Automobile brake pad capable of monitoring abrasion degree in real time
By installing a resistive sensor and a bidirectional threaded rod structure on the brake pads, real-time monitoring and rapid installation of brake pad wear can be achieved, solving the safety hazards and high costs of traditional detection methods.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- QINGDAO PIONEER AUTOMOBILE BRAKE PARTS CO LTD
- Filing Date
- 2025-06-20
- Publication Date
- 2026-04-21
AI Technical Summary
Traditional brake pad wear detection methods cannot monitor wear in real time, resulting in failure to promptly remind replacement, posing a safety hazard. Furthermore, the manual installation process is complex and increases labor costs.
A resistive sensor is installed on the brake pads to monitor the wear level in real time by changing the resistance value, and a warning is issued through the vehicle's electronic control unit. At the same time, a bidirectional threaded rod and a limiting structure are used to achieve quick installation.
It enables real-time monitoring of brake pad wear, reducing installation time, lowering labor costs, and improving safety and installation efficiency.
Smart Images

Figure CN224150046U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of brake pad technology, specifically to an automotive brake pad that can monitor wear levels in real time. Background Technology
[0002] Automotive brake pads, also known as brake linings, are friction materials fixed to the brake drum or brake disc that rotates with the wheel. The friction linings and friction blocks bear external pressure and generate friction to achieve the purpose of vehicle deceleration.
[0003] Brake pads are a critical safety component of a car's braking system, and their wear directly affects braking performance and driving safety. When brake pads wear down to a certain extent, braking performance deteriorates significantly, potentially leading to increased braking distance, brake failure, and other safety accidents. According to relevant data, a high percentage of traffic accidents are caused by brake system malfunctions, with brake pad wear being a major contributing factor. Traditional brake pad wear detection methods, such as periodic manual inspections or devices that only alert drivers when the pads are worn to their limit, cannot meet the need for real-time monitoring of brake pad wear and fail to promptly remind drivers to replace them, posing a significant safety hazard.
[0004] Traditional manual adjustment may require multiple calibrations of the distance between the two sides, extending the installation time from a few minutes to tens of minutes, which significantly increases labor costs, especially in batch repair scenarios.
[0005] To address the aforementioned issues, a new type of automotive brake pad capable of real-time wear monitoring is proposed. Utility Model Content
[0006] The purpose of this invention is to provide a car brake pad that can monitor wear in real time, solving the problem that traditional manual adjustment may require multiple calibrations of the distance between the two sides, extending the installation time from a few minutes to tens of minutes, which significantly increases labor costs, especially in batch repair scenarios.
[0007] To achieve the above objectives, the present invention provides the following technical solution: a car brake pad capable of real-time monitoring of wear, comprising a mounting disc, wherein a mounting hole is provided inside the top of the mounting disc, a resistive sensor is fixedly connected to the inner wall of the opposite side of the mounting disc, and a mounting assembly is provided inside the mounting disc.
[0008] By employing the above technical solution, a resistive sensor is installed on the brake pads. As the brake pads wear down, the sensor's resistance value changes. When the wear reaches a certain level, the change in resistance triggers a warning signal. This signal is transmitted to the vehicle's electronic control unit (ECU). The ECU analyzes and processes the information to determine whether there is a malfunction or potential risk in the braking system and issues a warning.
[0009] As a further description of the above technical solution: the mounting assembly includes a brake pad, which is disposed on the inner wall of the mounting disc.
[0010] By adopting the above technical solution, braking is achieved through brake pads.
[0011] As a further description of the above technical solution: the mounting plate has an installation groove on its opposite side.
[0012] By adopting the above technical solution, the brake pads are installed through the mounting slot.
[0013] As a further description of the above technical solution: the brake pad is internally rotatably connected to a bidirectional threaded rod, and the outer ring of the front end of the bidirectional threaded rod is fixedly connected to a limit plate.
[0014] By adopting the above technical solution, the bolt and the bidirectional threaded rod are limited and controlled by the limiting plate.
[0015] As a further description of the above technical solution: both the front and rear outer rings of the bidirectional threaded rod are threaded with movable seats.
[0016] By adopting the above technical solution, the bidirectional threaded rod rotates, driving the moving seat to move.
[0017] As a further description of the above technical solution: the inner wall of the opposite side of the brake pad is provided with a sliding groove, and the sliding groove is slidably connected to the moving seat.
[0018] By adopting the above technical solution, the movable seat slides on the inner wall of the sliding groove for limit control.
[0019] As a further description of the above technical solution: a movable plate is fixedly connected to one end of the movable seat.
[0020] By adopting the above technical solution, the movable plate is moved by the movable seat.
[0021] As a further description of the above technical solution: one end of the movable plate is fixedly connected to a limiting plate, and the limiting plate is slidably connected to the mounting groove.
[0022] By adopting the above technical solution, the limiting plate is inserted into the installation slot for limiting control.
[0023] Compared with the prior art, the beneficial effects of this utility model are as follows:
[0024] This utility model provides an automotive brake pad that can monitor wear in real time. First, when the bidirectional threaded rod rotates, the two moving seats at both ends move axially through the opposite thread direction. The moving seats slide on the inner wall of the brake pad through the sliding groove. At the same time, the moving plate drives the limiting plate to slide in the mounting groove of the mounting plate, so as to realize the quick installation of the brake pad. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the overall structure of this utility model;
[0026] Figure 2 This is a schematic diagram of the mounting groove of this utility model;
[0027] Figure 3 This is a schematic diagram of the structure of the bidirectional threaded rod of this utility model.
[0028] A schematic diagram of the new structure. In the diagram: 1. Mounting plate; 2. Mounting hole; 3. Resistive sensor; 4. Brake pad; 5. Mounting groove; 6. Bidirectional threaded rod; 7. Movable seat; 8. Movable plate; 9. Sliding groove; 10. Limiting plate; 11. Limiting disc. Detailed Implementation
[0029] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.
[0030] To further understand the contents of this utility model, a detailed description of this utility model will be provided with reference to the accompanying drawings.
[0031] Reference Figures 1-3 The present invention relates to a car brake pad capable of real-time monitoring of wear, comprising a mounting disc 1, a mounting hole 2 inside the top of the mounting disc 1, a resistive sensor 3 fixedly connected to the inner wall of the opposite side of the mounting disc 1, and a mounting assembly inside the mounting disc 1.
[0032] The specific structure and connection relationships of the installation components
[0033] Brake pad installation: The mounting assembly includes brake pad 4, which is mounted on the inner wall of mounting disc 1.
[0034] Mounting slot: Mounting slot 5 is provided on the inner side of the opposite side of mounting plate 1. Connection of the bidirectional threaded rod: A bidirectional threaded rod 6 is rotatably connected inside the brake pad 4, and a limit plate 11 is fixedly connected to the outer ring of the front end of the bidirectional threaded rod 6. Connection between the movable seat and the bidirectional threaded rod: Movable seats 7 are threadedly connected to the outer rings of both ends of the bidirectional threaded rod 6. Fitting of the sliding groove and the movable seat: Sliding grooves 9 are provided on the inner wall of the opposite side of the brake pad 4, and the sliding grooves 9 are slidably connected to the movable seat 7.
[0035] Connection between the movable plate and the movable base: The movable plate 8 is fixedly connected to one end of the movable base 7.
[0036] Connection between the limiting plate, the movable plate, and the mounting groove: One end of the movable plate 8 is fixedly connected to the limiting plate 10, and the limiting plate 10 is slidably connected to the mounting groove 5.
[0037] Mounting disc and mounting holes: Mounting disc 1 can be fixed to the vehicle braking system through the mounting holes 2 on the top, providing a mounting base for the entire brake pad assembly and ensuring its stable installation in the vehicle braking system.
[0038] Resistive sensor: The resistive sensor 3, which is fixed to the inner wall of the mounting plate 1, is positioned corresponding to the wear surface of the brake pad 4. It can sense the positional changes caused by the wear of the brake pad 4 in real time. By changing its own resistance value, it converts the degree of wear into an electrical signal and transmits it to the vehicle system, thereby realizing real-time monitoring of the wear degree of the brake pad.
[0039] Bidirectional threaded rod and movable seat: The bidirectional threaded rod 6 is rotatably connected inside the brake pad 4, and the movable seat 7 is connected to the outer ring of its front and rear ends. Since the threads of the bidirectional threaded rod 6 are opposite, when the bidirectional threaded rod 6 rotates, it can drive the movable seats 7 at both ends to move axially, thereby realizing the adjustment of the position of the movable seat 7.
[0040] Sliding groove and moving seat: The sliding groove 9 opened on the inner wall of the brake pad 4 is slidably connected to the moving seat 7, which guides and limits the movement of the moving seat 7, ensuring that the moving seat 7 can slide stably along the inner wall of the brake pad 4, and also ensuring the positional accuracy of the moving seat 7 during the movement process.
[0041] Movable plate and limiting plate: A movable plate 8 is fixedly connected to the movable base 7, and a limiting plate 10 fixed at one end of the movable plate 8 is slidably connected to the mounting groove 5 of the mounting plate 1. When the movable base 7 moves, the movable plate 8 drives the limiting plate 10 to slide within the mounting groove 5, thereby realizing the installation and fixation between the brake pad 4 and the mounting plate 1. This structural design makes the installation process of the brake pad 4 more convenient. Quick installation can be achieved by rotating the bidirectional threaded rod 6, without the need for multiple calibrations of the distance on both sides, greatly shortening the installation time and reducing labor costs.
[0042] Limiting disc: The limiting disc 11, which is fixedly connected to the outer ring of the front end of the bidirectional threaded rod 6, can prevent the bidirectional threaded rod 6 from rotating excessively and ensure that the rotation of the bidirectional threaded rod 6 is within a reasonable range, thereby ensuring the stability and reliability of the entire installation structure.
[0043] Mounting slot and limiting plate: The mounting slot 5 inside the mounting plate 1 is slidably connected to the limiting plate 10, providing a track for the sliding of the limiting plate 10, and also limiting the installation position of the brake pad 4, ensuring that the brake pad 4 can be accurately installed on the inner wall of the mounting plate 1, ensuring the fitting accuracy between the brake pad and the mounting plate, and thus ensuring the working performance and testing accuracy of the entire brake pad device.
[0044] Working Principle: The mounting disc 1 is fixed to the vehicle's braking system through the top mounting hole 2. The resistive sensor 3 fixed on its inner wall corresponds to the wear surface of the brake pad 4. The brake pad 4 is installed on the inner wall of the mounting disc 1. When the bidirectional threaded rod 6 inside rotates, the opposite thread direction drives the two moving seats 7 to move axially. The moving seats 7 slide on the inner wall of the brake pad 4 through the sliding groove 9. Simultaneously, the moving plate 8 on the moving seat 7 drives the limiting plate 10 to slide within the mounting groove 5 of the mounting disc 1, thus installing the brake pad 4. When the brake pad 4 wears down, the detection end of the resistive sensor 3 senses the change in its position, causing a change in its resistance value. This change is converted into an electrical signal by the circuit and transmitted to the vehicle system, displaying the wear level in real time. When the resistance value reaches a preset threshold, an alarm is triggered. Throughout the process, the limiting plate 11 at the front end of the bidirectional threaded rod 6 prevents excessive rotation, and the cooperation between the sliding groove 9 and the mounting groove 5 ensures structural stability, thereby guaranteeing monitoring accuracy.
[0045] It should be noted that, in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, article, or apparatus.
[0046] Although embodiments of the present invention have been shown and described, it will be understood by those skilled in the art that various changes, modifications, substitutions and alterations can be made to these embodiments without departing from the principles and spirit of the present invention, the scope of which is defined by the appended claims and their equivalents.
Claims
1. A car brake pad which can monitor the degree of wear in real time, comprising a mounting disc (1), characterized in that: The mounting disc (1) is internally provided with a mounting hole (2) at the top, and is fixedly connected with a resistance sensor (3) relative to an inner wall.
2. The automobile brake pad capable of monitoring the wear degree in real time according to claim 1, characterized in that: The mounting assembly comprises a brake pad (4) arranged on the inner wall of the mounting disc (1).
3. The automobile brake pad capable of monitoring the wear degree in real time according to claim 2, characterized in that: The mounting disc (1) is internally provided with a mounting groove (5) relative to an inner wall.
4. The automobile brake pad capable of monitoring the wear degree in real time according to claim 2, characterized in that: The brake pad (4) is rotatably connected with a bidirectional threaded rod (6) internally, and the outer circle of the front end of the bidirectional threaded rod (6) is fixedly connected with a limiting disc (11).
5. The automobile brake pad capable of monitoring the wear degree in real time according to claim 4, characterized in that: The outer circles of the front and rear ends of the bidirectional threaded rod (6) are both threadedly connected with a moving seat (7).
6. The automobile brake pad capable of monitoring the wear degree in real time according to claim 2, characterized in that: The brake pad (4) is internally provided with a sliding groove (9) relative to an inner wall, and the sliding groove (9) is slidably connected with the moving seat (7).
7. The automobile brake pad capable of monitoring the wear degree in real time according to claim 5, characterized in that: One end of the moving seat (7) is fixedly connected with a moving plate (8).
8. The automobile brake pad capable of monitoring wear degree in real time according to claim 7, characterized in that: One end of the moving plate (8) is fixedly connected with a limiting plate (10), and the limiting plate (10) is slidably connected with the mounting groove (5).