Wheel speed sensor and automobile

Abstract

The utility model discloses a wheel speed sensor and an automobile, and the wheel speed sensor comprises a housing which comprises an installation part which is disposed at one end of the housing and is used for being connected with an external steering knuckle; an extension portion extending in a first direction; the sensing part, the mounting part, the extension part and the sensing part are sequentially connected, the sensing part comprises a first sensing surface, the first sensing surface extends along a second direction and is used for facing and being parallel to a sensing surface of an external target wheel, the second direction intersects with the first direction, and the second direction is not perpendicular to the first direction; and the chip is arranged in the sensing part and comprises a chip sensing surface, the first sensing surface is parallel to the chip sensing surface, and the chip is used for being connected with an external cable. According to the wheel speed sensor, the included angle between the first induction surface and the extension part can be changed, namely the position relation of the installation part relative to the induction part is changed, and the flexible and changeable installation mode of the wheel speed sensor is achieved on the premise that the first induction surface always keeps facing and being parallel to the induction surface of an external target wheel.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of wheel speed sensor, especially a wheel speed sensor and car. BACKGROUND

[0002] In the field of modern automobile engineering, the wheel speed sensor can read the rotation of the wheel and convert it into a vehicle speed signal, and then provide vehicle speed information for various control systems of the vehicle, such as ABS (Anti-lock Braking System), ESP (Electronic Stability Program), etc., to ensure the stable driving and safe operation of the vehicle.

[0003] The current design requirements for the sensing surface of the wheel speed sensor are that the internal chip of the sensor and the sensing surface are parallel and have a fixed distance to ensure that the wheel rotation can be read, thereby realizing signal output and vehicle speed conversion. The sensor includes a mounting portion, an elongated portion, and a sensing portion. The extension direction of the mounting portion is perpendicular to the extension direction of the elongated portion, and the extension direction of the sensing portion is the same as the extension direction of the elongated portion. The reading mode of the wheel speed sensor is only divided into side reading and bottom reading. The sensing surface of the wheel speed sensor is provided on the sensing portion. Side reading means that the sensing surface is provided on the side surface of the sensing portion. At this time, the extension direction of the sensing surface is the same as the extension direction of the elongated portion, and the extension direction of the sensing surface is perpendicular to the extension direction of the mounting portion. Bottom reading means that the sensing surface is provided on the end surface of the sensing portion. At this time, the extension direction of the sensing surface is perpendicular to the extension direction of the elongated portion, and the extension direction of the sensing surface is the same as the extension direction of the mounting portion. This means that the included angle between the sensing surface and the elongated section is limited to 0° (180°) or 90°, which cannot meet the more complex and variable vehicle installation requirements.

[0004] Regardless of the bottom reading or side reading mode, the wheel speed sensor can usually only perceive the wheel speed information from a fixed angle. This fixed angle perception mode exposes many problems when facing the diversified structure design of different vehicle models. On the one hand, in compact vehicles or vehicles with special design architecture, due to the existence of vehicle structure, suspension system and other surrounding components, limited space and compact layout between components, it is difficult to find an ideal installation position to make the sensor operate in the best working state. This will cause a certain degree of deviation in the assembly requirements of the sensor and the target wheel, and then affect the sensing sensitivity and accuracy.

[0005] On the other hand, in the subsequent use stage of the sensor, due to the harsh working environment, the sensor is affected by factors such as wear, dust pollution, collision damage, etc., and needs to be regularly inspected and maintained to ensure its performance stability and reliability. However, due to the unsatisfactory installation position in the early stage and the high complexity of the vehicle structure, the maintenance work of the sensor becomes difficult. The maintenance personnel need to spend more effort to disassemble the surrounding parts before they can check, repair or replace the sensor, which not only increases the vehicle maintenance cost and time cost, but also reduces the use efficiency and reliability of the vehicle to some extent, causing many inconveniences and troubles to the vehicle owner and the automobile manufacturer.

[0006] In summary, the existing sensing surface design of the automobile wheel speed sensor has shown limitations and deficiencies in dealing with complex and variable vehicle structures and use requirements, and there is an urgent need for a new, more flexible and adaptable design scheme to break through these bottlenecks, to improve the performance, installation convenience and maintenance efficiency of the wheel speed sensor, and to further protect the driving safety and performance of the automobile. Practical new type content

[0007] The purpose of the present application is to solve the problem that the existing sensing surface design of the automobile wheel speed sensor cannot cope with complex and variable vehicle structures and use requirements. The present application provides a wheel speed sensor and an automobile, which can change the size of the included angle between the first sensing surface and the elongated portion, i.e. change the positional relationship of the mounting portion relative to the sensing portion, and realize a flexible and variable installation mode of the wheel speed sensor under the premise that the first sensing surface always remains oriented and parallel to the sensing surface of the target wheel outside.

[0008] To solve the above technical problems, the embodiment of the present application discloses a wheel speed sensor, which comprises:

[0009] A housing, the housing comprises:

[0010] A mounting portion, the mounting portion is arranged at one end of the housing, and the mounting portion is used for connecting with a steering knuckle outside;

[0011] An elongated portion, the elongated portion extends along a first direction;

[0012] A sensing portion, the mounting portion, the elongated portion and the sensing portion are connected in sequence, the sensing portion comprises a first sensing surface, the first sensing surface extends along a second direction, the first sensing surface is used for the sensing surface oriented and parallel to the target wheel outside, the second direction intersects with the first direction, and the second direction is not perpendicular to the first direction;

[0013] A chip is arranged in the sensing portion, the chip comprises a chip sensing surface, the first sensing surface is parallel to the chip sensing surface, and the chip is used for connecting with a cable line outside.

[0014] According to the technical scheme, the extending direction (i.e., the second direction) of the first sensing surface intersects with the extending direction (i.e., the first direction) of the elongated portion but is not perpendicular to the extending direction of the elongated portion, thereby breaking the limitation that the angle between the sensing surface and the elongated portion can only be 0° (180°) or 90° in the traditional technology, and the variability of the angle between the first sensing surface and the elongated portion is realized. Therefore, the wheel speed sensor can cope with the multi-angle sensing requirement, and in the face of various complex vehicle structures, the angle between the first sensing surface and the elongated portion, i.e., the angle between the first direction and the second direction, can be changed, so that the first sensing surface always remains the sensing surface facing and parallel to the target wheel outside, and the wheel speed sensor can stably and accurately sense the wheel speed information.

[0015] Secondly, from the perspective of vehicle assembly, by changing the angle between the first sensing surface and the elongated portion, i.e., changing the positional relationship of the mounting portion relative to the sensing portion, the mounting portion can be more conveniently connected with the existing mounting hole of the vehicle body, and it is not necessary to design a special mounting hole on the vehicle body to realize the positioning and installation of the wheel speed sensor, thereby simplifying the production and manufacturing process of the vehicle and reducing the process complexity in the production process.

[0016] In summary, by changing the angle between the first sensing surface and the elongated portion, i.e., changing the positional relationship of the mounting portion relative to the sensing portion, the flexible and variable installation mode of the wheel speed sensor is realized under the premise that the first sensing surface always remains the sensing surface facing and parallel to the target wheel outside.

[0017] According to another specific embodiment of the present application, the sensing portion comprises an extending surface, one end of the extending surface is connected with the elongated portion, the other end of the extending surface is connected with the first sensing surface perpendicularly, the angle between the extending direction of the extending surface and the first direction is a first angle, and the first angle is greater than 0° and less than 180°.

[0018] According to the technical scheme, in view of the requirement that the first sensing surface always remains the sensing surface facing and parallel to the target wheel outside, when facing a compact vehicle or a vehicle with a special design architecture, only by changing the size of the angle between the extending direction of the extending surface and the first direction (i.e., the first angle), the positional relationship of the mounting portion relative to the sensing portion can be changed. Therefore, the wheel speed sensor in the technical scheme can break away from the constraint of the traditional installation mode, realize the flexible and variable installation mode, and thus can be successfully installed in a complex and diverse vehicle structure environment.

[0019] According to another specific embodiment of the present application, the wheel speed sensor comprises a skeleton, the skeleton is arranged in the shell, and the skeleton comprises:

[0020] The fixing part is arranged on the elongated part, and is used for fixing the cable line from the outside world;

[0021] The chip accommodating part is connected with the fixing part, the chip accommodating part is arranged on the sensing part, and the chip is fixed on the chip accommodating part.

[0022] According to another specific embodiment of the present application, the skeleton comprises a plurality of positioning members, along a third direction, a part of the plurality of positioning members are arranged on both ends of the fixing part, another part of the plurality of positioning members are arranged on both ends of the chip accommodating part, and the third direction is perpendicular to the first direction.

[0023] By adopting the above technical scheme, since the shell of the wheel speed sensor is formed by injection molding, in the injection molding mold, the skeleton is fixed by the plurality of positioning members, and then the shell is injection molded.

[0024] According to another specific embodiment of the present application, the fixing part comprises a plug-in piece, the plug-in piece comprises a cable line accommodating groove, the cable line accommodating groove is used for placing the cable line from the outside world, so that the plug-in piece is connected with the cable line from the outside world.

[0025] According to another specific embodiment of the present application, the fixing part comprises a plurality of first limiting structures, along the second direction, the plurality of first limiting structures are arranged on one side of the fixing part, along a third direction, the plurality of first limiting structures are arranged at intervals to form a cable line placing groove, and the cable line placing groove is used for placing the cable line from the outside world.

[0026] According to another specific embodiment of the present application, the chip comprises:

[0027] The chip body comprises the chip sensing surface, and the chip body is fixed on the chip accommodating part;

[0028] The chip pin is connected with the chip body at one end, is arranged on the plug-in piece and is connected with the plug-in piece at the other end, and the other end of the chip pin is used for being connected with the cable line from the outside world, so as to realize signal transmission.

[0029] According to another specific embodiment of the present application, the chip accommodating part comprises a second limiting structure, along the second direction, the second limiting structure is arranged on one end of the chip accommodating part to form a pin placing groove, and the pin placing groove is used for placing the chip pin.

[0030] The second limiting structure is arranged, so that adjacent chip pins are prevented from being in contact to cause short circuit of the chip.

[0031] The embodiment of the utility model discloses a kind of cars, and the car includes:

[0032] The wheel speed sensor of any one of the preceding description;

[0033] Knuckle, the mounting portion of the wheel speed sensor is connected with;

[0034] Cable, the chip of the wheel speed sensor is connected with;

[0035] Target wheel, the first induction surface of the wheel speed sensor is towards and parallel to the induction surface of the target wheel.

[0036] According to another specific embodiment of the utility model, the cable is placed in cable placement groove, and one end of the cable is connected with the chip pin of the chip. BRIEF DESCRIPTION OF DRAWINGS

[0037] Figure 1 Show the three-dimensional view of the wheel speed sensor and target wheel of the embodiment of the utility model Figure 1 .

[0038] Figure 2 Show the three-dimensional view of the wheel speed sensor and target wheel of the embodiment of the utility model Figure 2 .

[0039] Figure 3 Show the three-dimensional view of the wheel speed sensor and target wheel of the embodiment of the utility model Figure 3 .

[0040] Figure 4 Show the connection schematic diagram of the framework, chip and cable of the embodiment of the utility model Figure 1 .

[0041] Figure 2 Show the connection schematic diagram of the framework, chip and cable of the embodiment of the utility model Figure 6 .

[0042] Figures 1 to 4 Show the three-dimensional view of the framework of the embodiment of the utility model.

[0043] REFERENCE SIGNS

[0044] Wheel speed sensor 100;

[0045] Housing 10;

[0046] Mounting portion 11;

[0047] Extension portion 12;

[0048] sensing portion 13; first sensing surface 131; extension surface 132;

[0049] chip 20;

[0050] chip body 21; chip sensing surface 211;

[0051] chip pin 22;

[0052] skeleton 30;

[0053] fixing portion 31; plug 311; cable accommodating groove 3111; first limiting structure 312; placing groove 313;

[0054] chip accommodating portion 32; second limiting structure 321; pin placing groove 322;

[0055] positioning member 33;

[0056] cable 200;

[0057] target wheel 300; protruding tooth 310; upper surface 3110; missing tooth 320. DETAILED DESCRIPTION

[0058] The above embodiments of the present application will vary in specifics with those skilled in the art appreciating other advantages and utility of the present application from the disclosure herein. Although the present application will be described in conjunction with a preferred embodiment, it is not intended that the present application be limited to such embodiment. On the contrary, it is intended to cover alternatives, modifications, and equivalents, which can be included within the scope of the present application as defined by the appended claims. In order to provide a thorough and enabling disclosure of said application as it pertains to those skilled in the art, numerous specific details are set forth in the following description. Additionally, no specific details are set forth in order not to obscure the related details, and in order to provide a more thorough and enabling disclosure for the state of the art. No element, act, or event is required, more or less, unless explicitly described as such. It is possible, however, for the concepts of this application to be practiced with the aid of some, but not other, details. Further, the purpose of the above summary is to enable the patent applicant to comply with 37 C.F.R. § 1.73, requiring a patent application to contain a summary of the application. Further, it is intended that the scope of the application be defined by the claims appended hereto rather than by the specific disclosure provided herein.

[0059] It should be noted that in this specification and the accompanying drawings, similar elements and / or acts are designated with like reference numerals and letters when describing specific embodiments of implementations. Therefore, once an element is defined in one place, there is no need to further describe it in other places.

[0060] In the description of the present embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom" and the like indicate the orientation or positional relationship based on the orientation or positional relationship shown in the drawings, or the orientation or positional relationship in which the utility model product is usually placed, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.

[0061] The terms "first", "second", and the like are only used for differentiation in description, and cannot be understood as indicating or implying relative importance.

[0062] In the description of the present embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "provided", "connected", "connected" should be broadly understood, for example, it can be fixedly connected, or it can be detachably connected, or integrally connected; it can be mechanically connected, or it can be electrically connected; it can be directly connected, or it can be indirectly connected through an intermediate medium, or it can be connected inside two elements. For those skilled in the art, the specific meaning of the above terms in the present embodiment can be understood according to the specific circumstances.

[0063] In order to make the purpose, technical scheme and advantages of the utility model more clear, the embodiments of the utility model will be further described in detail below with reference to the drawings.

[0064] Reference Figure 5 The present embodiment provides an automobile (not shown in the figure), which comprises a wheel speed sensor 100, a knuckle (not shown in the figure), a cable 200 and a target wheel 300. The target wheel 300 is taken as an example of a gear ring, but is not limited to a gear ring, and can also be a magnetic encoder and the like. The target wheel 300 comprises a plurality of convex teeth 310 and missing teeth 320 arranged at intervals along a circumferential direction R, and the sensing surface of the target wheel 300 is the upper surface 3110 of the convex tooth 310.

[0065] It should be noted that the knuckle in the present technical solution is a component where the body mounting hole is located. In other possible embodiments, the wheel speed sensor 100 can also be mounted on the hub end cover.

[0066] In combination Figure 3 The wheel speed sensor 100 comprises a shell 10 and a chip 20, and the shell 10 comprises a mounting portion 11, an elongated portion 12 and a sensing portion 13. Along a first direction X, the mounting portion 11 is arranged at one end of the shell 10, and the mounting portion 11 is connected with the knuckle. The elongated portion 12 extends along the first direction X, and the mounting portion 11, the elongated portion 12 and the sensing portion 13 are connected in sequence.

[0067] The induction part 13 comprises a first induction surface 131 extending along a second direction Y, the first induction surface 131 is oriented towards and parallel to the induction surface of the target wheel 300, that is, the first induction surface 131 is oriented towards and parallel to the upper surface 3110 of the convex tooth 310 closest to the first induction surface 131, the second direction Y intersects the first direction X, and the second direction Y is not perpendicular to the first direction X.

[0068] The chip 20 is arranged in the induction part 13, the chip 20 comprises a chip induction surface 211, the first induction surface 131 is parallel to the chip induction surface 211, and the chip 20 is connected with the cable 200.

[0069] It should be noted that the sensor is a sensor with a wire and a straight insertion sensor, when the wheel speed sensor 100 is the sensor with a wire, the chip 20 is connected with the cable 200; when the wheel speed sensor 100 is the straight insertion sensor, the chip 20 is connected with the pin.

[0070] By adopting the technical scheme, the wheel speed sensor 100 can meet the induction requirement of multiple angles, and can be installed in various complex vehicle structures. Figure 3 In terms of the structural design of the wheel speed sensor 100, by setting the extension direction (that is, the second direction Y) of the first induction surface 131 to intersect but not be perpendicular to the extension direction (that is, the first direction X) of the elongated part 12, the limitation that the angle between the induction surface and the elongated part is only 0° (180°) or 90° in the traditional technology is broken, and the variability of the angle a between the first induction surface 131 and the elongated part 12 is realized. Therefore, the wheel speed sensor 100 can cope with the induction requirement of multiple angles, and can face various complex vehicle structures, and by changing the size of the angle a between the first induction surface 131 and the elongated part 12, that is, the size of the angle a between the first direction X and the second direction Y, the first induction surface 131 can always be oriented towards and parallel to the induction surface of the target wheel 300, so that the wheel speed sensor 100 can stably and accurately induce the wheel speed information.

[0071] Secondly, from the perspective of vehicle assembly, by changing the size of the angle a between the first induction surface 131 and the elongated part 12, that is, changing the positional relationship of the mounting part 11 relative to the induction part 13, the mounting part 11 can be more conveniently connected with the existing mounting hole of the vehicle body, and it is not necessary to design a special mounting hole on the vehicle body to realize the positioning and installation of the wheel speed sensor 100, so that the production and manufacturing process of the vehicle is simplified, and the process complexity in the production process is reduced.

[0072] In summary, by changing the size of the angle a between the first induction surface 131 and the elongated part 12, that is, changing the positional relationship of the mounting part 11 relative to the induction part 13, a flexible and variable installation mode of the wheel speed sensor 100 is realized on the premise that the first induction surface 131 always maintains the orientation towards and parallel to the induction surface of the target wheel 300.

[0073] It should be noted that the value of the included angle a between the first sensing surface 131 and the elongated portion 12 is not specifically limited in the embodiments of the present application. For example, in other possible embodiments, the value of the included angle a between the first sensing surface 131 and the elongated portion 12 can be an acute angle or an obtuse angle, such as 42°, 55.3°, 97°, etc.

[0074] In some possible embodiments, referring to Figures 3 to 5 The sensing portion 13 includes an extension surface 132, one end of the extension surface 132 is connected with the elongated portion 12, the other end of the extension surface 132 is connected with the first sensing surface 131 perpendicularly, the extension direction of the extension surface 132 and the first direction X form a first angle β, the first angle β is greater than 0° and less than 180°.

[0075] With the above technical solution, since the first sensing surface 131 needs to be always directed to and parallel to the sensing surface of the target wheel 300, when facing a compact vehicle or a vehicle with a special design architecture, only by changing the size of the included angle between the extension direction of the extension surface 132 and the first direction X (i.e. the first angle β), the positional relationship between the mounting portion 11 and the sensing portion 13 can be changed. Therefore, the wheel speed sensor 100 in the technical solution can break away from the shackles of the traditional mounting mode, realize a flexible and variable mounting mode, and thus can be successfully installed in a complex and diverse vehicle structure environment.

[0076] It should be noted that the value of the first angle β is not specifically limited in the embodiments of the present application. For example, in other possible embodiments, the value of the first angle β can be 113°, 136°, 155.3°, etc.

[0077] In some possible embodiments, referring to Figure 5 The wheel speed sensor 100 includes a skeleton 30, which is arranged in the housing 10. The skeleton 30 includes a fixing portion 31 and a chip accommodating portion 32. The fixing portion 31 is arranged in the elongated portion 12 and is used for fixing the cable 200. The chip accommodating portion 32 is connected with the fixing portion 31, is arranged in the sensing portion 13, and the chip 20 is fixed in the chip accommodating portion 32.

[0078] In some possible embodiments, referring to Figure 4 The skeleton 30 includes four positioning members 33. Along the third direction Z, two positioning members 33 are protrudingly arranged at two ends of the fixing portion 31, and the other two positioning members 33 are protrudingly arranged at two ends of the chip accommodating portion 32, and the third direction Z is perpendicular to the first direction X.

[0079] With the above technical solution, since the housing 10 of the wheel speed sensor 100 is formed by injection molding, in the injection molding mold, the skeleton 30 is fixed by the plurality of positioning members 33, and then the housing 10 is injection molded.

[0080] It should be noted that the number of the positioning members 33 is not limited in the embodiments of the present application. For example, in other possible embodiments, the number of the positioning members 33 can be three, five, six, etc.

[0081] In some possible embodiments, referring to Figure 6 and Figure 4 The fixing portion 31 includes two insertion pieces 311, and the insertion piece 311 includes a cable accommodating groove 3111 for placing the cable 200 so that the insertion piece 311 is connected with the cable 200.

[0082] It should be noted that when the wheel speed sensor 100 is a cable sensor, the insertion piece 311 includes the cable accommodating groove 3111, and the chip 20 is connected with the cable 200; when the wheel speed sensor 100 is a direct insertion sensor, the insertion piece 311 includes a pin accommodating groove, and the chip 20 is connected with the pin.

[0083] It should be noted that the number of the insertion pieces 311 is not limited in the embodiments of the present application. For example, in other possible embodiments, the number of the insertion pieces 311 can be three, four, five, etc.

[0084] In some possible embodiments, referring to Figure 6 and Figure 4 The fixing portion 31 includes three first limiting structures 312, and along the second direction Y, more than three first limiting structures 312 are protruded on one side of the fixing portion 31. Along the third direction Z, the three first limiting structures 312 are arranged at intervals to form two cable placing grooves 313, and the cable 200 is arranged in the cable placing grooves 313.

[0085] It should be noted that the number of the first limiting structures 312 is not limited in the embodiments of the present application. For example, in other possible embodiments, the number of the first limiting structures 312 can be two, four, five, etc.

[0086] In some possible embodiments, referring to Figure 5 and Figures 4 to 6 The chip 20 includes a chip body 21 and two chip pins 22. The chip body 21 includes a chip sensing surface 211, and the chip body 21 is fixed to the chip accommodating portion 32. One end of the chip pin 22 is connected with the chip body 21, and the other end of the chip pin 22 is arranged on the insertion piece 311 and connected with the insertion piece 311, and the other end of the chip pin 22 is connected with the cable 200 to realize signal transmission.

[0087] It should be noted that the number of chip pins 22 is not specifically limited in the embodiments of the present application, for example, in other possible embodiments, the number of chip pins 22 can be three, four, five, etc.

[0088] In some possible embodiments, referring to ​ The chip accommodating portion 32 comprises a second limiting structure 321, which is protruded from one end of the chip accommodating portion 32 along the second direction Y to form a pin placing groove 322 for placing the chip pins 22.

[0089] By adopting the above technical solution, the second limiting structure 321 is arranged to avoid the short circuit of the chip 20 caused by the contact between the adjacent chip pins 22.

[0090] Although the present application has been illustrated and described with reference to certain preferred embodiments thereof, it should be understood that the above description is intended to be illustrative only and not limiting of the application. Changes can be made in form and detail by those skilled in the art without departing from the spirit and scope of the application.

Claims

1. A wheel speed sensor, characterized by, The wheel speed sensor comprises: a housing comprising: a mounting portion provided at one end of the housing, the mounting portion being configured to be connected to a steering knuckle of an external environment; an elongated portion extending in a first direction; a sensing portion connected to the mounting portion and the elongated portion in sequence, the sensing portion comprising a first sensing surface extending in a second direction, the first sensing surface being configured to face and be parallel to a sensing surface of a target wheel of an external environment, the second direction intersecting the first direction, and the second direction being not perpendicular to the first direction; a chip provided in the sensing portion, the chip comprising a chip sensing surface, the first sensing surface being parallel to the chip sensing surface, and the chip being configured to be connected to a cable of an external environment.

2. The wheel speed sensor of claim 1, wherein, The sensing portion comprises an extension surface, one end of the extension surface being connected to the elongated portion, and the other end of the extension surface being connected to the first sensing surface perpendicularly, an angle between an extension direction of the extension surface and the first direction being a first angle, the first angle being greater than 0° and less than 180°.

3. The wheel speed sensor of claim 1, wherein, The wheel speed sensor comprises a skeleton provided in the housing, the skeleton comprising: a fixing portion provided at the elongated portion, the fixing portion being configured to fix the cable of the external environment; a chip accommodating portion connected to the fixing portion, the chip accommodating portion being provided at the sensing portion, and the chip being fixed to the chip accommodating portion.

4. The wheel speed sensor of claim 3, wherein, The skeleton comprises a plurality of positioning members, along a third direction, a part of the plurality of positioning members being provided at two ends of the fixing portion, and another part of the plurality of positioning members being provided at two ends of the chip accommodating portion, the third direction being perpendicular to the first direction.

5. The wheel speed sensor of claim 3, wherein, The fixing portion comprises an insertion sheet, the insertion sheet comprising a cable accommodating groove configured to place the cable of the external environment, so that the insertion sheet is connected to the cable of the external environment.

6. The wheel speed sensor of claim 3, wherein, The fixing portion comprises a plurality of first limiting structures, along the second direction, the plurality of first limiting structures being provided at one side of the fixing portion, and along the third direction, the plurality of first limiting structures are arranged at intervals to form a cable placing groove configured to place the cable of the external environment.

7. The wheel speed sensor of claim 3, wherein, The chip comprises: a chip body comprising the chip sensing surface, the chip body being fixed to the chip accommodating portion; a chip pin, one end of the chip pin being connected to the chip body, the other end of the chip pin being provided on the insertion sheet and connected to the insertion sheet, and the other end of the chip pin being configured to be connected to the cable of the external environment to realize signal transmission.

8. The wheel speed sensor of claim 3, wherein, The chip accommodating portion comprises a second limiting structure, along the second direction, the second limiting structure being provided at one end of the chip accommodating portion to form a pin placing groove configured to place the chip pin.

9. An automobile characterized by comprising: The automobile comprises: the wheel speed sensor according to any one of claims 1 to 8; a steering knuckle connected to the mounting portion of the wheel speed sensor; a cable connected to the chip of the wheel speed sensor; a target wheel, the first sensing surface of the wheel speed sensor facing and being parallel to a sensing surface of the target wheel.

10. The vehicle of claim 9, wherein, The cable wire is arranged in a cable wire placing groove, and one end of the cable wire is connected with a chip pin of the chip.

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