A wiper switch

Abstract

The utility model discloses a wiper switch, include: casing, mounting joint, shift component and FPC board, mounting joint installs one end of casing, in shift component, mounting seat installs the other end of casing, and the gear plate, the dial gear and water jet switch are in proper order and are equipped with on the rotating shaft of mounting seat, and water jet switch is located the end of rotating shaft, and exposes from the end of casing, FPC board installs in the casing, and A end of FPC board is provided with a plurality of electric contact points, and B end is provided with the PIN foot corresponding with electric contact point, and the electric contact point and PIN foot are connected through etching printed circuit between, and A end of FPC board is fixed on the gear plate, and one side of dial gear is provided with metal spring piece, and metal spring piece and A end of FPC board are electrically connected, and one side of B end is opened window and is connected with the car body control module. The utility model discloses through the flexible circuit board of bendable folding, can adapt to the wiper switch of inside space narrow, need multi -angle wiring.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts technology, specifically a windshield wiper switch. Background Technology

[0002] Windshield wipers are one of the core safety components of a car. Their function is to clear rainwater, snow, dust, and other obstructions from the windshield surface that hinder the driver's vision, ensuring clear visibility in inclement weather or complex road conditions. The wiper switch is the core control component of the wiper system, used to receive driver commands and control functions such as activating and deactivating the wipers, adjusting the wiper frequency, and spraying water. It directly affects the ease of operation and safety of the wipers.

[0003] Modern windshield wipers utilize integrated toggle switches, combining wiper control and washer function, positioned on either side of the steering wheel, and incorporating electronic control technology. The circuit design of the wiper switch is crucial for transmitting control commands, shifting gears, and system linkage. It typically uses a rigid printed circuit board (PCB) as the main control circuit board. However, PCBs are rigid and difficult to bend or fold. In scenarios like toggle switches where internal space is limited and multi-angle wiring is required, multiple PCBs must be joined together or complex connectors must be used, increasing assembly complexity and the risk of failure. Utility Model Content

[0004] The purpose of this utility model is to provide a windshield wiper switch that, through a flexible circuit board that can be bent and folded, is suitable for windshield wiper switches with limited internal space and requiring multi-angle wiring. To achieve the above objective, this utility model adopts the following technical solution: This utility model discloses a windshield wiper switch, including: a housing, a mounting connector, a shift assembly, and an FPC board. The mounting connector and the shift assembly are respectively installed at both ends of the housing, and the FPC board is installed inside the housing.

[0005] The shifting assembly includes a mounting base, a shift plate, a shift lever, and a water spray switch. The mounting base is installed inside the housing and has a rotating shaft. The shift plate, shift lever, and water spray switch are sequentially mounted on the rotating shaft. The water spray switch is located at the end of the rotating shaft and protrudes from the end of the housing.

[0006] One end of the FPC board has several electrical contact points, designated as end A, and the other end has corresponding pins, designated as end B. The electrical contact points and pins are connected by etched printed circuits. End A of the FPC board is fixed to the shift plate, and a metal spring is installed on one side of the shift, electrically connected to end A of the FPC board. End B has a window for connecting to an external vehicle body control module.

[0007] Furthermore, the A end of the FPC board is arc-shaped, and the electrical contact points are arranged in an arc-shaped interval along the A end of the FPC board.

[0008] Furthermore, a third positioning post is provided on one side of the mounting base, and a third clearance hole corresponding to the third positioning post is provided on the stop plate. The third positioning post passes through the third clearance hole to limit the stop plate.

[0009] The housing contains at least one first positioning post, and the FPC board has a corresponding first clearance hole. The first positioning post passes through the first clearance hole to limit the movement of the FPC board.

[0010] Preferably, the top of the mounting base is provided with a second positioning post, and the FPC board is provided with a corresponding second clearance hole; the second positioning post extends out from the second clearance hole to limit the movement of the FPC board.

[0011] Furthermore, the window is located on the front side of the FPC board, and a reinforcing structure is provided on the reverse side of the B end of the FPC board.

[0012] Preferably, the reinforcing structure is a polyimide film.

[0013] Preferably, the thickness of the polyimide film is 20-30 μm.

[0014] Furthermore, a spring is installed between the toggle switch and the water spray switch.

[0015] Furthermore, the housing includes an upper shell and a lower shell, the upper shell having an opening through which the shift lever protrudes, and the upper shell having several positions marked on one side of the shift lever.

[0016] After adopting the above technical solution, the present invention has the following effects: This invention replaces the traditional rigid printed circuit board (PCB) with a flexible printed circuit board (FPC), allowing it to be adapted to wiper switches with limited internal space and requiring multi-angle wiring through bending and folding. Simultaneously, the FPC board possesses excellent elasticity and fatigue resistance, absorbing continuous vibrations and impacts during vehicle operation, reducing problems such as solder joint breakage and wire detachment caused by vibration. Furthermore, given the trend towards miniaturization and intelligence in wiper switches, the FPC board is particularly suitable for automotive models integrating multiple sensors and complex control logic. Attached Figure Description

[0017] Figure 1 This is an elevation view of the present utility model.

[0018] Figure 2This is an elevation view of the internal structure of this utility model.

[0019] Figure 3 This is an elevation view of the connection between the gear shifting component and the FPC board of this utility model.

[0020] Figure 4 This is a three-dimensional structural diagram of the connection between the gear shifting component and the FPC board of this utility model.

[0021] Figure 5 for Figure 4 Exploded exploded diagram.

[0022] Figure 6 This is a three-dimensional structural diagram of the gear shifting component of this utility model.

[0023] Figure 7 This is the etching and printing circuit diagram of the FPC board in this utility model.

[0024] Figure 8 This is an etched and printed circuit diagram of the front side of the FPC board in this utility model.

[0025] Figure 9 This is a diagram of the etched and printed circuit board on the back of the FPC board in this utility model.

[0026] Figure 10 This is a front view of the FPC board in this utility model.

[0027] Figure 11 This is a back reinforcement diagram of the FPC board in this utility model.

[0028] Main component symbols: 1: Upper shell, 11: Opening, 2: Lower shell, 21: First positioning post, 3: Mounting connector, 4: Gear shifting assembly, 41: Mounting base, 411: Rotating shaft, 412: Second positioning post, 413: Third positioning post, 42: Gear plate, 421: Third clearance hole, 43: Gear shifter, 431: Metal spring, 44: Water spray switch, 5: FPC board, 51: Electrical contact point, 52: Pin, 53: First clearance hole, 54: Second clearance hole, 55: Window, 56: Reinforcing structure. Detailed Implementation

[0029] To make the objectives, technical solutions, and advantages of this utility model clearer, the present utility model will be further described in detail below with reference to the accompanying drawings and embodiments.

[0030] In the description of this utility model, it should be noted that the terms "first", "second" and "third" are used for descriptive purposes only and should not be construed as indicating or implying relative importance.

[0031] like Figures 1 to 5As shown, this utility model discloses a windshield wiper switch, including: a housing, a mounting connector 3, a shift assembly 4, and an FPC board 5. The mounting connector 3 and the shift assembly 4 are respectively installed at both ends of the housing, and the FPC board 5 is installed inside the housing.

[0032] The shift assembly 4 includes: a mounting base 41, a shift plate 42, a shift lever 43, and a water spray switch 44. The mounting base 41 is installed inside the housing and is provided with a rotating shaft 411. The shift plate 42, the shift lever 43, and the water spray switch 44 are sequentially mounted on the rotating shaft 41. The water spray switch 43 is located at the end of the rotating shaft 411 and protrudes from the end of the housing.

[0033] In this embodiment, the housing includes an upper shell 1 and a lower shell 2. The upper shell 1 is provided with an opening 11, through which a lever 43 is exposed, and the upper shell 1 has several positions marked on one side of the lever 43.

[0034] like Figures 7 to 10 As shown, one end of the FPC board 5 is provided with several electrical contact points 51, which is end A, and the other end is provided with pins 52 corresponding to the electrical contact points 51, which is end B. The electrical contact points 51 and pins 52 are connected by etched printed circuits.

[0035] Combination Figure 5 and Figure 6 As shown, end A of FPC board 5 is fixed to gear plate 42, and a metal spring 431 is installed on one side of gear shift 43. The metal spring 431 is electrically connected to end A of FPC board 5. A window 55 is provided on one side of end B and externally connected to the body control module.

[0036] In this embodiment, end A of the FPC board 5 is arc-shaped, and the electrical contact points 51 are arranged in an arc-shaped interval along end A of the FPC board 5. During use, the shift lever 43 rotates along the rotation axis 411, and is electrically connected to different electrical contact points 51 on end A of the FPC board 5 through the metal spring piece 431 to adjust the gear position.

[0037] Meanwhile, in this embodiment, a spring (not shown in the figure) is installed between the stop 43 and the water spray switch 44, so that the water spray switch 44 can be reset in time after pushing the stop 43 inward. When the water spray switch 44 pushes the stop 43 inward, the metal spring 431 on the stop 43 is electrically connected to different electrical contact points 51 on the A end of the FPC board 5 at the same time, adjusting the start and stop of the water spray.

[0038] Secondly, combining Figure 10 and Figure 11As shown, in this embodiment, the window 55 is located on the front side of the FPC board 5, and a reinforcing structure 56 is provided on the reverse side of the B end of the FPC board 5 to provide the FPC board 5 with a certain strength when an external vehicle body control module is connected. The reinforcing structure 56 is a 25 μm polyimide film. In some other embodiments, the thickness of the polyimide film can also be 20 μm or 30 μm.

[0039] In addition, in this embodiment, a third positioning post 413 is provided on one side of the mounting base 41, and a third clearance hole 421 corresponding to the third positioning post 413 is provided on the stop plate 42. The third positioning post 413 passes through the third clearance hole 421 to limit the stop plate 42.

[0040] Meanwhile, at least one first positioning post 21 is provided in the housing. In this embodiment, there is one first positioning post 21 located on the lower housing 2. The FPC board 5 is provided with a corresponding first clearance hole 53, and the first positioning post 21 passes through the first clearance hole 53 to limit the position of the FPC board 5.

[0041] Furthermore, a second positioning post 412 is provided on the top of the mounting base 41, and a corresponding second clearance hole 54 is provided on the FPC board 5. The second positioning post 412 extends out of the second clearance hole 54, which also limits the movement of the FPC board 5.

[0042] The above description is only a preferred embodiment of the present utility model. Any variations or substitutions that can be easily conceived by those skilled in the art within the technical scope disclosed in the present utility model should be included within the protection scope of the present utility model.

Claims

1. A windshield wiper switch, characterized in that, include: The housing, mounting joints, shift assembly, and FPC board are respectively installed at both ends of the housing, and the FPC board is installed inside the housing. The shifting assembly includes: a mounting base, a gear plate, a shift lever, and a water spray switch. The mounting base is installed inside the housing and is provided with a rotating shaft. The gear plate, shift lever, and water spray switch are sequentially mounted on the rotating shaft. The water spray switch is located at the end of the rotating shaft and protrudes from the end of the housing. One end of the FPC board is provided with several electrical contact points, which is end A. The other end is provided with pins corresponding to the electrical contact points, which is end B. The electrical contact points and pins are connected by etched printed circuits. End A of the FPC board is fixed to the gear plate. A metal spring is installed on one side of the gear, and the metal spring is electrically connected to end A of the FPC board. One side of end B is provided with a window and external body control module.

2. A wiper switch as described in claim 1, characterized in that: The A end of the FPC board is arc-shaped, and the electrical contact points are arranged in an arc-shaped interval along the A end of the FPC board.

3. A wiper switch as described in claim 1, characterized in that: A third positioning post is provided on one side of the mounting base, and a third clearance hole corresponding to the third positioning post is provided on the stop plate. The third positioning post passes through the third clearance hole to limit the stop plate.

4. A wiper switch as described in claim 3, characterized in that: The housing is provided with at least one first positioning post, and the FPC board is provided with a corresponding first clearance hole. The first positioning post passes through the first clearance hole to limit the position of the FPC board.

5. A wiper switch as described in claim 4, characterized in that: The top of the mounting base is provided with a second positioning post, and the FPC board is provided with a corresponding second clearance hole; the second positioning post extends out from the second clearance hole to limit the position of the FPC board.

6. A wiper switch as described in claim 1, characterized in that: The window is located on the front side of the FPC board, and a reinforcing structure is provided on the reverse side of the B end of the FPC board.

7. A wiper switch as described in claim 5, characterized in that: The reinforcing structure is a polyimide film.

8. A wiper switch as described in claim 6, characterized in that: The thickness of the polyimide film is 20-30 μm.

9. A wiper switch as described in claim 1, characterized in that: A spring is installed between the toggle switch and the water spray switch.

10. A wiper switch as described in any one of claims 1-9, characterized in that: The housing includes an upper shell and a lower shell. The upper shell has an opening, through which the shift lever protrudes, and the upper shell has several positions marked on one side of the shift lever.

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