Windscreen wiper system with in-place detection function and automobile

By connecting a push-button circuit breaker to an indicator light in the wiper system, timely detection of wiper blade loss is achieved, solving the problem of difficulty in detecting wiper blade loss in traditional wiper systems and improving driving safety.

CN223559619UActive Publication Date: 2025-11-18FAW VOLKSWAGEN AUTOMOTIVE CO LTD
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Patent Information

Application Number
CN202422721078.4
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2024-11-08
Publication Date
2025-11-18
Estimated Expiration
2034-11-08

AI Technical Summary

Technical Problem

The mechanical connection between the wiper blade and the wiper arm in traditional wiper systems can easily lead to the loss of the wiper blade, which is difficult to detect in time in bad weather and affects driving safety.

Method used

A push-button circuit breaker is installed at the connection between the scraper arm and the scraper blade, and an indicator light is connected to it via a conductive wire. When the scraper blade is connected to the scraper arm, the circuit breaker is open and the indicator light does not illuminate; when the scraper blade is lost, the circuit breaker is closed and the indicator light illuminates, so that the driver can notice it in time.

Benefits of technology

It improves the timeliness of drivers in detecting missing wiper blades in inclement weather, enhances driving safety, and is a minor and low-cost improvement.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses a windscreen wiper system with an in-place detection function and an automobile. The windscreen wiper system comprises a driving unit, a windscreen wiper unit and an indicating unit. The windscreen wiper unit comprises a wiper arm, a wiper blade, a connecting assembly, a pressing circuit breaker, a first electric lead and a second electric lead. The indicating unit comprises an indicating lamp and a third conductive wire; a mounting groove is formed in the scraping arm; the doctor blade is fixedly connected with a connecting piece, the connecting piece is matched with the mounting groove, and the connecting assembly is arranged between the inner wall of the mounting groove and the connecting piece; the pressing circuit breaker is installed in the installation groove, and when the connecting piece is installed in the installation groove, the connecting piece is connected with the pressing circuit breaker so that the pressing circuit breaker can be kept in an open-circuit state. When the connecting sheet is not mounted in the mounting groove, the circuit breaker is pressed to keep an on state; the first conductor wire and the second conductor wire are electrically connected with the pressing circuit breaker respectively, the first conductor wire is electrically connected with the indicator lamp, and the third conductor wire is electrically connected with the indicator lamp. According to the windscreen wiper system, the driving safety can be greatly improved.
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Description

Technical Field

[0001] This utility model relates to the technical field of automotive parts, specifically to a windshield wiper system with in-situ detection function and an automobile. Background Technology

[0002] Traditional windshield wiper systems work by having a wiper arm swing to move a wiper blade within a designated area on the windshield to remove water. The condition of the wiper system is a crucial factor affecting driving safety in rainy or snowy weather. Because the wiper blade and wiper arm are connected only by a simple mechanical structure, the connection is prone to blade loss. Furthermore, since windshield wipers are typically only used in rainy or snowy weather, it's difficult to notice whether the wiper blades are present. If a wiper blade is lost, especially in extreme weather conditions, it can impair the driver's vision, increasing the risk of traffic accidents. Utility Model Content

[0003] To address at least one of the aforementioned problems, this utility model provides a windshield wiper system with in-situ detection functionality, comprising a drive unit, a wiper unit, and an indicator unit. The wiper unit includes a wiper arm, a wiper blade, a connecting assembly, a push-button circuit breaker, a first conductive wire, and a second conductive wire. The indicator unit includes an indicator light and a third conductive wire. The drive unit is mechanically connected to the first end of the wiper arm for driving the wiper arm. A mounting groove is formed on the side of the second end of the wiper arm. A connecting piece is fixedly connected to the wiper blade, and the connecting piece matches the mounting groove. The connecting assembly is disposed between the inner wall of the mounting groove and the connecting piece for installing the connecting piece in the mounting groove. The push-button circuit breaker is installed in the mounting groove. When the connecting piece is installed in the mounting groove, the connecting piece is connected to the push-button circuit breaker, keeping the push-button circuit breaker in an open state. When the connecting piece is not installed in the mounting groove, the push-button circuit breaker remains in an open state. The first terminal of the first conductive wire and the first terminal of the second conductive wire are electrically connected to the first terminal and the second terminal of the push-button circuit breaker, respectively. The second terminal of the first conductive wire is electrically connected to the first terminal of the indicator light, and the first terminal of the third conductive wire is electrically connected to the second terminal of the indicator light.

[0004] With the above technical solution, when the wiper blade is connected to the wiper arm, pressing the circuit breaker keeps the circuit open and the indicator light does not illuminate; when the wiper blade is lost, pressing the circuit breaker keeps the circuit open and the indicator light illuminates. Drivers can promptly detect missing wiper blades while using the vehicle and install new ones in a timely manner, thus improving driving safety. The wiper system of this application represents a minor improvement over traditional wiper systems, incurring minimal additional cost, yet significantly enhancing driving safety.

[0005] Preferably, a storage slot is provided inside the scraper arm, and the extension direction of the storage slot is the same as that of the scraper arm. The storage slot is connected to the mounting slot, and both the first conductive wire and the second conductive wire are disposed in the storage slot. This technical solution, by storing the wires in the storage slot inside the scraper arm, helps to protect the wires.

[0006] Preferably, the drive unit includes a drive motor, and the second terminals of the second and third conductive wires are electrically connected to the first and second terminals of the drive motor, respectively. Through this technical solution, by connecting the wires to the terminals of the drive motor, the vehicle's power supply system can simultaneously supply power to the drive motor, the push-button circuit breaker, and the indicator light.

[0007] Preferably, the wiper unit is provided in two sets, the second end of the first conductive wire in both sets of wiper units is electrically connected to the first end of the indicator light, the second end of the second conductive wire in both sets of wiper units is electrically connected to the first end of the drive motor, and the first end of the wiper arm in both sets of wiper units is mechanically connected to the drive unit.

[0008] Preferably, a current-limiting resistor is electrically connected to the first or second conductive line. The current-limiting resistor is located inside the wiper arm. When the wiper blade is lost, pressing the circuit breaker will activate the indicator light. At this time, the current-limiting resistor will limit the current and protect the entire working circuit, which helps to extend the service life of the wiper system of this application.

[0009] Preferably, the push-button circuit breaker includes a housing, a limiting seat, a button, a moving rod, a return spring, an operating rod, two conductive rods, a positive contact, and a negative contact. The limiting seat is fixedly connected to the bottom wall inside the housing, and a limiting hole extending vertically is provided on the limiting seat. A through hole is provided on the top of the housing, and the button passes through the through hole. When the connecting piece is installed in the mounting groove, the button and the connecting piece are detachably connected. The moving rod is vertically arranged inside the housing, with its bottom end passing through the limiting hole and its top end connected to the button. The return spring is sleeved on the moving rod, with its bottom end connected to the limiting seat and its top end fixedly connected to the moving rod. Fixed connection; the operating lever is made of conductive material, horizontally set and fixedly connected to the moving lever, with first connecting contact points fixedly connected to both ends of the top surface of the operating lever; the first ends of the two conductive rods pass through the opposite sidewalls of the housing and are fixedly connected to them, and the positive and negative contacts are fixedly connected to the second ends of the two conductive rods, with the positive and negative contacts located directly above the two first connecting contact points; when the circuit breaker is pressed in the open state, the two first connecting contact points separate from the positive and negative contacts respectively; when the circuit breaker is pressed in the closed state, the two first connecting contact points abut against the positive and negative contacts respectively.

[0010] Preferably, it further includes two limiting rods and two limiting contacts; the first ends of the two limiting rods are respectively fixedly connected to the opposite side walls of the housing, and the two limiting contacts are respectively fixedly connected to the second ends of the two limiting rods, and the two limiting contacts are respectively located directly below the positive contact and the negative contact; the two ends of the operating rod are respectively located between the positive contact and the limiting contact and between the negative contact and the limiting contact, and the two ends of the bottom surface of the operating rod are respectively fixedly connected to the second connecting contact; when the circuit breaker is pressed in the open state, the two second connecting contacts abut against the two limiting contacts respectively; when the circuit breaker is pressed in the closed state, the two first connecting contacts separate from the two limiting contacts respectively.

[0011] Preferably, it also includes a curved leaf spring, which is connected to the operating lever. When the circuit breaker is pressed and in the open circuit state, the curved leaf spring is in a deformed state; when the circuit breaker is pressed and in the closed circuit state, the curved leaf spring is in a natural state.

[0012] Preferably, the connecting component includes a matching buckle and a slot; the slot is formed in the mounting groove, the buckle is fixedly connected to the connecting piece, and the buckle engages with the slot.

[0013] This application also provides a vehicle comprising a wiper system with in-situ detection function, a power supply system, and an instrument panel as described above; the power supply system is electrically connected to the second terminal of the second conductive wire and the second terminal of the third conductive wire in the wiper system, and an indicator light is installed in the instrument panel. By installing the indicator light in the instrument panel using the above technical solution, the driver can more easily detect when the indicator light is illuminated.

[0014] The present invention relates to a windshield wiper system and automobile with in-situ detection function, which has the following beneficial effects:

[0015] By incorporating a push-button circuit breaker at the connection point between the wiper arm and the wiper blade in a traditional wiper system, and connecting an indicator light to this circuit breaker, the circuit breaker is activated when the wiper blade is connected to the wiper arm, keeping it open and the indicator light off. Conversely, if a wiper blade is lost, the circuit breaker remains open, and the indicator light illuminates. This allows drivers to quickly detect a missing wiper blade and promptly install a new one, improving driving safety. Furthermore, installing the indicator light in the dashboard further enhances driver awareness when it illuminates. This wiper system represents a minor improvement over traditional wiper systems, incurring minimal additional cost, yet significantly enhancing driving safety. Attached Figure Description

[0016] To better understand the above and other objects, features, advantages, and functions of this utility model, reference can be made to the embodiments shown in the accompanying drawings. The same reference numerals in the drawings refer to the same parts. Those skilled in the art should understand that the drawings are intended to schematically illustrate preferred embodiments of this utility model and do not limit the scope of this utility model in any way; the parts in the drawings are not drawn to scale.

[0017] Figure 1 A block diagram of a windshield wiper system with in-situ detection function and a car according to an embodiment of the present invention is shown;

[0018] Figure 2 A partial structural schematic diagram of a wiper system with in-situ detection function and a wiper unit of an automobile according to an embodiment of the present invention is shown.

[0019] Figure 3 A schematic diagram of a wiper system with in-situ detection function and a push-button circuit breaker for a car, according to an embodiment of the present invention, is shown.

[0020] Explanation of reference numerals in the attached figures:

[0021] 1. Scraper arm; 2. Scraper blade; 3. Press-to-break switch; 31. Housing; 32. Limit seat; 321. Limit hole; 33. Button; 34. Moving rod; 35. Return spring; 36. Operating rod; 361. First connecting contact point; 362. Second connecting contact point; 37. Conductive rod; 371. Positive contact; 372. Negative contact; 38. Limit rod; 381. Limit contact point; 39. Curved leaf spring; 4. First conductive wire; 5. Second conductive wire; 6. Indicator light; 7. Third conductive wire; 8. Current-limiting resistor; 9. Drive motor; 10. Power supply system. Detailed Implementation

[0022] The exemplary embodiments of this disclosure are described below with reference to the accompanying drawings, including various details of the embodiments to aid understanding, and should be considered merely exemplary. Therefore, those skilled in the art will recognize that various changes and modifications can be made to the embodiments described herein without departing from the scope and spirit of this disclosure. Similarly, for clarity and brevity, descriptions of well-known functions and structures are omitted in the following description.

[0023] The term "comprising" and its variations as used herein signify open inclusion, i.e., "including but not limited to". Unless otherwise stated, the term "or" means "and / or". The term "based on" means "at least partially based on". The terms "one example embodiment" and "one embodiment" mean "at least one example embodiment". The term "another embodiment" means "at least one additional embodiment". The terms "first", "second", etc., may refer to different or the same objects. Other explicit and implicit definitions may also be included below.

[0024] To at least partially address one or more of the aforementioned problems and other potential issues, embodiments of this disclosure provide a windshield wiper system with in-situ detection functionality, comprising a drive unit, a wiper unit, and an indicator unit; the wiper unit includes a wiper arm 1, a wiper blade 2, a connecting assembly, a push-button circuit breaker 3, a first conductive wire 4, and a second conductive wire 5; the indicator unit includes an indicator light 6 and a third conductive wire 7; the drive unit is mechanically connected to the first end of the wiper arm 1 for driving the wiper arm 1 to operate; a mounting groove is provided on the side of the second end of the wiper arm 1; a connecting piece is fixedly connected to the wiper blade 2, and the connecting piece matches the mounting groove; the connecting assembly is provided with... Between the inner wall of the mounting groove and the connecting piece, the connecting piece is installed in the mounting groove; the push-button circuit breaker 3 is installed in the mounting groove. When the connecting piece is installed in the mounting groove, the connecting piece is connected to the push-button circuit breaker 3, so that the push-button circuit breaker 3 remains in the open circuit state; when the connecting piece is not installed in the mounting groove, the push-button circuit breaker 3 remains in the closed circuit state; the first end of the first conductive wire 4 and the first end of the second conductive wire 5 are electrically connected to the first end and the second end of the push-button circuit breaker 3, respectively; the second end of the first conductive wire 4 is electrically connected to the first end of the indicator light 6; and the first end of the third conductive wire 7 is electrically connected to the second end of the indicator light 6.

[0025] like Figures 1 to 3 As shown, the drive unit is mechanically connected to the first end of the scraper arm 1 and is used to drive the scraper arm 1 to run. Specifically, in some embodiments, the drive unit includes a drive motor 9, which is mechanically connected to the first end of the scraper arm 1; in other embodiments, the drive unit includes a drive motor 9 and a linkage mechanism, which are mechanically connected to each other, and the connecting mechanism is mechanically connected to the first end of the scraper arm 1.

[0026] A mounting groove is provided on the side of the second end of the scraper arm 1; a connecting piece is fixedly connected to the scraper blade 2, and the connecting piece matches the mounting groove; a connecting component is disposed between the inner wall of the mounting groove and the connecting piece, and is used to install the connecting piece in the mounting groove; specifically, in this embodiment, the connecting component includes at least one set of matching buckles and slots; the slot is opened on the mounting groove, the buckle is fixedly connected to the connecting piece, and the buckle engages with the slot.

[0027] The push-button circuit breaker 3 is installed in the mounting slot. When the connecting piece is installed in the mounting slot, the connecting piece is connected to the push-button circuit breaker 3 so that the push-button circuit breaker 3 remains in the open circuit state. When the connecting piece is not installed in the mounting slot, the push-button circuit breaker 3 remains in the closed circuit state.

[0028] In one specific embodiment, such as Figure 3 As shown, the push-button circuit breaker 3 includes a housing 31, a limit seat 32, a button 33, a moving rod 34, a return spring 35, an operating rod 36, two conductive rods 37, a positive contact 371, and a negative contact 372. The limit seat 32 is fixedly connected to the bottom wall inside the housing 31, and a limit hole 321 extending vertically is provided on the limit seat 32. A through hole is provided on the top of the housing 31, and the button 33 passes through the through hole. When the connecting piece is installed in the mounting groove, the button 33 and the connecting piece can... Disassembly and connection: The moving rod 34 is vertically installed inside the housing 31, with its bottom end passing through the limiting hole 321 and its top end connected to the button 33; the return spring 35 is sleeved on the moving rod 34, with its bottom end connected to the limiting seat 32 and its top end fixedly connected to the moving rod 34; the operating rod 36 is made of conductive material, is horizontally installed, and fixedly connected to the moving rod 34, with fixed connections at both ends of the top surface of the operating rod 36. There is a first connecting contact point 361; the first ends of the two conductive rods 37 respectively penetrate through the opposite sidewalls of the housing 31 and are fixedly connected to them, forming the two extreme ends of the press-to-break switch 3; the positive contact 371 and the negative contact 372 are respectively fixedly connected to the second ends of the two conductive rods 37, and the positive contact 371 and the negative contact 372 are respectively located directly above the two first connecting contact points 361; when the connecting piece is installed in the mounting groove, the connecting piece press button 33 moves into the housing 31, and by moving... The lever 34 drives the operating lever 36 to move downward, causing the two first contact points 361 to separate from the positive contact 371 and the negative contact 372 respectively. That is, pressing the circuit breaker 3 puts it in the open circuit state, and the return spring 35 is in the compressed state. When the scraper 2 is lost, under the action of the return spring 35, the moving lever 34 drives the operating lever 36 to move upward, causing the two first contact points 361 to abut against the positive contact 371 and the negative contact 372 respectively. Pressing the circuit breaker 3 puts it in the closed circuit state.

[0029] Preferably, the push-button circuit breaker 3 further includes two limiting rods 38 and two limiting contacts 381; the first ends of the two limiting rods 38 are respectively fixedly connected to the opposite side walls of the housing 31, and the two limiting contacts 381 are respectively fixedly connected to the second ends of the two limiting rods 38, and the two limiting contacts 381 are respectively located directly below the positive contact 371 and the negative contact 372; the two ends of the operating rod 36 are respectively located between the positive contact 371 and the limiting contact 381 and between the negative contact 372 and the limiting contact 381, and the two ends of the bottom surface of the operating rod 36 are respectively fixedly connected to the second connecting contact 362; when the push-button circuit breaker 3 is in the open circuit state, the two second connecting contact 362 abut against the two limiting contacts 381 respectively; when the push-button circuit breaker 3 is in the closed circuit state, the two first connecting contact 361 separate from the two limiting contacts 381 respectively. More preferably, the push-button circuit breaker 3 also includes a bent leaf spring 39, which is connected to the operating lever 36. When the push-button circuit breaker 3 is in the open circuit state, the bent leaf spring 39 is in the deformed state; when the push-button circuit breaker 3 is in the closed circuit state, the bent leaf spring 39 is in the natural state.

[0030] like Figure 1 As shown, the first terminal of the first conductive wire 4 and the first terminal of the second conductive wire 5 are electrically connected to the first terminal and the second terminal of the push-button circuit breaker 3, respectively. The second terminal of the first conductive wire 4 is electrically connected to the first terminal of the indicator light 6, and the first terminal of the third conductive wire 7 is electrically connected to the second terminal of the indicator light 6. Preferably, a storage slot is provided inside the scraper arm 1, the extension direction of the storage slot is the same as the extension direction of the scraper arm 1, and the storage slot is connected to the mounting slot. The first conductive wire 4 and the second conductive wire 5 are both disposed in the storage slot. More preferably, the second terminal of the second conductive wire 5 and the second terminal of the third conductive wire 7 are electrically connected to the first terminal and the second terminal of the drive motor 9, respectively.

[0031] In some embodiments, the wiper unit is provided in two sets. The second end of the first conductive wire 4 in both sets of wiper units is electrically connected to the first end of the indicator light 6. The second end of the second conductive wire 5 in both sets of wiper units is electrically connected to the first end of the drive motor 9. The first end of the wiper arm 1 in both sets of wiper units is mechanically connected to the drive unit.

[0032] In a preferred embodiment, a current-limiting resistor 8 is electrically connected to the first conductive line 4 or the second conductive line 5, and the current-limiting resistor 8 is disposed inside the scraper arm 1.

[0033] This application also provides an automobile, including a wiper system with an in-situ detection function as described above, a power supply system 10, and an instrument panel; the power supply system 10 is electrically connected to the second terminal of the second conductive wire 5 and the second terminal of the third conductive wire 7 in the wiper system, and the indicator light 6 is installed in the instrument panel.

[0034] The various embodiments of this disclosure have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or technical improvements to the embodiments in the market, or to enable others skilled in the art to understand this document.

Claims

1. A wiper system with in-situ detection function, characterized in that: It includes a drive unit, a wiper unit, and an indicator unit; the wiper unit includes a wiper arm (1), a wiper blade (2), a connecting assembly, a press-to-break switch (3), a first conductive wire (4), and a second conductive wire (5); the indicator unit includes an indicator light (6) and a third conductive wire (7); The drive unit is mechanically connected to the first end of the scraper arm (1) and is used to drive the scraper arm (1) to run; a mounting groove is provided on the side of the second end of the scraper arm (1); A connecting piece is fixedly connected to the scraper (2), and the connecting piece matches the mounting groove; The connecting component is disposed between the inner wall of the mounting groove and the connecting piece, and is used to install the connecting piece in the mounting groove; The push-button circuit breaker (3) is installed in the mounting slot. When the connecting piece is installed in the mounting slot, the connecting piece is connected to the push-button circuit breaker (3) so that the push-button circuit breaker (3) remains open. When the connecting piece is not installed in the mounting slot, the push-button circuit breaker (3) remains open. The first terminal of the first conductive wire (4) and the first terminal of the second conductive wire (5) are electrically connected to the first terminal and the second terminal of the push-button circuit breaker (3), respectively. The second terminal of the first conductive wire (4) is electrically connected to the first terminal of the indicator light (6), and the first terminal of the third conductive wire (7) is electrically connected to the second terminal of the indicator light (6).

2. A wiper system with in-situ detection function according to claim 1, characterized in that: The scraper arm (1) has a storage slot inside, and the extension direction of the storage slot is the same as that of the scraper arm (1). The storage slot is connected to the mounting slot, and the first conductive wire (4) and the second conductive wire (5) are both set in the storage slot.

3. A wiper system with in-situ detection function according to claim 2, characterized in that: The drive unit includes a drive motor (9), and the second end of the second conductive line (5) and the second end of the third conductive line (7) are electrically connected to the first end and the second end of the drive motor (9), respectively.

4. A wiper system with in-situ detection function according to claim 3, characterized in that: The wiper unit is provided in two sets. The second end of the first conductive wire (4) in both sets of wiper units is electrically connected to the first end of the indicator light (6). The second end of the second conductive wire (5) in both sets of wiper units is electrically connected to the first end of the drive motor (9). The first end of the wiper arm (1) in both sets of wiper units is mechanically connected to the drive unit.

5. A wiper system with in-situ detection function according to any one of claims 1 to 4, characterized in that: A current-limiting resistor (8) is electrically connected to the first conductive line (4) or the second conductive line (5), and the current-limiting resistor (8) is set inside the scraper arm (1).

6. A wiper system with in-situ detection function according to claim 1, characterized in that: The push-button circuit breaker (3) includes a housing (31), a limit seat (32), a button (33), a moving rod (34), a return spring (35), an operating rod (36), two conductive rods (37), a positive contact (371), and a negative contact (372); The limiting seat (32) is fixedly connected to the bottom wall inside the housing (31), and the limiting seat (32) has a limiting hole (321) extending in the vertical direction; A through hole is provided on the top of the housing (31), and the button (33) is inserted through the through hole; when the connecting piece is installed in the mounting groove, the button (33) and the connecting piece are detachably connected. The moving rod (34) is vertically installed inside the housing (31). The bottom end of the moving rod (34) is inserted into the limiting hole (321), and the top end of the moving rod (34) is connected to the button (33). The restoring spring (35) is sleeved on the moving rod (34), the bottom end of the restoring spring (35) is connected to the limiting seat (32), and the top end of the restoring spring (35) is fixedly connected to the moving rod (34); The operating lever (36) is made of conductive material. The operating lever (36) is set horizontally and is fixedly connected to the moving lever (34). The first connecting contact point (361) is fixedly connected to both ends of the top surface of the operating lever (36). The first ends of the two conductive rods (37) pass through the opposite sidewalls of the housing (31) and are fixedly connected thereto. The positive contact (371) and the negative contact (372) are fixedly connected to the second ends of the two conductive rods (37). The positive contact (371) and the negative contact (372) are located directly above the two first connecting contact points (361). When the circuit breaker (3) is pressed and is in the open circuit state, the two first connecting contact points (361) are separated from the positive contact (371) and the negative contact (372) respectively. When the circuit breaker (3) is pressed and is in the closed circuit state, the two first connecting contact points (361) abut against the positive contact (371) and the negative contact (372) respectively.

7. A wiper system with in-situ detection function according to claim 6, characterized in that: It also includes two limiting rods (38) and two limiting contacts (381); the first ends of the two limiting rods (38) are respectively fixedly connected to the opposite side walls of the housing (31), and the two limiting contacts (381) are respectively fixedly connected to the second ends of the two limiting rods (38), and the two limiting contacts (381) are respectively located directly below the positive contact (371) and the negative contact (372); the two ends of the operating rod (36) are respectively located between the positive contact (371) and the limiting contacts. Between the points (381) and between the negative contact (372) and the limit contact (381), the two ends of the bottom surface of the operating lever (36) are respectively fixedly connected to the second connecting contact (362); when the circuit breaker (3) is pressed and is in the open circuit state, the two second connecting contact points (362) abut against the two limit contacts (381) respectively; when the circuit breaker (3) is pressed and is in the closed circuit state, the two first connecting contact points (361) separate from the two limit contacts (381) respectively.

8. A wiper system with in-situ detection function according to claim 6, characterized in that: It also includes a curved leaf spring (39), which is connected to the operating lever (36). When the circuit breaker (3) is pressed and is in the open circuit state, the curved leaf spring (39) is in the deformed state; when the circuit breaker (3) is pressed and is in the closed circuit state, the curved leaf spring (39) is in the natural state.

9. A wiper system with in-situ detection function according to claim 1, characterized in that: The connecting component includes a matching buckle and a slot; the slot is formed in the mounting groove, and the buckle is fixedly connected to the connecting piece, with the buckle engaging with the slot.

10. A car, characterized in that: The wiper system includes a wiper system with in-situ detection function as described in any one of claims 1 to 9, a power supply system (10), and an instrument panel; the power supply system (10) is electrically connected to the second terminal of the second conductive wire (5) and the second terminal of the third conductive wire (7) in the wiper system, and the indicator light (6) is installed in the instrument panel.