Safe disc brake pad

Abstract

The utility model discloses a safe disc brake pad which comprises a back plate, a friction plate and a sensing module. The sensing module comprises a module socket, a temperature sensor, a sealing plate and three wear sensing units; the abrasion sensing unit comprises a V-shaped conducting strip, two stable sliding blocks and two tension springs. According to the safety type disc brake pad, the two tension springs are used for pulling the two stable sliding blocks, so that after the V-shaped conducting strip is abraded and broken, the V-shaped conducting strip is rapidly pulled to enter the cylindrical cavity in the corresponding side, obvious abrasion damage to an automobile brake disc is avoided, and meanwhile misjudgment caused by re-conducting connection due to contact with the brake disc is avoided; and the heights of the lower ends of the cylindrical cavities of the three mounting hole groups are sequentially reduced, so that reminding of three abrasion degrees of the friction plate can be realized, and the use safety of the brake pad is ensured.

Description

Technical Field

[0001] The utility model relates to a brake pad, in particular to a safety disc brake pad. Background Art

[0002] Brake pads are the most critical safety component in a vehicle's braking system, and their effectiveness is crucial for the vehicle's braking performance. Brake pads typically consist of a steel backing plate and a friction pad made of friction material. The pad and backing plate are bonded together by an adhesive layer and are typically also provided with a thermal insulation layer. Due to the hard contact between the pad and the brake disc during use, long-term use can lead to significant wear of the pad, reducing braking effectiveness. Furthermore, prolonged, uninterrupted braking can lead to high temperatures in the pad, which can easily cause brake failure. Promptly monitoring wear and temperature conditions can help mitigate potential risks.

[0003] The existing wear condition collection module collects wear conditions in the form of a U-shaped conductive sheet. The U-shaped conductive sheet is fixed inside the friction plate. When the bent part of the U-shaped conductive sheet is worn and broken, it indicates that it has been worn to this position. However, when using this method, even if the U-shaped conductive sheet has been worn and broken, it will still contact and wear with the brake disc during braking, and after contacting the brake disc during braking, it can still form a conductive circuit, which will cause misjudgment. Utility Model Content

[0004] The purpose of the utility model is to provide a safe disc brake pad, which can timely know the wear and temperature conditions, can cause less wear damage to the brake disc, and can also avoid misjudgment of conductive contact during braking.

[0005] In order to achieve the above-mentioned purpose of the utility model, the utility model provides a safe disc brake pad, including a back plate, a friction plate and a sensor module; the sensor module includes a module socket, a temperature sensor, a closing plate and three wear sensing units; the wear sensing unit includes a V-shaped conductive sheet, two stabilizing sliders and two tension springs; the friction plate is fixed on the lower side of the back plate, and a mounting groove is provided in the middle of the fixed side of the friction plate, and a mounting window is provided on the back plate and located at the mounting groove; the module socket is inserted into the mounting groove at the mounting window, and the closing plate is detachably covered on the mounting window; a temperature sensing groove is provided on the side of the module socket, the temperature sensor is provided in the temperature sensing groove, and the temperature sensor is provided in the temperature sensing groove. Filled with thermal conductive silicone; three mounting hole groups are provided on the module socket, each mounting hole group includes two cylindrical cavities and a V-shaped flat hole, the two ends of the V-shaped flat hole are connected to the bottom of the two cylindrical cavities, and the lower end heights of the cylindrical cavities of the three mounting hole groups decrease successively; the two tension springs and two stabilizing sliders of the wear sensing unit are movably arranged in the two cylindrical cavities of the corresponding mounting hole groups, the V-shaped conductive sheet is installed in the corresponding V-shaped flat hole, the stabilizing slider is electrically connected and fixed to the lower end of the corresponding tension spring, and the two ends of the V-shaped conductive sheet are electrically connected and fixed to the corresponding stabilizing slider; various electrode columns are provided on the top of the module socket; the temperature sensor and each tension spring are conductively connected to the corresponding electrode column.

[0006] Furthermore, a limiting groove is provided on the back plate and located at the installation window, and the closing plate can be detachably installed in the limiting groove; a storage groove for accommodating each electrode column is provided on the back of the closing plate; and a wire threading elbow is provided in communication with the closing plate.

[0007] Furthermore, a heat dissipation groove is obliquely provided on the lower side of the friction plate.

[0008] Furthermore, various reinforcement strips are distributed on the lower side of the back plate, the reinforcement strips are embedded in the friction plate, and the cross-section of the reinforcement strips is S-shaped.

[0009] The beneficial effects of the present invention are as follows: two tension springs are used to pull two stabilizing sliders, so that after the V-shaped conductive sheet is worn and broken, it is quickly pulled into the cylindrical cavity on the corresponding side, which will not cause too obvious wear damage to the automobile brake disc, and will not contact the brake disc and re-connect to cause misjudgment; the temperature measurement of the friction plate can be achieved by using the setting of thermal conductive silicone and temperature sensor; the stabilizing slider is connected between the V-shaped conductive sheet and the tension spring, so as to reduce the shaking of the end of the tension spring in the cylindrical cavity, which is more stable and firm than the direct connection between the V-shaped conductive sheet and the tension spring; the lower end height of the cylindrical cavity of the three mounting hole groups is set to decrease in sequence, so as to realize the reminder of three wear degrees of the friction plate and ensure the safety of the brake pad. BRIEF DESCRIPTION OF THE DRAWINGS

[0010] Figure 1 This is a schematic diagram of the upper side of the brake pad of the present invention;

[0011] Figure 2 This is a schematic diagram of the lower side of the brake pad of the present invention;

[0012] Figure 3 This is a schematic diagram of the lower side of the back plate of the utility model;

[0013] Figure 4 This is a schematic cross-sectional view of the sensor module installation position of the present invention;

[0014] Figure 5 This is a schematic cross-sectional structural diagram of the sensor module of the present invention;

[0015] Figure 6 This is a schematic cross-sectional view of the reinforcing strip of the present invention;

[0016] Figure 7 This is a schematic diagram of the voltage acquisition circuit structure of the utility model. DETAILED DESCRIPTION

[0017] The technical solution of the present invention will be described in detail below with reference to the accompanying drawings, but the protection scope of the present invention is not limited to the embodiments.

[0018] Example 1:

[0019] like Figure 1-6As shown, the safety disc brake pad disclosed in the utility model includes: a back plate 1, a friction plate 12 and a sensor module; the sensor module includes a module socket 5, a temperature sensor 20, a closing plate 17 and three wear sensing units; the wear sensing unit includes a V-shaped conductive sheet 15, two stabilizing sliders 24 and two tension springs 26; the friction plate 12 is fixed on the lower side of the back plate 1, and a mounting groove 22 is provided in the middle of the fixed side of the friction plate 12, and a mounting window 7 is provided on the back plate 1 and located at the mounting groove 22; the module socket 5 is inserted into the mounting groove 22 from the mounting window 7, and the closing plate 17 is detachably covered on the mounting window 7; a temperature sensing groove 27 is provided on the side of the module socket 5, the temperature sensor 20 is provided in the temperature sensing groove 27, and the temperature sensing groove 27 is filled with heat conductive Silicone 23; three mounting hole groups are provided on the module socket 5, each mounting hole group includes two cylindrical cavities 25 and a V-shaped flat hole 21, the two ends of the V-shaped flat hole 21 are connected to the bottom of the two cylindrical cavities 25, and the lower end heights of the cylindrical cavities 25 of the three mounting hole groups decrease successively; the two tension springs 26 and the two stabilizing sliders 24 of the wear sensing unit are movably arranged in the two cylindrical cavities 25 of the corresponding mounting hole groups, the V-shaped conductive sheet 15 is installed in the corresponding V-shaped flat hole 21, the stabilizing slider 24 is electrically connected and fixed to the lower end of the corresponding tension spring 26, and the two ends of the V-shaped conductive sheet 15 are electrically connected and fixed to the corresponding stabilizing slider 24; various electrode columns 11 are provided on the top of the module socket 5; the temperature sensor 20 and each tension spring 26 are conductively connected to the corresponding electrode column 11.

[0020] Two tension springs 26 are used to pull the two stabilizing sliders 24, so that after the V-shaped conductive sheet 15 is worn and broken, it is quickly pulled into the cylindrical cavity 25 on the corresponding side, which will not cause too obvious wear damage to the automobile brake disc, and will not contact the brake disc and re-connect to cause misjudgment; the setting of thermal conductive silicone 23 and temperature sensor 20 can realize the temperature measurement of friction plate 12; the stabilizing slider 24 is connected between the V-shaped conductive sheet 15 and the tension spring 26, so as to reduce the shaking of the end of the tension spring 26 in the cylindrical cavity 25, which is more stable and firm than the direct connection between the V-shaped conductive sheet 15 and the tension spring 26; the setting of the lower end height of the cylindrical cavity 25 of the three mounting hole groups decreasing in sequence can realize the three wear levels of the friction plate 12 and ensure the safety of the brake pad.

[0021] Furthermore, a limiting groove 16 is provided on the back plate 1 and located at the installation window 7, a countersunk hole 18 is provided on the closing plate 17, and a threaded hole is provided on the bottom of the limiting groove 16. The closing plate 17 is detachably installed in the limiting groove 16 by the cooperation of bolts, countersunk holes 18 and threaded holes; a storage groove 19 for accommodating each electrode column 11 is provided on the back side of the closing plate 17; and a wire threading elbow 8 is provided on the closing plate 17 to provide safety protection for the electrical connection cables.

[0022] Furthermore, a heat dissipation groove 13 is obliquely provided on the lower side of the friction plate 12, thereby facilitating heat dissipation of the friction plate 12 during braking.

[0023] Furthermore, reinforcement strips 6 are distributed on the underside of the back plate 1 and are embedded in the friction plate 12. The cross-section of the reinforcement strips 6 is S-shaped. The S-shaped reinforcement strips 6 ensure that the friction plate 12 is fully embedded in the friction plate 12 when pressed onto the back plate 1. Furthermore, the compaction density of the friction plate 12 on the curved surfaces on both sides of the reinforcement strips 6 is relatively uniform. Compared to the prior art, where the bending flange is compressed and bent, resulting in a lower compaction density of the friction plate 12 at the obstructed surface, the S-shaped reinforcement strips 6 provide a stronger connection.

[0024] Furthermore, a fixed flange 3 is provided in the middle of the rear edge of the back panel 1, and a U-shaped mounting notch 4 is provided on each fixed flange 3. A limiting bump 2 is provided on each of the left and right edges of the back panel 1. The U-shaped mounting notch 4 and the two limiting bumps 2 cooperate to achieve accurate positioning and installation of the back panel 1.

[0025] Furthermore, guide slopes 14 are provided on both the left and right side edges of the friction plate 12. The provision of the guide slopes 14 can enhance the airflow guidance of the friction plate 12 during braking.

[0026] like Figure 4 、 5As shown in FIG7 , when the safety disc brake pad disclosed in the present invention is in use, each electrode column 20 is electrically connected to the outside through an electrical connection cable passing through the threading elbow 8, wherein the temperature sensor 20 adopts a digital sensor, which is electrically connected to the electronic control host of the vehicle through the electrical connection cable, and the electrode column 11 of the wear sensing unit is electrically connected to the voltage acquisition circuit through the electrical connection cable, and then the electronic control host of the vehicle collects the voltage signal through the voltage acquisition circuit, and the voltage acquisition circuit includes a resistor R1 and a resistor R2, one end of the resistor R1 is connected to the VCC power supply, and the other end is electrically connected to one end of the resistor R2, and the other end of the resistor R2 is connected to The connection point between the resistor R1 and the resistor R2 is set as the collection point C0, and the automobile's electronic control host is connected to the collection point C0. D represents a conductive loop composed of two electrode columns 11, a V-shaped conductive sheet 15, two stabilizing sliders 24, and two tension springs 26. One end of the conductive loop is grounded, and the other end is connected to the collection point C0. If the V-shaped conductive sheet 15 is not worn off, then the C0 end obtains a voltage value. If the V-shaped conductive sheet 15 is worn off, then the C0 end obtains another voltage value. Based on this, it is possible to determine whether the V-shaped conductive sheet 15 is worn off, and thus determine the wear condition of the friction plate 12.

[0027] As described above, although the present invention has been shown and described with reference to specific preferred embodiments, it should not be interpreted as limiting the present invention itself. Various changes in form and details may be made without departing from the spirit and scope of the present invention as defined in the appended claims.

Claims

1. A safety disc brake pad, characterized by: The invention comprises a back plate (1), a friction plate (12) and a sensing module; the sensing module comprises a module socket (5), a temperature sensor (20), a closing plate (17) and three wear sensing units; the wear sensing unit comprises a V-shaped conductive plate (15), two stabilizing sliders (24) and two tension springs (26); the friction plate (12) is fixed on the lower side of the back plate (1), and a mounting groove (22) is provided in the middle of the fixed side of the friction plate (12); a mounting window (7) is provided on the back plate (1) and located at the mounting groove (22); the module socket (5) is inserted into the mounting groove (22) from the mounting window (7), and the closing plate (17) is detachably covered on the mounting window (7); a temperature sensing groove (27) is provided on the side of the module socket (5), the temperature sensor (20) is provided in the temperature sensing groove (27), and the temperature sensing groove (27) is filled with thermal conductive silica gel (23) ; Three mounting hole groups are provided on the module socket (5), each mounting hole group includes two cylindrical cavities (25) and a V-shaped flat hole (21), the two ends of the V-shaped flat hole (21) are connected to the bottom of the two cylindrical cavities (25), and the lower end heights of the cylindrical cavities (25) of the three mounting hole groups decrease in sequence; two tension springs (26) and two stabilizing sliders (24) of the wear sensing unit are movably arranged in the two cylindrical cavities (25) of the corresponding mounting hole groups, the V-shaped conductive sheet (15) is installed in the corresponding V-shaped flat hole (21), the stabilizing slider (24) is electrically connected and fixed to the lower end of the corresponding tension spring (26), and the two ends of the V-shaped conductive sheet (15) are electrically connected and fixed to the corresponding stabilizing slider (24); various electrode columns (11) are provided on the top of the module socket (5); the temperature sensor (20) and each tension spring (26) are electrically connected to the corresponding electrode column (11).

2. The safety disc brake pad according to claim 1, characterized in that: A limiting groove (16) is provided on the back plate (1) and located at the installation window (7), and the closing plate (17) is detachably installed in the limiting groove (16); a receiving groove (19) for accommodating each electrode column (11) is provided on the back of the closing plate (17); and a wire threading elbow (8) is provided on the closing plate (17) for communication.

3. The safety disc brake pad according to claim 1, characterized in that: A heat dissipation groove (13) is obliquely provided on the lower side of the friction plate (12).

4. The safety disc brake pad according to claim 1, characterized in that: Reinforcement strips (6) are distributed on the lower side of the back plate (1), the reinforcement strips (6) are embedded in the friction plate (12), and the cross section of the reinforcement strips (6) is S-shaped.

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