Wheel speed sensor and vehicle

Abstract

The utility model discloses a wheel speed sensor, comprising a housing comprising a first part, a connecting part and a second part which are sequentially connected along a first direction; wherein the first part is internally provided with a sensing head, the second part is internally provided with a port, and the port is used for being electrically connected with a vehicle; the connecting part is provided with external threads, and the first part is used for penetrating through a threaded hole of an external part so that the external threads of the connecting part can be in threaded connection with the threaded hole of the external part. According to the utility model, the production cost of materials, design, processing and the like of the wheel speed sensor can be effectively reduced, and the wheel speed sensor has high adaptability. The utility model further provides a vehicle using the wheel speed sensor.

Description

Technical Field

[0001] This utility model relates to the field of wheel speed sensor installation technology, and in particular to a wheel speed sensor and a vehicle. Background Technology

[0002] Wheel speed sensors are used in automotive anti-lock braking systems (ABS). They are typically mounted on the steering knuckle, close to the magnetic encoder mounted on the wheel. As the wheel rotates, the magnetic encoder generates a periodically changing magnetic field. The wheel speed sensor detects these changes in the magnetic field to read the wheel speed, thus monitoring the vehicle speed and feeding it back to the braking system.

[0003] Currently, steering knuckles and wheel speed sensors need to be designed to be compatible; otherwise, installation difficulties may occur. For example, typically, at least two mounting holes are pre-drilled on the steering knuckle, and a flange with threaded holes is injection-molded into the wheel speed sensor housing. The sensor head (i.e., the core component with the sensing chip for reading and converting signals) is then inserted into one of the mounting holes of the steering knuckle, ensuring that the reading surface of the sensor head is close to the magnetic encoder of the wheel. Because it is a compatible design, the threaded hole of the flange can also correspond to the other mounting hole of the steering knuckle. Finally, bolts are inserted into the threaded hole and the mounting hole to install the steering knuckle and wheel speed sensor.

[0004] However, this installation method has certain limitations. First, different flange orientations of the wheel speed sensor require different mounting holes, which increases the design and manufacturing costs of both the wheel speed sensor and the steering knuckle. Furthermore, reserving at least two mounting holes in the steering knuckle increases the number of processing steps and complexity, further raising manufacturing costs. Second, injection molding the flange onto the wheel speed sensor housing increases the amount of injection molding material used, leading to material waste. Utility Model Content

[0005] The purpose of this invention is to solve the technical problem of high production costs associated with existing wheel speed sensor installation methods. This invention provides a wheel speed sensor and vehicle that can effectively reduce the production costs of wheel speed sensors, including materials, design, and processing, and also offers high adaptability.

[0006] To solve the above-mentioned technical problems, an embodiment of this utility model discloses a wheel speed sensor, comprising:

[0007] The outer casing includes a first part, a connecting part, and a second part connected sequentially along a first direction; wherein,

[0008] The first part has a sensor head inside, and the second part has a port inside, which is used to connect with a vehicle.

[0009] The connecting portion has an external thread, and the first portion is used to pass through a threaded hole in the external part so that the external thread of the connecting portion connects with the threaded hole in the external part.

[0010] Using the above technical solution, the wheel speed sensor housing of the vehicle in this embodiment includes a threaded connection portion. When the wheel speed sensor needs to be installed on an external part (e.g., a steering knuckle), it can be conveniently installed by simply connecting the external thread of the connection portion located between the first and second portions along a first direction to the threaded hole of the steering knuckle. In other words, the connection portion can be directly threaded to the steering knuckle, instead of using the traditional connection method of opening threaded holes in a flange (a type of flange used for mechanical connection, usually injection molded with the housing) and using bolts to achieve the connection between the wheel speed sensor and the steering knuckle.

[0011] In this embodiment, the threaded connecting portion can be directly inserted into the steering knuckle, allowing the external thread to connect with the steering knuckle thread, thus enabling the wheel speed sensor to be directly inserted and installed on the steering knuckle. This avoids the problem of incompatibility between the flange extension direction and the pre-drilled threaded hole in the steering knuckle. In other words, the same wheel speed sensor can be adapted to different steering knuckles of different vehicle models, effectively reducing the design and manufacturing costs of the wheel speed sensor. Furthermore, it eliminates the need for vehicle manufacturers or automotive parts suppliers to invest significant manpower and communication costs in coordinating the design compatibility between the wheel speed sensor and the steering knuckle, effectively reducing labor costs.

[0012] Secondly, the wheel speed sensor in this embodiment does not require injection molding of the flange, which reduces the amount of injection molding material used and effectively lowers the material cost of the wheel speed sensor.

[0013] According to another specific embodiment of the present invention, the connecting part includes a connecting body and a metal threaded ring that wraps around the connecting body, and the external thread is disposed on the metal threaded ring.

[0014] According to another specific embodiment of the present invention, the first part, the connecting body and the second part are injection molded.

[0015] According to another specific embodiment of the present invention, one side outer wall of the second part is provided with a first guide portion and a second guide portion extending along the first direction respectively. The first guide portion and the second guide portion are spaced apart along the second direction. The first guide portion, the second guide portion and the second part define an assembly groove, which is used for mating and insertion with a vehicle. The second direction intersects with the first direction.

[0016] Using the above technical solution, a first guide portion and a second guide portion are provided on the outer wall of the second part to define an assembly groove extending along a first direction. That is, the assembly groove is located outside the port, and when the port is mated with a vehicle (e.g., with a vehicle connector), the vehicle connector can be inserted into the assembly groove. In other words, the assembly groove is used for inserting the vehicle connector to guide and mate it. On the other hand, the first and second guide portions, located on one side of the outer wall of the second part, also serve as error prevention, meaning that it facilitates the operator in identifying the direction of the wheel speed sensor during installation (e.g., when the port of the second part is mated with the vehicle connector).

[0017] According to another specific embodiment of the present invention, the second part is provided with a protrusion, which is located between the first guide part and the second guide part and within the assembly groove, and is used to engage with a vehicle.

[0018] By adopting the above technical solution, a protrusion is provided in the assembly groove. When the port is plugged into the vehicle (e.g., with the vehicle connector), the protrusion can be used to engage with the slotted protrusion on the vehicle connector to achieve a stable plugging into the vehicle connector.

[0019] According to another specific embodiment of the present invention, the second part has a limiting substrate, which protrudes from the connecting part along a second direction or a third direction; the second direction, the third direction, and the first direction intersect each other.

[0020] Using the above technical solution, the limiting plate on the second part protrudes relative to the connecting part. When the connecting part is inserted into an external part (e.g., a steering knuckle), the limiting plate can abut against the surface of the steering knuckle to limit the assembly of the wheel speed sensor and the steering knuckle. Furthermore, the wheel speed sensor will not wobble along the first direction, thereby enabling control of the reading distance between the first part passing through the steering knuckle and the wheel.

[0021] This utility model also discloses a vehicle, including a steering knuckle and a wheel speed sensor as described in any of the above embodiments. The steering knuckle is provided with a threaded receiving hole, the threaded receiving hole having an internal thread. A first portion of the wheel speed sensor passes through the threaded receiving hole of the steering knuckle, so that the external thread of the connecting portion is threadedly connected to the internal thread of the threaded receiving hole.

[0022] Using the above technical solution, the wheel speed sensor housing of the vehicle in this embodiment includes a connecting portion with external threads, and the steering knuckle has a threaded hole with internal threads. When the wheel speed sensor needs to be installed on the steering knuckle, it is only necessary to connect the external thread of the connecting portion located between the first portion and the second portion along the first direction with the internal thread of the threaded hole of the steering knuckle to achieve convenient installation of the wheel speed sensor and the steering knuckle. In other words, the connecting portion can be directly threaded to the steering knuckle, instead of using the traditional connection method of opening threaded holes in the flange (a flange used for mechanical connection, usually injection molded with the housing) and using bolts to achieve the connection between the wheel speed sensor and the steering knuckle.

[0023] In this embodiment, the threaded connecting portion can be directly inserted into the steering knuckle, allowing the external thread to connect with the internal thread of the steering knuckle, thus enabling the wheel speed sensor to be directly inserted and installed on the steering knuckle. This avoids the problem of incompatibility between the flange extension direction and the pre-drilled threaded hole in the steering knuckle. In other words, the same wheel speed sensor can be adapted to different steering knuckles of different vehicle models, effectively reducing the design and manufacturing costs of the wheel speed sensor. Furthermore, it eliminates the need for vehicle manufacturers or automotive parts suppliers to invest significant manpower and communication costs in coordinating the design compatibility between the wheel speed sensor and the steering knuckle, effectively reducing labor costs.

[0024] Secondly, the wheel speed sensor in this embodiment does not require injection molding of the flange, which reduces the amount of injection molding material used and effectively lowers the material cost of the wheel speed sensor.

[0025] At the same time, there is no need to reserve at least two mounting holes on the steering knuckle; only one threaded receiving hole needs to be machined to achieve the installation of the wheel speed sensor, which effectively reduces the machining cost of the steering knuckle.

[0026] According to another specific embodiment of the present invention, the vehicle further includes a wheel, the steering knuckle is connected to the wheel, and the first part of the wheel speed sensor is disposed opposite to the wheel. Attached Figure Description

[0027] Figure 1A A schematic diagram of an existing wheel speed sensor is shown.

[0028] Figure 1B A schematic diagram of the structure of an existing wheel speed sensor is shown. Figure 2 .

[0029] Figure 1C A schematic diagram of the structure of an existing wheel speed sensor is shown. Figure 3 .

[0030] Figure 2 A perspective view of the wheel speed sensor according to an embodiment of the present invention is shown.

[0031] Figure 3 This diagram illustrates the connection and mating of the wheel speed sensor and the vehicle according to an embodiment of the present invention.

[0032] Figure 4 This diagram shows the structure of the steering knuckle in a vehicle according to an embodiment of the present invention.

[0033] Figure 5 This diagram illustrates the installation of the wheel speed sensor and steering knuckle in a vehicle according to an embodiment of the present invention. Detailed Implementation

[0034] 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.

[0035] 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.

[0036] 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.

[0037] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0038] 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.

[0039] 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.

[0040] refer to Figures 1A to 1C , Figures 1A to 1C A wheel speed sensor 1000 is illustrated in some embodiments of this application.

[0041] The wheel speed sensor 1000 includes a housing 1100 and a flange 1200. Exemplarily, the housing 1100 and the flange 1200 are injection molded.

[0042] As can be seen, the housing 1100 includes a reading section 1110 and a wiring section 1120. The reading section 1110 internally houses a sensor head 1010, which includes a chip (e.g., a Hall effect chip, a magnetoresistive chip, or an integrated signal processing chip, not shown in the figure). Those skilled in the art will understand that the sensor head 1010 is used to detect the wheel's rotational speed and has a reading surface 10100, meaning that the reading surface 10100 must be close to the magnetic encoder mounted on the wheel. Meanwhile, the wiring section 1120 internally houses a port 1020, which is used for electrical connection to a connector (not shown in the figure) to the vehicle's electronic system.

[0043] Continue to refer to Figures 1A to 1C Flange 1200 extends along the X direction (e.g., the direction intersecting the extension direction of housing 1100). During the design process prior to injection molding, there are various options for the extension direction, shape, and length of flange 1200, such as... Figure 1A and Figure 1B As shown, flange 1200 is configured to extend along the X1 direction so that it protrudes relative to housing 1100 along the X1 direction. Figure 1C As shown, flange 1200 is configured to extend along the X2 direction so that it protrudes relative to housing 1100 along the X2 direction.

[0044] At the same time, it can be seen that the flange 1200 is also provided with a threaded hole 1210, which is used to correspond to the mounting hole (not shown in the figure) opened in the steering knuckle.

[0045] Figures 1A to 1C The wheel speed sensor 1000 shown is typically designed to be used with a vehicle's steering knuckle (not shown in the figure). This means that a threaded receiving hole and a receiving hole (equivalent to having at least two mounting holes) need to be made on the steering knuckle. The sensor head 1010 of the wheel speed sensor 1000 is then inserted into the receiving hole of the steering knuckle and extended out of the receiving hole so that the reading surface 10100 can be close to the magnetic encoder of the wheel. At the same time, the flange 1200 of the wheel speed sensor 1000 abuts against the top surface of the steering knuckle along the Z direction (e.g., the height direction), and the threaded hole 1210 on the flange 1200 corresponds to the threaded receiving hole of the steering knuckle. At this point, bolts are also needed to be inserted into the threaded hole 1210 and the threaded receiving hole to fix the wheel speed sensor 1000 and the steering knuckle.

[0046] Therefore, the installation of this type of wheel speed sensor 1000 and steering knuckle has certain limitations. Firstly, as... Figures 1A to 1C As shown, the flange 1200 of the wheel speed sensor 1000 extends in different directions, which requires the steering knuckle to have threaded receiving holes in different positions. For example, different threaded receiving holes can be machined on the steering knuckle to meet the requirements of different models (e.g., flanges 1200 with different extension directions) of wheel speed sensors 1000 in actual industrial applications. However, this will increase the design and processing costs of the steering knuckle.

[0047] Alternatively, only one threaded receiving hole could be machined on the steering knuckle. However, in subsequent applications, only wheel speed sensors 1000 compatible with this single threaded receiving hole could be used, resulting in poor compatibility. Furthermore, a receiving hole for the sensor head 1010 to pass through would need to be machined on the steering knuckle, increasing the machining complexity and cost.

[0048] Furthermore, such as Figures 1A to 1C As shown, molding the flange 1200 onto the housing 1100 increases the amount of injection molding material used, resulting in material waste. Furthermore, this mounting method requires additional bolts for securing the sensor, which may cause disassembly difficulties when the wheel speed sensor needs to be replaced.

[0049] Based on this, refer to Figure 2 This application embodiment also provides a wheel speed sensor 100, which does not have a flange.

[0050] Specifically, the wheel speed sensor 100 includes: a housing 110, the housing including components along a first direction (e.g., Figure 2 The first part 111, the connecting part 120, and the second part 112 are connected sequentially in the P direction shown in the figure.

[0051] The first part 111 has a sensor head 101 inside, and the second part 112 has a port 102 inside, which is used to connect with a vehicle (e.g., with a vehicle connector described later).

[0052] For example, the sensor head 101 is used to detect the rotational speed of a wheel. Specifically, the sensor head 101 includes a chip, and the bottom of the sensor head 101 (i.e., Figure 2 The side (pointed to in the direction of P1) has a reading surface 1011, which needs to be close to the magnetic encoder on the wheel (not shown in the figure).

[0053] Magnetic encoders are typically mounted on wheel bearings or hubs and rotate with the wheel. The magnetic encoder has magnetic poles, and when it rotates with the wheel, the magnetic field will change periodically. The reading surface 1011 can detect and read the periodic changes in the magnetic field, thereby reading the wheel speed and realizing the monitoring of vehicle speed.

[0054] For example, port 102 can be used to electrically connect to a vehicle connector (not shown) and then to the vehicle's electronic system to transmit wheel rotation speed data to the vehicle's electronic system.

[0055] Continue to refer to Figure 2 As can be seen, the connecting part 120 does not have a flange, but is connected to the first part 111 and the second part 112. For example... Figure 2 As shown, the connecting portion 120 surrounds a portion of the outer surface of the first portion 111 and is located between at least a portion 1111 of the first portion 111 and the second portion 112. Furthermore, the connecting portion 120 in this embodiment has an external thread 121, which can be directly threadedly connected to an external part (e.g., a steering knuckle) without the need for flanges, bolts, or other connecting components; simultaneously, the steering knuckle only needs to provide a mounting hole (such as a threaded receiving hole, as described later) for the external thread 121 of the connecting portion to achieve threaded connection.

[0056] It is understood that the embodiments of this application do not impose specific restrictions on the winding position of the connecting portion 120. For example, the connecting portion 120 may also wrap around a portion of the outer surface of the second portion 112, or the connecting portion 120 may jointly wrap around a portion of the outer surface of the first portion 111 and a portion of the outer surface of the second portion 112.

[0057] Additionally, it should be noted that the shape of the connecting portion 120 is not specifically limited in this embodiment. For example, the connecting portion 120 can be circular, elliptical, rectangular, conical, or other shapes. However, it is required that the connecting portion 120 can be wound around a portion of the outer surface of the first portion 111, or that the connecting portion 120 can be wound around a portion of the outer surface of the second portion 112, or that the connecting portion 120 can be wound together around a portion of the outer surface of the first portion 111 and a portion of the outer surface of the second portion 112.

[0058] Accordingly, the embodiments of this application do not impose specific limitations on the shapes of the first part 111 and the second part 112.

[0059] In some possible implementations, the connecting portion 120 includes a connecting body 122 and a metal threaded ring 123 that encloses the connecting body 122, with an external thread 121 disposed on the metal threaded ring 123. Exemplarily, the metal threaded ring 123 with the external thread 121 can be made of materials such as iron or aluminum alloy, and the material of the metal threaded ring 123 is not limited in the embodiments of this application.

[0060] In some possible implementations, the connecting body 122 and the first part 111 and the second part 112 are injection molded together.

[0061] Using the above technical solution, the housing 110 of the wheel speed sensor 100 in this embodiment includes a connecting portion 120 with external threads 121. When the wheel speed sensor 100 needs to be installed on an external part (e.g., a steering knuckle), it is only necessary to thread the external threads 121 of the connecting portion 120 located between the first portion 111 and the second portion 112 along a first direction to the threaded hole of the steering knuckle, thus achieving convenient installation of the wheel speed sensor 100 and the steering knuckle. In other words, the connecting portion 120 can be directly threaded to the steering knuckle without using a flange (a flange used for mechanical connection, typically injection molded with the housing, such as...). Figures 1A to 1C The flange 1200 shown has threaded holes (such as...). Figures 1A to 1C The conventional connection between the wheel speed sensor 100 and the steering knuckle is achieved by using the threaded hole 1210 shown and supplementing it with bolts.

[0062] In this embodiment, the connecting portion 120 with external threads 121 can be directly inserted into the steering knuckle, allowing the external threads 121 to connect threadedly with the steering knuckle, thereby enabling the wheel speed sensor 100 to be directly inserted and installed on the steering knuckle. This avoids issues caused by flanges (such as...) Figures 1A to 1C The flange 1200 shown extends in a different direction than the threaded hole pre-drilled in the steering knuckle (e.g. Figures 1A to 1CThe threaded hole 1210 shown is not compatible. That is, the same wheel speed sensor 100 can be adapted to different steering knuckles of different car models, which effectively reduces the design and manufacturing costs of the wheel speed sensor 100; in addition, it does not require vehicle manufacturers or automotive parts suppliers to invest more manpower and communication costs to coordinate the design matching between the wheel speed sensor 100 and the steering knuckle, which effectively reduces labor costs.

[0063] Secondly, the wheel speed sensor 100 in this embodiment does not require injection molding of the flange (e.g. Figures 1A to 1C The flange 1200 shown can reduce the amount of injection molding material used, effectively reducing the material cost of the wheel speed sensor 100.

[0064] refer to Figure 2 and Figure 3 In some possible implementations, one side of the outer wall of the second part 112 is provided with respective directions along the first direction (e.g., Figure 2 The first guide portion 1121 and the second guide portion 1122 extend along the second direction (as shown in the P direction), and the first guide portion 1121 and the second guide portion 1122 extend along the second direction (as shown in the P direction). Figure 2 As shown in the diagram, the Q direction is spaced apart, and the outer walls of the first guide portion 1121, the second guide portion 1122, and the second portion 112 define a mounting groove 1123 for mating with a vehicle; exemplarily, the second direction intersects the first direction.

[0065] In other words, such as Figure 3 As shown, the mounting slot 1123 is located outside the aforementioned port 102, when the port 102 is plugged into the vehicle (e.g., with...). Figure 3 When the vehicle connector 300 is shown, the mounting portion 301 of the vehicle connector 300 can be inserted into the mounting groove 1123. That is, the mounting groove 1123 is used for the vehicle connector 300 to be inserted, so as to guide and engage the vehicle connector 300. On the other hand, the first guide portion 1121 and the second guide portion 1122 are provided on one side of the outer wall of the second portion 112, which can also play a role in preventing errors. That is, it makes it easier for the operator to identify the direction of the wheel speed sensor 100 during installation (for example, when the port 102 of the second portion 112 is inserted into the vehicle connector 300).

[0066] Continue to refer to Figure 2 and Figure 3 In some possible implementations, the second part 112 is provided with a protrusion 1124, which is located between the first guide part 1121 and the second guide part 1122 and within the assembly groove 1123. The protrusion 1124 is used to engage with the vehicle.

[0067] In other words, such as Figure 2As shown, a protrusion 1124 is provided in the assembly groove 1123, such as... Figure 3 As shown, when port 102 is plugged into vehicle connector 300, protrusion 1124 can be used to engage with slot (not shown) on vehicle connector 300 to achieve stable plugging of wheel speed sensor 100 into vehicle connector 300.

[0068] refer to Figure 4 and combined Figure 2 This application also provides a vehicle including a steering knuckle 200 and a wheel speed sensor 100 as described in any of the above embodiments, wherein the wheel speed sensor 100 can be directly mounted to the steering knuckle 200 via the connecting portion 120.

[0069] Figure 4 An exemplary structural schematic diagram of the steering knuckle 200 is shown. It should be noted that the shape and structure of the steering knuckle 200 are not limited in this application embodiment. Any shape and structure that can be installed by the wheel speed sensor 100 is within the protection scope of this application embodiment.

[0070] refer to Figure 5 and combined Figure 2 and Figure 4 Specifically, the steering knuckle 200 is provided with a threaded receiving hole 210 along the first direction (e.g., Figure 2 and Figure 5 (As shown in the P direction), the threaded receiving hole 210 allows the first portion 111 of the wheel speed sensor 100 to pass through, and the connecting portion 120 is threadedly connected to the threaded receiving hole 210, thereby, as Figure 5 As shown, the wheel speed sensor 100 can be directly installed in a threaded receiving hole 210 of the steering knuckle 200.

[0071] Using the above technical solution, the housing 110 of the wheel speed sensor 100 in this embodiment includes a connecting portion 120 with an external thread 121. The steering knuckle 200 is provided with a threaded receiving hole 210 with an internal thread (not shown in the figure, but it can be understood that the internal thread can be threadedly engaged with the external thread 121 of the connecting portion 120). When it is necessary to install the wheel speed sensor 100 onto the steering knuckle 200, it is only necessary to thread the external thread 121 of the connecting portion 120 located between the first portion 111 and the second portion 112 along the first direction with the internal thread of the threaded receiving hole 210 of the steering knuckle 200 to achieve convenient installation of the wheel speed sensor 100 and the steering knuckle 200. In other words, the connecting portion 120 can be directly threadedly connected to the steering knuckle 200, without using a flange (such as...). Figures 1A to 1C The flange 1200 shown has threaded holes (such as...). Figures 1A to 1CThe traditional connection method between the wheel speed sensor 100 and the steering knuckle 200 is achieved by using the threaded hole 1210 shown and supplementing it with bolts.

[0072] In this embodiment, the connecting portion 120 with external threads 121 can be directly inserted into the steering knuckle 200, allowing the external threads 121 to connect with the internal threads of the steering knuckle 200, thus enabling the wheel speed sensor 100 to be directly inserted and installed on the steering knuckle 200. This avoids the problem of incompatibility between the flange extension direction and the threaded receiving hole 210 of the steering knuckle 200. In other words, the same wheel speed sensor 100 can be adapted to different steering knuckles 200 of different vehicle models, effectively reducing the design and manufacturing costs of the wheel speed sensor 100. Furthermore, it eliminates the need for vehicle manufacturers or automotive parts suppliers to invest significant manpower and communication costs in coordinating the design compatibility between the wheel speed sensor 100 and the steering knuckle 200, effectively reducing labor costs.

[0073] Secondly, the wheel speed sensor 100 in this embodiment does not require injection molding of the flange, which can reduce the amount of injection molding material used and effectively reduce the material cost of the wheel speed sensor 100.

[0074] At the same time, it is not necessary to pre-drill at least two mounting holes on the steering knuckle 200 (e.g. Figures 1A to 1C As shown, for example, a threaded receiving hole corresponding to the threaded hole of the flange, and a receiving hole for the sensor head 1010 to pass through, the installation of the wheel speed sensor 100 can be achieved by machining only one threaded receiving hole 210 on the steering knuckle 200, which effectively reduces the machining cost of the steering knuckle 200.

[0075] For example, the vehicle in this embodiment of the application also includes wheels (not shown in the figure), a steering knuckle 200 is connected to the wheels, and a first portion 111 of the wheel speed sensor 100 is disposed opposite to the wheels. That is, for example, the sensor head 101 in the first portion 111 is disposed opposite to the magnetic encoder on the wheel, so as to ensure that the sensor head 101 detects the periodic magnetic field generated by the magnetic encoder during the rotation of the wheel, so as to realize the monitoring of the vehicle speed by the wheel speed sensor 100.

[0076] refer to Figure 2 and Figure 4 In some possible implementations, the second portion 112 has a limiting substrate 1125 along a second direction (e.g., Figure 2 The Q direction shown in the figure) or a third direction (such as Figure 2As shown in the S direction), the limiting substrate 1125 protrudes from the connecting portion 120; exemplaryly, in this embodiment, the first direction, the second direction, and the third direction intersect each other. Using this technical solution, the limiting substrate 1125 on the second portion 112 protrudes from the connecting portion 120. When the connecting portion 120 is inserted into the steering knuckle 200, the limiting substrate 1125 can abut against the surface of the steering knuckle 200 to limit the assembly of the wheel speed sensor 100 and the steering knuckle 200. Furthermore, the wheel speed sensor 100 will not move along the first direction (e.g., the S direction shown in the diagram). Figure 2 The P direction shown in the figure is swayed, thereby enabling control of the reading distance between the first part 111 passing through the steering knuckle 200 and the wheel.

[0077] 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 wheel speed sensor, characterized in that, include: The outer casing includes a first part, a connecting part, and a second part connected sequentially along a first direction; wherein, The first part has a sensor head inside, and the second part has a port inside, which is used to connect with a vehicle. The connecting portion has an external thread, and the first portion is used to pass through a threaded hole in the external part so that the external thread of the connecting portion connects with the threaded hole in the external part.

2. The wheel speed sensor according to claim 1, characterized in that, The connecting part includes a connecting body and a metal threaded ring that wraps around the connecting body, and the external thread is provided on the metal threaded ring.

3. The wheel speed sensor according to claim 2, characterized in that, The first part, the connecting body, and the second part are injection molded.

4. The wheel speed sensor according to claim 1, characterized in that, The outer wall of one side of the second part is provided with a first guide portion and a second guide portion extending along the first direction, the first guide portion and the second guide portion are spaced apart along the second direction, the first guide portion, the second guide portion and the second part define an assembly groove, the assembly groove is used to fit and insert with a vehicle; the second direction intersects with the first direction.

5. The wheel speed sensor according to claim 4, characterized in that, The second part has a protrusion located between the first guide part and the second guide part and within the assembly groove. The protrusion is used to engage with the vehicle.

6. The wheel speed sensor according to claim 1, characterized in that, The second part has a limiting substrate, which protrudes from the connecting part along a second direction or a third direction; the second direction, the third direction, and the first direction intersect each other.

7. A vehicle, characterized in that, The device includes a steering knuckle and a wheel speed sensor as described in any one of claims 1 to 6, wherein the steering knuckle has a threaded receiving hole having an internal thread; a first portion of the wheel speed sensor passes through the threaded receiving hole of the steering knuckle such that the external thread of the connecting portion is threadedly connected to the internal thread of the threaded receiving hole.

8. The vehicle according to claim 7, characterized in that, The vehicle also includes wheels, the steering knuckle is connected to the wheels, and the first part of the wheel speed sensor is disposed opposite to the wheels.

Images