connection with the first driving member; the transmission assembly includes a first transmission member and a second transmission member, the first transmission member is in transmission connection with the second transmission member; the first driving member is in transmission connection with the first structural member, the second transmission member is in transmission connection with the scraper assembly, and the first transmission member is in transmission connection with the second driving member;

[0023] When the first driving member drives the first structural member to rotate close to the preset position, the second driving member drives the first transmission member to move, the first transmission member drives the second transmission member to move, and the second transmission member drives the scraper assembly to extend relative to the first structural member; when the first driving member drives the first structural member to rotate away from the preset position, the second driving member drives the first transmission member to move, the first transmission member drives the second transmission member to move, and the second transmission member drives the scraper assembly to retract relative to the first structural member.

[0024] Optionally, the first structural member has two preset positions within the rotation stroke, and within a cycle in which the first structural member completes one reciprocating rotation, the scraper assembly extends and retracts four times relative to the first structural member.

[0025] Optionally, the scraper assembly includes a second structural member and a scraper rod, the second structural member is connected to the groove, and the scraper rod is rotatably connected to the second structural member and is suitable for mounting the scraper.

[0026] Optionally, the wiper blade assembly includes an elastic member, two ends of which are respectively connected to the second structural member and the scraper rod; the elastic member is suitable for pressing the scraper rod toward the vehicle window surface.

[0027] Optionally, the transmission assembly includes a transmission belt, and the first transmission member and the second transmission member are both pulleys; the transmission belt is connected to the first transmission member and the second transmission member at the same time.

[0028] Optionally, the transmission assembly includes a transmission chain, and the first transmission member and the second transmission member are both sprockets; the transmission chain is connected to the first transmission member and the second transmission member at the same time.

[0029] Optionally, the scraper assembly is slidably connected to the groove, and when the first structural member rotates close to the preset position, the scraper assembly slides out relative to the first structural member; when the first structural member rotates away from the preset position, the scraper assembly slides back relative to the first structural member.

[0030] In a second aspect, an embodiment of the present invention provides a vehicle, comprising any wiper as described in the first aspect.

[0031] Compared with the prior art, the present invention has the following advantages:

[0032] The wiper provided in an embodiment of the present invention includes a first structural member, a wiper blade assembly, and a transmission assembly. The first structural member is rotatably connected to the vehicle body and has a groove extending in a first direction, and the wiper blade assembly is connected to the groove. When the first structural member rotates toward a preset position, the wiper blade assembly extends relative to the first structural member; when the first structural member rotates away from the preset position, the wiper blade assembly retracts relative to the first structural member. The preset position can be the position when the first structural member rotates to the corner position corresponding to the vehicle window, which facilitates the wiper blade assembly to wipe the corner position of the vehicle window, thereby improving the driver's effective field of view when driving the vehicle.

[0033] The above description is only an overview of the technical solution of the present invention. In order to more clearly understand the technical means of the present invention, it can be implemented in accordance with the contents of the specification. In order to make the above and other purposes, features and advantages of the present invention more obvious and easy to understand, the specific implementation methods of the present invention are specifically listed below. BRIEF DESCRIPTION OF THE DRAWINGS

[0034] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the following briefly introduces the drawings required for describing the embodiments.

[0035] Figure 1 is an axonometric view of a wiper blade according to some embodiments of the present invention;

[0036] Figure 2 for Figure 1 an axonometric view in another direction;

[0037] Figure 3 for Figure 1 Explosion diagram of

[0038] Figure 4 for Figure 1 Axonometric drawing of the rotating shaft and the first transmission member;

[0039] Figure 5 for Figure 1 Axonometric drawing of the transmission assembly;

[0040] Figure 6 for Figure 5 Schematic cross-section diagram;

[0041] Figure numerals: 1, first structural member; 1a, groove; 1b, conical surface; 11, swinging member; 12, rotating shaft; 121, external thread; 2, scraper assembly; 21, second structural member; 22, scraper rod; 3, transmission assembly; 31, first transmission member; 32, second transmission member; 33, planetary carrier; 34, ring gear; 35, first connecting rod; 36, second connecting rod; 4, nut; 5, motor; X-first direction; Y-second direction. DETAILED DESCRIPTION

[0042] Exemplary embodiments of the present invention will be described in more detail below with reference to the accompanying drawings. Although exemplary embodiments of the present invention are shown in the accompanying drawings, it should be understood that the present invention may be implemented in various forms and should not be limited by the embodiments set forth herein. Rather, these embodiments are provided to enable a more thorough understanding of the present invention and to fully convey the scope of the present invention to those skilled in the art.

[0043] For existing vehicles, windshield wipers are important devices for ensuring vehicle driving safety. The wipers can clear rain, snow, dust and other materials on the windows to ensure that the driver has a clear field of vision.

[0044] Existing windshield wipers are typically mounted on the outside of the car window, pivoting around a central point during use. This means the wiper's wiping range is typically fan-shaped. However, the shape of existing car windows is nearly rectangular, meaning the wipers cannot reach the corners of the window that are away from the wiper's center of rotation.

[0045] During actual driving, drivers sometimes need to observe road conditions from corners. Since wipers have difficulty reaching these locations, the driver's effective field of view is easily obstructed by rain, snow, dust, etc. In other words, existing wipers cannot provide the driver with a wider effective field of view.

[0046] In order to solve the above problems, an embodiment of the present application provides a wiper and a vehicle.

[0047] In the first aspect, the present application provides a wiper, referring to Figure 1 The wiper specifically includes a first structural component 1, a wiper blade assembly 2 and a transmission assembly 3.

[0048] The first structural member 1 is the primary component of the wiper blade. During use, driven by a power source such as an electric motor, hydraulic motor, or pneumatic motor, the first structural member 1 can swing about a central point located on the vehicle to drive the wiper blade assembly 2 to wipe the window glass. In this embodiment, the first structural member 1 can be in the form of a straight rod extending in a first direction X and is provided with a groove 1a extending in the first direction X.

[0049] refer to Figure 2The wiper blade assembly 2 is the part of the wiper used to wipe the car window. The wiper blade assembly 2 is movably connected to the groove 1a and can move along the groove 1a under the action of external force. Specifically, the wiper blade assembly 2 can move along the groove 1a toward the outside of the first structural member 1, or can move along the groove 1a toward the inside of the first structural member 1. The specific connection method between the wiper blade assembly 2 and the groove 1a can be determined according to actual needs. For example, the wiper blade assembly 2 is provided with a guide block, which is inserted into the groove 1a to achieve a sliding connection between the wiper blade assembly and the groove 1a. Alternatively, the wiper blade assembly 2 can be provided with a guide column, and a guide groove is provided on the groove 1a, and the guide column is inserted into the guide groove, so that the wiper blade assembly 2 can slide in the groove 1a along the first direction X, and at the same time, the wiper blade assembly 2 can rotate relative to the first structural member 1 around the axial direction of the guide column.

[0050] The transmission assembly 3 is the component that provides the force to the scraper assembly 2 and is in transmission connection with the scraper assembly 2. The first structural member 1 has one, two, or even more preset positions within its rotational range. When the first structural member 1 rotates closer to the preset position, the scraper assembly 2 slides and extends relative to the first structural member 1. When the first structural member 1 rotates away from the preset position, the scraper assembly 2 slides and retracts relative to the first structural member 1.

[0051] The preset position of the first structural member 1 is typically set to correspond to a difficult-to-reach area on the vehicle window. Specifically, for the front window of a conventional family sedan, the preset position may be where the first structural member 1 swings to a position corresponding to the corner of the windshield of the front window. A wiper blade is typically located at the lower center of the front window and can swing back and forth relative to the front window. Within the stroke of one reciprocating swing of the first structural member 1, the first structural member 1 has two preset positions. From the driver's perspective inside the vehicle, when the first structural member 1 swings clockwise toward the first preset position, the wiper blade assembly 2 extends as the first structural member 1 swings. When the first structural member 1 is in the first preset position, its extension direction coincides with the corner of the front window, and the wiper blade assembly 2 extends to its maximum position. When the first structural member 1 swings away from the first preset position, the wiper blade assembly 2 retracts as the first structural member 1 swings away. As the first structural member continues to swing, it gradually approaches the second preset position, at which point the wiper blade assembly 2 re-extends as the first structural member 1 swings back. When the first structural member 1 is in the second preset position, the extension direction of the first structural member 1 coincides with the other corner of the front window, and the wiper assembly 2 re-extends to its furthest position. As the first structural member 1 swings away from the second preset position, the wiper assembly 2 retracts with the swing of the first structural member 1. The movement of the wiper assembly 2 when the first structural member 1 swings in the reverse direction, i.e., counterclockwise, can be seen above and will not be further described here.

[0052] The wiper blade assembly 2 of the embodiment of the present application can extend and retract to correspond to the corners of the vehicle window during the swinging of the first structural member 1, thereby accurately and reliably scraping rain, snow, dust, and other debris at the corners. During actual driving, this facilitates the driver's observation of road conditions from the corners, thereby increasing the driver's effective field of view and improving the driver's safety while driving the vehicle.

[0053] refer to Figure 2 In some embodiments of the present application, the transmission assembly 3 may optionally include a first transmission member 31 and a second transmission member 32. The first transmission member 31 is connected to the first structural member 1, the second transmission member 32 is in transmission connection with the first transmission member 31, and the second transmission member 32 is in transmission connection with the scraper assembly 2. When the first structural member 1 rotates, the first structural member 1 can drive the first transmission member 31 to move due to the connection between the first structural member 1 and the first transmission member 31. The first transmission member 31 can transmit the motion to the second transmission member 32, and then the second transmission member 32 drives the scraper assembly 2 to move along the groove 1a.

[0054] refer to Figure 2 In this embodiment of the present application, a transmission relationship exists between the first structural member 1, the first transmission member 31, and the second transmission member 32. By specifically configuring the transmission relationship between the first structural member 1, the first transmission member 31, and the second transmission member 32, the period of movement of the scraper assembly 2 along the groove 1a can be adapted to the period of swinging of the first structural member 1. Specifically, the first transmission member 31 can be in transmission connection with a power source on the vehicle body. This power source can be an electric motor, a hydraulic motor, a pneumatic motor, or the like installed on the vehicle. Driven by the power source, the first structural member 1 swings according to a predetermined period, driving the first transmission member 31 to also move according to a predetermined period. The transmission ratio between the first transmission member 31 and the second transmission member 32 can be set according to actual needs. Under the fixed transmission ratio of the first transmission member 31 and the second transmission member 32, the period of movement of the scraper assembly 2 along the groove 1a can be adapted to the period of swinging of the first structural member 1. That is, within a single reciprocating swing stroke of the first structural member 1, the scraper assembly 2 extends a corresponding number of times based on the number of preset positions passed by the first structural member 1. For example, the swing center of the first structural member 1 is set at the lower end of the vehicle window, and the preset position of the first structural member 1 is the position when the first structural member 1 is directly opposite the two upper corners of the vehicle window along its own extension direction. When the first structural member 1 swings from one extreme position to the other, it can pass through two preset positions, at which time the wiper assembly 2 can extend and retract twice along the groove 1a. When the first structural member 1 swings back from the extreme position to the initial extreme position, it will pass through the two preset positions again, at which time the wiper assembly 2 can extend and retract twice along the groove 1a again.

[0055] The wiper described in the embodiment of the present application can cause the wiper blade assembly 2 to extend and retract in response to the corners of the vehicle window during the swinging of the first structural member 1, thereby accurately and reliably scraping rain, snow, dust, and other debris from these corners. During actual driving, this facilitates the driver's observation of road conditions from the corners, thereby increasing the driver's effective field of view and improving the driver's safety while riding the vehicle. Furthermore, because the first transmission member 31 is connected to the first structural member 1, the movement of the first structural member 1 can also drive the movement of the first transmission member 31. This allows a single drive source to simultaneously drive the swinging of the first transmission member 31 and the movement of the first structural member 1. Driven by the first and second transmission members 31 and 32, this drive source can simultaneously drive the extension and retraction of the wiper blade assembly 2. Compared to a drive method that utilizes separate power sources to separately drive the swinging of the first structural member 1 and the extension and retraction of the wiper blade assembly 2, this method reduces the number of power sources required to swing and retract the wiper on the vehicle, thereby reducing the cost of the wiper and conserving space on the vehicle.

[0056] refer to Figure 1 In some embodiments of the present application, the transmission assembly 3 includes a planetary gear mechanism. Specifically, the first transmission member 31 and the second transmission member 32 are both gears. The transmission assembly 3 also includes a planetary carrier 33 and a ring gear 34. The first transmission member 31, the second transmission member 32, the planetary carrier 33, and the ring gear 34 together constitute a planetary gear mechanism. The fact that the transmission assembly 3 includes a planetary gear mechanism means that the first transmission member 31 and the second transmission member 32 achieve transmission through meshing. The use of gears for the first and second transmission members 31, 32 improves the transmission efficiency between the first and second transmission members 31, 32, and ensures reliable transmission. Furthermore, the use of gears for the first and second transmission members 31, 32 improves the transmission ratio accuracy between the two, making the extension and retraction of the scraper assembly 2 more precise and enabling more accurate adaptation to the swinging motion of the first structural member 1. In the embodiments described herein, the number of teeth on the first transmission member 31 is preferably greater than that on the second transmission member 32. The transmission ratio between the two is set according to actual needs and will not be further described here.

[0057] In some embodiments of the present application, the planet carrier 33 and the first transmission member 31 can optionally rotate relative to each other about the axis of the first transmission member 31. The planet carrier 33 is also rotationally connected to the second transmission member 32. The provision of the planet carrier 33 provides a mounting location for the second transmission member 32 and also helps ensure stable engagement between the first and second transmission members 31, 32. In other words, the provision of the planet carrier 33 prevents disengagement between the first and second transmission members 31, 32, thereby helping to ensure the transmission ratio accuracy and transmission reliability of the first and second transmission members 31, 32.

[0058] The ring gear 34 is an annular structure, and the inner ring hole of the annular structure has teeth extending inward. The ring gear 34 can be fixedly connected to the vehicle body by fastener connection, welding, bonding, etc. When in use, the first transmission member 31 and the planetary carrier 33 can be installed on the same shaft, and the first transmission member 31 and the planetary carrier 33 can rotate relative to each other. The second transmission member 32 is rotatably mounted on the planetary carrier 33, and the second transmission member 32 remains engaged with the first transmission member 31. The first transmission member 31 is arranged concentrically with the ring gear 34, the ring gear 34 is internally engaged with the second transmission member 32, and the second transmission member 32 is externally engaged with the first transmission member 31, so as to form a planetary gear mechanism.

[0059] During wiper operation, the first structural member 1 swings under the influence of an external power source, driving the first transmission member 31 to rotate. The second transmission member 32 rotates along with the rotation of the first transmission member 31 and orbits around the first transmission member 31 along the ring gear 34. The planetary carrier 33 rotates about the axis of the first transmission member 31 along with the orbit of the second transmission member 32. This ensures the transmission ratio accuracy and transmission reliability between the first and second transmission members 31, 32, and thus the transmission reliability of the transmission assembly 3, facilitating accurate matching of the swing period of the first structural member 1 with the extension and retraction period of the wiper blade assembly 2.

[0060] refer to Figure 3 In some embodiments of the present application, the transmission assembly 3 further includes a first connecting rod 35 and a second connecting rod 36. Both the first connecting rod 35 and the second connecting rod 36 preferably employ a straight rod structure. The first end of the first connecting rod 35 is fixedly connected to the second transmission member 32, meaning that rotation of the second transmission member 32 drives the first connecting rod 35 to rotate about the axis of the second transmission member 32. The first end of the second connecting rod 36 is rotationally connected to the second end of the first connecting rod 35, and the second end of the second connecting rod 36 is rotationally connected to the wiper assembly 2. In other words, the first connecting rod 35, the second connecting rod 36, the first structural member 1, and the wiper assembly 2 form a slider-crank mechanism. The first connecting rod 35 is the crank in the slider-crank mechanism and completes a full rotation with the second transmission member 32. The second connecting rod 36 is the connecting rod connecting the crank and the slider in the slider-crank mechanism. The first structural member 1 is the structure in the slider-crank mechanism that guides the sliding direction of the slider, and the wiper assembly 2 is the crank in the slider-crank mechanism. The arrangement of the first connecting rod 35 and the second connecting rod 36 converts the rotation of the second transmission member 32 into linear motion and transmits it to the wiper blade assembly 2. This simple structure and precise and reliable transmission effect can simplify the wiper structure while effectively improving the reliability and accuracy of the extension and retraction of the wiper blade assembly 2, thereby ensuring that the extension and retraction of the wiper blade assembly 2 is well matched with the swinging movement of the first structural member 1.

[0061] refer to Figure 2In some embodiments of the present application, the first structural member 1 includes a rotating shaft 12 and a swinging member 11. The swinging member 11 extends along the first direction X, and the groove 1a is provided on the surface of the swinging member 11 and extends in the same direction as the swinging member 11. Figure 4 , Figure 5 , the rotating shaft 12 extends along the second direction Y, that is, the axial direction of the rotating shaft 12 is in the same direction as the second direction Y. The second direction Y is a direction intersecting with the first direction X, and the first direction X and the second direction Y can be generally intersecting or orthogonal. In the embodiment described in the present application, preferably, the first direction X is orthogonal to the second direction Y. The first end of the rotating shaft 12 is rotatably connected to the vehicle body. Specifically, the first end of the rotating shaft 12 can be inserted into the mounting hole of the vehicle body, or rotatably connected to the vehicle body through a bearing. The second end of the rotating shaft 12 is connected to the swinging member 11. In the embodiment described in the present application, the rotating shaft 12 and the swinging member 11 can be integrally formed, or they can be fixedly connected by welding, interference connection, bonding, etc. Reference Figure 6 , the first end of the rotating shaft 12 can be fixedly connected to the output shaft of the motor 5 on the vehicle body by means of riveting, welding, coupling connection, fastener connection, etc., so as to drive the swinging member 11 to swing. In the embodiment of the present application, both the swinging member 11 and the rotating shaft 12 are provided with a conical surface 1b. During installation, the conical surface 1b of the swinging member 11 is sleeved on the conical surface 1b of the rotating shaft 12. The second end of the rotating shaft 12 has an external thread 121. After the swinging member 11 is installed in place, the nut 4 can be screwed onto the external thread 121 of the rotating shaft 12 so that the swinging member 11 can be pressed and fixed on the rotating shaft 12 by using the nut 4. Under the action of the rotating shaft 12, the swinging member 11 is more easily rotated and installed on the vehicle body. At the same time, the rotating shaft 12 can ensure the swinging accuracy of the swinging member 11, which is more conducive to adapting the swinging action of the first structural member 1 to the telescopic action of the scraper assembly 2.

[0062] refer to Figure 4 In some embodiments of the present application, the first transmission member 31 is fixedly connected to the rotating shaft 12 and is concentrically arranged. Specifically, the first transmission member 31 can be fixedly connected to the rotating shaft 12 by interference fit, welding, bonding, etc. In this way, the rotating shaft 12 can simultaneously drive the first transmission member 31 and the swinging member 11 to rotate, so that the first transmission member 31 and the swinging member 11 can be driven by one power source. This is conducive to reducing the number of power sources required to drive the wiper, and can simplify the structure of the vehicle and reduce the material cost of the vehicle. At the same time, since the first transmission member 31 and the swinging member 11 are driven by the same power source, it is easier to keep the power obtained by the first transmission member 31 and the first structural member 1 the same, and it is more conducive to adapting the telescopic action of the wiper assembly 2 to the swinging action of the first structural member 1 by specifically setting the transmission ratio of the first transmission member 31 and the second transmission member 32.

[0063] In some embodiments of the present application, the first structural member 1 and the transmission assembly 3 may optionally be transmission-connected to different power sources of the vehicle body. Specifically, the wiper includes a first drive member and a second drive member. The first structural member 1 is transmission-connected to the first drive member, which may be a torque-outputting drive member such as an electric motor, a hydraulic motor, or a pneumatic motor. The first structural member 1 may be directly fixedly connected to the driving end of the first drive member to achieve transmission. Alternatively, the first drive member and the first structural member 1 may be transmission-connected via a transmission mechanism such as a gear set or a connecting rod mechanism.

[0064] The transmission assembly 3 includes a first transmission member 31 and a second transmission member 32. The first transmission member 31 is transmission-connected to the second drive member. The second drive member can be a drive member that outputs torque, such as an electric motor, a hydraulic motor, or a pneumatic motor. The first transmission member 31 can achieve transmission by being directly fixedly connected to the drive end of the second drive member, or the first transmission member 31 and the second drive member can also achieve transmission connection through a transmission mechanism such as a gear set or a connecting rod mechanism. The second transmission member 32 is transmission-connected to the scraper assembly 2. Specifically, the two can achieve transmission connection by being directly connected, or by being transmitted through a transmission mechanism such as a gear set or a connecting rod mechanism. The transmission connection method between the first transmission member 31 and the second transmission member 32 can be determined based on the specific selection of the first transmission member 31 and the second transmission member 32. For example, when the first transmission member 31 and the second transmission member 32 are both gears, the two can be transmitted by meshing. When the first transmission member 31 and the second transmission member 32 are connecting rods, the two can be transmitted by being hinged.

[0065] When the first driving member moves, the first structural member 1 can be driven by the first driving member to rotate closer to the preset position. During this process, the second driving member can drive the first transmission member 31 to move, the first transmission member 31 drives the second transmission member 32 to move, and the second transmission member 32 drives the scraper assembly 2 to slide and extend relative to the first structural member 1. When the first driving member drives the first structural member 1 to rotate away from the preset position, the second driving member drives the first transmission member 31 to move, the first transmission member 31 drives the second transmission member 32 to move, and the second transmission member 32 drives the scraper assembly 2 to slide and retract relative to the first structural member 1.

[0066] By specifically setting the motion parameters of the first drive member, the drive parameters of the second drive member, and the transmission ratio between the mechanisms, the period of movement of the wiper assembly 2 along the groove 1a can be adapted to the period of swinging of the first structural member 1. That is, within a single reciprocating swing stroke of the first structural member 1, the wiper assembly 2 extends a corresponding number of times based on the number of preset positions passed by the first structural member 1. For example, the swing center of the first structural member 1 is set at the lower end of the vehicle window, and the preset positions of the first structural member 1 are the positions when the first structural member 1 is facing the two corners above the vehicle window along its own extension direction. When the first structural member 1 swings from one extreme position to another, it can pass through two preset positions, the two corner positions above the vehicle window, at which time the wiper assembly 2 can complete two extensions and two retractions along the groove 1a. When the first structural member 1 swings back from the extreme position to the initial extreme position, it will pass through the two preset positions again, at which time the wiper assembly 2 can again complete two extensions and two retractions along the groove 1a.

[0067] The wiper described in the embodiment of the present application can extend and retract the wiper blade assembly 2 relative to the corners of the vehicle window during the swinging of the first structural member 1, thereby accurately and reliably scraping rain, snow, dust, and other debris from these corners. During actual driving, this facilitates the driver's observation of road conditions from the corners, thereby increasing the driver's effective field of view and improving the driver's safety while riding the vehicle. Furthermore, because the first transmission member 31 and the first structural member 1 are driven by different drive sources, the movement of the second transmission member 32 by the first transmission member 31 and the extension or retraction of the wiper blade assembly 2 by the second transmission member 32 are unaffected by the rotation of the first structural member 1. In other words, the rotation of the first structural member 1 and the extension and retraction of the wiper blade assembly 2 are independent of each other. This allows the motion cycle of the first structural member 1 to be adapted to the motion cycle of the wiper blade assembly 2 by specifically controlling the first and second driving members. This eliminates the need for a transmission relationship between the first structural member 1 and the wiper blade assembly 2, thereby simplifying the wiper structure.

[0068] In the embodiment described herein, the first structural member 1 optionally has two preset positions within its rotational range. Within a single reciprocating rotation of the first structural member 1, the wiper blade assembly 2 extends and retracts four times relative to the first structural member 1. Specifically, for the front window of a conventional family sedan, the preset position may be when the first structural member 1 swings to a position corresponding to the corner of the windshield. A windshield wiper is typically located at the lower center of the front window and can swing back and forth relative to the front window. In this case, within a single reciprocating rotation of the first structural member 1, the first structural member 1 has two preset positions. When the first structural member 1 swings unidirectionally, the wiper blade assembly 2 correspondingly extends and retracts twice. When the first structural member 1 swings back, the wiper blade assembly 2 similarly extends and retracts twice. In other words, within a single reciprocating rotation of the first structural member 1, the wiper blade assembly 2 extends and retracts four times relative to the first structural member 1.

[0069] In other embodiments of the present application, the first structural member 1 may also have a preset position within its rotational stroke. In this case, within the cycle of one reciprocating rotation of the first structural member 1, the wiper assembly 2 extends twice and retracts twice relative to the first structural member 1. Specifically, the wiper can be arranged at a corner of the front window. For ease of distinction, this corner is referred to as the first corner, and the corner arranged diagonally opposite the first corner is referred to as the second corner. In this case, within the cycle of one reciprocating swing of the first structural member 1, the first structural member 1 has a preset position. This preset position is the position of the first structural member 1 when it is facing the second corner along its own extension direction. When the first structural member 1 swings unidirectionally, the wiper assembly 2 correspondingly extends once and retracts once. When the first structural member 1 swings back and forth, the wiper assembly 2 also extends once and retracts once. That is, within the cycle of one reciprocating rotation of the first structural member 1, the wiper assembly 2 extends twice and retracts twice relative to the first structural member 1.

[0070] The wiper blade assembly 2 of the embodiment of the present application can extend and retract to correspond to the corners of the vehicle window during the swinging of the first structural member 1, thereby accurately and reliably scraping rain, snow, dust, and other debris at the corners. During actual driving, this facilitates the driver's observation of road conditions from the corners, thereby increasing the driver's effective field of view and improving the driver's safety while driving the vehicle.

[0071] refer to Figure 1In some embodiments of the present application, the wiper assembly 2 includes a second structural member 21 and a scraper rod 22. The second structural member 21 can be a rod that also extends along the first direction X and is movably mounted within the groove 1a of the first structural member 1. The scraper rod 22 is also a rod, one end of which is rotatably connected to the second structural member 21 and the other end is used to mount the scraper blade. During use, the second structural member 21 and the scraper rod 22 can rotate relative to each other, allowing the scraper blade on the scraper rod 22 to be as close to the vehicle window as possible, thereby ensuring the cleaning efficiency and reliability of the scraper assembly 2 when scraping the vehicle window.

[0072] In some embodiments of the present application, the wiper blade assembly 2 includes an elastic member, the ends of which are connected to the second structural member 21 and the scraper rod 22. The elastic member can be a torsion spring or a tension spring. When the elastic member is a torsion spring, the elastic member can be mounted on the rotating shaft connecting the second structural member 21 and the scraper rod 22. One end of the torsion spring contacts the second structural member 21, and the other end contacts the scraper rod 22. Under the elastic force of the torsion spring, the scraper rod 22 always tends to move toward the vehicle window, thereby allowing the scraper blade mounted on the scraper rod 22 to press against the vehicle window surface. When the elastic member is a tension spring, the ends of the elastic member can be connected to the surfaces of the second structural member 21 and the scraper rod 22, respectively. Under the elastic force of the tension spring, the scraper rod 22 always tends to move toward the vehicle window, thereby allowing the scraper blade mounted on the scraper rod 22 to press against the vehicle window surface. This further ensures the cleaning efficiency and reliability of the wiper blade assembly 2 when scraping the vehicle window.

[0073] In some embodiments of the present application, the transmission assembly 3 may further include a drive belt. The first transmission member 31 and the second transmission member 32 are both pulleys, and the drive belt is connected to both the first transmission member 31 and the second transmission member 32. The use of a belt drive between the first and second transmission members 31 and 32 can improve the transmission efficiency between the first and second transmission members 31 and 32, while also increasing the accuracy of the transmission ratio between them. This allows for more precise extension and retraction of the scraper assembly 2, more accurately matching the swinging motion of the first structural member 1. In the embodiments described herein, the outer diameter of the pulley of the first transmission member 31 is preferably larger than that of the pulley of the second transmission member 32. The drive belt may be a synchronous belt, a V-belt, a flat belt, or the like. The cylindrical surfaces of the first and second transmission members 31 and 32 are provided with grooves adapted to the drive belts, within which the drive belts are positioned. The first transmission member 31 rotates the drive belts through friction, while the drive belts also rotate the second transmission member 32 through friction.

[0074] When the first and second transmission members 31, 32 utilize a belt drive, the transmission assembly 3 may further include a planetary carrier 33. The first transmission member 31 is rotatably mounted on the rotating shaft 12, while the second transmission member 32 is rotatably mounted on the planetary carrier 33. The planetary carrier 33 is fixedly connected to the rotating shaft 12. The first transmission member 31 and the first structural member 1 are driven by different power sources. Driven by the transmission belt, the rotation of the first transmission member 31 drives the rotation of the second transmission member 32, thereby ensuring the transmission ratio accuracy and transmission reliability between the first and second transmission members 31, 32.

[0075] In some embodiments of the present application, the transmission assembly 3 may further include a transmission chain, and both the first transmission member 31 and the second transmission member 32 are sprockets, and the transmission chain is connected to both the first transmission member 31 and the second transmission member 32. The first transmission member 31 and the second transmission member 32 use a chain drive to achieve transmission, which can improve the transmission efficiency between the first transmission member 31 and the second transmission member 32, and also improve the transmission ratio accuracy between the two. This can make the extension and retraction of the scraper assembly 2 more precise and more accurately adapt to the swinging movement of the first structural member 1. In the embodiment described in the present application, the outer diameter of the wheel of the first transmission member 31 is preferably larger than the wheel of the second transmission member 32. The wheel sides of the first transmission member 31 and the second transmission member 32 have gear teeth that are adapted to the transmission chain, and the gear teeth are inserted into the chain gap of the transmission chain. The rotation of the first transmission member 31 drives the transmission chain to rotate, and the transmission chain synchronously drives the second transmission member 32 to rotate.

[0076] When the first and second transmission members 31, 32 utilize a chain drive, the transmission assembly 3 may further include a planetary carrier 33. The first transmission member 31 is rotatably mounted on the rotating shaft 12, while the second transmission member 32 is rotatably mounted on the planetary carrier 33. The planetary carrier 33 is fixedly connected to the rotating shaft 12. The first transmission member 31 and the first structural member 1 are driven by different power sources. Driven by the transmission chain, the rotation of the first transmission member 31 drives the rotation of the second transmission member 32, thereby ensuring the transmission ratio accuracy and transmission reliability between the first and second transmission members 31, 32.

[0077] In the embodiment described herein, the wiper blade assembly 2 is optionally slidably connected to the groove 1a. When the first structural member 1 rotates toward a predetermined position, the wiper blade assembly 2 slides and extends relative to the first structural member 1. When the first structural member 1 rotates away from the predetermined position, the wiper blade assembly 2 slides and retracts relative to the first structural member 1. This ensures that the wiper blade assembly 2 remains in close contact with the vehicle window glass during its extension and retraction process, thereby ensuring effective window cleaning by the wiper blade assembly 2.

[0078] In a second aspect, an embodiment of the present invention provides a vehicle. The vehicle in the embodiment of the present invention can be an engineering vehicle, a commercial vehicle, a civilian vehicle, etc. The vehicle in the embodiment of the present invention employs the wiper described in the first aspect to improve the driver's effective field of view while driving the vehicle.

[0079] refer to Figure 1 The wiper specifically includes a first structural component 1, a wiper blade assembly 2 and a transmission assembly 3.

[0080] The first structural member 1 is the primary component of the wiper blade. During use, driven by a power source such as an electric motor, hydraulic motor, or pneumatic motor, the first structural member 1 can swing about a central point located on the vehicle to drive the wiper blade assembly 2 to wipe the window glass. In this embodiment, the first structural member 1 can be in the form of a straight rod extending in a first direction X and is provided with a groove 1a extending in the first direction X.

[0081] refer to Figure 2 The wiper blade assembly 2 is the part of the wiper used to wipe the car window. The wiper blade assembly 2 is movably connected to the groove 1a and can move along the groove 1a under the action of external force. Specifically, the wiper blade assembly 2 can move along the groove 1a toward the outside of the first structural member 1, or can move along the groove 1a toward the inside of the first structural member 1. The specific connection method between the wiper blade assembly 2 and the groove 1a can be determined according to actual needs. For example, the wiper blade assembly 2 is provided with a guide block, which is inserted into the groove 1a to achieve a sliding connection between the wiper blade assembly and the groove 1a. Alternatively, the wiper blade assembly 2 can be provided with a guide column, and a guide groove is provided on the groove 1a, and the guide column is inserted into the guide groove, so that the wiper blade assembly 2 can slide in the groove 1a along the first direction X, and at the same time, the wiper blade assembly 2 can rotate relative to the first structural member 1 around the axial direction of the guide column.

[0082] The transmission assembly 3 is the component that provides the force to the scraper assembly 2 and is in transmission connection with the scraper assembly 2. The first structural member 1 has one, two, or even more preset positions within its rotational range. When the first structural member 1 rotates closer to the preset position, the scraper assembly 2 slides and extends relative to the first structural member 1. When the first structural member 1 rotates away from the preset position, the scraper assembly 2 slides and retracts relative to the first structural member 1.

[0083] The preset position of the first structural member 1 is typically set to correspond to a difficult-to-reach area on the vehicle window. Specifically, for the front window of a conventional family sedan, the preset position may be where the first structural member 1 swings to a position corresponding to the corner of the windshield of the front window. A wiper blade is typically located at the lower center of the front window and can swing back and forth relative to the front window. Within the stroke of one reciprocating swing of the first structural member 1, the first structural member 1 has two preset positions. From the driver's perspective inside the vehicle, when the first structural member 1 swings clockwise toward the first preset position, the wiper blade assembly 2 extends as the first structural member 1 swings. When the first structural member 1 is in the first preset position, its extension direction coincides with the corner of the front window, and the wiper blade assembly 2 extends to its maximum position. When the first structural member 1 swings away from the first preset position, the wiper blade assembly 2 retracts as the first structural member 1 swings away. As the first structural member continues to swing, it gradually approaches the second preset position, at which point the wiper blade assembly 2 re-extends as the first structural member 1 swings back. When the first structural member 1 is in the second preset position, the extension direction of the first structural member 1 coincides with the other corner of the front window, and the wiper assembly 2 re-extends to its furthest position. As the first structural member 1 swings away from the second preset position, the wiper assembly 2 retracts with the swing of the first structural member 1. The movement of the wiper assembly 2 when the first structural member 1 swings in the reverse direction, i.e., counterclockwise, can be seen above and will not be further described here.

[0084] The wiper blade assembly 2 of the embodiment of the present application can extend and retract to correspond to the corners of the vehicle window during the swinging of the first structural member 1, thereby accurately and reliably scraping rain, snow, dust, and other debris at the corners. During actual driving, this facilitates the driver's observation of road conditions from the corners, thereby increasing the driver's effective field of view and improving the driver's safety while driving the vehicle.

[0085] refer to Figure 2 In some embodiments of the present application, the transmission assembly 3 may optionally include a first transmission member 31 and a second transmission member 32. The first transmission member 31 is connected to the first structural member 1, the second transmission member 32 is in transmission connection with the first transmission member 31, and the second transmission member 32 is in transmission connection with the scraper assembly 2. When the first structural member 1 rotates, the first structural member 1 can drive the first transmission member 31 to move due to the connection between the first structural member 1 and the first transmission member 31. The first transmission member 31 can transmit the motion to the second transmission member 32, and then the second transmission member 32 drives the scraper assembly 2 to move along the groove 1a.

[0086] refer to Figure 2In this embodiment of the present application, a transmission relationship exists between the first structural member 1, the first transmission member 31, and the second transmission member 32. By specifically configuring the transmission relationship between the first structural member 1, the first transmission member 31, and the second transmission member 32, the period of movement of the scraper assembly 2 along the groove 1a can be adapted to the period of swinging of the first structural member 1. Specifically, the first transmission member 31 can be in transmission connection with a power source on the vehicle body. This power source can be an electric motor, a hydraulic motor, a pneumatic motor, or the like installed on the vehicle. Driven by the power source, the first structural member 1 swings according to a predetermined period, driving the first transmission member 31 to also move according to a predetermined period. The transmission ratio between the first transmission member 31 and the second transmission member 32 can be set according to actual needs. Under the fixed transmission ratio of the first transmission member 31 and the second transmission member 32, the period of movement of the scraper assembly 2 along the groove 1a can be adapted to the period of swinging of the first structural member 1. That is, within a single reciprocating swing stroke of the first structural member 1, the scraper assembly 2 extends a corresponding number of times based on the number of preset positions passed by the first structural member 1. For example, the swing center of the first structural member 1 is set at the lower end of the vehicle window, and the preset position of the first structural member 1 is the position when the first structural member 1 is directly opposite the two upper corners of the vehicle window along its own extension direction. When the first structural member 1 swings from one extreme position to the other, it can pass through two preset positions, at which time the wiper assembly 2 can extend and retract twice along the groove 1a. When the first structural member 1 swings back from the extreme position to the initial extreme position, it will pass through the two preset positions again, at which time the wiper assembly 2 can extend and retract twice along the groove 1a again.

[0087] The wiper described in the embodiment of the present application can cause the wiper blade assembly 2 to extend and retract in response to the corners of the vehicle window during the swinging of the first structural member 1, thereby accurately and reliably scraping rain, snow, dust, and other debris from these corners. During actual driving, this facilitates the driver's observation of road conditions from the corners, thereby increasing the driver's effective field of view and improving the driver's safety while riding the vehicle. Furthermore, because the first transmission member 31 is connected to the first structural member 1, the movement of the first structural member 1 can also drive the movement of the first transmission member 31. This allows a single drive source to simultaneously drive the swinging of the first transmission member 31 and the movement of the first structural member 1. Driven by the first and second transmission members 31 and 32, this drive source can simultaneously drive the extension and retraction of the wiper blade assembly 2. Compared to a drive method that utilizes separate power sources to separately drive the swinging of the first structural member 1 and the extension and retraction of the wiper blade assembly 2, this method reduces the number of power sources required to swing and retract the wiper on the vehicle, thereby reducing the cost of the wiper and conserving space on the vehicle.

[0088] refer to Figure 3In some embodiments of the present application, the transmission assembly 3 includes a planetary gear mechanism. Specifically, the first transmission member 31 and the second transmission member 32 are both gears. The transmission assembly 3 also includes a planetary carrier 33 and a ring gear 34. The first transmission member 31, the second transmission member 32, the planetary carrier 33, and the ring gear 34 together constitute a planetary gear mechanism. The fact that the transmission assembly 3 includes a planetary gear mechanism means that the first transmission member 31 and the second transmission member 32 achieve transmission through meshing. The use of gears for the first and second transmission members 31, 32 improves the transmission efficiency between the first and second transmission members 31, 32, and ensures reliable transmission. Furthermore, the use of gears for the first and second transmission members 31, 32 improves the transmission ratio accuracy between the two, making the extension and retraction of the scraper assembly 2 more precise and enabling more accurate adaptation to the swinging motion of the first structural member 1. In the embodiments described herein, the number of teeth on the first transmission member 31 is preferably greater than that on the second transmission member 32. The transmission ratio between the two is set according to actual needs and will not be further described here.

[0089] In some embodiments of the present application, the planet carrier 33 and the first transmission member 31 can optionally rotate relative to each other about the axis of the first transmission member 31. The planet carrier 33 is also rotationally connected to the second transmission member 32. The provision of the planet carrier 33 provides a mounting location for the second transmission member 32 and also helps ensure stable engagement between the first and second transmission members 31, 32. In other words, the provision of the planet carrier 33 prevents disengagement between the first and second transmission members 31, 32, thereby helping to ensure the transmission ratio accuracy and transmission reliability of the first and second transmission members 31, 32.

[0090] The ring gear 34 is an annular structure, and the inner ring hole of the annular structure has teeth extending inward. The ring gear 34 can be fixedly connected to the vehicle body by fasteners, welding, bonding, etc. During use, the first transmission member 31 and the planetary carrier 33 can be mounted on the same shaft, and the first transmission member 31 and the planetary carrier 33 can rotate relative to each other. The second transmission member 32 is rotatably mounted on the planetary carrier 33, and the second transmission member 32 remains engaged with the first transmission member 31. The first transmission member 31 is arranged concentrically with the ring gear 34, the ring gear 34 is internally engaged with the second transmission member 32, and the second transmission member 32 is externally engaged with the first transmission member 31, so as to form a planetary gear train.

[0091] During wiper operation, the first structural member 1 swings under the influence of an external power source, driving the first transmission member 31 to rotate. The second transmission member 32 rotates along with the rotation of the first transmission member 31 and orbits around the first transmission member 31 along the ring gear 34. The planetary carrier 33 rotates about the axis of the first transmission member 31 along with the orbit of the second transmission member 32. This ensures the transmission ratio accuracy and transmission reliability between the first and second transmission members 31, 32, and thus the transmission reliability of the transmission assembly 3, facilitating accurate matching of the swing period of the first structural member 1 with the extension and retraction period of the wiper blade assembly 2.

[0092] refer to Figure 3 In some embodiments of the present application, the transmission assembly 3 further includes a first connecting rod 35 and a second connecting rod 36. Both the first connecting rod 35 and the second connecting rod 36 preferably employ a straight rod structure. The first end of the first connecting rod 35 is fixedly connected to the second transmission member 32, meaning that rotation of the second transmission member 32 drives the first connecting rod 35 to rotate about the axis of the second transmission member 32. The first end of the second connecting rod 36 is rotationally connected to the second end of the first connecting rod 35, and the second end of the second connecting rod 36 is rotationally connected to the wiper assembly 2. In other words, the first connecting rod 35, the second connecting rod 36, the first structural member 1, and the wiper assembly 2 form a slider-crank mechanism. The first connecting rod 35 is the crank in the slider-crank mechanism and completes a full rotation with the second transmission member 32. The second connecting rod 36 is the connecting rod connecting the crank and the slider in the slider-crank mechanism. The first structural member 1 is the structure in the slider-crank mechanism that guides the sliding direction of the slider, and the wiper assembly 2 is the crank in the slider-crank mechanism. The arrangement of the first connecting rod 35 and the second connecting rod 36 converts the rotation of the second transmission member 32 into linear motion and transmits it to the wiper blade assembly 2. This simple structure and precise and reliable transmission effect can simplify the wiper structure while effectively improving the reliability and accuracy of the extension and retraction of the wiper blade assembly 2, thereby ensuring that the extension and retraction of the wiper blade assembly 2 is well matched with the swinging movement of the first structural member 1.

[0093] refer to Figure 2 In some embodiments of the present application, the first structural member 1 includes a rotating shaft 12 and a swinging member 11. The swinging member 11 extends along the first direction X, and the groove 1a is provided on the surface of the swinging member 11 and extends in the same direction as the swinging member 11. Figure 4 , Figure 5, the rotating shaft 12 extends along the second direction Y, that is, the axial direction of the rotating shaft 12 is in the same direction as the second direction Y. The second direction Y is a direction intersecting with the first direction X, and the first direction X and the second direction Y can be generally intersecting or orthogonal. In the embodiment described in the present application, preferably, the first direction X is orthogonal to the second direction Y. The first end of the rotating shaft 12 is rotatably connected to the vehicle body. Specifically, the first end of the rotating shaft 12 can be inserted into the mounting hole of the vehicle body, or rotatably connected to the vehicle body through a bearing. The second end of the rotating shaft 12 is connected to the swinging member 11. In the embodiment described in the present application, the rotating shaft 12 and the swinging member 11 can be integrally formed, or they can be fixedly connected by welding, interference connection, bonding, etc. Reference Figure 6 , the first end of the rotating shaft 12 can be fixedly connected to the output shaft of the motor 5 on the vehicle body by means of riveting, welding, coupling connection, fastener connection, etc., so as to drive the swinging member 11 to swing. In the embodiment of the present application, both the swinging member 11 and the rotating shaft 12 are provided with a conical surface 1b. During installation, the conical surface 1b of the swinging member 11 is sleeved on the conical surface 1b of the rotating shaft 12. The second end of the rotating shaft 12 has an external thread 121. After the swinging member 11 is installed in place, the nut 4 can be screwed onto the external thread 121 of the rotating shaft 12 so that the swinging member 11 can be pressed and fixed on the rotating shaft 12 by using the nut 4. Under the action of the rotating shaft 12, the swinging member 11 is more easily rotated and installed on the vehicle body. At the same time, the rotating shaft 12 can ensure the swinging accuracy of the swinging member 11, which is more conducive to adapting the swinging action of the first structural member 1 to the telescopic action of the scraper assembly 2.

[0094] refer to Figure 4 In some embodiments of the present application, the first transmission member 31 is fixedly connected to the rotating shaft 12 and is concentrically arranged. Specifically, the first transmission member 31 can be fixedly connected to the rotating shaft 12 by interference fit, welding, bonding, etc. In this way, the rotating shaft 12 can simultaneously drive the first transmission member 31 and the swinging member 11 to rotate, so that the first transmission member 31 and the swinging member 11 can be driven by one power source. This is conducive to reducing the number of power sources required to drive the wiper, and can simplify the structure of the vehicle and reduce the material cost of the vehicle. At the same time, since the first transmission member 31 and the swinging member 11 are driven by the same power source, it is easier to keep the power obtained by the first transmission member 31 and the first structural member 1 the same, and it is more conducive to adapting the telescopic action of the wiper assembly 2 to the swinging action of the first structural member 1 by specifically setting the transmission ratio of the first transmission member 31 and the second transmission member 32.

[0095] In some embodiments of the present application, the first structural member 1 and the transmission assembly 3 may optionally be transmission-connected to different power sources of the vehicle body. Specifically, the wiper includes a first drive member and a second drive member. The first structural member 1 is transmission-connected to the first drive member, which may be a torque-outputting drive member such as an electric motor, a hydraulic motor, or a pneumatic motor. The first structural member 1 may be directly fixedly connected to the driving end of the first drive member to achieve transmission. Alternatively, the first drive member and the first structural member 1 may be transmission-connected via a transmission mechanism such as a gear set or a connecting rod mechanism.

[0096] The transmission assembly 3 includes a first transmission member 31 and a second transmission member 32. The first transmission member 31 is transmission-connected to the second drive member. The second drive member can be a drive member that outputs torque, such as an electric motor, a hydraulic motor, or a pneumatic motor. The first transmission member 31 can achieve transmission by being directly fixedly connected to the drive end of the second drive member, or the first transmission member 31 and the second drive member can also achieve transmission connection through a transmission mechanism such as a gear set or a connecting rod mechanism. The second transmission member 32 is transmission-connected to the scraper assembly 2. Specifically, the two can achieve transmission connection by being directly connected, or by being transmitted through a transmission mechanism such as a gear set or a connecting rod mechanism. The transmission connection method between the first transmission member 31 and the second transmission member 32 can be determined based on the specific selection of the first transmission member 31 and the second transmission member 32. For example, when the first transmission member 31 and the second transmission member 32 are both gears, the two can be transmitted by meshing. When the first transmission member 31 and the second transmission member 32 are connecting rods, the two can be transmitted by being hinged.

[0097] When the first driving member moves, the first structural member 1 can be driven by the first driving member to rotate closer to the preset position. During this process, the second driving member can drive the first transmission member 31 to move, the first transmission member 31 drives the second transmission member 32 to move, and the second transmission member 32 drives the scraper assembly 2 to slide and extend relative to the first structural member 1. When the first driving member drives the first structural member 1 to rotate away from the preset position, the second driving member drives the first transmission member 31 to move, the first transmission member 31 drives the second transmission member 32 to move, and the second transmission member 32 drives the scraper assembly 2 to slide and retract relative to the first structural member 1.

[0098] By specifically setting the motion parameters of the first drive member, the drive parameters of the second drive member, and the transmission ratio between the mechanisms, the period of movement of the wiper assembly 2 along the groove 1a can be adapted to the period of swinging of the first structural member 1. That is, within a single reciprocating swing stroke of the first structural member 1, the wiper assembly 2 extends a corresponding number of times based on the number of preset positions passed by the first structural member 1. For example, the swing center of the first structural member 1 is set at the lower end of the vehicle window, and the preset positions of the first structural member 1 are the positions when the first structural member 1 is facing the two corners above the vehicle window along its own extension direction. When the first structural member 1 swings from one extreme position to another, it can pass through two preset positions, the two corner positions above the vehicle window, at which time the wiper assembly 2 can complete two extensions and two retractions along the groove 1a. When the first structural member 1 swings back from the extreme position to the initial extreme position, it will pass through the two preset positions again, at which time the wiper assembly 2 can again complete two extensions and two retractions along the groove 1a.

[0099] The wiper described in the embodiment of the present application can extend and retract the wiper blade assembly 2 relative to the corners of the vehicle window during the swinging of the first structural member 1, thereby accurately and reliably scraping rain, snow, dust, and other debris from these corners. During actual driving, this facilitates the driver's observation of road conditions from the corners, thereby increasing the driver's effective field of view and improving the driver's safety while riding the vehicle. Furthermore, because the first transmission member 31 and the first structural member 1 are driven by different drive sources, the movement of the second transmission member 32 by the first transmission member 31 and the extension or retraction of the wiper blade assembly 2 by the second transmission member 32 are unaffected by the rotation of the first structural member 1. In other words, the rotation of the first structural member 1 and the extension and retraction of the wiper blade assembly 2 are independent of each other. This allows the motion cycle of the first structural member 1 to be adapted to the motion cycle of the wiper blade assembly 2 by specifically controlling the first and second driving members. This eliminates the need for a transmission relationship between the first structural member 1 and the wiper blade assembly 2, thereby simplifying the wiper structure.

[0100] In the embodiment described herein, the first structural member 1 optionally has two preset positions within its rotational range. Within a single reciprocating rotation of the first structural member 1, the wiper blade assembly 2 extends and retracts four times relative to the first structural member 1. Specifically, for the front window of a conventional family sedan, the preset position may be when the first structural member 1 swings to a position corresponding to the corner of the windshield. A windshield wiper is typically located at the lower center of the front window and can swing back and forth relative to the front window. In this case, within a single reciprocating rotation of the first structural member 1, the first structural member 1 has two preset positions. When the first structural member 1 swings unidirectionally, the wiper blade assembly 2 correspondingly extends and retracts twice. When the first structural member 1 swings back, the wiper blade assembly 2 similarly extends and retracts twice. In other words, within a single reciprocating rotation of the first structural member 1, the wiper blade assembly 2 extends and retracts four times relative to the first structural member 1.

[0101] In other embodiments of the present application, the first structural member 1 may also have a preset position within its rotational stroke. In this case, within the cycle of one reciprocating rotation of the first structural member 1, the wiper assembly 2 extends twice and retracts twice relative to the first structural member 1. Specifically, the wiper can be arranged at a corner of the front window. For ease of distinction, this corner is referred to as the first corner, and the corner arranged diagonally opposite the first corner is referred to as the second corner. In this case, within the cycle of one reciprocating swing of the first structural member 1, the first structural member 1 has a preset position. This preset position is the position of the first structural member 1 when it is facing the second corner along its own extension direction. When the first structural member 1 swings unidirectionally, the wiper assembly 2 correspondingly extends once and retracts once. When the first structural member 1 swings back and forth, the wiper assembly 2 also extends once and retracts once. That is, within the cycle of one reciprocating rotation of the first structural member 1, the wiper assembly 2 extends twice and retracts twice relative to the first structural member 1.

[0102] The wiper blade assembly 2 of the embodiment of the present application can extend and retract to correspond to the corners of the vehicle window during the swinging of the first structural member 1, thereby accurately and reliably scraping rain, snow, dust, and other debris at the corners. During actual driving, this facilitates the driver's observation of road conditions from the corners, thereby increasing the driver's effective field of view and improving the driver's safety while driving the vehicle.

[0103] refer to Figure 1In some embodiments of the present application, the wiper assembly 2 includes a second structural member 21 and a scraper rod 22. The second structural member 21 can be a rod that also extends along the first direction X and is movably mounted within the groove 1a of the first structural member 1. The scraper rod 22 is also a rod, one end of which is rotatably connected to the second structural member 21 and the other end is used to mount the scraper blade. During use, the second structural member 21 and the scraper rod 22 can rotate relative to each other, allowing the scraper blade on the scraper rod 22 to be as close to the vehicle window as possible, thereby ensuring the cleaning efficiency and reliability of the scraper assembly 2 when scraping the vehicle window.

[0104] In some embodiments of the present application, the wiper blade assembly 2 includes an elastic member, the ends of which are connected to the second structural member 21 and the scraper rod 22. The elastic member can be a torsion spring or a tension spring. When the elastic member is a torsion spring, the elastic member can be mounted on the rotating shaft connecting the second structural member 21 and the scraper rod 22. One end of the torsion spring contacts the second structural member 21, and the other end contacts the scraper rod 22. Under the elastic force of the torsion spring, the scraper rod 22 always tends to move toward the vehicle window, thereby allowing the scraper blade mounted on the scraper rod 22 to press against the vehicle window surface. When the elastic member is a tension spring, the ends of the elastic member can be connected to the surfaces of the second structural member 21 and the scraper rod 22, respectively. Under the elastic force of the tension spring, the scraper rod 22 always tends to move toward the vehicle window, thereby allowing the scraper blade mounted on the scraper rod 22 to press against the vehicle window surface. This further ensures the cleaning efficiency and reliability of the wiper blade assembly 2 when scraping the vehicle window.

[0105] In some embodiments of the present application, the transmission assembly 3 may further include a drive belt. The first transmission member 31 and the second transmission member 32 are both pulleys, and the drive belt is connected to both the first transmission member 31 and the second transmission member 32. The use of a belt drive between the first and second transmission members 31 and 32 can improve the transmission efficiency between the first and second transmission members 31 and 32, while also increasing the accuracy of the transmission ratio between them. This allows for more precise extension and retraction of the scraper assembly 2, more accurately matching the swinging motion of the first structural member 1. In the embodiments described herein, the outer diameter of the pulley of the first transmission member 31 is preferably larger than that of the pulley of the second transmission member 32. The drive belt may be a synchronous belt, a V-belt, a flat belt, or the like. The cylindrical surfaces of the first and second transmission members 31 and 32 are provided with grooves adapted to the drive belts, within which the drive belts are positioned. The first transmission member 31 rotates the drive belts through friction, while the drive belts also rotate the second transmission member 32 through friction.

[0106] When the first and second transmission members 31, 32 utilize a belt drive, the transmission assembly 3 may further include a planetary carrier 33. The first transmission member 31 is rotatably mounted on the rotating shaft 12, while the second transmission member 32 is rotatably mounted on the planetary carrier 33. The planetary carrier 33 is fixedly connected to the rotating shaft 12. The first transmission member 31 and the first structural member 1 are driven by different power sources. Driven by the transmission belt, the rotation of the first transmission member 31 drives the rotation of the second transmission member 32, thereby ensuring the transmission ratio accuracy and transmission reliability between the first and second transmission members 31, 32.

[0107] In some embodiments of the present application, the transmission assembly 3 may further include a transmission chain, and both the first transmission member 31 and the second transmission member 32 are sprockets, and the transmission chain is connected to both the first transmission member 31 and the second transmission member 32. The first transmission member 31 and the second transmission member 32 use a chain drive to achieve transmission, which can improve the transmission efficiency between the first transmission member 31 and the second transmission member 32, and also improve the transmission ratio accuracy between the two. This can make the extension and retraction of the scraper assembly 2 more precise and more accurately adapt to the swinging movement of the first structural member 1. In the embodiment described in the present application, the outer diameter of the wheel of the first transmission member 31 is preferably larger than the wheel of the second transmission member 32. The wheel sides of the first transmission member 31 and the second transmission member 32 have gear teeth that are adapted to the transmission chain, and the gear teeth are inserted into the chain gap of the transmission chain. The rotation of the first transmission member 31 drives the transmission chain to rotate, and the transmission chain synchronously drives the second transmission member 32 to rotate.

[0108] When the first and second transmission members 31, 32 utilize a chain drive, the transmission assembly 3 may further include a planetary carrier 33. The first transmission member 31 is rotatably mounted on the rotating shaft 12, while the second transmission member 32 is rotatably mounted on the planetary carrier 33. The planetary carrier 33 is fixedly connected to the rotating shaft 12. The first transmission member 31 and the first structural member 1 are driven by different power sources. Driven by the transmission chain, the rotation of the first transmission member 31 drives the rotation of the second transmission member 32, thereby ensuring the transmission ratio accuracy and transmission reliability between the first and second transmission members 31, 32.

[0109] In the embodiment described herein, the wiper blade assembly 2 is optionally slidably connected to the groove 1a. When the first structural member 1 rotates toward a predetermined position, the wiper blade assembly 2 slides and extends relative to the first structural member 1. When the first structural member 1 rotates away from the predetermined position, the wiper blade assembly 2 slides and retracts relative to the first structural member 1. This ensures that the wiper blade assembly 2 remains in close contact with the vehicle window glass during its extension and retraction process, thereby ensuring effective window cleaning by the wiper blade assembly 2.

[0110] It should be noted that, in this document, relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation, and do not necessarily require or imply the existence of any such actual relationship or order between these entities or operations. Moreover, the terms "comprises," "comprising," or any other variants thereof are intended to cover non-exclusive inclusion, so that a process, method, article, or device comprising a series of elements includes not only those elements, but also other elements not explicitly listed, or elements inherent to such process, method, article, or device. In the absence of further limitations, an element defined by the phrase "comprising a ..." does not exclude the presence of other identical elements in the process, method, article, or device comprising the element.

[0111] Each embodiment in this specification is described in a related manner. Similar portions between embodiments can be referenced to each other. Each embodiment focuses on the differences from other embodiments. The vehicle embodiment is generally similar to the wiper embodiment, so the description is relatively simple. For related portions, refer to the description of the method embodiment.

[0112] The above description is only a preferred embodiment of the present invention and is not intended to limit the scope of protection of the present invention. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present invention are included in the scope of protection of the present invention.

Claims

1. A wiper blade, characterized in that: include: A first structural member (1), one end of which is suitable for being rotatably connected to the vehicle body, and the first structural member (1) has a groove (1a) extending along a first direction (X); a scraper assembly (2), the scraper assembly (2) being connected to the groove (1a); A transmission assembly (3), wherein the transmission assembly (3) is in transmission connection with the scraper assembly (2), When the first structural member (1) rotates close to a preset position, the scraper assembly (2) extends relative to the first structural member (1); when the first structural member (1) rotates away from the preset position, the scraper assembly (2) retracts relative to the first structural member (1).

2. The wiper blade according to claim 1, characterized in that The transmission assembly (3) comprises a first transmission member (31) and a second transmission member (32); the first transmission member (31) is connected to the first structural member (1), the second transmission member (32) is transmission-connected to the scraper assembly (2), and the first transmission member (31) is transmission-connected to the second transmission member (32); The first structural member (1) rotates and drives the first transmission member (31) to move, the first transmission member (31) moves and drives the second transmission member (32) to move, and the second moving member (32) drives the scraper assembly (2) to extend or retract relative to the first structural member (1).

3. The wiper blade according to claim 2, characterized in that: The transmission assembly (3) includes a planet carrier (33) and a ring gear (34); The first transmission member (31) and the second transmission member (32) are both gears, and the first transmission member (31), the second transmission member (32), the planet carrier (33), and the ring gear (34) constitute a planetary gear mechanism; The first structural member (1) rotates close to the preset position and drives the first transmission member (31) to drive the second transmission member (32) to move, and the second transmission member (32) drives the scraper assembly (2) to extend relative to the first structural member (1); the first structural member (1) rotates away from the preset position and drives the first transmission member (31) to drive the second transmission member (32) to move, and the second transmission member (32) drives the scraper assembly (2) to retract relative to the first structural member (1).

4. The wiper blade according to claim 3, characterized in that: The gear ring (34) is suitable for being fixedly connected to the vehicle body; the first transmission member (31) is concentrically arranged with the gear ring (34), and the second transmission member (32) is simultaneously engaged with the gear ring (34) and the first transmission member (31) for transmission; The planet carrier (33) and the first transmission member (31) are relatively rotatable around the axis of the first transmission member (31), and the second transmission member (32) is rotatably connected to the planet carrier (33).

5. The wiper blade according to claim 3, characterized in that: The transmission assembly (3) further includes a first connecting rod (35) and a second connecting rod (36); The first end of the first connecting rod (35) is fixedly connected to the second transmission member (32), the first end of the second connecting rod (36) is rotatably connected to the second end of the first connecting rod (35), and the second end of the second connecting rod (36) is rotatably connected to the scraper assembly (2).

6. The wiper blade according to claim 3, characterized in that: The first structural member (1) comprises a swinging member (11) and a rotating shaft (12); the swinging member (11) extends along the first direction (X), and the groove (1a) is arranged on the surface of the swinging member (11); the rotating shaft (12) extends along the second direction (Y), the first end of the rotating shaft (12) is suitable for being rotatably connected to the vehicle body, and the second end of the rotating shaft (12) is fixedly connected to the swinging member (11); the second direction (Y) intersects with the first direction (X).

7. The wiper blade according to claim 6, characterized in that: The first transmission member (31) is fixedly connected to the rotating shaft (12) and is concentrically arranged.

8. The wiper blade according to claim 1, wherein: The wiper includes a first driving member and a second driving member; The first structural member (1) is in transmission connection with the first driving member; the transmission assembly (3) comprises a first transmission member (31) and a second transmission member (32), the first transmission member (31) and the second transmission member (32) being in transmission connection; the first driving member is in transmission connection with the first structural member (1), the second transmission member (32) is in transmission connection with the scraper assembly (2), and the first transmission member (31) is in transmission connection with the second driving member; When the first driving member drives the first structural member (1) to rotate close to the preset position, the second driving member drives the first transmission member (31) to move, the first transmission member (31) drives the second transmission member (32) to move, and the second transmission member (32) drives the scraper assembly (2) to extend relative to the first structural member (1); when the first driving member drives the first structural member (1) to rotate away from the preset position, the second driving member drives the first transmission member (31) to move, the first transmission member (31) drives the second transmission member (32) to move, and the second transmission member (32) drives the scraper assembly (2) to retract relative to the first structural member (1).

9. The wiper blade according to any one of claims 1 to 8, characterized in that: The first structural member (1) has two preset positions within the rotation stroke, and within a cycle in which the first structural member (1) completes one reciprocating rotation, the scraper assembly (2) extends and retracts four times relative to the first structural member (1).

10. The wiper blade according to any one of claims 1 to 8, characterized in that: The scraper assembly (2) comprises a second structural member (21) and a scraper rod (22), wherein the second structural member (21) is connected to the groove (1a), and the scraper rod (22) is rotatably connected to the second structural member (21) and is suitable for mounting the scraper.

11. The wiper blade according to claim 10, characterized in that: The scraper assembly (2) comprises an elastic member, the two ends of which are respectively connected to the second structural member (21) and the scraper rod (22); the elastic member is suitable for pressing the scraper rod (22) toward the vehicle window surface.

12. The wiper blade according to claim 8, characterized in that The transmission assembly (3) comprises a transmission belt, and the first transmission member (31) and the second transmission member (32) are both pulleys; the transmission belt is connected to the first transmission member (31) and the second transmission member (32) at the same time.

13. The wiper blade according to claim 8, characterized in that The transmission assembly (3) comprises a transmission chain, wherein the first transmission member (31) and the second transmission member (32) are both sprockets; and the transmission chain is connected to both the first transmission member (31) and the second transmission member (32).

14. The wiper blade according to any one of claims 1 to 8, characterized in that: The scraper assembly (2) is slidably connected to the groove (1a); when the first structural member (1) rotates close to the preset position, the scraper assembly (2) slides out relative to the first structural member (1); when the first structural member (1) rotates away from the preset position, the scraper assembly (2) slides back relative to the first structural member (1).

15. A vehicle, characterized in that: The wiper comprises the wiper blade according to any one of claims 1 to 14.

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