Windshield wiper spray control device and vehicle

Abstract

The present invention belongs to the technical field of automotive electronic and electrical components, and specifically relates to a wiper spray control device and a vehicle. A wiper spray control device includes: a wiper motor, which is transmission-connected to the wiper; a reset ring, which is transmission-connected to the output shaft of the wiper motor; a controller, which is connected to a contact assembly, which can contact or disconnect with the reset ring; a spray assembly, which is electrically connected to the controller and connected to the wiper; at least one set of connecting parts is provided on the reset ring, which periodically contact or disconnect with the contact assembly, and the spray assembly is used to spray liquid to a target spray area in the wiper's wiping area. The purpose is to enable the wiper to run to the second wiping area to spray liquid in various scenarios when spraying washing liquid to wash the glass. This reduces the waste of washing liquid on the one hand, and prevents the wiper blade from scraping dry on the other hand, thereby extending the service life of the wiper.

Description

Technical Field

[0001] The present invention belongs to the technical field of automotive electronic and electrical components, and in particular relates to a windshield wiper spray control device and a vehicle. Background Art

[0002] A water-spraying wiper arm refers to a device in which the nozzle of the washing system is integrated and assembled on the wiper arm. During the wiping process, the nozzle moves with the wiper arm and sprays the washing liquid near the wiper blade rubber strip, which is then immediately wiped clean by the wiper, ensuring that the driver quickly has a good driving vision. Therefore, it has been favored by more and more OEMs in recent years.

[0003] However, the washer fluid sprayed by the wiper arm is not affected by air resistance and gravity, and can be sprayed all onto the windshield surface. Therefore, continuous spraying will result in excessive spraying, causing liquid accumulation near the A-pillar rubber strip, which not only causes a waste of washer fluid, but also affects the driver's vision and driving safety.

[0004] Chinese patent CN209435033U proposes a wiper motor that can control the water spraying timing of a car washing system. The wiper is positioned through structural design to achieve the purpose of controlling the water spraying timing of the car washing system. However, it can only start spraying based on the wiper reset position when traveling upward or stop spraying based on the wiper reset position when traveling downward. It is impossible to spray liquid in a specific area during the upward or downward process. In addition, the areas where washing liquid is sprayed on the windshield are inconsistent under high-speed and low-speed wiping conditions. There may be too much washing liquid in some positions on the windshield, resulting in waste, and there may be a lack of washing liquid in some positions, resulting in dry brushing of the wiper and damage to the wiper blades. Summary of the Invention

[0005] The purpose of the present invention is to provide a wiper spray control device and a vehicle to solve the problem that existing wipers are unable to spray liquid in a specific area during the upward or downward process, and the areas where washing liquid is sprayed on the windshield are inconsistent under high-speed and low-speed wiping conditions.

[0006] In order to achieve the above technical objectives, the technical solutions adopted by the present invention are as follows:

[0007] A wiper spray control device, comprising:

[0008] A wiper motor, the wiper motor being transmission-connected to the wiper;

[0009] a reset ring, the reset ring being drivingly connected to the output shaft of the wiper motor;

[0010] a controller, wherein the controller is connected to a contact assembly, and the contact assembly is capable of contacting or disconnecting with the reset ring;

[0011] a liquid spraying assembly, the liquid spraying assembly being electrically connected to the controller and connected to the wiper;

[0012] At least one group of connecting pieces is provided on the reset ring, and the connecting pieces are periodically in contact with or disconnected from the contact assembly. The liquid spraying assembly is used for spraying liquid to a target liquid spraying area in the wiping area of ​​the wiper.

[0013] Preferably, the reset ring is divided into an outer ring layer, a middle layer, and an inner ring layer from the outside to the inside; the connecting piece includes a first protrusion structure, a second protrusion structure, a third protrusion structure, and a fourth protrusion structure; the first and second protrusion structures are arranged on the outer ring layer, and the third and fourth protrusion structures are arranged on the inner ring layer. This arrangement facilitates the use of different partitions on the reset ring to respond to the wiper's spraying schemes in various scenarios.

[0014] Preferably, the wiping area includes a first wiping area, a second wiping area, and a third wiping area, wherein the second wiping area is the target liquid spraying area. This arrangement is conducive to the wiper spraying liquid in the second wiping area in various situations, thereby improving the wiping effect.

[0015] Preferably, the contact assembly includes an outer ring contact spring, a middle layer contact spring and an inner ring contact spring. The outer ring contact spring and the inner ring contact spring are connected to the controller, and the middle layer contact spring is normally grounded.

[0016] Preferably, the middle layer contact spring contacts the middle layer, and during rotation of the reset ring, the outer ring contact spring periodically contacts and separates from the first and second protrusions, and the inner ring contact spring periodically contacts and separates from the third and fourth protrusions of the inner ring. This arrangement facilitates contact and separation between the contact assembly and the reset ring, allowing the liquid spray assembly to spray liquid in the second wiping area under different operating conditions of the wiper.

[0017] Preferably, the connecting piece further comprises a fifth protrusion structure, which is arranged on the inner ring layer. In this way, when the wiper is closed, the fifth protrusion contacts the inner ring layer contact spring.

[0018] Preferably, the liquid spraying assembly includes a washing motor and a scraper arm nozzle, wherein the washing motor is connected to a washing pipeline, and the scraper arm nozzle is arranged on the wiper and communicated with the washing pipeline. This arrangement facilitates cleaning by spraying liquid.

[0019] Preferably, the system further includes a switch control module, the switch control module including a washing switch, a low-speed wiper switch, and a high-speed wiper switch, the washing switch, the low-speed wiper switch, and the high-speed wiper switch being connected to the controller, respectively. This arrangement facilitates controlling the wipers to operate at low and high speeds.

[0020] Preferably, the reset ring is fixedly connected to a fixed hook, and the output shaft of the wiper motor is drivingly connected to a motor turbine. The motor turbine has a matching hole, and the reset ring is fixedly mounted in the matching hole via the fixed hook. This arrangement allows the reset ring to rotate synchronously when the wiper motor drives the wiper blade, which facilitates the alignment of the control area of ​​the reset ring with the wiping area of ​​the wiper blade.

[0021] A vehicle comprises a vehicle body and the above-mentioned wiper spray control device, wherein the wiper spray control device is arranged on the vehicle body.

[0022] The invention adopting the above technical solution has the following advantages:

[0023] 1. In this solution, the wiper motor drives the wiper to operate at high speed or low speed, and drives the reset ring to rotate synchronously. The outer ring contact spring contacts or disconnects with the first protrusion structure and the second protrusion structure of the reset ring periodically, and regularly generates a voltage jump edge signal and a voltage signal; the inner ring contact spring contacts or disconnects with the third protrusion structure and the fourth protrusion structure of the reset ring, and regularly generates a voltage jump edge signal and a voltage signal. The controller simultaneously detects the voltage jump edge signal and the voltage signal generated on the outer ring contact spring and the inner ring contact spring through the first pin 1#PIN connected to the outer ring contact spring and the second pin 2#PIN connected to the inner ring contact spring. After processing, the washing motor is controlled to complete the liquid spraying when the wiper runs to the second wiping area in various scenarios, thereby reducing the waste of washing liquid, reducing the dry wiping of the wiper blade, and extending the service life of the wiper.

[0024] 2. In this solution, when the wiper wipes different areas at different speeds, different contact springs of the contact assembly contact different control areas on the reset ring, so that when the wiper operates in various situations, it only sprays liquid in the second wiping area. This is accomplished through a mechanical structure with low cost and higher reliability. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] The present invention can be further illustrated by the non-limiting examples given in the accompanying drawings;

[0026] Figure 1 A schematic diagram of the exploded structure of a wiper motor according to an embodiment of a wiper liquid spray control device of the present invention;

[0027] Figure 2A schematic diagram of the wiper blade envelope area of ​​an embodiment of a wiper liquid spray control device of the present invention;

[0028] Figure 3 This is a schematic diagram of the reset ring structure of an embodiment of a wiper spray control device of the present invention;

[0029] Figure 4 A schematic diagram of a turbine structure of an embodiment of a wiper spray control device according to the present invention;

[0030] Figure 5 This is a schematic diagram of the assembly of a reset ring and a turbine in an embodiment of a wiper spray control device of the present invention;

[0031] Figure 6 A schematic diagram of the wiper stop position principle of an embodiment of a wiper spray control device of the present invention;

[0032] Figure 7 A schematic diagram of the principle of the start position of the windshield wiper spraying in a low-speed upward direction according to an embodiment of the windshield wiper spraying control device of the present invention;

[0033] Figure 8 A schematic diagram showing the principle of the end position of the wiper liquid spraying in a low-speed upward direction according to an embodiment of a wiper liquid spraying control device of the present invention;

[0034] Figure 9 A schematic diagram showing the principle of the starting position of the wiper spraying liquid at a low speed downward direction according to an embodiment of a wiper spraying liquid control device of the present invention;

[0035] Figure 10 This is a schematic diagram showing the principle of the end position of the wiper liquid spraying at a low speed downward direction according to an embodiment of a wiper liquid spraying control device of the present invention;

[0036] Figure 11 A schematic diagram of the principle of the wiper liquid spraying start position when the wiper is moving upward at high speed according to an embodiment of the wiper liquid spraying control device of the present invention;

[0037] Figure 12 A schematic diagram showing the principle of the end position of the wiper liquid spraying when the wiper is moving upward at high speed according to an embodiment of the wiper liquid spraying control device of the present invention;

[0038] Figure 13 A schematic diagram showing the principle of the start position of the windshield wiper spraying at a high speed downward direction according to an embodiment of a windshield wiper spraying control device of the present invention;

[0039] Figure 14 This is a schematic diagram of the principle of the end position of the wiper high-speed downward spraying according to an embodiment of the wiper spray control device of the present invention.

[0040] The main component symbols are described as follows:

[0041] 1. Wiper motor; 11. Motor turbine; 111. Matching hole; 2. Reset ring; 21. First protrusion structure; 22. Second protrusion structure; 23. Third protrusion structure; 24. Fourth protrusion structure; 25. Fifth protrusion structure; 26. Fixed hook; 3. Wiping area; 31. First wiper area; 32. Second wiper area; 33. Third wiper area; 4. Controller; 41. Outer ring contact spring; 42. Middle layer contact spring; 43. Inner ring contact spring; 51. Washing motor; 52. Wiper arm nozzle; 53. Washing pipeline; 6. Switch control module; 61. Washing switch; 62. Low-speed wiper switch; 63. High-speed wiper switch. DETAILED DESCRIPTION

[0042] The present invention will be described in detail below with reference to the accompanying drawings and specific embodiments. It should be noted that in the drawings or descriptions, similar or identical parts are numbered the same. Implementations not shown or described in the drawings are forms known to those of ordinary skill in the art. In addition, directional terms mentioned in the embodiments, such as "upper," "lower," "top," "bottom," "left," "right," "front," and "back," are merely references to the directions in the drawings and are not intended to limit the scope of protection of the present invention.

[0043] like Figures 1 to 14 As shown, a wiper spray control device of the present invention includes a wiper motor 1, a reset ring 2, a controller 4 and a spray assembly. The wiper motor 1 is transmission-connected to the wiper, the reset ring 2 is transmission-connected to the output shaft of the wiper motor 1, and the controller 4 is electrically connected to the wiper motor 1 and the spray assembly, respectively.

[0044] like Figure 1 As shown, in this embodiment, the wiper motor 1 includes a motor cover, a motor turbine assembly, a motor reduction housing, a motor outer housing, and a motor worm assembly, wherein the motor turbine assembly includes a motor turbine 11 and a motor output shaft, and the motor worm assembly includes a motor armature and a motor worm, wherein the reset ring 2 is fixedly mounted on the motor turbine 11 of the motor turbine assembly and assembled to the inside of the motor reduction housing together with the motor turbine 11, and the motor cover is assembled to the upper part of the motor reduction housing.

[0045] like Figure 3 As shown, the reset ring 2 is divided into an outer ring layer, an intermediate layer and an inner ring layer from the outside to the inside; at least one set of connecting pieces is provided on the reset ring 2. In this embodiment, the connecting pieces are provided as a group, including 5 protrusion structures integrally formed with the reset ring 2.

[0046] There are three protrusion structures on the inner circle layer, namely the third protrusion structure 23, the fourth protrusion structure 24 and the fifth protrusion structure 25, among which the fifth protrusion structure 25 is the wiper stop area, the third protrusion structure 23 is the high-speed wiper upward spray area, and the fourth protrusion structure 24 is the high-speed wiper downward spray area; the middle layer is the ground signal layer, which is always connected to the vehicle body ground; the outer circle layer has two protrusion structures, namely the first protrusion structure 21 and the second protrusion structure 22, the first protrusion structure 21 is the low-speed wiper upward spray area, and the second protrusion structure 22 is the low-speed wiper downward spray area.

[0047] The controller 4 is connected to a contact assembly through a wiring harness, an outer circle contact spring 41, a middle layer contact spring 42 and an inner circle contact spring 43. The outer circle contact spring 41 is connected to the first pin 1#PIN on the controller 4, the inner circle contact spring 43 is connected to the second pin 2#PIN on the controller 4, and the middle layer contact spring 42 is often grounded.

[0048] The wiper motor 1 is also provided with a motor sheath, which is a self-opening mold at the wiper end. The contact assembly is arranged on the motor. The motor sheath, together with the outer circle contact spring 41, the middle layer contact spring 42, the inner circle contact spring 43, and the motor low-speed power supply terminal and the motor high-speed power supply terminal in the wiper motor 1, are integrally injection molded and connected to the vehicle body wiring harness end connection sheath through the motor end connection sheath on the wiper motor 1.

[0049] like Figure 2 As shown, the wiping area 3 of the wiper includes a first wiping area 31, a second wiping area 32 and a third wiping area 33. The second wiping area is the target spraying area. When the wiper operates under different conditions, although the contact and separation conditions between the first protrusion structure 21, the second protrusion structure 22, the third protrusion structure 23 and the fourth protrusion structure 24 and the contact component are different, they all spray liquid in the second wiping area for cleaning.

[0050] When the wiper motor 1 is working, the armature rotates, and the motor turbine 11 and the reset ring 2 fixed thereon are driven to rotate together through the motor worm. The outer ring contact spring 41 periodically contacts or disconnects with the first protrusion structure 21 and the second protrusion structure 22 of the reset ring 2, and regularly generates a voltage jump edge signal; the inner ring contact spring 43 periodically contacts or disconnects with the third protrusion structure 23 and the fourth protrusion structure 24 of the reset ring 2, and regularly generates a voltage jump edge signal. The controller 4 simultaneously detects the voltage jump edge signals generated on the outer ring contact spring 41 and the inner ring contact spring 43 through 1#PIN and 2#PIN. After processing, it controls the washing motor 51 to complete the liquid spraying when the wiper runs to the second wiping area 32 in various scenarios, thereby reducing the waste of washing liquid and reducing the situation of dry wiping of the wiper blade.

[0051] It can be understood that the multiple protrusion structures of a group of connecting parts correspond to a complete up and down operating cycle of the wiper. In other embodiments of the present application, the connecting parts can also be set to multiple groups, as long as each group of connecting parts corresponds to a complete operating cycle of the wiper.

[0052] like Figure 1 、 Figure 4 and Figure 5 As shown, further, the reset ring 2 is fixedly connected with a fixed hook 26, and the output shaft of the wiper motor 1 is transmission-connected with a motor turbine 11, and a matching hole 111 is provided on the motor turbine 11. The reset ring 2 is fixedly installed in the matching hole 111 through the fixed hook 26, so that the movement of the reset ring 2 is further matched with the movement of the wiper.

[0053] In this embodiment, the controller 4 is also connected to a switch control module 6, which includes a washing switch 61, a low-speed wiper switch 62 and a high-speed wiper switch 63. The washing switch 61, the low-speed wiper switch 62 and the high-speed wiper switch 63 are connected to different pins on the controller 4.

[0054] In this embodiment, the liquid spraying assembly includes a washing motor 51 and a wiper arm nozzle 52. The washing motor 51 is electrically connected to the controller 4, which is connected to a washing pipeline 53. The wiper arm nozzle 52 is mounted on the wiper blade and communicates with the washing pipeline 53. During wiper operation, the controller 4 simultaneously detects the voltage transition edge signals generated by the outer contact spring 41 and the inner contact spring 43 via PIN #1 and PIN #2. After processing, the controller controls the washing motor 51 to complete liquid spraying when the wiper blade reaches the second wiping zone 32 in various scenarios.

[0055] The wiper spray control device of this application has two working modes and nine working states, which are described as follows:

[0056] Wiper spraying fluid at low speed:

[0057] like Figure 6 As shown, when the wiper stops, the outer ring contact spring 41 is not in contact with the reset ring 2, the middle ring contact spring 42 is in contact with the middle layer of the reset ring 2, and the inner ring contact spring 43 is in contact with the fifth protrusion 25. When the wash switch 61 and the low-speed wiper switch 62 are turned on, the wiper starts to operate. The controller 4 simultaneously detects the connection between the outer ring contact spring 41, the inner ring contact spring 43, and the middle layer contact spring 42 to the ground through the 2#PIN and the 1#PIN, and counts the jump edge signals detected by the 1#PIN and the 2#PIN based on the current position.

[0058] like Figure 7As shown, when the washing switch 61 and the low-speed wiper switch 62 are turned on, the wiper moves upward, and after the wiper leaves the reset area, when the outer ring contact spring 41 contacts the first protruding structure 21 on the reset ring 2, the middle layer contact spring 42 contacts the middle layer of the reset ring 2, and the inner ring contact spring 43 does not contact the reset ring 2, the controller 4 detects the falling edge signal for the first time through 1#PIN, and at the same time detects a high level signal through 2#PIN, then drives the washing motor 51 to pump out the washing liquid and transmit it to the wiper arm nozzle 52 through the washing pipeline 53, and the wiper arm nozzle 52 sprays the washing liquid to the second wiping area 32 of the wiper wiping track on the windshield, and the wiper continues to work upward, and the wiper arm nozzle 52 continues to spray liquid.

[0059] like Figure 8 As shown, when the washing switch 61 and the low-speed wiper switch 62 are turned on, the wiper moves upward, and after the wiper leaves the reset area, the outer ring contact spring 41 does not contact the first protruding structure 21 on the reset ring 2, the middle layer contact spring 42 contacts the middle layer of the reset ring 2, and the inner ring contacts the inner ring of the reset ring 2, the controller 4 detects the rising edge signal for the first time through 1#PIN, and at the same time detects a low-level signal through 2#PIN, then disconnects the power supply end of the washing motor 51, the washing motor 51 stops working, the wiper arm nozzle 52 stops spraying liquid, the upward spraying action is completed, and the wiper continues to work upward.

[0060] like Figure 9 As shown, when the washing switch 61 and the low-speed wiper switch 62 are turned on, the wiper moves downward, and after the wiper leaves the reset area, the outer ring contact spring 41 contacts the second protruding structure 22 on the reset ring 2, the middle layer contact spring 42 contacts the middle layer of the reset ring 2, and the inner ring contact spring 43 does not contact the inner ring of the reset ring 2, the controller 4 detects the falling edge signal for the second time through 1#PIN and detects the high level signal through 2#PIN at the same time, then drives the washing motor 51 to pump out the washing liquid and transmits it to the wiper arm nozzle 52 through the washing pipeline 53, and the wiper arm nozzle 52 sprays the washing liquid into the second wiping area 32 within the wiper wiping track on the windshield, and the wiper continues to work downward, while the nozzle continues to spray liquid.

[0061] like Figure 10 As shown, when the washing switch 61 and the low-speed wiper switch 62 are turned on, the wiper moves downward, and after the wiper leaves the reset area, the outer ring contact spring 41 does not contact the second protruding structure 22 on the reset ring 2, the middle layer contact spring 42 contacts the middle layer of the reset ring 2, and the inner ring contacts the inner ring of the reset ring 2. The controller 4 detects the rising edge signal for the second time through 1#PIN and detects the low level signal through 2#PIN at the same time, then disconnects the power supply end of the washing motor 51, the washing motor 51 stops working, the wiper arm nozzle 52 stops spraying liquid, the upward spraying action is completed, and the wiper continues to work downward.

[0062] If the liquid is sprayed only in one cycle, when the washing switch 61 and the low-speed wiper switch 62 are disconnected and the wiper leaves the reset area, the controller 4 detects a high-level signal through PIN 1 and a falling-edge signal for the third time through PIN 2, and immediately disconnects the wiper power supply terminal to stop the wiper. Figure 6 shown.

[0063] If the spray cycle exceeds 1, then in each spray cycle, after the wiper leaves the reset area, the controller 4 detects a high level signal through 1#PIN and detects a falling edge signal for the third time through 2#PIN and then the counter is cleared. The next spray cycle starts counting again and then repeats. Figures 7 to 10 The wipers stop working until the washer switch 61 and the low-speed wiper switch 62 are disconnected.

[0064] Wiper spraying fluid at high speed:

[0065] like Figure 6 As shown, when the wiper stops, the outer ring contact spring 41 is not in contact with the reset ring 2, the middle ring contact spring 42 is in contact with the middle layer of the reset ring 2, and the inner ring contact spring 43 is in contact with the fifth protrusion 25. When the wash switch 61 and the low-speed wiper switch 62 are turned on, the wiper starts to operate. The controller 4 simultaneously detects the connection between the outer ring contact spring 41, the inner ring contact spring 43, and the middle layer contact spring 42 to the ground through the 2#PIN and the 1#PIN, and counts the jump edge signals detected by the 1#PIN and the 2#PIN based on the current position.

[0066] like Figure 11 As shown, when the washing switch 61 and the high-speed wiper switch 63 are turned on, the wiper moves upward, and after the wiper leaves the reset area, the outer ring contact spring 41 contacts the outer ring on the reset ring 2, the middle layer contact spring 42 contacts the middle layer of the reset ring 2, and the inner ring contacts the third protrusion structure 23 on the reset ring 2 of the reset ring 2, the controller 4 detects the falling edge signal for the first time through the 2#PIN, and at the same time detects the low level signal through the 1#PIN, then drives the washing motor 51 to pump out the washing liquid and transmits it to the wiper arm nozzle 52 through the washing pipeline 53, and the wiper arm nozzle 52 sprays the washing liquid to the second wiping area 32 within the wiper wiping track on the windshield, and the wiper continues to work upward, while the wiper arm nozzle 52 continues to spray liquid.

[0067] like Figure 12As shown, when the washing switch 61 is connected to the high-speed wiper switch 63, the wiper moves upward, and after the wiper leaves the reset area, the outer ring contact spring 41 does not contact the outer ring on the reset ring 2, the middle layer contact spring 42 contacts the middle layer of the reset ring 2, and the inner ring does not contact the third protrusion structure 23 on the reset ring 2. The controller 4 detects the rising edge signal for the first time through the 2#PIN and the high level signal through the 1#PIN at the same time, then disconnects the power supply end of the washing motor 51, the washing motor 51 stops working, the wiper arm nozzle 52 stops spraying liquid, the upward spraying action is completed, and the wiper continues to work upward, as shown in FIG. Figure 12 .

[0068] like Figure 13 As shown, when the washing switch 61 is connected to the high-speed wiper switch 63, the wiper moves downward, and after the wiper leaves the reset area, the outer ring contact spring 41 contacts the outer ring on the reset ring 2, the middle layer contact spring 42 contacts the middle layer of the reset ring 2, and the inner ring contacts the fourth protrusion structure 24 on the reset ring 2 of the reset ring 2. The controller 4 detects the falling edge signal for the second time through the 2#PIN and detects the low level signal through the 1#PIN at the same time, then drives the washing motor 51 to pump out the washing liquid and transmits it to the wiper arm nozzle 52 through the washing pipeline 53. The wiper arm nozzle 52 sprays the washing liquid to the second wiping area 32 within the wiper wiping track on the windshield, and the wiper continues to work downward, while the nozzle continues to spray liquid.

[0069] like Figure 14 As shown, when the washing switch 61 is connected to the high-speed wiper switch 63, the wiper moves downward, and after the wiper leaves the reset area, the outer ring contact spring 41 does not contact the outer ring on the reset ring 2, the middle layer contact spring 42 contacts the middle layer of the reset ring 2, and the inner ring does not contact the fourth protrusion structure 24 on the reset ring 2 of the reset ring 2, the controller 4 detects the rising edge signal for the second time through the 2#PIN, and at the same time detects a high level signal through the 1#PIN, then disconnects the power supply end of the washing motor 51, the washing motor 51 stops working, the wiper arm nozzle 52 stops spraying liquid, the downward spraying action is completed, and the wiper continues to work downward.

[0070] If the liquid is sprayed only in one cycle, when the washing switch 61 and the high-speed wiper switch 63 are disconnected and the wiper leaves the reset area, the controller 4 detects a high-level signal through PIN 1 and a falling edge signal for the third time through PIN 2, and immediately disconnects the wiper power supply terminal to stop the wiper. Figure 6 shown.

[0071] If the spray cycle exceeds 1, then in each spray cycle, after the wiper leaves the reset area, the controller 4 detects a high level signal through 1#PIN and detects a falling edge signal for the third time through 2#PIN and then the counter is cleared. The next spray cycle starts counting again and then repeats. Figures 11 to 14 The wipers stop working until the washer switch 61 is disconnected from the high-speed wiper switch 63.

[0072] A vehicle comprises a vehicle body and the above-mentioned wiper spray control device, wherein the wiper spray control device is arranged on the vehicle body.

[0073] The above describes in detail the wiper spray control device and vehicle provided by the present invention. The description of the specific embodiments is intended only to facilitate understanding of the method and core concepts of the present invention. It should be noted that those skilled in the art will be able to make various improvements and modifications to the present invention without departing from the principles of the present invention, and such improvements and modifications are also within the scope of protection of the claims of the present invention.

Claims

1. A wiper spray control device, characterized in that: include: A wiper motor (1), the wiper motor (1) being transmission-connected to a wiper; A reset ring (2), the reset ring (2) being drivingly connected to an output shaft of the wiper motor (1); A controller (4), the controller (4) being connected to a contact component, the contact component being capable of contacting or disconnecting with the reset ring (2); A liquid spraying assembly, the liquid spraying assembly being electrically connected to the controller (4), and the liquid spraying assembly being connected to the wiper; The reset ring (2) is provided with at least one set of connecting pieces, the connecting pieces periodically contact or disconnect with the contact assembly, and the liquid spraying assembly is used to spray liquid toward a target liquid spraying area of ​​the wiper area (3); The reset ring (2) is divided into an outer ring layer, a middle layer and an inner ring layer from the outside to the inside; the connecting piece includes a first protrusion structure (21), a second protrusion structure (22), a third protrusion structure (23) and a fourth protrusion structure (24); the first protrusion structure (21) and the second protrusion structure (22) are arranged on the outer ring layer, and the third protrusion structure (23) and the fourth protrusion structure (24) are arranged on the inner ring layer; During the same working cycle of the wiper, when the wiper is in a low-speed operation state, the controller controls the liquid spraying component to spray liquid toward the target liquid spraying area when a falling edge signal is detected on the outer ring layer and a high-level signal is detected on the inner ring layer simultaneously for the first and second times through the contact component; and controls the liquid spraying component to stop spraying liquid toward the target liquid spraying area when a rising edge signal is detected on the outer ring layer and a low-level signal is detected on the inner ring layer simultaneously for the first and second times through the contact component; When the wiper is in a high-speed running state, the controller controls the liquid spraying component to spray liquid toward the target liquid spraying area when a low-level signal is detected on the outer ring layer and a falling-edge signal is detected on the inner ring layer simultaneously for the first and second times through the contact component; and controls the liquid spraying component to stop spraying liquid toward the target liquid spraying area when a high-level signal is detected on the outer ring layer and a rising-edge signal is detected on the inner ring layer simultaneously for the first and second times through the contact component. When the contact component contacts the reset ring, the controller detects a low-level signal or a falling-edge signal; when the contact component does not contact the reset ring, the controller detects a high-level signal or a rising-edge signal.

2. The wiper spray control device according to claim 1, characterized in that: The scraping area comprises a first scraping area (31), a second scraping area (32) and a third scraping area (33), wherein the second scraping area (32) is the target liquid spraying area.

3. The wiper spray control device according to claim 1, characterized in that: The contact assembly comprises an outer ring contact spring (41), an intermediate layer contact spring (42) and an inner ring contact spring (43); the outer ring contact spring (41) and the inner ring contact spring (43) are connected to the controller (4); and the intermediate layer contact spring (42) is normally grounded.

4. The wiper spray control device according to claim 3, characterized in that: The middle layer contact spring piece (42) contacts the middle layer, and during the rotation of the reset ring (2), the outer ring contact spring piece (41) periodically contacts and separates from the first protruding structure (21) and the second protruding structure (22), and the inner ring contact spring piece (43) periodically contacts and separates from the third protruding structure (23) and the fourth protruding structure (24) of the inner ring.

5. The wiper spray control device according to claim 1, characterized in that: The connecting piece further comprises a fifth protruding structure (25), and the fifth protruding structure (25) is arranged on the inner ring layer.

6. The wiper spray control device according to claim 1, characterized in that: The liquid spraying assembly comprises a washing motor (51) and a scraper arm nozzle (52), the washing motor (51) is connected to a washing pipeline (53), and the scraper arm nozzle (52) is arranged on the wiper and communicates with the washing pipeline (53).

7. The wiper spray control device according to claim 1, characterized in that: The vehicle further comprises a switch control module (6), wherein the switch control module (6) comprises a washing switch (61), a low-speed wiper switch (62), and a high-speed wiper switch (63), and the washing switch (61), the low-speed wiper switch (62), and the high-speed wiper switch (63) are respectively connected to the controller (4).

8. The wiper spray control device according to claim 1, characterized in that: The reset ring (2) is fixedly connected to a fixing hook (26); the output shaft of the wiper motor (1) is transmission-connected to a motor turbine (11); a matching hole (111) is provided on the motor turbine (11); and the reset ring (2) is fixedly mounted in the matching hole (111) via the fixing hook (26).

9. A vehicle, characterized in that: The invention comprises a vehicle body and a wiper spray control device according to any one of claims 1 to 8, wherein the wiper spray control device is arranged on the vehicle body.

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