Wheel speed sensor framework and wheel speed sensor

Abstract

The utility model provides a wheel speed sensor framework and a wheel speed sensor. The wheel speed sensor skeleton comprises a skeleton body and a terminal. The framework body comprises a plastic main body and a conducting strip; and the conducting strip is positioned at the upper end of the plastic main body and is connected with the terminal. According to the invention, the die development of the wheel speed sensor skeleton and the development of production line tools can be reduced, and the development cost and time period are effectively reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of wheel speed sensor, and relates to a wheel speed sensor framework and a wheel speed sensor. BACKGROUND

[0002] The wheel speed sensor is a sensor for measuring the rotation speed of a vehicle wheel. For modern vehicles, wheel speed information is essential, and the vehicle dynamic control system (VDC), the automobile electronic stability program (ESP), the anti-lock braking system (ABS), the control system of the automatic transmission and the like all need wheel speed information. Therefore, the wheel speed sensor is one of the most critical sensors in modern vehicles.

[0003] At present, the wheel speed sensor has a direct insertion type without a wire harness and a wire harness type with a wire harness, and the main plant selects which type of wheel speed sensor to use according to the vehicle body environment. Among them, the head of the wire harness type wheel speed sensor mainly includes a framework, a bushing, a wire harness and a chip, and the head of the direct insertion type wheel speed sensor only has a bushing, a framework and a chip. Unlike the wheel speed sensor framework of the wire harness type, which has realized the application of the platform, the wheel speed sensor framework of the direct insertion type needs to be newly developed according to the needs of different frameworks at present, and the production line needs to develop different toolings according to different frameworks, which increases the development cost and prolongs the development cycle. CONTENT OF THE UTILITY MODEL

[0004] The application aims to provide a wheel speed sensor framework and a wheel speed sensor, which are used to solve the technical problems of long development cycle and high production cost of the direct insertion type wheel speed sensor framework in the prior art.

[0005] In a first aspect, the application provides a wheel speed sensor framework, which comprises a framework body and a terminal.

[0006] The framework body comprises a plastic body and a conductive sheet.

[0007] The conductive sheet is located on the upper end of the plastic body and is connected with the terminal.

[0008] In some embodiments of the first aspect of the application, the conductive sheet is riveted and connected with the terminal.

[0009] In some embodiments of the first aspect of the application, the framework body is fixed with a sensor chip through welding.

[0010] In some embodiments of the first aspect of the application, the wheel speed sensor framework and the bushing form a wheel speed sensor shell through injection molding.

[0011] In some embodiments of the first aspect of the application, the bushing is made of metal.

[0012] In some embodiments of the first aspect of the present application, the skeleton body is connected with a wire harness to transmit signals generated by the sensor chip to an external circuit.

[0013] In some embodiments of the first aspect of the present application, the conductive sheet is riveted to the wire harness.

[0014] In the second aspect, the present application provides a wheel speed sensor, comprising a sensor body; the sensor body comprises a sensor chip and a wheel speed sensor skeleton as described above; the wheel speed sensor skeleton is fixed to the sensor chip by welding.

[0015] In some embodiments of the second aspect of the present application, the wheel speed sensor further comprises a bushing; the wheel speed sensor body and the bushing form a wheel speed sensor shell by injection molding.

[0016] In some embodiments of the second aspect of the present application, the wheel speed sensor skeleton is connected with a wire harness to transmit signals generated by the sensor chip to an external circuit.

[0017] As described above, the wheel speed sensor skeleton and the wheel speed sensor according to the present application have the following beneficial effects: the wheel speed sensor skeleton provided by the present application comprises a skeleton body and a terminal, and different terminal structures can be designed according to the needs of different manufacturers, which can realize the platform design of the skeleton, thereby effectively reducing the development of the skeleton mold and the development of the production line tooling, and effectively reducing the development cost and the time period. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 A structure schematic diagram of the wheel speed sensor skeleton according to the embodiments of the present application is shown.

[0019] Figure 2 A schematic diagram of the terminal according to the embodiments of the present application is shown.

[0020] Figure 3 A structure schematic diagram of another terminal according to the embodiments of the present application is shown.

[0021] Figure 4 An assembly schematic diagram of the wheel speed sensor according to the embodiments of the present application is shown.

[0022] ELEMENT NUMBER EXPLANATION

[0023] 1 Wheel speed sensor skeleton

[0024] 11 Skeleton body

[0025] 111 Plastic body

[0026] 112 Conductive sheet

[0027] 12 Terminal

[0028] 2 sensor chip

[0029] 3 bushing

[0030] 3 plastic particles

[0031] 4 wheel speed sensor housing DETAILED DESCRIPTION

[0032] The present application is illustrated by way of specific examples below, and other advantages and effects of the present application can be easily understood by those skilled in the art from the disclosure herein. The present application can also be implemented or applied in other different specific embodiments, and various modifications or changes can be made to the details herein based on different views and applications without departing from the spirit of the present application. It should be noted that the following examples and features in the examples can be combined with each other without conflict.

[0033] It should be noted that the drawings provided in the following examples only schematically illustrate the basic concepts of the present application, and only the components related to the present application are shown in the drawings, not the number, shape and size of the components when actually implemented. The shapes, numbers and proportions of the components when actually implemented can be arbitrarily changed, and the layout pattern of the components can also be more complex.

[0034] In the embodiments of the present application, "first", "second", and the like are used to distinguish the same items or similar items with basically the same function and effect. For example, the first preset mold and the second preset mold are only used to distinguish different preset molds, which are designed for different installation component molds corresponding to different customer requirements, and do not limit the sequence. Those skilled in the art can understand that "first", "second", and the like do not limit the number and execution sequence, and "first", "second", and the like do not necessarily mean different.

[0035] The following examples of the present application provide a wheel speed sensor skeleton and a wheel speed sensor. By splitting the wheel speed sensor skeleton into a skeleton body and a terminal structure, different terminal structures can be designed according to the needs of different manufacturers, which can realize the universality of the skeleton, thereby effectively reducing the development of the skeleton mold and the development of the production line tooling, and effectively reducing the development cost and time period.

[0036] The principles and implementation modes of the wheel speed sensor skeleton and the wheel speed sensor of the present embodiment will be described in detail below with reference to the accompanying drawings, so that those skilled in the art can understand the wheel speed sensor skeleton and the wheel speed sensor of the present embodiment without creative labor.

[0037] Please refer to Figures 1 to 4As shown, the present application provides a wheel speed sensor skeleton, which comprises a skeleton body 11 and a terminal 12. The skeleton body 11 comprises a plastic body 111 and a conductive sheet 112. The conductive sheet 112 is located on the upper end of the plastic body 111 and is connected with the terminal 12.

[0038] Further, the conductive sheet 111 is riveted and connected with the terminal 12. When a straight-in wheel speed sensor is selected according to the vehicle body environment, the terminal 12 is designed according to the project needs, and the terminal 12 is riveted and connected with the conductive sheet 112 to realize the electrical path conduction.

[0039] Figure 2 A structural schematic diagram of the terminal 12 provided by the embodiment of the present application is shown. Figure 3 Another structural schematic diagram of the terminal 12 provided by another embodiment of the present application is shown. As can be seen, the present application can actually design terminals 12 of different structures according to the vehicle body environment and the wheel speed detection needs, and connect the terminals 12 with the skeleton body 11 to realize the circuit conduction. That is, when different wheel speed sensor skeletons need to be designed, the skeleton body 11 actually does not need to be redesigned, and only the terminal 12 needs to be redeveloped and connected with the skeleton body 11 to realize the platform use of the wheel speed sensor skeleton 1, thereby effectively reducing the development cost and the development time period.

[0040] Further, please continue to refer to Figure 4 As shown, the skeleton body 11 is fixed by welding the sensor chip 2. The skeleton body 11 in the present application comprises a plastic body 111 and a conductive sheet 112. In fact, the skeleton body 11 is a skeleton of a wire harness type wheel speed sensor, which realizes the circuit conduction through the riveting of the conductive sheet 112 and the wire harness. Among them, the wire harness refers to a collection of wires composed of multiple wires or cables, which are usually bundled together and may contain protective sleeves or other types of insulation materials. The wire harness is used to transmit electrical signals or power in electrical and electronic systems, and is an important part of connecting various electronic components and devices. That is, the skeleton body 11 is a skeleton of a wire harness type wheel speed sensor, which is connected with the wire harness to transmit the signals generated by the sensor chip 2 to the external circuit.

[0041] When the sensor chip 2 is fixed by welding the skeleton body 11, the sensor chip 2, the skeleton body 11 and the terminal 12 actually form an integral whole, at which time the data in the sensor chip 2 will be transmitted to the external circuit through the terminal 12, the conductive sheet 112 and the wire harness, thereby being able to detect the wheel speed of the vehicle.

[0042] Further, please continue to refer to Figure 4As shown, the wheel speed sensor skeleton 1 and the bushing 3 form a wheel speed sensor shell 4 through injection molding. Through the injection molding process, the wheel speed sensor can be integrally formed, thereby improving the compactness and integrity of the sensor and enhancing its stability and reliability during use.

[0043] In some embodiments, the bushing 3 is made of metal. The metal bushing 3 has high strength and durability, which can adapt to various conditions in the automotive working environment. That is, the bushing 3 ensures that the sensor can be stably installed on the corresponding position of the vehicle, thereby ensuring that the wheel speed sensor can accurately detect the rotational speed of the wheel. At the same time, the bushing 3 can also improve the durability and reliability of the wheel speed sensor, so that it can work stably for a long time in harsh automotive working environments.

[0044] In some implementations, the embodiment of the present application also provides a wheel speed sensor, which comprises a sensor body, and the sensor body comprises the wheel speed sensor skeleton 1 and the sensor chip 2 according to any one of the embodiments of the present application.

[0045] The wheel speed sensor skeleton 1 and the sensor chip 2 are fixed by welding.

[0046] Further, the wheel speed sensor further comprises a bushing 3; the sensor body and the bushing 3 form a wheel speed sensor shell 4 through injection molding. Through the injection molding process, the wheel speed sensor can be integrally formed, thereby improving the compactness and integrity of the sensor and enhancing its stability and reliability during use.

[0047] Further, the wheel speed sensor skeleton 1 is connected with a wire harness to transmit the signal generated by the sensor chip 2 to an external circuit.

[0048] In summary, the present application provides a wheel speed sensor skeleton and a wheel speed sensor. The wheel speed sensor skeleton provided by the present application comprises a skeleton body and a terminal. Different terminal structures can be designed according to the needs of different manufacturers, which can realize the universality of the skeleton, thereby effectively reducing the development of the skeleton mold and the development of the production line tooling, and effectively reducing the development cost and time period.

[0049] Therefore, the present application effectively overcomes the various shortcomings in the prior art and has a high industrial utilization value.

[0050] The description of the corresponding flow or structure of each of the above figures has its own emphasis, and the parts not described in detail in a certain flow or structure can be referred to the related description of other flows or structures.

[0051] The above embodiments are only illustrative of the principles of the present application and its effects, and are not intended to limit the present application. Any modification or change made by any person skilled in the art without departing from the spirit and scope of the present application shall be covered by the claims of the present application.

Claims

1. A wheel speed sensor frame, characterized in that, The wheel speed sensor frame includes a frame body and terminals; The skeleton body includes a plastic body and a conductive sheet; The conductive sheet is located at the upper end of the plastic body and is connected to the terminal.

2. The wheel speed sensor frame according to claim 1, characterized in that, The conductive sheet is riveted to the terminal.

3. The wheel speed sensor frame according to claim 1, characterized in that, The sensor chip is fixed to the frame body by welding.

4. The wheel speed sensor frame according to claim 1, characterized in that, The wheel speed sensor frame and bushing are injection molded to form the wheel speed sensor housing.

5. The wheel speed sensor frame according to claim 4, characterized in that, The bushing is made of metal.

6. The wheel speed sensor frame according to claim 3, characterized in that, The skeleton body is connected to the wiring harness to transmit the signal generated by the sensor chip to an external circuit.

7. The wheel speed sensor frame according to claim 6, characterized in that, The conductive sheet is riveted to the wire harness.

8. A wheel speed sensor, characterized in that, It includes a sensor body; the sensor body includes a sensor chip and a wheel speed sensor frame as described in any one of claims 1-7; the wheel speed sensor frame and the sensor chip are fixed together by welding.

9. The wheel speed sensor according to claim 8, characterized in that, The wheel speed sensor also includes a bushing; the wheel speed sensor body and the bushing are injection molded to form the wheel speed sensor housing.

10. The wheel speed sensor according to claim 8, characterized in that, The wheel speed sensor frame is connected to the wiring harness to transmit the signal generated by the sensor chip to an external circuit.

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