Position sensor for linear stroke detection

Abstract

The utility model provides a position sensor for linear stroke detection. The position sensor comprises a shell, one side of the shell is fixedly connected with a framework, the framework is fixedly provided with a PCB bonding pad, and the PCB bonding pad is fixedly connected with a plurality of wire harnesses; the other side of the shell is fixedly connected with a horn mouth, and the wire harness penetrates through the shell along the PCB bonding pad and goes out through the horn mouth. According to the position sensor, through optimizing wire harness installation and positioning and PCB bonding pad welding, the product durability is enhanced, the process efficiency is improved, the working hours are saved, the cost is reduced, and the comprehensive market advantages of the product are increased; secondly, by optimizing the assembling and positioning process between the framework and the shell, the structure and size control of the framework and the shell of the parts of the product are simplified, and process quality control and working hours are reduced; and finally, by optimizing the wire harness outgoing line positioning procedure, the number of molds is reduced, the cost is reduced, and cost reduction and efficiency improvement are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of sensors, in particular to a position sensor for linear stroke detection. Background Art

[0002] A position sensor is a sensor that can sense the position of an object being measured and convert it into a usable output signal. It can be used to detect position and reflect the state of a switch.

[0003] When detecting the position of a linear stroke, the position sensor of the prior art has many components, and the assembly and production processes are relatively complicated. The complex assembly process can easily lead to mistakes, affecting subsequent measurements and easily causing errors. For example, in the wiring harness installation and positioning and PCB welding process, the existing process is: the traditional wiring harness is welded through the PCB pad hole, the process is complicated and tedious, and the operation efficiency is low; in the interference fit assembly process between the skeleton and the shell, the existing process is: the traditional skeleton shell assembly requires the shell to open a positioning groove, and the corresponding protrusion needs to be designed on the skeleton, and then the raised part of the skeleton is assembled into the groove of the shell by crimping. This process requires increasing the complexity of the skeleton and shell molds, and requires more control over the size of the protrusion and the groove; for example, in the wiring harness outlet positioning process, the existing process is: the traditional wiring harness outlet requires an additional mold, and adding an assembly protective cover or secondary coating will increase the mold and cost. Utility Model Content

[0004] The utility model mainly aims at the technical problems raised in the above background technology and provides a position sensor for linear stroke detection.

[0005] The utility model solves the above technical problems through the following technical solutions:

[0006] The utility model provides a position sensor for linear stroke detection. The position sensor comprises: a housing, one side of the housing is fixedly connected to a frame, a PCB pad is fixedly mounted on the frame, and a plurality of wiring harnesses are fixedly connected to the PCB pad;

[0007] A bell mouth is fixedly connected to the other side of the shell, and the wiring harness passes through the shell along the PCB pad and exits through the bell mouth.

[0008] Preferably, a plurality of wire harness positioning grooves are provided on the PCB pad at equal distances and arranged side by side, and the wire harnesses are interference-fitted in a one-to-one correspondence with the wire harness positioning grooves.

[0009] Preferably, a wire outlet positioning groove is provided on the bell mouth for positioning the wire harness outlet through the bell mouth.

[0010] Preferably, an anti-slip step is further provided on the bell mouth, and the anti-slip step is arranged below the wire outlet positioning groove to limit the wire harness.

[0011] Preferably, the skeleton and the shell are connected via an interference fit cylindrical surface.

[0012] Preferably, a limit block is assembled on the interference cylindrical surface.

[0013] The positive progress of the present invention is that it provides a position sensor for linear stroke detection. The position sensor includes a housing, one side of which is fixedly connected to a frame, a PCB pad is fixedly mounted on the frame, and a plurality of wiring harnesses are fixedly connected to the PCB pad; the other side of the housing is fixedly connected to a bell mouth, and the wiring harness passes through the housing along the PCB pad and exits through the bell mouth. By optimizing the wiring harness installation and positioning and PCB pad welding, the position sensor enhances product durability, improves process efficiency, saves labor time, reduces costs, and increases the product's overall market advantage; then, by optimizing the assembly and positioning process between the frame and the housing, the structure and dimensional control of the product parts frame and housing are simplified, and process quality control and labor time are reduced; finally, by optimizing the wiring harness outlet positioning process, molds are reduced, costs are reduced, and cost reduction and efficiency improvement are achieved. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 This is a schematic structural diagram of a position sensor for linear stroke detection according to an embodiment of the present utility model.

[0015] Figure 2 This is a schematic diagram of the wiring harness installation positioning and PCB pad welding according to an embodiment of the present utility model.

[0016] Figure 3 This is a schematic diagram of the wiring harness outlet positioning according to an embodiment of the present utility model.

[0017] Figure 4 This is a schematic diagram of the interference fit of the frame and shell of an embodiment of the utility model.

[0018] Legend: 1. Shell; 2. Frame; 3. PCB pad; 4. Wire harness; 5. Bell mouth; 6. Wire harness positioning groove; 7. Outlet positioning groove; 8. Anti-slip step; 9. Interference cylindrical surface; 10. Limit block. DETAILED DESCRIPTION

[0019] The present invention is further described below by way of examples, but the present invention is not limited to the scope of the examples.

[0020] Example 1

[0021] like Figure 1 As shown, this embodiment provides a position sensor for linear stroke detection. The position sensor comprises: a housing 1, a frame 2, PCB pads 3, a wiring harness 4, and a bell mouth 5. The frame 2 is fixedly connected to one side of the housing 1, to which the PCB pads 3 are fixedly mounted, and to which several wiring harnesses 4 are fixedly connected; the bell mouth 5 is fixedly connected to the other side of the housing 1, and the wiring harnesses 4 pass through the housing 1 along the PCB pads 3 and exit through the bell mouth 5.

[0022] like Figure 2 As shown, the PCB pad 3 is provided with several equally spaced, parallel wire harness positioning slots 6. The wire harnesses 4 correspond to these slots 6 with an interference fit, ensuring each wire harness 4 is securely positioned. In this embodiment, the area of ​​the PCB pad 3 is significantly larger than the projected area of ​​the copper wires of the wire harness 4, ensuring weld strength and reducing the complex soldering process required by traditional wire harnesses that pass through holes in the PCB pad.

[0023] like Figure 3 As shown, the bell mouth 5 is provided with a wire outlet positioning groove 7 for positioning the wire harness 4 exiting through the bell mouth 5; the bell mouth 5 is also provided with an anti-slip step 8, which is arranged below the wire outlet positioning groove 7 to restrict the wire harness 4. In this embodiment, the wire harness 4 exits through the bell mouth 5 along the PCB pad and the frame 2. The elastic characteristics of the bell mouth 5 allow the wire outlet end of the wire harness 4 to be pressed into the wire outlet positioning groove 7. Due to the rebound effect, it is restricted by the anti-slip step 8 below the wire outlet positioning groove 7, so that the wire outlet end of the wire harness 4 is pressed between the wire outlet positioning groove 7 and the anti-slip step 8, ensuring the accurate positioning of the wire outlet of the wire harness 4, reducing the additional materials required for the traditional wire harness outlet, reducing working hours, improving production efficiency, and achieving cost reduction and efficiency improvement.

[0024] like Figure 4 As shown, the skeleton 2 and the shell 1 are connected by an interference fit cylindrical surface 9, on which a limit block 10 is mounted. The skeleton 2 and the shell 1 achieve an interference fit on the interference fit cylindrical surface 9, and the outer diameter of the skeleton 2 at the assembly location and the inner diameter of the shell 1 at the assembly location are controlled to meet the requirements. This ensures a smooth assembly process, avoids continuous interference fit before the assembly is in place, and ensures that the position of the skeleton 2 remains fixed during the subsequent epoxy potting and curing process. The limit block 10 is used to ensure the positional consistency of the assembly result in the circumferential direction.

[0025] This embodiment provides a position sensor for linear travel detection. By optimizing wiring harness installation and PCB pad soldering, this position sensor enhances product durability, improves process efficiency, saves labor, reduces costs, and increases the product's overall market advantage. Furthermore, by optimizing the assembly and positioning process between the frame and housing, the structure and dimensional control of the product's components are simplified, reducing process quality control and labor. Finally, by optimizing the wiring harness outlet positioning process, mold reduction and cost reduction are achieved, achieving cost reduction and efficiency improvement.

[0026] Although specific embodiments of the present invention have been described above, those skilled in the art will appreciate that these are merely illustrative and that the scope of protection of the present invention is defined by the appended claims. Those skilled in the art may make various changes or modifications to these embodiments without departing from the principles and essence of the present invention, and such changes and modifications are intended to fall within the scope of protection of the present invention.

Claims

1. A position sensor for linear stroke detection, characterized in that: The position sensor comprises: a housing, one side of the housing is fixedly connected to a frame, a PCB pad is fixedly mounted on the frame, and a plurality of wiring harnesses are fixedly connected to the PCB pad; A bell mouth is fixedly connected to the other side of the shell, and the wiring harness passes through the shell along the PCB pad and exits through the bell mouth.

2. The position sensor for linear stroke detection according to claim 1, characterized in that: A plurality of wire harness positioning grooves are arranged side by side at equal distances on the PCB pad, and the wire harnesses are interference-fitted with the wire harness positioning grooves in a one-to-one correspondence.

3. The position sensor for linear stroke detection according to claim 1, characterized in that: The bell mouth is provided with a wire outlet positioning groove for positioning the wire harness outlet through the bell mouth.

4. The position sensor for linear stroke detection according to claim 3, characterized in that: The bell mouth is also provided with an anti-slip step, which is arranged below the outlet positioning groove and is used to limit the wire harness.

5. The position sensor for linear stroke detection according to claim 1, characterized in that: The frame and the shell are connected via an interference fit cylindrical surface.

6. The position sensor for linear stroke detection according to claim 5, characterized in that: A limiting block is assembled on the interference cylindrical surface.

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