Washing nozzle assembly for vehicle, air window washing assembly and vehicle

Abstract

The invention discloses a washing nozzle assembly for a vehicle, an air window washing assembly and the vehicle, and relates to the technical field of vehicle parts. The washing nozzle assembly comprises a pipeline, a nozzle body, a valve body assembly and a nozzle ball head, and a conveying channel is formed in the pipeline; one end of the pipeline is sleeved with the nozzle body, and a fluid channel suitable for being communicated with the conveying channel is formed in the nozzle body; the valve body assembly is arranged in the fluid channel, and the valve body assembly is configured to respond to fluid pressure changes in the conveying channel and open or close an outlet of the conveying channel in a switchable mode. The nozzle ball head is arranged at the end, away from the pipeline, of the nozzle body and suitable for spraying out fluid flowing through the valve body assembly. According to the washing nozzle assembly, backflow of cleaning liquid is effectively prevented through the integrated valve body assembly, meanwhile, residual water flow is effectively prevented from being thrown out, and the system stability, reliability and the cleaning effect are improved.

Description

Technical Field

[0001] This invention relates to the field of vehicle component technology, and in particular to a washer nozzle assembly, windshield washer assembly, and vehicle washing machine assembly for vehicles. Background Technology In related technologies, because the nozzles of vehicle washing systems lack a sealed structure, backflow occurs between the washing fluid tank, water pipe, and nozzle based on the principle of communicating vessels. Each use requires refilling the water pipe with fluid, causing the washing and wiping systems to become asynchronous. During the initial wiper movement, the rubber blades experience dry friction against the glass, accelerating wear and shortening their lifespan. Furthermore, the nozzles are positioned high, and the water pipes are not sealed after use. During specific driving conditions, gravity and centrifugal force cause washing fluid to leak from the nozzles, leaving watermarks even when the wipers are not working, leading to user dissatisfaction.

[0002] To address these issues, the industry has introduced one-way valves to prevent backflow of cleaning fluid. However, most one-way valves currently have an independent two-way structure, which, due to limitations imposed by the vehicle layout and surrounding environment, are often more than 500mm away from the nozzle. This means that in extreme user scenarios, cleaning fluid can still leak out from the water pipe between the nozzle and the one-way valve, and the problem has not been completely solved. Summary of the Invention

[0003] This invention aims to at least solve one of the technical problems existing in the prior art. Therefore, one object of this invention is to provide a washing nozzle assembly for vehicles. According to the washing nozzle assembly of the present invention, the integrated valve body assembly effectively prevents backflow of the cleaning fluid and effectively eliminates residual water splashing out, thereby improving system stability, reliability, and cleaning effect.

[0004] The present invention also proposes a windshield washer assembly having the above-described washer nozzle assembly.

[0005] The present invention also proposes a vehicle having the above-described windshield washer assembly.

[0006] The washing nozzle assembly for a vehicle according to the present invention includes: a conduit having a delivery channel formed therein; a nozzle body fitted onto one end of the conduit, the nozzle body having a fluid channel formed therein suitable for communication with the delivery channel; a valve body assembly disposed within the fluid channel, the valve body assembly being configured to switchably open or close the outlet of the delivery channel in response to changes in fluid pressure within the delivery channel; and a nozzle ball head disposed at the end of the nozzle body away from the conduit, the nozzle ball head being adapted to eject fluid flowing through the valve body assembly.

[0007] According to an embodiment of the present invention, the washer nozzle assembly, by directly integrating the valve body assembly into the fluid channel of the nozzle body, achieves flow interception at the outlet of the delivery channel, effectively preventing the backflow of the cleaning fluid and ensuring that the system can work immediately upon reuse, avoiding dry friction of the wipers and wear of the rubber strips. Simultaneously, due to the small spatial distance between the nozzle body and the valve body assembly, the washing fluid capacity between them is also small, insufficient to form a water flow later, effectively preventing the cleaning fluid in the pipeline from being splashed out and remaining on the windshield, ensuring the stability and reliability of the system, and improving the vehicle cleaning effect and user experience.

[0008] According to some embodiments of the present invention, the valve body assembly includes: a seal having a sealing surface adapted to close the outlet of the delivery channel; and an elastic member connected between the seal and the nozzle body, the elastic member being adapted to apply a preload force to the seal to maintain the seal in a position where the sealing surface closes the outlet of the delivery channel.

[0009] According to some embodiments of the present invention, the sealing element includes: a sealing portion having the sealing surface; a connecting portion connected to the side of the sealing portion away from the pipe, the diameter of the connecting portion being smaller than the diameter of the sealing portion; wherein at least a portion of the elastic member is sleeved on the outer periphery of the connecting portion, and the elastic member abuts against the sealing portion in the axial direction.

[0010] According to some embodiments of the present invention, the seal is constructed as a flexible element.

[0011] According to some embodiments of the present invention, one end of the pipe is formed with a guide slope, the guide slope being away from the conveying channel and adapted to contact the sealing surface.

[0012] According to some embodiments of the present invention, the nozzle ball head is detachably disposed on the nozzle body.

[0013] According to some embodiments of the present invention, an annular groove is formed on the outer peripheral surface of one end of the pipe that extends into the fluid channel; The washing nozzle assembly further includes a sealing ring, which is fitted inside the annular groove.

[0014] According to some embodiments of the present invention, a snap-fit ​​protrusion is formed around the outer peripheral surface of one end of the pipe that extends into the fluid channel; a snap-fit ​​groove corresponding to the snap-fit ​​protrusion is formed on the inner wall of the fluid channel of the nozzle body; the snap-fit ​​protrusion is embedded in the snap-fit ​​groove to fix the pipe to the nozzle body; wherein, the annular groove is located axially between the snap-fit ​​protrusion and the end face of one end of the pipe.

[0015] The following is a brief description of the windshield washer assembly according to the present invention.

[0016] The windshield washer assembly according to the present invention includes a washer tank having a liquid storage chamber formed therein; a washer pump disposed in the washer tank and communicating with the liquid storage chamber; a washer pipe having one end connected to the outlet of the washer pump; a washer nozzle assembly configured as the washer nozzle assembly described in any of the above embodiments, the pipe of the washer nozzle assembly being connected to the other end of the washer pipe; and a controller electrically connected to the washer pump for controlling the start and stop of the washer pump.

[0017] Since the windshield washer assembly according to the present invention includes the washer nozzle assembly described in any of the above embodiments, the windshield washer assembly according to the present invention can effectively prevent backflow of cleaning fluid and splashing of residual water, ensuring that the system works immediately, stably and reliably, and improving the windshield cleaning effect and user experience.

[0018] The vehicle according to the present invention is briefly described below.

[0019] The vehicle according to the present invention includes the windshield washer assembly described in any of the above embodiments. Because the vehicle according to the present invention includes the windshield washer assembly described in any of the above embodiments, the vehicle according to the present invention can ensure efficient and stable windshield cleaning, thus improving the driving experience.

[0020] Additional aspects and advantages of the invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description

[0021] The above and / or additional aspects and advantages of the present invention will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which: Figure 1 This is a schematic diagram of the structure of a washing nozzle assembly according to an embodiment of the present invention; Figure 2 This is a cross-sectional schematic diagram of a washing nozzle assembly according to an embodiment of the present invention; Figure 3 This is a cross-sectional schematic diagram of a washing nozzle assembly according to another embodiment of the present invention.

[0022] Figure label: 1. Washing nozzle assembly; 11. Pipeline; 111. Conveying channel; 112. Guide slope; 113. Annular groove; 114. Snap-fit ​​protrusion. 12. Nozzle body; 121. Fluid channel; 122. Snap-fit ​​groove; 13. Valve body assembly; 131. Seal; 1311. Sealing part; 1312. Connecting part; 132. Elastic element; 14. Nozzle ball head; 15. Sealing ring. Detailed Implementation

[0023] Embodiments of the present invention are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and should not be construed as limiting the present invention.

[0024] In the description of this invention, it should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential," etc., indicating orientation or positional relationships, are based on the orientation or positional relationships shown in the accompanying drawings and are only for the convenience of describing the invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of the invention. Furthermore, features defined with "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, unless otherwise stated, "a plurality of" means two or more. In the description of this invention, it should be noted that, unless otherwise explicitly specified and limited, the terms "installation," "connection," and "linking" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this invention based on the specific circumstances.

[0025] In related technologies, because the nozzles of vehicle washing systems lack a sealed structure, backflow occurs between the washing fluid tank, water pipe, and nozzle based on the principle of communicating vessels. Each use requires refilling the water pipe with fluid, causing the washing and wiping systems to become asynchronous. During the initial wiper movement, the rubber blades experience dry friction against the glass, accelerating wear and shortening their lifespan. Furthermore, the nozzles are positioned high, and the water pipes are not sealed after use. During specific driving conditions, gravity and centrifugal force cause washing fluid to leak from the nozzles, leaving watermarks even when the wipers are not working, leading to user dissatisfaction.

[0026] To address these issues, the industry has introduced one-way valves to prevent backflow of cleaning fluid. However, most one-way valves currently have an independent two-way structure, which, due to limitations imposed by the vehicle layout and surrounding environment, are often more than 500mm away from the nozzle. This means that in extreme user scenarios, cleaning fluid can still leak out from the water pipe between the nozzle and the one-way valve, and the problem has not been completely solved.

[0027] The following is for reference. Figures 1-3 A washing nozzle assembly 1 according to an embodiment of the present invention is described.

[0028] like Figure 1 and Figure 2 As shown, the vehicle washer nozzle assembly 1 according to the present invention includes a conduit 11, a nozzle body 12, a valve body assembly 13, and a nozzle ball head 14. A delivery channel 111 is formed within the conduit 11. The delivery channel 111 is used to deliver washing liquid and guide the washing liquid to the nozzle body 12.

[0029] The nozzle body 12 is fitted onto one end of the pipe 11, thus connecting the nozzle body 12 to the pipe 11. A fluid channel 121 is formed within the nozzle body 12, suitable for communication with the delivery channel 111. That is, the washing liquid flowing from the delivery channel 111 of the pipe 11 can enter the fluid channel 121 of the nozzle body 12. The nozzle body 12 can introduce the washing liquid delivered by the pipe 11 into its own interior, provide an installation position for the valve assembly 13, and the internal fluid channel 121 plays a certain guiding and constraining role in the flow of the washing liquid.

[0030] Valve assembly 13 is disposed within fluid channel 121 and can directly control the flow of washing liquid within fluid channel 121. Valve assembly 13 is configured to switchably open or close the outlet of delivery channel 111 in response to changes in fluid pressure within delivery channel 111. When the fluid pressure within delivery channel 111 reaches a certain value (e.g., when the vehicle washing system starts and the pump pressurizes and delivers the washing liquid), valve assembly 13 opens the outlet of delivery channel 111, allowing the washing liquid to pass through; conversely, when the pressure drops to a certain level (e.g., when the washing system stops working and the pressure disappears), valve assembly 13 closes the outlet, preventing the washing liquid from continuing to flow out or back.

[0031] The nozzle ball head 14 is located at the end of the nozzle body 12 away from the pipe 11, at the foremost position of the washing nozzle assembly 1. The nozzle ball head 14 is adapted to spray the fluid flowing through the valve body assembly 13, so that it can be accurately sprayed onto the parts of the vehicle that need to be cleaned, such as the windshield, to achieve the vehicle cleaning function.

[0032] When the vehicle washing system is started, the washing pump pressurizes the washing fluid and sends it into the delivery channel 111 of pipe 11. The washing fluid flows along the delivery channel 111 to the fluid channel 121 at the nozzle body 12. As the fluid pressure increases, the valve assembly 13 responds to the pressure change by opening the outlet of the delivery channel 111, allowing the washing fluid to continue flowing through the valve assembly 13 and reaching the nozzle ball head 14. Finally, the nozzle ball head 14 sprays the washing fluid out, completing the vehicle washing operation. When the washing system stops working, the pressure decreases, and the valve assembly 13 closes the outlet to prevent the washing fluid from flowing back or continuing to flow out, ensuring the stability and reliability of the system.

[0033] According to an embodiment of the present invention, the washer nozzle assembly 1 integrates the valve body assembly 13 directly into the fluid channel 121 of the nozzle body 12, thereby achieving flow interception at the outlet of the delivery channel 111. This effectively prevents the backflow of the cleaning fluid, ensuring that the system can work immediately upon reuse and avoiding dry friction of the wipers and wear of the rubber strips. Simultaneously, due to the small spatial distance between the nozzle body 12 and the valve body assembly 13, the washing fluid capacity between them is also small, insufficient to form a water flow later. This effectively prevents the cleaning fluid in the pipeline from being splashed out and remaining on the windshield, ensuring the stability and reliability of the system and improving the vehicle cleaning effect and user experience.

[0034] Therefore, the washing nozzle assembly 1 according to the present invention effectively prevents the backflow of cleaning fluid by integrating the valve body assembly 13, and effectively prevents residual water from being splashed out, thereby improving the system stability, reliability and cleaning effect.

[0035] According to some embodiments of the present invention, such as Figure 2 As shown, the valve body assembly 13 includes a seal 131 and an elastic element 132. The pre-tightening force provided by the elastic element 132 keeps the seal 131 in a position that can close the outlet of the delivery channel 111, thereby achieving effective control of the flow of washing liquid and preventing adverse conditions such as backflow.

[0036] The seal 131 has a sealing surface suitable for closing the outlet of the conveying channel 111. The sealing surface directly contacts the outlet of the conveying channel 111 and achieves a seal. When it is necessary to close the conveying channel 111, the sealing surface fits tightly against the outlet of the conveying channel 111, preventing the washing liquid from flowing out or flowing back from the outlet.

[0037] An elastic element 132 is connected between the seal 131 and the nozzle body 12. The elastic element 132 can be a spring, a rubber elastomer, or other element with elastic deformation capabilities, and is connected to both the seal 131 and the nozzle body 12. The elastic element 132 is adapted to apply a preload force to the seal 131 to maintain the seal 131 in the position where the sealing surface closes the outlet of the conveying channel 111. The preload force is the force pre-applied to the seal 131, ensuring that the seal 131 remains in the position where the sealing surface closes the outlet of the conveying channel 111 when no other external force (such as washing liquid pressure) is applied.

[0038] When the washing liquid pressure changes, the elastic deformation capability of the elastic element 132 allows it to adjust the force applied to the seal 131 according to the pressure magnitude, thereby realizing the opening and closing action of the valve body assembly 13. For example, when the washing liquid pressure rises to a certain level, the pressure overcomes the preload of the elastic element 132, pushing the seal 131 to move and opening the outlet of the delivery channel 111; when the pressure decreases, the elastic element 132 returns to its original shape, pulling the seal 131 back to the sealing position and closing the outlet.

[0039] The pre-tightening force provided by the elastic element 132 enables automatic control of sealing and opening, which can quickly respond to changes in the washing liquid pressure, ensure effective control of the washing liquid flow, improve the performance of the washing nozzle assembly 1, and thus enhance the overall vehicle cleaning system effect and user experience.

[0040] According to some embodiments of the present invention, such as Figure 2 and Figure 3 As shown, the sealing element 131 includes a sealing part 1311 and a connecting part 1312, which can better realize the sealing function, while providing a reasonable structural basis for the installation and stable operation of the elastic element 132, ensuring that the valve body assembly 13 can reliably control the opening and closing of the outlet of the delivery channel 111 and prevent the washing liquid from flowing back.

[0041] The sealing part 1311 has a sealing surface, so when the valve body assembly 13 is in the closed state, the sealing part 1311 is in close contact with the outlet of the delivery channel 111 through the sealing surface, preventing the washing liquid from flowing out or flowing back from the outlet.

[0042] The connecting part 1312 is connected to the side of the sealing part 1311 opposite to the pipe 11. The diameter of the connecting part 1312 is smaller than the diameter of the sealing part 1311, making the sealing element 131 structurally more reasonable and facilitating assembly and mating with the elastic element 132. The connecting part 1312 provides an installation position for the elastic element 132. Because its diameter is smaller than that of the sealing part 1311, the elastic element 132 can be easily fitted onto its outer circumference, achieving a stable connection with the sealing element 131. At the same time, this structure also helps to accurately transmit the elastic force to the sealing part 1311 when the elastic element 132 is working, enabling the sealing part 1311 to move as expected, realizing the opening and closing action of the outlet of the conveying channel 111.

[0043] At least a portion of the elastic element 132 is fitted around the outer periphery of the connecting portion 1312, making the connection between the elastic element 132 and the sealing element 131 more secure and enhancing stability. The elastic element 132 abuts against the sealing portion 1311 in the axial direction, thereby stably transmitting the preload applied by the elastic element 132 to the sealing portion 1311, ensuring that the sealing surface can fit tightly against the outlet of the conveying channel 111, and enhancing the sealing performance.

[0044] According to some embodiments of the present invention, the seal 131 is constructed as a flexible element, enabling it to undergo elastic deformation. The flexible element is made of a material with a certain degree of flexibility and elasticity, such as rubber, silicone, or other polymeric materials, allowing it to change shape when subjected to external forces and return to its original shape after the external force is removed. Compared to a rigid seal 131, the flexible element does not have a fixed, rigid shape structure; its form can be flexibly adjusted according to changes in the surrounding environment and the applied forces.

[0045] When the valve body assembly 13 closes the outlet of the conveying channel 111, the flexible seal 131 undergoes adaptive deformation under the pre-tightening force applied by the elastic member 132, so that its sealing surface can fit more fully with the contour of the outlet of the conveying channel 111, and can achieve effective sealing even in the presence of micro-irregularities, thereby improving sealing reliability.

[0046] The elastic deformation characteristics of seal 131 make it more sensitive to pressure changes. When the washing fluid pressure changes, the flexible seal 131 can react quickly and deform accordingly, thereby enabling the rapid opening and closing of the outlet of the delivery channel 111. This ensures that the cleaning system can control the flow of washing fluid in a timely and accurate manner, improving the efficiency and performance of the cleaning system. Furthermore, seal 131 can be appropriately bent and adjusted during installation according to actual needs, making it easier to install in the designated position.

[0047] According to some embodiments of the present invention, such as Figure 3As shown, a guide ramp 112 is formed at one end of the pipe 11. The guide ramp 112 is away from the conveying channel 111 and is adapted to contact the sealing surface. The guide ramp 112 is located on the side of the pipe 11 near the seal 131, and its inclination direction causes its surface to extend radially outward from the port of the pipe 11. For example, if the conveying channel 111 is horizontal, the guide ramp 112 is inclined upward or downward from the port of the pipe 11, forming a slope-like structure.

[0048] The guide ramp 112 provides a specific contact and movement trajectory for the flexible seal 131. During the process of closing the outlet of the delivery channel 111, the sealing surface of the flexible seal 131 moves along the inclined direction of the guide ramp 112 and better wraps the port of the pipe 11 through deformation, thereby improving the sealing performance.

[0049] According to some embodiments of the present invention, the nozzle ball head 14 is detachably disposed on the nozzle body 12, which facilitates the installation of the valve body assembly 13. During the assembly process, the valve body assembly 13 can be installed into the fluid channel 121 of the nozzle body 12 first to complete the assembly of the valve body assembly 13 and the nozzle body 12, ensuring that the valve body assembly 13 can normally respond to pressure changes and control the flow of washing liquid.

[0050] The detachable design facilitates subsequent maintenance, repair, or replacement of the valve body assembly 13. When the valve body assembly 13 malfunctions, the nozzle ball head 14 can be removed for easy access and operation of the valve body assembly 13, eliminating the need for extensive disassembly of the entire washing nozzle assembly 1. This improves maintenance and replacement efficiency and reduces maintenance costs. Furthermore, the detachable structure allows for independent processing and assembly of individual components during manufacturing, enhancing production flexibility and efficiency.

[0051] According to some embodiments of the present invention, such as Figure 2 and Figure 3 As shown, an annular groove 113 is formed on the outer circumferential surface of the end of the pipe 11 that extends into the fluid channel 121. The annular groove 113 is a groove structure that surrounds the outer circumference of the pipe 11, which can provide a specific position for the subsequent installation of the sealing ring 15.

[0052] The washing nozzle assembly 1 also includes a sealing ring 15, which is fitted within the annular groove 113. The sealing ring 15 is an annular component with a sealing function, made of a material with certain elasticity and sealing properties, such as rubber.

[0053] By setting the annular groove 113 and the sealing ring 15, a reliable seal can be achieved at the connection between the pipe 11 and the nozzle body 12. When the pipe 11 is assembled into the fluid channel 121 of the nozzle body 12, the sealing ring 15, which is fitted in the annular groove 113 of the pipe 11, will make a tight fit with the inner wall of the fluid channel 121, which can effectively prevent the washing liquid from leaking at the joint gap between the pipe 11 and the nozzle body 12, and ensure that all the washing liquid flowing out from the delivery channel 111 is guided into the fluid channel 121 of the nozzle body 12, thereby improving the sealing performance of the washing liquid delivery path.

[0054] In addition, the annular groove 113 plays a role in positioning and limiting the sealing ring 15, preventing the sealing ring 15 from axially shifting or falling off during assembly or use, thus ensuring the long-term stability of the sealing effect.

[0055] According to some embodiments of the present invention, such as Figure 2 and Figure 3 As shown, a snap-fit ​​protrusion 114 is formed on the outer circumference of one end of the pipe 11 that extends into the fluid channel 121. The snap-fit ​​protrusion 114 is a protruding structure on the outer circumference of the pipe 11, and its shape is ring-shaped, distributed around the entire circumference of the pipe 11.

[0056] The inner wall of the fluid channel 121 of the nozzle body 12 has a snap-fit ​​groove 122 corresponding to the snap-fit ​​protrusion 114. The shape and size of the snap-fit ​​groove 122 match the snap-fit ​​protrusion 114 and can accommodate the snap-fit ​​protrusion 114, thereby achieving a tight fit between the two.

[0057] The snap-fit ​​protrusion 114 is embedded in the snap-fit ​​groove 122 to secure the pipe 11 to the nozzle body 12. When the pipe 11 is inserted into the fluid channel 121 of the nozzle body 12, the snap-fit ​​protrusion 114 on the pipe 11 will embed into the snap-fit ​​groove 122 on the inner wall of the fluid channel 121 of the nozzle body 12. The tight fit between the snap-fit ​​protrusion 114 and the snap-fit ​​groove 122 can effectively prevent the pipe 11 from falling off the nozzle body 12 or moving relative to it during use, ensuring the reliability of the connection.

[0058] The annular groove 113 is located axially between the snap-fit ​​protrusion 114 and the end face of one end of the pipe 11, making it difficult for the fluid in the fluid channel 121 to flow through the sealing ring 15 to the position of the snap-fit ​​protrusion 114. This effectively prevents the snap-fit ​​protrusion 114 from loosening under the long-term impact of water flow, thus ensuring the stability and reliability of the connection between the pipe 11 and the nozzle body 12.

[0059] The following is a brief description of the windshield washer assembly according to the present invention.

[0060] The windshield washer assembly according to the present invention includes a washer tank, a washer pump, a washer hose, a washer nozzle assembly 1, and a controller. A reservoir is formed within the washer tank. The reservoir stores washer fluid, providing a reserve of washer fluid for the windshield washer system. Sufficient washer fluid is stored in the washer tank to meet the vehicle's windshield cleaning needs under different conditions.

[0061] The wash pump is located in the wash tank and connected to the liquid storage chamber, allowing it to directly draw wash liquid from the chamber. As a power source, the wash pump pressurizes and delivers the wash liquid from the storage chamber upon startup. This pressurization provides sufficient pressure for the wash liquid to pass smoothly through the subsequent wash nozzle assembly 1 and ultimately be sprayed onto the windshield to achieve the cleaning purpose.

[0062] One end of the washing pipe is connected to the outlet of the washing pump, and the other end is connected to the pipe 11 of the washing nozzle assembly 1. The washing pipe connects the washing pump and the washing nozzle assembly 1, forming a washing liquid delivery channel 111. The washing pipe guides the washing liquid, pressurized by the washing pump, from the washing pump to the washing nozzle assembly 1. This ensures that the washing liquid can flow smoothly within the system, delivering it from the point of pressure to the point where it needs to be sprayed.

[0063] The controller is electrically connected to the wash pump, enabling it to electrically control the pump. The controller is used to start and stop the wash pump. Users can issue commands to the controller, which then controls the wash pump to start or stop, thereby controlling the operation and shutdown of the entire windshield washer system. This allows users to easily clean their vehicle's windshield according to their specific needs.

[0064] When the user starts the wash pump via the controller, the pump begins operation, drawing and pressurizing the wash fluid from the reservoir of the wash tank. The pressurized wash fluid is then transported through the wash pipe to the pipe 11 of the wash nozzle assembly 1, flowing along the delivery channel 111 to the fluid channel 121 at the nozzle body 12. As the fluid pressure increases, the valve assembly 13 in the wash nozzle assembly 1 responds to the pressure change by opening the outlet of the delivery channel 111. The wash fluid continues to flow through the valve assembly 13 and reaches the nozzle ball head 14, which finally sprays the wash fluid onto the windshield, thus cleaning the vehicle's windshield. After cleaning is complete, the user stops the wash pump via the controller. The pressure decreases, and the valve assembly 13 closes the outlet to prevent wash fluid backflow or continued leakage, ensuring the stability and reliability of the system.

[0065] Since the windshield washer assembly according to the present invention includes the washer nozzle assembly 1 in any of the above embodiments, the windshield washer assembly according to the present invention can effectively prevent backflow of cleaning fluid and splashing of residual water, ensuring that the system works immediately, stably and reliably, and improving the windshield cleaning effect and user experience.

[0066] The vehicle according to the present invention is briefly described below.

[0067] The vehicle according to the present invention includes the windshield washer assembly of any of the above embodiments. Since the vehicle according to the present invention includes the windshield washer assembly of any of the above embodiments, the vehicle according to the present invention can ensure efficient and stable windshield cleaning, thus improving the driving experience.

[0068] In the description of this specification, the references to terms such as "one embodiment," "some embodiments," "illustrative embodiment," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that embodiment or example is included in at least one embodiment or example of the invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same embodiment or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more embodiments or examples.

[0069] Although embodiments of the invention have been shown and described, those skilled in the art will understand that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the invention, the scope of which is defined by the claims and their equivalents.

Claims

1. A wash nozzle assembly for a vehicle, characterized by, The application relates to a washing nozzle assembly. The washing nozzle assembly comprises: a pipe (11) in which a conveying channel (111) is formed; a nozzle body (12) sleeved on one end of the pipe (11), the nozzle body (12) being provided with a fluid channel (121) adapted to communicate with the conveying channel (111); a valve body assembly (13) arranged in the fluid channel (121), the valve body assembly (13) being configured to switchably open or close the outlet of the conveying channel (111) in response to the change of fluid pressure in the conveying channel (111); 2. The wash nozzle assembly of claim 1, wherein, a nozzle ball head (14) arranged on the nozzle body (12) away from the pipe (11), the nozzle ball head (14) being adapted to spray the fluid after passing through the valve body assembly (13). The valve body assembly (13) comprises: a sealing piece (131) provided with a sealing surface adapted to close the outlet of the conveying channel (111); 3. The wash nozzle assembly of claim 2, wherein, a resilient piece (132) connected between the sealing piece (131) and the nozzle body (12), the resilient piece (132) being adapted to apply a pre-tightening force to the sealing piece (131) to maintain the sealing piece (131) in a position in which the sealing surface closes the outlet of the conveying channel (111). The sealing piece (131) comprises: a sealing portion (1311) provided with the sealing surface; a connecting portion (1312) connected to the side of the sealing portion (1311) away from the pipe (11), the diameter of the connecting portion (1312) being smaller than that of the sealing portion (1311); 4. The wash nozzle assembly of claim 2, wherein, wherein at least part of the resilient piece (132) is sleeved on the outer periphery of the connecting portion (1312), and the resilient piece (132) axially abuts against the sealing portion (1311).

5. The wash nozzle assembly of claim 4, wherein, The sealing piece (131) is configured as a flexible piece.

6. The wash nozzle assembly of claim 1, wherein, One end of the pipe (11) is provided with a guide inclined surface (112) away from the conveying channel (111) and adapted to contact the sealing surface.

7. The wash nozzle assembly of claim 1, wherein, The nozzle ball head (14) is detachably arranged on the nozzle body (12). The outer peripheral surface of the end of the pipe (11) extending into the fluid channel (121) is further provided with an annular groove (113) surrounding the whole pipe; 8. The wash nozzle assembly of claim 7, wherein, The washing nozzle assembly further comprises a sealing ring (15) sleeved in the annular groove (113). The outer peripheral surface of the end of the pipe (11) extending into the fluid channel (121) is further provided with a clamping protrusion (114) surrounding the whole pipe; The inner wall of the fluid channel (121) of the nozzle body (12) is provided with a clamping groove (122) corresponding to the clamping protrusion (114); The clamping protrusion (114) is embedded in the clamping groove (122) to fix the pipe (11) to the nozzle body (12). The annular groove (113) is located between the clamping protrusion (114) and the end face of one end of the pipeline (11) in the axial direction.

9. A windscreen washing assembly characterized by, The application relates to a washing nozzle assembly. The washing tank is internally formed with a liquid storage cavity. The washing pump is arranged in the washing tank and communicates with the liquid storage cavity. One end of the washing pipe is connected to the outlet of the washing pump. The controller is electrically connected with the washing pump and is used for controlling the start and stop of the washing pump. The application further relates to a wind window washing assembly comprising the washing nozzle assembly.

10. A vehicle characterized by comprising: ​

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