High-voltage network filter electrical performance test clamp

Abstract

A high-voltage network filter electrical performance test clamp comprises a clamp body, a lead fixing groove, a selection knob, a connection interface A and a connection interface B. The lead fixing groove is arranged at one end of the upper surface of the clamp body, and the connection interface A and the connection interface B are arranged at the other end of the upper surface of the clamp body side by side. The selection knob is arranged on the side edge of the side, away from the lead fixing groove, of the clamp body, a conductive connection structure is arranged in the clamp body, and the conductive connection structure is connected with the lead fixing groove, the selection knob, the connection interface A and the connection interface B. The conductive path is arranged in the clamp, the selection knob is rotated to measure the electrical performance of the filter lead at the connection interface, the assembly and disassembly are convenient, the conductive path is accurate, the parasitic capacitance and inductance are small, the measurement result is more accurate, and the measurement environment is safer.

Description

Technical Field

[0001] The utility model belongs to the field of ceramic filter capacitors, in particular to a high-voltage network filter electrical performance test fixture. Background Art

[0002] In power electronic equipment and high-voltage applications, high-voltage network ceramic filters are crucial components, and their performance and reliability directly affect the stability and safety of the system.

[0003] High-voltage network filters usually have multiple leads. In actual measurement, they face the following difficulties:

[0004] 1. Inconvenient operation: The traditional measurement method requires manually connecting the filter leads to the measurement equipment, which is not only time-consuming and labor-intensive, but also prone to connection errors. Especially when multiple leads need to be measured simultaneously, the complexity and inconvenience of the operation increase significantly.

[0005] 2. Inaccurate measurements: Due to the large lead spacing, it is often difficult to ensure stable lead connection when using standard measuring equipment for electrical performance testing, resulting in inaccurate measurement results. This instability may also introduce parasitic capacitance and inductance, further affecting measurement accuracy.

[0006] 3. Safety issues: During high-voltage testing, multiple leads of the capacitor need to withstand several thousand volts of high voltage at the same time. If there is no reliable fixture connection, arc discharge and other dangers may be caused due to poor connection or accidental contact, which may cause equipment damage or personal injury in serious cases.

[0007] Therefore, there is an urgent need for a fixture device that can effectively solve the multi-lead connection and measurement problems of high-voltage network filters. The fixture device should not only simplify the measurement process, improve the efficiency and accuracy of the measurement, but also ensure the operational safety under high-voltage environments. Utility Model Content

[0008] In view of the problems existing in the prior art, the utility model provides a high-voltage network filter electrical performance test fixture.

[0009] The utility model is implemented as follows: a high-voltage network filter electrical performance test fixture includes a fixture body, a lead fixing groove, a selection knob and a connection interface A and a connection interface B, the lead fixing groove is arranged at one end of the upper surface of the fixture body, the connection interface A and the connection interface B are arranged side by side at the other end of the upper surface of the fixture body, the selection knob is arranged on the side edge of the fixture body away from the lead fixing groove, and a conductive connection structure is provided inside the fixture body, and the conductive connection structure connects the lead fixing groove, the selection knob, the connection interface A and the connection interface B.

[0010] Furthermore, a card slot is provided on the upper surface of the clamp body, and the clamp body and the lead fixing slot are plug-in connected via the card slot.

[0011] Furthermore, the conductive connection structure is a copper lead, and the copper lead is arranged inside the clamp body.

[0012] Furthermore, the lead wire fixing groove is provided with a lead wire hole, and the lead wire of the filter is completely inserted into the lead wire fixing groove through the lead wire hole.

[0013] Furthermore, the lead hole of the lead fixing groove is a copper contact slot, and the outer shell of the lead fixing groove is high-voltage resistant insulating rubber.

[0014] Furthermore, the connection interface A and the connection interface B are two identical copper pillars, the lower ends of the copper pillars are in contact with the copper leads, and the upper ends of the copper pillars are higher than the upper surface of the fixture body.

[0015] Furthermore, a protective device is provided on both the connection interface A and the connection interface B, and the protective device is provided at the intersection of the copper column and the upper surface of the fixture body.

[0016] Furthermore, the protection device is an annular concave wire trough.

[0017] Furthermore, a contact is provided inside the selection knob, and the contact is in contact with the copper lead of the conductive connection structure.

[0018] Furthermore, the connection interface A, the connection interface B and the selection knob are connected via a conductive connection structure, and the lead fixing groove and the selection knob are connected via a conductive connection structure.

[0019] In summary, the beneficial effects of the present invention are:

[0020] (1) The present invention avoids manually connecting the filter leads to the measuring device by arranging a conductive connection structure connecting the lead fixing groove, the connection interface and the selection knob inside the fixture body. The measuring personnel can quickly and easily insert the high-voltage network filter into the lead fixing groove of the fixture and fix it. The lead will not loosen or fall off. By adjusting the knob, measurements can be made between different leads, which simplifies the measurement process and improves operating efficiency.

[0021] (2) The present invention adopts a precise conductive connection structure, which makes the conductive path more accurate, ensures low impedance and high reliability of the signal, further reduces parasitic capacitance and inductance, and improves measurement accuracy.

[0022] (3) The utility model provides an annular concave wire groove as an anti-slip structure on the copper column connection interface, and adopts high-voltage resistant insulating materials for the lead fixing groove and the fixture body shell to prevent arc discharge and the risk of accidental falling off, thereby ensuring the safety of operators and equipment and ensuring safe use in high-voltage environments.

[0023] (4) The utility model provides a card slot plug-in connection between the fixture body and the lead fixing slot, which can quickly connect and disassemble the fixture and the equipment, greatly shortening the preparation and testing time. The fixture has a simple structure, low manufacturing cost, and long service life, which reduces the maintenance and replacement costs of the measuring equipment, has high economic benefits, improves the efficiency and accuracy of measurement, helps to shorten the product testing cycle, speed up the product listing time, and enhance market competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the following briefly introduces the drawings required for describing the embodiments.

[0025] Figure 1 It is a schematic diagram of the overall structure of the utility model;

[0026] Figure 2 It is a top view of the overall structure of the utility model;

[0027] Figure 3 It is a left view of the overall structure of the utility model;

[0028] Figure 4 It is an exploded view of the overall structure of the utility model;

[0029] Explanation of the accompanying figures: 1. Clamp body; 2. Lead fixing groove; 3. Lead hole; 4. Connection interface A; 5. Selection knob; 6. Protection device; 7. Wire connection structure; 8. Connection interface B. DETAILED DESCRIPTION

[0030] The following will be combined with the drawings in the embodiments of the present invention to clearly and completely describe the technical solutions in the embodiments of the present invention. Obviously, the embodiments described are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0031] like Figures 1-4As shown, an embodiment of the utility model provides a high-voltage network filter electrical performance test fixture, including a fixture body 1, a lead fixing slot 2, a selection knob 5, and a connection interface A4 and a connection interface B 8. The lead fixing slot 2 is arranged at one end of the upper surface of the fixture body 1, and the connection interface A4 and the connection interface B 8 are arranged side by side at the other end of the upper surface of the fixture body 1. The selection knob 5 is arranged on the side edge of the fixture body 1 away from the lead fixing slot 2. A conductive connection structure 7 is provided inside the fixture body 1. The conductive connection structure 7 connects the lead fixing slot 2, the selection knob 5, the connection interface A 4 and the connection interface B 8. By arranging the conductive connection structure 7 inside the fixture body 1 to connect the lead fixing slot 2, the connection interface A4, the connection interface B 8 and the selection knob 5, the measurement personnel can quickly and easily insert the high-voltage network filter into the lead fixing slot of the fixture and fix it, the lead will not loosen or fall off, and the measurement between different leads can be performed by adjusting the knob.

[0032] In this embodiment, a card slot is provided on the upper surface of the clamp body 1, and the clamp body 1 and the lead fixing groove 2 are connected in a plug-in manner through the card slot. The plug-in connection makes the installation and disassembly of the clamp body 1 and the lead fixing groove simple and convenient, and easy to store.

[0033] In this embodiment, the conductive connection structure 7 is a copper lead, which is arranged inside the fixture body 1. This arrangement makes the conductive structure more precise, because the copper lead is arranged inside the fixture body 1 and will not be exposed to the air, which can prevent the copper lead from oxidizing and other external factors that cause the copper lead to have poor conductivity. In addition, because the copper lead is arranged inside the fixture body, there are fewer external interference factors during the conductive process, which can ensure low impedance and high reliability of the signal and reduce some parasitic capacitance and inductance.

[0034] In this embodiment, a lead hole 3 is provided on the lead fixing groove 2, and the lead of the filter is completely inserted into the lead fixing groove 2 through the lead hole 3. The size and number of the lead holes match the size and number of the filter leads. The filter leads can all be inserted into the lead fixing groove 2 to prevent arcing between the leads. The plug-in connection method facilitates the removal of the filter, which can improve measurement efficiency. There are 9 filter leads, the first one on the left is a common lead, and the remaining 8 are functional leads.

[0035] In this embodiment, the lead hole 3 of the lead fixing slot 2 is a copper contact card slot, and the outer shell of the lead fixing slot 2 is high-voltage resistant insulating rubber. The use of the copper contact card slot can improve the internal conductive effect, and the use of the high-voltage resistant insulating rubber can improve the safety of the measurement environment and ensure the safety of the tester.

[0036] In this embodiment, the connection interface A4 and the connection interface B8 are two identical copper pillars, the lower ends of the copper pillars are in contact with the copper leads, and the upper ends of the copper pillars are higher than the upper surface of the fixture body 1. Using copper pillars as the connection interface A4 and the connection interface B8 can enhance the output signal and facilitate the measuring instrument to measure the interface signal.

[0037] In this embodiment, a protective device 6 is provided on both the connection interface A4 and the connection interface B8. The protective device 6 is provided at the intersection of the copper column and the upper surface of the fixture body 1, which can improve the safety and convenience of the measurement process.

[0038] In this embodiment, the protection device 6 is an annular concave wire groove, which can prevent the connection interface and the measuring instrument from sliding up and down when connected, thereby ensuring the safety of the test environment and improving the stability of the measurement signal.

[0039] In this embodiment, contacts are provided inside the selection knob 5, and the contacts are in contact with the copper leads of the conductive connection structure 7. The copper leads of the conductive connection structure 7 and the 9 leads of the inserted filter form 9 different electrodes. The middle section of the common electrode has an intersection with the copper column of the connection interface A4, and the remaining 8 functional electrodes directly correspond to the other 8 contacts on the knob. When the selection knob 5 is rotated, a group of functional electrodes will contact the knob contacts. At this time, the filter leads and the connection interface 4 are connected. The measuring instrument rotates the selection knob 5 at the connection interface A4 and the connection interface B8 to make different contacts contact different electrodes, connecting the conductive circuits of different leads, thereby realizing the selection function of the selection knob 5 and measuring different leads.

[0040] In this embodiment, the connection interface A4, the connection interface B8 and the selection knob 5 are connected through a conductive connection structure 7, and the lead fixing groove 2 and the selection knob 5 are connected through a conductive connection structure 7. The conductive connection structure between the connection interface A4, the connection interface B8 and the selection knob 5 is arranged below the conductive connection structure between the lead fixing groove 2 and the selection knob 5, so that their respective electrical signal transmissions do not affect each other. The conductive connection structure 7 is used to connect the various components inside the fixture body to achieve the connectivity of the input and output signals during the measurement process, thereby achieving the purpose of measurement. This connection method realizes the process in which the electrical performance signal is transmitted from the filter pin to the copper lead of the conductive connection mechanism 7, to the selection knob 5, through the selection knob 5 to the copper pillars of the connection interface A4 and the connection interface B8, and finally output to the detection end of the measuring instrument through the copper pillars.

[0041] During operation, the 9 leads of the filter are inserted into the lead holes 3 corresponding to the lead fixing slots 2, and the common lead is inserted into the first lead hole on the left side of the fixture. After the 9 leads of the filter are inserted into the lead fixing slots, they contact the copper leads of the conductive connection mechanism 7 to form 9 different electrodes. The common lead is the common electrode, and the remaining 8 electrodes correspond to the remaining 8 leads of the filter in turn. The common electrode is connected to the copper column of the connection interface A 4 through the selection knob 5 and the copper lead. The remaining 8 functional electrodes correspond to the 8 different contacts set inside the selection knob 5. When the selection knob 5 is rotated, one group of the 8 groups of contacts and electrodes will be in contact, and will be connected to the copper column of another connection interface 4 on the fixture through the selection knob 5 and the copper lead. The measuring instrument can measure the electrical performance data of the filter lead connected at this time through the copper column of the connection interface A4 and the connection interface B 8. When the selection knob 5 is rotated to the next contact, the electrical performance of the next filter lead can be measured.

[0042] The fixture body 1 and the lead fixing slot 2 adopt a card slot plug-in connection, which makes the collection of the entire fixture more convenient. The filter and the lead fixing slot are also connected in a plug-in manner, so that the measurement personnel can quickly perform measurements and replace the filter to be measured, thereby improving the measurement efficiency. In addition to the conductive circuit, the rest of the parts are made of high-voltage resistant materials, which improves the safety of the measurement.

[0043] Because the measurement signal is input and output inside the fixture, there are fewer external interference factors, the measurement results are more accurate, the practical life of the measuring instrument is longer, and the replacement frequency of the fixture is reduced, thereby reducing the cost of use. In addition, the test fixture has a simple structure, low manufacturing cost, and high market competitiveness.

[0044] The above description is only a preferred embodiment of the present invention and does not limit the patent scope of the present invention. All equivalent structural transformations made based on the concept of the present invention and the contents of the present invention description and drawings, or direct / indirect application in other related technical fields are included in the patent protection scope of the present invention.

Claims

1. A high-voltage network filter electrical performance test fixture, characterized by: The invention comprises a clamp body (1), a lead fixing groove (2), a selection knob (5), a connection interface A (4), and a connection interface B (8); the lead fixing groove (2) is arranged at one end of the upper surface of the clamp body (1); the connection interface A (4) and the connection interface B (8) are arranged side by side at the other end of the upper surface of the clamp body (1); the selection knob (5) is arranged on the side edge of the clamp body (1) away from the lead fixing groove (2); a conductive connection structure (7) is provided inside the clamp body (1); the conductive connection structure (7) connects the lead fixing groove (2), the selection knob (5), the connection interface A (4), and the connection interface B (8).

2. The high-voltage network filter electrical performance test fixture according to claim 1, characterized in that: The upper surface of the clamp body (1) is provided with a card slot, and the clamp body (1) and the lead fixing slot (2) are plug-in connected via the card slot.

3. The high-voltage network filter electrical performance test fixture according to claim 1, characterized in that: The conductive connection structure (7) is a copper lead, and the copper lead is arranged inside the clamp body (1).

4. The high-voltage network filter electrical performance test fixture according to claim 1, characterized in that: The lead wire fixing groove (2) is provided with a lead wire hole (3), and the lead wire of the filter is completely inserted into the lead wire fixing groove (2) through the lead wire hole (3).

5. The high-voltage network filter electrical performance test fixture according to claim 4, characterized in that: The lead hole (3) of the lead fixing groove (2) is a copper contact card groove, and the outer shell of the lead fixing groove (2) is made of high-voltage resistant insulating rubber.

6. The high-voltage network filter electrical performance test fixture according to claim 1, characterized in that: The connection interface A (4) and the connection interface B (8) are two identical copper pillars, the lower ends of the copper pillars are in contact with the copper leads, and the upper ends of the copper pillars are higher than the upper surface of the clamp body (1).

7. The high-voltage network filter electrical performance test fixture according to claim 6, characterized in that: The connection interface A (4) and the connection interface B (8) are both provided with a protection device (6), and the protection device (6) is provided at the portion where the copper column and the upper surface of the clamp body (1) intersect.

8. The high-voltage network filter electrical performance test fixture according to claim 7, characterized in that: The protection device (6) is an annular concave wire groove.

9. The high-voltage network filter electrical performance test fixture according to claim 1, characterized in that: A contact is provided inside the selection knob (5), and the contact is in contact with the copper lead of the conductive connection structure (7).

10. The high-voltage network filter electrical performance test fixture according to claim 1, characterized in that: The connection interface A (4), the connection interface B (8) and the selection knob (5) are connected via a conductive connection structure (7), and the lead fixing groove (2) and the selection knob (5) are connected via a conductive connection structure (7).

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