Wiper arm nozzle, wiper and automobile

Abstract

The present application provides a wiper arm nozzle, a wiper, and a vehicle, the wiper arm nozzle including a nozzle body, an attachment part, the inside of which is hollow and the bottom of which is connected to a water supply port of the nozzle body and the attachment part is arranged so that both ends of the attachment part are open, and a flow guide plate inserted into the attachment part, the flow guide plate having a first flow path and a second flow path, the first flow path forming a first water outlet at one end of the attachment part and the second flow path forming a second water outlet at the other end of the attachment part, self-excited flow paths connected to the first flow path and the second flow path, the first flow path and the second flow path gradually widen in a direction approaching the water outlet. The wiper arm nozzle is provided with a first water outlet and a second water outlet, both of which are arranged so that they become wider in the direction approaching the outlet. By connecting self-excited flow paths to the first and second flow paths, the water sprayed from the two water outlets forms a fan shape that sways from side to side. This allows the water flow to be sprayed more evenly, covering a larger area with less area left uncovered.

Description

[Technical Field]

[0001] The present invention relates to the technical field of automotive parts, and in particular to a wiper arm nozzle, a wiper and an automobile. [Background technology]

[0002] More and more cars on the market are equipped with wiper arm nozzles. When the car is moving, the wiper arm nozzle is not affected by wind pressure, and almost all water is sprayed onto the cleaning area without waste, resulting in more effective cleaning and wetting. The cleaning effect is also better, providing a better user experience without obstructing the driver's field of vision.

[0003] However, all wiper arm nozzles currently on the market are extremely compact and small in size, and require space to accommodate the ball, which requires a very small ball. The spray pattern is dotted, but when sprayed onto the glass, it becomes columnar. The columnar water flow covers a small area and leaves many areas uncovered, making the glass susceptible to damage when the wiper wipes dry. These dot-type wiper arm nozzles are relatively thick, which not only reduces washer fluid utilization but also tends to obstruct the driver's view. Summary of the Invention

[0004] The first aspect of the present application provides a wiper arm nozzle to solve the drawback of the prior art that the spot-type wiper arm nozzle has a small spray area and many areas are not covered, making the glass prone to damage when the wiper wipes dry.

[0005] In a first aspect of the present application, in order to achieve the above object, a nozzle body provided with a water supply port; an attachment portion provided on the nozzle body, the interior of the attachment portion being hollow to form an attachment chamber, the bottom of the attachment chamber being in communication with the water supply port, and a first opening and a second opening being opened at both ends of the attachment portion; a flow guide plate that is inserted into the mounting chamber and has a portion located at the first opening and the second opening, the flow guide plate having a first flow path and a second flow path, the first flow path forming a first water outlet at the first opening, and the second flow path forming a second water outlet at the second opening, A self-excited flow path is connected to the first flow path and the second flow path, and the first flow path gradually widens in the direction approaching the first water outlet, and the second flow path gradually widens in the direction approaching the second water outlet.

[0006] The wiper arm nozzle is provided with a first water outlet and a second water outlet, both of which are arranged so that they widen in the direction of approach, and the first and second flow paths are connected to self-oscillating flow paths, so that the water sprayed from the two water outlets forms a fan shape that sways from side to side, and the water particles form an even S-shaped distribution in the fan-shaped area, resulting in a more even water flow, covering a larger area and leaving less uncovered area.

[0007] Preferably, the self-excited flow path includes a diversion section provided on the flow guide plate, and two diversion blocks facing each other are provided inside the diversion section, a first diversion section is formed between the two diversion blocks and the inner wall of the diversion section, and a second diversion section is formed between the two diversion blocks, with the second diversion section gradually widening in the direction approaching the first or second water outlet.

[0008] Preferably, when the flow guide plate is inserted into the mounting chamber, the portions of the flow guide plate located on both sides of the first flow path and the second flow path are in close contact with the inner wall of the mounting portion to form a first water discharge passage and a second water discharge passage, but the flow directions of the first flow path and the second flow path are opposite.

[0009] Preferably, the first flow path and the second flow path are located on the same side of the flow guide plate, or The first flow path and the second flow path are located on opposite sides of the flow guide plate.

[0010] Preferably, a restricting block is provided on the mounting portion, the restricting block is positioned below the second opening, and the restricting block comes into contact with the flow guide plate when the flow guide plate is inserted into the mounting chamber.

[0011] Preferably, the first opening is larger than the second opening, and the first opening forms an insertion end of the mounting portion.

[0012] Preferably, the limiting block is recessed to form an engagement portion, and an extension segment is provided on the flow guide plate, and the extension segment can be inserted into the engagement portion.

[0013] Preferably, the attachment portion is integrally connected to the nozzle body.

[0014] A second aspect of the present invention is A wiper arm, A wiper is provided, which is a wiper arm nozzle according to any of the above embodiments, wherein the wiper arm nozzle is provided on the wiper arm, and the first water outlet and the second water outlet each include a wiper arm nozzle facing in two opposite directions on the wiper arm.

[0015] The wiper arm nozzle of this wiper sprays water from two directions, covering a large area and making it easier for the wiper arm to wipe.The wiper arm nozzle sprays water over a large area and evenly, so water does not fly far when the wiper arm rotates, preventing it from obstructing the driver's field of vision.

[0016] A third aspect of the present invention provides a motor vehicle including two wipers according to the above embodiments.

[0017] Since the automobile has the wiper of the above embodiment, it has the beneficial effects that can be achieved by the wiper, and a detailed description thereof will be omitted here. [Brief explanation of the drawings]

[0018] In order to more clearly explain the technical solutions of the present invention or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. It goes without saying that the drawings described below are some embodiments of the present invention, and those skilled in the art can also obtain other drawings from these drawings without inventive work.

[0019] [Figure 1] 1 is a structural schematic diagram of a wiper arm nozzle provided by an embodiment of the first aspect of the present invention; FIG. [Figure 2] 2 is a structural schematic diagram of a nozzle body provided by an embodiment of the present invention; FIG. [Figure 3] FIG. 2 is a side view of a nozzle body provided in accordance with an embodiment of the present invention. [Figure 4] 1 is a structural schematic diagram of a flow guide plate provided in an embodiment of the present invention; [Figure 5] 10 is a schematic diagram of the rear structure of another flow guide plate provided by an embodiment of the present invention; [Figure 6] 1 is a front structural schematic diagram of another flow guide plate provided by an embodiment of the present invention; [Figure 7] FIG. 2 is a structural schematic diagram of a wiper provided according to an embodiment of the second aspect of the present invention. [Figure 8] FIG. 1 is a schematic diagram of wiper flashing according to the prior art; [Figure 9] FIG. 9 is a flow rate distribution diagram of the wiper spot spray of FIG. 8. [Figure 10] 1 is a schematic view of a wiper jet according to the present invention; [Figure 11] FIG. 4 is a flow distribution diagram of the wiper jet of the present invention. [Figure 12] 1 is a schematic diagram of the self-excitation of the self-excitation flow path of the flow guide plate of the present invention; [Figure 13] FIG. 13 is a partially enlarged schematic view of a in FIG. [Explanation of symbols]

[0020] 100 wiper arm nozzle 110 Nozzle body 111 Water inlet 120 Mounting part 121 First Opening 122 Second Opening 123 Restricted Block 124 Engagement part 130 Current guide plate 131 First Channel 132 Second Channel 133 Channel Wall 134 Extension Segment 140 Self-excited flow path 141 Diversion section 1411 Diversion Block 1413 1st flow guide section 1412 2nd flow guide section 200 wiper 210 wiper arm DETAILED DESCRIPTION OF THE INVENTION

[0021] In order to make the objectives, technical solutions and advantages of the present invention clearer, the technical solutions of the present invention will be described clearly and completely below with the aid of the drawings of the present invention. It goes without saying that the described embodiments are not all of the embodiments of the present invention, but only some of them. If a person skilled in the art obtains other embodiments based on the embodiments of the present invention without inventive steps, they all fall within the protection scope of the present invention.

[0022] Referring to Figures 8 and 9, the conventional wiper arm nozzle adopts a point injection structure, and the water sprayed from the wiper arm nozzle is in the form of a column. Since there are large gaps between the water columns, dry wiping occurs during the wiper arm operation, which can damage the glass.

[0023] As shown in Figure 1, an embodiment of the present application provides a wiper arm nozzle 100 including a nozzle body 110, a mounting portion 120, and a flow guide plate 130. The wiper arm nozzle 100 is made up of three parts, which simplifies the manufacturing process and reduces the number of parts, thereby reducing manufacturing costs and labor costs.

[0024] 1 to 4, a water supply port 111 is provided on a nozzle body 110, and a mounting part 120 is provided on the nozzle body 110 and is hollow inside to form a mounting chamber, the bottom of which communicates with the water supply port 111. A first opening 121 and a second opening 122 are opened on both ends of the mounting part 120, and a flow guide plate 130 is inserted into the mounting chamber and is partially located in the first opening 121 and the second opening 122. A first flow path 131 and a second flow path 132 are provided on a flow guide plate 130, the first flow path 131 forms a first water outlet at a first opening 121, and the second flow path 132 forms a second water outlet at a second opening 122, but a self-excited flow path 140 is connected to the first flow path 131 and the second flow path 132, so that the first flow path 131 gradually widens in the direction approaching the first water outlet, and the second flow path 132 gradually widens in the direction approaching the second water outlet.

[0025] When the wiper arm nozzle 100 sprays water onto the glass, water at a certain pressure enters the mounting chamber from the water inlet 111 and is sprayed from the first and second water outlets via the first and second flow paths 131 and 132, respectively, due to the action of the flow guide plate 130. The first opening 121 and the second opening 122 are located at both ends of the mounting part 120, so that the water flows from the first and second outlets in opposite directions. The first flow path 131 is connected to the self-oscillating flow path 140 in the direction approaching the first outlet, and the second flow path 132 is connected to the self-oscillating flow path 140 in the direction approaching the second outlet. Therefore, the water sprayed from the first and second outlets spreads in a fan shape swaying left and right toward both ends, and the water particles form a uniform S-shaped distribution in the fan-shaped area. This allows the water flow to hit a larger area of ​​the glass, leaving less uncovered area, which prevents the wiper from wiping dry and damaging the glass.

[0026] 12 and 13, in one embodiment, the self-excited flow channel 140 includes a diverting section 141 provided on a guiding plate 130. Two diverting blocks 1411 are provided inside the diverting section 141, facing each other. A first diverting section 1413 is formed between the two diverting blocks 1411 and the inner wall of the diverting section 141. A second diverting section 1412 is formed between the two diverting blocks 1411, with the second diverting section 1412 gradually widening in the direction toward the first outlet. The two first diverting sections 1413 are located on either side of the second diverting section 1412, and water flowing from the two first diverting sections 1413 merges with water flowing from the second diverting section 1412 to enter the first or second outlet, where it is acted upon by the inner wall of the first or second outlet, causing an alternating swaying state.

[0027] In some specific embodiments, the fan-shaped water streams sprayed from the first and second water outlets may form an angle of 140° to 180°, thereby increasing the area covered by the water streams.

[0028] When the flow guide plate 130 is inserted into the mounting chamber, the portions of the flow guide plate 130 located on both sides of the first flow path 131 and the second flow path 132 adhere to the inner wall of the mounting part 120 to form the first and second water discharge passages. It should be understood that the first and second flow paths 131 and 132 are groove structures on the surface of the flow guide plate 130. When the flow guide plate 130 adheres to the inner wall of the mounting part 120, the water flow is guided and flows through the first and second water discharge passages, so that the water is sprayed evenly from the first and second water discharge ports, with the first and second flow paths 131 and 132 flowing in opposite directions. This increases the coverage area because water is sprayed from two directions.

[0029] 4, in one embodiment, the first flow path 131 and the second flow path 132 are located on the same side of the flow guide plate 130. The first flow path 131 and the second flow path 132 share the same water supply passage, and the water flows into the water supply passage, then splits at the intersection of the first flow path 131 and the second flow path 132, and enters the first flow path 131 and the second flow path 132, respectively, and is then sprayed out of the first water outlet and the second water outlet.

[0030] 5 and 6, in another embodiment, the first flow path 131 and the second flow path 132 are located on both sides of the flow guide plate 130. The first flow path 131 and the second flow path 132 each have two independent water supply ends, and water flows from the two water supply ends into the first flow path 131 and the second flow path 132, respectively, and then sprays out from the first water outlet and the second water outlet. Compared to when the first flow path 131 and the second flow path 132 are located on the same side of the flow guide plate 130, the flow guide plate 130 in this embodiment makes more efficient use of the space on the flow guide plate 130, thereby making the structure of the flow guide plate 130 more compact.

[0031] In the present application, the first flow path 131 or the second flow path 132 includes two opposing flow path walls 133, which gradually converge from the first or second water outlet toward the interior of the mounting chamber. The two flow path walls 133 intersect with each other. In some specific embodiments, the first flow path 131 and the second flow path 132 are both trapezoidal at the first opening 121 and the second opening 122. After the flow guide plate 130 and the mounting part 120 are installed and sealed, the self-acting flow path 140 causes the water flow from the first or second water outlet to form a flat fan shape. When the water flow oscillates from side to side, the water particles form a uniform S-shaped distribution within the fan area, resulting in a more uniform water flow.

[0032] 1 to 3 , in one embodiment, a restriction block 123 is provided on the mounting part 120, and the restriction block 123 is located below the second opening 122. When the flow guide plate 130 is inserted into the mounting chamber, the restriction block 123 comes into contact with the flow guide plate 130. To prevent the flow guide plate 130 from being loosened by the action of water flow pressure while inserted into the mounting chamber and thereby affecting the spray effect, the flow guide plate 130 and the mounting part 120 are tightly fitted together. The mounting part 120 and the restriction block 123 together restrict the flow guide plate 130, thereby ensuring a stable installation.

[0033] Furthermore, the first opening 121 is larger than the second opening 122, and the first opening 121 forms the insertion end of the mounting part 120. When the flow guide plate 130 is inserted into the mounting part 120 from the first opening 121 and hits the limiting block 123, its movement stops, and at this time the flow guide plate 130 abuts against the limiting block 123 and the inner walls on both sides and the inner wall at the top of the mounting part 120. By inserting the flow guide plate 130 from the first opening 121 in this way, the wiper arm nozzle 100 can be more easily attached.

[0034] Furthermore, the restricting block 123 is recessed to form an engagement portion 124, which is groove-shaped. An extension segment 134 is provided on the flow guide plate 130, and the extension segment 134 can be inserted into the engagement portion 124. The extension segment 134 is tightly fitted into the mouth of the groove, i.e., when the extension segment 134 is inserted into the groove, the extension segment 134 adheres to the inner wall of the groove. This prevents the water flow from leaking out from the gap between the groove and the flow guide plate 130 when the flow guide plate 130 is pressed into place in the mounting portion 120, and avoids affecting the spray effect of the nozzle.

[0035] 1, in one embodiment, the mounting portion 120 is part of the nozzle body 110, and the mounting portion 120 and the nozzle body 110 are both plastic parts, integrally formed by injection molding of plastic parts, which facilitates the manufacture of the nozzle body 110. In addition, the mounting portion 120 smoothly connects to the nozzle body 110, which prevents a large gap from forming between the mounting portion 120 and the flow guide plate 130 when the flow guide plate 130 is inserted, thereby ensuring good sealing when the flow guide plate 130 is inserted and ensuring spray efficiency.

[0036] The wiper arm nozzle 100 of the present application comprises a nozzle body 110, a flow guide plate 130, and a mounting part 120, and has a small number of parts, a simple structure, and is easy to install. The mounting part 120 is integrally connected to the nozzle body 110, and the flow guide plate 130 is tightly fitted to the mounting part 120, which results in a compact nozzle structure and reduces manufacturing and labor costs.

[0037] As shown in Figures 7, 10 and 11, a second aspect of the present invention provides a wiper 200 including a wiper arm 210 and the wiper arm nozzle 100 of any of the above-described embodiments. The wiper arm nozzle 100 is mounted on the wiper arm 210, with a first water outlet and a second water outlet facing two opposite directions of the wiper arm 210, respectively. The water sprayed from the first water outlet and the second water outlet is shaped like a swaying fan, and the wiper arm nozzle 100 of the wiper 200 sprays water from two directions, covering a large area and spraying evenly, making it easy to wipe the wiper arm 210. Because the wiper arm nozzle 100 sprays water over a large area and evenly, it does not splash water far when the wiper arm 210 rotates, thereby avoiding obstructing the driver's field of vision.

[0038] A third aspect of the present invention provides a vehicle including two wipers 200 of the above embodiment. The two wipers 200 are rotatably mounted on the vehicle and are used to spray water onto and wipe the glass of the vehicle.

[0039] Since the automobile has the wiper 200 of the above embodiment, it has the above beneficial effects that can be achieved by the wiper 200, and detailed explanations thereof will be omitted here.

[0040] Finally, it should be noted that the above embodiments are only for illustrating the technical solutions of the present invention, and are not intended to limit the same. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art will understand that the technical solutions described in the above embodiments may still be modified or some technical features may be replaced with equivalents. These modifications or replacements will not deviate from the essence of the technical solutions of the embodiments of the present invention.

Claims

1. a nozzle body provided with a water supply port; an attachment portion provided on the nozzle body, the interior of the attachment portion being hollow to form an attachment chamber, the bottom of the attachment chamber being in communication with the water supply port, and a first opening and a second opening being opened at both ends of the attachment portion; a flow guide plate that can be inserted into the mounting chamber and has a portion located at the first opening and the second opening, the flow guide plate having a first flow path and a second flow path, the first flow path forming a first water outlet at the first opening, and the second flow path forming a second water outlet at the second opening, A self-excited flow path is connected to the first flow path and the second flow path, the first flow path gradually widens in a direction approaching the first water outlet, and the second flow path gradually widens in a direction approaching the second water outlet, The self-excited flow path includes a diverting section provided on the flow guide plate, and two diverting blocks facing each other are provided inside the diverting section, a first diverting section is formed between the two diverting blocks and an inner wall of the diverting section, and a second diverting section is formed between the two diverting blocks, and the second diverting section gradually widens in a direction approaching the first water outlet or the second water outlet, a restricting block is provided on the mounting portion, the restricting block is positioned below the second opening, and the restricting block abuts against the flow guide plate when the flow guide plate is inserted into the mounting chamber.

2. 2. The wiper arm nozzle according to claim 1, wherein when the flow guide plate is inserted into the mounting chamber, portions of the flow guide plate located on both sides of the first flow path and the second flow path are in close contact with the inner wall of the mounting portion to form first and second water discharge passages, but the flow directions of the first and second flow paths are opposite to each other.

3. the first flow path and the second flow path are located on the same side of the flow guide plate; or The wiper arm nozzle according to claim 2, wherein the first flow passage and the second flow passage are located on both sides of the flow guide plate.

4. 2. The wiper arm nozzle according to claim 1, wherein the first opening is larger than the second opening, and the first opening forms an insertion end of the mounting portion.

5. The wiper arm nozzle according to claim 1 , wherein the limiting block is recessed to form an engaging portion, and an extension segment is provided on the flow guide plate, and the extension segment can be inserted into the engaging portion.

6. The wiper arm nozzle according to claim 1 , wherein the mounting portion is integrally connected to the nozzle body.

7. A wiper arm, 7. The wiper arm nozzle according to claim 1, wherein the wiper arm nozzle is provided on the wiper arm, and the first water outlet and the second water outlet each include a wiper arm nozzle facing in two opposite directions on the wiper arm.

8. A motor vehicle comprising two wipers according to claim 7.

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