Pressure-resistant test fixture for sensor

Abstract

The utility model relates to the technical field of sensors, in particular to a pressure resistance test fixture for a sensor, which comprises an upper plate and a lower plate, a bump is arranged on the upper surface of the lower plate, a plurality of lower grooves are arranged on the upper surface of the bump, one end of each lower groove penetrates through the side wall of the bump, and the other end of each lower groove penetrates through the side wall of the bump. A plurality of upper grooves are formed in the lower surface of the upper plate, one end of each upper groove penetrates through the side wall of the upper plate, the positions of the upper grooves correspond to the positions of the lower grooves, and sensors are placed between the upper grooves and the lower grooves; the circumferential surface of the sensor abuts against the inner walls of the lower groove and the upper groove. According to the utility model, withstand voltage detection can be carried out on a plurality of sensors at a time.

Description

Technical Field

[0001] This utility model relates to the technical field of sensors, and in particular to a sensor withstand pressure test fixture. Background Technology

[0002] Sensors detect non-electrical quantities (such as temperature, pressure, light, and magnetism) through sensing elements, convert them into electrical signals (such as voltage, current, and charge) using conversion elements, and then amplify and modulate these electrical signals through a conversion circuit, ultimately outputting a signal that can be processed or displayed. Sensors are widely used in industrial production, space exploration, ocean exploration, environmental protection, resource surveys, medical diagnosis, bioengineering, and cultural relic preservation. For example, temperature sensors are used to measure temperature and are widely used in smart homes and industrial production; pressure sensors are used to measure the pressure of liquids or gases and are commonly found in pneumatic and hydraulic systems.

[0003] Currently, after sensors are manufactured, they need to undergo pressure resistance testing to determine if their pressure resistance rating is up to standard. Traditional testing methods often involve placing the sensor directly in a pressure tester, which applies pressure to the sensor and then checks for damage to determine if the sensor's pressure resistance rating is up to standard. However, this testing method can only measure one sensor at a time, making it inefficient. Utility Model Content

[0004] In order to perform pressure resistance testing on multiple sensors at the same time, this utility model provides a sensor pressure resistance test fixture to address the problems of the prior art.

[0005] This utility model provides a sensor withstand voltage test fixture, which adopts the following technical solution:

[0006] A sensor withstand voltage test fixture includes an upper plate and a lower plate. The upper surface of the lower plate is provided with a protrusion, and the upper surface of the protrusion is provided with a plurality of lower grooves. One end of each lower groove passes through the side wall of the protrusion. The lower surface of the upper plate is provided with a plurality of upper grooves, one end of each upper groove passing through the side wall of the upper plate. The positions of the plurality of upper grooves and the plurality of lower grooves are respectively corresponding. A sensor is placed between the upper grooves and the lower grooves, and the peripheral surface of the sensor abuts against the inner walls of the lower grooves and the upper grooves.

[0007] Preferably, the upper surface of the upper plate is provided with a plurality of ribs, the ribs are arranged diagonally along the upper plate, and a pressure plate is connected between the tops of the plurality of ribs.

[0008] Preferably, guide posts are provided at the four corners of the upper surface of the protrusion, and the guide posts are movably inserted through the upper plate.

[0009] Preferably, both the upper groove and the lower groove are arc-shaped, and the circumferential diameter of the upper groove and the lower groove is larger than the circumferential diameter of the sensor.

[0010] Preferably, a silicone block is provided on the lower plate, and multiple elastic buckles are provided on the silicone block, with the sensor signal line engaging with the elastic buckles.

[0011] Preferably, the upper plate is provided with a plug groove, the plug groove extends through the upper and lower surfaces of the lower plate, and the silicone block engages with the plug groove.

[0012] Preferably, the sidewall of the silicone block is provided with a raised edge, and the bottom of the insertion groove is provided with a step, with the raised edge fitting into the step.

[0013] In summary, this utility model includes at least one of the following sensor withstand voltage test clips, which has beneficial technical effects:

[0014] After the operator places the probes of multiple randomly selected sensors between the upper and lower grooves, the operator places the upper and lower plates on the pressure tester. The pressure tester applies pressure to the pressure plate, and the pressure is transmitted to the sensor probes. After the specified pressure and test time, the operator removes the sensors to check whether they are damaged. This allows for the simultaneous testing of multiple sensors, which is convenient and quick. Attached Figure Description

[0015] Figure 1 This is a schematic diagram of the overall structure of this utility model.

[0016] Figure 2 This is a side view of the present invention.

[0017] Figure 3 This is an exploded view of the present invention.

[0018] Figure 4 This is a schematic diagram showing the assembly relationship between the lower plate and the silicone block in this utility model.

[0019] In the diagram: 1. Upper plate; 11. Upper groove; 12. Rib; 13. Pressure plate; 2. Lower plate; 21. Protrusion; 211. Lower groove; 22. Guide post; 23. Insertion slot; 231. Step; 3. Sensor; 4. Silicone block; 41. Elastic buckle; 42. Protruding edge; Detailed Implementation

[0020] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0021] In the description of this application, it should be noted that the terms "center," "upper," "lower," "left," "right," "vertical," "horizontal," "inner," and "outer," 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 commonly used when the product of this application is in use. They are only for the convenience of describing this application 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, and therefore should not be construed as a limitation on this application. In addition, the terms "first," "second," and "third," etc., are only used to distinguish descriptions and should not be construed as indicating or implying relative importance.

[0022] This utility model discloses a sensor withstand voltage test fixture, such as... Figure 1-4As shown, the system includes an upper plate 1 and a lower plate 2. The upper plate 1 is located directly above the lower plate 2. A protrusion 21 is integrally formed on the upper surface of the lower plate 2. Multiple lower grooves 211 are formed on the upper surface of the protrusion 21. The multiple lower grooves 211 are spaced apart along the length direction of the protrusion 21. One end of the multiple lower grooves 211 passes through one side wall of the protrusion 21. Multiple upper grooves 11 are formed on the lower surface of the upper plate 1 along the length direction of the protrusion 21. One end of the multiple upper grooves 11 passes through one side wall of the upper plate 1. The positions of the multiple upper grooves 11 and the multiple lower grooves 211 are respectively corresponding. A sensor 3 is placed between the upper grooves 11 and the lower grooves 211. The sensor 3 includes a probe and a signal line. The probe of the sensor 3 is cylindrical. The circumferential surface of the probe of the sensor 3 abuts against the lower grooves 211 and the upper grooves 211. The inner wall of groove 11 has a gap between the upper plate 1 and the protrusion 21. After placing the probes of multiple sensors 3 between the upper groove 11 and the lower groove 211, the operator places the upper plate 1 and the lower plate 2 on the pressure tester. The lower plate 2 is attached to the test platform of the pressure tester, and the pressure tester applies pressure to the upper plate 1. The pressure on the upper plate 1 is transmitted to the probes of the sensors 3. The pressure sensor 3 of the pressure tester measures the pressure on the upper plate 1 in real time and transmits the data to the control system. The pressure on the sensor 3 is obtained by subtracting the weight of the upper plate 1 from the pressure data of the pressure sensor 3 and dividing by the number of multiple sensors 3. After the specified pressure and test time, the operator removes the sensors 3 and checks whether the sensors 3 are damaged. In addition, both the upper groove 11 and the lower groove 211 are arc-shaped. The circumferential diameter of the upper groove 11 and the lower groove 211 is larger than the circumferential diameter of the sensor 3 probe. This makes the force on the sensor 3 probe more uniform. At the same time, the upper groove 11 and the lower groove 211 can limit the movement of multiple sensors 3, making it less likely for the sensors 3 to deviate during testing.

[0023] In addition, guide posts 22 are welded to the four corners of the upper surface of the protrusion 21. The guide posts 22 movably pass through the upper plate 1 and guide the upper plate 1. After the upper plate 1 is assembled onto the lower plate 2, the multiple upper grooves 11 and multiple lower grooves 211 can be precisely aligned. In addition, multiple ribs 12 are welded to the upper surface of the upper plate 1. The ribs 12 are arranged diagonally along the upper plate 1. A pressure plate 13 is welded between the tops of the multiple ribs 12. During the compression test, because the upper plate 1 has a large area, the compression tester applies pressure to the pressure plate 13, and then the pressure is transmitted to the upper plate 1 through the ribs 12. This ensures that the upper plate 1 is subjected to uniform force.

[0024] Additionally, a silicone block 4 is installed on the lower plate 2. Multiple elastic clips 41 are integrally formed on the upper surface of the silicone block 4, spaced apart along the length of the protrusion 21. The signal line of the sensor 3 engages with the elastic clips 41. After the operator places the sensor 3 probe between the upper groove 11 and the lower groove 211, the signal line of the sensor 3 is secured by snapping it close to the elastic clips 41. Furthermore, an insertion slot 23 is provided on the upper surface of the upper plate 1, extending through the upper and lower surfaces of the lower plate 2. The silicone block 4 engages with the insertion slot 23, and the lower surface of the silicone block 4 is flush with the lower surface of the lower plate 2. The operator can then secure the silicone block 4 to the lower plate 2 by snapping it close to the insertion slot 23, making assembly more convenient. In addition, the sidewall of the silicone block 4 is integrally formed with a protruding edge 42, and the bottom of the insertion groove 23 is provided with a step 231. The protruding edge 42 is fitted into the step 231, so that when the silicone block 4 and the lower plate 2 are assembled, the upper and lower surfaces of the silicone block 4 and the lower plate 2 are better aligned.

[0025] The implementation principle of the sensor pressure resistance test fixture of this utility model embodiment is as follows: After the operator places the probes of multiple randomly selected sensors 3 into the space between the upper groove 11 and the lower groove 211, the operator places the upper plate 1 and the lower plate 2 on the pressure tester. The lower plate 2 is attached to the test platform of the pressure tester, and the pressure tester applies pressure to the pressure plate 13. The pressure is transmitted to the probes of the sensor 3. The pressure sensor 3 of the pressure tester measures the pressure on the upper plate 1 in real time and transmits the data to the control system. After the specified pressure and test time, the operator removes the sensor 3 and checks whether the sensor 3 is damaged. This realizes the pressure resistance test of multiple sensors 3 at one time, which is convenient and fast.

[0026] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some changes or modifications to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and modifications made to the above embodiments based on the present utility model without departing from the scope of the present utility model shall fall within the scope of the present utility model.

Claims

1. A sensor voltage withstand test fixture, characterized by: The application relates to a sensor fixing device, which comprises an upper plate (1) and a lower plate (2), the upper surface of the lower plate (2) is provided with a convex block (21), the upper surface of the convex block (21) is provided with a plurality of lower grooves (211), one end of the lower grooves (211) penetrates the side wall of the convex block (21), the lower surface of the upper plate (1) is provided with a plurality of upper grooves (11), one end of the upper grooves (11) penetrates the side wall of the upper plate (1), the positions of the plurality of upper grooves (11) and the plurality of lower grooves (211) correspond to each other respectively, the upper grooves (11) and the lower grooves (211) are used for placing a sensor (3), and the peripheral surface of the sensor (3) abuts against the inner walls of the upper grooves (11) and the lower grooves (211).

2. The sensor voltage withstanding test fixture according to claim 1, wherein: The upper surface of the upper plate (1) is provided with a plurality of rib plates (12), the rib plates (12) are arranged along the diagonal direction of the upper plate (1), and the top portions of the plurality of rib plates (12) are connected with a pressing plate (13).

3. The sensor voltage withstand test fixture of claim 1, wherein: The upper surface of the convex block (21) is provided with guide columns (22) at four corner portions, and the guide columns (22) movably penetrate the upper plate (1).

4. The sensor voltage withstand test fixture of claim 1, wherein: The upper grooves (11) and the lower grooves (211) are arranged in a circular arc shape, and the circumferential diameters of the upper grooves (11) and the lower grooves (211) are greater than the circumferential diameter of the sensor (3).

5. The sensor voltage withstand test fixture of claim 1, wherein: The lower plate (2) is provided with a silica gel block (4), the silica gel block (4) is provided with a plurality of elastic buckles (41), and the signal line of the sensor (3) is in clamping cooperation with the elastic buckles (41).

6. The sensor voltage withstand test fixture of claim 1, wherein: The upper plate (1) is provided with a plug-in groove (23), the plug-in groove (23) penetrates the upper surface and the lower surface of the lower plate (2), the silica gel block (4) is in clamping cooperation with the plug-in groove (23).

7. The sensor voltage withstand test fixture of claim 1, wherein: The side wall of the silica gel block (4) is provided with a convex edge (42), the bottom of the plug-in groove (23) is provided with a step (231), and the convex edge (42) is embedded on the step (231).

Images