CN205789531U - A kind of assembling fixture of multicore structure tantalum capacitor - Google Patents

Abstract

The utility model provides an assembly fixture for a multi-core structure tantalum capacitor, which includes a male groove body and a female groove body; a plurality of mating blocks are arranged on the right side of the male groove body, and the distance between each mating block is Equal, the left side of the female groove body is provided with a counter-insert piece for inserting into the gap between each counter-insert block; The upper end is provided with a U-shaped groove and a positive electrode lead platform, and the height of the stepped surface is between the bottom of the U-shaped groove and the cathode limit platform. The utility model uses the multi-core structure chip solid electrolyte capacitor manufactured by the fixture, which can realize two or more tantalum wires on the same horizontal plane, and has high manual bonding accuracy, which solves the problem of spot welding the tantalum wires on the lead frame. The defects of capacitor direct short circuit and leakage current out of tolerance; the utility model is simple in structure, easy to use, and greatly improves the efficiency of manual bonding while ensuring the bonding quality.

Description

An assembly jig for a multi-core structure tantalum capacitor

technical field

The utility model relates to the technical field of manufacturing technology of chip type solid electrolytic capacitors, in particular to an assembly fixture for multi-core structure tantalum capacitors.

Background technique

Tantalum electrolytic capacitors are widely used in various high-end electronic equipment such as aerospace, aviation, electronics, weapons, ships, communications and medical electronics due to their small size, large capacity, good temperature characteristics, high stability and reliability. With the continuous development of electronic equipment in the direction of miniaturization, one of the characteristics of the development of miniaturization is that the operating frequency is getting higher and higher, which puts forward higher requirements for the operating frequency of electronic components. For this reason, the tantalum capacitor manufacturing industry has been making continuous efforts to continuously reduce the ESR of tantalum capacitors.

At present, in the manufacturing process of tantalum capacitors, the tantalum core after soaking graphite and silver paste needs to be bonded to the lead frame by bonding silver paste. The multi-core bonding method is different from the traditional single-core structure tantalum core. The bonding method of the core is very different, which requires high accuracy, and also has high requirements for the flatness of the tantalum core. The implementation of multi-core combination is one of the most effective ways to reduce the equivalent series resistance of chip tantalum capacitors. In the case where mechanized bonding cannot be implemented, manual bonding must be selected. At the same time, due to manual operation and dimensional errors of the tantalum core, many problems will be caused by manual bonding, such as direct short circuit of the finished capacitor and excessive leakage current. The main reason is that the coated tantalum core is bonded on a horizontal plane, and the bonded tantalum wire is not on the same plane.

Utility model content

In order to solve the above-mentioned technical problems, the utility model provides an assembly fixture of a multi-core structure tantalum capacitor. The assembly fixture of the multi-core structure tantalum capacitor forms a plurality of side-by-side placement grooves for placing tantalum cores through the male groove body and the female groove body. The tantalum core can keep the tantalum wire on the same plane during the bonding process, which solves the problems caused by manual operation errors and dimensional errors of the tantalum core.

The utility model is realized through the following technical solutions.

The utility model provides an assembly fixture for a multi-core structure tantalum capacitor, which includes a male groove body and a female groove body; a plurality of mating blocks are arranged on the right side of the male groove body, and the distance between each mating block Equal, the left side of the female groove body is provided with a counter-insert piece for inserting into the gap between each counter-insert block; The upper end is provided with a U-shaped groove and a positive electrode lead platform, and the height of the stepped surface is between the bottom of the U-shaped groove and the cathode limit platform.

The top of the U-shaped groove is higher than the positive electrode lead platform.

The material of the male groove body and the female groove body is aluminum, copper, iron or alloy metal containing aluminum, copper, iron.

The male groove body and the female groove body are fixedly connected through the positioning holes A and B at the left and right ends respectively.

The two ends of the male groove body and the female groove body are respectively fixedly connected by locks.

The beneficial effect of the utility model is that: using the multi-core structure chip solid electrolyte capacitor manufactured by the fixture, two or more tantalum wires can be placed on the same horizontal plane, and the manual bonding accuracy is high, which solves the problem of spot welding the tantalum wires. The defects of capacitor direct short circuit and leakage current exceeding tolerance appear on the lead frame; the utility model has simple structure, convenient use, and greatly improves the efficiency of manual bonding while ensuring the bonding quality.

Description of drawings

Fig. 1 is the structural representation of the utility model;

Fig. 2 is the top view of Fig. 1;

Fig. 3 is a schematic structural view of the male groove body in Fig. 1;

Fig. 4 is the left view of Fig. 3;

Fig. 5 is a schematic structural view of the female groove body in Fig. 1;

Fig. 6 is the left side view of Fig. 5;

Fig. 7 is a schematic diagram of the use state of Fig. 1;

In the figure: 1-male groove body, 11-cathode limit platform, 12-step surface, 13-positioning hole A, 14-pair plug, 2-female groove body, 21-U-shaped groove, 22-positive lead platform , 23-positioning hole B, 24-pair of inserts, 3-tantalum core, 31-anode tantalum wire.

detailed description

The technical solution of the utility model is further described below, but the scope of protection is not limited to the description.

An assembly fixture for a multi-core structure tantalum capacitor as shown in Figures 1 to 6 includes a male groove body 1 and a female groove body 2; the right side of the male groove body 1 is provided with a plurality of mating blocks 14, and The spacing between each mating block 14 is equal, and the left side of the female groove body 2 is provided with a mating piece 24 for inserting into the gap between each mating block 14; the upper end of the mating block 14 is provided with a cathode The limit platform 11 and the step surface 12, the upper end of the pair of inserts 24 is provided with a U-shaped groove 21 and a positive electrode lead platform 22, and the height of the step surface 12 is between the bottom of the U-shaped groove 21 and the cathode limit platform 11 between. The male groove body 1 and the female groove body 2 can be processed by milling machine or wire cutting.

The top of the U-shaped groove 21 is higher than the positive electrode lead platform 22 to prevent the tantalum core from shifting during the bonding process and affecting the bonding effect.

The material of the male groove body 1 and the female groove body 2 is aluminum, copper, iron or alloy metal containing aluminum, copper, and iron. The male groove body 1 and the female groove body 2 are fixedly connected through the positioning holes A13 and B23 at the left and right ends respectively, the positioning holes A13 at both ends of the male groove body 1 are threaded holes, and the positioning holes B23 at both ends of the female groove body 2 are through holes. hole. The two ends of the male groove body 1 and the female groove body 2 can also be fixedly connected directly through purchased locking pieces respectively.

The height of the negative limit platform 11 of the male groove body 1 is lower than the top surface of the male groove body 1 ; the stepped surface 12 is lower than the negative limit platform 11 and extends to the far right of the male groove body 1 . A U-shaped groove 21 is formed on the top of the mating piece 24 of the female groove body 2 , and the height of the bottom of the U-shaped groove 21 is lower than the stepped surface 12 of the male groove body 1 .

During the actual use of the utility model, as shown in Figure 7, the tantalum core 3 is put into the U-shaped groove 21, the cathode of the tantalum core 3 is placed on the negative limit position platform 11, and the anode tantalum wire 31 is neatly arranged side by side in the female groove On the positive electrode lead platform 22 of the body 2, it is ensured that the paralleled tantalum cores 3 are all on the same plane, which solves the problems of large leakage current and short circuit caused by uneven anode tantalum wires 31 during the spot welding process.

Claims (4)

1. an assembling fixture for multicore structure tantalum capacitor, including male groove body (1) and female groove body (2), it is characterised in that: The right side of described public groove body (1) is provided with multiple to inserted block (14), and each is equal to the spacing between inserted block (14), described The left side of female groove body (2) be provided with for insert each to the gap between inserted block (14) to inserted sheet (24)；Described to inserting The upper end of block (14) is provided with negative electrode limiting stand (11) and step surface (12), and the described upper end to inserted sheet (24) is provided with U-type groove And positive wire platform (22), and the height of described step surface (12) is at the bottom of U-type groove (21) and negative electrode limiting stand (21) (11) between.

2. the assembling fixture of multicore structure tantalum capacitor as claimed in claim 1, it is characterised in that: described U-type groove (21) Top is higher than positive wire platform (22).

3. the assembling fixture of multicore structure tantalum capacitor as claimed in claim 1 or 2, it is characterised in that: described public groove body (1) pass through the hole, location A (13) at two ends, left and right respectively with female groove body (2) and position the fixing connection of hole B (23).

4. the assembling fixture of multicore structure tantalum capacitor as claimed in claim 1 or 2, it is characterised in that: described public groove body (1) connect by snap close is fixing respectively with the two ends of female groove body (2).