TEMPERATURE SENSOR ASSEMBLY FOR A BRAKE DISC

Abstract

A temperature sensor assembly for a brake disc is presented. The temperature sensor assembly for a brake disc according to one embodiment of the present disclosure comprises: a front housing with a transparent window element provided on a front surface facing the brake disc; a sensor module with a sensor for measuring the temperature of the brake disc; a mount coupled to the rear of the front housing and supporting the sensor module; and a rear housing coupled to the rear of the mount, wherein the plane containing the transparent window element is arranged to be inclined at a predetermined angle to an opposite surface of the brake disc where the sensor measures the temperature.

Description

CROSS-REFERENCE TO RELATED REGISTRATION

[0001] This application claims priority over Korean patent application No. 10-2024-0056675, which was filed on April 29, 2024. BACKGROUND 1. Technical field

[0002] The present disclosure relates to a temperature sensor assembly for a brake disc and in particular to a temperature sensor assembly for a brake disc that is installed next to a brake disc of a vehicle to measure the temperature of the brake disc. 2. Description of the related facts

[0003] In general, a braking device includes a parking brake, which is commonly referred to as a handbrake or side brake, that holds the vehicle in a stopped position.

[0004] The parking brake is operated by the driver, who uses a parking lever located on one side of the driver's seat inside the vehicle. When the driver pulls the parking lever and the associated cable is pulled, the rear brake assembly connected to the cable is applied to apply braking force; conversely, when the parking lever is released and the cable is disconnected, the braking force is released.

[0005] However, since the parking brake is only activated by the driver's will when the parking lever is pulled, the vehicle can roll down, causing an unexpected accident if the driver carelessly parks the vehicle on an incline, etc., without pulling the parking lever.

[0006] Since the driver has to operate the parking lever every time the vehicle is parked or started for a journey, there is also a problem in that its use is very cumbersome, especially for women or elderly people who do not have much strength.

[0007] Therefore, an electronic parking brake system (EPB system) has recently been used, which electronically controls the operation of the parking brake and is attached to a conventional disc brake to perform the function of the parking brake.

[0008] The electronic parking brake system makes it possible to automatically apply or release the parking brake according to a simple switch operation or a control assessment of an electronic control unit (ECU) that is responsible for the overall control, even if the driver does not manually apply the parking brake.

[0009] The electronic parking brake system includes an actuator with a motor that generates braking force and an electronic control unit (ECU) to control the actuator.

[0010] The electronic control unit (ECU) contains a microcontroller (MCU), several sensor interfaces, a motor drive, and a communication module. The ECU controls the actuator according to the switch's operating status to engage or release the electronic parking brake system.

[0011] In this case, measuring the brake disc temperature can be important for the operation of the electronic parking brake system. Brake disc temperature measurement can include a method for directly measuring the brake disc surface temperature and a method for estimating the brake disc surface temperature.

[0012] Among these, in the case of directly measuring the temperature of the brake disc, the position and design of the brake disc temperature sensor assembly for installing the temperature sensor around the brake disc can be important factors in measuring the temperature of the brake disc.

[0013] In particular, the brake disc generates dust as it wears down during vehicle operation, and if the dust generated by the brake disc accumulates on the surface of the temperature sensor, it may not be easy to measure the temperature of the brake disc.

[0014] In order to accurately measure the temperature of the brake disc using the temperature sensor, it is also necessary to develop a temperature sensor setup to ensure that the temperature sensor can be stably installed around the vehicle's brake disc. SUMMARY

[0015] The present disclosure is intended to solve the above problems, and one objective of the present disclosure is to provide a temperature sensor setup for a brake disc that is capable of accurately measuring the temperature of a brake disc.

[0016] Another objective of the present disclosure is to provide a temperature sensor assembly for a brake disc which is designed in such a way that dust generated by a brake disc does not accumulate in the temperature sensor assembly while the temperature of the brake disc is being measured, so that the dust generated by the brake disc does not interfere with the temperature measurement.

[0017] Another objective of the present disclosure is to provide a temperature sensor assembly for a brake disc that can be fixed at a position next to the surface of a brake disc in order to accurately measure the temperature of the brake disc.

[0018] Another objective of the present disclosure is to provide a temperature sensor assembly with a housing assembly that can stably protect the temperature sensor without being affected by the environment inside a vehicle in which a brake disc is placed, while the temperature sensor assembly is installed next to the brake disc for measuring the temperature of the brake disc.

[0019] The functions of this disclosure are not limited to those described above, and other functions not mentioned can be clearly understood by the person skilled in the art to whom this disclosure relates from the following description.

[0020] According to one aspect of the present disclosure, a temperature sensor assembly for a brake disc is provided, comprising: a front housing with a transparent window element provided on a front surface facing the brake disc; a sensor module with a sensor for measuring the temperature of the brake disc; a mount coupled to the rear of the front housing and supporting the sensor module; and a rear housing coupled to the rear of the mount, wherein the plane containing the transparent window element is arranged to be inclined at a predetermined angle to an opposite surface of the brake disc where the sensor measures the temperature.

[0021] In this case, the transparent window element can contain an IP filter and the sensor can be an IR sensor.

[0022] A receiving groove in which the transparent window element is received can be formed on the front surface of the front housing, and the front surface of the transparent window element received in the receiving groove and the front surface of the front housing can be arranged on the same plane.

[0023] The sensor module can contain a PCB substrate and the sensor, which is mounted on a surface of the PCB substrate.

[0024] The PCB substrate can be secured in a mounting hole formed in the holder by a substrate fastening element formed on the circumference of the PCB substrate.

[0025] The bracket may include a bracket body through which the bracket hole is formed in the direction of the front housing; an extension section which is designed to project in both lateral directions on both sides of the bracket hole, wherein the extension section may have a first through-hole through which a predetermined fastening element may pass.

[0026] The front housing can be configured to have a sensor receiving space in which the sensor of the sensor module is received, and the rear end of the front housing can be configured to have an opening so that the sensor receiving space is open towards the rear of the front housing, with a coupling part for coupling the front housing to the front of the mounting hole being provided at the circumference of the opening.

[0027] The rear housing may include a rear housing body with a flat shape facing the PCB substrate; and a side wall section projecting from the rear housing body and coupled to the inner surface of the mounting hole.

[0028] In this case, an external connector extending towards the rear of the rear housing body may also be included, and the PCB substrate may be provided with a connector so that the sensor can be connected to the outside via the external connector.

[0029] In this case, a sealing element may also be included, which is provided on the outer circumference of the side wall section to seal between the inner surface of the mounting hole and the side wall section.

[0030] A second through-hole may be formed on the circumference of the rear housing body so that a predetermined coupling element can pass through to attach the rear housing to the bracket.

[0031] The axis passing through the center of the sensor can be designed to meet the axis passing through the center of the brake disc at one point, and the sensor can be arranged to be inclined in a direction towards the outside of the brake disc relative to the brake disc.

[0032] The distance from the transparent window element to a point where the axis passing through the center of the sensor meets the surface of the brake disc can be in the range of 35 mm to 40 mm, and the angle at which the axis passing through the center of the sensor is inclined to the opposite surface of the brake disc can be in the range of 20 to 30 degrees.

[0033] The bracket can be coupled to one side of a steering knuckle of a vehicle in which the temperature sensor assembly is installed.

[0034] According to a further aspect of the present disclosure, a temperature sensor assembly for a brake disc is provided, which is installed on one side of a vehicle steering knuckle next to the brake disc in order to measure the temperature of the vehicle's brake disc, wherein the temperature sensor assembly comprises: a housing with a transparent window element arranged to be inclined at a predetermined angle to the brake disc at the front; a temperature measuring sensor positioned inside the housing to measure the temperature of the brake disc through the transparent window element; and a bracket coupled to the housing to couple the housing to the steering knuckle.

[0035] In this case, the transparent window element can contain an IP filter and the sensor can be an IR sensor.

[0036] The front surface of the transparent window element and the front surface of the housing can be arranged on the same plane.

[0037] The interior of the housing, in which the temperature sensor is positioned, can be designed to have a waterproof construction.

[0038] The housing can include a front housing in which the temperature measuring sensor is positioned and the transparent window element is provided in front of the temperature measuring sensor and which is coupled to one side of the bracket, and a rear housing which is coupled to the other side of the bracket. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] The above and other problems, features, and advantages of the present invention will become clearer to the person skilled in the art by describing exemplary embodiments thereof in detail with reference to the accompanying drawings. The drawings show the following: Fig. Figure 1 is a perspective view showing a state in which a temperature sensor assembly for a brake disc according to an embodiment of the present disclosure is installed in a steering knuckle of a vehicle. Fig. Figure 2 is a perspective view of a temperature sensor assembly for a brake disc according to an embodiment of the present disclosure. Fig. Figure 3 is an expanded perspective view of a temperature sensor assembly for a brake disc according to an embodiment of the present disclosure, in a front view. Fig. Figure 4 is an expanded perspective view of a temperature sensor assembly for a brake disc according to an embodiment of the present disclosure, in a rear view. Fig. Figure 5 is a cross-sectional view along line II' in Fig. 1. Fig. Figure 6 is a side view showing a surface of a brake disc and an arrangement of a temperature sensor assembly in a state in which a temperature sensor assembly for a brake disc according to an embodiment of the present disclosure is installed in a steering knuckle. DETAILED DESCRIPTION OF EXAMPLE EXECUTIONS

[0040] Embodiments of the present disclosure are described in detail below so that the person skilled in the art, to whom the present disclosure relates, can easily implement the embodiments. The present disclosure can be implemented in many different forms and is not limited to the embodiments described herein. To ensure clarity, sections not related to the description are omitted from the accompanying drawings, and identical or similar components are designated by the same reference numerals throughout the description.

[0041] The words and terms used in the description and claims are not to be interpreted restrictively as their ordinary or literal meanings and should be interpreted as meanings and concepts consistent with the technical idea of ​​the present disclosure, according to the principle that the inventors may define terms and concepts to best describe their invention.

[0042] In the description, it is understood that terms such as "include" or "have" are intended to specify the presence of features, numbers, steps, processes, components, parts or combinations thereof described in the description and do not exclude the possibility of the presence or addition of one or more other features, numbers, steps, processes, components, parts or combinations thereof.

[0043] Fig. Figure 1 is a perspective view showing a state in which a temperature sensor assembly for a brake disc according to an embodiment of the present disclosure is installed in a steering knuckle of a vehicle.

[0044] With reference to Fig. In one embodiment of the present disclosure, the temperature sensor assembly 10 for a brake disc is installed on one side of a steering knuckle 2 to measure the surface temperature of a brake disc 1. The temperature sensor assembly 10 comprises a temperature sensor that is installed on one side of the steering knuckle 2 to measure the temperature of the brake disc 1.

[0045] The temperature sensor assembly 10 can be coupled to one side of the steering knuckle 2 by a fastening element (not shown), such as a bolt or screw, and in order to couple the temperature sensor assembly 10 to one side of the steering knuckle 2, the steering knuckle 2 can be provided with a fastening element coupling hole to which a fastening element for coupling the temperature sensor assembly 10 can be coupled.

[0046] However, to couple the temperature sensor assembly 10 with one side of the axle stub 2, a known coupling method can be used in addition to a fastening element, such as a bolt or screw.

[0047] In one embodiment of the present disclosure, with reference to Fig. 1, the temperature sensor assembly 10 is arranged such that it is inclined so that it faces a surface of the brake disc 1, so that the temperature sensor points upwards towards the opposite surface of the brake disc 1.

[0048] Additionally, as in Fig. As shown in Figure 1, a front surface 11 of the temperature sensor assembly 10, facing the brake disc 1, is designed as a plane. The front surface 11 of the temperature sensor assembly 10 is provided with a flat transparent window element 12, and a temperature sensor is arranged within the housing of the temperature sensor assembly 10 such that the surface temperature of the brake disc 1 can be measured through the transparent window element 12. In one embodiment of the present disclosure, the front surface 11 of the temperature sensor assembly 10 and the flat transparent window element 12 are manufactured such that they are placed on the same plane or arranged almost parallel to each other.

[0049] Accordingly, the temperature sensor assembly 10 for measuring the brake disc 1 can measure the temperature of the upper surface of a side facing the x-axis direction of the brake disc 1, as shown in Fig. 1 can be seen.

[0050] According to one embodiment of the present disclosure, if the direction of movement of the vehicle is the negative direction of the y-axis in Fig. 1 is the dust detached and worn from the brake disc 1, scattered from the brake disc 1 in the positive direction of the y-axis or the negative direction of the z-axis, which is the direction of gravity.

[0051] Accordingly, in one embodiment of the present disclosure, the front surface 11 of the temperature sensor assembly 10 is arranged such that it is inclined upwards with respect to the opposite surface of the brake disc 1, and the transparent window element 12 is designed as a plane. In this case, since the front surface 11 of the temperature sensor assembly 10 and the flat transparent window element 12 are arranged on the same plane, no dust accumulates on the surface of the temperature sensor assembly 10.

[0052] The following describes a detailed construction of the temperature sensor assembly 10 for a brake disc using different drawings.

[0053] Fig. Figure 2 is a perspective view of a temperature sensor assembly for a brake disc according to an embodiment of the present disclosure. Fig. Figure 3 is an expanded perspective view of a temperature sensor assembly for a brake disc according to an embodiment of the present disclosure, in a front view. Fig. Figure 4 is an expanded perspective view of a temperature sensor assembly for a brake disc according to an embodiment of the present disclosure, in a rear view. Fig. Figure 5 is a cross-sectional view along line II' in Fig. 1. The xyz coordinate system, which is used in the Fig. 2 to Fig. Figure 5 shows a coordinate system that is centered on the temperature sensor setup, in contrast to the xyz coordinate system of Fig. 1.

[0054] With reference to the Fig. 2 to Fig. 5. According to one embodiment of the present disclosure, the temperature sensor assembly 10 comprises a front housing 20, a sensor module 40, a mounting bracket 30, and a rear housing 60. In this description, when referred to in Fig. 2 to Fig. In section 5, a negative direction of the y-axis is defined as the front, and a positive direction of the y-axis is defined as the back. The front housing 20 and the rear housing 60 can be jointly defined as one housing of the temperature sensor assembly.

[0055] With reference to the Fig. 2 to Fig. 5 In the temperature sensor assembly 10 according to an embodiment of the present disclosure, the front housing 20 comprises a cylindrical front housing body 21 with a receiving groove 24 in which a transparent window element 12 can be installed on a forward-facing front surface 11, and a cylindrical side surface extending rearward from the front surface 11.

[0056] A receiving chamber 25 is formed within the cylindrical front housing body 21 to accommodate the sensor assembly 42.

[0057] In one embodiment of the present disclosure, the shape of the front housing 20 is shown as a cylindrical shape, but the shape of the front housing 20 is not limited to the cylindrical shape and can be any shape as long as the transparent window element 12 can be provided on the front surface and a space in which the sensor assembly 42 can be accommodated can be provided.

[0058] In one embodiment of the present disclosure, the front housing 20 may be made of metal or synthetic resin material, etc.

[0059] Furthermore, according to one embodiment of the present disclosure, the receiving groove 24 of the front housing 20 has a square shape and a through hole 23 is formed in the direction of the rear inside the receiving groove 24 of the front housing 20.

[0060] The transparent window element 12 can be received in and coupled to the receiving groove 24. A stepped section 13 is formed on the circumference of the transparent window element, such that the transparent window element 12 is received in and coupled to the receiving groove 24. Although not shown, an adhesive, such as an epoxy, can be applied to the circumference of the transparent window element 12, so that the transparent window element 12 can be coupled to the receiving groove 24.

[0061] The transparent window element 12 can protect the sensor assembly 42, which is located inside the front housing 20, when the sensor assembly 42 passes through the transparent window element 12 to detect the surface temperature of the brake disc 1.

[0062] In one embodiment of the present disclosure, the transparent window element 12 can have a square shape and be made of a transparent material with a predetermined thickness, for example an IR filter.

[0063] The IR filter of the transparent window element 12 can allow only a desired IR wavelength band to pass through and enter the IR sensor.

[0064] In one embodiment of the present disclosure, the transparent window element 12 is designed such that the front surface, which is exposed to the outside, is positioned on the same plane or almost parallel to the front surface 11 of the front housing 20 when it is inserted into and coupled to the receiving groove 24.

[0065] Accordingly, if dust from brake disc 1 is scattered in the positive direction of the x-axis or the negative direction of the z-axis, as shown in Fig. 2 to be seen, this does not accumulate on the front surface 11 of the front housing 20 and around the transparent window element 12.

[0066] In addition, a coupling groove 26 is formed at the rear end of the cylindrical side surface of the front housing 20.

[0067] The coupling groove 26 is a section configured such that a bracket 30, which will be described later, and the front housing 20 can be coupled together. In one embodiment of the present disclosure, the bracket 30 can be provided with a coupling projection 36 for coupling with the coupling groove 26 of the front housing 20. A detailed structure of this will be described later.

[0068] Furthermore, according to one embodiment of the present disclosure, the bracket 30 is coupled to the rear of the front housing 20.

[0069] The bracket 30 includes a bracket body 31 with a bracket hole 32, which is formed in the middle in the y-axis direction, i.e. in the front-back direction, as shown in Fig. 3 visible.

[0070] The mounting body 31 has a cylindrical shape extending in the front-to-back direction, and as shown in Fig. 2 and Fig. As shown in Figure 3, an extension section 34 is designed such that it projects in the vertical direction from the upper and lower parts of the support body 31 in the z-axis direction.

[0071] A fastening element through-hole 35 is formed through the extension section 34 in the y-axis direction. A fastening element (not shown) can pass through the fastening element through-hole 35 to couple the bracket 30 to a predetermined position in the vehicle, for example, a side of the steering knuckle 2.

[0072] Furthermore, with reference to Fig. 3, a coupling projection 36, which can be coupled to the coupling groove 26 of the front housing 20, is formed at the front end edge of the mounting hole 32.

[0073] In the present embodiment, four coupling projections 36 are formed and spaced apart along the circular end edge of the mounting hole 32.

[0074] The coupling projection 36 is designed to be coupled to the coupling groove 26 of the front housing 20 by fitting and coupling.

[0075] By designing the coupling projection 36 so that it can be coupled to the coupling groove 26 of the front housing 20 in a fitting manner as described above, the front housing 20 can be easily coupled to the bracket 30 or separated as required.

[0076] In this embodiment, to couple the rear end of the front housing 20 with the bracket 30, a coupling groove 26 is formed at the rear end of the front housing 20, and a coupling projection 36 is formed at the front edge of the bracket hole 32 to allow for a fitting coupling. However, various known coupling configurations can be used on the assembly to couple the front housing 20 with the bracket 30.

[0077] Furthermore, in one embodiment of the present disclosure, a sensor module 40 is provided to be coupled to the inner surface 38 of the mounting hole 32.

[0078] According to one embodiment of the present disclosure, the sensor module 40 can comprise a sensor assembly 42 and a PCB substrate assembly 50. The PCB substrate assembly 50 can comprise a PCB substrate 51 and a substrate mounting buffer 52 for coupling the PCB substrate 51 to the inner surface of the mounting hole 32.

[0079] With reference to Fig. 3. The sensor assembly 42 can be in a cylindrical shape and include a built-in sensor, for example an IR sensor, and a radiation element capable of emitting infrared rays forward. Since the sensor assembly 42 has a known configuration, a detailed description of it is omitted.

[0080] Furthermore, in an embodiment of the present disclosure, the sensor assembly 42 can be configured such that a connection part 43, which is formed on the back, is electrically connected to the front surface of the PCB substrate 51.

[0081] The PCB substrate 51, to which the sensor assembly 42 is coupled, can be formed in a disc shape to be inserted into the mounting hole 32, and a connecting part 54 extending towards the rear is coupled to one side of the PCB substrate 51.

[0082] The connection part 54 extends outwards from the rear housing 60 through an external connection part 64 of the rear housing 60, which will be described below, and can be electrically connected to a terminal of an external device or control (not shown) to transmit a signal detected by the sensor assembly 42 to the external device or control.

[0083] In one embodiment of the present disclosure, an annular substrate mounting buffer 52 is provided along the circumference of the PCB substrate 51 to couple the PCB substrate 51 to the inner surface of the mounting hole 32.

[0084] With reference to Fig. 4 and Fig. 5 the substrate mounting buffer 52 is designed in a circular ring shape and has a ⊏ -shaped cross-section, so that it has a receiving groove 55 on the inner surface in which the outer surface of the PCB substrate is received.

[0085] The substrate mounting buffer 52 can be made of a silicone material.

[0086] The outer circumferential surface of the substrate mounting buffer 52 can be attached in contact with the inner surface 38 of the mounting hole 32. The sensor module 40 can be inserted from the back to the front of the mounting hole 32 and thus coupled to it.

[0087] According to one embodiment of the present disclosure, the sensor module 40 can be secured by inserting it until the substrate mounting buffer 52 comes into contact with the step section 39, which is located on the front of the inner surface 38 of the mounting hole 32.

[0088] In a state where the substrate mounting buffer 52 of the sensor module 40 is inserted into the mounting hole 32 such that it is positioned adjacent to the step section 39 of the mounting hole 32, the side wall section 65 of the rear housing 60 is inserted into the mounting hole 32 and as shown in Fig. 5 shown coupled, which allows the sensor module 40 to be stably attached within the mounting hole 32.

[0089] In particular, according to one embodiment of the present disclosure, the rear housing 60 is coupled to the bracket 30 in order to secure the sensor module 40 within the mounting hole 32 of the bracket 30.

[0090] The rear housing 60 includes a rear housing body 61 with a flat shape facing the PCB substrate 51, and a side wall section 65 that projects from the rear housing body 61 and is coupled to the inner surface 38 of the mounting hole 32.

[0091] The rear housing body 61 includes a bottom section 67 which is formed in a disk shape, and a rib 68 for increasing stiffness can be formed in a grid shape on the bottom section 67.

[0092] A through-hole 63 of the rear housing, through which a coupling element 70 passes in order to couple the rear housing body 61 with the bracket 30, can be formed on the circumference of the rear housing body 61.

[0093] Furthermore, a fastening element coupling groove 37, with which the coupling element 70 can be coupled, is formed on the circumference of the mounting body of the bracket 30 such that it is open towards the rear. Accordingly, the rear housing 60 can be firmly coupled to the bracket 30 using the coupling element 70.

[0094] Furthermore, according to one embodiment of the present disclosure, a side wall section 65 is configured such that it projects onto a surface of the rear housing body 61 facing the front. The side wall section 65 is configured as a cylindrical wall section, and a sealing element insertion groove 69 is formed on the outer surface of the side wall section such that the annular sealing element 66 is inserted and secured.

[0095] The sealing element 66 is inserted into the sealing element insertion groove 69, and the side wall section 65 is fitted into the inner surface of the mounting hole 32, thereby sealing the space between the rear housing 60 and the inner surface 38 of the mounting hole 32.

[0096] Furthermore, the rear housing body 61 has an external connector 64, which is configured to project on one side of its rear surface, allowing the connector 54 formed on the PCB substrate 51 to penetrate and project outwards. Accordingly, the rear end of the connector 54 can be configured to project towards the inside of the external connector 64.

[0097] According to one embodiment of the present disclosure, the coupling groove 26 of the front housing 20 is coupled to the coupling projection 36, which is formed in front of the mounting hole 32 of the mounting 30.

[0098] Additionally, the rear housing 60 is secured by a coupling element 70 after the side wall section 65 of the rear housing 60 has been inserted into the mounting hole 32 from the rear of the bracket 30.

[0099] Accordingly, the front housing 20 and the rear housing 60 can be firmly coupled to the bracket 30.

[0100] The receiving chamber 25 inside the front housing 20 is designed so that the sensor assembly 42 of the sensor module 40 can be located therein in order to measure the temperature of the brake disc 1 through the transparent window element 12, which is provided on the front surface of the front housing 20.

[0101] In the temperature sensor assembly 10 according to an embodiment of the present disclosure, the front housing 20, in which the sensor assembly 42 is arranged, can be coupled to the holder 30 in a simple assembly.

[0102] Additionally, the sensor module 40, which contains the PCB substrate 51 in which the sensor assembly 42 is installed, is attached between the front housing 20 and the rear housing 60 within the mounting hole 32, making the arrangement simple and allowing the interior to be protected to be waterproof.

[0103] Fig. Figure 6 is a side view showing a surface of a brake disc and an arrangement of a temperature sensor assembly in a state in which a temperature sensor assembly for a brake disc according to an embodiment of the present disclosure is installed in a steering knuckle.

[0104] In the temperature sensor assembly 10 according to an embodiment of the present disclosure, in order to measure the surface temperature of the brake disc 1, as described in Fig.Figure 6 shows an angle (α) formed by a plane containing the surface of the brake disc 1 and a plane containing the front surface 11 of the temperature sensor assembly 10 (an angle in which the axis (C2) passing through the center of the sensor is inclined to the opposite surface of the circular brake disc with a central axis of (C1)), within a predetermined angular range, for example 20 degrees to 30 degrees.

[0105] In this case, the angle formed by the plane containing the surface of the brake disc 1 and the plane containing the front surface 11 of the temperature sensor assembly 10 can preferably be about 26 degrees.

[0106] Additionally, a distance (L1) by which the front surface of the transparent window element 12 of the temperature sensor assembly is spaced from the temperature measuring point 3 of the brake disc 1 (or a distance from the front surface of the transparent window element 12 of the temperature sensor assembly to the surface of the brake disc on the axis (C2) passing through the center of the sensor) can be in the range of 35 mm to 40 mm, preferably about 37 mm.

[0107] The inclined angle and the spacing of the temperature sensor assembly 10 in relation to the brake disc 1 can vary depending on the performance of the infrared sensor, the position of the brake disc on which the temperature sensor assembly must be installed, and the vehicle interior design.

[0108] According to the above configuration, the temperature sensor assembly for a brake disc according to an embodiment of the present disclosure can accurately measure the temperature of the brake disc by placing it near the brake disc, so that dust generated by wear of the brake disc does not accumulate in the temperature sensor assembly for the brake disc.

[0109] In the temperature sensor assembly for a brake disc according to an embodiment of the present disclosure, the temperature sensor of the brake disc is installed inside the housing of the waterproof assembly, so that the temperature sensor can be safely protected from the external environment.

[0110] The temperature sensor assembly for a brake disc according to an embodiment of the present disclosure can be easily installed by coupling it to a side of a steering knuckle of a vehicle next to the brake disc of the vehicle using a bracket that is coupled to the housing.

[0111] The temperature sensor assembly for a brake disc according to an embodiment of the present disclosure is designed such that the front housing and the rear housing are coupled to the bracket by a mounting hole formed in the center of the bracket, so that it can be manufactured and assembled in a simple structure.

[0112] The temperature sensor assembly for a brake disc according to an embodiment of the present disclosure can directly and accurately measure the surface temperature of the brake disc, since the sensor is located inside the front housing of the temperature sensor assembly and the sensor is arranged next to the transparent window element formed on the front surface of the front housing in order to measure the temperature of the brake disc.

[0113] It is understood that the effects of the present disclosure are not limited to the effects described above and include all effects that can be derived from a configuration of the invention described in detailed descriptions or claims of the present disclosure.

[0114] Although embodiments of the present disclosure have been described, the basic concept of the present disclosure is not limited by the embodiments described in the description. The average person skilled in the art, who understands the basic concept of the present disclosure, will be able to easily propose other embodiments by adding, modifying, deleting, or adding components within the scope of the same basic concept, but this will also be within the scope of the basic concept of the present disclosure. QUOTES INCLUDED IN THE DESCRIPTION

[0000] This list of documents cited by the applicant was automatically generated and is included solely for the reader's convenience. The list is not part of the German patent or utility model application. The DPMA accepts no liability for any errors or omissions. Cited patent literature

[0000] KR 10-2024-0056675

[0001]

Claims

[1] Temperature sensor assembly for a brake disc, comprising: a front housing with a transparent window element provided on a front surface facing the brake disc; a sensor module with a sensor for measuring the temperature of the brake disc; a bracket that is coupled to the rear of the front housing and supports the sensor module; and a rear housing that is coupled to the back of the bracket, wherein the plane containing the transparent window element is arranged such that it is inclined at a predetermined angle to an opposite surface of the brake disc where the sensor measures the temperature. [2] Temperature sensor assembly for a brake disc according to claim 1, wherein the transparent window element contains an IP filter and the sensor is an IR sensor. [3] Temperature sensor assembly for a brake disc according to claim 1 or 2, wherein a receiving groove in which the transparent window element is received is formed on the front surface of the front housing and the front surface of the transparent window element received in the receiving groove and the front surface of the front housing are arranged on the same plane. [4] Temperature sensor assembly for a brake disc according to one or more of claims 1 to 3, wherein the sensor module comprises: a PCB substrate, and the sensor, which is attached to a surface of the PCB substrate. [5] Temperature sensor assembly for a brake disc according to claim 4, wherein the PCB substrate is secured in a mounting hole formed in the holder by a substrate fastening element formed on the circumference of the PCB substrate. [6] Temperature sensor assembly for a brake disc according to one or more of claims 1 to 5, wherein the holder includes: a mounting body through which the mounting hole is formed in the direction of the front housing; and an extension section designed to project in both lateral directions on both sides of the mounting hole, wherein the extension section has a first through-hole through which a predetermined fastening element can pass. [7] Temperature sensor assembly for a brake disc according to claim 4 or 5, wherein the front housing is designed to have a sensor receiving space in which the sensor of the sensor module is received, and the rear end of the front housing is designed to have an opening so that the sensor receiving space is open towards the rear of the front housing, wherein a coupling part is provided for coupling the front housing to the front of the mounting hole on the circumference of the opening. [8] Temperature sensor assembly for a brake disc according to claim 4 or 5, wherein the rear housing contains: a rear housing body with a flat shape facing the PCB substrate; and a side wall section that protrudes from the rear housing body and is coupled to the inner surface of the mounting hole. [9] Temperature sensor assembly for a brake disc according to claim 8, further comprising an external connection part extending towards the rear of the rear housing body, wherein the PCB substrate is provided with a connection part so that the sensor can be connected to the outside via the external connection part. [10] Temperature sensor assembly for a brake disc according to claim 8, further comprising a sealing element which is provided on the outer circumference of the side wall section to seal between the inner surface of the mounting hole and the side wall section. [11] Temperature sensor assembly for a brake disc according to claim 8, wherein a second through-hole is formed on the circumference of the rear housing body, so that a predetermined coupling element for attaching the rear housing to the bracket can pass through it. [12] Temperature sensor assembly for a brake disc according to one or more of claims 1 to 11, wherein the axis passing through the center of the sensor is designed such that it meets the axis passing through the center of the brake disc at a point, and the sensor is arranged such that it is inclined in a direction towards the outside of the brake disc with respect to the brake disc. [13] Temperature sensor assembly for a brake disc according to claim 12, wherein the distance from the transparent window element to a point where the axis passing through the center of the sensor meets the surface of the brake disc is in the range of 35 mm to 40 mm, and the angle at which the axis passing through the center of the sensor is inclined to the opposite surface of the brake disc is in the range of 20 to 30 degrees. [14] Temperature sensor assembly for a brake disc according to one or more of claims 1 to 13, wherein the holder is coupled to a side of a steering knuckle of a vehicle in which the temperature sensor assembly is installed. [15] Temperature sensor assembly for a brake disc, installed on one side of a vehicle steering knuckle next to the brake disc to measure the temperature of the vehicle's brake disc, the temperature sensor assembly comprising: a housing with a transparent window element arranged so that it is inclined at a predetermined angle to the brake disc at the front; a temperature sensor positioned inside the housing to measure the temperature of the brake disc through the transparent window element; and a bracket that is coupled to the housing to couple the housing to the steering knuckle.

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