CN211630532U

CN211630532U - FPC brush tin tool

Info

Publication number: CN211630532U
Application number: CN202020427855.3U
Authority: CN
Inventors: 马长进
Original assignee: Acc Precision Electronic Shuyang Co ltd; AAC Technologies Holdings Shuyang Co Ltd
Current assignee: Acc Precision Electronic Shuyang Co ltd; AAC Technologies Holdings Shuyang Co Ltd
Priority date: 2020-03-27
Filing date: 2020-03-27
Publication date: 2020-10-02
Anticipated expiration: 2030-03-27
Also published as: WO2021189534A1

Abstract

The utility model provides a FPC brushes tin tool for FPC, FPC include the circuit board and set up in the pad portion of circuit board, brush tin tool is including supporting the frock, it includes bottom surface and support to support the frock FPC's holding surface, the bottom surface with the holding surface sets up relatively, the holding surface court the sunken at least two grooves of dodging that form of bottom surface direction, dodge the mutual interval setting in groove, pad portion is in it is adjacent two to support the orthographic projection on the frock dodge between the groove, support the frock and still including protruding locating the holding surface and with pad portion is just right and corresponding the support boss of pad portion. The utility model discloses a surface at the support frock sets up the support boss that is used for supporting pad portion to can be when brushing tin, the pad closely laminates with the support boss, and the tin cream evenly falls to the pad in the steel mesh on, solved current tool and produced the excessive problem of tin cream whereabouts easily when brushing tin.

Description

FPC brush tin tool

Technical Field

The utility model belongs to the technical field of FPC processing, especially, relate to a FPC brushes tin tool.

Background

The Printing of solder paste is an important process in the subsequent processing of a Flexible Printed Circuit (FPC), and the Printing quality of the solder paste affects the subsequent tin spreading and soldering effects.

When brushing tin operation to FPC, need use the frock piece of support usefulness usually, frock piece often can set up the recess in order to dodge the surperficial components and parts of FPC or reinforcement structure, and FPC brushes the influence that often receives frock surface recess when tin forms the pad, and the steel mesh can not closely laminate with FPC and frock when leading to brushing tin, has the too much phenomenon of tin volume whereabouts, consumes the big and easy FPC's that influences of tin volume.

Therefore, the prior art has yet to be developed.

SUMMERY OF THE UTILITY MODEL

The utility model aims to solve the technical problem that a FPC brushes tin tool is provided, aim at solving current FPC brushes tin tool printing solder paste and have the too much problem of tin volume whereabouts.

For solving the technical problem, the utility model discloses a realize like this, a FPC brushes tin tool for FPC, FPC includes the circuit board and set up in the pad portion of circuit board, it includes the support frock to brush tin tool, support the frock and include bottom surface and support FPC's holding surface, the bottom surface with the holding surface sets up relatively, the holding surface court the sunken at least two grooves of dodging that form of bottom surface direction, dodge the mutual interval setting in groove, pad portion is in support orthographic projection on the frock is located adjacent two dodge between the groove, support the frock still including protruding locating the holding surface and with pad portion just supports to corresponding the support boss of pad portion.

Further, an orthographic projection area of the support boss on the support surface is larger than an orthographic projection area of the pad portion on the support surface.

Further, the minimum distance between the orthographic projection of the pad part on the supporting surface and the adjacent avoidance groove is smaller than or equal to 3 mm.

Further, FPC still includes protruding the establishing and be fixed in the reinforcement portion of circuit board, reinforcement portion is in the orthographic projection of bottom surface falls into in the dodging the groove.

Further, the tin brushing jig further comprises a tin leakage steel mesh which is matched with the supporting tool to clamp the FPC, and the tin leakage steel mesh is provided with a tin leakage opening portion which is used for enabling the welding pad portion to abut against the supporting boss.

Further, the holding surface supports a plurality of FPC, it is a plurality of FPC is in array arrangement is single on the holding surface the reinforcement portion is including first reinforcement portion and the second reinforcement portion that the mutual interval set up, dodge the groove including respectively with the first groove of dodging that first reinforcement portion corresponds and with the just right second of second reinforcement portion dodges the groove, pad portion is in support orthographic projection on the frock is located first dodge the groove with the second dodges between the groove.

Further, the first avoidance groove is strip-shaped and corresponds to at least two first reinforcing parts, at least two first reinforcing parts are arranged in parallel along the length direction of the first avoidance groove.

Further, the second dodges the groove and is the strip and corresponds at least two the second reinforcement portion, at least two the second reinforcement portion is followed the length direction parallel arrangement in groove is dodged to the second.

Compared with the prior art, the utility model, beneficial effect lies in: the utility model discloses a FPC brushes tin tool sets up the support boss that is used for supporting pad portion including supporting the frock through the surface that supports the frock to can be when brushing tin, the pad closely laminates with the support boss, and the tin cream evenly falls to the pad in following the steel mesh on, solved current tool and produced the excessive problem of tin cream whereabouts easily when brushing tin.

Drawings

Fig. 1 is a top view structure diagram of a FPC to which the FPC tin brushing jig of the present invention is applied.

Fig. 2 is a front view of a supporting tool of a FPC tin brushing jig provided by an embodiment of the present invention.

Fig. 3 is a sectional view taken along line a-a of the support tool shown in fig. 2.

Fig. 4 is the supporting tool cooperation schematic diagram of the FPC shown in fig. 1 and the FPC tin brushing jig of the present invention.

Fig. 5 is a cross-sectional view of the assembled structure of fig. 4 taken along line B-B.

Fig. 6 is a structural diagram of a tin-leaking steel mesh of a FPC tin brushing jig provided by the embodiment of the present invention.

Fig. 7 is a structural diagram of a supporting tool of a FPC combined tin brushing jig according to an embodiment of the present invention.

Fig. 8 is a schematic view of the tin brushing jig of fig. 7 being matched with the FPC during the plate-connection tin brushing.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail with reference to the following embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the invention and are not intended to limit the invention.

The utility model provides a pair of FPC brushes tin tool is applied to FPC's pad printing, and FPC 1's structure is as shown in fig. 1, including circuit board 11 and set up pad portion 12 on circuit board 11, pad portion 12 can set up 1 or more than 2. The tin brushing jig comprises a supporting tool 2, as shown in fig. 2 and fig. 3, the supporting tool 2 comprises a bottom surface 21 and a supporting surface 22 for supporting the FPC 1, the bottom surface 21 and the supporting surface 22 are arranged oppositely, the supporting surface 22 is recessed towards the bottom surface 21 to form at least two avoiding grooves 23, the avoiding grooves 23 are arranged at intervals, the orthographic projection of the pad part 12 on the supporting tool 2 is positioned between two adjacent avoiding grooves 23 (in the FPC interconnection scheme, the lower pad part 12 is also positioned between two adjacent avoiding grooves 23, refer to fig. 7 and fig. 8), the supporting tool 3 further comprises a supporting boss 24 which is convexly arranged on the supporting surface 22, is opposite to the pad part 12 and corresponds to the supporting pad part 12, preferably, the area of the supporting boss 24 is larger than the orthographic projection area of the pad part 12 on the supporting surface 22, and the whole pad part 12 can be sufficiently and effectively supported during tin brushing. Fig. 4 shows an assembly of the FPC placed on the support fixture 2.

The utility model discloses a FPC brushes tin tool sets up the support boss that is used for supporting pad portion including supporting the frock through the surface that supports the frock to can be when brushing tin, the pad closely laminates with the support boss, and the tin cream evenly falls to the pad in following the steel mesh on, solved current tool and produced the excessive problem of tin cream whereabouts easily when brushing tin.

Further, the utility model discloses a FPC brushes tin tool especially is fit for brushing the condition that has the reinforcement before the tin on the FPC, as shown in fig. 1 and fig. 5, FPC 1 still includes protruding reinforcement portion 13A and/or 13B of establishing and being fixed in

circuit board

11, and 13A and 13B can be located FPC 1's the same side, also can be located FPC 1's different faces, the utility model discloses be located FPC 1's different faces to 13A and 13B, it is especially obvious to improve the effect. The orthographic projections of the reinforcing

portions

13A and 13B on the bottom surface 21 fall into the avoiding groove 23. When brushing tin, during the groove 23 of dodging was acceptd into to the reinforcement portion, eliminated the step that the reinforcement portion produced, pad portion 12 and support boss 24 closely laminate simultaneously, on the even whereabouts of tin cream from the steel mesh to the pad, solved the reinforcement portion step and leaded to the excessive problem of tin cream whereabouts, especially, when pad portion at the orthographic projection of holding surface 22 and adjacent minimum distance less than or equal to 3mm of dodging between the groove 23, the utility model discloses can obviously improve the yield of brushing tin.

Further, the utility model discloses a brush tin tool still includes and supports 2 cooperation centre gripping FPC 1's of frock hourglass tin steel mesh 3, as shown in fig. 6, leaks tin steel mesh 3 and is equipped with and is used for leaking tin opening 31 supporting 24 with pad portion butt, and the area of leaking tin opening 31 matches with pad portion area, or slightly is less than the area of pad portion.

Further, to FPC antithetical couplet version processing, the utility model discloses an use as shown in fig. 7 and fig. 8, support the holding surface 22 of frock 2 and support a plurality of FPC 1, a plurality of FPC 1 are arranged in an array on holding surface 22, single FPC includes first reinforcement portion 13A and second reinforcement portion 13B, support and dodge groove 23 on the frock 2 and include respectively with the first groove 23A of dodging that dodges that first reinforcement portion 13A corresponds, and dodge groove 23B with the just right second of second reinforcement portion 13B, at least two first reinforcement portions 13A are along the first length direction parallel arrangement who dodges groove 23A, at least two second reinforcement portions 13B are along the second length direction parallel arrangement who dodges groove 23B, fig. 8 uses 3 as an example. The orthographic projection of the pad part 12 on the support tool 2 is located between the first avoidance groove 23A and the second avoidance groove 23B.

It should be understood that the above-described embodiments are exemplary and should not be construed as limiting the present invention, and that those skilled in the art can make changes, modifications, substitutions and alterations to the above-described embodiments without departing from the scope of the present invention, which should be construed as being encompassed by the present invention.

Claims

1. The utility model provides a FPC brush tin tool, is used for FPC, FPC include the circuit board and set up in the pad portion of circuit board, its characterized in that, brush tin tool is including supporting the frock, it includes the bottom surface and supports to support the frock FPC's holding surface, the bottom surface with the holding surface sets up relatively, the holding surface court the sunken at least two grooves of dodging that form of bottom surface direction, dodge the groove and set up each other at an interval, pad portion is in it is adjacent two to support orthographic projection on the frock dodge between the groove, support the frock still including protruding locating the holding surface and with pad portion is just right and correspond the support boss of pad portion.

2. The FPC tin brushing jig according to claim 1, wherein an orthographic projection area of the support boss on the support surface is larger than an orthographic projection area of the pad portion on the support surface.

3. The FPC tin brushing jig according to claim 1, wherein a minimum distance between an orthographic projection of the pad portion on the supporting surface and the adjacent avoidance groove is less than or equal to 3 mm.

4. The FPC tin brushing jig according to claim 1, wherein the FPC further comprises a reinforcing portion protruding and fixed to the circuit board, and an orthographic projection of the reinforcing portion on the bottom surface falls into the avoiding groove.

5. The FPC tin brushing jig according to claim 1, further comprising a tin leakage steel mesh cooperating with the supporting tool to clamp the FPC, wherein the tin leakage steel mesh is provided with a tin leakage opening portion for abutting the pad portion against the supporting boss.

6. The FPC tin brushing jig according to claim 4, wherein the supporting surface supports a plurality of FPCs, the plurality of FPCs are arrayed on the supporting surface, the single reinforcing portion of the FPC comprises a first reinforcing portion and a second reinforcing portion which are arranged at an interval, the avoiding groove comprises a first avoiding groove corresponding to the first reinforcing portion and a second avoiding groove opposite to the second reinforcing portion, and a front projection of the pad portion on the supporting tool is located between the first avoiding groove and the second avoiding groove.

7. The FPC soldering jig according to claim 6, wherein the first avoiding groove is strip-shaped and corresponds to at least two of the first reinforcing portions, and the at least two first reinforcing portions are disposed in parallel along a length direction of the first avoiding groove.

8. The FPC soldering jig according to claim 7, wherein the second avoiding groove is strip-shaped and corresponds to at least two of the second reinforcing portions, and the at least two second reinforcing portions are disposed in parallel along a length direction of the second avoiding groove.