An end cap sensor

Abstract

This utility model discloses an end cap sensor, which includes a chip wafer, the chip wafer including a connecting portion and a fixing portion, the connecting portion extending along a first direction; a connecting terminal, the connecting terminal extending along the first direction and fixedly connected to the connecting portion; a washer, the washer having an annular structure; a first molded body disposed at the fixing portion, the connecting portion, and the connecting terminal; a second molded body disposed at the washer; wherein, the first molded body passes through the second molded body; the first molded body includes a first cavity, one end of the connecting terminal extends into the first cavity, the first molded body surrounds the other end of the connecting terminal, the fixing portion, and the connecting portion; the top of the washer is embedded in the second molded body, the second molded body covers the top of the washer and its circumferential inner surface, the second molded body includes a second cavity, the portion of the first molded body surrounding the fixing portion is located within the second cavity. This utility model can effectively simplify the assembly structure of the end cap sensor, reduce costs, and enhance sealing performance.

Description

Technical Field

[0001] This utility model relates to the field of automotive parts, and in particular to an end cap sensor. Background Technology

[0002] End cap sensors are widely used in the automotive parts industry. The end cap not only plays a crucial role in sealing and supporting the components, but its internal space also provides an ideal location for installing condition monitoring sensors. In practical applications, there are solutions that integrate various sensors onto the end cap, such as wheel speed sensors, temperature sensors, and vibration sensors.

[0003] Typically, the design of this type of end cap sensor involves fixing the chip and connection terminals to the sensor housing using a mounting bracket, and then assembling the sensor housing and end cap using mechanical pressing or other methods. This method tends to result in complex assembly structures and high manufacturing costs. In addition, the assembly method using mechanical pressing with a sealing ring also suffers from insufficient sealing performance. Utility Model Content

[0004] The purpose of this invention is to solve the problems of complex assembly structure, high manufacturing cost, and insufficient sealing performance of end cap sensors. This invention provides an end cap sensor that effectively simplifies the assembly process, reduces costs, and enhances sealing performance.

[0005] To solve the above-mentioned technical problems, this utility model discloses an end cap sensor, which includes a chip wafer, the chip wafer including a connecting portion and a fixing portion, the connecting portion extending along a first direction; a connecting terminal, the connecting terminal extending along the first direction, the connecting terminal being fixedly connected to the connecting portion; a washer, the washer having an annular structure; a first molded body disposed at the fixing portion, the connecting portion, and the connecting terminal; a second molded body disposed at the washer; wherein, the first molded body passes through the second molded body; the first molded body includes a first cavity, one end of the connecting terminal extending into the first cavity, the first molded body wrapping the other end of the connecting terminal, the fixing portion, and the connecting portion; the top of the washer is embedded in the second molded body, the second molded body covering the top of the washer and its circumferential inner surface, the second molded body including a second cavity, the portion of the first molded body wrapping the fixing portion being located within the second cavity.

[0006] By adopting the above technical solution, compared with fixing the chip wafer and the connection terminal with fasteners, directly fixing the connection part of the chip wafer and the connection terminal can eliminate the need for fasteners, saving material costs and effectively simplifying the assembly steps. At the same time, the first molded body covers the other end of the connection terminal, the fastener and the connection part, which can directly fix the chip wafer and the connection terminal in the first molded body. Furthermore, the second molded body directly covers the annular gasket, which effectively improves the sealing performance. The first molded body and the second molded body directly fix the chip wafer, the connection terminal and the gasket without the need for additional parts for fixation, which effectively simplifies the assembly steps.

[0007] According to another specific embodiment of the present invention, the connecting part includes a first connecting member and a second connecting member; the connecting terminal includes two, and the two connecting terminals are respectively provided with a first protrusion.

[0008] According to another specific embodiment of the present invention, the two first protrusions are fixed to the first connector and the second connector by welding.

[0009] Compared to fixing the chip wafer and the connection terminal with fasteners, the above technical solution can effectively reduce the types of parts and reduce production costs by directly fixing the first protrusion of the two connection terminals, the first connector and the second connector with welding. At the same time, the chip wafer and the connection terminal are pre-fixed into a single part by welding, which facilitates the subsequent one-piece molding process and eliminates the need for additional parts to fix the chip wafer and the connection terminal.

[0010] According to another specific embodiment of the present invention, the first molded body is provided with a through hole; the fixing part is provided with a groove, the groove being opposite to the through hole, and during the integral molding process, the groove is used to cooperate with an external fixing member to fix the fixing part.

[0011] Using the above technical solution, during the integral molding process, the external fastener cooperates with the groove and the other wall of the fixing part to achieve stable clamping of the fixing part, ensuring that the fixing part is accurately positioned and does not shift during the molding process. After the molding is completed, the external fastener moves away from the fixing part and exits. Therefore, the first molded body has a first through hole after molding.

[0012] According to another specific embodiment of the present invention, the first molded body is disposed perpendicularly through the second molded body.

[0013] By adopting the above technical solution, compared with assembling the sensor housing and end cap by mechanical pressing, directly molding the first molded body and the second molded body into one piece can effectively reduce assembly steps and simplify the assembly process. At the same time, this structure eliminates the need for a separate sealing ring and achieves sealing directly through one-piece molding, effectively improving the sealing performance of the end cap sensor.

[0014] According to another specific embodiment of the present invention, the washer includes a main body and a second protrusion. The main body has an annular structure and extends along the first direction. The second protrusion is disposed on the top of the main body. The second protrusion is embedded in the second molded body.

[0015] By adopting the above technical solution, the second protrusion is embedded into the second molded body, thereby directly fixing the washer to the second molded body, effectively reducing assembly steps and simplifying the assembly process.

[0016] According to another specific embodiment of the present invention, the main body and the second protrusion are made of metal material.

[0017] According to another specific embodiment of the present invention, the first molded body, the other end of the connecting terminal, the fixing part, and the connecting part are integrally injection molded.

[0018] Using the above technical solution, the first molded body, the other end of the connecting terminal, the fixing part, and the connecting part are directly injection molded as a single unit, eliminating the need for a separate installation process, effectively reducing assembly steps, and simplifying the assembly process.

[0019] According to another specific embodiment of the present invention, the second molded body is integrally injection molded with the top of the gasket and its circumferential inner surface.

[0020] By adopting the above technical solution, the second molded body is integrally injection molded with the top and circumferential inner surface of the gasket, eliminating the need for a separate installation process, effectively reducing assembly steps and simplifying the assembly process.

[0021] According to another specific embodiment of the present invention, the first molded body and the second molded body are integrally injection molded.

[0022] Using the above technical solution, the first molded body and the second molded body are directly injection molded as a single unit, eliminating the need for a sealing ring. While achieving good sealing performance, this eliminates the need for a separate installation process, effectively reducing assembly steps and simplifying the assembly process. Attached Figure Description

[0023] Figure 1 A three-dimensional schematic diagram of the end cap sensor provided in an embodiment of this application is shown. Figure 1 .

[0024] Figure 2 A cross-sectional view of the end cap sensor provided in an embodiment of this application is shown.

[0025] Figure 3 A three-dimensional schematic diagram of the end cap sensor provided in an embodiment of this application is shown. Figure 2 .

[0026] Figure 4 A three-dimensional schematic diagram of the end cap sensor provided in an embodiment of this application is shown. Figure 3 The chip wafer and connection terminals are not shown.

[0027] Figure 5 A perspective view of the chip wafer and connection terminals of the end cap sensor provided in an embodiment of this application is shown.

[0028] Figure 6 A three-dimensional schematic diagram of the gasket for the end cap sensor provided in an embodiment of this application is shown. Detailed Implementation

[0029] The following specific embodiments illustrate the implementation of this utility model. Those skilled in the art can easily understand other advantages and effects of this utility model from the content disclosed in this specification. Although the description of this utility model will be presented in conjunction with preferred embodiments, this does not mean that the features of this utility model are limited to this embodiment. On the contrary, the purpose of describing the utility model in conjunction with the embodiments is to cover other options or modifications that may be derived based on the claims of this utility model. To provide a deep understanding of this utility model, many specific details will be included in the following description. This utility model may also be implemented without using these details. Furthermore, to avoid confusion or obscuring the focus of this utility model, some specific details will be omitted in the description. It should be noted that, without conflict, the embodiments and features in the embodiments of this utility model can be combined with each other.

[0030] It should be noted that in this specification, similar reference numerals and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0031] In the description of this embodiment, it should be noted that the terms "upper", "lower", "inner", "bottom", etc., indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, or the orientation or positional relationship that the utility model product is usually placed in during use. They are only for the convenience of describing the utility model and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the utility model.

[0032] The terms “first”, “second”, etc., are used only to distinguish descriptions and should not be interpreted as indicating or implying relative importance.

[0033] In the description of this embodiment, it should also be noted that, unless otherwise explicitly specified and limited, the terms "set up," "connected," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this embodiment based on the specific circumstances.

[0034] To make the objectives, technical solutions, and advantages of this utility model clearer, the embodiments of this utility model will be described in further detail below with reference to the accompanying drawings.

[0035] End cap sensors are widely used in the automotive parts industry. The end cap not only plays a crucial role in sealing and supporting the components, but its internal space also provides an ideal location for installing condition monitoring sensors. In practical applications, there are solutions that integrate various sensors onto the end cap, such as wheel speed sensors, temperature sensors, and vibration sensors.

[0036] In some existing embodiments, the design of this type of end cap sensor typically involves fixing the chip and connection terminals to the sensor housing using a mounting bracket, and then assembling the sensor housing and end cap by means of mechanical pressing. This method tends to result in complex assembly structures and high process costs. In addition, the assembly method using mechanical pressing with a sealing ring also suffers from insufficient sealing performance.

[0037] Therefore, this application provides an end cap sensor that directly fixes the chip wafer and the connection terminal. The pre-formed chip wafer, connection terminal and gasket are placed in the mold, so that the sensor housing and end cap are integrally formed, thereby eliminating the need for a sealing ring. This saves material costs and effectively simplifies the assembly steps. Furthermore, the integral forming process effectively improves the sealing performance.

[0038] Specifically, refer to Figure 1 and Figure 2 The end cap sensor 100 of this application embodiment includes a first molded body 200, a second molded body 300, a chip wafer 400, a connection terminal 500, and a gasket 600. The first molded body 200 is disposed at the chip wafer 400 and the connection terminal 500, the second molded body 300 is disposed at the gasket 600, the first molded body 200 passes through the second molded body 300, and the first molded body 200 and the second molded body 300 are integrally injection molded.

[0039] It is understood that the end cap sensor 100 mentioned above can also be a wheel speed sensor or other types of sensors, such as position sensors, temperature sensors, etc., and this application does not limit it.

[0040] For example, the first molded body 200 is disposed perpendicularly through the second molded body 300. However, those skilled in the art will understand that in other embodiments, the first molded body 200 and the second molded body 300 may also be disposed non-perpendicularly, and this application does not limit this.

[0041] Further, refer to Figure 2 and Figure 3 The first molded body 200 includes a first cavity 210, and one end of the connecting terminal 500 extends into the first cavity 210.

[0042] It should be noted that the first molded body 200 includes a first cavity 210, which provides operating space for the connection terminal 500 to mate with the external connector.

[0043] refer to Figure 2 and Figure 4 The first molded body 200 is provided with a through hole 220; the fixing part 420 is provided with a groove 421, which is opposite to the through hole 220. During the integral molding process, the groove 421 is used to cooperate with an external fastener to fix the fixing part 420.

[0044] Specifically, during the integral molding process, the external fastener cooperates with the groove 421 of the fixing part 420 and the other wall surface of the fixing part 420 to achieve stable clamping of the fixing part 420, ensuring that the fixing part 420 is accurately positioned and does not shift during the molding process. After the molding is completed, the external fastener moves away from the fixing part 420 along the slide groove 310 and exits. Therefore, the first molded body 200 has a first through hole 220 after molding.

[0045] Further, refer to Figure 5 The chip wafer 400 includes a connecting portion 410 and a fixing portion 420. The connecting portion 410 extends along a first direction Z, and the connecting terminal 500 also extends along the first direction Z. The connecting terminal 500 is fixedly connected to the connecting portion 410. The connecting portion 410 includes a first connector 411 and a second connector 412. The connecting terminal 500 includes two terminals, each of which is provided with a first protrusion 510. The two first protrusions 510 are fixedly connected to the first connector 411 and the second connector 412, respectively.

[0046] It should be noted that, compared to fixing the chip wafer 400 and the connection terminal 500 with fasteners, directly fixing the connection portion 410 of the chip wafer 400 to the connection terminal 500, that is, in this embodiment, directly fixing the first protrusion 510 of the two connection terminals 500 to the first connection member 411 and the second connection member 412 respectively, can eliminate the need for fasteners, thereby saving material costs and effectively simplifying the assembly steps.

[0047] In this embodiment, two connection terminals 500 are included. However, those skilled in the art will understand that in other embodiments, any number of connection terminals 500 may be provided, such as 1, 3, 4, etc., and this application does not impose any limitation on this.

[0048] For example, the two first protrusions 510 are fixed to the first connector 411 and the second connector 412 respectively by welding. However, those skilled in the art will understand that in other embodiments, the two first protrusions 510 can be fixed to the first connector 411 and the second connector 412 respectively by other means, such as wire bonding, conductive adhesive bonding, etc., and this application does not limit this.

[0049] refer to Figure 6 The washer 600 has an annular structure, including a main body 610 and a second protrusion 620. The main body 610 has an annular structure and extends along the first direction Z. The second protrusion 620 is disposed on the top of the main body 610.

[0050] It is understandable that the above-mentioned top refers to the portion of washer 600 located slightly above the Z direction in the first direction.

[0051] For example, the main body 610 and the second protrusion 620 are made of galvanized cold-rolled steel sheet, that is, the washer 600 is made of galvanized cold-rolled steel sheet. However, those skilled in the art will understand that in other embodiments, the washer 600 can be made of other metal materials, such as copper, aluminum, etc., and this application does not limit this.

[0052] In some possible embodiments, the gasket 600 may be made of plastic.

[0053] Back Figure 2 A first molded body 200 is disposed at the fixing part 420, the connecting part 410, and the connecting terminal 500; the first molded body 200 covers the other end of the connecting terminal 500, the fixing part 420, and the connecting part 410; a second molded body 300 is disposed at the washer 600; the top of the washer 600 is embedded in the second molded body 300; the second molded body 300 covers the top of the washer 600 and its circumferential inner surface; the second molded body 300 includes a second cavity 320; the portion of the first molded body 200 that covers the fixing part 420 is located within the second cavity 320.

[0054] Specifically, the fixing part 420, the connecting part 410 (i.e., the chip wafer 400), the connecting terminal 500, and the gasket 600 are pre-made components. By fixing the chip wafer 400, the connecting terminal 500, and the gasket 600 in the corresponding positions of the mold, and through an integral molding process, these components are directly wrapped and fixed to the first molded body 200 and the second molded body 300, effectively eliminating additional installation steps and achieving reliable sealing of the overall structure.

[0055] Exemplarily, the first molded body 200 is integrally injection molded with the other end of the connecting terminal 500, the fixing part 420, and the connecting part 410, and the second molded body 300 is integrally injection molded with the top of the gasket 600 and its circumferential inner surface. However, those skilled in the art will understand that in other embodiments, the first molded body 200 and the second molded body 300 can be integrally molded by other processes, such as 3D printing, powder metallurgy, etc., and this application does not limit this.

[0056] Specifically, the second protrusion 620 of the washer 600 is embedded within the second molded body 300, thereby fixing the washer 600 within the second molded body 300. Exemplarily, the second protrusion 620 is an annular protrusion. However, those skilled in the art will understand that in other embodiments, the second protrusion 620 may also be of other shapes, such as spaced-apart bosses, and this application does not impose any limitations on this.

[0057] Although the present invention has been illustrated and described with reference to certain preferred embodiments, those skilled in the art should understand that the above description is a further detailed explanation of the present invention in conjunction with specific embodiments, and should not be construed as limiting the specific implementation of the present invention to these descriptions. Those skilled in the art can make various changes in form and detail, including some simple deductions or substitutions, without departing from the spirit and scope of the present invention.

Claims

1. An end cap sensor, characterized in that, include: A chip wafer, the chip wafer including a connecting portion and a fixing portion, the connecting portion extending along a first direction; A connecting terminal, which extends along the first direction and is fixedly connected to the connecting portion; Washer, wherein the washer has a ring structure; A first molded body is disposed at the fixing part, the connecting part, and the connecting terminal; A second molded body is disposed at the washer; in, The first molded body passes through the second molded body; The first molded body includes a first cavity, one end of the connecting terminal extends into the first cavity, and the first molded body encloses the other end of the connecting terminal, the fixing part, and the connecting part; The top of the washer is embedded in the second molded body, which covers the top of the washer and its circumferential inner surface. The second molded body includes a second cavity, and the portion of the first molded body that encloses the fixing part is located within the second cavity.

2. The end cap sensor as described in claim 1, characterized in that, The connecting part includes a first connector and a second connector; The connection terminal includes two terminals, and each of the two connection terminals is provided with a first protrusion.

3. The end cap sensor as described in claim 2, characterized in that, The two first protrusions are respectively fixed to the first connector and the second connector by welding.

4. The end cap sensor as described in claim 1, characterized in that, The first molded body is provided with a through hole; The fixing part is provided with a groove, which is opposite to the through hole. During the integral molding process, the groove is used to cooperate with an external fastener to fix the fixing part.

5. The end cap sensor as described in claim 1, characterized in that, The first molded body is positioned perpendicularly through the second molded body.

6. The end cap sensor as described in claim 1, characterized in that, The washer includes a main body and a second protrusion. The main body has an annular structure and extends along the first direction. The second protrusion is disposed on the top of the main body. The second protrusion is embedded in the second molded body.

7. The end cap sensor as described in claim 6, characterized in that, The main body and the second protrusion are made of metal.

8. The end cap sensor as described in claim 1, characterized in that, The first molded body is integrally injection molded with the other end of the connecting terminal, the fixing part, and the connecting part.

9. The end cap sensor as described in claim 8, characterized in that, The second molded body is integrally injection molded with the top of the gasket and its circumferential inner surface.

10. The end cap sensor as described in claim 9, characterized in that, The first molded body and the second molded body are integrally injection molded.

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