Vehicle sensor

Abstract

The application provides a vehicle sensor, which comprises a first chip for detecting acceleration of a suspension, a second chip for detecting wheel speed, a first terminal connected to the first chip, a second terminal connected to the second chip, and a connection socket having a bottom wall and a peripheral wall connected to the bottom wall, the ends of the first and second terminals penetrating into the connection socket from the bottom wall by the same length to form a row of connection terminals of the same configuration. The vehicle sensor realizes the combination of two sensor chips in the way of integrating the terminals of the two sensor chips into a single connector, without introducing an additional circuit board for integrating the signals of the two sensor chips, thereby reducing manufacturing cost and electromagnetic interference.

Description

Technical Field

[0001] This application relates to the field of sensor technology, and more specifically, to a vehicle sensor. Background Technology

[0002] The PSSW (Peripheral Suspension Sensor with Wheel speed sensor) is a composite sensor that combines two previously separate sensors—the PSS (Peripheral Suspension Sensor) and the WSS (Wheel Speed ​​Sensor)—into one, providing two key signals to the electronic control unit simultaneously for systems such as ABS / ESC and suspension.

[0003] The current combination of PSS and WSS sensors mainly involves connecting the signals from the two sensors to a single PCB (Printed Circuit Board), and then outputting them through a shared connector. The connector and the sensor's fixing structure are constructed as an injection molded part.

[0004] It should be noted that the information disclosed in the background section above is only used to enhance the understanding of the background of this disclosure, and therefore may include information that does not constitute prior art known to those skilled in the art. Utility Model Content

[0005] Depending on the specific aspects, one of the problems this application aims to solve is how to optimize the combination of PSS and WSS sensors and the signal output method when they are combined.

[0006] In addition, this application aims to solve or alleviate other technical problems existing in the prior art.

[0007] According to one aspect of this application, the following is provided: An automotive sensor, comprising: The first chip is used to detect the acceleration of the suspension; The second chip is used to detect wheel speed; The first terminal is connected to the first chip; The second terminal is connected to the second chip; A connector has a bottom wall and a peripheral wall connected to the bottom wall. The ends of a first terminal and a second terminal are inserted into the connector from the bottom wall at the same length, forming a row of connector terminals with the same structure.

[0008] Optionally, according to one embodiment of this application, the vehicle sensor further includes a first injection molded part, a second injection molded part, and a third injection molded part, which are sequentially injection molded. The second injection molded part is mounted on the first injection molded part, and the third injection molded part is mounted on the second injection molded part. The first chip and the connection socket are disposed on the first injection molded part, and the second chip is mounted on the third injection molded part.

[0009] Optionally, according to one embodiment of this application, the first injection molded part includes a connecting socket and a first chip receiving portion, the first chip receiving portion is installed on the outside of the connecting socket, the first chip is received in the first chip receiving portion, and the first terminal is inserted into the connecting socket from the bottom wall of the connecting socket.

[0010] Optionally, according to one embodiment of this application, the second injection molded part includes a connecting portion, a flange, and a bushing. The connecting portion is configured to include an annular stop portion and a second connecting pipe axially connected to the annular stop portion. The second connecting pipe is connected to the third injection molded part. The flange is connected to the side of the annular stop portion and has a through hole. The bushing is installed into the through hole.

[0011] Optionally, according to one embodiment of this application, the first injection molded part further includes a first connecting pipe disposed on the bottom, and the first injection molded part is connected to the annular stop portion through the first connecting pipe.

[0012] Optionally, according to one embodiment of this application, a protruding abutment is provided on the flange, the abutment abutting against the peripheral wall of the connection socket in a shape-fitting manner.

[0013] Optionally, according to one embodiment of this application, the third injection molded part is configured as a tube, with one end connected to the second connecting tube and the other end accommodating the second chip and configured to include a detection plane, wherein the second terminal passes through the connecting part from the third injection molded part and enters the bottom wall of the connecting socket.

[0014] Optionally, according to one embodiment of this application, the first injection molded part further includes a protective cover, the protective cover closing the first chip receiving portion, and the extension direction of the flange forming an angle of 0° or 90° with the plane of the protective cover.

[0015] Optionally, according to one embodiment of this application, the third injection molded part has ribs that are uniformly arranged along the periphery and extend along the axial direction at one end near the second injection molded part on its periphery.

[0016] The advantages of this application include: 1. The automotive sensor of this application does not use the method of summarizing the signals of the PSS sensor and the WSS sensor on the same PCB board. Instead, it uses the method of summarizing the terminals of the two into a single socket to form a single connector to realize the signal output of the PSS sensor and the WSS sensor, which avoids electromagnetic interference that may occur on the PCB board and also saves costs. 2. In the automotive sensor of this application, the single connector formed by the two sensor terminals and the sensor fixing structure are constructed using different injection molded parts, so that the sensor fixing structure can be injection molded onto the sensor in a secondary manner, thereby matching different sensor structures and mounting structures and improving the adaptability of the sensor. Attached Figure Description

[0017] Referring to the accompanying drawings, the above and other features of this application will become apparent, wherein, Figure 1 This diagram illustrates the structure of an automotive sensor according to one embodiment of the present application. Figure 2 Showing according to Figure 1 An exploded view of automotive sensors; Figure 3 A schematic diagram of the structure of an automotive sensor according to another embodiment of this application is shown; Figure 4 Showing according to Figure 3 An exploded view of an automotive sensor. Detailed Implementation

[0018] It is readily understood that, based on the technical solution of this application, those skilled in the art can propose various interchangeable structural methods and implementations without altering the essential spirit of this application. Therefore, the following detailed embodiments and accompanying drawings are merely illustrative examples of the technical solution of this application and should not be considered as the entirety of this application or as limitations or restrictions on the technical solution of this application.

[0019] The directional terms such as up, down, left, right, front, back, front, back, top, and bottom mentioned or possibly used in this specification are defined relative to the structures shown in the accompanying drawings. These are relative concepts and may therefore vary depending on their location and usage. Therefore, these or other directional terms should not be interpreted as restrictive. Furthermore, the terms "first," "second," "third," and similar expressions are used for descriptive and distinguishing purposes only and should not be construed as indicating or implying the relative importance of the corresponding components or the order of components or assembly sequence.

[0020] refer to Figure 1The diagram illustrates a structural schematic of an automotive sensor 10 according to one embodiment of this application. The automotive sensor 10 includes a first injection-molded part 100, a second injection-molded part 200, and a third injection-molded part 300, which are sequentially injection-molded. The second injection-molded part 200 is mounted on the first injection-molded part 100, and the third injection-molded part 300 is mounted on the second injection-molded part 200. A first chip 110 is mounted on the first injection-molded part 100 for detecting suspension acceleration, and a second chip 310 is mounted on the third injection-molded part 300, particularly at its end, for detecting wheel speed.

[0021] refer to Figure 2 It shows according to Figure 1 An exploded view of the vehicle sensor. A first terminal 111 for outputting an acceleration signal is connected to a first chip 110, and a second terminal 311 for outputting a wheel speed signal is connected to a second chip 310. A connection socket 120 is provided on the first injection molded part 100, which has a bottom wall 121 and a peripheral wall 122 connected to the bottom wall. The ends of the first terminal 111 and the second terminal 311 extend from the bottom wall 121 into the connection socket 120 at the same length, forming a row of connection terminals with the same structure. By connecting the connector 120 and the first terminal 111 and the second terminal 311 to the connector 120, the first terminal 111 and the second terminal 311 and the connector 120 form a male connector with a row of identical connecting terminals. The female connector can be connected to the male connector through the mating female connector, so that the acceleration signal from the first chip 110 and the wheel speed signal from the second chip 310 can be obtained at the same time, without having to first connect the first terminal 111 and the second terminal 311 to the same PCB board before outputting the signal. This avoids electromagnetic interference that may occur when sharing a PCB board and also saves the construction cost of the sensor 10.

[0022] exist Figure 1 In one embodiment, there are two first terminals 111 and two second terminals 311, and their ends are formed with a row of four terminals arranged side by side. Correspondingly, the connection socket 120 is also constructed in an elongated shape.

[0023] In one embodiment of this application, a first chip receiving portion 130 is further provided on the first injection molded part 100. This portion is mounted outside the connector 120 and forms a receiving space, in which the first chip 110 and most of the first terminal 111 are received. The first terminal 111 extends, for example, from the bottom wall of the receiving space and then enters the connector 120 through the bottom wall 121 of the connector 120. A reinforcing structure 140, such as a reinforcing rib or plate, is provided between the outer wall of the first chip receiving portion 130 and the peripheral wall 122 of the connector 120 to enhance the overall strength of the first injection molded part 100.

[0024] In one embodiment of this application, the first injection molded part 100 further includes a protective cover 150, which closes the first chip receiving portion 130 to protect the first chip 110 from the influence of the external environment. The first injection molded part 100 also includes a first connecting tube 160 disposed on the bottom wall 121 of the connecting socket 120, which is used to connect to the second injection molded part 200.

[0025] In one embodiment of this application, the second injection molded part 200 includes a connecting portion 210, a flange 220, and a bushing 230. The second injection molded part 200 is connected to the first injection molded part 100 and the third injection molded part 300 via the connecting portion 210. The connecting portion 210 is configured to include an annular stop portion 211 and a second connecting pipe 212 axially connected to the annular stop portion 211. Figure 2 The image is obscured due to the viewing angle; it is only shown schematically. Figure 4 As can be seen from the image, the connecting portion 210 also has a hollow section for the second terminal 311 to pass through. The second connecting tube 212 is used to connect to the third injection molded part 300. The flange 220 is connected to the side of the annular stop portion 211, and a through hole 221 is provided on the flange 220, into which the bushing 230 is installed. The flange 220 can be installed at any position on the peripheral surface of the annular stop portion 211. The flange 220 and the bushing 230 mainly serve as a fixing structure for the sensor 10, and the vehicle sensor 10 can be fixed in the vehicle by means of the bushing 230. The first connecting tube 160 of the first injection molded part 100 is connected to the inner ring of the annular stop portion 211. In one embodiment of this application, a plurality of annular ribs 161 are provided on the outer side of the first connecting tube 160, which facilitates the fastening and sealing of the connection between the first connecting tube 160 and the annular stop portion 211.

[0026] In one embodiment of this application, the extension direction of the flange 220 forms an angle of 0° or 90° with the plane of the protective cover 150, which facilitates the fixing and installation of the sensor 10. By separately injection molding the second injection molded part 200 and the first injection molded part 100, the injection molding shape of the second injection molded part 200 can be selected after the first injection molded part 100 is completed to match the structure and installation position of the sensor 10, rather than completely determining the relative position of the flange 220 and the protective cover 150 from the beginning, so as to avoid incompatibility with some sensor models or vehicle models.

[0027] In one embodiment of this application, a protruding abutment 222 is provided on the flange 220, which abuts against the peripheral wall 122 of the connecting socket 120 in a shape-fitting manner for fixing and positioning the second injection molded part 200 relative to the first injection molded part 100.

[0028] In one embodiment of this application, the third injection molded part 300 is tubular, with one end connected to the second connecting tube 212 and the other end housing the second chip 310 (its mounting position is schematically shown in the figure) and configured to include a detection plane 320 for protecting the second chip 310. The second terminal 311 passes through the connecting portion 210 from the third injection molded part 300 and enters the bottom wall 121 of the connecting socket 120. For example, a plurality of annular ribs 213 are also provided on the outer wall of the second connecting tube 212 (see...). Figure 4 This facilitates the fastening and sealing of the connection between the second connecting pipe 212 and the third injection molded part 300. In one embodiment of this application, a terminal fixing member 330 extending in the axial direction is also provided in the third injection molded part 300, and the second terminal 311 is fixed in the terminal fixing member 330 to prevent it from shifting position.

[0029] In one embodiment of this application, the third injection molded part 300 has ribs 340 evenly arranged along the periphery and extending along the axial direction at one end near the second injection molded part 200. The ribs 340 are used for the installation and positioning of the third injection molded part 300.

[0030] refer to Figure 3 and Figure 4 The diagrams show a structural schematic and an exploded view of a vehicle sensor 10 according to another embodiment of this application. Figure 4 The image shows a multi-angle mounting scheme for the second injection molded part 200. Figure 3 and 4 In the embodiment, the structure of the first injection molded part 100 is the same as... Figure 1 and 2 The implementation method is different. An intermediate connector 170 is constructed between the bottom wall 121 of the connector 120 and the first connector 160. The first chip receiving part 130 is installed on the intermediate connector 170. Thus, the first chip receiving part 130 is located below the connector 120, which is more conducive to the arrangement of the first terminal 111.

[0031] exist Figure 3 and 4 In this embodiment, there are two first terminals 111 and two second terminals 311. However, the ends of the first terminals 111 and the second terminals 311 each form a row of two connecting terminals in the connecting socket 120. Therefore, there are two rows of connecting terminals in the connecting socket 120, with two connecting terminals in each row. The shape of the connecting socket 120 is specifically designed to be approximately rectangular and circular.

[0032] In summary, the automotive sensor of this application combines two sensor chips by consolidating the terminals of the two sensor chips into a single connector, eliminating the need for an additional circuit board to consolidate the signals from the two sensor chips, thus reducing manufacturing costs and preventing electromagnetic interference. Furthermore, the connector portion is injection molded separately from the sensor mounting structure, allowing for compatibility with different sensor structures and mounting configurations, thereby improving the sensor's adaptability.

[0033] It should be understood that all the above preferred embodiments are exemplary and not restrictive, and various modifications or variations made by those skilled in the art to the specific embodiments described above under the concept of this application should be within the scope of legal protection of this application.

Claims

1. A vehicle sensor, characterized in that, include: The first chip is used to detect the acceleration of the suspension; The second chip is used to detect wheel speed; The first terminal is connected to the first chip; The second terminal is connected to the second chip; A connector has a bottom wall and a peripheral wall connected to the bottom wall. The ends of a first terminal and a second terminal are inserted into the connector from the bottom wall at the same length, forming a row of connector terminals with the same structure.

2. The vehicle sensor according to claim 1, characterized in that, The vehicle sensor further includes a first injection molded part, a second injection molded part, and a third injection molded part, which are sequentially injection molded. The second injection molded part is mounted on the first injection molded part, and the third injection molded part is mounted on the second injection molded part. The first chip and the connection socket are disposed on the first injection molded part, and the second chip is mounted on the third injection molded part.

3. The vehicle sensor according to claim 2, characterized in that, The first injection molded part includes a connecting socket and a first chip receiving portion. The first chip receiving portion is installed on the outside of the connecting socket, the first chip is received in the first chip receiving portion, and the first terminal is inserted into the connecting socket from the bottom wall of the connecting socket.

4. The vehicle sensor according to claim 2, characterized in that, The second injection molded part includes a connecting part, a flange, and a bushing. The connecting part is configured to include an annular stop and a second connecting pipe axially connected to the annular stop. The second connecting pipe is connected to the third injection molded part. The flange is connected to the side of the annular stop and has a through hole. The bushing is installed into the through hole.

5. The vehicle sensor according to claim 4, characterized in that, The first injection molded part also includes a first connecting tube disposed on the bottom, and the first injection molded part is connected to the annular stop portion through the first connecting tube.

6. The vehicle sensor according to claim 4, characterized in that, The flange is provided with a protruding abutment, which abuts against the peripheral wall of the connection port in a shape-fitting manner.

7. The vehicle sensor according to claim 4, characterized in that, The third injection molded part is configured as a tube, with one end connected to the second connecting tube and the other end accommodating the second chip and configured to include a detection plane. The second terminal passes through the connecting part from the third injection molded part and enters the bottom wall of the connecting socket.

8. The vehicle sensor according to claim 5, characterized in that, The first injection molded part further includes a protective cover that closes the first chip receiving portion, and the extension direction of the flange forms an angle of 0° or 90° with the plane of the protective cover.

9. The vehicle sensor according to claim 7, characterized in that, The third injection molded part has ribs that are evenly arranged along the periphery and extend along the axial direction at one end near the second injection molded part.

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