Tool clamp for testing electrical performance of pin type alternating current filter

Abstract

The utility model discloses a work fixture for testing the electrical performance of a pin type AC filter, which comprises an insulating plate and a circuit board, the circuit board is fixedly arranged on the insulating plate, a plurality of groups of filter connecting circuits are welded on the circuit board, and the plurality of groups of filter connecting circuits are connected in parallel. Pin connectors are fixedly arranged at the input ends of the multiple sets of filter connecting circuits, the pin connectors are used for being vertically connected with pins of a pin type alternating current filter in an inserted mode, and the output ends of the multiple sets of filter connecting circuits are electrically connected with testing equipment through leads. According to the tool clamp for testing the electrical performance of the pin-type AC filter, the pin of the pin-type AC filter can be vertically inserted into the pin connector, the pin cannot be damaged, a plurality of pin-type AC filters can be measured at the same time, the pin can be protected, and the testing efficiency can be improved.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of AC filters, in particular to a tool clamp for electric performance test of a pin type AC filter. BACKGROUND

[0002] The pin type AC filter is a kind of power electronic device, which is usually used in electrical systems to reduce high-frequency noise and interference signals in power supply, thereby improving the performance and stability of electrical equipment. Its basic function is to filter electromagnetic interference (EMI) and radio frequency interference (RFI) in AC power supply, so as to avoid the influence of these interference signals on the normal operation of the equipment, especially in sensitive electronic equipment or high-precision instruments.

[0003] The pin type AC filter needs to be tested for electric performance before leaving the factory, including voltage resistance test and insulation resistance test. In order to ensure the accuracy of electric performance test, it is usually necessary to use a tool clamp to connect the device with the pin type AC filter. At present, the tool clamp used in testing is mostly crocodile clamp, which needs to clamp the pin of the pin type AC filter product. In this process, the pin of the product may be damaged, such as wear and tear, which cannot be repaired. At the same time, the use of crocodile clamp can only test one product at a time, which consumes a lot of time. CONTENT OF THE INVENTION

[0004] Therefore, the application provides a tool clamp for electric performance test of a pin type AC filter to solve the problems of existing technology that the test tool clamp of the pin type AC filter is easy to cause damage to the pin and can only test one product at a time.

[0005] In order to achieve the above purpose, the application provides the following technical solutions:

[0006] A tool clamp for electric performance test of a pin type AC filter, comprising an insulating plate and a circuit board, the circuit board is fixedly arranged on the upper surface of the insulating plate, a plurality of groups of filter connection circuits are welded on the circuit board, the plurality of groups of filter connection circuits are connected in parallel, an insertion connector is fixedly arranged at the input end of each group of filter connection circuits, the insertion connector is used for vertical insertion with the pin of the pin type AC filter, and the output end of each group of filter connection circuits is electrically connected with a test device through a lead wire.

[0007] Preferably, the insertion connector comprises a plurality of hollow cylinders.

[0008] Preferably, the inside of each hollow cylinder is a reverse conical structure, and the bottom of the reverse conical structure is closely combined with the pin of the AC filter.

[0009] As preferred, the arrangement of the plurality of hollow cylinders is the same as the arrangement of the pins of the AC filter.

[0010] As preferred, the pin connector comprises five hollow cylinders.

[0011] As preferred, the output ends of the plurality of filter connection circuits comprise a live wire output end, a zero wire output end and a ground wire output end.

[0012] As preferred, the pin connector is a metallized hole.

[0013] Compared with the prior art, the present application has at least the following beneficial effects:

[0014] The present application provides a tool clamp for electrical performance test of pin type AC filter, comprising an insulating plate and a circuit board, the circuit board is fixedly arranged on the upper surface of the insulating plate, a plurality of filter connection circuits are welded on the circuit board, the plurality of filter connection circuits are connected in parallel, a pin connector is fixedly arranged at the input end of each filter connection circuit, the pin connector is used for vertical insertion with the pins of the pin type AC filter, and the output ends of the plurality of filter connection circuits are electrically connected with a test device through lead wires. The tool clamp for electrical performance test of pin type AC filter provided by the present application can vertically insert the pins of the pin type AC filter into the pin connector without damaging the pins, and can simultaneously measure a plurality of pin type AC filters, which can protect the pins and improve the test efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0015] In order to more intuitively illustrate the prior art and the present application, the following exemplary drawings are given. It should be understood that the specific shapes, structures shown in the drawings should not be regarded as limiting conditions in the implementation of the present application; for example, based on the technical concept disclosed in the present application and the exemplary drawings, those skilled in the art can easily make routine adjustments or further optimization on the increase / decrease / ownership division of certain units (components), specific shape, positional relationship, connection mode, size ratio relationship, etc.

[0016] Figure 1 A structural schematic diagram of the tool clamp for electrical performance test of pin type AC filter provided by the present application is shown in the following figure;

[0017] Figure 2 An exploded schematic diagram of the tool clamp for electrical performance test of pin type AC filter provided by the present application is shown in the following figure;

[0018] Figure 3 A principle diagram of the plurality of filter connection circuits of the tool clamp for electrical performance test of pin type AC filter provided by the present application is shown in the following figure.

[0019] Explanation of reference signs:

[0020] 1, circuit board; 101, pin connector; 102, live wire output end; 103, ground wire output end; 104, neutral wire output end; 2, insulating plate. DETAILED DESCRIPTION

[0021] The application will be further described in detail below with reference to specific embodiments in conjunction with the accompanying drawings.

[0022] In the description of the present application: unless otherwise specified, the meaning of "a plurality of" is two or more. The terms "first", "second", "third" and the like in the present application are intended to distinguish the objects referred to, and do not have a special meaning in the technical connotation aspect (for example, it should not be understood as emphasizing the importance or order, etc.). The expressions "include", "contain", "have" and the like also mean "not limited to" (some units, components, materials, steps, etc.).

[0023] The terms such as "upper", "lower", "left", "right", "intermediate" and the like referred to in the present application are generally indications of the relative positional relationship for the purpose of intuitive understanding with reference to the drawings, and are not absolute limitations on the positional relationship in the actual product.

[0024] Please refer to Figure 1 , Figure 2 and Figure 3 , the present application provides a kind of for pin type alternating current filter electrical performance test tool clamp, including circuit board 1 and insulating plate 2, circuit board 1 is fixedly arranged on the upper surface of insulating plate 2, a plurality of groups of filter connection circuit are welded on circuit board 1, a plurality of groups of filter connection circuit are connected in parallel, the input end of a plurality of groups of filter connection circuit is fixedly provided with pin connector 101, pin connector 101 is used to be vertically inserted with the pin of pin type alternating current filter, and the output end of a plurality of groups of filter connection circuit is electrically connected with test equipment by lead.

[0025] Specifically, pin connector 101 is composed of a plurality of hollow cylinders, the inside of each hollow cylinder is a reverse tapered structure, the design of reverse tapered structure can make pin connector 101 and the pin of pin type alternating current filter more closely contact, to ensure good electrical connection. More specifically, the bottom of reverse tapered structure is highly consistent with the shape of pin type alternating current filter pin, so as to realize stable contact and better signal transmission.

[0026] The arrangement mode of a plurality of hollow cylinders is consistent with the arrangement mode of pin type alternating current filter pin, so as to ensure that pin connector 101 can accurately dock each pin of pin type alternating current filter. In this way, not only the conductivity of pin connector 101 is improved, but also signal interference is effectively reduced, and the overall working efficiency of pin type alternating current filter is improved. In addition, the structure of pin connector 101 simplifies the installation process, improves the reliability and stability of the equipment.

[0027] Specifically, the pin connector 101 includes five hollow cylinders corresponding to the five pins of the pin-type AC filter. The inner diameter and shape of each hollow cylinder match the pins of the pin-type AC filter, ensuring good mechanical and electrical contact. The pin connector 101 not only effectively connects the pin-type AC filter and the circuit, but also ensures the stability and reliability of the connection. In addition, the layout of the five cylinders is completely aligned with the pin arrangement of the pin-type AC filter, making the installation process more convenient and fast, reducing the occurrence of errors, and improving the overall stability and service life of the tooling fixture.

[0028] Specifically, the output end of the multi-group filter connection circuit includes three main interfaces: the live wire output end 102, the ground wire output end 103, and the zero wire output end 104. The live wire output end 102 is responsible for transmitting the live current signal, the ground wire output end 103 provides the ground loop of the electrical equipment, ensuring safety and stability, and the zero wire output end 104 is used to return the load current signal to the power supply. Each output end is optimally designed to ensure the stability of signal transmission and filtering effect, to reduce electromagnetic interference and improve operating efficiency. Through this clear port design, power signal transmission can be more accurate and efficient, thereby enhancing its reliability and safety.

[0029] The pin connector 101 is a metalized hole, which enables efficient electrical connection between the inside and outside of the pin connector 101. The metalized hole is formed by coating a layer of metal material, such as copper or nickel, on the hole wall of the pin connector 101, forming a conductive path. This structure not only improves the conductivity of the pin connector 101, but also effectively reduces contact resistance and signal loss, ensuring stable transmission of current. The application of metalized holes enables the pin connector 101 to maintain good electrical performance when subjected to high-frequency signals and high-current loads, while enhancing its mechanical strength and providing higher reliability. Through this optimized design, the pin connector 101 can meet the requirements of various complex electrical systems, ensuring long-term stable operation.

[0030] The tooling fixture for electrical performance testing of the pin-type AC filter provided in the present application, when testing, first fixes the circuit board 1 on the insulating plate 2, and cannot appear the phenomenon of skewing, loosening, according to the string mark on the circuit board 1, connects with the positive and negative poles of the test power supply, adjusts the test instrument measurement value according to the test requirements of the pin-type AC filter product, at the same time, can insert multiple pin-type AC filter pins vertically into the tooling fixture according to the corresponding position, and starts the test instrument, thereby performing electrical performance testing on the pin-type AC filter product.

[0031] It should be noted that when testing the pin-type AC filter, only the pin-type AC filter needs to be connected with the test power supply, and the electrical performance of the pin-type AC filter can be judged by the condition of the test power supply.

[0032] Specifically, when testing the pin-type AC filter, it is connected with the test power supply, which actually puts the pin-type filter in a working state, and observes its influence on the current signal. The test power supply is usually a power supply with known characteristics and stable output. Without the filter, the signal output by the power supply will have certain noise and interference, and when the pin-type AC filter is connected, it will filter the current signal and reduce noise and interference.

[0033] Therefore, the core of the test process is to evaluate the electrical performance of the filter by monitoring the changes in the power supply output signal. For example, if the pin-type AC filter can effectively filter out noise, the signal waveform output by the power supply will become more stable, and the high-frequency interference component will be significantly reduced. The tester can judge the working effect and performance of the filter by observing the stability of the power supply output voltage, the purity of the waveform, the noise level, etc.

[0034] In this test process, the effect of the filter can be judged by measuring the waveform of the power supply output (such as using an oscilloscope). For example, if the frequency component of the power supply output signal matches the design frequency of the filter and the interference is significantly reduced, it indicates that the electrical performance of the filter is good. If the signal waveform is unstable and has a large noise component, it indicates that the performance of the filter may be insufficient and unable to effectively filter out interference.

[0035] The tool fixture for testing the electrical performance of the pin-type AC filter provided in the present application is specifically designed for pin-type AC filters as the main test object. The test tool fixture can test the voltage resistance and insulation resistance of the pin-type AC filter. The pins of the pin-type AC filter can be vertically inserted into the pin connector 101 without damaging the pins, and multiple pin-type AC filters can be measured at the same time, which can protect the pins and improve the test efficiency.

[0036] The technical features of the above embodiments can be combined in any manner (as long as the combination of the technical features does not contradict). In order to make the description concise, not all possible combinations of the technical features in the above embodiments are described. These embodiments not explicitly written should be considered as within the scope of the present disclosure.

Claims

1. A tooling fixture for pin-type AC filter electrical performance testing, characterized by, The utility model relates to an AC filter connection circuit, including insulating plate and circuit board, the circuit board fixedly arranged on the insulating plate, the circuit board is welded with multiple sets of filter connection circuit, multiple sets of filter connection circuit are connected in parallel, the input of multiple sets of filter connection circuit all fixedly arranged with pin connector, the pin connector is used for with the pin of pin type AC filter vertical plug, and the output of multiple sets of filter connection circuit is connected with test equipment through lead wire.

2. The tooling fixture for pin-type AC filter electrical performance testing of claim 1, wherein, The pin connector includes a plurality of hollow cylinders.

3. The tooling fixture for pin-type AC filter electrical performance testing of claim 2, wherein, The interiors of the plurality of hollow cylinders are inverted conical structures.

4. The tooling fixture for AC pin-type filter electrical performance test according to claim 2, characterized in that, The inverted conical structures are tightly fitted with the pins of the AC filter.

5. The test fixture for AC pin-type filter electrical performance test according to claim 2, wherein, The arrangement of the plurality of hollow cylinders is the same as the arrangement of the pins of the AC filter.

6. The test fixture for pin-type AC filter electrical performance testing of claim 1, wherein, The pin connector includes five hollow cylinders.

7. The test fixture for pin-type AC filter electrical performance testing of claim 1, wherein, The outputs of the plurality of sets of filter connection circuits include a hot line output, a zero line output, and a ground line output. The pin connector is a metallized hole.

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