Lead measuring jig

Abstract

The utility model relates to the technical field of lead wire measurement, and discloses a lead wire measuring jig, which comprises a fixing piece, at least one wire slot is arranged on the fixing piece, the wire slot is suitable for placing a lead wire of an inductor along the length direction of the wire slot, and the first end of the lead wire is flush with the first end of the wire slot; and the second end of the detection piece is flush with the second end of the wire slot, and the first end of the detection piece is provided with a step-shaped tolerance part. According to the utility model, the inductance lead is accurately positioned through the trunking of the fixing piece, one end of the lead is ensured to be flush, the tolerance part of the detection piece and the other end of the trunking form a measurement space, visual errors during manual measurement are effectively avoided, and the measurement precision is improved; meanwhile, the measuring steps are reduced, the measuring speed is greatly improved, and the labor cost and the labor intensity are reduced; the structure design is standard and unified, standardized operation is convenient to realize, the reliability and efficiency of measurement are integrally enhanced, and the power inductance lead measurement requirement is met.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of lead measurement, specifically relates to a lead measurement fixture. BACKGROUND

[0002] Power inductance occupies a key position in electronic equipment, and its core function is to filter high-frequency components and implement current limiting operation. Taking a class D amplifier as an example, power inductance can effectively filter high-frequency components, thereby significantly enhancing the stability and working efficiency of the circuit. At the same time, the parasitic inductance of power inductance has a very obvious influence on the dynamic characteristics of insulated gate bipolar transistors (IGBT) and silicon carbide metal-semiconductor field effect transistors (SiC MOSFET).

[0003] In terms of structural composition of power inductance, the lead is an indispensable part, which plays an important role in connecting the inductance main body and the external circuit. With the continuous evolution of inductance structure towards complexity, the number of electronic wires shows a trend of increasing. The existing inductance electronic lead length measurement method generally adopts manual steel ruler measurement, which needs to be accurately aligned during measurement. The process is not only tedious and time-consuming, but also prone to inaccurate data due to visual errors. Moreover, manual measurement is prone to fatigue, affecting the measurement speed and accuracy, increasing labor costs and making it difficult to realize standardized operation. UTILITY MODEL CONTENTS

[0004] Therefore, the utility model provides a lead measurement fixture to solve the problem of manual measurement of lead length in the prior art, which is not only tedious and time-consuming, but also prone to inaccurate data due to visual errors.

[0005] The utility model provides a lead measurement fixture, which comprises:

[0006] A fixing member is provided with at least one wire slot, the wire slot is suitable for placing the lead of inductance along the length direction thereof, and the first end of the lead is flush with the first end of the wire slot;

[0007] At least one detection member is provided, the second end of the detection member is flush with the second end of the wire slot, the first end of the detection member is provided with a stepped tolerance part, and two stepped surfaces of the tolerance part form two measurement spaces of different lengths of the leads between the first end of the wire slot.

[0008] Optionally, the detection member and the wire slot are correspondingly provided with a plurality of detection members.

[0009] Optionally, the distances between the tolerance parts of the plurality of detection members and the second ends of the detection members are different.

[0010] Optionally, it further comprises a connecting member, and the connecting member is fixedly connected with the plurality of detection members.

[0011] Optionally, a taking member is further included, which is fixedly connected with the connecting member, and is suitable for taking multiple detection members simultaneously.

[0012] Optionally, a length mark is arranged on the fixing member along the length direction of the wire slot.

[0013] Optionally, the first end of the wire slot is arranged as a 0 scale.

[0014] Optionally, a magnetic structure is further arranged in the wire slot, the detection member is a magnetic metal detection member, and the detection member is suitable for being magnetically adsorbed in the wire slot.

[0015] Optionally, an inductor fixing position is further arranged on the side of the fixing member away from the detection member, and the inductor fixing position is suitable for placing the inductor.

[0016] Beneficial effects

[0017] The lead measuring jig provided by the utility model has the advantages that the wire slot of the fixing member is used for accurately positioning the inductor lead, the one end of the inductor lead is ensured to be flush, the tolerance part of the detection member and the other end of the wire slot construct a measuring space, visual errors in manual measurement are effectively avoided, the measuring precision is improved, the measuring steps are reduced, the measuring speed is greatly improved, the labor cost and labor intensity are reduced, the structure design is standardized and unified, standardized operation is facilitated, the reliability and efficiency of measurement are improved as a whole, and the power inductor lead measuring requirement is met.

[0018] The wire slot of the fixing member is used for accurately positioning the inductor lead, the one end of the inductor lead is ensured to be flush, the tolerance part of the detection member and the other end of the wire slot construct a measuring space, visual errors in manual measurement are effectively avoided, the measuring precision is improved, the measuring steps are reduced, the measuring speed is greatly improved, the labor cost and labor intensity are reduced, the structure design is standardized and unified, standardized operation is facilitated, the reliability and efficiency of measurement are improved as a whole, and the power inductor lead measuring requirement is met. BRIEF DESCRIPTION OF DRAWINGS

[0019] In order to more clearly illustrate the technical scheme in the specific embodiment of the utility model or prior art, the drawings needed to be used in the specific embodiment or prior art description will be briefly introduced as follows, obviously, the drawings in the following description are some embodiments of the utility model, and those skilled in the art can also obtain other drawings according to these drawings without creating creative labor.

[0020] Fig. 1 It is a structure schematic view of the lead measuring jig of the utility model embodiment;

[0021] Fig. 2 It is a structure schematic view of the fixing member of the utility model embodiment.

[0022] Fig. 3 Figure 1 is a structural schematic view of the detection member and related structure of the embodiment of the present application.

[0023] Mark explanation:

[0024] 1, fixed member; 11, wire slot; 12, inductance fixing position; 2, detection member; 21, tolerance part; 3, connecting member; 4, taking member. Specific implementation

[0025] In order to make the purpose, technical scheme and advantages of the embodiment of the present application more clear, the technical scheme in the embodiment of the present application will be described clearly and completely below in combination with the drawings in the embodiment of the present application. Obviously, the described embodiments are part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the present application.

[0026] The embodiments of the present application will be described below in combination with Figs. 1 to 3 .

[0027] According to the embodiment of the present application, a lead measuring jig is provided, which comprises:

[0028] The fixed member 1 is provided with at least one wire slot 11, and the wire slot 11 is suitable for placing the lead of the inductance along the length direction thereof, and the first end of the lead is arranged flush with the first end of the wire slot 11.

[0029] The detection member 2 is arranged flush with the second end of the wire slot 11, and the first end of the detection member 2 is provided with a stepped tolerance part 21, and the two stepped surfaces of the tolerance part 21 form two measuring spaces of different lengths of the leads between the first end of the wire slot 11.

[0030] Specifically, in the present embodiment, the fixed member 1 is made of bakelite material, which has good insulation performance and can effectively prevent interference on the measurement result due to static electricity or electric leakage during the inductance lead measurement process, thereby ensuring the accuracy and safety of the measurement. Of course, in other embodiments, the fixed member 1 can also be made of other suitable materials.

[0031] It should be noted that a clamping groove suitable for clamping the lead is formed at the bottom of the wire slot 11 along the length direction thereof. The clamping groove can enhance the positioning effect of the lead, avoid horizontal rolling or deviation of the lead, and make the position more accurate. The width of the clamping groove is adapted to the diameter of the lead, and the depth is reasonably controlled, so that the lead can be stably clamped without being damaged. It can improve the measurement repeatability and accuracy, reduce the error caused by unstable wire position, and ensure accurate measurement.

[0032] Specifically, the tolerance part 21 can be provided in a U shape or an L shape. The U-shaped tolerance part 21 has two symmetrical side walls, can intuitively compare the lead length from two directions, the measurement space formed by the U-shaped tolerance part 21 is clear in boundary, and it is easy to judge whether the lead is within the tolerance range. The L-shaped tolerance part 21 utilizes the right angle structure, one side as a reference surface, and the other side defines the upper limit or lower limit of the tolerance, and when measuring, the length qualification can be quickly determined according to the relative position of the lead and the L-shaped side. In the embodiment, the tolerance part 21 is provided as an L-shaped tolerance part, and in other embodiments, the tolerance part 21 can also be provided in a U shape or other forms, as long as stable detection is ensured.

[0033] It should be noted that the tolerance part 21 is located at the first end of the detection piece 2 and is in a stepped shape, and the two stepped surfaces form measurement spaces of different lengths with the first end of the wire slot 11. When measuring the inductance lead, the distance between the two stepped surfaces can be used to define the range to determine whether the length of the lead is within the preset tolerance interval.

[0034] For example, when the length of the measured lead is 100 mm and the tolerance is ±5 mm, the distance between the two stepped surfaces of the tolerance part 21 is 10 mm. One of the stepped surfaces is located at a position corresponding to a measurement limit of 95 mm, and the other stepped surface is located at a position corresponding to a measurement limit of 105 mm. In the actual measurement process, the inductance lead is placed along the wire slot 11 of the fixing piece 1, and the first end of the inductance lead is flush with the first end of the wire slot 11. If the other end of the lead is exactly between the two stepped surfaces, it indicates that the length of the lead is within the specified tolerance range, and the product is qualified. If it exceeds this range, it can be directly judged that the length of the lead does not meet the requirements. The setting of the tolerance part 21 overcomes the defect that it is difficult to accurately control the tolerance during manual measurement. It can not only efficiently determine whether the lead is qualified or not, but also improve the measurement accuracy and reduce the error. At the same time, with the cooperation of the wire slot 11 of the fixing piece 1 and the detection piece 2, rapid positioning is achieved, the measurement speed is improved, the labor cost and labor intensity are reduced, the standardized operation is promoted, and a reliable and efficient solution for power inductance lead measurement is provided.

[0035] The inductance lead measurement jig provided by the utility model precisely positions the inductance lead through the wire slot 11 of the fixing piece 1, ensures that one end of the lead is flush, and the tolerance part 21 of the detection piece 2 and the other end of the wire slot 11 construct a measurement space, effectively avoiding visual errors during manual measurement and improving measurement accuracy. At the same time, the measurement steps are reduced, the measurement speed is greatly improved, the labor cost and labor intensity are reduced, the structure design is standardized and unified, the standardized operation is facilitated, the reliability and efficiency of the measurement are improved as a whole, and the power inductance lead measurement demand is met.

[0036] Further, the detection piece 2 and the wire slot 11 are each provided with a plurality of corresponding structures.

[0037] It is easy to understand that the detection piece 2 and the wire slot 11 are arranged in multiple, and multiple lead wires can be measured at the same time. The wire slot 11 is arranged in order to place the lead wire, avoiding the interference between the lead wires, accurately taking data, and suitable for batch measurement of multiple lead wires of inductance. In this embodiment, the detection piece 2 and the wire slot 11 are arranged as 10. Here, the number of detection piece 2 and wire slot 11 is not limited, and the appropriate number of detection piece 2 and wire slot 11 can be set according to the number of lead wires to be detected.

[0038] Further, the distance between the tolerance part 21 of the plurality of detection pieces 2 and the second end of the detection piece 2 is different.

[0039] It is easy to understand that this setting can make the jig have multifunctionality, and can measure inductance lead wires of different specifications and different length requirements. By setting tolerance parts 21 of multiple distance specifications, the adaptation to multiple tolerance ranges can be realized on the same jig, without frequent replacement of the jig, effectively improving the measurement efficiency and reducing the production cost. In the actual production detection process, the corresponding detection piece 2 can be quickly selected for measurement according to the design standard of different products, enhancing the versatility and flexibility of the measurement jig, and meeting the diversified power inductance lead wire measurement demand.

[0040] Further, it further includes a connecting piece 3, and the connecting piece 3 is fixedly connected with the plurality of detection pieces 2.

[0041] It is easy to understand that the connecting piece 3 plays a role in integrating the plurality of detection pieces 2, so that the plurality of detection pieces 2 become a whole structure. In actual use, this helps to keep the relative positional relationship between the plurality of detection pieces 2 constant, avoiding measurement errors caused by displacement or shaking of individual detection pieces 2.

[0042] Further, it further includes a taking piece 4, and the taking piece 4 is fixedly connected with the connecting piece 3, and the taking piece 4 is suitable for simultaneously taking the plurality of detection pieces 2.

[0043] It is easy to understand that the taking piece 4 facilitates the operation of the detection piece 2. When the plurality of detection pieces 2 needs to be moved or adjusted, the user can easily realize the simultaneous taking operation by means of the taking piece 4. This not only improves the work efficiency and avoids the tedious process of taking the detection piece 2 one by one, but also effectively prevents the position of the detection piece 2 from changing or being damaged due to improper taking, ensuring that the plurality of detection pieces 2 always maintains a relatively stable positional relationship during movement, thereby maintaining the accuracy and reliability of the entire measurement jig.

[0044] Further, the fixed piece 1 is provided with a length scale along the length direction of the wire slot 11.

[0045] It is easy to understand that the length scale can intuitively assist the measurement process, and the operator can quickly determine the approximate length range of the lead based on the scale, preliminarily screen out the lead with a large length deviation, and improve the work efficiency in the early stage of measurement. At the same time, the length scale can also be used as a reference to assist in confirming whether the lead is placed in place and whether it is flush with one end of the wire slot 11, reducing the measurement error caused by improper placement, and further ensuring the accuracy and convenience of the power inductor lead length measurement.

[0046] Further, the first end of the wire slot 11 is set to 0 scale.

[0047] It is easy to understand that setting the first end of the wire slot 11 to 0 scale makes the measurement starting point clear and explicit. When measuring the length of the inductor lead, the operator can directly align one end of the lead with the 0 scale without the need for additional positioning and calibration operations of the measurement starting point, simplifying the measurement process and reducing measurement errors caused by inaccurate starting point determination.

[0048] Further, the wire slot 11 is also provided with a magnetic structure, and the detection piece 2 is a magnetic metal detection piece, which is suitable for magnetic adsorption in the wire slot 11.

[0049] In detail, the wire slot 11 is provided with a magnetic structure, and the detection piece 2 is made of magnetic metal material. It is convenient to position and fix during assembly, simplifies the assembly process and improves the detection efficiency. When external force or vibration is encountered during use, it can be stabilized by magnetic adsorption to ensure the accuracy of the measurement space and avoid errors caused by displacement of the detection piece 2.

[0050] In an optional embodiment, the wire slot 11 and the detection piece 2 can also be fixed by a buckle structure. The clamping groove and the buckle are respectively arranged at the corresponding positions of the wire slot 11 and the detection piece 2. During installation, the buckle of the detection piece 2 is aligned with the clamping groove of the wire slot 11 and pressed, and the buckle is deformed and embedded in the clamping groove after being stressed, and then restores to the original state and tightly engages with the clamping groove, thereby realizing the stable connection of the two.

[0051] Further, the side of the fixing piece 1 away from the detection piece 2 is also provided with an inductor fixing position 12, which is suitable for placing the inductor.

[0052] It is easy to understand that the inductor fixing position 12 can ensure that the inductor can be placed therein when measuring the length of the inductor lead, avoiding the influence of the inductor shaking or shifting on the accuracy of the lead measurement. It provides a dedicated placement space for the inductor, making the entire measurement operation more organized, and the operator does not need to find another place to place the inductor. Moreover, by reasonably designing the shape, size, etc. of the inductor fixing position 12, it can be adapted to different specifications of the inductor, further improving the universality and practicality of the entire measurement jig, and ensuring that the power inductor lead length measurement work can be efficiently and accurately used.

[0053] Although the embodiments of the present application are described in conjunction with the drawings, various modifications and changes can be made by those skilled in the art without departing from the spirit and scope of the present application, and such modifications and changes fall within the scope of the appended claims.

Claims

1. A lead measurement fixture, comprising: The utility model relates to a kind of inductance length detection device, including: Fixed part (1), at least one wire slot (11) is arranged on it, the wire slot (11) is suitable for placing the lead of inductance along its length direction, and the first end of the lead is flush with the first end of the wire slot (11); At least one detection part (2), the second end of the detection part (2) is flush with the second end of the wire slot (11), and the first end of the detection part (2) is provided with stepped tolerance part (21), and the two stepped surfaces of the tolerance part (21) form two measuring spaces of the different lengths of the lead between the first end of the wire slot (11).

2. The lead measurement fixture of claim 1, wherein, The detection part (2) and the wire slot (11) are correspondingly provided with multiple.

3. The lead measurement fixture of claim 2, wherein, The distance between the tolerance part (21) of multiple detection parts (2) and the second end of the detection part (2) is different.

4. The lead measurement fixture of claim 2, wherein, It further includes connecting part (3), and the connecting part (3) is fixedly connected with multiple detection parts (2).

5. The lead measurement fixture of claim 4, wherein, It further includes taking part (4), and the taking part (4) is fixedly connected with the connecting part (3), and the taking part (4) is suitable for taking multiple detection parts (2) simultaneously.

6. The lead measurement fixture of any of claims 1-5, wherein, The fixed part (1) is provided with length scale along the length direction of the wire slot (11).

7. The lead measurement fixture of claim 6, wherein, The first end of the wire slot (11) is set to 0 scale.

8. The lead measurement fixture of claim 7, wherein, The wire slot (11) is further provided with magnetic structure, the detection part (2) is magnetic metal detection part, and the detection part (2) is suitable for being magnetically adsorbed in the wire slot (11).

9. The lead measurement fixture of any of claims 1-5, wherein, The fixed part (1) is further provided with inductance fixing position (12) away from the side of the detection part (2), and the inductance fixing position (12) is suitable for placing the inductance.

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