CN211017475U - Connector for flexible circuit board - Google Patents

Abstract

The utility model discloses a flexible circuit board connector, it includes an insulation base, one rotationally installs lid, a plurality of on this insulation base and inserts the conductive terminal of locating in this insulation base side by side and the welding piece of two symmetry installations to this insulation base both ends. Two ends of the insulating base are respectively provided with a fixing groove and a clamping structure adjacent to the fixing groove. Each welding piece is provided with a fixing piece positioned at the rear end, a horizontal insertion piece positioned at the front end and a clamping hook positioned below the horizontal insertion piece and formed at the connecting part of the horizontal insertion piece and the fixing piece. The horizontal insertion piece and the fixing piece are assembled in the fixing groove, and the clamping hook is matched with the clamping structure of the insulating base. The utility model discloses flexible circuit board connector is through improving the block structure of welding piece and insulating base for the welding piece can provide stable coplane degree.

Description

Connector for flexible circuit board

Technical Field

The present invention relates to a connector, and more particularly to a flexible circuit board connector with a stable structure.

Background

Flexible Printed Circuit (FPC) connectors are used to connect a Printed Circuit Board (PCB) to a Flexible Printed Circuit (FPC) for mechanical and electrical connection, and are mainly used in electronic devices such as L CD and L ED liquid crystal displays, scanners, digital cameras, game machines, tablet computers, notebook computers, and car theaters.

The flexible circuit board connector can realize thinning and mainly comprises four parts, namely a longitudinal insulating base, a cover body which is rotatably arranged on the insulating base, a plurality of conductive terminals positioned in the insulating base and a pair of welding sheets which are arranged on the bottom surface of the insulating base.

The function of the welding sheet is mainly positioning, fixing, increasing strength and the like, in particular, the welding sheet is mainly used for strengthening the connection firmness between the flexible circuit board connector and the circuit board and can avoid the damage of the welding of the terminal and the PCB due to the overlarge stress born by the conductive terminal. The solder tabs are required to be consistent with the coplanarity of all the terminals after assembly.

However, the conventional soldering terminal is difficult to meet the above requirements, for example, when the soldering terminal is clamped on the insulating base, the coplanarity between the soldering terminal and the conductive terminal is unstable due to unstable clamping structure. For another example, the pad of the soldering tab in the prior art is a large plane, and the contact area between the pad and the circuit board is large, so that the flatness of the pad of the soldering tab is not easy to guarantee, and a cold joint phenomenon is easy to occur.

Therefore, there is a need for a new flexible circuit board connector that overcomes the deficiencies of the prior art.

SUMMERY OF THE UTILITY MODEL

The utility model discloses a main aim at provides a flexible circuit board connector, its welding piece can provide stable coplane degree to it is firm in order to ensure soldering tin through the plane degree of optimizing this welding piece, thereby ensures that this flexible circuit board connector has good connection quality.

Other objects and advantages of the present invention can be further understood from the technical features disclosed in the present invention.

In order to achieve the purpose, the utility model adopts the following technical scheme: a flexible circuit board connector comprises an insulating base, a cover body, a plurality of conductive terminals and two welding sheets. The insulating base is provided with a plurality of terminal channels formed in the insulating base and two fixing grooves symmetrically formed at two ends of the insulating base; each fixing groove comprises a vertical groove and a horizontal extending groove which are mutually communicated. The two ends of the cover body are pivoted on the insulating base, and a slender socket is defined by the cover body and the insulating base together. The plurality of conductive terminals are inserted in the terminal channels of the insulating base side by side, each conductive terminal is provided with a contact part and a tail part, and the contact part is exposed in the socket; and the tail part extends out of the bottom surface of the insulating base. The two welding sheets are respectively assembled in the corresponding fixing grooves at the two ends of the insulating base. The insulating base is further provided with two clamping structures which are symmetrically formed on the bottom surfaces of the two ends of the insulating base and are used for being fixed with the corresponding welding sheets. Each welding piece is provided with a fixing piece positioned at the rear end, a horizontal inserting piece positioned at the front end and a clamping hook positioned below the horizontal inserting piece and formed at the connecting part of the horizontal inserting piece and the fixing piece; the horizontal inserting sheet is inserted into and fixed in the horizontal extending groove, the fixing sheet is assembled in the vertical groove, and the clamping hook is matched with the clamping structure of the insulating base.

In one embodiment, the vertical groove penetrates through the upper and lower surfaces of the insulating base and is open.

In one embodiment, the horizontal extension slot extends forwards into the insulating base to form a closed shape.

In one embodiment, a protrusion facing the vertical groove and a groove located below the protrusion are formed on the bottom wall of the horizontal extension groove, and the protrusion and the groove form a clamping structure of the insulating base; wherein the hook of the welding sheet extends into the groove and clamps the protrusion.

In one embodiment, the fastening tab of the welding tab is shaped L.

In one embodiment, the welding plate further has an opening formed at the bottom of the fixing plate.

In one embodiment, the insulating base is flat and elongated.

Compared with the prior art, the utility model discloses flexible circuit board connector is through improving the block structure of welding piece and insulating base for the welding piece can provide stable coplane degree, and ensures that soldering tin is firm in order to optimize its plane degree through the structure of improving the welding piece, further ensures that this flexible circuit board connector has good connection quality.

Drawings

Fig. 1 is a schematic view of a three-dimensional structure of the flexible circuit board connector of the present invention.

Fig. 2 is an enlarged schematic view of one end of the flexible circuit board connector according to the present invention.

Fig. 3 is a schematic structural view of the flexible circuit board connector according to another direction of the present invention, so as to show the matching relationship between the soldering terminal and the insulating base more clearly.

Fig. 4 is an exploded schematic view of the flexible circuit board connector according to the present invention, wherein the situation after the soldering tab is removed is mainly shown.

Fig. 5 is an exploded view of the flexible circuit board connector according to another embodiment of the present invention.

Fig. 6 is a schematic cross-sectional view of the flexible circuit board connector of the present invention.

The main reference numbers in the drawings of the specification of the present invention are as follows:

insulating base 10 of flexible circuit board connector 1

Fixed 12 vertical slots 120

Protrusion 140 of engaging structure 14

Recess 142 cover 20

Contact portion 31 of conductive terminal 30

Tail 32 weld tab 40

Fixing piece 41 horizontal inserting piece 42

The hook 43 has an opening 44.

Detailed Description

The following description of the embodiments refers to the accompanying drawings for illustrating the specific embodiments in which the invention may be practiced. In the present invention, directional terms such as "up", "down", "front", "back", "left", "right", "top", "bottom", etc. refer to directions of the attached drawings only. Accordingly, the directional terms used are used for describing and understanding the present invention, and are not used for limiting the present invention.

Referring to fig. 1 to 6, the flexible circuit board connector 1 of the present invention includes an insulating base 10, a cover 20 rotatably mounted on the insulating base 10, a plurality of conductive terminals 30 inserted in the insulating base 10 side by side, and two welding sheets 40 symmetrically mounted to two ends of the insulating base 10.

As shown in fig. 4 and 5, the insulating base 10 is flat and longitudinal, and has a plurality of terminal channels (not shown) formed in the insulating base 10, and two fixing grooves 12 symmetrically formed at two ends of the insulating base 10.

As shown in fig. 6, each fixing groove 12 includes a vertical groove 120 and a horizontal extending groove 122 which are connected to each other. Wherein the vertical trench 120 (see fig. 4 and 5) is open in the upper and lower directions of the insulating base 10, that is, the vertical trench 120 penetrates the upper and lower surfaces of the insulating base 10. The horizontally extending slot 122 (see fig. 6) extends forward into the insulating base 10 to form a closed shape.

In addition, as shown in fig. 6, the insulating base 10 further has two engaging structures 14 symmetrically formed on the bottom surfaces of the two ends of the insulating base 10 and adjacent to the corresponding fixing slots 12 for fixing with the corresponding welding sheets 40. In detail, the bottom wall of the horizontal extension groove 122 is formed with a protrusion 140 facing the vertical groove 120 and a groove 142 located below the protrusion 140. The protrusion 140 and the groove 142 form the engaging structure 14 of the insulating base 10 for fixing with the corresponding soldering tab 40, as will be described in detail later. In this embodiment, the protrusion 140 is a portion of the bottom wall of the horizontally extending slot 122. For example, in actual manufacturing, the rear end of the bottom wall may be thinned, so that the combination structure of the protrusion 140 and the groove 142 may be formed.

As shown in fig. 1, two ends of the cover 20 are pivotally disposed on the insulating base 10, and the cover 20 and the insulating base 10 together define an elongated socket for inserting a flexible circuit board therein.

As shown in fig. 2 and 3, the plurality of conductive terminals 30 are inserted into the terminal channels of the insulating base 10, each conductive terminal 30 has a contact portion 31 and a tail portion 32, and the contact portion 31 is exposed in the socket and can form an electrical connection with the inserted flexible circuit board; the tail portion 32 extends from the bottom surface of the insulating base 10 to be soldered to a circuit board.

The two soldering tabs 40 are respectively assembled in the fixing slots 12 at both ends of the insulating base 10. as shown in fig. 4 to 6, each soldering tab 40 has an L-shaped fixing tab 41 at the rear end, a horizontal insertion tab 42 at the front end, and a hook 43 formed at the connection position of the insertion tab and the fixing tab 41, when the soldering tab 40 is assembled in the corresponding fixing slot 12, as shown in fig. 6, the horizontal insertion tab 42 is inserted into the horizontal extension slot 122 and fixed in the horizontal extension slot 122 by means of a barb structure provided on the horizontal insertion tab 42, the fixing tab 41 is assembled in the vertical slot 120, and the hook 43 is capable of cooperating with the engaging structure 14 of the insulating base 10. in detail, the hook 43 is capable of extending into the groove 142 and holding the protrusion 140, so that the soldering tab 40 can be stably fastened to the insulating base 10 and form a stable fastening structure, and thus, the soldering tab 40 of the flexible circuit board connector 1 can provide a stable coplanar degree.

In addition, the welding plate 40 has an opening 44, as shown in fig. 4, the opening 44 is formed at the bottom of the fixing plate 41, and more specifically, the opening 44 is formed at the corner of the fixing plate 41. By providing the opening 44, the contact area between the soldering tab 40 and the circuit board can be reduced to optimize the flatness of the soldering tab 40, thereby ensuring that the soldering tab 40 can be firmly soldered to the circuit board.

To sum up, the utility model discloses flexible circuit board connector 1 is through improving the block structure 14 or the solid structure of card of welding piece 40 and insulating base 10 for welding piece 40 can provide stable coplane degree, and ensures that soldering tin is firm with optimizing its plane degree through the structure of improving welding piece 40, further ensures that this flexible circuit board connector 1 has good connection quality.

Claims (7)

1. A flexible circuit board connector comprises an insulating base, a cover body, a plurality of conductive terminals and two welding sheets;

the insulating base is provided with a plurality of terminal channels formed in the insulating base and two fixing grooves symmetrically formed at two ends of the insulating base; each fixing groove comprises a vertical groove and a horizontal extending groove which are mutually communicated;

the two ends of the cover body are pivoted on the insulating base, and a slender socket is defined by the cover body and the insulating base together;

the plurality of conductive terminals are inserted in the terminal channels of the insulating base side by side, each conductive terminal is provided with a contact part and a tail part, and the contact part is exposed in the socket; the tail part extends out of the bottom surface of the insulating base;

the two welding sheets are respectively assembled in the corresponding fixing grooves at the two ends of the insulating base;

the method is characterized in that: the insulating base is also provided with two clamping structures which are symmetrically formed on the bottom surfaces of two ends of the insulating base and are used for being fixed with corresponding welding sheets;

each welding piece is provided with a fixing piece positioned at the rear end, a horizontal inserting piece positioned at the front end and a clamping hook positioned below the horizontal inserting piece and formed at the connecting part of the horizontal inserting piece and the fixing piece; the horizontal inserting sheet is inserted into and fixed in the horizontal extending groove, the fixing sheet is assembled in the vertical groove, and the clamping hook is matched with the clamping structure of the insulating base.

2. The flexible circuit board connector of claim 1, wherein: the vertical groove penetrates through the upper surface and the lower surface of the insulating base and is open.

3. The flexible circuit board connector of claim 2, wherein: the horizontal extension groove extends forwards into the insulating base to form a closed shape.

4. The flexible circuit board connector of claim 1, wherein: a bulge facing the vertical groove and a groove positioned below the bulge are formed on the bottom wall of the horizontal extension groove, and the bulge and the groove form a clamping structure of the insulating base;

wherein the hook of the welding sheet extends into the groove and clamps the protrusion.

5. The connector of claim 1, wherein the securing tab of the solder tab is shaped L.

6. The flexible circuit board connector of claim 5, wherein: the welding sheet is also provided with an opening which is formed at the bottom of the fixing sheet.

7. The flexible circuit board connector of claim 1, wherein: the insulating base is flat and longitudinal.

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