Testing device for piezoresistor
By designing an automated varistor testing device, which utilizes a delivery component and a testing component to automatically test the electrode contact varistor, the problem of cumbersome manual testing is solved, and the testing efficiency and ease of operation are improved.
Patent Information
- Application Number
- CN202423224796.7
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-12-26
- Publication Date
- 2026-01-16
- Estimated Expiration
- 2034-12-26
AI Technical Summary
Existing varistor testing devices rely on manual testing, which is cumbersome, time-consuming, and labor-intensive, resulting in low testing efficiency.
A testing device was designed, comprising a testing stage, a conveying component, and a testing component. The conveying component automatically delivers a varistor, and the testing component automatically contacts the two poles of the varistor for testing. The device is then combined with a DC parameter tester for detection.
It has enabled automated testing of varistors, improved testing efficiency, simplified the operation process, and made it easy to quickly know the test results.
Smart Images
Figure CN223808519U_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The utility model belongs to resistance test technical field especially relates to a testing arrangement for piezoresistor. BACKGROUND
[0002] The piezoresistor is a kind of resistance device with nonlinear volt-ampere characteristic, mainly used for voltage clamping when circuit bears overvoltage, absorbs redundant current to protect sensitive device.The resistance body material of piezoresistor is semiconductor, so it is a variety of semiconductor resistor."Zinc oxide" (ZnO) piezoresistor that is used in large quantities now, and its main body material is composed of divalent element zinc (Zn) and six-valence element oxygen (O).
[0003] The existing piezoresistor needs to be tested when producing, tests whether product is qualified, and the existing testing device mainly relies on the staff hand-held test pen to contact test both ends of piezoresistor, and manual test is more cumbersome, time-consuming and laborious, and detection efficiency is low, so we provide a testing arrangement for piezoresistor. UTILITY MODEL CONTENTS
[0004] To solve the above problems, the utility model aims at providing a testing arrangement for piezoresistor.
[0005] To realize the above purpose, the utility model provides a testing arrangement for piezoresistor, including detection table and direct current parameter tester, the top of detection table is equipped with installation slot, the inside of installation slot is equipped with conveying assembly, and the conveying assembly is used for conveying piezoresistor to be detected, the top of detection table is fixedly connected with fixed frame, and the fixed frame is installed with test assembly, and the test assembly is used in cooperation with direct current parameter tester to test piezoresistor to be detected.
[0006] Preferably, the conveying assembly includes two side plates fixedly connected on both sides of detection table, a plurality of conveying rollers are rotatably connected on installation slot and side plate, the outer part of conveying roller located at the leftmost side and the rightmost side is sleeved with conveying belt, one of side plates is fixedly connected with first driving motor, and the output shaft of first driving motor is fixedly connected with conveying roller.
[0007] Preferably, the test assembly comprises a second driving motor fixedly connected to the fixed frame, an output shaft of the second driving motor is fixedly connected with a disc, the bottom of the disc is fixedly connected with two poking rods, the outside of the poking rods is movably sleeved with a traction rod, the side away from the poking rods of the traction rod is movably sleeved with a vertical rod, the bottom end of the vertical rod is fixedly connected with a ring, the inside of the ring is fixedly sleeved with a fixed tube, one end of the fixed tube is fixedly connected with a sliding block, the end away from the sliding block of the fixed tube is fixedly connected with a test electrode, the outside of the fixed tube is fixedly connected with a connecting plate, the end away from the fixed tube of the connecting plate is fixedly connected with a deviation rectifying plate.
[0008] Preferably, the both sides of the mounting groove are provided with sliding grooves, and the sliding block is slidably arranged in the sliding grooves, a wire is connected to the test electrode, and the wire is movably sleeved in the inside of the fixed tube, and the end away from the test electrode of the wire is connected with the direct current parameter tester.
[0009] Preferably, the bottom of the sliding groove is provided with a through hole penetrating through the detection table along the length direction of the sliding groove, and the wire penetrates through the through hole.
[0010] Preferably, the bottom of the direct current parameter tester is fixedly connected with a supporting plate, and the supporting plate is fixedly connected with the side plate.
[0011] The test device for piezoresistor can bring the following beneficial effects:
[0012] 1. The piezoresistor to be tested is conveyed by the conveying assembly, so that the staff only needs to place the piezoresistor on the conveying assembly, without the need of placing and manually testing;
[0013] 2. When the piezoresistor is tested by the test assembly, the piezoresistor is first extruded and deviation-rectified, and then the two poles of the piezoresistor are synchronously contacted and tested, so that the test is conveniently and quickly completed, and the staff can quickly know the test result;
[0014] In summary, the scheme has the advantages of simple structure, novel design, no need of manually testing the piezoresistor, convenient and efficient testing, quick test result for the staff, and is suitable for enterprise popularization and application. BRIEF DESCRIPTION OF DRAWINGS
[0015] The drawings described herein are used to provide further understanding of the present application, and form a part of the present application. The schematic embodiments of the present application and the description thereof are used to explain the present application, and do not constitute improper limitation on the present application.
[0016] In the drawings:
[0017] Figure 1 It is a front view structural schematic diagram of the present application.
[0018] Figure 2 It is a side view structural schematic diagram of the utility model.
[0019] Figure 3 It is a sectional view structural schematic diagram of the utility model.
[0020] Figure 4 It is a three-dimensional structural schematic diagram of the utility model.
[0021] Figure 5 It is a three-dimensional structural schematic diagram of the test assembly of the utility model.
[0022] In the drawing: 1 detection table, 2 installation slot, 3 side plate, 4 conveying roller, 5 conveying belt, 6 first drive motor, 7 fixed frame, 8 test assembly, 801 second drive motor, 802 disc, 803 toggle lever, 804 traction rod, 805 vertical rod, 806 circular ring, 807 fixed tube, 808 sliding block, 809 test electrode, 810 connecting plate, 811 deviation rectifying plate, 9 wire, 10 direct current parameter tester, 11 supporting plate, 12 sliding groove. DETAILED DESCRIPTION
[0023] In order to more clearly illustrate the overall concept of the utility model, the following will be described in detail in the form of example combined with the drawings of the specification.
[0024] In the description of the utility model, it is understood that the orientation or positional relationship indicated by the terms "center", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "axial", "radial", "circumferential" are based on the orientation or positional relationship shown in the drawings, and are only for the convenience of describing the utility model and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements indicated must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the utility model.
[0025] In addition, the terms "first", "second" are only for the purpose of description, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined with "first", "second" can explicitly or implicitly include one or more of the features. In the description of the utility model, the meaning of "multiple" is two or more than two, unless otherwise specifically limited.
[0026] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection, an electrical connection, or a communication connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0027] In this invention, unless otherwise expressly specified and limited, the first feature "on" or "below" the second feature may be in direct contact with the first and second features, or indirect contact through an intermediate medium. In the description of this specification, references to terms such as "a solution," "some solutions," "example," "specific example," or "some examples," etc., indicate that a specific feature, structure, material, or characteristic described in connection with that solution or example is included in at least one solution or example of this invention. In this specification, the illustrative expressions of the above terms do not necessarily refer to the same solution or example. Furthermore, the specific features, structures, materials, or characteristics described may be combined in any suitable manner in one or more solutions or examples.
[0028] like Figures 1-5 As shown in the figure, an embodiment of the present invention provides a testing device for a varistor, including a testing platform 1 and a DC parameter tester 10. The top of the testing platform 1 is provided with a mounting groove 2, and a conveying component is provided inside the mounting groove 2. The conveying component is used to convey the varistor to be tested. A fixing frame 7 is fixedly connected to the top of the testing platform 1, and a testing component 8 is installed on the fixing frame 7. The testing component 8 is used in conjunction with the DC parameter tester 10 to test the varistor to be tested.
[0029] like Figure 3 and Figure 4 As shown, the conveying assembly includes two side plates 3 fixedly connected to both sides of the testing table 1. Multiple conveying rollers 4 are rotatably connected to the mounting groove 2 and the side plates 3. A conveyor belt 5 is sleeved on the outside of the leftmost and rightmost conveying rollers 4. A first drive motor 6 is fixedly connected to one of the side plates 3, and the output shaft of the first drive motor 6 is fixedly connected to the conveying roller 4. The first drive motor 6 drives the conveying roller 4 to rotate, and the conveying roller 4 drives the conveyor belt 5 to rotate. The conveyor belt 5 conveys the piezoresistor to be tested.
[0030] like Figure 5As shown, the test assembly 8 comprises a second driving motor 801 fixedly connected to the fixing frame 7, an output shaft of the second driving motor 801 is fixedly connected with a disc 802, the bottom of the disc 802 is fixedly connected with two toggle levers 803, the outside of the toggle lever 803 is movably sleeved with a traction rod 804, the side, away from the toggle lever 803, of the traction rod 804 is movably sleeved with a vertical rod 805, the bottom end of the vertical rod 805 is fixedly connected with a circular ring 806, the inside of the circular ring 806 is fixedly sleeved with a fixed tube 807, one end of the fixed tube 807 is fixedly connected with a sliding block 808, the end, away from the sliding block 808, of the fixed tube 807 is fixedly connected with a test electrode 809, the outside of the fixed tube 807 is fixedly connected with a connecting plate 810, the end, away from the fixed tube 807, of the connecting plate 810 is fixedly connected with a deviation rectifying plate 811, the second driving motor 801 drives the disc 802 to rotate forward and reversely by 90 degrees, so that the disc 802 drives the traction rod 804 to move through the toggle lever 803, the traction rod 804 drives the vertical rod 805 to move, the vertical rod 805 drives the fixed tube 807 to move close to or away from each other, and the fixed tube 807 drives the test electrode 809 to move, the test electrode 809 contacts two poles of the pressure sensitive resistor to test.
[0031] As shown in Figure 4 The two sides of the installation groove 2 are provided with sliding grooves 12, and the sliding block 808 is slidably arranged in the sliding groove 12, the test electrode 809 is connected with a wire 9, the wire 9 is movably sleeved in the inside of the fixed tube 807, the end, away from the test electrode 809, of the wire 9 is connected with a direct current parameter tester 10, the sliding groove 12 guides the sliding of the sliding block 808, and the direct current parameter tester 10 tests the pressure sensitive resistor.
[0032] As shown in Figure 4 The bottom of the sliding groove 12 is provided with a through hole penetrating through the detection table 1 along the length direction of the sliding groove 12, and the wire 9 penetrates through the through hole.
[0033] As shown in Figure 4 Figure 4 The bottom of the direct current parameter tester 10 is fixedly connected with a supporting plate 11, and the supporting plate 11 is fixedly connected with the side plate 3.
[0034] Working principle: the staff manually place the pressure sensitive resistor to be tested on the conveying belt 5, the first drive motor 6 drives the conveying roller 4 to rotate, the conveying roller 4 drives the conveying belt 5 to rotate, the conveying belt 5 will convey the pressure sensitive resistor to be detected, and when testing, the first drive motor 6 stops working, the second drive motor 801 drives the disc 802 to rotate 90 degrees, so that the disc 802 drives the traction rod 804 to move through the poking rod 803, the traction rod 804 drives the vertical rod 805 to move, the vertical rod 805 drives the fixed tube 807 to move close to or away from each other, the fixed tube 807 drives the test electrode 809 to move, the test electrode 809 contacts the two poles of the pressure sensitive resistor for testing, the direct current parameter tester 10 completes the test of the pressure sensitive resistor, and the fixed tube 807 also drives the connecting plate 810 to move, the connecting plate 810 drives the deviation rectifying plate 811 to move, so that the two deviation rectifying plates 811 are folded to rectify the pressure sensitive resistor during testing, facilitating the test of the test electrode 809.
[0035] Each embodiment in the specification is described in a progressive manner, and the same and similar parts between each embodiment can be referred to each other, and each embodiment mainly describes the difference from other embodiments. Especially, for the system embodiment, since it is basically similar to the method embodiment, the description is relatively simple, and the related parts can be referred to the part of the method embodiment.
[0036] The above only describes the embodiments of the present application and does not limit the present application. For those skilled in the art, the present application can be variously changed and modified. Any modification, equivalent replacement, improvement, etc. within the spirit and principle of the present application shall be included in the scope of the claims of the present application.
Claims
1. A test device for piezoresistance, comprising a detection table (1) and a direct current parameter tester (10), characterized in that: a mounting groove (2) is formed on the top of the detection table (1); a conveying assembly is arranged in the mounting groove (2) and used for conveying the piezoresistance to be detected; a fixing frame (7) is fixedly connected to the top of the detection table (1), and a test assembly (8) is arranged on the fixing frame (7) and used in cooperation with the direct current parameter tester (10) to test the piezoresistance to be detected.
2. The test device for piezoresistance according to claim 1, characterized in that: the conveying assembly comprises two side plates (3) fixedly connected to the two sides of the detection table (1); a plurality of conveying rollers (4) are rotatably connected to the mounting groove (2) and the side plates (3), and a conveying belt (5) is arranged on the outer sides of the leftmost and rightmost conveying rollers (4); one of the side plates (3) is fixedly connected with a first driving motor (6), and the output shaft of the first driving motor (6) is fixedly connected with the conveying rollers (4).
3. The test device for piezoresistance according to claim 1, characterized in that: the test assembly (8) comprises a second driving motor (801) fixedly connected to the fixing frame (7); the output shaft of the second driving motor (801) is fixedly connected with a disc (802); the bottom of the disc (802) is fixedly connected with two toggle levers (803); the outer sides of the toggle levers (803) are movably sleeved with a traction rod (804); the side, away from the toggle levers (803), of the traction rod (804) is movably sleeved with a vertical rod (805); the bottom end of the vertical rod (805) is fixedly connected with a circular ring (806), and the inner side of the circular ring (806) is fixedly sleeved with a fixing tube (807); one end of the fixing tube (807) is fixedly connected with a sliding block (808); the end, away from the sliding block (808), of the fixing tube (807) is fixedly connected with a test electrode (809); the outer side of the fixing tube (807) is fixedly connected with a connecting plate (810); the end, away from the fixing tube (807), of the connecting plate (810) is fixedly connected with a deviation rectifying plate (811).
4. The test device for piezoresistance according to claim 3, characterized in that: the two sides of the mounting groove (2) are formed with sliding grooves (12), and the sliding block (808) is slidably arranged in the sliding grooves (12); the test electrode (809) is connected with a wire (9), and the wire (9) is movably sleeved in the fixing tube (807); and the end, away from the test electrode (809), of the wire (9) is connected with the direct current parameter tester (10).
5. The test device for piezoresistance according to claim 4, characterized in that: the bottom of the sliding groove (12) is formed with a through hole penetrating through the detection table (1) along the length direction of the sliding groove (12), and the wire (9) penetrates through the through hole.
6. The test device for piezoresistance according to claim 1, characterized in that: The bottom of the direct current parameter tester (10) is fixedly connected with a supporting plate (11), and the supporting plate (11) is fixedly connected with the side plate (3).