CN206948733U - A kind of surface mount device for being used to produce LED flexible PCBs - Google Patents

Abstract

The utility model provide it is a kind of be used to producing the surface mount devices of LED flexible PCBs, including cover plate setting up and down and bottom plate, for by FPC fixed settings T-shaped latch on the cover board, the positioning hole, registration holes and the multiple bar shaped ventilating openings that are arranged on cover plate and the locating dowel being arranged on bottom plate and multiple bar shaped support blocks；The position of the positioning hole and locating dowel corresponds to and is connected up and down, the position of the ventilating opening and support block up and down correspond to and with the position correspondence of the pin to be welded of component on FPC, the upper surface of support block is provided with high temperature resistant silicon rubber cushion, the registration holes and the position correspondence of FPC spacing holes and the inwall of registration holes is provided with magnet, the T-shaped latch is ferronickel material and through FPC spacing holes and inserted from top to bottom in registration holes.Described device is simple in construction and is applied to the production and processing of flexible PCB, support and good fixing effect to FPC, also follow-up solder reflow operation will not be caused to hinder.

Description

A surface mount device for producing LED flexible circuit boards

technical field

The utility model relates to the technical field of semiconductor lamp production, in particular to a surface mounting device for producing LED flexible circuit boards.

Background technique

With the rapid development of LED technology applications, the market demand for LED lamps is increasing, and various unconventional lamps derived from this are becoming more and more popular, such as waterproof light strips, large light strips, etc. It not only It has excellent light spots and light effects, and is more versatile than traditional lamps. This is because the LED lamps of the light bar or light strip type use FPC (Flexible Printed Circui, flexible circuit board) as the light board, which has the advantages of high wiring density, light weight, thin thickness, and good bendability. Outdoor lighting needs to be boldly designed.

The production process of the above-mentioned lamps is as follows: First, apply solder paste on the blank FPC, then place LED lamps, capacitors and inductors and other components on the positions where the solder paste is applied, and then transfer the FPC to the reflow soldering equipment, through high temperature The solder paste is melted and cooled to solidify, so that each component is firmly soldered on the surface of the FPC. Due to the softness of the FPC itself, it cannot be placed flat, so the components are prone to unevenness, even deviation and fall off. In addition, the number of components on the light bar or light strip is difficult to be found. The product will inevitably have the defect of sticking deviation or desoldering dead lamp, which will affect the product quality and damage the company's interests.

Utility model content

The purpose of the utility model is to provide a mounting device with simple structure, suitable for processing flexible circuit boards and good welding effect of components, so as to solve the problems raised in the background technology.

A surface mount device for producing LED flexible circuit boards, including a cover plate and a bottom plate set up and down, a T-shaped pin for fixing the FPC on the cover plate, and a positioning device set on the cover plate Holes, alignment holes and a plurality of strip-shaped ventilation openings parallel to each other, as well as positioning columns arranged on the bottom plate and a plurality of strip-shaped support blocks parallel to each other; the positions of the positioning holes and the positioning columns correspond to and cooperate with each other connection, the position of the air vent and the support block corresponds up and down and corresponds to the position of the component to be welded on the FPC, the position of the alignment hole corresponds to the position of the FPC limit hole, and the T-shaped pin is from top to bottom Pass through the FPC limit hole and insert into the alignment hole.

Preferably, a high-temperature-resistant silicone pad is also provided on the upper surface of the support block to make the FPC fit more smoothly.

Preferably, both the cover plate and the bottom plate are horizontally spliced by a plurality of substrates, and the substrates are fixedly connected by connecting pieces, and except for the two outermost substrates, each of the other substrates includes at least one vent or support block.

Referring to Figure 1, the LED flexible circuit board adopts the imposition process during production, that is, multiple light strips or light strips are designed on one FPC. The quantity matches the actual production demand and has good applicability.

Preferably, the T-shaped pin is made of nickel-iron, and a magnet is provided on the inner wall of the alignment hole, so as to realize the fixing effect on the FPC.

The technical solution provided by the utility model has the following beneficial effects:

The surface mount device is simple in structure and easy to use, and can meet the processing schemes of LED light strips or light strips of different sizes and specifications. The T-shaped pin and the support table play a good role in supporting and fixing the FPC, so that the LED and Relevant components are well attached, which solves the problem of poor quality of LED strips or light strips during the mounting and manufacturing process, and also ensures the smooth progress of subsequent reflow soldering operations by setting vents, improving product quality .

Description of drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the accompanying drawings that need to be used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of the present invention , for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without creative work, wherein:

Fig. 1 is a structural schematic diagram of an LED flexible circuit board;

Fig. 2 is a schematic diagram of the overall structure of the surface mount device described in the utility model;

Fig. 3 is a schematic structural view of the cover plate of the surface mount device shown in Fig. 2;

Fig. 4 is a schematic structural view of the bottom plate of the surface mount device shown in Fig. 2;

FIG. 5 is a schematic vertical cross-sectional view of the surface mount device shown in FIG. 2 .

In the figure: 01FPC, 02 components, 03FPC limit hole, 1 cover plate, 2 bottom plate, 3T-shaped pin, 4 positioning hole, 5 alignment hole, 6 ventilation port, 7 positioning column, 8 support block, 9 silicone pad, 10 connecting pieces.

detailed description

The technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the accompanying drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of them. Example. Based on the embodiments of the present utility model, all other embodiments obtained by persons of ordinary skill in the art without making creative efforts belong to the scope of protection of the present utility model.

Example 1

Referring to Figure 2-Figure 5, a surface mount device for producing LED flexible circuit boards, including a cover plate 1 and a bottom plate 2 arranged up and down, and a T-shaped pin for fixing the FPC on the cover plate 1 3. And a positioning column 7 for fixedly connecting the cover plate 1 and the bottom plate 2 .

The bottom end of the positioning column 7 is fixedly arranged on the base plate 2, and a positioning hole 4 for inserting the top end of the positioning column 7 is provided on the corresponding position of the cover plate 1; Alignment holes 5 and a plurality of strip-shaped vents 6 parallel to each other, the alignment holes 5 correspond to the position of the upper hole of the FPC and magnets are arranged on the inner wall of the alignment holes 5, and the T-shaped pins 3 is made of nickel iron and passes through the FPC limiting hole from top to bottom and is inserted into the alignment hole 5 .

Also be provided with a plurality of mutually parallel bar-shaped support blocks 8 on the said bottom plate 2, the position of said support block 8 and air vent 6 corresponds up and down and corresponds to the position of the pins to be welded of components and parts on the FPC, in said The upper surface of the support block 8 is also provided with a high-temperature-resistant silicone pad 9 to make the FPC fit more smoothly.

In this embodiment, the cover plate 1 and the bottom plate 2 are formed by horizontal splicing of a plurality of substrates, and the substrates are fixedly connected by connecting pieces 10, and except for the two outermost substrates, each of the other substrates is At least one vent 6 or support block 8 is included.

The working process of the surface mount device is as follows:

Firstly, the cover plate 1 and the bottom plate 2 are fixed up and down. At this time, the positioning column 7 is inserted into the positioning hole 4 and the support block 8 is inserted into the air vent 6. Then, the blank FPC is placed on the cover plate 1, and the FPC is The position of the pin to be welded and the positioning hole 03 are respectively aligned with the position of the vent 6 and the positioning hole 5, and then the T-shaped pin 3 is passed through the positioning hole 03 of the FPC from top to bottom and inserted into the positioning hole 5 , due to the adsorption effect of the magnet on the T-shaped pin 3, the position of the FPC is fixed and spread out under force. At this time, the lower surface of the FPC is attached to the upper surface of the support block 8 (or the silicone pad), thereby playing a role in the FPC. Supporting function, then apply solder paste on the FPC and place related components, and finally remove the bottom plate 2, and transfer the cover plate 1 to the reflow soldering equipment together with the FPC. Since there is a vent 6 under the position to be soldered on the FPC, The hot air can be in direct contact with the FPC, so it will not hinder the subsequent welding process.

The above descriptions are only embodiments of the present utility model, and are not intended to limit the scope of patent protection of the present utility model. Any equivalent structure or equivalent process transformation made by using the specification of the utility model and the contents of the accompanying drawings can be directly or indirectly used in other applications. Related technical fields are all included in the patent protection scope of the present utility model in the same way.

Claims (4)

1. A surface mount device for producing LED flexible circuit boards, characterized in that it comprises a cover plate (1) and a base plate (2) arranged up and down, for fixing the FPC (01) on the cover plate (1) the T-shaped pin (3), the positioning hole (4) arranged on the cover plate (1), the alignment hole (5) and a plurality of strip-shaped vents (6) parallel to each other, and The positioning column (7) and a plurality of parallel bar support blocks (8) arranged on the base plate (2); the positions of the positioning hole (4) and the positioning column (7) correspond up and down and are matched and connected, The positions of the vent (6) and the support block (8) correspond up and down and correspond to the positions of the pins to be welded on the components (02) on the FPC, and the alignment holes (5) and the FPC limit holes (03) Corresponding to the position, the T-shaped pin (3) passes through the FPC limit hole (03) from top to bottom and is inserted into the alignment hole (5). 2. The surface mount device according to claim 1, characterized in that, a high-temperature-resistant silicone pad (9) is also provided on the upper surface of the support block (8), so that the FPC can be attached more smoothly. 3. The surface mount device according to claim 2, characterized in that, the cover plate (1) and the bottom plate (2) are formed by horizontal splicing of multiple substrates, and the connecting pieces (10) are connected between the substrates. are fixedly connected, and except for the two outermost base plates, each of the other base plates includes at least one vent (6) or support block (8). 4. The surface mount device according to any one of claims 1-3, characterized in that, the T-shaped pin (3) is made of nickel-iron material, and is arranged on the inner wall of the alignment hole (5) There are magnets to realize the fixing effect on FPC(01).