Windscreen wiper device and vehicle

Abstract

The utility model provides a windscreen wiper device and a vehicle. The windscreen wiper device comprises a connecting rod assembly, a windscreen wiper, a motor assembly and a transmission assembly. The connecting rod assembly is arranged on a vehicle body. The connecting rod assembly comprises a crank and a rocker. The crank can rotate to drive the rocker to swing. The windshield wiper is connected with the rocker. The motor assembly comprises an output shaft. The transmission assembly is detachably connected with the output shaft and connected with the crank. The output shaft drives the crank to rotate through the transmission assembly, and the crank drives the windshield wiper to swing through the rocker. According to the windscreen wiper device, on one hand, the output shaft drives the crank to rotate through the transmission assembly, the crank drives the windscreen wiper to swing through the rocker, and therefore the windscreen wiper function is achieved, on the other hand, the transmission assembly is detachably connected with the output shaft and connected with the crank, and the connecting rod assembly and the transmission assembly are connected into a whole; and the motor can be separated from the output shaft of the motor, so that the universal development is realized, and the design cost and the maintenance cost are reduced.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of automobile accessories, in particular to a wiper device and a vehicle. BACKGROUND

[0002] In the related art, most of the motor assembly and the connecting rod assembly of the wiper device are arranged in the front engine compartment of the vehicle. Due to the complex motion relationship between the motor assembly and the connecting rod assembly in the wiper device, the motion angle and the motion distance are required to be high, so the wiper device is usually designed as an integral whole which cannot be disassembled, resulting in the need to replace the entire wiper device during subsequent maintenance, thereby increasing the maintenance cost. CONTENT OF THE UTILITY MODEL

[0003] Therefore, the embodiments of the present application aim to provide a wiper device and a vehicle to solve the problem of high maintenance cost of the wiper device.

[0004] To achieve the above-mentioned purpose, one aspect of the embodiments of the present application provides a wiper device, comprising:

[0005] a connecting rod assembly, the connecting rod assembly is arranged on the vehicle body, the connecting rod assembly comprises a crank and a rocker, the crank can drive the rocker to swing by rotating;

[0006] a wiper, the wiper is connected with the rocker;

[0007] a motor assembly, the motor assembly comprises an output shaft;

[0008] a transmission assembly, the transmission assembly is detachably connected with the output shaft and connected with the crank; the output shaft drives the crank to rotate through the transmission assembly, and the crank drives the wiper to swing through the rocker.

[0009] In some embodiments, the transmission assembly comprises a transmission member, the transmission member is connected with the crank, an internal connection channel is formed in the transmission member, at least part of the connection channel is sleeved on the output shaft and is in spline connection with the output shaft.

[0010] In some embodiments, the transmission assembly comprises a bearing and a mounting member, the transmission member is a shaft sleeve, the inner ring of the bearing is connected with the outer wall of the shaft sleeve, the outer ring of the bearing is connected with the mounting member, and the mounting member is detachably connected with the shell of the motor assembly to limit the axial position of the shaft sleeve on the output shaft.

[0011] In some embodiments, the mounting member has a receiving cavity, a first opening and a second opening, the first opening and the second opening are respectively arranged at two ends of the mounting member along a first direction, the bearing is arranged in the receiving cavity through the first opening, and part of the shaft sleeve extends out of the receiving cavity through the second opening and is connected with the crank, the shaft sleeve arranged in the receiving cavity is connected with the inner ring of the bearing, and the first direction is parallel to the axial direction of the output shaft.

[0012] In some embodiments, an outer wall of one end of the receiving cavity extends in a direction away from the output shaft along the radial direction of the output shaft to form a limiting portion, and the limiting portion abuts against an end surface of the inner ring of the bearing facing the first opening.

[0013] In some embodiments, the wall thickness of the shaft sleeve is not less than 3 mm.

[0014] In some embodiments, the wiper device further comprises a bracket connected with the vehicle body of the vehicle, the bracket is detachably connected with the motor assembly and the mounting member respectively, and the mounting member is clamped between the bracket and the motor assembly.

[0015] In some embodiments, the motor assembly comprises a housing, the housing has a third opening, the output shaft extends out of the housing through the third opening, the housing on the periphery of the third opening is recessed to form a sink, at least part of the transmission assembly is arranged in the sink, and the mounting surface of the bracket is attached to the housing.

[0016] In some embodiments, the transmission assembly comprises a transmission member, the transmission member is connected with the crank, one of the output shaft and the transmission member is provided with a protruding portion, and the other is provided with a groove, the protruding portion and the groove are matched to limit the output shaft and the transmission member in the circumferential direction of the output shaft, the transmission member can be detachably connected with the output shaft in the axial direction of the output shaft, and the output shaft drives the crank to rotate around the central axis of the output shaft through the transmission member.

[0017] In some embodiments, one of the end surface of the output shaft and the end surface of the transmission member protrudes in the axial direction to form the protruding portion, and the other is recessed in the axial direction to form the groove.

[0018] In some embodiments, the transmission assembly comprises a transmission member, the output shaft comprises a first gear and a first shaft body connected with the first gear, the transmission member comprises a second shaft body and a second gear, one end of the second shaft body is connected with the second gear, and the other end is connected with the crank, and the output shaft is driven to rotate around the central axis of the second shaft body through the meshing transmission of the first gear and the second gear to drive the crank.

[0019] Another aspect of the embodiments of the present application provides a vehicle, which comprises a vehicle body and the wiper device according to any one of the above.

[0020] The wiper device provided by the embodiments of the present application has the following advantages. On the one hand, the output shaft of the motor assembly drives the crank of the connecting rod assembly to rotate through the transmission assembly, and the output shaft and the transmission assembly are circumferentially limited, so that the output shaft can drive the transmission assembly to rotate synchronously, and the transmission assembly is fixedly connected with the crank, so that the crank can rotate synchronously with the transmission assembly, the crank in the connecting rod assembly is circumferentially rotated, and the crank drives the wiper to swing through the rocker, thereby realizing the wiper function. On the other hand, the transmission assembly is added to the wiper device, the transmission assembly is detachably connected with the output shaft and connected with the crank, so that the connecting rod assembly and the transmission assembly are integrated, and the connecting rod assembly and the transmission assembly are separable from the output shaft of the motor, so that the same motor assembly and different connecting rod assemblies can be adaptively combined when the arrangement space provided by the vehicle for the wiper device is different, the motor assembly of the wiper device of different vehicle models can be universal, in addition, the wiper device can also use different motor assemblies and the same connecting rod assemblies for similar arrangement spaces, so that the connecting rod assemblies can also be universal, universal development is realized, and the design cost is reduced. Meanwhile, the motor assembly or the connecting rod assembly can be replaced alone during maintenance of the wiper device, the situation that the entire wiper device needs to be replaced is improved, and the maintenance cost is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0021] Figure 1 A structural schematic diagram of the wiper device provided by the embodiments of the present application is shown in the figure;

[0022] Figure 2 A partial sectional view of the wiper device provided by the embodiments of the present application is shown in the figure;

[0023] Figure 3 A structural schematic diagram of the transmission assembly provided by the embodiments of the present application is shown in the figure;

[0024] Figure 4 A structural schematic diagram of the connecting rod assembly, the transmission assembly and the bracket provided by the embodiments of the present application is shown in the figure;

[0025] Figure 5 A structural schematic diagram of the spline cooperation between the transmission member and the output shaft in the embodiments of the present application is shown in the figure;

[0026] Figure 6 A structural schematic diagram of the cooperation between the protrusion and the groove between the transmission member and the output shaft in an embodiment of the present application is shown in the figure;

[0027] Figure 7 A structural schematic diagram of the cooperation between the protrusion and the groove between the transmission member and the output shaft in another embodiment of the present application is shown in the figure;

[0028] Figure 8 Fig. 6 is a schematic view of a structure of a transmission member and an output shaft in the present application.

[0029] 10, wiper device; 10a, protrusion; 10b, groove; 11, link assembly; 111, crank; 112, rocker; 12, motor assembly; 121, output shaft; 1211, first gear; 1212, first shaft body; 122, housing; 122a, third opening; 122b, sink; 13, transmission assembly; 131, transmission member; 131a, connecting passage; 131b, limiting portion; 1311, second gear; 1312, second shaft body; 132, bearing; 133, mounting member; 133a, accommodating cavity; 133b, first opening; 133c, second opening; 14, bracket. DETAILED DESCRIPTION

[0030] The embodiments of the present application will be described in further detail to the accompanying drawings and examples. The following examples are used to illustrate the present application, but cannot be used to limit the scope of the present application.

[0031] In the description of the embodiments of the present application, it should be noted that unless specifically defined and limited, the terms "axial", "radial", and "circumferential" are the axial, radial, and circumferential of the rotating shaft, respectively. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0032] In the description of the embodiments of the present application, it should be noted that the terms "center", "upper", "inner", "outer", and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the embodiments of the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the embodiments of the present application. In addition, the terms "first", "second", "third" are only for the purpose of description, and cannot be understood as indicating or implying relative importance.

[0033] In the description of the embodiments of the present application, it should be noted that unless specifically defined and limited, the terms "communication" and "connection" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium. For those skilled in the art, the specific meanings of the above terms in the embodiments of the present application can be understood according to the specific circumstances.

[0034] In the related art, most of the motor assembly and the linkage assembly of the wiper device are arranged in the front engine compartment of the vehicle, and are easily affected by the space of the front engine compartment. Therefore, generally, one vehicle model is designed with one type of wiper device, and it is difficult to develop a universal wiper device, resulting in a high development cost of the wiper device. In addition, since the motion relationship between the motor assembly and the linkage assembly in the wiper device is complex, the motion angle and the motion distance are high, and therefore, the wiper device is generally designed as an integral whole, so that when a part is damaged during subsequent maintenance, the entire wiper device needs to be replaced, thereby increasing the maintenance cost of the vehicle.

[0035] Based on the above situation, a first aspect of an embodiment of the present application provides a wiper device 10, please refer to Figures 1 to 8 The wiper device 10 includes a linkage assembly 11, a wiper, a motor assembly 12, and a transmission assembly 13. The linkage assembly 11 is arranged on the vehicle body of the vehicle. The linkage assembly 11 includes a crank 111 and a rocker 112. The crank 111 can drive the rocker 112 to swing by rotating. The wiper is connected with the rocker 112. The motor assembly 12 includes an output shaft 121. The transmission assembly 13 is detachably connected with the output shaft 121 and connected with the crank 111; the output shaft 121 drives the crank 111 to rotate through the transmission assembly 13. The crank 111 drives the wiper to swing through the rocker 112.

[0036] It should be noted that the linkage assembly 11 can also be referred to as a linkage mechanism or a hinge four-bar mechanism. There are various forms of linkage mechanisms, such as a crank 111 rocker 112 mechanism, a crank 111 slider mechanism, etc.

[0037] In the embodiment of the present application, the linkage assembly 11 can be a crank 111 rocker 112 mechanism, which includes a crank 111, a rocker 112, a linkage, and a frame. In the mechanism, the component used to support the moving component is referred to as the frame, for example, the vehicle body; the component capable of making a full rotation motion is referred to as the crank 111, and the component capable of swinging within a certain range is referred to as the rocker 112.

[0038] In the crank 111 rocker 112 mechanism, one end of the crank 111 is hinged to one end of the linkage, the other end of the linkage is hinged to the free end of the rocker 112, and the other end of the rocker 112 is hinged to the frame. In this way, the crank 111 drives the rocker 112 to move through the linkage, and the continuous rotation motion of the crank 111 is converted into the reciprocating swing of the rocker 112 around the hinge point of the rocker 112 and the frame through the linkage.

[0039] Exemplarily, two crank 111 rocker 112 mechanisms are included in the embodiment of the present application, the two crank 111 rocker 112 mechanisms share one crank 111, that is, the connecting rods of the two crank 111 rocker 112 mechanisms are connected to the same crank 111, and the continuous rotation of one crank 111 is converted into the synchronous reciprocating swing of two rockers 112.

[0040] The wiper is connected to the rocker 112, so that the rotation of the crank 111 is converted into the reciprocating swing of the rocker 112 through the connecting rod, and the rocker 112 drives the wiper to reciprocate and wipe, thereby realizing the wiper function.

[0041] It should be noted that the output shaft 121 of the motor assembly 12 can be the output shaft of the motor itself in the motor assembly 12, or the output shaft of the transmission mechanism after the motor is driven by the transmission mechanism.

[0042] Exemplarily, the motor assembly 12 includes a transmission mechanism and a wiper motor, and the transmission mechanism is a worm gear transmission, so that the output shaft of the wiper motor and the output shaft of the transmission mechanism are staggered, making the structure of the wiper device 10 more compact.

[0043] The transmission assembly 13 is detachably connected to the output shaft 121, wherein the detachable connection can be fastener connection, clamping, etc.

[0044] It should be noted that the connection between the transmission assembly 13 and the crank 111 is a fixed connection, for example, welding or riveting, or other forms, which are not limited here. The connection between the transmission assembly 13 and the crank 111 is a fixed connection, so that the integrity of the two is better, and relative movement does not occur, which improves the accuracy of the transmission assembly 13 transmitting torque and rotation angle to the crank 111, and improves the situation that the design parameters of the connecting rod assembly 11 are easily affected when the motor assembly 12 is disassembled.

[0045] The transmission assembly 13 is detachably connected to the output shaft 121 and connected to the crank 111, so that the transmission assembly 13 is fixedly connected to the crank 111 and detachably connected to the output shaft 121 of the motor assembly 12, thereby realizing the connection of the connecting rod assembly 11 and the transmission assembly 13 as a whole, and the separation between the output shaft 121 of the motor. Therefore, when the arrangement space provided by the vehicle for the wiper device 10 is different, the same motor assembly 12 and different connecting rod assemblies 11 can be used for adaptive combination design, and the motor assembly 12 of the wiper device 10 of different vehicle models can be universal, thereby reducing the design cost. At the same time, during the maintenance process of the wiper device 10, the motor assembly 12 or the connecting rod assembly 11 can be replaced separately, which improves the situation that the entire wiper device 10 needs to be replaced, and reduces the maintenance cost.

[0046] The output shaft 121 drives the crank 111 to rotate through the transmission assembly 13, that is, the output shaft 121 and the transmission assembly 13 are circumferentially limited, so that the output shaft 121 can drive the transmission assembly 13 to rotate synchronously, and the transmission assembly 13 is fixedly connected with the crank 111, so that the crank 111 can rotate synchronously with the transmission assembly 13, realizing the rotation of the crank 111 in the connecting rod assembly 11.

[0047] Exemplarily, the transmission assembly 13 and the output shaft 121 are connected through spline fitting, realizing detachable connection, and forming circumferential limitation between the output shaft 121 and the transmission assembly 13, so that the output shaft 121 drives the transmission assembly 13 to rotate synchronously.

[0048] Exemplarily, the transmission assembly 13 and the output shaft 121 can also be connected through key groove fitting.

[0049] The transmission assembly 13 is a component with transmission function, which can be in the form of a gear, a shaft sleeve, etc.

[0050] The wiper device 10 provided by the embodiment of the application has the following advantages. On the one hand, the output shaft 121 of the motor assembly 12 drives the crank 111 of the connecting rod assembly 11 to rotate through the transmission assembly 13, and the output shaft 121 and the transmission assembly 13 are circumferentially limited, so that the output shaft 121 can drive the transmission assembly 13 to rotate synchronously, and the transmission assembly 13 is fixedly connected with the crank 111, so that the crank 111 can rotate synchronously with the transmission assembly 13, realizing the rotation of the crank 111 in the connecting rod assembly 11, so that the crank 111 drives the wiper to swing through the rocker 112, realizing the wiper function. On the other hand, the transmission assembly 13 is detachably connected with the output shaft 121 and connected with the crank 111, so that the connecting rod assembly 11 and the transmission assembly 13 are integrated, and the connecting rod assembly 11 and the transmission assembly 13 can be separated from the output shaft 121 of the motor, so that the same motor assembly 12 and different connecting rod assemblies 11 can be adaptively combined when the arrangement space provided by the vehicle for the wiper device 10 is different, the motor assembly 12 of the wiper device 10 of different vehicle models can be universal, in addition, the wiper device 10 can also use different motor assemblies 12 and the same connecting rod assembly 11 for similar arrangement space, so that the connecting rod assembly 11 can also be universal, realizing universal development, thereby reducing the design cost. At the same time, the wiper device 10 can replace the motor assembly 12 or the connecting rod assembly 11 during maintenance, improving the condition that the entire wiper device 10 needs to be replaced, and reducing the maintenance cost.

[0051] In some embodiments, please refer to Figures 1 to 5The transmission assembly 13 comprises a transmission member 131. The transmission member 131 is connected with the crank 111. The transmission member 131 is internally formed with a connecting channel 131a. At least part of the connecting channel 131a is sleeved on the output shaft 121 and is in spline connection with the output shaft 121.

[0052] It should be noted that in this embodiment, the transmission member 131 is in the form of a sleeve, the connecting channel 131a is communicated to at least one side end surface of the transmission member 131, and the inner spline is formed on the inner wall of the connecting channel 131a, while the outer periphery of the output shaft 121 is formed with an outer spline.

[0053] The inner spline of the connecting channel 131a is in connection with the outer spline of the output shaft 121, so that the output shaft 121 and the transmission member 131 are limited in the circumferential direction of the output shaft 121, the movement of the output shaft 121 can be synchronously transmitted to the transmission member 131, and the connection between the output shaft 121 and the transmission member 131 is more reliable.

[0054] In some embodiments, referring to Figures 1 to 3 The transmission assembly 13 comprises a bearing 132 and a mounting member 133. The transmission member 131 is a shaft sleeve. The inner ring of the bearing 132 is connected with the outer wall of the shaft sleeve. The outer ring of the bearing 132 is connected with the mounting member 133. The mounting member 133 is detachably connected with the housing of the motor assembly 12 to limit the shaft sleeve in the axial direction of the output shaft 121.

[0055] It should be noted that the connection between the inner ring of the bearing 132 and the outer wall of the shaft sleeve, and the connection between the outer ring of the bearing 132 and the mounting member 133 are both interference connections, so as to improve the reliability of the connection between the inner and outer rings of the bearing 132 and the shaft sleeve and the mounting member 133 respectively, to improve the situation that the inner and outer rings of the bearing 132 shake during rotation, and to increase the service life and reliability of the bearing 132.

[0056] When the inner and outer rings of the bearing 132 are connected with the shaft sleeve and the mounting member 133 respectively, liquid nitrogen cooling assembly can be used, that is, the parts inside the interference fit surface are cooled during assembly, and the cooled parts are inserted into the normal temperature parts through the principle of thermal expansion and cold contraction to realize cold assembly. On the contrary, hot assembly can also be used, that is, the parts outside the interference fit surface are heated, and the heated parts are sleeved outside the normal temperature parts to realize hot assembly.

[0057] The mounting member 133 is detachably connected with the housing of the motor assembly 12, which can limit the shaft sleeve in the axial direction of the output shaft 121, improve the situation that the shaft sleeve is separated from the output shaft 121 in the axial direction, and improve the integrity and compactness of the transmission assembly 13. On the other hand, the transmission assembly 13 can be integrally disassembled from the motor assembly 12 through the mounting member 133, so that the disassembly of the transmission assembly 13 is more convenient.

[0058] In some embodiments, referring to Figures 2 to 3 The mounting member 133 has a receiving cavity 133a, a first opening 133b and a second opening 133c. The first opening 133b and the second opening 133c are respectively arranged at two ends of the mounting member 133 along the first direction. The bearing 132 is arranged in the receiving cavity 133a through the first opening 133b. The shaft sleeve partially extends out of the second opening 133c from the receiving cavity 133a and is connected with the crank 111. The shaft sleeve arranged in the receiving cavity 133a is connected with the inner ring of the bearing 132. The first direction is parallel to the axial direction of the output shaft 121.

[0059] It can be understood that, in the projection on the plane perpendicular to the axial direction of the output shaft 121, the outer diameter of the outer ring of the bearing 132 needs to be not more than the size of the first opening 133b.

[0060] The bearing 132 is arranged in the receiving cavity 133a through the first opening 133b, so that the outer ring of the bearing 132 is in interference fit with the receiving cavity 133a.

[0061] The shaft sleeve partially extends out of the second opening 133c from the receiving cavity 133a and is connected with the crank 111, which means that the hole diameter of the second opening 133c is greater than the outer diameter of the shaft sleeve, so that the shaft sleeve can extend out of the second opening 133c and does not interfere with the second opening 133c, and at the same time, the crank 111 is connected with the shaft sleeve extending out and is spaced apart from the mounting member 133, which improves the interference between the crank 111 and the mounting member 133 when the crank 111 rotates.

[0062] The shaft sleeve arranged in the receiving cavity 133a is connected with the inner ring of the bearing 132, that is, in interference fit with the inner ring of the bearing 132, so that the bearing 132 can support the shaft sleeve during rotation of the shaft sleeve, which increases the transmission performance and structural strength of the transmission assembly 13 and improves the transmission capacity.

[0063] In some embodiments, referring to Figures 2 to 3 The end wall of the receiving cavity 133a where the shaft sleeve is located extends away from the output shaft 121 along the radial direction of the output shaft 121 to form a limiting portion 131b. The limiting portion 131b abuts against the end surface of the inner ring of the bearing 132 facing the first opening 133b.

[0064] That is, one end of the shaft sleeve forms a limiting portion 131b, and the limiting portion 131b can be a shoulder, which is used to abut against the end surface of the inner ring of the bearing 132 facing the first opening 133b, so as to axially limit the shaft sleeve and improve the situation that the shaft sleeve is easily pulled out of the second opening 133c.

[0065] It should be noted that the bearing 132 is first put into the accommodating cavity 133a through the first opening 133b, and then the shaft sleeve is put into the first opening 133b after the interference fit with the mounting piece 133, until the limiting portion 131b of the shaft sleeve abuts against the end face of the inner ring of the bearing 132 facing the first opening 133b, and the other end of the shaft sleeve extends out of the second opening 133c, and the interference connection is also formed between the shaft sleeve and the inner ring of the bearing 132, so as to realize the assembly of the transmission assembly 13.

[0066] In some embodiments, the wall thickness of the shaft sleeve is not less than 3 mm. For example, the wall thickness of the shaft sleeve is 3 mm, 4 mm, 5 mm, 6 mm, 8 mm, 10 mm, 12 mm, 15 mm, 18 mm, 20 mm, 22 mm, 25 mm, or 30 mm, etc.

[0067] It should be noted that the wall thickness of the shaft sleeve is not less than 3 mm, which means that the thinnest wall thickness of the shaft sleeve is not less than 3 mm.

[0068] In this way, by setting the thinnest wall thickness of the shaft sleeve to be not less than 3 mm, the shaft sleeve can withstand the internal stress caused by temperature change during assembly, and can also withstand the external stress between the shaft sleeve and the inner ring of the bearing 132, and can also transmit the torque of the output shaft 121, thereby improving the failure conditions such as deformation or fracture of the shaft sleeve during production, assembly and working.

[0069] In some embodiments, referring to Figures 1 to 3 The wiper device 10 further comprises a bracket 14 connected with the vehicle body. The bracket 14 is detachably connected with the motor assembly 12 and the mounting piece 133 respectively. The mounting piece 133 is clamped between the bracket 14 and the motor assembly 12.

[0070] It should be noted that one end of the bracket 14 is connected with the vehicle body, and the other end is detachably connected with the motor assembly 12 and the mounting piece 133 respectively, so as to fix the wiper device 10 on the vehicle body.

[0071] It should be noted that the structure of the bracket 14 needs to be determined according to the arrangement space of the motor assembly 12 and the connecting rod assembly 11.

[0072] For example, if the arrangement space is small, the bracket 14 can be a plate-shaped piece; if the arrangement space is large, the bracket 14 can be an aluminum casting.

[0073] The bracket 14 is detachably connected with the motor assembly 12 and the mounting piece 133 respectively, and specifically, can be a fastener connection.

[0074] The mounting piece 133 is clamped between the bracket 14 and the motor assembly 12, that is, after the bracket 14 is connected with the motor assembly 12, the mounting piece 133 can be clamped, so as to increase the connection strength of the mounting piece 133 and the motor assembly 12, improve the compactness of assembly, and make the cooperation of the transmission assembly 13 and the motor assembly 12 more reliable.

[0075] In some embodiments, referring to Figures 1 to 4 The motor assembly 12 comprises a housing 122. The housing 122 has a third opening 122a. The output shaft 121 extends out of the housing 122 through the third opening 122a. The housing 122 around the third opening 122a is recessed to form a sink 122b. At least part of the transmission assembly 13 is arranged in the sink 122b. The mounting surface of the bracket 14 is attached to the housing 122.

[0076] Exemplarily, the sink 122b is circular or of other shapes.

[0077] In this way, by matching at least part of the transmission assembly 13 with the sink 122b, the housing 122 of the motor assembly 12 is attached to the mounting surface of the bracket 14, so as to improve the compactness of the overall structure after assembly.

[0078] Exemplarily, the side wall of the mounting piece 133 near one end of the motor assembly 12 extends along the radial direction of the output shaft 121 to form a flange in a direction away from the first opening 133b. The flange is connected to the bracket 14 by fasteners, and the flange is arranged in the sink 122b, so that the mounting surface of the bracket 14 is attached to the housing 122.

[0079] In some embodiments, referring to Figures 6 to 7 The transmission assembly 13 comprises a transmission piece 131 connected with the crank 111. One of the output shaft 121 and the transmission piece 131 is provided with a protrusion 10a, and the other is provided with a groove 10b. The protrusion 10a and the groove 10b are matched to limit the output shaft 121 and the transmission piece 131 in the circumferential direction of the output shaft 121. The transmission piece 131 can be detachably connected with the output shaft 121 in the axial direction of the output shaft 121. The output shaft 121 drives the crank 111 to rotate around the central axis of the output shaft 121 through the transmission piece 131.

[0080] It should be noted that the number of the protrusion 10a and the groove 10b can be one, two, three, four, five, six or seven, etc., which is not limited herein. In addition, the number of the protrusion 10a and the groove 10b can be the same.

[0081] It should be noted that the protrusion 10a and the groove 10b can be formed on the end face or the outer circumferential surface of the output shaft 121, and correspondingly, the protrusion 10a and the groove 10b can be formed on the end face or the inner hole wall of the transmission member 131.

[0082] Exemplarily, the cross section of the protrusion 10a in the projection on the plane perpendicular to the output shaft 121 is in the shape of a polygon, a sector, a circle, or the like, which is not limited herein. Correspondingly, the cross section of the groove 10b in the projection on the plane perpendicular to the output shaft 121 is similar to the cross section shape of the protrusion 10a.

[0083] Here, by setting the protrusion 10a on one of the output shaft 121 and the transmission member 131, and the groove 10b on the other, the protrusion 10a cooperates with the groove 10b to limit the output shaft 121 and the transmission member 131 in the circumferential direction of the output shaft 121, so that the transmission member 131 can be detachably connected with the output shaft 121 in the axial direction of the output shaft 121, thereby realizing the separation of the motor assembly 12 and the connecting rod assembly 11, achieving the development of generalization, and reducing the design cost and maintenance cost.

[0084] In some embodiments, referring to Figures 6 to 7 , one of the end face of the output shaft 121 and the end face of the transmission member 131 is protruded in the axial direction to form the protrusion 10a, and the other is recessed in the axial direction to form the groove 10b.

[0085] In this way, the end face of the output shaft 121 and the end face of the transmission member 131 are cooperated by the protrusion 10a and the groove 10b, so that the transmission member 131 can be detachably connected with the output shaft 121 in the axial direction of the output shaft 121 while limiting the output shaft 121 and the transmission member 131 in the circumferential direction of the output shaft 121, thereby realizing the separation of the motor assembly 12 and the connecting rod assembly 11, achieving the development of generalization, and reducing the design cost and maintenance cost.

[0086] Exemplarily, one of the end face of the output shaft 121 and the end face of the transmission member 131 is protruded in the axial direction to form a single square protrusion, and the other is recessed in the axial direction to form a single square groove 10b, and the end face of the output shaft 121 and the end face of the transmission member 131 are cooperated by the square protrusion and the square groove 10b, so that the movement of the output shaft 121 is synchronously transmitted to the transmission member 131, and at the same time, the cooperation structure between the output shaft 121 and the transmission member 131 is more simple and reliable, and the disassembly is also more simple.

[0087] Exemplarily, one of the end faces of the output shaft 121 and the end face of the transmission member 131 is formed with a plurality of axial protrusions in the form of sectors, and the other is formed with a plurality of axial recesses in the form of sectors 10b. The end faces of the output shaft 121 and the transmission member 131 are matched by the sectors and the sectors 10b, so that the movement of the output shaft 121 is synchronously transmitted to the transmission member 131, while the strength of the matching structure between the output shaft 121 and the transmission member 131 is increased, and the transmission torque is improved.

[0088] In some embodiments, referring to Figure 8 , the transmission assembly 13 includes the transmission member 131, and the output shaft 121 includes a first gear 1211 and a first shaft body 1212 connected with the first gear 1211. The transmission member 131 includes a second shaft body 1312 and a second gear 1311. One end of the second shaft body 1312 is connected with the second gear 1311, and the other end is connected with the crank 111. The output shaft 121 is driven to rotate the crank 111 around the central axis of the second shaft body 1312 by the meshing transmission of the first gear 1211 and the second gear 1311.

[0089] Here, the transmission assembly 13 is matched with the output shaft 121 by the gear, so that the strength of the matching structure between the output shaft 121 and the transmission member 131 is increased, and the reliability of the transmission of the torque and the rotation speed is improved.

[0090] The second aspect of the embodiments of the application provides a vehicle, which includes a vehicle body and the wiper device 10 provided by any of the embodiments of the application. The wiper device 10 is arranged on the vehicle body.

[0091] Specifically, the wiper device 10 is arranged in most of the front compartment of the vehicle, and the wiper of the wiper device 10 can be extended into the front compartment and abut against the window glass. The output shaft 121 of the motor assembly 12 drives the crank 111 to rotate by the transmission assembly 13, the crank 111 drives the rocker 112 to reciprocate, thereby driving the wiper connected with the rocker 112 to reciprocate, so as to realize the wiping function of the wiper device 10.

[0092] The vehicle provided by the embodiment of the application has the following advantages: on the one hand, in the wiper device 10, the output shaft 121 of the motor assembly 12 drives the crank 111 of the connecting rod assembly 11 to rotate through the transmission assembly 13, and the output shaft 121 and the transmission assembly 13 are circumferentially limited, so that the output shaft 121 can drive the transmission assembly 13 to rotate synchronously, and the transmission assembly 13 is fixedly connected with the crank 111, so that the crank 111 can rotate synchronously with the transmission assembly 13, the rotation of the crank 111 in the connecting rod assembly 11 is realized, and the wiper is driven to swing through the rocker 112, so that the wiper function is realized. On the other hand, the transmission assembly 13 is added to the wiper device 10, the transmission assembly 13 is detachably connected with the output shaft 121 and connected with the crank 111, in this way, the connecting rod assembly 11 and the transmission assembly 13 are integrated, and the connecting rod assembly 11 and the output shaft 121 of the motor are separable, so that the same motor assembly 12 and different connecting rod assemblies 11 can be adaptively combined and designed when the arrangement space provided by the vehicle for the wiper device 10 is different, the motor assembly 12 of the wiper device 10 of different vehicle models can be universal, in addition, for similar arrangement spaces, the wiper device 10 can also use different motor assemblies 12 and the same connecting rod assembly 11, so that the connecting rod assembly 11 can also be universal, universal development is realized, and thus the design cost is reduced. Meanwhile, the motor assembly 12 or the connecting rod assembly 11 can be replaced alone in the maintenance process of the wiper device 10, the situation that the entire wiper device 10 needs to be replaced is improved, and the maintenance cost of the vehicle is reduced.

[0093] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "an example", "a specific example", or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. In the present application, the illustrative description of the above terms is not necessarily for the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any appropriate manner in any one or more embodiments or examples. In addition, the different embodiments or examples described in the present application and the features of the different embodiments or examples can be combined by those skilled in the art without contradiction.

[0094] The above only describes the preferred embodiments of the present application and is not intended to limit the present application. Those skilled in the art can make various changes and modifications to the present application. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application shall be included in the protection scope of the present application.

Claims

1. A windshield wiper device for a vehicle, characterized in that, include: A linkage assembly disposed on the body of the vehicle, the linkage assembly including a crank and a rocker arm, the crank being capable of rotating to drive the rocker arm to swing. A windshield wiper, which is connected to the rocker arm; The motor assembly includes an output shaft; A transmission assembly is detachably connected to the output shaft and connected to the crank; the output shaft drives the crank to rotate through the transmission assembly, and the crank drives the wiper to swing through the rocker arm.

2. The wiper device according to claim 1, characterized in that, The transmission assembly includes a transmission component connected to the crank. The transmission component has a connecting channel inside, and at least a portion of the connecting channel is sleeved on the output shaft and engages with the spline of the output shaft.

3. The wiper device according to claim 2, characterized in that, The transmission assembly includes a bearing and a mounting component. The transmission component is a bushing. The inner ring of the bearing is connected to the outer wall of the bushing, and the outer ring of the bearing is connected to the mounting component. The mounting component is detachably connected to the housing of the motor assembly to limit the bushing in the axial direction of the output shaft.

4. The wiper device according to claim 3, characterized in that, The mounting component has a receiving cavity, a first opening, and a second opening. The first opening and the second opening are respectively located at both ends of the mounting component along a first direction. The bearing is disposed in the receiving cavity through the first opening. A portion of the bushing extends out of the receiving cavity from the second opening and is connected to the crank. The bushing disposed in the receiving cavity is connected to the inner ring of the bearing. The first direction is parallel to the axial direction of the output shaft.

5. The wiper device according to claim 4, characterized in that, The bushing extends radially away from the output shaft from one end of the outer wall of the receiving cavity to form a limiting portion, the limiting portion abutting against the end face of the inner ring of the bearing facing the first opening; and / or, The wall thickness of the bushing is not less than 3mm.

6. The wiper device according to claim 3, characterized in that, The wiper device also includes a bracket connected to the vehicle body, the bracket being detachably connected to the motor assembly and the mounting component, and the mounting component being clamped between the bracket and the motor assembly.

7. The wiper device according to claim 6, characterized in that, The motor assembly includes a housing having a third opening, an output shaft extending from the housing through the third opening, a recess in the housing around the third opening to form a groove, at least a portion of the transmission assembly being disposed within the groove, and the mounting surface of the bracket being fitted to the housing.

8. The wiper device according to claim 1, characterized in that, The transmission assembly includes a transmission member connected to the crank. One of the output shaft and the transmission member is provided with a protrusion, and the other is provided with a groove. The protrusion and the groove cooperate to limit the output shaft and the transmission member in the circumferential direction of the output shaft. The transmission member can be detachably connected to the output shaft along the axial direction of the output shaft. The output shaft drives the crank to rotate around the central axis of the output shaft through the transmission member.

9. The wiper device according to claim 8, characterized in that, One of the end face of the output shaft and the end face of the transmission member protrudes along the axial direction to form the protrusion, while the other is recessed along the axial direction to form the groove.

10. The wiper device according to claim 1, characterized in that, The transmission assembly includes a transmission element, the output shaft includes a first gear and a first shaft body connected to the first gear, the transmission element includes a second shaft body and a second gear, one end of the second shaft body is connected to the second gear, and the other end is connected to the crank, the output shaft drives the crank to rotate around the central axis of the second shaft body through the meshing of the first gear and the second gear.

11. A vehicle, characterized in that, It includes a vehicle body and a windshield wiper device as described in any one of claims 1 to 10, the windshield wiper device being disposed on the vehicle body.

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