CN218050734U

CN218050734U - FPC welding smelting tool and welding system

Info

Publication number: CN218050734U
Application number: CN202220901870.6U
Authority: CN
Inventors: 杜黎阳; 王玉兴; 周元久
Original assignee: Shenzhen Zhilian Kexun Technology Co ltd
Current assignee: Shenzhen Zhilian Kexun Technology Co ltd
Priority date: 2022-04-19
Filing date: 2022-04-19
Publication date: 2022-12-16
Anticipated expiration: 2032-04-19

Abstract

The embodiment of the utility model discloses FPC welding smelting tool and welding system. This welding smelting tool includes: the fixed base is used for placing the FPC circuit board; the fixing pressing block is used for fixing the FPC circuit board on the top of the fixing base; and the pressing block buckle is used for fixing the fixed pressing block on the top of the fixed base. The embodiment of the utility model provides a FPC welding jig can be applicable to the FPC circuit board of different models, need not to use with the welding equipment of specialty is supporting, can satisfy small batch production or research and development sample, and the cost is reduced has promoted efficiency.

Description

FPC welding smelting tool and welding system

Technical Field

The utility model relates to a flexible circuit board processing technology field especially relates to a FPC welding smelting tool and welding system.

Background

FPC (Flexible Printed Circuit), also called Flexible Circuit board or Flexible Circuit board, is preferred because of its excellent characteristics such as light weight, thin thickness, and free bending and folding. With the rapid development of the electronic industry, the design of the circuit board tends to be higher and higher in precision and density, the traditional manual detection method cannot meet the production requirement, and the circuit board can be bent at will, is light in weight, small in size, good in heat dissipation and convenient to install, and breaks through the traditional interconnection technology. Nowadays, the connecting device is widely applied to the connection between the printing head and the main board of various printers, such as the signal transmission and board connection of products such as Bluetooth earphones, plotters, scanners, copiers, audios, liquid crystal electric appliances, fax machines, various video players, notebook computers, mobile phones and the like. In modern electrical equipment, it is almost ubiquitous. In the manufacturing and production process of FPC or FPCBA (formed by connecting electronic components on FPC), due to the use scene of products or the design requirements of the products, one FPC needs to be bent for 360 degrees and then is overlapped and welded together, and an annular structure is manufactured in a welding and sending mode; or two FPCBAs are required to be welded in a butt-lap mode once, so that the purpose of connecting or communicating the two FPCBAs is achieved.

At present, the welding process needs to be finished, special hot-pressing equipment needs to be purchased usually, the manufacturing can be finished only by matching special jigs, the production cost is increased to a great extent in the manufacturing process, the operation which can not be finished quickly and only needs a small amount of materials needs to be entrusted, and the production and the work are wasted, such as great production cost, time cost, labor cost and the like.

SUMMERY OF THE UTILITY MODEL

In view of this, the embodiment of the utility model provides a FPC welding smelting tool and welding system need not to use with dedicated welding equipment is supporting, is applicable to the small-scale production, has reduced the research and development cost, has promoted research and development efficiency.

In a first aspect, an embodiment of the present invention provides a FPC welding jig, include:

the fixed base is used for placing the FPC circuit board;

the fixing pressing block is used for fixing the FPC circuit board on the top of the fixing base;

and the pressing block buckle is used for fixing the fixed pressing block on the top of the fixed base.

Optionally, in some embodiments:

the fixed pressing block is in a square strip shape, and the fixed pressing block is attached to the top plane of the fixed base.

Optionally, in some embodiments:

the fixed pressing block is in a round bar shape, an arc groove is formed in the top of the fixed base, and the fixed pressing block is attached to the surface of the arc groove.

Optionally, in some embodiments:

and a spring screw is arranged in the pressing block buckle and used for pressing the fixed pressing block downwards.

Optionally, in some embodiments:

the fixed base and the fixed pressing block are made of heat-resistant and temperature-conductive materials.

In a second aspect, the embodiment of the present invention provides a FPC welding system, including:

the steel mesh comprises a registration hole for registering with a bonding pad on the FPC board;

the welding jig comprises a fixed base for fixing the FPC circuit board, a fixed pressing block and a pressing block buckle;

a hot welding module comprising a heating platform for heating the welding tool.

Optionally, in some embodiments, the thermal welding module comprises:

the temperature monitoring module is used for being connected with the welding jig and detecting the heating temperature of the welding jig.

Optionally, in some embodiments, the method further includes:

and the high-temperature-resistant adhesive tape is used for fixedly connecting the two FPC boards.

The third aspect, the embodiment of the utility model provides a still provides a FPC welding method, based on the utility model discloses FPC welding system who any embodiment provides realizes, include:

placing the FPC circuit board under the steel mesh so as to align a bonding pad on the FPC circuit board with the alignment hole;

applying and curing solder paste to the bonding pad;

the FPC circuit boards are fixed through the welding jig after being overlapped;

and fixing the welding jig to the hot welding module to heat and weld the overlapped FPC circuit board.

Optionally, in some embodiments, the fixing, by the soldering jig, after the FPC boards are stacked includes:

superposing and overlapping the FPC boards and fixing the FPC boards by using a high-temperature-resistant adhesive tape;

and placing the fixed FPC circuit board between the fixed base and the fixed pressing block for pressing.

The embodiment of the utility model provides a FPC welding smelting tool, including unable adjustment base, fixed briquetting and briquetting bayonet socket, place the FPC circuit board on unable adjustment base, be fixed in the unable adjustment base top with the mode of pressing down with the FPC circuit board through fixed briquetting, fasten through the briquetting buckle again, so that fixed briquetting is fixed in the unable adjustment base top, this welding smelting tool can be applicable to the FPC circuit board of different models, need not to use with the supporting welding equipment of specialty, can satisfy small batch production or research and development sample, the cost is reduced, the efficiency is promoted.

Drawings

Fig. 1 is a schematic structural diagram of a FPC welding jig according to a first embodiment of the present invention;

fig. 2 is a schematic structural diagram of another FPC welding jig according to a first embodiment of the present invention;

fig. 3 is a schematic structural diagram of an FPC welding system according to a second embodiment of the present invention;

FIG. 4 is a schematic view of a steel net according to a second embodiment of the present invention;

fig. 5 is a flow chart of a FPC welding method according to a third embodiment of the present invention;

fig. 6 is a sub-flowchart of an FPC welding method according to a third embodiment of the present invention.

Detailed Description

The present invention will be described in further detail with reference to the accompanying drawings and examples. It is to be understood that the specific embodiments described herein are merely illustrative of the invention and are not to be construed as limiting the invention. It should be further noted that, for the convenience of description, only some of the structures related to the present invention are shown in the drawings, not all of the structures.

Unless defined otherwise, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs. The terminology used in the description of the invention herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items. In the description of the present invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise.

Furthermore, the terms "first," "second," and the like may be used herein to describe various orientations, actions, steps, elements, or the like, but the orientations, actions, steps, or elements are not limited by these terms. These terms are only used to distinguish one direction, action, step or element from another direction, action, step or element. For example, the first connection end may be referred to as a second connection end, and similarly, the second connection end may be referred to as a first connection end, without departing from the scope of the present invention. The first connection end and the second connection end are both connection ends, but they are not the same connection end, specifically, they may be an input end, another one is an output end, or both of them may be input/output ends. The terms "first", "second", etc. 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 invention, "a plurality" means at least two, e.g., two, three, etc., unless specifically limited otherwise. It should be noted that when a portion is referred to as being "secured to" another portion, it can be directly on the other portion or there can be an intervening portion. When a portion is said to be "connected" to another portion, it may be directly connected to the other portion or intervening portions may be present. As used herein, the terms "vertical," "horizontal," "left," "right," and the like are for purposes of illustration only and are not intended to represent the only embodiments.

Example one

The embodiment of the utility model provides a FPC welding jig 10 is provided, can be used for right, specific, as shown in fig. 1, FPC welding jig 10 that this embodiment provided includes:

and a fixing base 11 for placing the FPC board 00.

The fixing base 11 is a platform for bearing the circuit board 00, and the surface of the fixing base 11 is at least provided with a flat area so that the FPC circuit board 00 can be flatly unfolded on the surface of the fixing base 11, and therefore the FPC circuit board 00 to be welded can be stably overlapped on the fixing base 11.

And the fixing pressing block 12 is used for fixing the FPC board 00 on the top of the fixing base 11.

The fixing pressing block 12 is arranged at the top of the fixing base 11, and is fixed and separated from the fixing base 11, when the fixing pressing block and the fixing base are in a separated state, the FPC board 00 to be welded can be placed between the fixing pressing block 12 and the fixing base 11, and then the fixing pressing block and the fixing base are fixed, so that the FPC board 00 to be welded is pressed at the top of the fixing base 11 by the fixing pressing block 12.

And the pressing block buckle 13 is used for fixing the fixed pressing block 12 on the top of the fixed base 11.

The pressing block buckle 13 is used for fixing and separating the fixed base 11 and the fixed pressing block 12: the press block buckle 13 has a downward clamping capability, and can apply force to the fixing press block 12 to enable the fixing press block 12 to be pressed on the top surface of the fixing base 11 under force, and when the press block buckle 13 is loosened, the fixing press block 12 is not stressed, and then the fixing press block 12 can be separated from the surface of the fixing base 11.

In some specific examples, the downward clamping ability of the pressing block buckle 13 can be realized by different structures, such as downward pressure realized by the torsion force of a torsion spring, and downward pressure realized by the elastic force of a spring screw, which is not illustrated herein. Considering the convenient fixing and separation of the fixed pressing block 12, in this embodiment, a spring screw is preferably adopted, that is, a spring screw is arranged in the pressing block bayonet 13 and is used for pressing the fixed pressing block 12 downwards, specifically referring to fig. 1, in this embodiment, two ends of the fixed pressing block 12 are respectively provided with one pressing block buckle 13 to ensure the balanced stress of the FPC circuit board 00 on the fixed base 11, in some alternative embodiments, one end of the fixed pressing block 12 can be fixed on the fixed base 11 through a rotating shaft, and the other end of the fixed pressing block 12 is provided with the pressing block bayonet 13, so that the operation of the user during welding can be simplified to a certain extent, but the FPC circuit board 00 may be stressed unevenly and is set automatically according to the actual requirements.

It should be noted that the number of the fixed pressing blocks 12 and the pressing block fasteners 13 can be adjusted according to actual situations, for example, the area occupied by the pad of a certain FPC board 00 is large, and a fixed pressing block 12 is difficult to be completely compressed, so that the fixed pressing block 12 and the corresponding pressing block fastener 13 can be added, and at this time, a structure for adding the pressing block fasteners 13, for example, a threaded hole for fixing a spring screw, needs to be reserved on the FPC welding jig 10.

More specifically, in some embodiments, the specific structure of the FPC soldering jig 10 is further explained and illustrated: the design of the FPC welding jig 10 is related to the specific welding requirements of the FPC circuit board 00, and the structures of the fixing base 11, the fixing press block 12 and the press block buckle 13 are also different for different welding requirements, taking the fixing press block 12 as an example, for the plane overlay welding requirements, as shown in fig. 1, the fixing press block 12 is Fang Tiaoxing, and the fixing press block 12 is attached to the top plane of the fixing base 11; aiming at the arc butt-lap welding requirement, as shown in fig. 2, the fixed pressing block 12 is in a circular strip shape, an arc groove is formed in the top of the fixed base 11, and the fixed pressing block 12 is attached to the surface of the arc groove.

In some embodiments, in consideration of the heating requirement of the welding tool 10, it is preferable that the fixing base 11 and the fixing press block 12 are made of a heat-resistant and temperature-conductive material to ensure the heat conduction efficiency thereof and reduce the weight thereof.

This embodiment provides a FPC welding jig, which comprises a fixed pedestal, fixing pressing block and briquetting bayonet, place the FPC circuit board on fixing base, be fixed in the fixing base top with the mode of pressing the FPC circuit board through fixing pressing block, fasten through the briquetting buckle again, so that fixing pressing block is fixed in the fixing base top, this welding jig can be applicable to the FPC circuit board of different models, need not to use with the welding equipment of specialty is supporting, can satisfy small batch production or research and development sample, the cost is reduced, the efficiency is promoted.

Example two

The embodiment of the utility model provides a second provides a FPC welding system, and this system includes the utility model discloses the FPC welding smelting tool that any embodiment provided, it is concrete, the FPC welding system that this embodiment provided as shown in fig. 3 includes:

the steel net 20 includes an alignment hole 21 for aligning with the pad 01 on the FPC board 00.

As shown in fig. 4, the steel mesh 20 is used to align with the FPC board 00 to expose the pad area on the FPC board 00 and cover other areas, so as to achieve fast tin adding to the pad area, and avoid the inefficiency of manually adding tin in a little by a little.

Specifically, the steel mesh 20 is provided with the alignment hole 21, the position and the size of the alignment hole 21 are related to the position and the size of the pad 01 on the FPC board, and it should be ensured that after alignment, the alignment hole 21 just exposes the pad 01 (usually, the size of the alignment hole 21 is slightly larger than the pad 01 so as to avoid alignment failure caused by processing errors), so that solder paste can be printed on the pad 01 through the alignment hole 21, and the solder paste is heated and melted by using an air gun and is solidified and welded with the pad.

The welding jig 10 comprises a fixing base 11 for fixing the FPC board 00, a fixing pressing block 12 and a fixing buckle 13.

The welding jig 10 is used for fixing the FPC board 01 to be welded through the fixed base 11 and the fixed pressing block 12, for example, two FPC boards need to be welded, and after the two FPC boards are subjected to tinning, the two FPC boards are overlapped, and then are placed between the fixed base 11 and the fixed pressing block 12 and clamped and fixed through the pressing block buckle 13.

A hot welding module 30 comprising a heating platform for heating the welding tool.

Welding smelting tool 10 is used for placing and adds heat bonding through heating platform on heating platform: after the welding jig 10 is placed on the heating platform, the hot welding module 30 is heated up in operation, after the temperature and time required by welding are reached, the hot welding module 30 is closed, the welding jig 10 can be opened after the temperature of the welding jig 10 is naturally cooled to be below the melting point temperature of solder paste, and the solder paste on the FPC circuit board 00 is cooled to weld the FPC circuit board 00 together to complete the welding operation.

Optionally, in some embodiments, the FPC welding system further includes a temperature monitoring module, configured to be connected to the welding jig 10, and detect a heating temperature of the welding jig 10.

The temperature monitoring module usually employs a K-type thermocouple real-time temperature detector to accurately determine whether the temperature of the welding jig 10 reaches above the melting temperature of the solder paste and whether the temperature is subsequently cooled to below the melting temperature of the solder paste.

Optionally, in some embodiments, the FPC soldering system further includes a high temperature resistant adhesive tape for fixedly connecting the two FPC boards 00.

The high-temperature-resistant adhesive tape is used for replacing manual fixing of the FPC circuit board 00 to be welded, under normal conditions, a user needs to manually place the FPC circuit board 00 to be welded on the welding jig 10 to overlap the pad area, but the user needs to operate the welding jig 10 to fix the FPC circuit board 00 at the same time, the position of the FPC circuit board is very easy to move in the process, operation is inconvenient, the FPC circuit board is further fixed through the high-temperature-resistant adhesive tape after the pad area on the FPC circuit board 00 is manually overlapped, so that the position between the FPC circuit board 00 can not be changed, and the high-temperature-resistant adhesive tape can be torn down after welding is completed.

This embodiment provides a FPC welding system, can realize going up the tin fast to the pad on the FPC circuit board through the steel mesh, the FPC circuit board after the rethread welding smelting tool will fold the completion is fixed, the welding of FPC circuit board is realized to the welding smelting tool heating through the hot welding module at last, can be applicable to the FPC circuit board of different models, need not to use with the professional welding equipment is supporting, can satisfy small batch production or research and development sample, the cost is reduced, the efficiency is promoted.

EXAMPLE III

The embodiment of the utility model provides a third still provides a FPC welding method, it can be based on the utility model discloses FPC welding system that any embodiment provided realizes, as shown in fig. 5, and this method specifically includes:

s510, placing the FPC board 00 under the steel mesh 20 to align the bonding pad 01 on the FPC board 00 with the alignment hole 21.

And S520, coating solder paste on the bonding pad 01 and curing.

The steel mesh 20 is used for with FPC circuit board 00 align to expose the regional exposure of pad and cover other regions on FPC circuit board 00, with the realization to the regional quick tin that adds of pad, be provided with counterpoint hole 21 under the steel mesh 20, the position and the size of counterpoint hole 21 are relevant with the position and the size of pad 01 on the FPC circuit board, should guarantee after counterpoint, counterpoint hole 21 just exposes pad 01, just so can see through counterpoint hole 21 to pad 01 printing tin cream, and use the air gun heating to melt tin cream and pad solidification welding together.

S530, the FPC board 00 is folded and fixed through the welding jig 10.

The welding jig 10 is used for fixing the FPC board 01 to be welded through the fixing base 11 and the fixing pressing block 12, for example, two FPC boards need to be welded, after the two FPC boards are subjected to tinning, the two FPC boards are overlapped, and then the FPC boards are placed between the fixing base 11 and the fixing pressing block 12 and clamped and fixed through the pressing block buckle 13

S540, fixing the soldering jig 10 to the thermal soldering module 30 to heat-solder the stacked FPC boards 00.

Welding smelting tool 10 is used for placing and adds heat bonding through heating platform on heating platform: after the welding jig 10 is placed on the heating platform, the hot welding module 30 is heated up in operation, when the temperature and time required by welding are reached, the hot welding module 30 is closed, the welding jig 10 can be opened after the temperature of the welding jig 10 is naturally cooled to be below the melting point temperature of solder paste, and at the moment, the solder paste on the FPC board 00 is cooled to weld the FPC board 00 together to complete the welding operation.

Optionally, in some embodiments, the process of stacking the FPC boards 00 and then fixing the FPC boards 00 by the soldering jig 10, that is, step S530, as shown in fig. 6, includes steps S531 to S532:

and S531, overlapping the FPC board 00 and fixing the FPC board 00 by using a high-temperature-resistant adhesive tape.

S532, the fixed FPC board 00 is placed between the fixed base 11 and the fixed pressing block 12 to be pressed tightly.

The embodiment provides the FPC welding method, which can be suitable for FPC circuit boards of different models, does not need to be matched with professional welding equipment for use, can meet the requirements of small-batch production or sample research and development, reduces the cost and improves the efficiency.

In the description herein, references to the description of the term "present embodiment," "other embodiments," or the like, mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention. In this specification, the schematic representations of the terms used above do not necessarily refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples.

It should be noted that the foregoing is only a preferred embodiment of the present invention and the technical principles applied. It will be understood by those skilled in the art that the present invention is not limited to the particular embodiments described herein, but is capable of various obvious changes, rearrangements and substitutions as will now become apparent to those skilled in the art without departing from the scope of the invention. Therefore, although the present invention has been described in greater detail with reference to the above embodiments, the present invention is not limited to the above embodiments, and may include other equivalent embodiments without departing from the scope of the present invention.

Claims

1. The utility model provides a FPC welding smelting tool which characterized in that includes:

the fixed base is used for placing the FPC circuit board;

2. The welding tool of claim 1, wherein:

3. The welding tool of claim 1, wherein:

the fixed pressing block is in a circular strip shape, an arc groove is formed in the top of the fixed base, and the fixed pressing block is attached to the surface of the arc groove.

4. The welding tool of claim 1, wherein:

5. The welding tool of claim 1, wherein:

6. An FPC soldering system, comprising:

7. The FPC soldering system according to claim 6, wherein the thermal soldering module includes:

8. The FPC soldering system according to claim 6, further comprising: