Wiper arm nozzle

Abstract

The wiper arm nozzle comprises a carrier and an insertion piece, a water inlet pipe is arranged at one end of the carrier, a clamping groove allowing the insertion piece to be clamped in is formed in the other end of the carrier, a plurality of water outlets are formed in the edge of the same side of the insertion piece in the circumferential direction, and the water outlets communicate with the water inlet pipe; openings are formed in the positions, corresponding to the water outlets, of the carrier. The method has the effect of reducing the processing difficulty.

Description

Technical Field

[0001] The invention relates to the field of wiper nozzles, in particular to a wiper arm nozzle. Background Art

[0002] At present, with the continuous progress of the automobile industry, more and more wipers on cars are equipped with nozzles to spray washing liquid on the windshield, and then clean the windshield through the swing of the wiper. Therefore, the range of the washing liquid sprayed by the nozzle will directly affect the cleaning effect.

[0003] The existing wiper arm nozzle includes a carrier and an insert, one end of the carrier is provided with a water inlet pipe, the other end is provided with a clamping groove for inserting the insert, both sides of the insert are provided with flow channels, the water inlet pipe is connected to the flow channel, and both sides of the insert are provided with water outlets, so as to clean the windshield.

[0004] With respect to the above-mentioned related technologies, water outlets need to be provided on both sides of the insert, so both sides of the insert need to achieve high-requirement plane sealing, which leads to high processing difficulty. Summary of the invention

[0005] In order to reduce the difficulty of processing, the present application provides a wiper arm nozzle.

[0006] The wiper arm nozzle provided in the present application adopts the following technical solution:

[0007] A wiper arm nozzle comprises a carrier and an insert, wherein one end of the carrier is provided with a water inlet pipe, and the other end is provided with a snap-in groove for the insert to be inserted into, a plurality of water outlets are circumferentially provided on the same side edge of the insert, and each of the water outlets is connected to the water inlet pipe; and the carrier is provided with openings corresponding to the water outlet positions.

[0008] By adopting the above technical solution, all water outlets are opened on the same surface of the plug. Therefore, only the flatness requirement of the side of the plug where the water outlet is opened needs to be met, and other surfaces do not need too high flatness requirements. The sealing of the water outlet can be achieved after the plug is inserted into the card slot, making the injection more stable and reducing the processing difficulty.

[0009] Preferably, water inlet channels are provided on both sides of the insert and close to the water inlet pipe, one of the water inlet channels is connected to a part of the water outlets, and the other water inlet channel is connected to the remaining part of the water outlets.

[0010] By adopting the above technical solution, water inlet channels are opened on both sides of the insert, and then water is supplied to each water outlet through the two water inlet channels, so that the water flowing into each water outlet is more stable, even and sufficient.

[0011] Preferably, the water outlet includes a front nozzle, a middle nozzle and a rear nozzle, the front nozzle is a fan-shaped nozzle, and the middle nozzle and the rear nozzle are both cylindrical nozzles; an injection member for forming a vibrating diffusion injection is provided on the water inlet channel connected to the front nozzle.

[0012] By adopting the above technical solution, the water outlets of each water outlet are designed to be columnar jet and vibration diffusion, so that all the water outlets are concentrated on the same detachable plug-in piece, thereby achieving a wider coverage area of ​​the windshield.

[0013] Preferably, the insert is provided with a through hole penetrating through both sides of the insert, and two ends of the through hole are respectively connected to the water inlet channel located at a side away from the water outlet and the corresponding water outlet.

[0014] By adopting the above technical solution, the through hole transports water introduced from the water inlet channel on the side away from the water outlet to the water outlet on the other side, and the structure has high stability in transporting water.

[0015] Preferably, a plurality of filter columns are provided in the water inlet channel located on a side away from the water outlet.

[0016] By adopting the above technical solution, foreign matter can be filtered out of the water entering the water inlet channel, thereby reducing the amount of foreign matter entering the water outlet and causing blockage.

[0017] Preferably, a receiving chamber is provided on the carrier and close to the insert piece on a side where the water outlet is provided, and a heating element is installed in the receiving chamber.

[0018] By adopting the above technical solution, since ice easily condenses on the surface of the nozzle in cold foreign countries or Northeast China, resulting in the nozzle being unable to spray water, the heating element can be used to heat all the water outlets of the nozzle at the same time to melt the ice; and since all the water outlets are opened on the same side and the heating element is arranged close to this side, the heating contact area is large and the heating effect is good.

[0019] Preferably, the heating element comprises: a thermistor and an electric wire, the thermistor is installed in the accommodation chamber, one end of the electric wire is electrically connected to the thermistor, and the other end extends out of the accommodation chamber.

[0020] By adopting the above technical solution, the wire is connected to an external power source, so that the thermistor generates heat, thereby melting the ice at the water outlet of the nozzle; the reasons for using the thermistor are: first, the thermistor will maintain a certain temperature when it reaches a certain temperature and will not automatically rise to a very high temperature; second, the thermistor is small in size and is suitable for being placed in a small space.

[0021] Preferably, a thermally conductive adhesive layer is provided in the accommodation chamber, and the thermistor is located in the thermally conductive adhesive layer.

[0022] By adopting the above technical solution, when the thermistor generates heat, the heat can be transferred to the outside of the nozzle through the thermal conductive adhesive layer to melt the ice, thereby improving the heating effect.

[0023] In summary, the present application includes at least one of the following beneficial technical effects:

[0024] 1. All water outlets are opened on the same surface of the insert, so only the flatness requirement of the side of the insert where the water outlet is opened needs to be met, and other surfaces do not need too high flatness requirements, so that the water outlet can be sealed after the insert is inserted into the card slot, making the injection more stable, thereby reducing the difficulty of processing;

[0025] 2. In cold foreign countries or northeast China, the nozzle surface is easily condensed into ice, which makes the nozzle unable to spray water. Therefore, the heating element can be used to heat all the water outlets of the nozzle at the same time to melt the ice; and because all the water outlets are opened on the same side and the heating element is set close to this side, the heating contact area is large and the heating effect is good. BRIEF DESCRIPTION OF THE DRAWINGS

[0026] Figure 1 It is a schematic diagram of the structure in which the nozzle of an embodiment of the present application is fixedly installed on the wiper arm.

[0027] Figure 2 It is a schematic diagram of the overall structure of an embodiment of the present application.

[0028] Figure 3 It is a schematic diagram of the insert installation structure in the embodiment of the present application.

[0029] Figure 4 It is a schematic diagram of the insert in the embodiment of the present application from another perspective.

[0030] Figure 5 It is a schematic diagram of the installation structure of the heating element in the embodiment of the present application.

[0031] Description of reference numerals:

[0032] 1. Carrier; 11. Water inlet pipe; 12. Card slot; 13. Opening; 14. Accommodating chamber; 15. Heater; 151. Thermistor; 152. Wire; 16. Card slot; 17. Thermal adhesive layer; 2. Insert; 21. Water outlet; 211. Front nozzle; 212. Middle nozzle; 213. Rear nozzle; 22. Water inlet channel; 23. Through hole; 24. Filter column; 25. Injection element; 251. Diverter block; 252. First guide part; 253. Second guide part; 26. Diverter; 101. Wiper arm; 102. Wiper; 103. Windshield. DETAILED DESCRIPTION

[0033] The following is combined with Figure 1-5 This application is described in further detail.

[0034] The present application embodiment discloses a wiper arm nozzle. Figure 1 , Figure 2 and Figure 3 The wiper arm nozzle includes a carrier 1 and an insert 2. A water inlet pipe 11 is integrally formed at one end of the carrier 1, and a clamping groove 12 is provided at the other end. The extension direction of the water inlet pipe 11 is in the same straight line as the extension direction of the clamping groove 12; the insert 2 is clamped to the carrier 1 through the clamping groove 12, and the insert 2 and the carrier 1 are interference fit; a plurality of water outlets 21 are circumferentially provided on the same side edge of the insert 2, and each water outlet 21 is connected to the water inlet pipe 11; openings 13 are provided at positions of the carrier 1 corresponding to the water outlets 21; the nozzle is fixedly mounted on the wiper arm 101, and after water is introduced through the water inlet pipe 11, it can be sprayed from the water outlet 21 to spray water on the windshield 103, and then clean it through the wiper 102.

[0035] Reference Figure 3 and Figure 4 The water outlet 21 includes a front nozzle 211, a middle nozzle 212 and a rear nozzle 213. The front nozzle 211, the middle nozzle 212 and the rear nozzle 213 can all be fan-shaped or cylindrical, or part of them can be fan-shaped and the other part can be cylindrical. In this embodiment, the front nozzle 211 is a fan-shaped, and the middle nozzle 212 and the rear nozzle 213 are both cylindrical. Water inlet pipes 11 are provided on both sides of the insert 2 and close to the water inlet pipe 11. The water inlet pipes 11 extend in the length direction of the water inlet pipe 11 and are located on the insert. One end of the water inlet channel 22 on the side of the water outlet 21 is connected to the water inlet pipe 11, and the other end is connected to the front nozzle 211; the plug 2 is provided with a through hole 23 penetrating through both sides of the plug 2, one end of the water inlet channel 22 on the side of the plug 2 away from the water outlet 21 is connected to the water inlet pipe 11, and the other end is connected to the through hole 23, and the middle nozzle 212 and the rear nozzle 213 are both connected to the through hole 23; a plurality of filter columns 24 are arranged in the water inlet channel 22 on the side of the plug 2 away from the water outlet 21, so that water can be filtered.

[0036] An injection member 25 is provided on the water inlet channel 22 connected to the front nozzle 211, so that the water inlet channel 22 is a self-excited flow channel, and a diverter 26 is provided at a position of the water inlet channel 22 close to the front nozzle 211; the injection member 25 includes two diverter blocks 251 opposite to each other, and the two diverter blocks 251 are both arranged in the diverter 26, and a first guide portion 252 is formed between the two diverter blocks 251 and the inner wall of the diverter 26, and a second guide portion 253 is formed between the two diverter blocks 251, wherein the second guide portion 253 gradually widens in a direction close to the front nozzle 211, and the two first guide portions 252 are located on both sides of the second guide portion 253; water flowing from the two first guide portions 252 merges with water flowing from the second guide portion 253 and enters the front nozzle 211, and is ejected in a cross-swinging state under the action of the inner wall of the front nozzle 211, thereby improving the injection coverage range.

[0037] Reference Figure 2 and Figure 5 A receiving chamber 14 is provided on one side of the carrier 1. The receiving chamber 14 is located near the side of the plug 2 where the water outlet 21 is provided. The receiving chamber 14 extends to the same range as the plug 2. A heating element 15 is installed in the receiving chamber 14. The heating element 15 includes a thermistor 151 and a wire 152. The thermistor 151 is fixedly installed in the receiving chamber 14. A card slot 16 is provided on the side of the carrier 1 where the receiving chamber 14 is near the water inlet pipe 11. The wire 152 is carded in the card slot 16. One end of the wire 152 is electrically connected to the thermistor 151 and the other end extends out of the receiving chamber 14. A thermally conductive adhesive layer 17 is carded in the receiving chamber 14. The thermally conductive adhesive layer 17 extends to the entire receiving chamber 14. The thermistor 151 is located in the thermally conductive adhesive layer 17, so that the side of the plug 2 where the water outlet 21 is provided can be fully heated.

[0038] The implementation principle of a wiper arm nozzle in an embodiment of the present application is as follows: after water is introduced through the water inlet pipe 11, the water can be sprayed out from the water outlet 21 located on the same side of the insert 2 to clean the windshield 103; when the water outlet 21 is frozen in winter, the thermistor 151 is started to generate heat, and the heat is transferred to the water outlet 21 through the heat conduction effect of the thermal conductive adhesive layer 17 to melt the ice.

[0039] The above are all preferred embodiments of the present application, and the protection scope of the present application is not limited thereto. Therefore, any equivalent changes made according to the structure, shape, and principle of the present application should be included in the protection scope of the present application.

Claims

1. A wiper arm nozzle, comprising a carrier (1) and an insert (2), wherein one end of the carrier (1) is provided with a water inlet pipe (11), and the other end is provided with a snap-in groove (12) for the insert (2) to snap in, characterized in that: A plurality of water outlets (21) are provided along the circumferential direction on the same side edge of the insert (2), and each of the water outlets (21) is connected to the water inlet pipe (11); and openings (13) are provided on the carrier (1) at positions corresponding to the water outlets (21).

2. A wiper arm nozzle according to claim 1, characterized in that: Water inlet channels (22) are provided on both sides of the insert (2) and close to the water inlet pipe (11); one of the water inlet channels (22) is connected to a portion of the water outlets (21), and the other water inlet channel (22) is connected to the remaining portion of the water outlets (21).

3. A wiper arm nozzle according to claim 2, characterized in that: The water outlet (21) comprises a front nozzle (211), a middle nozzle (212) and a rear nozzle (213); the front nozzle (211) is a fan-shaped nozzle, and the middle nozzle (212) and the rear nozzle (213) are both column-shaped nozzles; and a spraying member (25) for forming a vibration diffusion spray is provided on the water inlet channel (22) connected to the front nozzle (211).

4. A wiper arm nozzle according to claim 2, characterized in that: The insert (2) is provided with a through hole (23) penetrating through both sides of the insert (2), and the two ends of the through hole (23) are respectively connected to the water inlet channel (22) located on the side away from the water outlet (21) and the corresponding water outlet (21).

5. A wiper arm nozzle according to claim 2, characterized in that: A plurality of filter columns (24) are arranged in the water inlet channel (22) located at a side away from the water outlet (21).

6. A wiper arm nozzle according to claim 1, characterized in that: A receiving chamber (14) is provided on the carrier (1) and close to the insert (2) on the side where the water outlet (21) is provided, and a heating element (15) is installed in the receiving chamber (14).

7. A wiper arm nozzle according to claim 6, characterized in that: The heating element (15) comprises: a thermistor (151) and an electric wire (152); the thermistor (151) is installed in the receiving chamber (14); one end of the electric wire (152) is electrically connected to the thermistor (151) and the other end extends out of the receiving chamber (14).

8. A wiper arm nozzle according to claim 7, characterized in that: A heat-conducting adhesive layer (17) is provided in the accommodation chamber (14), and the thermistor (151) is located in the heat-conducting adhesive layer (17).

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