A sensor assembly

Abstract

This utility model discloses a sensor assembly, comprising: a sensor, the sensor including a main body and a fixing part, the main body extending along a first direction, the fixing part protruding from the main body, and the fixing part including an upper surface and a lower surface along the first direction; a mounting platform, the mounting platform including an upper surface along the first direction, the mounting platform having a groove, a through hole, and a limiting part, the groove being disposed above the through hole along the first direction and communicating with the through hole, the fixing part being disposed within the groove, the lower surface of the fixing part abutting against the bottom wall of the groove, the main body passing through the groove and the through hole, and the limiting part protruding from the upper surface of the mounting platform; and an elastic limiting device, the elastic limiting device abutting against the upper surface of the fixing part and the limiting part respectively, the elastic limiting device being used to prevent the fixing part from disengaging from the groove along the first direction. This utility model can solve the problem of complex sensor installation process.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts, and in particular to a sensor assembly. Background Technology

[0002] Sensors are widely used in the automotive parts industry, especially in automotive braking systems where they play a crucial role. With the ongoing trend towards lightweight vehicles, sensors are also constantly evolving towards miniaturization. Traditional sensor mounting methods often involve using a protruding flange on the sensor body, which is then bolted to a mounting platform.

[0003] However, traditional sensor installation methods require pre-drilling mounting holes on the mounting platform and additional tightening tools during the tightening process, which complicates the installation process. Utility Model Content

[0004] The purpose of this invention is to solve the problem of complex sensor installation processes. This invention provides a sensor assembly that effectively simplifies the installation process.

[0005] To solve the above-mentioned technical problems, this utility model discloses a sensor assembly, which includes a sensor, the sensor including a main body and a fixing part, the main body extending along a first direction, the fixing part protruding from the main body, the fixing part including an upper surface and a lower surface along the first direction; a mounting platform, the mounting platform including an upper surface along the first direction, the mounting platform having a groove, a through hole and a limiting part, the groove being disposed above the through hole along the first direction, the groove communicating with the through hole, the fixing part being disposed in the groove, the lower surface of the fixing part abutting against the bottom wall of the groove, the main body passing through the groove and the through hole, the limiting part protruding from the upper surface of the mounting platform; and an elastic limiting device, the elastic limiting device abutting against the upper surface of the fixing part and the limiting part respectively, the elastic limiting device being used to prevent the fixing part from disengaging from the groove along the first direction.

[0006] By adopting the above technical solution, a groove and a through hole are provided on the mounting platform. The sensor body passes through the groove and the through hole, and the sensor fixing part is set in the groove. The groove can limit the fixing part along its radial direction. At the same time, an elastic limiting device is provided. The elastic limiting device abuts against the limiting part of the mounting platform and the sensor fixing part respectively, which can effectively prevent the fixing part from leaving the groove in the first direction. The elastic limiting device, combined with the groove itself limiting the fixing part along its radial direction, can effectively fix the fixing part to the mounting platform. Compared with the bolt fixing in the traditional design, this solution does not require additional tightening tools, which effectively simplifies the installation process.

[0007] According to another specific embodiment of the present invention, the limiting part includes two limiting grooves, which are spaced apart on the upper surface of the mounting platform along a second direction. Each limiting groove cooperates with the elastic limiting device to fix the fixing part; the second direction is perpendicular to the first direction.

[0008] By adopting the above technical solution, two limiting grooves are set at intervals along the second direction on the installation platform, and cooperate with the elastic limiting device to achieve bidirectional constraint on the fixed part, enhance the stability of the fixed part fixed to the installation platform, provide installation guidance, and effectively improve the vibration resistance of the overall structure.

[0009] According to another specific embodiment of the present invention, each of the limiting grooves is formed by a first support arm, a second support arm, and a top wall. The first support arm and the second support arm are spaced out on the upper surface of the mounting platform along a third direction. The top wall is spaced out from the upper surface of the mounting platform along the first direction. The first support arm, the top wall, and the second support arm are connected in sequence to form the limiting groove.

[0010] The above technical solution provides an installation space and a limiting space for the subsequent assembly of the elastic limiting device by the limiting groove formed by the first support arm, the second support arm and the top wall. This effectively ensures the accuracy of the installation position of the elastic limiting device. Furthermore, the design of the first support arm and the second support arm effectively enhances the structural strength of the limiting groove itself and prevents it from deforming due to stress.

[0011] According to another specific embodiment of the present invention, the elastic limiting device includes two second limiting members, each of which includes a first abutting portion, two second abutting portions, and two third abutting portions; the first abutting portion abuts against the upper surface of the fixing portion along the first direction, and the first abutting portion is used to restrict the fixing portion from disengaging from the groove along the first direction; the first abutting portions of the two second limiting members are spaced apart along the second direction to form an elastic compression space; each second abutting portion abuts against the top wall and the upper surface of the mounting platform along the first direction, and each second abutting portion penetrates the limiting groove; the two third abutting portions abut against the first support arm and the second support arm respectively along the second direction; the third directions are respectively perpendicular to the first direction and the second direction.

[0012] By adopting the above technical solution, two limiting members are set to form a bidirectional constraint on the fixing part. The first abutting part presses the fixing part from top to bottom along the first direction to prevent it from detaching from the groove along the first direction. The second abutting part is set through the limiting groove and abuts against the top wall and the mounting platform respectively, firmly fixing the elastic limiting device in the limiting groove and effectively preventing it from loosening. The third abutting part clamps the first support arm and the second support arm from both sides along the second direction to prevent the second limiting member from moving in the groove. The second abutting part and the third abutting part achieve multi-directional limiting, thereby firmly fixing the second limiting member on the limiting part.

[0013] According to another specific embodiment of the present invention, the elastic limiting device further includes a connector, the two ends of which are respectively connected to the two third abutment portions, and the two ends of which abut against the two first support arms along the third direction.

[0014] By adopting the above technical solution, the two independent second limiting members are connected into a whole by setting a connector, which effectively enhances the structural rigidity and integrity of the elastic limiting device. Furthermore, the connector cooperates with the two second abutting parts and the two third abutting parts to hug the first support arm and the second support arm, further restricting the degree of freedom of the second limiting members and making them more firmly fixed.

[0015] According to another specific embodiment of the present invention, the first abutting part, the two second abutting parts, the two third abutting parts, and the connecting member are integrally formed.

[0016] By adopting the above technical solution and manufacturing the elastic limiting device through an integrated molding process, the connection weaknesses and loosening risks that may exist in the assembly of multiple parts are eliminated, ensuring the reliability of the synergistic effect between the various abutment parts. Furthermore, by molding the two second limiting parts and connecting parts into one piece, the number of parts can be effectively reduced and the assembly steps can be simplified.

[0017] According to another specific embodiment of this utility model, the elastic limiting device is a metal snap ring.

[0018] By adopting the above technical solution, a metal retaining ring is used as an elastic limiting device. Based on the material properties of the metal retaining ring itself, it can provide relatively durable elastic performance and fatigue strength, and can maintain sufficient clamping force while meeting the needs of multiple sensor disassembly and assembly.

[0019] According to another specific embodiment of the present invention, the fixing part is further provided with two guide walls, which are arranged on both sides of the fixing part along the first direction, and each guide wall corresponds to the first abutting part of each second limiting member; the cross-sectional area of ​​the fixing part gradually decreases from top to bottom along the first direction; the two guide walls are used to squeeze the first abutting parts of the two second limiting members to cross the elastic compression space.

[0020] Using the above technical solution, a guide wall is set at the position corresponding to the fixed platform and the second limiting member. The guide wall has an inclined angle. During the assembly process, the elastic limiting device is first fixed on the limiting part of the mounting platform. Then, the fixing part of the sensor is pressed downward into the groove of the mounting platform along the first direction. During the downward pressing of the sensor, the guide wall will naturally squeeze the first abutment part, causing it to elastically deform. The elastic compression space is gradually expanded along the inclined direction of the guide wall, allowing the fixing part to pass smoothly through the second limiting member and enter the groove. When the fixing part is installed in place, the elastic rebound force of the second limiting member will cause the first abutment part to abut against the upper surface of the fixing part and press the fixing part into the groove. Compared with the traditional method of fixing the sensor with bolts, effective self-locking can be achieved without additional tightening tools, simplifying the assembly process.

[0021] According to another specific embodiment of the present invention, the diameter of the through hole is smaller than the width of the groove.

[0022] According to another specific embodiment of this utility model, the mounting platform is a coupling. Attached Figure Description

[0023] Figure 1 A three-dimensional schematic diagram of the sensor assembly provided in the embodiments of this application is shown. Figure 1 The sensor is not shown.

[0024] Figure 2 A three-dimensional schematic diagram of the sensor assembly provided in the embodiments of this application is shown. Figure 2 .

[0025] Figure 3 A cross-sectional view of the sensor assembly provided in an embodiment of this application is shown.

[0026] Figure 4 A perspective view of the sensor in the sensor assembly provided in this application embodiment is shown.

[0027] Figure 5 A perspective view of the mounting platform for the sensor assembly provided in an embodiment of this application is shown.

[0028] Figure 6 A perspective view of the elastic limiting device of the sensor assembly provided in the embodiment of this application is shown.

[0029] Figure 7 A top view of the sensor assembly provided in an embodiment of this application is shown. Detailed Implementation

[0030] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0031] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0032] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0033] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0034] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0035] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0036] Sensors are widely used in the automotive parts industry, especially in automotive braking systems where they play a crucial role. With the ongoing trend towards lightweight vehicles, sensors are also constantly evolving towards miniaturization. Traditional sensor mounting methods often involve using a protruding flange on the sensor body, which is then bolted to a mounting platform.

[0037] In some existing embodiments, traditional sensor installation methods require pre-drilling mounting holes on the mounting platform and additional tightening tools during the tightening process, which leads to complex installation procedures.

[0038] Therefore, this application provides a sensor assembly with a groove and a through hole in the mounting platform. The fixing part of the sensor is fixed in the groove by an elastic limiting device, while the main body of the sensor passes through the through hole.

[0039] It is understood that the aforementioned mounting platform can be a coupling or a steering knuckle in a vehicle, and this application does not impose any restrictions on this.

[0040] For example, the sensor is a wheel speed sensor. However, those skilled in the art will understand that in other embodiments, the sensor may be other types of sensors, such as a camshaft sensor, etc., and this application does not limit this.

[0041] Specifically, refer to Figures 1 to 3 The sensor assembly 100 of this application embodiment includes a sensor 200, a mounting platform 300, and an elastic limiting device 400. The sensor 200 includes a main body 210 and a fixing part 220. The mounting platform 300 includes an upper surface 310 along the first direction Z. The mounting platform 300 is provided with a groove 320, a through hole 330, and a limiting part 340. The groove 320 is disposed above the through hole 330 along the first direction Z and communicates with the through hole 330. The fixing part 220 is disposed in the groove 320. The elastic limiting device 400 includes two second limiting members 410. The elastic limiting device 400 is used to restrict the fixing part 220 from disengaging from the groove 320 along the first direction Z.

[0042] Specifically, the mounting platform 300 is provided with a groove 320 and a through hole 330. The groove 320 has an opening 321. During the assembly process, the two second limiting members 410 included in the elastic limiting device 400 are first assembled onto the limiting part 340 of the mounting platform 300. Then, the main body 210 of the sensor 200 passes through the groove 320 and the through hole 330 through the opening 321. The fixing part 220 of the sensor 200 enters the groove 320 through the opening 321. The groove 320 can limit the fixing part 220 along its radial direction. At the same time, when the fixing part 220 is installed in place, the elastic rebound force of the second limiting member 410 will abut against the upper surface 221 of the fixing part and press the fixing part 220 into the groove 320.

[0043] In some possible embodiments, during the assembly process, the main body 210 of the sensor 200 can be passed through the opening 321 through the groove 320 and the through hole 330, and the fixing part 220 of the sensor 200 can be inserted into the groove 320 through the opening 321. After the fixing part 220 is installed in place, the two second limiting members 410 are respectively assembled into the limiting part 340 to press the fixing part 220 into the groove 320.

[0044] It should be noted that the elastic limiting device 400 can effectively prevent the fixing part 220 from disengaging from the groove 320 along the first direction Z. The elastic limiting device 400, combined with the groove 320 itself limiting the fixing part 220 along its radial direction, can effectively fix the fixing part 220 to the mounting platform 300. Compared with the bolt fixing in the traditional design, in this embodiment, no additional tightening tools are required, which effectively simplifies the installation process.

[0045] refer to Figure 4 The main body 210 extends along the first direction Z, and the fixing part 220 protrudes from the main body 210. The fixing part 220 includes an upper surface 221 and a lower surface 222 along the first direction Z.

[0046] Specifically, the fixing part 220 protrudes from the main body 210 and is used to fix the main body 210 to the mounting platform 300.

[0047] For example, the fixing part 220 is a cube shape. However, those skilled in the art will understand that in other embodiments, the fixing part 220 can be other shapes, such as cuboids or cylinders, and this application is not limited thereto.

[0048] Furthermore, returning to Figure 3The lower surface 222 of the fixing part abuts against the bottom wall 322 of the groove 320. The main body 210 passes through the groove 320 and the through hole 330. The diameter D of the through hole 330 is smaller than the width H of the groove 320. The limiting part 340 protrudes from the upper surface 310 of the mounting platform. The elastic limiting device 400 abuts against the upper surface 221 of the fixing part and the limiting part 340 respectively.

[0049] Specifically, the fixing part 220 is placed in the groove 320 through the opening 321. The elastic limiting device 400 abuts against the limiting part 340 of the mounting platform 300 and the fixing part 220 of the sensor 200, which can effectively limit the fixing part 220 from disengaging from the groove 320 along the first direction Z. At the same time, the diameter D of the through hole 330 is smaller than the width H of the groove 320, which can prevent the fixing part 220 from falling out of the mounting platform 300 through the through hole 330. The groove 320 supports the fixing part 220 upward along the first direction Z.

[0050] refer to Figure 5 The limiting part 340 includes two limiting grooves 341, which are spaced apart along the second direction X on the upper surface 310 of the mounting platform. Each limiting groove 341 cooperates with the elastic limiting device 400 to fix the fixing part 220 (e.g., Figure 3 (As shown); each limiting groove 341 is formed by a first support arm 342, a second support arm 343 and a top wall 344. The first support arm 342 and the second support arm 343 are spaced out along the third direction Y on the upper surface of the mounting platform 310. The top wall 344 is spaced out along the first direction Z from the upper surface of the mounting platform 310. The first support arm 342, the top wall 344 and the second support arm 343 are connected in sequence to form the limiting groove 341. The second direction X is perpendicular to the first direction Z, and the third direction Y is perpendicular to both the first direction Z and the second direction X.

[0051] For example, the first support arm 342 and the second support arm 343 are disposed close to the inner wall 323 of the groove 320. However, those skilled in the art will understand that in other embodiments, the first support arm 342 and the second support arm 343 may also be disposed in other positions, such as spaced apart from the inner wall 323 of the groove 320, and this application does not limit this.

[0052] For example, the first support arm 342, the second support arm 343, and the top wall 344 included in the limiting part 340 are integrally formed with the mounting platform 300. However, those skilled in the art will understand that in other embodiments, the limiting part 340 is fixed to the mounting platform 300 by other means, such as by bolts and nuts, or by snap-fit, etc., and this application does not limit this.

[0053] refer to Figures 5 to 7Each second limiting member 410 includes a first abutting portion 411, two second abutting portions 412, and two third abutting portions 413; the first abutting portion 411 abuts against the upper surface 221 of the fixing portion along the first direction Z, and the first abutting portion 411 is used to restrict the fixing portion 220 from disengaging from the groove 320 along the first direction Z; the first abutting portions 411 of the two second limiting members 410 are spaced apart along the second direction X to form an elastic compression space S; each second abutting portion 412 abuts against the top wall 344 and the upper surface 310 of the mounting platform along the first direction Z, and each second abutting portion 412 penetrates the limiting groove 341; the two third abutting portions 413 abut against the first support arm 342 and the second support arm 343 respectively along the second direction X.

[0054] Specifically, by setting two second limiting members 410, a bidirectional constraint is formed on the fixing part 220. The first abutting part 411 presses the fixing part 220 from top to bottom along the first direction Z to prevent it from dislodging from the groove 320 along the first direction Z. The second abutting part 412 is set through the limiting groove 341 and abuts against the top wall 344 and the mounting platform 300 respectively, firmly fixing the elastic limiting device 400 in the limiting groove 341 and effectively preventing it from loosening. The third abutting part 413 clamps the first support arm 342 and the second support arm 343 from both sides along the second direction X to prevent the second limiting member 410 from moving in the groove. The second abutting part 412 and the third abutting part 413 achieve multi-directional limiting, thereby firmly fixing the second limiting member 410 on the limiting part 340.

[0055] For example, refer to Figure 5 The limiting groove 341 is a through groove structure.

[0056] In some possible embodiments, the second abutment 412 can be directly fixed in the limiting groove 341 by welding, and the third abutment 413 can be eliminated. That is, the limiting groove 341 can be set as a slot structure instead of a through groove structure.

[0057] Further, refer to Figure 5 The elastic limiting device 400 also includes a connector 420, the two ends of which are respectively connected to two third abutment portions 413, and the two ends of the connector 420 respectively abut against two first support arms 342 along a third direction Y (e.g. Figure 1 As shown, the first abutment 411, two second abutment 412, two third abutment 413, and connector 420 are integrally formed.

[0058] It should be noted that by manufacturing the second limiting component 410 through an integral molding process, the connection weaknesses and loosening risks that may exist in the assembly of multiple parts are eliminated, ensuring the reliability of the synergistic effect between the various abutment parts. Furthermore, by integrally molding the two second limiting components 410 with the connector 420, the number of parts can be effectively reduced and the assembly steps can be simplified.

[0059] For example, the elastic limiting device 400 is a metal snap ring.

[0060] Back Figure 3 and Figure 4 The fixing part 220 is also provided with two guide walls 223. The two guide walls 223 are arranged on both sides of the fixing part 220 along the first direction Z. Each guide wall 223 corresponds to the first abutting part 411 of each second limiting member 410. The cross-sectional area of ​​the fixing part 220 gradually decreases from top to bottom along the first direction Z. The two guide walls 223 are used to squeeze the first abutting parts 411 of the two second limiting members 410 to cross the elastic squeezing space S.

[0061] Specifically, during the assembly process, the elastic limiting device 400 is first fixed to the limiting part 340 of the mounting platform 300, and then the fixing part 220 of the sensor 200 is pressed downward along the first direction Z into the groove 320 of the mounting platform 300. The guide wall 223 has an inclined angle. During the downward pressing of the sensor 200, the guide wall 223 will naturally squeeze the first abutting part 411, causing it to elastically deform, and gradually expand the elastic compression space S along the inclined direction of the guide wall 223, allowing the fixing part 220 to smoothly pass through the second limiting member 410 and enter the groove 320. When the fixing part 220 is installed in place, the elastic rebound force of the second limiting member 410 will cause the first abutting part 411 to abut against the upper surface 221 of the fixing part, and press the fixing part 220 into the groove 320.

[0062] It should be noted that, compared to the traditional method of fixing the sensor 200 with bolts, effective self-locking can be achieved without additional tightening tools, simplifying the assembly process.

[0063] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. A sensor assembly, characterized in that, include: The sensor includes a main body and a fixing part, the main body extends along a first direction, the fixing part protrudes from the main body, and the fixing part includes an upper surface and a lower surface along the first direction; The mounting platform includes an upper surface along the first direction, and is provided with a groove, a through hole, and a limiting part. The groove is disposed above the through hole along the first direction and communicates with the through hole. The fixing part is disposed in the groove, and the lower surface of the fixing part abuts against the bottom wall of the groove. The main body passes through the groove and the through hole, and the limiting part protrudes from the upper surface of the mounting platform. An elastic limiting device is provided, which abuts against the upper surface of the fixing part and the limiting part respectively, and is used to restrict the fixing part from disengaging from the groove along the first direction.

2. The sensor assembly as described in claim 1, characterized in that, The limiting part includes two limiting grooves, which are spaced apart on the upper surface of the mounting platform along the second direction. Each limiting groove cooperates with the elastic limiting device to fix the fixing part. The second direction is perpendicular to the first direction.

3. The sensor assembly as described in claim 2, characterized in that, Each of the limiting grooves is formed by a first support arm, a second support arm, and a top wall. The first support arm and the second support arm are spaced out on the upper surface of the mounting platform along a third direction. The top wall is spaced out from the upper surface of the mounting platform along the first direction. The first support arm, the top wall, and the second support arm are connected in sequence to form the limiting groove.

4. The sensor assembly as described in claim 3, characterized in that, The elastic limiting device includes two second limiting members, each of which includes a first abutting part, two second abutting parts, and two third abutting parts; The first abutting portion abuts against the upper surface of the fixing portion along the first direction, and the first abutting portion is used to prevent the fixing portion from disengaging from the groove along the first direction; The first abutting portions of the two second limiting members are spaced apart along the second direction to form an elastic compression space; Each of the second abutting portions abuts against the top wall and the upper surface of the mounting platform along the first direction, and each of the second abutting portions penetrates the limiting groove; The two third abutting portions abut against the first support arm and the second support arm respectively along the second direction; The third direction is perpendicular to both the first direction and the second direction.

5. The sensor assembly as described in claim 4, characterized in that, The elastic limiting device further includes a connector, the two ends of which are respectively connected to the two third abutment portions, and the two ends of which abut against the two first support arms along the third direction.

6. The sensor assembly as described in claim 5, characterized in that, The first abutting part, the two second abutting parts, the two third abutting parts, and the connector are integrally formed.

7. The sensor assembly as described in any one of claims 4 to 6, characterized in that, The elastic limiting device is a metal snap ring.

8. The sensor assembly as described in claim 7, characterized in that, The fixing part is also provided with two guide walls, which are arranged on both sides of the fixing part along the first direction, and each guide wall corresponds to the first abutting part of each second limiting member; The cross-sectional area of ​​the fixing part gradually decreases from top to bottom along the first direction; The two guide walls are used to press the first abutment portion of the two second limiting members to pass over the elastic compression space.

9. The sensor assembly as described in claim 1, characterized in that, The diameter of the through hole is smaller than the width of the groove.

10. The sensor assembly as claimed in claim 1, characterized in that, The installation platform is a coupling.

Images