Automotive oil pressure sensor withstand voltage insulation test device

Abstract

This utility model relates to a withstand voltage insulation testing device for an automotive oil pressure sensor. The device involves placing the automotive oil pressure sensor in a testing fixture; positioning the testing fixture above a lifting device; and placing a lead wire device below the testing fixture. An AC withstand voltage insulation test circuit is connected to the lead wire device. During the descent of the testing fixture by the lifting device, the lead wire device contacts the output terminal of the automotive oil pressure sensor. The withstand voltage insulation test circuit performs a withstand voltage insulation test on the automotive oil pressure sensor. This device solves the technical problem of personnel danger caused by manual testing in existing testing processes. It is an automotive oil pressure sensor withstand voltage insulation testing device that can isolate personnel from the high voltage during the withstand voltage insulation test process.

Description

Technical Field

[0001] The embodiments of this utility model relate to a voltage withstand insulation testing device in the automotive industry, and particularly to a voltage withstand insulation testing device for an automotive oil pressure sensor. Background Technology

[0002] Oil pressure sensors operate in the high-temperature, oil-contaminated, and vibrating environment of the engine compartment, and their internal circuitry must withstand high-voltage surges (such as interference from the ignition system and electrostatic discharge). Withstand voltage testing verifies the sensor's insulation performance under extreme voltages, preventing short circuits, leakage, or false alarms caused by insulation failure, which could lead to malfunctions or safety accidents. Therefore, in actual production, 100% withstand voltage insulation testing of oil pressure sensors is required. However, current testing methods rely on manual inspection. This requires high-voltage testing, posing a safety hazard to personnel. A device is needed to isolate personnel from the high voltage during the withstand voltage insulation testing process. Utility Model Content

[0003] The purpose of this invention is to provide an automotive oil pressure sensor withstand voltage insulation testing device that can isolate personnel from high voltage during withstand voltage insulation testing.

[0004] To achieve the above objectives, this utility model provides a voltage withstand insulation testing device for an automotive oil pressure sensor, comprising:

[0005] Automotive oil pressure sensor;

[0006] The test fixture is used to place the automotive oil pressure sensor.

[0007] A lifting device is used to position the test fixture above the lifting device.

[0008] A lead wire device is provided below the test fixture;

[0009] An AC withstand voltage insulation tester, wherein the withstand voltage insulation test circuit of the AC withstand voltage insulation tester is connected to the lead wire device;

[0010] During the process of the lifting device driving the test fixture to descend, the lead wire device contacts the output terminal of the automotive oil pressure sensor; the withstand voltage insulation test circuit performs a withstand voltage insulation test on the automotive oil pressure sensor.

[0011] Furthermore, in the automotive oil pressure sensor withstand voltage insulation test device of this utility model, the automotive oil pressure sensor is placed in the mounting hole of the test fixture.

[0012] Furthermore, in the automotive oil pressure sensor withstand voltage insulation testing device of this utility model, the testing fixture further includes:

[0013] The upper tooling is fixed on the lifting plate on one side of the middle of the lifting device;

[0014] A recessed hole is formed in the middle of the upper tooling; the upper part of the automotive oil pressure sensor is aligned and embedded in the recessed hole.

[0015] The lower tooling is fixed on the lower fixing plate on one side of the middle of the lifting device; the lower tooling and the upper tooling are fitted together by guide posts; the lead wire device is set at the center of the lower tooling, below the automotive oil pressure sensor.

[0016] A positioning hole is provided at the middle position of the lower tooling; the lower half of the automotive oil pressure sensor is placed in the positioning hole; the positioning hole is a single-sided square hole to position the automotive oil pressure sensor in a unique direction.

[0017] Furthermore, in the automotive oil pressure sensor withstand voltage insulation testing device of this utility model, the lifting device further includes:

[0018] A lifting cylinder is fixed above the upper fixed plate of the lifting device; the piston rod of the lifting cylinder is connected to the lifting plate; the lifting cylinder drives the upper tooling to move up and down.

[0019] Guide columns, one end of several guide columns is fixed on the upper fixed plate, and the lifting plate is movably connected to the guide columns; the other side of the guide columns is fixed on the lower fixed plate; a lower tooling is fixed above the lower fixed plate;

[0020] A housing is fixed below the lower fixing plate;

[0021] A protective frame is fixed above the lower fixing plate;

[0022] A movable door is movably connected to the front of the protective frame;

[0023] A protective cylinder is provided, with its piston rod connected above the movable door; the cylinder body of the protective cylinder is fixed above the upper fixed plate; the protective cylinder drives the movable door and the upper tooling to move up and down together.

[0024] Furthermore, in the automotive oil pressure sensor withstand voltage insulation testing device of this utility model, the lead wire device further includes:

[0025] A lead wire is fixed on the lower fixture of the test fixture; an insulating sleeve is provided between the lead wire and the lower fixture.

[0026] A spring, with several springs placed on the outside of the lead wire;

[0027] Small guide post, the small guide post is placed inside the spring; one end of the small guide post is fixed to the base plate;

[0028] A movable plate is movably connected to several small guide posts; the automotive oil pressure sensor is placed above the movable plate; the output terminal of the automotive oil pressure sensor is inserted into the lead wire during the downward pressing of the lifting device.

[0029] Furthermore, in the automotive oil pressure sensor withstand voltage insulation test device of this utility model, the withstand voltage insulation test circuit port and the high voltage port of the AC withstand voltage insulation tester are respectively connected to the lead wire.

[0030] Furthermore, in the automotive oil pressure sensor withstand voltage insulation testing device of this utility model, a start button and a stop button are provided on one side of the housing.

[0031] Furthermore, in the automotive oil pressure sensor withstand voltage insulation test device described in this utility model, a compressed air switch and a solenoid valve are provided on the other side of the housing.

[0032] Compared with the prior art, the present invention places the automotive oil pressure sensor in a testing fixture; the testing fixture is positioned above the lifting device, and a lead wire device is positioned below the testing fixture; a withstand voltage insulation test circuit of an AC withstand voltage insulation tester is connected to the lead wire device; during the descent of the testing fixture by the lifting device, the lead wire device contacts the output terminal of the automotive oil pressure sensor; the withstand voltage insulation test circuit performs a withstand voltage insulation test on the automotive oil pressure sensor; this invention solves the technical problem that in the existing testing process, manual testing is used, but the withstand voltage insulation test of the oil pressure sensor requires high voltage, which leads to personnel hazards; the present invention provides an automotive oil pressure sensor withstand voltage insulation test device that isolates personnel from the high voltage during the withstand voltage insulation test process. Attached Figure Description

[0033] Figure 1 This is a three-dimensional structural diagram of the present invention;

[0034] Figure 2 for Figure 1 Front view diagram;

[0035] Figure 3 for Figure 1 A top-down view;

[0036] Figure 4 for Figure 1 A left-view diagram;

[0037] Figure 5 This is an enlarged view of point A;

[0038] Figure 6 This is a magnified schematic diagram of the car oil pressure sensor at point A. Detailed Implementation

[0039] To make the objectives, technical solutions, and advantages of this utility model clearer, the various embodiments of this utility model will be described in detail below with reference to the accompanying drawings. However, those skilled in the art will understand that many technical details have been provided in the various embodiments of this utility model to facilitate a better understanding of this application. However, the technical solutions claimed in the claims of this application can be implemented even without these technical details and with various variations and modifications based on the following embodiments.

[0040] The embodiments of this utility model relate to a voltage withstand insulation testing device for an automotive oil pressure sensor, such as... Figures 1-6 As shown, it includes:

[0041] In this embodiment, the automotive oil pressure sensor 1 is placed in the automotive oil pressure sensor withstand voltage insulation test device of this embodiment;

[0042] The automotive oil pressure sensor 1 is placed in the test fixture 10; the test fixture 10 is mainly used to position the automotive oil pressure sensor 1.

[0043] The test fixture 10 is placed above the lifting device 20, and the lifting device 20 drives part of the test fixture 10 to move up and down.

[0044] A lead wire device 30 is provided below the test fixture 10; the lead wire device 30 is used to connect the AC withstand voltage insulation tester 2; so that the AC withstand voltage insulation tester 2 is connected to the automotive oil pressure sensor 1 through the lead wire device 30.

[0045] The withstand voltage insulation test circuit of the AC withstand voltage insulation tester 2 is connected to the lead wire device 30; the withstand voltage insulation test circuit performs AC withstand voltage insulation test on the automotive oil pressure sensor 1.

[0046] During the process of the lifting device 20 driving the test fixture 10 to descend, the lead wire device 30 contacts the output terminal 3 of the automotive oil pressure sensor 1; the withstand voltage insulation test circuit performs a withstand voltage insulation test on the automotive oil pressure sensor 1.

[0047] This embodiment addresses the technical problem that in existing testing processes, manual testing is used, but high voltage is required for the withstand voltage insulation test of the oil pressure sensor, which poses a safety hazard to personnel. The embodiment provides an automotive oil pressure sensor withstand voltage insulation testing device that isolates personnel from the high voltage during the withstand voltage insulation test process.

[0048] To achieve the above technical effects, the automotive oil pressure sensor withstand voltage insulation testing device in this embodiment, such as... Figures 1-6 As shown, the automotive oil pressure sensor 1 is placed in the mounting hole of the test fixture 10.

[0049] To achieve the above technical effects, the automotive oil pressure sensor withstand voltage insulation testing device in this embodiment, such as... Figures 1-6 As shown, the test fixture 10 also includes:

[0050] An upper tooling 11 is fixed on the lifting plate 21 on one side of the middle of the lifting device 20; the upper tooling 11 is used to press down the automotive oil pressure sensor 1;

[0051] A recess 12 is made in the middle of the upper tooling 11; the upper part of the automotive oil pressure sensor 1 is aligned and embedded in the recess 12; the recess 12 is used to place the upper part of the automotive oil pressure sensor 1.

[0052] A lower fixture 13 is fixed on the lower fixing plate 22 on one side of the middle of the lifting device 20; the lower fixture 13 and the upper fixture 11 are fitted together by guide posts; a lead wire device 30 is set at the center of the lower fixture 13, below the automotive oil pressure sensor 1; the lower fixture 13 is used to install the lead wire device 30.

[0053] Positioning hole 14 is provided in the middle of the lower tooling 13; the lower half of the automotive oil pressure sensor 1 is placed in the positioning hole 14; the positioning hole 14 adopts the form of a single-sided square hole to position the automotive oil pressure sensor 1 in a unique direction.

[0054] To achieve the above technical effects, the automotive oil pressure sensor withstand voltage insulation testing device in this embodiment, such as... Figures 1-6As shown, the lifting device 20 also includes:

[0055] The cylinder body of the lifting cylinder 23 is fixed above the upper fixed plate 24 of the lifting device 20; the piston rod of the lifting cylinder 23 is connected to the lifting plate 21; the lifting cylinder 23 drives the upper tooling 11 to move up and down.

[0056] Guide columns 25, one end of several guide columns 25 is fixed on the upper fixed plate 24, and the lifting plate 21 is movably connected to the guide columns 25; the other side of the guide columns 25 is fixed on the lower fixed plate 26; the lower tooling 13 is fixed above the lower fixed plate 26;

[0057] A box 27 is fixed below the lower fixing plate 26;

[0058] A protective frame 28 is fixed above the lower fixing plate 26; the housing 27 and the protective frame 28 are used to isolate personnel from the test fixture 10.

[0059] A movable door 29 is connected to the front of the protective frame 28;

[0060] The piston rod of the protective cylinder 291 is connected above the sliding door 29; the cylinder body of the protective cylinder 291 is fixed above the upper fixed plate 24; the protective cylinder 291 drives the sliding door 29 and the upper fixture 11 to move up and down together. The sliding door 29, the protective cylinder 291, and the lifting cylinder 23 move up and down synchronously. This protects personnel and isolates them from the testing fixture 10.

[0061] To achieve the above technical effects, the automotive oil pressure sensor withstand voltage insulation testing device in this embodiment, such as... Figures 1-6 As shown, the lead wire assembly 30 also includes:

[0062] Lead 31 is fixed on the lower fixture 13 of the test fixture 10; an insulating sleeve is provided between lead 31 and the lower fixture 13;

[0063] Spring 32, several springs 32 are placed outside the lead wire 31;

[0064] Small guide post 33 is placed inside spring 32; one end of small guide post 33 is fixed to base plate 34.

[0065] A movable plate 35 is movably connected to several small guide posts 33. An automotive oil pressure sensor 1 is placed above the movable plate 35. During the downward pressing of the lifting device 20, the output terminal 3 of the automotive oil pressure sensor 1 is inserted into the lead wire 31. During the upward raising of the lifting device 20, the movable plate 35, under the action of a spring 32, pops the automotive oil pressure sensor 1 out of the fixture 13 for easy removal by personnel.

[0066] To achieve the above technical effects, the automotive oil pressure sensor withstand voltage insulation testing device in this embodiment, such as... Figures 1-6 As shown, the withstand voltage insulation test circuit port 201 and the high voltage port 202 of the AC withstand voltage insulation tester 2 are respectively connected to the lead wire 31.

[0067] To achieve the above technical effects, the automotive oil pressure sensor withstand voltage insulation testing device in this embodiment, such as... Figures 1-6 As shown, a start button 3 and a stop button 4 are provided on one side of the housing 27. The start button 34 and the stop button 5 are used to start and stop the automotive oil pressure sensor withstand voltage insulation testing device in this embodiment.

[0068] To achieve the above technical effects, the automotive oil pressure sensor withstand voltage insulation testing device in this embodiment, such as... Figures 1-6 As shown, a compressed air switch 5 and a solenoid valve 6 are installed on the other side of the housing 27. These are used to supply compressed air to the lifting device 20. The solenoid valve 6 controls the lifting cylinder 291 and the lifting cylinder 23, enabling them to move up and down.

[0069] In this embodiment, the withstand voltage insulation tester 2 outputs a rated high voltage, which is conducted to the oil pressure sensor 1 to measure the actual insulation resistance value. If it is greater than 1MΩ, it is qualified; if it is less than 1MΩ, it is unqualified, indicating that the internal insulation layer of the oil pressure sensor 1 has been broken down by the high voltage and has been grounded, resulting in insulation failure.

[0070] Test Steps: 1. Select "Switch Point Detection" mode; 2. Set the detection time; 3. Set the upper and lower pressure limits; 4. Select normally open / normally closed switch point; 5. Select the enabled channel; 6. Connect the switch point signal lines of test fixture 10 and withstand voltage insulation tester 2; 7. Place oil pressure sensor 1; 8. Start the mold by pressing the two-hand start button 3; 9. Wait for the test to end / result; 10. Indicator light turns green (product is qualified and in the open state); 11. Press the "Test" switch on withstand voltage insulation tester 2 to determine whether the withstand voltage insulation test is qualified; 12. Repeat steps 7-11 for different products.

[0071] Those skilled in the art will understand that the above embodiments are specific examples of implementing the present invention, and in practical applications, various changes can be made to them in form and detail without departing from the spirit and scope of the present invention.

Claims

1. A withstand voltage insulation testing device for an automotive oil pressure sensor, characterized in that, include: Automotive oil pressure sensor; The test fixture is used to place the automotive oil pressure sensor. A lifting device is used to position the test fixture above the lifting device. A lead wire device is provided below the test fixture; An AC withstand voltage insulation tester, wherein the withstand voltage insulation test circuit of the AC withstand voltage insulation tester is connected to the lead wire device; During the process of the lifting device driving the test fixture to descend, the lead wire device contacts the output terminal of the automotive oil pressure sensor; the withstand voltage insulation test circuit performs a withstand voltage insulation test on the automotive oil pressure sensor.

2. The automotive oil pressure sensor withstand voltage insulation testing device according to claim 1, characterized in that, The automotive oil pressure sensor is placed in the mounting hole of the test fixture.

3. The automotive oil pressure sensor withstand voltage insulation testing device according to claim 1, characterized in that, The aforementioned test fixture also includes: The upper tooling is fixed on the lifting plate on one side of the middle of the lifting device; A recessed hole is formed in the middle of the upper tooling; the upper part of the automotive oil pressure sensor is aligned and embedded in the recessed hole. The lower tooling is fixed on the lower fixing plate on one side of the middle of the lifting device; the lower tooling and the upper tooling are fitted together by guide posts; the lead wire device is set at the center of the lower tooling, below the automotive oil pressure sensor. A positioning hole is provided at the middle position of the lower tooling; the lower half of the automotive oil pressure sensor is placed in the positioning hole; the positioning hole is a single-sided square hole to position the automotive oil pressure sensor in a unique direction.

4. The automotive oil pressure sensor withstand voltage insulation testing device according to claim 1, characterized in that, The lifting device further includes: A lifting cylinder is fixed above the upper fixed plate of the lifting device; the piston rod of the lifting cylinder is connected to the lifting plate; the lifting cylinder drives the upper tooling to move up and down. Guide columns, one end of several guide columns is fixed on the upper fixed plate, and the lifting plate is movably connected to the guide columns; the other side of the guide columns is fixed on the lower fixed plate; a lower tooling is fixed above the lower fixed plate; A housing is fixed below the lower fixing plate; A protective frame is fixed above the lower fixing plate; A movable door is movably connected to the front of the protective frame; A protective cylinder is provided, with its piston rod connected above the movable door; the cylinder body of the protective cylinder is fixed above the upper fixed plate; the protective cylinder drives the movable door and the upper tooling to move up and down together.

5. The automotive oil pressure sensor withstand voltage insulation testing device according to claim 1, characterized in that, The lead wire device further includes: A lead wire is fixed on the lower fixture of the test fixture; an insulating sleeve is provided between the lead wire and the lower fixture. A spring, with several springs placed on the outside of the lead wire; Small guide post, the small guide post is placed inside the spring; one end of the small guide post is fixed to the base plate; A movable plate is movably connected to several small guide posts; the automotive oil pressure sensor is placed above the movable plate; the output terminal of the automotive oil pressure sensor is inserted into the lead wire during the downward pressing of the lifting device.

6. The automotive oil pressure sensor withstand voltage insulation testing device according to claim 1, characterized in that, The withstand voltage insulation test circuit port and the high voltage port of the AC withstand voltage insulation tester are respectively connected to the lead wires.

7. The automotive oil pressure sensor withstand voltage insulation testing device according to claim 4, characterized in that, A start button and a stop button are provided on one side of the enclosure.

8. The automotive oil pressure sensor withstand voltage insulation testing device according to claim 7, characterized in that, A compressed air switch and a solenoid valve are installed on the other side of the enclosure.

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