Automotive sensors

Abstract

This application provides an automotive sensor, comprising: a first injection molded part in which a first chip and a first terminal are mounted, the first chip being used to detect the acceleration of the suspension, the first terminal being connected to the first chip, and a connection socket being constructed in the first injection molded part, the end of the first terminal extending into the connection socket; a second injection molded part in which a second chip and a second terminal are mounted, the second chip being used to detect wheel speed, and the second terminal being connected to the second chip; and an intermediate terminal, the intermediate terminal being connected to the end of the second terminal and extending into the connection socket, the end of the intermediate terminal and the end of the first terminal forming a row of connection terminals with the same structure in the connection socket; this automotive sensor adds an intermediate terminal to facilitate the common signal output of the first and second terminals, eliminating the need to lengthen the second terminal and the second injection molded part, thus reducing the manufacturing difficulty and cost of the sensor.

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] When combining PSS and WSS sensors, it is usually necessary to connect the terminals of both sensors to the same output terminal or connector. Since the terminals of the two sensors are arranged in different positions relative to the output terminal or connector, the terminals of the WSS sensor usually need to be lengthened in order to connect to the same output terminal or connector as the terminals of the PSS sensor. This also means that the injection molded part used to hold the terminal must also be lengthened.

[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 combine two sensor terminals without lengthening the WSS sensor terminals and the injection molded parts.

[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: A vehicle sensor, comprising: A first injection molded part has a first chip and a first terminal installed therein. The first chip is used to detect the acceleration of the suspension. The first terminal is connected to the first chip. A connection socket is constructed in the first injection molded part, and the end of the first terminal extends into the connection socket. The second injection molded part has a second chip and a second terminal installed therein. The second chip is used to detect wheel speed, and the second terminal is connected to the second chip. An intermediate terminal is connected to the end of the second terminal and extends into the connection socket, wherein the end of the intermediate terminal and the end of the first terminal form a row of connection terminals with the same structure in the connection socket.

[0008] Optionally, according to one embodiment of this application, the intermediate terminal includes an insertion part, a bending part, and a connecting part connected in sequence, the insertion part being inserted into the connecting socket, and the connecting part being connected to the end of the second terminal.

[0009] Optionally, according to one embodiment of this application, the number of the first terminal, the second terminal, and the intermediate terminal are the same and there are multiple of each. The ends of the first terminal and the ends of the intermediate terminals form multiple rows of the connecting terminals, and the bent portion is bent relative to the connecting portion in a direction away from the first terminal.

[0010] Optionally, according to one embodiment of this application, the connecting portion includes an extension connected to the bent portion and a fixing portion connected to the end of the second terminal, wherein the width of the fixing portion is greater than the width of the extension portion.

[0011] Optionally, according to one embodiment of this application, the fixing part is welded to the end of the second terminal.

[0012] Alternatively, according to one embodiment of this application, the fixing part is elastically constructed and bent to one side.

[0013] Optionally, according to one embodiment of this application, the fixing part includes a first bent part, a second bent part, and a third bent part connected in sequence, wherein the first bent part and the extension part, as well as the first bent part, the second bent part, and the third bent part form obtuse angles, and the second bent part abuts against the end of the second terminal.

[0014] Optionally, according to one embodiment of this application, the fixing part includes a torsion part and a clamping part connected to each other. The clamping part is configured as a clamp and is elastic. The torsion part is torsion relative to the extension about the extension direction as an axis, such that the width direction of the clamping part is perpendicular to the width direction of the extension.

[0015] Optionally, according to one embodiment of this application, the clamping section of the clamping part includes a jaw section, a first clamping section, a second clamping section and a gap section connected in sequence, wherein the gap between the jaw sections is greater than the gap between the first clamping sections, and the gap between the first clamping sections is greater than the gap between the second clamping sections.

[0016] Alternatively, according to one embodiment of this application, the gap between the jaw segments is configured to increase progressively toward the ends of the jaw segments.

[0017] The advantages of this application include at least the following: 1. The automotive sensor of this application is provided with an intermediate terminal for connecting the terminals of the WSS sensor and the PSS sensor together to the connection socket provided in the first injection molded part. There is no need to lengthen the terminals of the WSS sensor, nor is there a need to lengthen the second injection molded part, which makes the overall connection more flexible, applicable to various sensor product types, and also saves costs and reduces manufacturing difficulty. 2. The intermediate terminal of this application can be configured in various types and can be connected to the terminal of the WSS sensor in various forms such as welding, elastic bonding, and snap-fit. In addition, the intermediate terminal in one embodiment of this application is provided with a bending part, which can change the position of the end of the intermediate terminal in the horizontal direction, which is beneficial to the position arrangement of the end of the intermediate terminal and the end of the PSS sensor terminal in the connection socket, and also beneficial to the arrangement of the sensor fixing structure. Attached Figure Description

[0018] Referring to the accompanying drawings, the above and other features of this application will become apparent, wherein, Figure 1 An exploded view of an automotive sensor according to a first embodiment of this application is shown; Figure 2 Showing according to Figure 1 A schematic diagram of the structure of the intermediate terminal; Figure 3 An exploded view of an automotive sensor according to a second embodiment of this application is shown; Figure 4 Showing according to Figure 3 A side view of the connection between the middle terminal and the second terminal; Figure 5 An exploded view of an automotive sensor according to a third embodiment of this application is shown; Figure 6 Showing according to Figure 5 A side view of the connection between the clip portion of the middle terminal and the second terminal. Detailed Implementation

[0019] 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.

[0020] 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.

[0021] refer to Figure 1 This diagram shows an exploded view of a vehicle sensor 10 according to a first embodiment of this application. The vehicle sensor 10 includes a first injection molded part 100, a second injection molded part 200, and a fixing structure 300. The first injection molded part 100 is mounted on the second injection molded part 200, and the fixing structure 300 is mounted on the first injection molded part 100. A bushing 310 is installed in the fixing structure 300, through which the vehicle sensor 10 is integrally fixed in the vehicle.

[0022] A first chip 110 and a first terminal 120 are mounted in a first injection molded part 100. The first chip 110 is a PSS chip, used to detect suspension acceleration. The first terminal 120 is connected to the first chip 110, and a connection socket 130 is formed in the first injection molded part 100, into which the end of the first terminal 120 is inserted. A second chip 210 and a second terminal 220 are mounted in a second injection molded part 200. The second chip 210 is a WSS chip, used to detect wheel speed. The second terminal 220 is connected to the second chip 210, and its end extends out of the second injection molded part 200. An intermediate terminal 400 is connected to the end of the second terminal 220 and inserted into the connection socket 130. The ends of the intermediate terminal 400 and the ends of the first terminal 120 form a row of connection terminals with the same structure in the connection socket 130. Thus, the ends of the first terminal 120 and the intermediate terminal 400 form a male connector in the connection socket 130. A female connector can be inserted into this male connector to simultaneously acquire signals from the first chip 110 and the second chip 210. By providing the intermediate terminal 400, the need to lengthen the second terminal 220 and the second injection molded part 200 as a whole is avoided, especially for fixing the second terminal, reducing manufacturing difficulty and cost. Simultaneously, the intermediate terminal 400 can also be used to match WSS and PSS sensors of different structures and sizes, enabling the sensor structure to adapt to different types of products, especially directly adapting to existing WSS sensors without changing their structure, and making the installation method more flexible.

[0023] exist Figure 1 In this embodiment, there are two of each of the first terminal 120, the second terminal 220, and the intermediate terminal 400. The ends of the first terminal 120 and the intermediate terminal 400 form a 2*2 connection terminal in the connection socket 130, that is, two rows of two connection terminals each. It should be understood that the number of the first terminal 120, the second terminal 220, and the intermediate terminal 400 may also be one or more than two, and they may form one row of connection terminals or more than two rows of connection terminals. These cases should all be included within the scope of protection of this application.

[0024] refer to Figure 2 It shows according to Figure 1 A schematic diagram of the structure of the intermediate terminal 400 is shown. In this embodiment, the intermediate terminal 400 includes an insertion portion 410, a bending portion 420, and a connecting portion 430 connected in sequence. The insertion portion 410 extends vertically and is inserted into the connecting socket 130, and the connecting portion 430 is connected to the end of the second terminal 220. In one embodiment of this application, the bending direction of the bending portion 420 relative to the connecting portion 430 is away from the direction of the first terminal 120. By providing the bending portion 420, it is beneficial to arrange the end of the intermediate terminal 400 and the first terminal 120 in the connecting socket 130. It is also beneficial to the size design of the connecting socket 130, the first injection molded part 100, and the fixing structure 300, thereby reducing the overall design size of the sensor 10.

[0025] In one embodiment of this application, the connecting portion 430 includes an extension 431 connected to the bent portion 420 and a fixing portion 432 connected to the end of the second terminal 220. The extension 431 is configured to extend vertically, and the width of the fixing portion 432 is greater than the width of the extension 431. The fixing portion 432 is configured to be wider than the extension 431, which facilitates increasing the contact area between the fixing portion 432 and the end of the second terminal 220, ensuring an electrical connection between the intermediate terminal 400 and the second terminal 220. Figure 1 In one embodiment, the fixing part 432 is configured to extend in a vertical direction and is welded to the end of the second terminal 220.

[0026] refer to Figure 3 This shows an exploded view of an automotive sensor 10 according to a second embodiment of this application. Figure 3 In this embodiment, the fixing part 432 is elastically constructed and bent to one side. Thus, when the intermediate terminal 400 and the second terminal 220 are connected, the fixing part 432 can be snapped onto the end of the second terminal 220, causing the fixing part 432 to be compressed and elastically deformed, thereby elastically abutting against the second terminal 220, thereby ensuring the electrical connection between the intermediate terminal 400 and the second terminal 220.

[0027] refer to Figure 4 It shows according to Figure 3 A side view of the connection between the intermediate terminal 400 and the second terminal 220. Figure 4 In this embodiment, the fixing part 432 includes a first bent part 401, a second bent part 402, and a third bent part 403 connected in sequence. The first bent part 401 and the extension part 431, as well as the first bent part 401, the second bent part 402, and the third bent part 403, all form obtuse angles. When the intermediate terminal 400 is connected to the end of the second terminal 220, the second bent part 402 rests against the end of the second terminal 220 in the vertical direction. In this embodiment, the fixing part 432 includes three bends. When the intermediate terminal 400 is connected to the second terminal 220, the fixing part 432 is compressed, and the angle between the first bent part 401 and the extension part 431 increases due to the compression. Therefore, the second bent part 402, due to its elasticity, can rest well against the second terminal 220. The design of the third bent part 403 makes it easier for the intermediate terminal 400 to be snapped onto the second terminal 220. It should be understood that the fixing part 432 may also be designed as an arc or other bent or curved shape to generate elasticity and be electrically connected to the second terminal 220 by elastic contact, which should also be included within the scope of protection of this application.

[0028] refer to Figure 5 The diagram shows an exploded view of the vehicle sensor 10 according to the third embodiment of this application. Figure 5 In this embodiment, the intermediate terminal 400 is electrically connected to the second terminal 220 via a clip. In this case, the fixing portion 432 of the intermediate terminal 400 includes a torsion portion 404 and a clip portion 405 connected to each other. The clip portion 405 is configured in a clamp shape and is elastic. The torsion portion 404 is twisted relative to the extension portion 431 about a vertical axis, such that the width direction of the clip portion 405 is perpendicular to the width direction of the extension portion 431. Because the intermediate terminal 400 is generally a metal sheet, the torsion portion 404 causes the end portion of the fixing portion 432 to twist by 90°, which facilitates the installation of the clip portion 405 and enhances the strength of the clip portion 405.

[0029] refer to Figure 6 It shows according to Figure 5The image shows a side view of the connection between the clamping portion 405 of the intermediate terminal 400 and the second terminal 220. The clamping sections on both sides of the clamping portion 405 include a jaw section 1, a first clamping section 2, a second clamping section 3, and a gap section 4 connected sequentially. The gap between the jaw sections 1 is larger than the gap between the first clamping sections 2, and the gap between the first clamping sections 2 is larger than the gap between the second clamping sections 3. In one embodiment of this application, the gap between the jaw sections 1 is configured to increase progressively towards the end of the jaw sections 1, thus providing a larger gap at the opening of the jaw sections 1, which facilitates easy insertion of the end of the second terminal 220 into the clamping portion 405. The first clamping sections 2 and 3 are particularly used to accommodate second terminals 220 of different standards and sizes. The second terminal 220 generally has two types, for example, with widths of 8 mm and 6 mm, respectively. In one embodiment, the first clamping section 2 is particularly configured to be less than 8 mm and greater than 6 mm, and the second clamping section 3 is particularly configured to be less than 6 mm. Thus, when the second terminal 220 is a terminal type with a width of 8 mm, its end is inserted only into the first clamping section 2 and not into the second clamping section 3, and the second clamping section 2 can then apply a clamping force to the second terminal 220 through elastic interference. When the second terminal 220 is a terminal type with a width of 6 mm, its width is smaller than the gap of the first clamping part 2, so the end of the second terminal 220 can first easily pass through the first clamping part 2 and then be clamped between the second clamping sections 3 (e.g., Figure 6 As shown, because the gap in the second clamping section 3 is less than 6mm, it can apply an interference clamping force to the end of the second terminal 220. In this way, this type of clamping part 405 can meet the clamping requirements of two different types of commonly used terminals. The setting of the gap section 4 is beneficial in accommodating the narrow head of the second terminal 220, and also provides better elasticity for the entire clamping part 405, preventing damage or cracking of the clamping part 405.

[0030] In summary, the automotive sensor of this application is provided with an intermediate terminal to connect to the second terminal, so that the second terminal can be inserted into the common connection socket with the first terminal to achieve signal output, without the need to lengthen the second terminal and the second injection molded part, which reduces the manufacturing difficulty and cost of the sensor, and also makes the structure of the sensor more flexible and can be adapted to different types of terminals.

[0031] 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 sensor for a vehicle, characterized by comprising: include: A first injection molded part has a first chip and a first terminal installed therein. The first chip is used to detect the acceleration of the suspension. The first terminal is connected to the first chip. A connection socket is constructed in the first injection molded part, and the end of the first terminal extends into the connection socket. The second injection molded part has a second chip and a second terminal installed therein. The second chip is used to detect wheel speed, and the second terminal is connected to the second chip. An intermediate terminal is connected to the end of the second terminal and extends into the connection socket, wherein the end of the intermediate terminal and the end of the first terminal form a row of connection terminals with the same structure in the connection socket.

2. The vehicle sensor according to claim 1, characterized in that, The intermediate terminal includes an insertion part, a bending part, and a connecting part connected in sequence. The insertion part is inserted into the connecting socket, and the connecting part is connected to the end of the second terminal.

3. The vehicle sensor according to claim 2, characterized in that The number of the first terminal, the second terminal, and the intermediate terminal are the same and there are multiple of each. The ends of the first terminal and the ends of the intermediate terminals form multiple rows of the connecting terminals. The bent portion is bent relative to the connecting portion in a direction away from the first terminal.

4. The automotive sensor according to claim 2, characterized in that The connecting portion includes an extension connected to the bent portion and a fixing portion connected to the end of the second terminal, wherein the width of the fixing portion is greater than the width of the extension portion.

5. The vehicle sensor according to claim 4, characterized in that The fixing part is welded to the end of the second terminal.

6. The vehicle sensor according to claim 4, characterized in that, The fixing part is elastic and bent to one side.

7. The automotive sensor according to claim 6, characterized in that The fixing part includes a first bending part, a second bending part and a third bending part connected in sequence. The first bending part and the extension part, as well as the first bending part, the second bending part and the third bending part, all form obtuse angles. The second bending part is attached to the end of the second terminal.

8. The automotive sensor according to claim 4, characterized in that The fixing part includes a torsion part and a clamping part connected to each other. The clamping part is configured as a clamp and is elastic. The torsion part is torsion relative to the extension about the extension direction as an axis, such that the width direction of the clamping part is perpendicular to the width direction of the extension.

9. The vehicle sensor according to claim 8, characterized in that, The clamping section of the clamping part includes a jaw section, a first clamping section, a second clamping section and a gap section connected in sequence. The gap between the jaw sections is greater than the gap between the first clamping sections, and the gap between the first clamping sections is greater than the gap between the second clamping sections.

10. The automotive sensor according to claim 9, characterized in that The gap between the jaw segments is configured to increase progressively toward the ends of the jaw segments.

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