Clamping fixture for performance testing of surface-mount organic film capacitors
By designing a clamping tool for surface-mount organic film capacitors, including insulating substrates, metal pins and elastic metal contact sheets, the problem of low efficiency and manpower dependence on traditional testing methods is solved, and efficient and reliable performance testing is achieved.
Patent Information
- Application Number
- CN202420978261.X
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-05-08
- Publication Date
- 2025-04-01
- Estimated Expiration
- 2034-05-08
AI Technical Summary
The traditional wiring method used in the performance test of surface-mount organic film capacitors is low efficiency and accuracy depends on the point pressure contact of the tester, and long-term testing can easily lead to reduced test accuracy and electrical loss.
A clamping tool including an insulating substrate, metal pins and elastic metal contact sheets is designed. Through the design of the insulating substrate and metal pins, combined with the reliable contact of the elastic metal contact sheets, the efficient performance test of surface-mounted organic film capacitors is achieved.
Through this clamping tooling, testing accuracy and efficiency can be improved, labor costs can be reduced, the stability and reliability of conductive performance can be ensured, and the fluctuations in testing accuracy can be reduced.
Smart Images
Figure CN222704626U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to a clamping tool for capacitor performance testing, in particular to a clamping tool for surface-mounted organic film capacitor performance testing. Background Art
[0002] Surface mount organic film capacitors are organic film capacitors with surface mount lead sheets as lead pins. Figure 1 As shown, it includes a housing 3, a cover plate 1 and a surface-mount lead sheet 2. The capacitor core (not visible in the figure) is placed in the housing and encapsulated by epoxy resin. The two poles of the capacitor core are respectively conductively connected to the two surface-mount lead sheets 2. The two surface-mount lead sheets 2 are respectively installed on the opposite sides of the housing 3 and are simultaneously located outside the opposite sides of the cover plate 1. When in use, the two surface-mount lead sheets 2 are respectively welded to the electrodes on the circuit board, which has the advantages of large contact area and space saving compared to the commonly used pin-type pins.
[0003] The above-mentioned surface-mounted organic film capacitor needs to be performance tested before leaving the factory. Before the test, the two surface-mounted lead-out pieces 2 need to be connected to the two terminal ends of a test instrument such as a digital bridge tester. Since the surface-mounted organic film capacitor does not have traditional pin-type pins for clamping with wiring clips, the traditional wiring method is that one person holds the two wiring clips of the test instrument and respectively presses and contacts the two surface-mounted lead-out pieces 2, while another person records data on the side. This traditional testing method not only has low testing efficiency and high time and labor costs, but also the test accuracy is related to the point pressure contact of the tester. During a long test process, the tester is prone to fatigue, resulting in poor point pressure contact, resulting in reduced test accuracy. In addition, there is also the problem of long wiring clips causing electrical loss and reducing test accuracy. Utility Model Content
[0004] The purpose of the utility model is to solve the above problems and provide a clamping tool for surface-mounted organic film capacitor performance testing that can improve test accuracy and efficiency.
[0005] The utility model achieves the above-mentioned purpose through the following technical solutions:
[0006] A clamping tool for performance testing of surface-mounted organic film capacitors, comprising an insulating substrate and two metal pins mounted on the insulating substrate, and also comprising an elastic metal contact sheet, one end of the two elastic metal contact sheets being mounted on the insulating substrate and respectively conductively connected to the two metal pins, an insulating support seat being provided on the insulating substrate between the two elastic metal contact sheets, and the other ends of the two elastic metal contact sheets having an elastic force to approach each other.
[0007] Preferably, in order to facilitate processing and assembly and make the elastic metal contact sheet have reliable elasticity to improve the conductive performance between it and the surface-mounted lead-out sheet of the surface-mounted organic film capacitor, the plane where the insulating substrate is located is taken as the horizontal plane, and the elastic metal contact sheet includes a contact sheet horizontal straight line segment, a contact sheet oblique straight line segment and a contact sheet vertical straight line segment connected in sequence, and the angle between the contact sheet horizontal straight line segment and the contact sheet oblique straight line segment, and the angle between the contact sheet oblique straight line segment and the contact sheet vertical straight line segment are both obtuse angles, and the two contact sheet horizontal straight line segments are respectively placed on the upper surface of the insulating substrate and on both sides of the insulating support seat, and the upper sides of the insulating support seat are respectively close to two The contact piece has a vertical straight section, and a vertical contact piece through hole is provided on the horizontal straight section of the contact piece. The two sheet-shaped and vertical metal pins respectively pass through the two corresponding vertical through holes on the insulating substrate. The upper end of the metal pin is bent 90° to form a pin horizontal connecting section. The pin horizontal connecting section is provided with a vertical pin through hole. The insulating substrate is provided with two vertical substrate screw holes or substrate through holes. The screw rods of the two connecting bolts respectively pass through the two contact piece through holes and the two pin through holes in sequence and are connected to the two substrate screw holes, or the screw rods of the two connecting bolts respectively pass through the two contact piece through holes, the two pin through holes, and the two substrate through holes in sequence and are connected to the two nuts.
[0008] Preferably, for ease of application, the angle between the transverse straight line segment of the contact piece and the oblique straight line segment of the contact piece is 110°, and the angle between the oblique straight line segment of the contact piece and the vertical straight line segment of the contact piece is 160°.
[0009] Preferably, in order to improve the elasticity and strength of the elastic metal contact piece, the elastic metal contact piece is a beryllium bronze piece.
[0010] Preferably, in order to improve the connection strength between the insulating support seat and the insulating substrate, the insulating support seat and the insulating substrate are formed integrally, or the insulating support seat is connected to the insulating substrate by bolts.
[0011] Preferably, in order to make the elasticity of the two elastic metal contact sheets have a longer service life, the clamping tool for performance testing of surface-mounted organic thin film capacitors also includes two elastic metal support sheets, the elastic metal support sheet includes a support sheet transverse straight line segment, a support sheet oblique arc segment and a support sheet rewinding support end connected in sequence, the support sheet transverse straight line segment is provided with a vertical support sheet through hole, the two support sheet transverse straight line segments are respectively placed above the two contact sheet transverse straight line segments and the two connecting bolts respectively pass through the two support sheet through holes, the two support sheet oblique arc segments are respectively located on the outside of the two contact sheet oblique straight line segments, the middle part of the support sheet oblique arc segment protrudes in the direction away from the corresponding contact sheet oblique straight line segment, the two support sheet rewinding support ends are respectively located on the outside of the lower part of the two contact sheet vertical straight line segments and are in corresponding contact, and the support sheet rewinding support end is first bent in the direction away from the corresponding contact sheet vertical straight line segment and then bent downward.
[0012] Preferably, in order to improve the elasticity and strength of the elastic metal support sheet, the elastic metal support sheet is a beryllium bronze sheet.
[0013] Preferably, in order to increase the strength of the metal pin and improve the conductivity, the metal pin is a galvanized steel sheet.
[0014] Preferably, in order to facilitate observation during the test process and improve test efficiency, the insulating substrate is a transparent plastic plate.
[0015] The beneficial effects of the utility model are:
[0016] The utility model installs two metal pins and two elastic metal contact pieces on an insulating substrate, correspondingly connects the metal pins and the two elastic metal contact pieces, and arranges an insulating support seat on the insulating substrate between the two elastic metal contact pieces. When performing a performance test on a surface-mounted organic film capacitor, the surface-mounted organic film capacitor only needs to be placed on the insulating support seat and located between the two elastic metal contact pieces, so that the two elastic metal contact pieces are respectively and reliably contacted with two surface-mounted lead-out pieces of the surface-mounted organic film capacitor, and then the two metal pins are inserted into the plug-in wiring terminals of a test instrument (or connected to the wiring clips of the test instrument). Thus, the connection operation and the test operation before the test can be quickly completed by one person, and the conductive performance is stable and reliable, which can improve the test accuracy and test efficiency, and save time and labor costs. BRIEF DESCRIPTION OF THE DRAWINGS
[0017] Figure 1 It is a three-dimensional diagram of a surface-mount organic film capacitor;
[0018] Figure 2 It is a front view of the clamping tool for performance testing of surface-mounted organic film capacitors according to the utility model;
[0019] Figure 3 It is a left view of the clamping tool for performance testing of surface-mounted organic film capacitors according to the utility model;
[0020] Figure 4 It is a top view of the clamping tool for performance testing of surface-mounted organic film capacitors described in the utility model;
[0021] Figure 5 It is a front view of the clamping tooling used for performance testing of surface-mounted organic film capacitors described in the utility model when in use. DETAILED DESCRIPTION
[0022] The utility model is further described below in conjunction with the accompanying drawings:
[0023] like Figure 2-Figure 4 As shown, the clamping fixture for performance testing of surface-mounted organic film capacitors described in the utility model includes an insulating substrate 4, two metal pins 5 installed on the insulating substrate 4, and an elastic metal contact sheet 9, one end of the two elastic metal contact sheets 9 is installed on the insulating substrate 4 and conductively connected to the two metal pins 5 respectively, an insulating support seat 10 is provided on the insulating substrate 4 between the two elastic metal contact sheets 9, and the other ends of the two elastic metal contact sheets 9 have elastic force to approach each other.
[0024] like Figure 1-Figure 4 As shown, the utility model also discloses the following more optimized specific structures:
[0025] In order to facilitate processing and assembly and make the elastic metal contact piece 9 have reliable elasticity to improve the conductive performance between it and the surface-mounted lead-out piece 2 of the surface-mounted organic film capacitor, the plane where the insulating substrate 4 is located is taken as the horizontal plane, and the elastic metal contact piece 9 includes a contact piece horizontal straight line segment 93, a contact piece oblique straight line segment 92 and a contact piece vertical straight line segment 91 which are connected in sequence. The angle between the contact piece horizontal straight line segment 93 and the contact piece oblique straight line segment 92, and the angle between the contact piece oblique straight line segment 92 and the contact piece vertical straight line segment 91 are both obtuse angles. The two contact piece horizontal straight line segments 93 are respectively placed on the upper surface of the insulating substrate 4 and are respectively located on both sides of the insulating support seat 10. The upper sides of the insulating support seat 10 are respectively close to the two contact piece vertical straight line segments 91. A vertical contact sheet through hole (not visible in the figure) is provided on segment 93, two sheet-shaped and vertical metal pins 5 respectively pass through two corresponding vertical through holes 41 on the insulating substrate 4, the upper end of the metal pin 5 is bent 90° to form a pin transverse connecting section 51, and a vertical pin through hole (not visible in the figure) is provided on the pin transverse connecting section 51, and two vertical substrate screw holes (not visible in the figure) or substrate through holes (not visible in the figure) are provided on the insulating substrate 4, and the screw rods of the two connecting bolts 6 respectively pass through the two contact sheet through holes and the two pin through holes in turn and are connected to the two substrate screw holes, or the screw rods of the two connecting bolts 6 respectively pass through the two contact sheet through holes, the two pin through holes, and the two substrate through holes in turn and are connected to two nuts (not visible in the figure).
[0026] For ease of application, the angle between the contact piece transverse straight line segment 93 and the contact piece oblique straight line segment 92 is 110°, and the angle between the contact piece oblique straight line segment 92 and the contact piece vertical straight line segment 91 is 160°.
[0027] In order to improve the elasticity and strength of the elastic metal contact piece 9, the elastic metal contact piece 9 is a beryllium copper piece.
[0028] In order to improve the connection strength between the insulating support base 10 and the insulating substrate 4, the insulating support base 10 and the insulating substrate 4 are integrally formed, or the insulating support base 10 is connected to the insulating substrate 4 by bolts (not visible in the figure).
[0029] In order to make the elasticity of the two elastic metal contact sheets 9 have a longer service life, the clamping tool for performance testing of surface-mounted organic thin film capacitors also includes two elastic metal support sheets 8, which include a support sheet transverse straight line segment 83, a support sheet oblique arc segment 82 and a support sheet rewinding support end 81 connected in sequence, and a vertical support sheet through hole (not visible in the figure) is provided on the support sheet transverse straight line segment 83. The two support sheet transverse straight line segments 83 are respectively placed above the two contact sheet transverse straight line segments 93 and the two connecting bolts 6 pass through the two support sheet through holes respectively. The two support sheet oblique arc segments 82 are respectively located on the outside of the two contact sheet oblique straight line segments 92, and the middle part of the support sheet oblique arc segment 82 protrudes in the direction away from the corresponding contact sheet oblique straight line segment 92. The two support sheet rewinding support ends 81 are respectively located on the outside of the lower part of the two contact sheet vertical straight line segments 91 and are in corresponding contact, and the support sheet rewinding support end 81 is first bent in the direction away from the corresponding contact sheet vertical straight line segment 91 and then bent downward.
[0030] In order to improve the elasticity and strength of the elastic metal support sheet 8, the elastic metal support sheet 8 is a beryllium bronze sheet.
[0031] In order to increase the strength of the metal pin 5 and improve the conductivity, the metal pin 5 is a galvanized steel sheet.
[0032] In order to facilitate observation during the test process and improve the test efficiency, the insulating substrate 4 is a transparent plastic plate.
[0033] Figure 2-Figure 5 Also shown is a gasket 7 disposed between the nut of the connecting bolt 6 and the transverse straight line section 83 of the supporting plate, which is a conventional structure.
[0034] like Figure 1-Figure 5 As shown, when used, the shell 3 of the surface-mount organic film capacitor to be tested is placed on the insulating support seat 10 and located between the two elastic metal contact sheets 9, and the two surface-mount lead sheets 2 of the surface-mount organic film capacitor are downward. During the installation process, it is only necessary to push the two contact sheet transverse straight line segments 93 in the direction away from each other with a little force, so that the surface-mount organic film capacitor can be placed between the two contact sheet transverse straight line segments 93 and on the insulating support seat 10. After placement, the contact sheet transverse straight line segments 93 of the two elastic metal contact sheets 9 are respectively and reliably contacted with the two surface-mount lead sheets 2 of the surface-mount organic film capacitor, and then the lower ends of the two metal pins 5 are inserted into the plug-in terminal of the test instrument (not shown in the figure) (it can also be connected to the wiring clamp of the test instrument), so that the connection operation and test operation before the test can be quickly completed by one person, and the conductive performance is stable and reliable, and then the test can be started.
[0035] The above embodiments are only preferred embodiments of the present utility model and are not limitations on the technical solutions of the present utility model. Any technical solution that can be implemented on the basis of the above embodiments without creative work should be deemed to fall within the scope of protection of the patent of the present utility model.
Claims
1. A clamping fixture for performance testing of surface-mounted organic film capacitors, comprising an insulating substrate and two metal pins mounted on the insulating substrate, characterized in that: It also includes an elastic metal contact piece, one end of each of the two elastic metal contact pieces is mounted on the insulating substrate and is conductively connected to the two metal pins respectively, an insulating support seat is provided on the insulating substrate between the two elastic metal contact pieces, and the other ends of the two elastic metal contact pieces have an elastic force to approach each other.
2. The clamping tool for performance testing of surface-mount organic film capacitors according to claim 1, characterized in that: Taking the plane where the insulating substrate is located as the horizontal plane, the elastic metal contact piece includes a contact piece horizontal straight line segment, a contact piece oblique straight line segment and a contact piece vertical straight line segment which are connected in sequence, the angle between the contact piece horizontal straight line segment and the contact piece oblique straight line segment, and the angle between the contact piece oblique straight line segment and the contact piece vertical straight line segment are both obtuse angles, the two contact piece horizontal straight line segments are respectively placed on the insulating substrate and on both sides of the insulating support seat, the upper sides of the insulating support seat are respectively close to the two contact piece vertical straight line segments, and the contact piece horizontal straight line segment is provided with a vertical contact piece Through hole, two sheet-shaped and vertical metal pins respectively pass through two corresponding vertical through holes on the insulating substrate, the upper end of the metal pin is bent 90° to form a pin transverse connecting section, and the pin transverse connecting section is provided with a vertical pin through hole, and the insulating substrate is provided with two vertical substrate screw holes or substrate through holes, and the screw rods of the two connecting bolts respectively pass through the two contact sheet through holes and the two pin through holes in sequence and are connected with the two substrate screw holes, or the screw rods of the two connecting bolts respectively pass through the two contact sheet through holes, the two pin through holes, and the two substrate through holes in sequence and are connected with the two nuts.
3. The clamping tool for performance testing of surface-mounted organic film capacitors according to claim 2, characterized in that: The included angle between the transverse straight line segment of the contact piece and the oblique straight line segment of the contact piece is 110°, and the included angle between the oblique straight line segment of the contact piece and the vertical straight line segment of the contact piece is 160°.
4. The clamping tool for performance testing of surface-mounted organic film capacitors according to claim 2, characterized in that: The elastic metal contact piece is a beryllium bronze piece.
5. The clamping tool for performance testing of surface-mounted organic film capacitors according to claim 2, characterized in that: The insulating support seat is integrally formed with the insulating substrate, or the insulating support seat is connected to the insulating substrate via bolts.
6. The clamping tool for performance testing of surface-mount organic film capacitors according to any one of claims 2 to 5, characterized in that: The clamping tool for performance testing of surface-mounted organic film capacitors also includes two elastic metal support sheets, which include a transverse straight line segment of the support sheet, an oblique arc segment of the support sheet and a rewinding support end of the support sheet connected in sequence, a vertical support sheet through hole is provided on the transverse straight line segment of the support sheet, the two transverse straight line segments of the support sheet are respectively placed above the two transverse straight line segments of the contact sheet and the two connecting bolts pass through the two through holes of the support sheet respectively, the two oblique arc segments of the support sheet are respectively located on the outside of the two oblique straight line segments of the contact sheet, the middle part of the oblique arc segment of the support sheet protrudes in the direction away from the corresponding oblique straight line segment of the contact sheet, the two rewinding support ends of the support sheet are respectively located on the outside of the lower part of the two vertical straight line segments of the contact sheet and are in corresponding contact, and the rewinding support end of the support sheet is first bent in the direction away from the corresponding vertical straight line segment of the contact sheet and then bent downward.
7. The clamping tool for performance testing of surface-mounted organic film capacitors according to claim 6, characterized in that: The elastic metal supporting sheet is a beryllium bronze sheet.
8. The clamping tool for performance testing of surface-mount organic film capacitors according to any one of claims 1 to 5, characterized in that: The metal pins are galvanized steel sheets.
9. The clamping tool for performance testing of surface-mount organic film capacitors according to any one of claims 1 to 5, characterized in that: The insulating substrate is a transparent plastic plate.