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] There are more and more cars on the market 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 to the cleaning area without waste, which can achieve more effective cleaning and wetting. The cleaning effect is also better, so as to provide the driver with a better using experience without obstructing his field of vision.

[0003] However, all wiper arm nozzles on the market today have a very compact outline and are extremely small in size, and require space to encase the ball, which means the ball must be very small in size. The spray pattern is dot-like, but when sprayed onto the glass it becomes columnar, and the columnar water flow covers a small area and leaves many areas uncovered, making the glass susceptible to damage when the wiper is wiped dry. Such dot-type wiper arm nozzles are relatively thick, which not only reduces the utilization rate of washer fluid, but also tends to block 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 conventional technology that the spot-type wiper arm nozzle has a small spray area and many areas are not covered, making the glass easily damaged by the dry wiping of the wiper.

[0005] In a first aspect of the present application, in order to achieve the above object, A nozzle body having a water supply port; an attachment part provided on the nozzle body, the interior of the attachment part being hollow to form an attachment chamber, the bottom of the attachment chamber being connected to the water supply port, and a first opening and a second opening being provided at both ends of the attachment part; 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 passage and a second flow passage, the first flow passage forming a first water outlet at the first opening, and the second flow passage 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 a direction approaching the first water outlet, and the second flow path gradually widens in a 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 become wider in the direction approaching the outlet, and the first flow path and the second flow path are connected to a self-excited flow path, so that the water sprayed from the two water outlets is fan-shaped and sways from side to side, and the water particles form an S-shaped uniform distribution in the fan-shaped area, which allows the water flow to be sprayed more uniformly, 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, two diversion blocks facing each other are provided inside the diversion section, a first diversion section is formed between the two diversion blocks and an inner wall of the diversion section, and a second diversion section is formed between the two diversion blocks, with the second diversion section gradually becoming wider in the direction approaching the first or second water outlet.

[0008] Preferably, 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 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 passage and the second flow passage are located on opposite sides of the flow guide plate.

[0010] Preferably, a limiting block is provided on the mounting portion, the limiting block is located below the second opening, and the limiting block abuts against 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, the first opening forming an insertion end of the mounting portion.

[0012] Preferably, the limit block is recessed to form an engagement portion, and an extension segment is provided on the flow guide plate, the extension segment being insertable 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; Provided is a wiper, which is a wiper arm nozzle as described in 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 of 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 away when the wiper arm rotates, avoiding obstructing the driver's field of vision.

[0016] A third aspect of the present invention provides a motor vehicle comprising two wipers as described in any of the above embodiments.

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

[0018] In the following, 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 are briefly introduced. It goes without saying that the drawings described below are some embodiments of the present invention, and those skilled in the art can obtain other drawings from these drawings without inventive work.

[0019] [Figure 1] FIG. 2 is a structural schematic diagram of a wiper arm nozzle provided according to an embodiment of the first aspect of the present invention. [Diagram 2] FIG. 2 is a structural schematic diagram of a nozzle body provided according to an embodiment of the present invention; [Diagram 3] FIG. 2 is a side view of a nozzle body provided in accordance with an embodiment of the present invention. [Figure 4] FIG. 2 is a structural schematic diagram of a flow guide plate provided in an embodiment of the present invention; [Diagram 5] FIG. 4 is a schematic diagram of the rear structure of another flow guide plate provided by an embodiment of the present invention; [Figure 6] FIG. 2 is a schematic diagram of the front structure 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 a wiper flash 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] FIG. 2 is a schematic view of the jet of the wiper of the present invention. [Figure 11] FIG. 4 is a flow distribution diagram of the wiper jet of the present invention. [Figure 12] FIG. 2 is a schematic diagram of the self-excited flow passage 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 Restriction 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 PREFERRED EMBODIMENTS

[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 below in a clear and complete manner with the aid of the drawings of the present invention. It goes without saying that the described embodiments are not all 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 work, they all belong to the protection scope of the present invention.

[0022] Referring to Figures 8 and 9, the conventional wiper arm nozzle adopts a dot-jet structure, and water is sprayed from the wiper arm nozzle in a columnar form with large gaps between the water columns, which may cause dry wiping during the operation of the wiper arm and damage the glass.

[0023] 1, an embodiment of the present application provides a wiper arm nozzle 100, which includes a nozzle body 110, a mounting part 120, and a flow guide plate 130. The wiper arm nozzle 100 is made of three parts, which simplifies the manufacturing process, reduces the number of parts, and reduces manufacturing 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 has a hollow interior 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 formed on both ends of the mounting part 120, and a flow guide plate 130 is inserted into the mounting chamber and a portion of the flow guide plate 130 is 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, however, 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 with a certain pressure enters the mounting chamber from the water supply port 111, and is sprayed from the first water outlet and the second water outlet via the first flow path 131 and the second flow path 132 by 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 directions of the water flows sprayed from the first water outlet and the second water outlet are opposite to each other, and the first flow path 131 is connected to the self-excited flow path 140 in the direction approaching the first water outlet, and the second flow path 132 is connected to the self-excited flow path 140 in the direction approaching the second water outlet, so that the water sprayed from the first water outlet and the second water outlet spreads in a fan shape that sways 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 to hit a larger area of ​​the glass, leaving less area uncovered, preventing the wiper from drying out and damaging the glass.

[0026] 12 and 13, in one embodiment, the self-excited flow path 140 includes a diverter section 141 provided on the guiding plate 130, and two diverter blocks 1411 facing each other are provided inside the diverter section 141, a first guiding section 1413 is formed between the two diverter blocks 1411 and the inner wall of the diverter section 141, and a second guiding section 1412 is formed between the two diverter blocks 1411, where the second guiding section 1412 gradually widens in the direction approaching the first water outlet. The two first guiding sections 1413 are located on both sides of the second guiding section 1412, and the water flowing from the two first guiding sections 1413 merges with the water flowing from the second guiding section 1412 to enter the first water outlet or the second water outlet, and is acted on by the inner wall of the first water outlet or the second water outlet to be in an alternating swaying state.

[0027] In some specific embodiments, the fan-shaped water flow from the first water outlet and the second water outlet may form an angle of 140° to 180°, so that the area covered by the water flow is increased.

[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 passage 131 and the second flow passage 132 are in close contact with the inner wall of the mounting part 120 to form the first water discharge passage and the second water discharge passage. It should be understood that the first flow passage 131 and the second flow passage 132 are groove structures on the surface of the flow guide plate 130. When the flow guide plate 130 is in close contact with the inner wall of the mounting part 120, the water flow is guided to flow through the first water discharge passage and the second water discharge passage, so that the water is uniformly sprayed from the first water discharge port and the second water discharge port, where the flow directions of the first flow passage 131 and the second flow passage 132 are opposite to each other. As a result, the water is sprayed from two directions, so the covering area is large.

[0029] 4, in one embodiment, the first flow passage 131 and the second flow passage 132 are located on the same side of the baffle plate 130. The first flow passage 131 and the second flow passage 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 passage 131 and the second flow passage 132 to enter the first flow passage 131 and the second flow passage 132, respectively, and then is sprayed from the first water outlet and the second water outlet.

[0030] 5 and 6, in another embodiment, the first flow passage 131 and the second flow passage 132 are located on both sides of the baffle plate 130. The first flow passage 131 and the second flow passage 132 each adopt two independent water supply ends, and the water flows from the two water supply ends into the first flow passage 131 and the second flow passage 132, respectively, and then sprays out from the first water outlet and the second water outlet. Compared with the case where the first flow passage 131 and the second flow passage 132 are located on the same side of the baffle plate 130, the baffle plate 130 here makes rational use of the space of the baffle plate 130, so that the structure of the baffle plate 130 is smaller.

[0031] In the present application, the first flow passage 131 or the second flow passage 132 includes two flow passage walls 133 facing each other, and the two flow passage walls 133 gradually approach each other from the first water outlet or the second water outlet toward the inside of the mounting chamber. The two flow passage walls 133 cross each other. In some specific embodiments, the first flow passage 131 and the second flow passage 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 mounted and sealed, the water flow sprayed from the first water outlet and the second water outlet becomes a flat fan-shaped due to the action of the self-excited flow passage 140, and when the water flow sways from side to side, the water particles form a uniform S-shaped distribution within the fan-shaped area, so that the sprayed water flow is more uniform.

[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. The flow guide plate 130 and the mounting part 120 are tightly fitted to prevent the flow guide plate 130 from being loosened by the action of water flow pressure when inserted into the mounting chamber, thereby affecting the spray effect. The mounting part 120 and the restriction block 123 together restrict the flow guide plate 130, so that the flow guide plate 130 is stably attached.

[0033] Furthermore, the first opening 121 is larger than the second opening 122, and the first opening 121 forms an 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, at which point 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 attached even more easily.

[0034] Furthermore, the limiting block 123 is recessed to form an engagement portion 124, which is groove-shaped, and an extension segment 134 is provided on the baffle plate 130, and the extension segment 134 can be inserted into the engagement portion 124. The extension segment 134 is tightly fitted to the mouth of the baffle plate, that is, when the extension segment 134 is inserted into the baffle plate, the extension segment 134 is in close contact with the inner wall of the baffle plate, so that when the baffle plate 130 is pressed into a predetermined position in the mounting portion 120, the water flow can be prevented from flowing out from the gap between the baffle plate 130 and the groove, and the spray effect of the nozzle can be avoided from being affected.

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

[0036] The wiper arm nozzle 100 of the present application is composed of 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 into the mounting part 120, which makes the nozzle structure compact and reduces manufacturing costs and labor costs.

[0037] As shown in FIG. 7, FIG. 10 and FIG. 11, the 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 embodiments, where the wiper arm nozzle 100 is provided on the wiper arm 210, and the first water outlet and the second water outlet face two opposite directions of the wiper arm 210, respectively. The water sprayed from the first water outlet and the second water outlet is in a swaying fan shape, and the wiper arm nozzle 100 of the wiper 200 sprays from two directions, covering a large area and spraying evenly, so that the wiper arm 210 is easy to wipe. The spray of the wiper arm nozzle 100 covers a large area and sprays evenly, so that the water does not fly far when the wiper arm 210 rotates, and the driver's field of vision is avoided from being obstructed.

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

[0039] Since the automobile has the wiper 200 of the above embodiment, the automobile has the above beneficial effects that can be achieved by the wiper 200, and detailed description 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 be limiting. Although the present invention has been described in detail with reference to the above embodiments, those skilled in the art can still modify the technical solutions described in the above embodiments, or make equivalent replacements for some technical features. These modifications or replacements do not deviate the essence of the target technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A nozzle body having 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 connected to the water supply port, and a first opening and a second opening being provided 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 passage and a second flow passage, the first flow passage forming a first water outlet at the first opening, and the second flow passage forming a second water outlet at the second opening; A wiper arm nozzle, characterized in that 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.

2. 2. The wiper arm nozzle of claim 1, wherein the self-excited flow path includes a diverting section provided on the flow guide plate, 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, wherein the second diverting section gradually becomes wider in a direction approaching the first water outlet or the second water outlet.

3. 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 an 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 to each other.

4. 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 3 , wherein the first flow passage and the second flow passage are located on both sides of the flow guide plate.

5. The wiper arm nozzle according to any one of claims 1 to 4, characterized in that a limiting block is provided on the mounting part, the limiting block is located below the second opening, and the limiting block abuts against the flow guide plate when the flow guide plate is inserted into the mounting chamber.

6. 6. The wiper arm nozzle of claim 5, wherein the first opening is larger than the second opening, the first opening forming an insertion end of the mounting portion.

7. 6. The wiper arm nozzle according to claim 5, wherein the limit block is recessed to form an engagement portion, and an extension segment is provided on the flow guide plate, the extension segment being insertable into the engagement portion.

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

9. A wiper arm; A wiper arm nozzle according to any one of claims 1 to 8, characterized in that 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 of the wiper arm.

10. A motor vehicle comprising two wipers according to claim 9.

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