CN201051563Y - FPC connector - Google Patents

Abstract

The utility model relates to a can be fit for FPC connector of SMT technique, including insulating pedestal, lid shell, conductive terminal group and fixed terminal, this lid shell and insulating pedestal lock, during this conductive terminal group inserted the terminal hole of locating insulating pedestal, above-mentioned fixed terminal comprises a welded plate, a fixed plate and a locating plate of connecting between this welded plate and fixed plate, and a fork mouth has been seted up to this locating plate one side, and this fork mouth inlays to locate in the caulking groove that insulating pedestal rear end was seted up. The fork opening of the positioning plate is vertically pressed into the caulking groove in the insulating base body to replace the traditional single-side pressing structure, so that the flatness and the stability can be effectively ensured, and the effect of reducing the cost is achieved.

Description

FPC connector

technical field

The utility model relates to the technology in the field of connectors, in particular to an FPC (FlatPrinted circuit or cable) connector, and more particularly to an FPC connector suitable for SMT technology.

Background technique

With the rapid development of science and technology, there are more and more various electronic products, such as portable information devices such as digital cameras (DSC), digital video cameras (DVC), personal digital assistants (PDA), and flexible flat cables (FPC) Used in printed circuit boards and electronic components of these portable information devices. And the flexible flat cable (FPC, Flat Printed circuit or cable) connector installed on the printed circuit board was born accordingly.

FPC connectors are usually composed of insulating bases, conductive terminal groups, and fixed terminals. For traditional fixed terminals, please refer to Chinese patent application 200310123463.9, which discloses a connector mounted on a printed substrate and connected to an FPC. This patent application It is disclosed that a pair of limiting pieces (fixed terminals) are arranged at the ends of both sides of the socket housing (insulating seat), and the pair of limiting pieces are respectively installed on the printed circuit board for fixing the socket housing on the printed circuit board. It can be seen from the figure that the embedded fixing method is used between the limiting plate and the printed substrate, and its operation is cumbersome, which is increasingly unsuitable for high-efficiency production today.

At present, with the widespread application of SMT (Surface Mount Technology), it has a tendency to completely replace the conventional embedded bonding method; in order to be suitable for the implementation of SMT technology, the current fixed terminal structure in the FPC connector is "L" shape, which uses one side to press into the insulating seat, which will cause poor flatness and bring troubles in the actual production process.

Utility model content

The utility model aims at the deficiency of the above-mentioned conventional technology, and the main purpose is to provide a fixed FPC connector based on SMT (Surface Bonding Technology), which can effectively ensure flatness and stability, and achieve the effect of reducing costs.

Another object of the present invention is to provide an FPC connector, which can increase the plugging force of the product, thereby improving the mechanical performance of the product and reducing defects.

In order to achieve the above-mentioned purpose, the utility model takes the following technical solutions:

An FPC connector, comprising an insulating seat body, a cover shell, a conductive terminal group and a fixed terminal, the cover shell is fastened with the insulating seat body, the conductive terminal group is inserted in the terminal hole of the insulating seat body, and the fixed terminal is formed by It consists of a welding plate, a fixing plate and a positioning plate connected between the welding plate and the fixing plate. A fork is provided on one side of the positioning plate, and the fork is embedded in a slot provided at the rear end of the insulating base body. .

The welding plate, the fixing plate and the positioning plate are integrally formed.

The inner edge of the fork is protruded with stabs for positioning.

The above-mentioned cover shell includes a base and snap-fitting arms extending on both sides of the base. The base is combined with the front end of the insulating seat body to form a slot, and a sliding piece extends from the rear of the base to increase the insertion and extraction force of the product, thereby improving the product quality. Excellent mechanical properties to reduce defects; the thickness of the slide is preferably 0.4mm.

Compared with the prior art, the utility model has the beneficial effects as follows:

1. Use the fork of the positioning plate to vertically press into the slot in the insulating base instead of the traditional single-side press-in structure, which can effectively ensure the flatness and stability, and achieve the effect of reducing costs.

2. The sliding piece of the cover shell, especially the design with a thickness of 0.4mm, can increase the insertion and extraction force of the product, thereby improving the mechanical performance of the product and reducing defects.

Description of drawings

Fig. 1 is a schematic diagram of the three-dimensional decomposition structure of the utility model;

Fig. 2 is a schematic diagram of the combined three-dimensional structure of the utility model;

Fig. 3 is a schematic diagram of a three-dimensional enlarged structure of a fixed terminal of the present invention;

Fig. 4 is a structural schematic diagram of the top view of the cover shell of the utility model;

Fig. 5 is a schematic diagram showing the enlarged structure of the section A-A in Fig. 4 .

Explanation of reference numbers:

1. Insulation seat body 11. Terminal hole 12. Insert groove 2. Cover shell 21. Base 22. Snap arm 3. Conductive terminal group 4. Fixed terminal 41. Welding plate 42. Fixed plate 43. Positioning plate 431. Fork 431. Thrust

Detailed ways

The utility model will be further described below in conjunction with the accompanying drawings and specific embodiments.

Please refer to Figures 1 to 5, an FPC connector includes an insulating base body 1, a cover shell 2, a conductive terminal group 3 and a fixed terminal 4, wherein:

The insulating base body 1 is integrally punched from plastic, wherein a plurality of terminal holes 11 are opened in the insulating base body 1 for inserting the conductive terminal group 3 . Both ends of the rear side of the insulating base 1 are provided with embedding grooves 12 for fixing the fixed terminals 4 .

Referring again to Fig. 4 and Fig. 5, the cover shell 2 includes a base 21 and snapping arms 22 extending on both sides of the base 21, the snapping arms 22 are used to snap the positions on both sides of the insulating base 1; and the base 21 Combined with the front end of the insulating seat body 1 to form a slot 5, a sliding piece 211 is extended from the rear side of the base 21 to increase the insertion and extraction force of the product, thereby improving the mechanical properties of the product and reducing defects; the thickness of the sliding piece H( See Figure 5) is preferably 0.4mm.

Conductive terminal group 3, which can be 4Pin, 8Pin or 12Pin, etc., this embodiment is described with 12Pin, wherein each conductive terminal is integrally stamped and formed by metal material, which are respectively inserted into the terminal holes 11 in the insulating base 1 , in order to achieve the effect of electrical docking.

A pair of fixed terminals 4 are respectively embedded in the slots 12 at the rear end of the insulating base body 1, and are integrally stamped and formed from metal plates; the fixed terminals 4 are composed of a welding plate 41, a fixing plate 42 and a welding The positioning plate 43 between the plate 41 and the fixing plate 42 constitutes, wherein, the welding plate 41 is used to be fixed on the printed circuit board by using SMT technology, and the fixing plate 42 can be attached to the insulating base 1; the positioning A fork 431 is provided on one side of the plate 43 , and the fork 431 is directly pressed into the slot 12 of the insulating base 1 vertically. The inner edge of the fork 431 protrudes with a protrusion 432 , and the protrusion 432 is used to better interfere and fix the fixed terminal 4 in the slot 12 of the insulating base 1 .

The key point of the design of this utility model is to use the fork 431 of the positioning plate 43 of the fixed terminal 4 to vertically press into the embedded groove 12 of the insulating base 1 to replace the traditional single-side press-in structure, which can effectively ensure its flatness And stability, to achieve the effect of reducing costs. At the same time, the sliding piece 21 of the cover shell 2, especially the design of the sliding piece 21 with a thickness of 0.4mm, can increase the insertion and extraction force of the product, thereby improving the mechanical performance of the product and reducing defects.

The above is only a preferred embodiment of a FPC connector of the present utility model, and does not limit the technical scope of the present utility model. Therefore, any minor modification, Equivalent changes and modifications all still belong to the scope of the technical solution of the present utility model.

Claims (6)

1. A FPC connector, comprising an insulating seat body, a cover shell, a conductive terminal group and a fixed terminal, the cover shell is fastened with the insulating seat body, and the conductive terminal group is inserted in the terminal hole of the insulating seat body, its characteristics The above-mentioned fixed terminal is composed of a welding plate, a fixing plate and a positioning plate connected between the welding plate and the fixing plate, a fork is opened on one side of the positioning plate, and the fork is embedded behind the insulating base In the slot opened at the end. 2. The FPC connector according to claim 1, wherein the soldering plate, the fixing plate, and the positioning plate are integrally formed. 3. The FPC connector according to claim 1, characterized in that: the inner edge of the fork is protruded with a thorn for positioning. 4 . The FPC connector according to claim 1 , wherein the cover shell comprises a base and snap-fitting arms extending from both sides of the base, and the base and the front end of the insulating seat are combined to form a slot. 5. The FPC connector according to claim 4, wherein a sliding piece extends from the rear side of the base. 6. The FPC connector according to claim 5, wherein the thickness of the sliding piece is 0.4 mm.

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