Piezoresistor performance testing device

Abstract

The utility model discloses a piezoresistor performance testing device, which comprises a lightning protection performance testing device main body, the lightning protection performance testing device main body comprises a base, a rotating disc, a fixing frame, a testing frame and a testing jack, the rotating disc is rotatably connected to the upper surface of the base through a rotating shaft, the fixing frame is arranged on the upper surface of the rotating disc, and the testing frame is arranged on the rotating disc. The testing frames are arranged at two ends of the upper surface of the fixing frame; through the design of the dustproof mechanism, after the lightning protection performance test device main body accurately tests the piezoresistor, the test jack is exposed to the outside, the protection plate elastically slides under the action of deformation of the elastic block, and the protection plate elastically slides to drive the control slide block to slide and control in the control slide groove. When the lightning protection performance testing device main body is not used and placed, dust is not easy to enter into the lightning protection performance testing device main body through the testing jack, and dustproof protection is facilitated.

Description

Technical Field

[0001] The utility model belongs to the technical field of performance testing devices, and in particular relates to a varistor performance testing device. Background Art

[0002] A varistor is a resistor device with nonlinear volt-ampere characteristics. It is mainly used to clamp voltage when the circuit is subjected to overvoltage, absorb excess current to protect sensitive devices, and the varistor needs to be tested for lightning protection performance after processing and production. It is usually tested by a lightning protection performance test device. The existing performance test device is in stable contact during use for measurement operations, and is more stably placed during measurement. It is also convenient for dust protection, which improves the dust protection effect of the lightning protection performance test device on the varistor after the lightning protection performance test, and the test is more accurate.

[0003] According to a multifunctional high-voltage lightning protection performance testing equipment disclosed in the authorized patent application No. 202021230839.1, after the existing performance testing device tests the lightning protection performance of the varistor, it is directly placed in the placement position, and the test jack is exposed to the outside world, which is not convenient for dust protection of the test jack. The test jack is exposed to the outside world and it is easy for dirt to enter the inside. After the lightning protection performance test is inserted again, it is easy to cause poor contact during the test, which is not conducive to accurate testing again, affecting the dust protection effect of the performance testing device on the varistor after the lightning protection performance test, and the test is inaccurate. For this reason, the utility model proposes a varistor performance testing device. Utility Model Content

[0004] The purpose of the utility model is to provide a varistor performance testing device to solve the problem proposed in the above background technology that after the existing performance testing device tests the varistor's lightning protection performance, it is not convenient to protect the test jack from dust, so that the test jack is exposed to the outside and it is easy for dirt to enter the inside. After the lightning protection performance test is inserted again, it is easy to cause poor contact during the test, affecting the dust protection effect of the performance testing device on the varistor after the lightning protection performance test, and the test is inaccurate.

[0005] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a varistor performance test device, including a lightning protection performance test device body, the lightning protection performance test device body including a base, a rotating disk, a fixed frame, a test frame and a test jack, the rotating disk is rotatably connected to the upper surface of the base through a rotating shaft, the fixed frame is arranged on the upper surface of the rotating disk, the test frame is arranged at both ends of the upper surface of the fixed frame, the test jack is opened inside the test frame, one end of the base is clamped and installed with a wire, the end of the wire is provided with a lightning protection tester, and the lightning protection performance test device body is also provided with:

[0006] A dustproof mechanism, and the dustproof mechanism includes a dustproof component and a control component, the dustproof components are arranged at both ends of the test jack and inside the test frame, and the control component is arranged on the side of the dustproof component;

[0007] The fixed installation mechanism comprises an adsorption and fixing component and a rotational installation component. The adsorption and fixing component is arranged on the lower surface of the base, and the rotational installation component is arranged at the end of the adsorption and fixing component.

[0008] Preferably, the dustproof component includes an adjustment slot opened at the end of the test jack and located inside the wire, elastic blocks are provided at both ends of the adjustment slot, and protective plates are elastically connected to the ends of the elastic blocks.

[0009] Preferably, the two protection plates are symmetrically arranged, and arc grooves are provided on the end surfaces of the protection plates.

[0010] Preferably, the control assembly includes two control slide grooves opened on both sides of the adjustment groove, and control sliding blocks are arranged at both ends of the protective plate.

[0011] Preferably, the control slider is slidably connected to the inside of the control slide groove, and the end of the protective plate and the inner side of the adjustment groove are controlled and slidably connected to the control slide groove through the control slider.

[0012] Preferably, the adsorption and fixing assembly comprises grooves provided at the edge and the middle position of the lower surface of the base, and a fixing suction cup is provided inside the groove.

[0013] Preferably, the rotating installation assembly includes a threaded column arranged at the middle position of the top of the fixed suction cup, an internal threaded hole is opened at the inner top of the groove, and the fixed suction cup and the inside of the groove are rotationally fixedly connected through the threaded column and the internal threaded hole.

[0014] Compared with the prior art, the beneficial effects of the utility model are:

[0015] By designing a dustproof mechanism, after the main body of the lightning protection performance test device has accurately tested the varistor, the test socket is exposed to the outside and placed. The deformation of the elastic block causes the protective plate to slide elastically. When the protective plate slides elastically, it drives the control slider to slide and control the internal sliding of the control slide groove, so that the two protective plates are elastically closed on the surface of the test socket for dust protection. When the main body of the lightning protection performance test device is not in use, dust is not easy to enter the inside through the test socket, which is convenient for dust protection. Poor contact is not likely to occur during the next measurement, thereby improving the dustproof protection effect of the main body of the lightning protection performance test device on the varistor after the lightning protection performance test, and making the test more accurate. BRIEF DESCRIPTION OF THE DRAWINGS

[0016] Figure 1It is a schematic diagram of the structure of the utility model;

[0017] Figure 2 For this utility model Figure 1 The middle part A is a schematic diagram of the enlarged structure of the female;

[0018] Figure 3 It is a partial cross-sectional structural schematic diagram of the protective plate, elastic block and test frame of the utility model;

[0019] Figure 4 It is a partial cross-sectional structural schematic diagram of the test jack, adjustment slot and test stand of the utility model;

[0020] Figure 5 This is a schematic diagram of the base, internal threaded hole and fixed suction cup structure of the utility model;

[0021] Figure 6 For this utility model Figure 5 The middle B part is a schematic diagram of the enlarged structure of the female;

[0022] In the figure: 100, main body of the lightning protection performance test device; 101, base; 1011, groove; 1012, internal threaded hole; 1013, fixed suction cup; 1014, threaded column; 102, rotating disk; 103, fixed frame; 104, test frame; 105, wire; 106, lightning protection tester; 107, test jack; 1071, protective plate; 1072, elastic block; 1073, control slider; 1074, control slide; 1075, adjustment slot. DETAILED DESCRIPTION

[0023] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0024] See also Figures 1 to 6The utility model provides a technical solution: a varistor performance test device, including a lightning protection performance test device body 100, the lightning protection performance test device body 100 includes a base 101, a rotating disk 102, a fixed frame 103, a test frame 104 and a test jack 107, the rotating disk 102 is rotatably connected to the upper surface of the base 101 through a rotating shaft, the fixed frame 103 is arranged on the upper surface of the rotating disk 102, the test frame 104 is arranged at both ends of the upper surface of the fixed frame 103, the test jack 107 is opened inside the test frame 104, one end of the base 101 is clamped and installed with a wire 105, and the end of the wire 105 is provided with a lightning protection tester 106, and the lightning protection performance test device body 100 is also provided with:

[0025] A dustproof mechanism is provided, and the dustproof mechanism includes a dustproof component and a control component. The dustproof components are arranged at both ends of the test socket 107 and are located inside the test frame 104. The control component is arranged on the side of the dustproof component. After the test, the main body 100 of the lightning protection performance test device can be closed on the surface of the test socket 107 by the dustproof mechanism for dust protection. When measuring again, poor contact is less likely to occur, thereby improving the dustproof protection effect of the main body 100 of the lightning protection performance test device on the varistor after the lightning protection performance test, and the test is more accurate.

[0026] In order to facilitate dust protection of the interior of the test jack 107 through the dustproof component and prevent dust from entering the interior after use, in the present embodiment, preferably, the dustproof component includes an adjustment slot 1075 opened at the end of the test jack 107 and located inside the wire 105, and elastic blocks 1072 are provided at both ends of the adjustment slot 1075, and protective plates 1071 are elastically connected to the ends of the elastic blocks 1072. The two protective plates 1071 are symmetrically arranged, and arc grooves are provided on the end surfaces of the protective plates 1071. The protective plates 1071 can be elastically connected by the elastic blocks 1072, and the two protective plates 1071 are elastically closed on the surface of the test jack 107 for dust protection.

[0027] In order to facilitate the more stable movement, opening or closing of the protective plate 1071 by controlling the sliding assembly, in the present embodiment, preferably, the control assembly includes two control slide grooves 1074 opened on both sides of the adjustment groove 1075, and control sliders 1073 are provided at both ends of the protective plate 1071. The control slider 1073 is slidingly connected with the inside of the control slide groove 1074, and the end of the protective plate 1071 and the inner side of the adjustment groove 1075 are controlled and slidably connected with the control slide groove 1074 through the control slider 1073. When the protective plate 1071 slides, the control slider 1073 is driven to slide inside the control slide groove 1074, so that the protective plate 1071 is stably opened or closed for protection.

[0028] A fixed installation mechanism, and the fixed installation mechanism includes an adsorption fixing component and a rotation mounting component. The adsorption fixing component is arranged on the lower surface of the base 101, and the rotation mounting component is arranged at the end of the adsorption fixing component. During the test operation, the main body 100 of the lightning protection performance test device can be fixedly placed in the use position by the fixed installation mechanism, so as to stabilize the test operation and improve the fixity of the main body 100 of the lightning protection performance test device for the varistor lightning protection performance test operation.

[0029] In order to facilitate the better adsorption and fixation of the base 101 through the adsorption and fixing component, so that the main body 100 of the lightning protection performance testing device can be stably placed for performance testing, in this embodiment, preferably, the adsorption and fixing component includes a groove 1011 opened at the edge and the middle position of the lower surface of the base 101, and a fixed suction cup 1013 is arranged inside the groove 1011, so that the fixed suction cup 1013 can be installed and contacted with the placement surface for adsorption and fixation, so as to achieve more stable testing.

[0030] In order to facilitate the rotation and fixation of the fixed suction cup 1013 through the rotating installation component and facilitate installation and use, in the present embodiment, preferably, the rotating installation component includes a threaded column 1014 arranged at the middle position of the top of the fixed suction cup 1013, and an internal threaded hole 1012 is opened at the inner top of the groove 1011, and the fixed suction cup 1013 is rotationally fixedly connected with the inside of the groove 1011 through the threaded column 1014 and the internal threaded hole 1012, and the fixed suction cup 1013 is rotationally fixed by rotating the threaded column 1014 inside the internal threaded hole 1012, which is easy to fix, install, adsorb and place.

[0031] The working principle and use process of the utility model: before using the varistor performance test device, firstly, the threaded column 1014 is rotated and connected inside the internal threaded hole 1012 to fix the fixed suction cup 1013 inside the groove 1011, and the lower surface of the fixed suction cup 1013 is higher than the bottom surface of the base 101, so when the base 101 contacts the placement surface to fix the main body 100 of the lightning protection performance test device, the fixed suction cup 1013 contacts the placement surface to adsorb and fix the main body 100 of the lightning protection performance test device, which is convenient for the main body 100 of the lightning protection performance test device to be placed more stably, so that the test operation is not easy to move when the rotating disk 102 rotates the base 101 under force, and the test operation is more stable, which improves the fixity of the main body 100 of the lightning protection performance test device for the varistor lightning protection performance test operation;

[0032] Then, after the main body 100 of the lightning protection performance test device has accurately tested the varistor, the end of the varistor is detached from the inside of the test socket 107, and the test socket 107 is exposed to the outside. The elastic block 1072 is deformed to elastically slide the protective plate 1071. When the protective plate 1071 elastically slides, it drives the control slider 1073 to slide inside the control slide groove 1074, so that the two protective plates 1071 are elastically closed on the surface of the test socket 107 for dust protection. When the main body 100 of the lightning protection performance test device is not in use, it is not easy for dust to enter the inside through the test socket 107, which is convenient for dust protection. When measuring again, it is not easy to have poor contact, which improves the dust protection effect of the main body 100 of the lightning protection performance test device on the varistor after the lightning protection performance test, and the test is more accurate. When the varistor is inserted into the inside of the test socket 107, it is directly inserted into the surface of the arc groove to squeeze the protective plate 1071 into the inside for insertion and installation test operations.

[0033] Although the embodiments of the present invention have been shown and described (see the above detailed description for details), it will be understood by those skilled in the art that various changes, modifications, substitutions and variations may be made to these embodiments without departing from the principles and spirit of the present invention, and the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. A varistor performance test device, comprising a lightning protection performance test device body (100), the lightning protection performance test device body (100) comprising a base (101), a rotating disk (102), a fixed frame (103), a test frame (104) and a test jack (107), the rotating disk (102) being rotatably connected to the upper surface of the base (101) via a rotating shaft, the fixed frame (103) being arranged on the upper surface of the rotating disk (102), the test frame (104) being arranged at both ends of the upper surface of the fixed frame (103), the test jack (107) being opened inside the test frame (104), one end of the base (101) being clamped and installed with a wire (105), and the end of the wire (105) being provided with a lightning protection tester (106), characterized in that: The lightning protection performance testing device body (100) is also provided with: A dustproof mechanism, wherein the dustproof mechanism comprises a dustproof component and a control component, wherein the dustproof components are arranged at both ends of the test socket (107) and are located inside the test frame (104), and the control component is arranged on the side of the dustproof component; A fixed installation mechanism comprises an adsorption and fixing component and a rotational installation component, wherein the adsorption and fixing component is arranged on the lower surface of a base (101), and the rotational installation component is arranged at the end of the adsorption and fixing component.

2. A varistor performance testing device according to claim 1, characterized in that: The dustproof component comprises an adjustment slot (1075) opened at the end of the test socket (107) and located inside the wire (105), elastic blocks (1072) are arranged at both ends inside the adjustment slot (1075), and the ends of the elastic block (1072) are elastically connected to a protective plate (1071).

3. A varistor performance testing device according to claim 2, characterized in that: The two protection plates (1071) are symmetrically arranged, and arc grooves are provided on the end surfaces of the protection plates (1071).

4. A varistor performance testing device according to claim 2, characterized in that: The control assembly comprises two control sliding grooves (1074) provided on both sides of the adjustment groove (1075), and control sliding blocks (1073) are provided at both ends of the protection plate (1071).

5. A varistor performance testing device according to claim 4, characterized in that: The control slider (1073) is slidably connected to the inside of the control slide groove (1074), and the end of the protective plate (1071) and the inner side of the adjustment groove (1075) are controlled and slidably connected through the control slider (1073) and the control slide groove (1074).

6. A varistor performance testing device according to claim 1, characterized in that: The adsorption and fixing component comprises a groove (1011) opened at the edge and the middle position of the lower surface of the base (101), and a fixing suction cup (1013) is arranged inside the groove (1011).

7. A varistor performance testing device according to claim 6, characterized in that: The rotary installation assembly comprises a threaded column (1014) arranged at the middle position of the top end of the fixed suction cup (1013), an internal threaded hole (1012) is opened at the internal top end of the groove (1011), and the fixed suction cup (1013) and the interior of the groove (1011) are rotatably fixedly connected through the threaded column (1014) and the internal threaded hole (1012).

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