Testing device for testing voltage-sensitive voltage distribution

Abstract

The utility model provides a testing device for testing voltage-sensitive voltage distribution. The testing device comprises a voltage tester, a tray, a supporting rod, a connecting piece and a testing electrode tip, one end of the connecting piece is movably arranged on the supporting rod so as to drive the testing electrode tip at the other end of the connecting piece to move in the X direction, the Y direction and the Z direction, the testing electrode tip can make contact with different electrode points of a to-be-tested sample arranged on the tray, then a power source is connected, voltages on the different electrode points are measured, and voltage values are recorded. By analyzing the voltage distribution at different positions according to the voltage value data, the quality of the sample is judged to guide the production or a high-quality product is prepared by changing a formula or changing a process.

Description

TECHNICAL FIELD

[0001] The utility model relates to sensitive electronic device technical field, specifically, relate to a test device for testing voltage distribution of pressure sensitive. BACKGROUND

[0002] The core role of the pressure sensitive resistor is to limit the instantaneous overvoltage of the power line and signal transmission line into the equipment or system within the voltage range that can be borne, or to discharge the powerful lightning current into the ground, effectively resist the overvoltage phenomenon such as lightning and electrostatic discharge, so as to ensure the stable operation of electrical equipment and electronic system. The current test device can usually only test the overall voltage of the product, but the distribution of the voltage in the product, that is, the uniformity, will directly affect the performance of the product, so it is very important to test the voltage distribution of the product. SUMMARY

[0003] Therefore, the utility model discloses a connecting structure for composite hose to solve the above problems.

[0004] The utility model discloses the following scheme:

[0005] The application provides a test device for testing voltage distribution of pressure sensitive, including voltage tester, still including tray, support rod, connecting piece and test electrode head;

[0006] The tray has conductivity for bearing the sample to be measured, one end of the connecting piece is movably arranged on the support rod, the other end is connected with the test electrode head, the connecting piece can drive the test electrode head to move in space to contact the electrode on the surface of the sample to be measured, the support rod and / or the connecting piece are made of insulating material, and the tray and the test electrode head are electrically connected with the voltage tester.

[0007] Further, the tray and the support rod are arranged on the bottom disc, further, the tray rod with conductivity is arranged between the bottom disc and the tray, and the tray rod and one end of the test electrode head are provided with conductive connecting parts.

[0008] Further, the connecting piece is a ring-shaped hinge or a rod-shaped hinge.

[0009] Further, one end of the connecting piece is provided with a fixing part, which is rotatably arranged on the support rod and can move along the axis direction of the support rod.

[0010] Further, the tray and the test electrode head are made of pure copper, iron or aluminum.

[0011] Furthermore, the support rod and / or the connector are made of polytetrafluoroethylene or carbon fiber composite material.

[0012] Furthermore, the contact portion of the test electrode head is a cone, cuboid, or cube.

[0013] Furthermore, the test electrode head can be elastically extended and retracted so that it can contact the electrode on the surface of the sample under test with a certain pressure.

[0014] Furthermore, an elastic element is provided between the test electrode head and the connector.

[0015] By adopting the above technical solution, the present invention can achieve the following technical effects:

[0016] This invention provides a testing device for testing the distribution of varistor voltage, including a tray, a support rod, a connector, and a test electrode head. One end of the connector is movably mounted on the support rod, causing the test electrode head at the other end of the connector to move in the X, Y, and Z directions. This allows the test electrode head to contact different electrode points of the sample placed on the tray, thereby connecting a power source to measure the voltage at each electrode point and recording the voltage values. By analyzing the voltage distribution at different locations, the quality of the sample can be determined to guide production or to produce high-quality products by changing the formula or process. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of this utility model, the drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of this utility model and should not be regarded as a limitation of the scope. For those skilled in the art, other related drawings can be obtained from these drawings without creative effort.

[0018] Figure 1 This is a schematic diagram of a test device for testing the voltage distribution of a varistor according to an embodiment of the present invention;

[0019] Figure 2 This is a partially enlarged structural diagram of the test electrode head of a test device for testing the distribution of varistor voltage according to an embodiment of this utility model;

[0020] Figure 3 This is a schematic diagram of the structure of a testing device for testing the distribution of varistor voltage in an embodiment of the present invention when testing a sample under test;

[0021] Figure 4 This is a schematic diagram of the connector structure of a testing device for testing the voltage distribution of a varistor, according to an embodiment of this utility model. Figure 1 ;

[0022] Figure 5 is a connecting piece structure of a test device for testing voltage distribution of a pressure sensitive resistor Figure 2 ;

[0023] Icon: tray 1, support rod 2, connecting piece 3, test electrode head 4, bottom disc 5, supporting rod 6, fixing piece 7, height adjusting valve 8, first conductive connecting part 9, second conductive connecting part 10, contact part 11, elastic piece 12, sample to be tested 13, copper electrode 14. DETAILED DESCRIPTION

[0024] In order to make the purpose, technical scheme and advantages of the embodiments of the present application clearer, the technical scheme in the embodiments of the present application will be described clearly and completely below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are some embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the claimed present application, but only represents selected embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0025] EMBODIMENT

[0026] In conjunction with Figures 1 to 5 the drawings, the present embodiment provides a test device for testing voltage distribution of a pressure sensitive resistor, which comprises a voltage tester (not shown in the drawings), and further comprises a tray 1, a support rod 2, a connecting piece 3 and a test electrode head 4.

[0027] The tray 1 is conductive and used for bearing a sample to be tested 13. The connecting piece 3 is movably arranged at one end on the support rod 2 and connected with the test electrode head 4 at the other end. The connecting piece 3 can drive the test electrode head 4 to move in space to contact an electrode on the surface of the sample to be tested 13. The support rod 2 and / or the connecting piece 3 are made of insulating material. The tray 1 and the test electrode head 4 are electrically connected with the voltage tester.

[0028] The test electrode head 4 at the other end of the connecting piece 3 is driven to move in X, Y and Z directions to contact different electrode points of the sample 13 on the tray 1, and then the voltage at different electrode points is measured to record the voltage value, so that the voltage distribution at different positions is analyzed to determine the quality of the sample to guide production or to prepare high-quality products by changing the formula or process.

[0029] Specifically, in the embodiment, as shown in Figure 1 , a base plate 5 and a conductive supporting rod 6 are further included; the tray 1 and the supporting rod 2 are arranged on the base plate 5; the supporting rod 6 is arranged between the base plate 5 and the tray 1, and a first conductive connecting part 9 and a second conductive connecting part 10 are arranged on the supporting rod 6 and one end of the test electrode head 4 to facilitate connection with the voltage tester through wires.

[0030] In the embodiment, the supporting rod 2 is in a cylindrical shape; one end of the connecting piece 3 is provided with a ring-shaped fixing part 7 matched with the supporting rod; the fixing part 7 is sleeved on the supporting rod 2 and can move along the axis direction of the supporting rod 2 and rotate along the axis of the supporting rod 2, and is movably fixed by a height adjusting valve 8, which can be a bolt or other fastener.

[0031] In the embodiment, as shown in Figure 4 , the connecting piece 3 is a ring-shaped hinge, and the other end of the connecting piece 3 is connected with the test electrode head 4, so that the test electrode head 4 can be driven to move arbitrarily in space by the ring-shaped fixing part 7 and the ring-shaped connecting piece 3. Of course, in other embodiments, as shown in Figure 5 , the connecting piece 3 can also be a rod-shaped hinge, which can also drive the test electrode head 4 to move arbitrarily in the horizontal plane.

[0032] As shown in Figure 2 , in the embodiment, the test electrode head 4 can be elastically stretched and contracted to contact the electrode on the surface of the sample 13 with a certain pressure. Specifically, an elastic part 12 is arranged between the test electrode head 4 and the connecting piece 3, and the elastic part 12 is a spring which provides a downward pressure for the test electrode head 4 to ensure that the contact of the test electrode head 4 can effectively contact the electrode on the sample 13 during testing.

[0033] Preferably, the tray 1 and the test electrode head 4 are made of pure copper, iron or aluminum to better conduct the circuit. The supporting rod 2 and / or the connecting piece 3 are made of polytetrafluoroethylene or carbon fiber composite material.

[0034] Preferably, the contact part 11 of the test electrode head 4 is a cone, which can better contact and conduct with the electrode on the sample 13 to be tested. Of course, in other embodiments, the contact part 11 of the test electrode head 4 can also be a cuboid or a square.

[0035] The pressure sensitive resistor is a pressure sensitive resistor ceramic sheet with metal printed on two surfaces (A and B surfaces), wherein the A surface is printed with a full electrode, and the B surface is printed with an electrode surface in the shape of a circle, square or triangle with a diameter or side length of 1-5 mm. A and B refer to any two parallel surfaces, and the distance therebetween can be long or short. The printed metal electrode can be silver paste, copper paste or aluminum paste, etc. The pressure sensitive ceramic can be in the shape of a square, circle or triangle, and the size of the pressure sensitive resistor ceramic sheet can be 3-150 mm in diameter or side length and 1-50 mm in thickness.

[0036] As shown in Figure 3 The following describes the test steps of a pressure sensitive resistor, as an example. The pressure sensitive resistor has an outer size of 34*34*5 mm, and includes a copper full electrode printed on the A surface and a plurality of circular copper electrodes 14 with a diameter of 1.5 mm printed on the B surface. During the test, the sample 13 to be tested is placed in a copper-made circular tray 1 with a diameter of 40 mm, wherein the A surface faces downward, and the B surface faces upward. After the sample is placed, the height of the connecting member 3 of the annular hinge is adjusted, so that the contact part 11 of the test electrode head 4 with a tapered contact surface made of the copper electrode 14 with a diameter of 1.5 mm just contacts the circular copper electrode 14 on the B surface of the sample. Then, the power supply is turned on to test the pressure sensitive voltage of the sample, and the voltage value is recorded. After the test, the connecting member 3 of the annular hinge made of polytetrafluoroethylene is moved to adjust the position of the electrode head, so that the electrode head contacts the surface of the next circular copper electrode 14. The pressure sensitive voltage value is recorded. The above steps are repeated until the plurality of copper electrodes 14 on the B surface are tested. Finally, the voltage distribution at different positions of the sample is analyzed to determine the quality of the sample, so as to guide the production or to prepare high-quality products by changing the formula or by changing the process.

[0037] The preferred embodiments of the utility model are described above, and the protection scope of the utility model is not limited to the above-mentioned embodiments. Any technical solution falling within the concept of the utility model belongs to the protection scope of the utility model.

[0038] In the description of the utility model, it is understood that the directions or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise" and the like are the directions or positional relationships shown based on 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.

[0039] In addition, the terms "first" and "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.

[0040] In the utility model, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting", "fixing" and the like should be understood in a broad sense, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the communication or interaction relationship between two elements. For ordinary skilled in the art, the specific meaning of the above terms in the utility model can be understood according to the specific circumstances.

[0041] In the utility model, unless otherwise explicitly specified and limited, the "upper" or "lower" of the first feature to the second feature can include that the first and second features are in direct contact, or the first and second features are not in direct contact but are in contact through another feature between them. Moreover, the "upper", "upper" and "upper" of the first feature to the second feature include that the first feature is directly above and obliquely above the second feature, or only indicates that the horizontal height of the first feature is higher than that of the second feature. The "below", "below" and "below" of the first feature to the second feature include that the first feature is directly below and obliquely below the second feature, or only indicates that the horizontal height of the first feature is less than that of the second feature.

Claims

1. A test apparatus for testing a voltage distribution of a pressure sensitive voltage, comprising a voltage tester, characterized in that, The tray, the supporting rod, the connecting piece and the test electrode head are further included. The tray is electrically conductive and used for carrying a sample to be tested; one end of the connecting piece is movably arranged on the supporting rod, and the other end is connected with the test electrode head; the connecting piece can drive the test electrode head to move in space to contact the electrode on the surface of the sample to be tested; the supporting rod and / or the connecting piece is made of insulating material; and the tray and the test electrode head are electrically connected with the voltage tester.

2. The test device for testing a voltage distribution of a pressure sensitive voltage according to claim 1, characterized in that, A bottom disc is further included, and the tray and the supporting rod are arranged on the bottom disc.

3. The test device for testing a voltage distribution of a pressure sensitive voltage according to claim 2, characterized in that, A supporting rod with electrical conductivity is further included, which is arranged between the bottom disc and the tray; and an electrically conductive connecting part is arranged on the supporting rod and one end of the test electrode head.

4. The test device for testing a voltage distribution of a pressure sensitive voltage according to claim 1, characterized in that, The connecting piece is a ring-shaped hinge or a rod-shaped hinge.

5. The test device for testing a voltage distribution of a pressure sensitive voltage according to claim 4, characterized in that, One end of the connecting piece is provided with a fixing part, which is rotatably arranged on the supporting rod and can move along the axis direction of the supporting rod.

6. The test device for testing a voltage distribution of a pressure sensitive voltage according to claim 1, characterized in that, The tray and the test electrode head are made of pure copper, iron or aluminum.

7. The test apparatus for testing a voltage distribution of a pressure sensitive voltage according to claim 1, characterized by, The supporting rod and / or the connecting piece is made of polytetrafluoroethylene or carbon fiber composite material.

8. The test apparatus for testing a voltage distribution of a pressure sensitive voltage according to claim 1, characterized by, The contact part of the test electrode head is a cone, a cuboid or a square.

9. The test device for testing a voltage distribution of a pressure sensitive voltage according to any one of claims 1 to 8, characterized in that The test electrode head can be elastically stretched and contracted so that it can contact the electrode on the surface of the sample to be tested with a certain pressure.

10. The test device for testing a voltage distribution of a pressure sensitive voltage according to claim 9, characterized in that, An elastic part is arranged between the test electrode head and the connecting piece.

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