CN216775143U

CN216775143U - A cross stove tool for FPC secondary reflow soldering

Info

Publication number: CN216775143U
Application number: CN202123320710.7U
Authority: CN
Inventors: 曾金
Original assignee: Dongguan Yixingao Electronic Technology Co ltd
Current assignee: Dongguan Yixingao Electronic Technology Co ltd
Priority date: 2021-12-27
Filing date: 2021-12-27
Publication date: 2022-06-17
Anticipated expiration: 2031-12-27

Abstract

The utility model discloses a furnace-passing jig for secondary reflow soldering of an FPC (flexible printed circuit), which comprises a bottom plate, wherein a plurality of pressing plates are arranged on the bottom plate, a cover plate is arranged on the plurality of pressing plates, and the edge of the cover plate is exposed out of a region to be soldered. According to the utility model, the pressing plate is arranged on the bottom plate, and the cover plate is arranged on the pressing plate, so that components which are subjected to soldering tin treatment on the FPC can be covered, only the components which need soldering tin on the FPC are exposed, the melting influence of high temperature in a soldering tin furnace on soldered tin points is reduced, poor soldering such as insufficient soldering, empty soldering, solder overflow and the like at the soldered tin points is avoided or reduced, and the yield of the FPC after secondary soldering tin furnace passing is improved; through set up third recess and magnetic part on the bottom plate, can be with the clamp plate adsorb together with the bottom plate fast accurately, ensure to fix FPC accurately on the bottom plate, ensure the soldering tin precision of secondary soldering tin.

Description

A cross stove tool for FPC secondary reflow soldering

Technical Field

The utility model relates to the technical field of reflow oven passing jigs, in particular to a furnace passing jig for secondary reflow soldering of an FPC (flexible printed circuit).

Background

In the production process of a complex Flexible Printed Circuit (FPC), secondary reflow soldering treatment is often needed, namely the FPC with components and parts welded is put into a reflow oven again to weld other components and parts, but in the secondary oven-passing operation process, solidified tin points between the components and parts welded at the previous time and the circuit board are easily melted at high temperature, poor welding such as insufficient soldering, empty soldering, tin overflow and the like is caused, and the quality and the service life of a product are influenced.

SUMMERY OF THE UTILITY MODEL

Aiming at the problems in the prior art, the utility model provides a furnace-passing jig for FPC secondary reflow soldering, which can reduce the melting influence of high temperature in a soldering furnace on soldered tin points, avoid or reduce poor soldering such as insufficient soldering, empty soldering, tin overflow and the like at the soldered tin points, and ensure the soldering accuracy of secondary soldering.

In order to solve the technical problems, the utility model adopts a technical scheme as follows:

a furnace-passing jig for secondary reflow soldering of an FPC is characterized by comprising a bottom plate, wherein a placing area is formed at the upper end part of the bottom plate, and a plurality of first positioning pieces matched with the FPC are arranged in the placing area; more than one avoidance area matched with the components on the FPC are arranged beside the placing area, and a plurality of second positioning pieces matched with the components are arranged in each avoidance area; a pressing area is arranged between the placing area and each avoiding area, more than one third positioning piece is arranged in each pressing area, a pressing plate is arranged on each pressing area, and the pressing plates can be matched with the bottom plate to press the FPC on the bottom plate; the upper end parts of the pressing plates are provided with a cover plate, the outline edge of the cover plate does not cover the avoidance area, and the cover plate is detachably and fixedly connected with the bottom plate.

As a further elaboration of the above technical solution:

in the above technical solution, each of the pressing and fixing regions on the bottom plate is provided with more than one fourth positioning hole groove, and each of the fourth positioning hole grooves is provided with a first magnetic member therein; each pressing plate is internally provided with a plurality of second magnetic parts, and each first magnetic part can adsorb the second magnetic parts so as to adsorb one pressing plate to one pressing area.

In the technical scheme, the bottom plate is provided with a plurality of first grooves matched with the FPC in the placing area, and each avoidance area is provided with more than one second groove matched with a component; and a plurality of tin melting tanks are arranged on the side wall of each second groove.

In the above technical scheme, the bottom plate is provided with a plurality of fifth positioning parts, and the cover plate is provided with a plurality of sixth positioning parts adapted to the fifth positioning parts one by one.

In the above technical solution, each of the pressing plates is provided with a seventh positioning element adapted to the third positioning element.

In the above technical solution, each bottom plate is provided with a third groove adapted to the pressing plate in each pressing area.

In the above technical scheme, the lower end of the bottom plate is provided with more than one limiting slide way.

Compared with the prior art, the utility model has the beneficial effects that: the pressing plate is arranged on the bottom plate, the cover plate is arranged on the pressing plate, so that components which are subjected to soldering tin treatment on the FPC can be covered, only the components which need soldering tin on the FPC are exposed, the melting influence of high temperature in a soldering furnace on soldered tin points is reduced, poor soldering such as insufficient soldering, empty soldering, solder overflow and the like at the soldered tin points is avoided or reduced, and the yield of the FPC after secondary soldering furnace passing is improved; through set up third recess and magnetic part on the bottom plate, can be with the clamp plate accurately fast with the bottom plate adsorb together, ensure to fix FPC accurately on the bottom plate, ensure the soldering tin precision of secondary soldering tin.

Drawings

FIG. 1 is a schematic view of an exploded structure of the present invention;

FIG. 2 is a schematic top view of the bottom plate in the present embodiment;

FIG. 3 is a schematic bottom view of the bottom plate of the present embodiment;

FIG. 4 is a schematic structural view of a platen in the present embodiment;

fig. 5 is a schematic structural diagram of the cover plate in the present embodiment.

In the figure: 10. a base plate; 11. a first positioning member; 12. a second positioning member; 13. a third positioning member; 14. a fourth positioning hole groove; 15. a first groove; 16. a second groove; 17. a tin melting tank; 18. a fifth positioning member; 19. a third groove; 20. pressing a plate; 21. a seventh positioning member; 22. a second magnetic member; 30. a cover plate; 31. a sixth positioning member; 40. a first magnetic member; 50. and a limiting slide way.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings.

The embodiments described by referring to the drawings are exemplary and intended to be used for explaining the present application and are not to be construed as limiting the present application. In the description of the present application, it is to be understood that the terms "center," "longitudinal," "lateral," "length," "width," "thickness," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," and the like are used in the orientations and positional relationships indicated in the drawings for convenience in describing the present application and for simplicity in description, and are not intended to indicate or imply that the referenced devices or elements must have a particular orientation, be constructed in a particular orientation, and be operated in a particular manner, and thus should not be considered limiting. Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present application, "a plurality" means two or more unless specifically limited otherwise. In this application, unless expressly stated or limited otherwise, the terms "mounted," "connected," "secured," and the like are to be construed broadly and encompass, for example, both fixed and removable connections or integral connections; can be mechanically or electrically connected; they may be connected directly or indirectly through intervening media, or they may be interconnected between two elements. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate. In this application, unless expressly stated or limited otherwise, the first feature "on" or "under" the second feature may comprise direct contact of the first and second features, or may comprise contact of the first and second features not directly but through another feature in between. Also, the first feature being "on," "above" and "over" the second feature includes the first feature being directly on and obliquely above the second feature, or merely indicating that the first feature is at a higher level than the second feature. The first feature being "under," "beneath," and "under" the second feature includes the first feature being directly above and obliquely above the second feature, or simply meaning that the first feature is at a lesser level than the second feature.

As shown in fig. 1-5, a furnace-passing jig for secondary reflow soldering of an FPC comprises a bottom plate 10, wherein a placing area is formed at the upper end of the bottom plate 10, and a plurality of first positioning pieces 11 adapted to the FPC are arranged in the placing area; more than one avoidance areas matched with the components on the FPC are arranged beside the placing areas, and a plurality of second positioning pieces 12 matched with the components are arranged in each avoidance area; a pressing area is arranged between the placing area and each avoiding area, more than one third positioning piece 13 is arranged in each pressing area, a pressing plate 20 is arranged on each pressing area, and the pressing plates 20 can be matched with the bottom plate 10 to press the FPC on the bottom plate 10; the upper ends of the pressing plates 20 are provided with a cover plate 30, the outline edge of the cover plate 30 is not covered with an avoiding area, and the cover plate 30 is detachably and fixedly connected with the bottom plate 10.

Furthermore, more than one fourth positioning hole groove 14 is formed in each pressing and fixing area on the bottom plate 10, and a first magnetic part 40 is arranged in each fourth positioning hole groove 14; each pressing plate 20 is internally provided with a plurality of second magnetic parts 22, and each first magnetic part 40 can adsorb the second magnetic parts 22 to adsorb one pressing plate 20 in a pressing and fixing area.

Furthermore, a plurality of first grooves 15 matched with the FPC are formed in the placing area on the bottom plate 10, and more than one second groove 16 matched with the component is formed in each avoidance area; the side wall of each second groove 16 is provided with a plurality of tin melting tanks 17.

Further, a plurality of fifth positioning members 18 are disposed on the bottom plate 10, and a plurality of sixth positioning members 31 adapted to the fifth positioning members 18 one by one are disposed on the cover plate 30.

Furthermore, each pressing plate 20 is provided with a seventh positioning element 21 adapted to the third positioning element 13.

Further, each bottom plate 10 is provided with a third groove 19 adapted to the pressing plate 20 at each pressing area.

Further, the lower end of the bottom plate 10 is provided with more than one limiting slide way 50.

During operation, the limiting slide way 50 can be matched and placed on a positioning base in the soldering tin furnace, so that quick positioning is facilitated. In this embodiment, spacing slide 50 and bottom plate 10 are integrated into one piece structure, and the both ends of spacing slide 50 all are equipped with the V-arrangement oblique angle, the laying of the tool of being convenient for, the simple operation.

The working process of the utility model is as follows:

placing the FPC welded with the components in the placing area, placing the components in the second groove 16, placing the positioning structure on the FPC into alignment with the first positioning piece 11 in the placing area, and placing the positioning structure on the components into alignment with the second positioning piece 12, wherein at the moment, the soldering positions on the components are matched with the soldering tin grooves 17 one by one; after the positioning, the seventh positioning element 21 on the pressing plate 20 is aligned with the third positioning element 13, the pressing plates 20 are placed into the third groove 19 one by one, the second magnetic element 22 in the pressing plate 20 is absorbed by the first magnetic element 40, and the FPC is pressed and fixed on the bottom plate 10; and finally, aligning the sixth positioning piece 31 with the fifth positioning piece, changing the cover plate 30 onto the pressing plate 20 and the FPC, and pushing the jig into the soldering tin furnace along the limiting slide way 50 for fixing.

According to the utility model, the pressing plate 20 is arranged on the bottom plate 10, and the cover plate 30 is arranged on the pressing plate 20, so that components which are subjected to soldering treatment on the FPC can be covered, only the components which need soldering on the FPC are exposed, the melting influence of high temperature in a soldering furnace on soldered tin points is reduced, poor soldering such as insufficient soldering, empty soldering, solder overflow and the like at the soldered tin points is avoided or reduced, and the yield of the FPC after secondary soldering is improved; through set up third recess 19 and magnetic part 40 on bottom plate 10, can adsorb clamp plate 20 together with bottom plate 10 fast accurately, ensure to fix FPC accurately on bottom plate 10, ensure the soldering tin precision of secondary soldering tin.

The technical scope of the present invention is not limited to the above embodiments, and any modifications, equivalent variations and modifications made to the above embodiments according to the technical spirit of the present invention still fall within the technical scope of the present invention.

Claims

1. A furnace-passing jig for secondary reflow soldering of an FPC is characterized by comprising a bottom plate, wherein a placing area is formed at the upper end part of the bottom plate, and a plurality of first positioning pieces matched with the FPC are arranged in the placing area; more than one avoidance area matched with the components on the FPC are arranged beside the placing area, and a plurality of second positioning pieces matched with the components are arranged in each avoidance area; a pressing area is arranged between the placing area and each avoiding area, more than one third positioning piece is arranged in each pressing area, a pressing plate is arranged on each pressing area, and the pressing plates can be matched with the bottom plate to press the FPC on the bottom plate; the upper end parts of the pressing plates are provided with a cover plate, the outline edge of the cover plate does not cover the avoidance area, and the cover plate is detachably and fixedly connected with the bottom plate.

2. The oven jig for the secondary reflow soldering of the FPC as recited in claim 1, wherein more than one fourth positioning hole slot is formed in each of the pressing areas on the bottom plate, and a first magnetic member is disposed in each of the fourth positioning hole slots; each pressing plate is internally provided with a plurality of second magnetic parts, and each first magnetic part can adsorb the second magnetic parts so as to adsorb one pressing plate on one pressing area.

3. The oven jig for the secondary reflow soldering of the FPC as recited in claim 1, wherein a plurality of first grooves adapted to the FPC are formed in the placing area on the bottom plate, and more than one second groove adapted to components is formed in each avoiding area; and a plurality of tin melting tanks are arranged on the side wall of each second groove.

4. The furnace jig for the secondary reflow soldering of the FPC as recited in claim 1, wherein a plurality of fifth positioning elements are disposed on the bottom plate, and a plurality of sixth positioning elements adapted to the fifth positioning elements one by one are disposed on the cover plate.

5. The furnace jig for the secondary reflow soldering of the FPC as recited in claim 1, wherein a seventh positioning element adapted to the third positioning element is disposed on each of the pressing plates.

6. The furnace jig for the secondary reflow soldering of the FPC as recited in claim 1, wherein a third groove adapted to the pressing plate is disposed on each of the pressing areas on each of the bottom plates.

7. The furnace jig for the secondary reflow soldering of the FPC according to any one of claims 1-6, wherein the lower end of the bottom plate is provided with more than one limiting slide way.