CN219730168U

CN219730168U - High-resistance Wen Tongbao aluminum bonding wire

Info

Publication number: CN219730168U
Application number: CN202321093530.6U
Authority: CN
Inventors: 王佑任; 彭庶瑶; 彭晓飞; 霍建平
Original assignee: Jiangxi Microblue Electronic & Technology Co ltd
Current assignee: Jiangxi Microblue Electronic & Technology Co ltd
Priority date: 2023-05-09
Filing date: 2023-05-09
Publication date: 2023-09-22
Anticipated expiration: 2033-05-09

Abstract

The utility model discloses a high-temperature-resistant Wen Tongbao aluminum bonding wire, which comprises a transmission sleeve, wherein turntables are rotatably arranged at the outer sides of two ends of the transmission sleeve, the outer sides of the two turntables are provided with bearing sleeves, convex strips are uniformly arranged at the outer sides of the bearing sleeves, a winding drum for winding the high-temperature-resistant copper-clad aluminum bonding wire is sleeved at the outer sides of the bearing sleeves, a transmission slot matched with the convex strips is formed in the inner sides of the winding drum, and an overload protection mechanism is arranged between the transmission sleeve and the bearing sleeve. According to the utility model, when the copper-clad aluminum bonding wire is tensioned due to the fact that the outer linear speed of the winding reel is greater than the wire outlet speed, the bearing sleeve does not synchronously rotate along with the transmission sleeve, and further the copper-clad aluminum bonding wire is prevented from being broken due to traction force.

Description

High-resistance Wen Tongbao aluminum bonding wire

Technical Field

The utility model relates to the technical field of bonding wires, in particular to a high Wen Tongbao-resistant aluminum bonding wire.

Background

Bonding is an important step in the production of integrated circuits and is the operation of connecting the circuit chip to the leadframe. The bonding wire is a micro-fine wire inner lead used for realizing electric link between an input/output bonding point of an on-chip circuit and an inner contact point of a lead frame when the semiconductor device and the integrated circuit are assembled.

From the chemical composition, the existing copper bonding wire replaces gold wires greatly in the semiconductor field, but compared with the copper bonding wire, the copper-clad aluminum bonding wire has the main advantages of lower product cost, bonding wires with the same length, lighter weight, winding through a winding reel after the existing copper-clad aluminum bonding wire is produced, convenient for subsequent transportation, but hard transmission is adopted between the existing winding reel and a winding machine, and when the wire outlet speed of the winding machine is smaller than the winding speed of the winding reel, the copper-clad aluminum bonding wire is easily tensioned, so that the copper-clad aluminum bonding wire is broken due to overlarge traction force.

Therefore, it is necessary to invent a high Wen Tongbao aluminum bond wire to solve the above problems.

Disclosure of Invention

The utility model aims to provide a high Wen Tongbao-resistant aluminum bonding wire, which solves the problems in the prior art.

In order to achieve the above purpose, the present utility model provides the following technical solutions: the utility model provides a high Wen Tongbao aluminium bonding silk that resistant, includes the drive sleeve, the both ends outside of drive sleeve all rotates and is provided with the carousel, two the outside regulation of carousel is connected with bears the cover, it evenly is provided with the sand grip to bear the outside of cover, it is equipped with the bobbin that is used for coiling high temperature resistant copper clad aluminium bonding silk to bear the outside cover of cover, and the inboard of bobbin offered with sand grip assorted transmission slot, the drive sleeve with bear the weight of the interlude and be provided with overload protection mechanism.

Preferably, the overload protection mechanism comprises an extrusion sleeve, friction plates, a pressing plate and a positioning pin, wherein the extrusion sleeve with a wedge-shaped cross section is arranged on the inner side of the bearing sleeve, the friction plates which are arc-shaped are uniformly arranged on the outer side of the transmission sleeve, the pressing plate matched with the extrusion sleeve is glued on the outer side of the friction plates, and the positioning pin fixedly connected with the transmission sleeve is arranged on the two sides of the pressing plate in a penetrating mode.

Preferably, the inner side of the bearing sleeve is uniformly provided with a guide chute, a slide bar fixedly connected with the extrusion sleeve is arranged in the guide chute, one side of the turntable is provided with an adjusting ejector rod for adjusting the position of the extrusion sleeve, and the outer sides of the two ends of the transmission sleeve are respectively provided with an arch spring plate for jacking the pressing plate.

Preferably, the mounting groove has been seted up to one side of sand grip, is provided with buffer spring in the mounting groove, buffer spring's extension end is provided with the support bar, the outside cover of support bar is equipped with the limiting plate with sand grip fixed connection.

Preferably, a stop block for blocking the supporting bar is arranged at the opening of the transmission slot, and guide inclined planes are arranged at the front end and the rear end of the stop block.

Compared with the prior art, the utility model provides a high Wen Tongbao aluminum bonding wire, which has the following beneficial effects: according to the utility model, the overload protection mechanism is adopted for transmission, and when the outer side linear speed of the winding reel is higher than the wire outlet speed and the copper-clad aluminum bonding wire is tensioned, the bearing sleeve does not synchronously rotate along with the transmission sleeve, so that the copper-clad aluminum bonding wire is prevented from being broken due to traction force.

Drawings

FIG. 1 is a front view of the present utility model;

FIG. 2 is a front cross-sectional view of the present utility model;

FIG. 3 is a schematic view of the structure of the surface A in FIG. 1;

FIG. 4 is a schematic view of the structure of the B-side in FIG. 3;

fig. 5 is a schematic cross-sectional view of the convex strip according to the present utility model.

In the figure: 1. a transmission sleeve; 2. a turntable; 3. a bearing sleeve; 4. a bobbin; 5. overload protection mechanism; 50. extruding the sleeve; 51. a friction plate; 52. pressing the plate; 53. a positioning pin; 54. a slide bar; 55. adjusting the ejector rod; 56. an arched spring plate; 6. a convex strip; 7. a buffer spring; 8. a support bar; 9. a limiting plate; 10. and a stop block.

Detailed Description

The following description of the embodiments of the present utility model will be made clearly and completely with reference to the accompanying drawings, in which it is apparent that the embodiments described are only some embodiments of the present utility model, but not all embodiments. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

Referring to fig. 1-5, an embodiment of a high Wen Tongbao aluminum bonding wire is provided: the utility model provides a high Wen Tongbao aluminium bonding wire, including driving sleeve 1, the both ends outside of driving sleeve 1 all rotates and is provided with carousel 2, the outside regulation of two carousels 2 is connected with and bears the cover 3, bear the outside of cover 3 and evenly be provided with sand grip 6, bear the cover 3 outside cover be equipped with be used for coiling high temperature resistant copper clad aluminium bonding wire's bobbin 4, and bobbin 4's inboard offered with sand grip 6 assorted transmission slot, be provided with overload protection mechanism 5 between driving sleeve 1 and bearing the cover 3, overload protection mechanism 5 includes extrusion cover 50, friction disc 51, push plate 52 and locating pin 53, bear the inboard of cover 3 and be provided with the extrusion cover 50 that the transversal face is the wedge type, the outside of driving sleeve 1 evenly is provided with the friction disc 51 that is the arc, the outside gluing of friction disc has with extrusion cover 50 assorted push plate 52, the both sides of push plate 52 run through be provided with the locating pin 53 of being connected fixedly with driving sleeve 1, the pressing plate 52 is pressed by the pressing sleeve 50, meanwhile, the pressing plate 52 moves towards the direction of the transmission sleeve 1 under the guiding action of the positioning pin 53, so that the friction plate 51 is tightly attached to the outer side of the transmission sleeve 1, the bearing sleeve 3 is driven to synchronously rotate by static friction force between the friction plate 51 and the transmission sleeve 1, the bearing sleeve 3 does not synchronously rotate along with the transmission sleeve 1 after overload, further, the copper-clad aluminum bonding wire is prevented from being broken due to traction force, meanwhile, the inner side of the bearing sleeve 3 is uniformly provided with a guiding chute, a sliding strip 54 fixedly connected with the pressing sleeve 50 is arranged in the guiding chute, one side of the turntable 2 is provided with an adjusting ejector rod 55 for adjusting the position of the pressing sleeve 50, the outer sides of two ends of the transmission sleeve 1 are respectively provided with an arch-shaped elastic sheet 56 for jacking the pressing plate 52, the insertion depth of the pressing sleeve 50 is adjusted by adjusting the ejector rod 55, meanwhile, the pressing plate 52 is pushed by the elasticity of the arch spring plate 56, so that the pressing plate 52 reversely pushes the extrusion sleeve 50, and the extrusion force between the friction plate 51 and the transmission sleeve 1 is adjustable.

In this embodiment, as shown in fig. 5, an installation groove is formed in one side of the raised strip 6, a buffer spring 7 is arranged in the installation groove, a supporting strip 8 is arranged at the extending end of the buffer spring 7, a limiting plate 9 fixedly connected with the raised strip 6 is sleeved on the outer side of the supporting strip 8, and the supporting strip 8 is supported by the buffer spring 7, so that the supporting strip 8 can be recycled into the installation groove, and the copper-clad aluminum bonding wire is prevented from being buffered when being suddenly tensioned.

In this embodiment, as shown in fig. 5, the opening of the transmission slot is provided with a stop block 10 for blocking the supporting bar 8, and the front and rear ends of the stop block 10 are provided with guiding inclined planes, so that the stop of the stop block 10 on the supporting bar 8 prevents the bobbin 4 from axial movement.

Working principle: during operation, the adjusting ejector rod 55 is used for adjusting the insertion depth of the extrusion sleeve 50, meanwhile, the elastic force of the arch-shaped elastic sheet 56 is used for pushing the pressing plate 52, so that the pressing plate 52 reversely pushes the extrusion sleeve 50, the extrusion sleeve 50 extrudes the pressing plate 52, meanwhile, the guiding effect of the positioning pin 53 is used, so that the pressing plate 52 moves towards the transmission sleeve 1, the friction plate 51 is tightly attached to the outer side of the transmission sleeve 1, the static friction force between the friction plate 51 and the transmission sleeve 1 is used for driving the bearing sleeve 3 to synchronously rotate, the bearing sleeve 3 does not synchronously rotate along with the transmission sleeve 1 after overload, further, the copper-clad aluminum bonding wire is prevented from being broken due to traction force, and meanwhile, the winding reel 4 can be quickly installed or detached on the bearing sleeve 3 in an inserting connection mode between the convex strip 6 and the transmission slot, so that the winding of the copper-clad aluminum bonding wire is more convenient.

It will be evident to those skilled in the art that the utility model is not limited to the details of the foregoing illustrative embodiments, and that the present utility model may be embodied in other specific forms without departing from the spirit or essential characteristics thereof. The present embodiments are, therefore, to be considered in all respects as illustrative and not restrictive, the scope of the utility model being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

In the description of the present utility model, unless otherwise indicated, the meaning of "a plurality" is two or more; the terms "upper," "lower," "left," "right," "inner," "outer," "front," "rear," "head," "tail," and the like are used as an orientation or positional relationship based on that shown in the drawings, merely to facilitate description of the utility model and to simplify the description, and do not indicate or imply that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore should not be construed as limiting the utility model. Furthermore, the terms "first," "second," "third," and the like are used for descriptive purposes only and are not to be construed as indicating or implying relative importance.

In the description of the present utility model, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present utility model will be understood in specific cases by those of ordinary skill in the art.

Claims

1. The utility model provides a high Wen Tongbao aluminium bonding silk, includes drive sleeve (1), its characterized in that: the novel high-temperature-resistant copper-clad aluminum bonding wire winding machine is characterized in that rotary tables (2) are rotatably arranged at the outer sides of two ends of each transmission sleeve (1), two rotary tables (2) are fixedly connected with bearing sleeves (3), raised strips (6) are uniformly arranged at the outer sides of the bearing sleeves (3), bobbins (4) for winding high-temperature-resistant copper-clad aluminum bonding wires are sleeved at the outer sides of the bearing sleeves (3), transmission slots matched with the raised strips (6) are formed in the inner sides of the bobbins (4), and overload protection mechanisms (5) are arranged between the transmission sleeves (1) and the bearing sleeves (3).

2. A high Wen Tongbao aluminum bond wire according to claim 1, wherein: overload protection mechanism (5) are including extrusion cover (50), friction disc (51), pressing plate (52) and locating pin (53), the inboard that bears cover (3) is provided with the extrusion cover (50) that the transversal face is the wedge, the outside of transmission cover (1) evenly is provided with and is arc friction disc (51), the outside gluing of friction disc has pressing plate (52) with extrusion cover (50) assorted, the both sides of pressing plate (52) are run through and are provided with locating pin (53) fixedly connected with transmission cover (1).

3. A high Wen Tongbao aluminum bond wire according to claim 2, wherein: the bearing sleeve is characterized in that a guide chute is uniformly formed in the inner side of the bearing sleeve (3), a slide bar (54) fixedly connected with the extrusion sleeve (50) is arranged in the guide chute, an adjusting ejector rod (55) for adjusting the position of the extrusion sleeve (50) is arranged on one side of the rotary table (2), and arch-shaped elastic sheets (56) for jacking up the pressing plates (52) are arranged on the outer sides of two ends of the transmission sleeve (1).

4. A high Wen Tongbao aluminum bond wire according to claim 1, wherein: one side of sand grip (6) has seted up mounting groove, is provided with buffer spring (7) in the mounting groove, the end that stretches out of buffer spring (7) is provided with support bar (8), the outside cover of support bar (8) is equipped with limiting plate (9) with sand grip (6) fixed connection.

5. A high Wen Tongbao aluminum bond wire according to claim 4, wherein: the opening of the transmission slot is provided with a stop block (10) for blocking the support bar (8), and the front end and the rear end of the stop block (10) are provided with guide inclined planes.