Wiper blade device

Abstract

A wiper blade device includes a support member, a spoiler member including a support member receptacle, a blade holder, and a spoiler, a wiper blade coupled to the blade holder, and an arm connector, where the spoiler member has a cleaning liquid channel including a nozzle mounting portion, the nozzle mounting portion being configured to receive a cleaning liquid from the wiper blade, and the nozzle mounting portion being configured to receive the cleaning liquid from the spoiler member. The nozzle mounting portion has an open structure in which the cleaning liquid channel is cut at a plurality of positions spaced apart in a longitudinal direction of the spoiler member. The wiper blade device further includes a pair of protruding coupling portions disposed in the nozzle mounting portion, coupled so as to be inserted into the cleaning liquid passage, and protruding on the same line in opposite directions, and a plurality of spray modules configured to spray the cleaning liquid outward. The spray module is removably coupled to the spoiler member.

Description

[0001] Patent application related documents

[0002] This application is based on Korean Patent Application No. 10-2024-0168906 filed with the Korean Intellectual Property Office on November 22, 2024, and asserts priority under Section 119 of Title 35 of the United States Code, the disclosure of which is incorporated herein by reference in its entirety. Technical Field

[0003] This disclosure relates to a wiper blade device for removing foreign objects from a vehicle windshield, and more particularly, to a structure that provides a cleaning fluid spray module on a spoiler component. Background Technology

[0004] Generally, vehicles are equipped with windshield wipers to remove foreign objects from the surfaces of the windshield and rear window. The wiper system performs the function of ensuring the driver's visibility by moving wiper blades with a motor to wipe the windshield surface.

[0005] In traditional windshield wiper systems, the rotational motion of the wiper motor is transmitted to the wiper arm via a linkage mechanism and a pivot. The wiper arm then performs a reciprocating rotational motion at a set angle. Therefore, the wiper blade assembly mounted at the front end of the wiper arm wipes the windshield surface while moving together with the wiper arm.

[0006] Recent trends in wiper blade designs have favored the inclusion of aerodynamic components to ensure smooth operation during high-speed driving. Specifically, flat-plate wiper blade designs include a metal support member (spine) coupled to the aerodynamic component, which reduces the size of the wiper blade design and eliminates structures that could obstruct airflow between the windshield and the wiper blade. Therefore, flat-plate wiper blade designs are widely adopted.

[0007] A spray nozzle is provided to spray windshield washer fluid, reducing friction between the windshield and the wiper blade assembly when the wiper blades are in operation and more effectively removing debris. Traditionally, windshield washer fluid spray nozzles are installed in the fairing or hood of the vehicle's engine compartment. More recently, windshield washer fluid spray nozzles can be installed in arm connectors, which are devices used to connect the wiper blade assembly to the wiper arm. Furthermore, windshield washer fluid spray nozzles can be provided integrated with the spoiler components that make up the wiper blade assembly. When the windshield washer fluid spray nozzle is provided in the spoiler component, it is more effective at removing debris from the windshield surface. However, when the windshield washer fluid spray nozzle is provided integrated with the spoiler component, the entire wiper blade must be replaced when the nozzle becomes clogged or malfunctions, which increases maintenance and replacement costs. Summary of the Invention

[0008] A wiper blade device is provided, which, by improving the configuration structure of the cleaning fluid spray module disposed in the wiper blade device, has excellent spray efficiency and reduced maintenance and replacement costs.

[0009] Additional aspects will be set forth in part in the description which follows, and in part will be apparent from the description or may be learned by practice of the embodiments presented in this disclosure.

[0010] According to one aspect of this disclosure, a wiper blade assembly includes a support member formed from a metal plate into an elongated rod shape; a deflector member including a support member receiving portion coupled thereto; a blade holding portion disposed at the lower part of the deflector member and slidably coupled thereto; and a deflector portion disposed at the upper part of the deflector member and configured to generate downward pressure due to airflow; a wiper blade coupled to the blade holding portion and configured to contact the vehicle windshield and remove foreign objects from the windshield; and an arm connector disposed at the center of the support member and fixed to the deflector member, with a wiper arm coupled thereto. The deflector member has a clear... The cleaning fluid channel, through which cleaning fluid is transmitted in the longitudinal direction of the cleaning fluid channel, includes a nozzle mounting portion having an open structure in which the cleaning fluid channel is cut at multiple locations spaced apart along the longitudinal direction of the baffle member. The wiper blade assembly further includes a plurality of spray modules configured to spray cleaning fluid outward in a jet form, wherein each of the plurality of spray modules has a pair of protruding coupling portions disposed in the nozzle mounting portion, coupled in a manner to be inserted into the cleaning fluid channel, and protruding on the same line in opposite directions, and the plurality of spray modules are detachably coupled to the baffle member.

[0011] One of the multiple spray modules may be a combined cleaning fluid supply module, having a cleaning fluid injection section coupled to a hose into which cleaning fluid supplied from a cleaning fluid tank is introduced.

[0012] The modular cleaning fluid supply module may include a buffer space inside for temporary storage of the cleaning fluid.

[0013] The combined cleaning fluid supply module can be configured at a position spaced apart from the arm connector at the rear end of the wiper arm along the longitudinal direction of the cleaning fluid channel.

[0014] The combined cleaning fluid supply module can be configured such that its upper part is covered by the wiper arm.

[0015] Each of the multiple spray modules may have a hook-like structure coupled around the edge of the turbulence member.

[0016] Each of the multiple spray modules may have at least one spray structure, and the spray holes may be configured to spray cleaning fluid in different directions.

[0017] The wiper blade assembly may further include a quick connector having a channel, wherein one end of the channel is in communication with a hose and the other end of the channel is in communication with a cleaning fluid injection unit, wherein the quick connector may be detachably coupled to the cleaning fluid injection unit.

[0018] The quick connector may include a pair of resilient hooks protruding toward the cleaning fluid injection portion, and a stop protruding in a cantilever shape may be disposed on the outer peripheral surface of the cleaning fluid injection portion for coupling with the pair of resilient hooks.

[0019] The wiper blade assembly may further include a positioning protrusion disposed in the quick connector and protruding toward the upper surface of the cleaning fluid injection section, and a positioning groove disposed in the upper surface of the cleaning fluid injection section and accommodating the positioning protrusion.

[0020] The positioning groove can be made wider in the upward direction, so that when the quick connector rotates in the circumferential direction of the cleaning fluid injection section, the positioning protrusion contained in the positioning groove is pushed upward.

[0021] One of a pair of protruding couplings in a spray module configured to be closest to the opposite end of the turbulence member in the longitudinal direction of the cleaning fluid channel may have a closed structure.

[0022] The stopper may have a ramp that guides the gap between the front ends of a pair of elastic hooks to become wider during the coupling of a pair of elastic hooks. Attached Figure Description

[0023] The above and other aspects, features, and advantages of the specific embodiments disclosed herein will become more apparent from the following description taken in conjunction with the accompanying drawings, wherein:

[0024] Figure 1 A diagram illustrating the state of the wiper blade assembly coupled to the wiper arm according to an embodiment;

[0025] Figure 2 for Figure 1 An exploded perspective view of the main components shown;

[0026] Figure 3 For along Figure 1 A cross-sectional view obtained from line III-III;

[0027] Figure 4 For along Figure 1 A cross-sectional view obtained from the IV-IV line;

[0028] Figure 5 For along Figure 1 A cross-sectional view obtained from the VV line;

[0029] Figure 6 To explain Figure 3 A diagram illustrating the three-dimensional structure of the spray module shown;

[0030] Figure 7 To explain Figure 4A diagram illustrating the three-dimensional structure of the combined cleaning fluid supply module shown;

[0031] Figure 8 To explain Figure 4 A diagram illustrating the three-dimensional structure of the quick connector shown; and

[0032] Figure 9 A diagram illustrating the coupling relationship between the combined cleaning fluid supply module and the quick connector. Detailed Implementation

[0033] Reference will now be made in detail to embodiments, examples of which are illustrated in the accompanying drawings, wherein the same reference numerals refer to the same components throughout the description. In this respect, the embodiments may take different forms and should not be construed as limited to the description herein. Therefore, embodiments are described below only with reference to the accompanying drawings to explain aspects of this disclosure. As used herein, the term “and / or” includes any and all combinations of one or more of the associated listed items. Expressions such as “at least one,” when preceding a list of components, modify the entire list of components and not individual components of the list.

[0034] Hereinafter, embodiments will be described in detail with reference to the accompanying drawings to enable those skilled in the art to readily implement this disclosure. However, this disclosure may be implemented in various different forms and is not limited to the embodiments described herein. However, in describing embodiments in detail, detailed descriptions of relevant known functions or configurations are omitted here where it would be determined that such detailed descriptions would unnecessarily obscure the gist of this disclosure. Furthermore, parts having similar functions and operations are indicated throughout the drawings by the same reference numerals and / or symbols.

[0035] It should be understood that the terms "comprising" or "including" as used herein specify the presence of the stated component, but do not exclude the presence or addition of one or more other components. Specifically, the terms "comprising," "including," or "having" as used herein are inclusive and therefore specify the presence of one or more stated features, integers, steps, operations, elements, components, or any combination thereof, but do not exclude the presence or addition of one or more other features, integers, steps, operations, elements, components, or any combination thereof.

[0036] The singular form used herein is intended to include the plural form as well, unless the context clearly indicates otherwise. Furthermore, the shapes and dimensions of components in the accompanying drawings may be exaggerated for clarity.

[0037] Figure 1 A diagram illustrating the state of the wiper blade assembly coupled to the wiper arm according to an embodiment. Figure 2 for Figure 1 An exploded perspective view of the main components shown. Figure 3 For along Figure 1 The cross-sectional view obtained from line III-III. Figure 4For along Figure 1 The cross-sectional view obtained by line IV-IV. Figure 5 For along Figure 1 The cross-sectional view obtained from line VV. Figure 6 To explain Figure 3 The diagram shows the three-dimensional structure of the spray module. Figure 7 To explain Figure 4 The diagram shows the three-dimensional structure of the combined cleaning fluid supply module. Figure 8 To explain Figure 4 A diagram showing the three-dimensional structure of the quick connector. Figure 9 A diagram illustrating the coupling relationship between the combined cleaning fluid supply module and the quick connector.

[0038] Reference Figures 1 to 9 The wiper blade device 10 according to this disclosure may include a support member (spine) 20, a deflector member 30, a wiper blade 40, an arm connector 50, an end cap 60, and a spray module 70.

[0039] The support member 20 may include metal. The support member 20 may include, for example, stainless steel or carbon steel. The support member 20 may be formed by machining a sheet of metal into an elongated rod shape. The support member 20 may be used to provide an elastic restoring force to the wiper blade 40 described below.

[0040] The turbulence-disrupting member 30 may be formed of synthetic resin. The turbulence-disrupting member 30 may perform one or more functions. The turbulence-disrupting member 30 may accommodate the support member 20. The turbulence-disrupting member 30 may include a tunnel-shaped support member receiving portion 32 coupled to the support member 20. The support member receiving portion 32 may be a hole penetrating in the longitudinal direction of the turbulence-disrupting member 30.

[0041] The spoiler member 30 may include a blade holder 34. The blade holder 34 may be disposed at the lower part of the spoiler member 30. The blade holder 34 may be configured as a groove with an open bottom. The wiper blade 40 is slidably coupled to the blade holder 34.

[0042] The turbulence member 30 may include a turbulence portion. The turbulence portion may be formed at the upper end of the turbulence member 30. The turbulence portion may have a shape that generates a downward pressing force on the turbulence member 30 due to airflow.

[0043] The aerodynamic components 30 may be provided in pairs. In this case, the aerodynamic components 30 may be respectively arranged on opposite sides relative to the center of the arm connector 50 described below.

[0044] The deflector 30 may have a cleaning fluid channel 36 for spraying cleaning fluid. The cleaning fluid channel 36 is a channel formed along the longitudinal direction of the deflector 30. The cleaning fluid channel 36 may be integrally formed with the deflector 30. The cleaning fluid can be transferred through the cleaning fluid channel 36.

[0045] The turbulence-disrupting component 30 may include multiple nozzle mounting portions 38.

[0046] Multiple nozzle mounting portions 38 can be formed by cutting a portion of the cleaning fluid channel 36. The multiple nozzle mounting portions 38 can be configured at positions spaced apart along the longitudinal direction of the baffle member 30. In an embodiment, the nozzle mounting portions 38 are provided at four locations. The nozzle mounting portions 38 can form an open structure in which the cleaning fluid channel 36 is cut off.

[0047] The spray module 70 can be installed in each nozzle mounting portion 38. That is, multiple spray modules 70 can be provided. The spray module 70 is described below.

[0048] Wiper blade 40 may include a material such as rubber. Wiper blade 40 may be coupled to blade holder 34. Wiper blade 40 may be slidably coupled to blade holder 34. Wiper blade 40 may contact the vehicle windshield and remove foreign objects from the windshield. The upper portion of wiper blade 40 may be coupled to blade holder 34, and the lower portion of wiper blade 40 may protrude toward the lower end of spoiler member 30.

[0049] The arm connector 50 may be configured in the central portion of the support member 20. The arm connector 50 may be configured to be fixed to the agitator 30. The arm connector 50 may have a channel communicating with a cleaning fluid channel 36 formed in the agitator 30. The wiper arm 800 may be coupled to the arm connector 50. Hereinafter, the end of the wiper arm 800 coupled to the arm connector 50 in the longitudinal direction is defined as the front end. The end of the wiper arm 800 opposite to the end coupled to the arm connector 50 in the longitudinal direction is defined as the rear end.

[0050] Arm connector 50 allows the spoiler component 30 to be coupled. Arm connector 50 may include multiple components coupled to each other. Wiper arm 800 may be detachably coupled to arm connector 50.

[0051] End caps 60 can be coupled to opposite ends of the agitator 30. End caps 60 can be manufactured by injection molding synthetic resin.

[0052] The spray module 70 may include a pair of protruding couplings 73 and a nozzle 74.

[0053] A pair of protruding coupling portions 73 may be arranged on the same line in the longitudinal direction of the cleaning fluid channel 36. The pair of protruding coupling portions 73 may be formed to protrude in opposite directions. The protruding coupling portions 73 may be coupled by insertion into the cleaning fluid channel 36. The pair of protruding coupling portions 73 may communicate with each other, allowing cleaning fluid to be introduced and discharged. The spray module 70 may include a nozzle 74 for spraying cleaning fluid outwards in a jet form.

[0054] The spray module 70 can be detachably coupled to the turbulence member 30.

[0055] For example, the spray module 70 may have at least one spray structure, and the spray holes may be configured to spray cleaning fluid in different directions.

[0056] One of the spray modules 70 may be a combined cleaning fluid supply module 72, including a cleaning fluid injection section 76 coupled to a hose 900 and into which cleaning fluid is supplied from and introduced from a cleaning fluid tank (not shown). The cleaning fluid injection section 76 may be a chimney-like structure protruding upward from the combined cleaning fluid supply module 72.

[0057] In this embodiment, a buffer space 78 capable of temporarily storing cleaning fluid may be disposed inside the combined cleaning fluid supply module 72. The buffer space 78 can temporarily store cleaning fluid injected through the hose 900. Due to the buffer space 78, the cleaning fluid can be immediately delivered to the cleaning fluid channel 36. The buffer space 78 may communicate with the cleaning fluid injection section 76. Furthermore, the buffer space 78 may be configured to communicate with the protruding coupling section 73.

[0058] The combined windshield washer fluid supply module 72 can be configured at a longitudinally spaced position from the arm connector 50 toward the rear end of the wiper arm 800. Furthermore, the combined windshield washer fluid supply module 72 can be configured such that its upper portion is covered by the wiper arm 800. Therefore, since the hose 900 is coupled to the combined windshield washer fluid supply module 72, it provides the effect of preventing the hose 900 or the quick connector 80 described below from detaching from the combined windshield washer fluid supply module 72 when exposed to accidental external forces. In addition, since the quick connector 80 is not visible from the outside, it provides an aesthetically pleasing appearance.

[0059] The spray module 70 may have a hook-shaped structure 75 coupled around the edge of the turbulence member 30. The hook-shaped structure 75 may cooperate with the protruding coupling portion 73 provided in the spray module 70 to maintain the spray module 70 in a state of stable coupling to the turbulence member 30.

[0060] The combined cleaning fluid supply module 72 may include a quick connector 80.

[0061] The quick connector 80 may have a channel, wherein one end of the quick connector 80 communicates with the hose 900 and the other end of the quick connector 80 communicates with the cleaning fluid injection section 76. The quick connector 80 may be detachably coupled to the cleaning fluid injection section 76. The quick connector 80 may include an injection tube portion 81 protruding to be inserted along the inner circumferential surface of the cleaning fluid injection section 76. An O-ring may be mounted on the outer circumferential surface of the injection tube portion 81.

[0062] The quick connector 80 may include a pair of resilient hooks 82 projecting toward the cleaning fluid injection section 76. A stop 723, projecting in a cantilever shape, may be disposed on the outer peripheral surface of the cleaning fluid injection section 76 to couple with each of the resilient hooks 82. Because the resilient hooks 82 are engaged by the stop 723, the quick connector 80 can maintain coupling to the body of the combined cleaning fluid supply module 72. The resilient hooks 82 may be provided in pairs, and the pair of resilient hooks 82 may be spaced 180° apart circumferentially along the cleaning fluid injection section 76.

[0063] The stopper 723 may have a bevel 724 that guides the gap between the front ends of the elastic hooks 82 to widen during the coupling of the elastic hooks 82.

[0064] The quick connector 80 may include a positioning protrusion 84.

[0065] The positioning protrusion 84 can be configured at a position spaced apart from the position of the elastic hook 82. For example, the positioning protrusion 84 can be configured at a position 90° away from the elastic hook 82. The positioning protrusion 84 can be a protruding structure that protrudes toward the upper surface of the cleaning fluid injection section 76.

[0066] The cleaning fluid injection unit 76 may include a positioning groove 725.

[0067] The positioning groove 725 may be a structure corresponding to the positioning protrusion 84. The positioning groove 725 may be provided on the upper surface of the cleaning fluid injection section 76. The positioning groove 725 may accommodate the positioning protrusion 84. The positioning protrusion 84 and the positioning groove 725 may be provided in pairs.

[0068] The positioning groove 725 can be configured to widen upwards, such that when the quick connector 80 rotates in the circumferential direction of the cleaning fluid injection section 76, the positioning protrusion 84 contained in the positioning groove 725 is pushed upwards.

[0069] One of a pair of protruding coupling portions 73 disposed in a plurality of spray modules 70 may have a closed structure. For example, one of a pair of protruding coupling portions 73 disposed in a spray module 70 disposed in the longitudinal direction closest to the opposite end of the turbulence member 30 may have a closed structure. Since the spray module 70 disposed at the opposite end no longer needs to deliver cleaning fluid, it is ideal for the protruding coupling portion 73 near the end to have a closed structure.

[0070] The following describes in detail the operational effects of the wiper blade assembly 10, including the aforementioned components, using the process of assembling and installing the wiper blade assembly 10 as an example.

[0071] First, the process of assembling the wiper blade assembly 10 is described. Multiple spray modules 70 can be coupled to the spoiler member 30. During this process, the protruding coupling portion 73 can be assembled by inserting it into the cleaning fluid channel 36 formed in the spoiler member 30. Furthermore, the hook structure 75 can be fixed around the edge of the spoiler member 30. Next, the support member 20 can be coupled to the spoiler member 30. The arm connector 50 can be installed in the central portion of the support member 20. In this state, the wiper blade 40 can be slidably coupled to the spoiler member 30. Afterward, the end cap 60 can be coupled to the spoiler member 30. Through these processes, the assembly of the wiper blade assembly 10 is completed. The wiper blade assembly 10 can be installed in a vehicle. It is assumed that the wiper arm 800 is pre-installed in the vehicle. The front end of the wiper arm 800 can be coupled to the arm connector 50. The quick connector 80 of the connecting hose 900 can be coupled to the cleaning fluid injection portion 76 of the combined cleaning fluid supply module 72. More specifically, the quick connector 80 can be pressed with its resilient hooks 82 close to the stop 723. The gap between the resilient hooks 82 widens as the resilient hooks 82 move downward along the ramp 724 of the stop 723, allowing the resilient hooks 82 to couple to the stop 723. During this process, the positioning protrusion 84 can be accommodated in the positioning groove 725, thus allowing for accurate assembly. When disassembling the hose 900 from the combined cleaning fluid supply module 72 for maintenance or repair purposes, the quick connector 80 can be gripped and rotated circumferentially in the cleaning fluid injection section 76. As the resilient hooks 82 are released from the stop 723, the positioning protrusion 84 can be pushed upward along the sidewall of the positioning groove 725. As a result, the quick connector 80 can be easily disassembled from the cleaning fluid injection section 76.

[0072] Furthermore, when the spray module 70 malfunctions, the spray module 70 can be easily separated from the baffle member 30 by using the elastic deformation of the baffle member 30, and then repaired or replaced.

[0073] Furthermore, because of the application of quick connector 80, the height of quick connector 80 can be minimized, so quick connector 80 can even be used in narrow spaces.

[0074] As described above, in the wiper blade assembly according to this disclosure, the spray module for spraying cleaning fluid can be detachably mounted in the agitator supporting the wiper blade. Therefore, when the spray module fails, only the spray module can be replaced separately, thus the wiper blade assembly can be highly efficient in terms of maintenance and replacement.

[0075] Furthermore, because the modular cleaning fluid supply module can be easily attached to and detached from the hose via quick-connect couplings, installation and disconnection time can be reduced.

[0076] In addition, the structure in which the upper part of the combined cleaning fluid supply module is covered by the wiper arm can prevent the connection between the combined cleaning fluid supply module and the hose from being damaged by accidental external forces.

[0077] It should be understood that the embodiments described herein are to be considered in a descriptive sense only and not for limiting purposes. The description of features or aspects within each embodiment should generally be considered as applicable to other similar features or aspects in other embodiments. Although one or more embodiments have been described with reference to the accompanying drawings, those skilled in the art will understand that various changes in form and detail may be made therein without departing from the spirit and scope of this disclosure as defined by the following claims.

Claims

1. A wiper blade device, characterized in that, include: The supporting structure is formed of a metal plate with a long, thin strip shape; A deflector includes a support member receiving portion, the support member being coupled to the support member receiving portion, a blade holding portion disposed at the lower part of the deflector and the wiper blade being slidably coupled to the blade holding portion, and a deflector portion disposed at the upper part of the deflector and configured to generate downward pressure due to airflow. Wiper blade, coupled to the blade holder and configured to contact the windshield of the vehicle and remove foreign objects from the windshield; as well as An arm connector is disposed at the central portion of the support member and fixed to the deflector member, and a wiper arm is coupled to the arm connector. The deflector member has a cleaning fluid channel through which cleaning fluid is delivered longitudinally. The cleaning fluid channel includes a nozzle mounting portion having an open structure in which the cleaning fluid channel is cut at multiple locations spaced apart along the longitudinal direction of the deflector member. The wiper blade assembly further includes a plurality of spray modules configured to spray the cleaning fluid outward in a jet manner. Each of the plurality of spray modules has a pair of protruding coupling portions disposed in the nozzle mounting portion to couple in a manner inserted into the cleaning fluid channel, and protruding in opposite directions along the same line. The plurality of spray modules are detachably coupled to the turbulence-inducing component. One of the plurality of spray modules is a combined cleaning fluid supply module having a cleaning fluid injection section coupled to a hose, wherein the cleaning fluid supplied from the cleaning fluid tank is introduced into the cleaning fluid injection section, and The combined cleaning fluid supply module includes a buffer space inside, which can temporarily store the cleaning fluid.

2. The wiper blade device according to claim 1, characterized in that, The combined cleaning fluid supply module is positioned along the longitudinal direction of the cleaning fluid channel at a location spaced apart from the arm connector at the rear end of the wiper arm.

3. The wiper blade device according to claim 1, characterized in that, The combined cleaning fluid supply module is configured such that its upper part is covered by the wiper arm.

4. The wiper blade device according to claim 1, characterized in that, Each of the plurality of spray modules has a hook-shaped structure coupled around the edge of the turbulence member.

5. The wiper blade device according to claim 1, characterized in that, Each of the plurality of spray modules has at least one spray structure, and the spray holes are configured to spray the cleaning liquid in different directions.

6. The wiper blade device according to claim 1, characterized in that, The device further includes a quick connector having a channel, wherein one end of the channel communicates with the hose and the other end of the channel communicates with the cleaning fluid injection port. The quick connector is detachably coupled to the cleaning fluid injection unit.

7. The wiper blade device according to claim 6, characterized in that, The quick connector includes a pair of resilient hooks that protrude toward the cleaning fluid injection section, and The stop is cantilevered and protrudes from the outer peripheral surface of the cleaning fluid injection section to couple with the pair of elastic hooks.

8. The wiper blade device according to claim 6, characterized in that, Further includes: A positioning protrusion is provided in the quick connector and protrudes toward the upper surface of the cleaning fluid injection part; as well as A positioning groove is disposed in the upper surface of the cleaning fluid injection section and accommodates the positioning protrusion.

9. The wiper blade device according to claim 8, characterized in that, The positioning groove is formed to widen upwards, such that when the quick connector rotates in the circumferential direction of the cleaning fluid injection section, the positioning protrusion housed in the positioning groove is pushed upwards.

10. The wiper blade device according to claim 1, characterized in that, In the plurality of spray modules, one of the pair of protruding coupling portions disposed in the spray module that is closest to the opposite end of the turbulence member in the longitudinal direction of the cleaning fluid channel has a closed structure.

11. The wiper blade device according to claim 7, characterized in that, The stopper has a bevel that guides the gap between the front ends of the pair of elastic hooks to widen during the coupling of the pair of elastic hooks.

Images