CN213026642U

CN213026642U - Board-to-board connector structure with high welding strength and good mutual matching sense of male and female seats

Info

Publication number: CN213026642U
Application number: CN202021020128.1U
Authority: CN
Inventors: 金利斌; 蒋阳行; 马鸣
Original assignee: Dongtai Runtian Precision Technology Co ltd
Current assignee: Dongtai Runtian Precision Technology Co ltd
Priority date: 2020-06-06
Filing date: 2020-06-06
Publication date: 2021-04-20
Anticipated expiration: 2030-06-06

Abstract

The utility model discloses a board to board connector structure that welding strength is high and public female seat is mutually joined in marriage and is felt well, it includes public head, female seat, public head with the regional equal cladding in fitting surface at female seat both ends has the protection steel sheet, all be provided with on the protection steel sheet a plurality of and circuit board welded SMT leg. The utility model discloses area of welding is big, and it is good to eat tin nature, and the welding is firm, and is difficult for rocking after public female seat is mutually joined in marriage, and mutually joins in marriage and feels.

Description

Board-to-board connector structure with high welding strength and good mutual matching sense of male and female seats

[ technical field ] A method for producing a semiconductor device

The utility model belongs to the technical field of the connector, especially, relate to a board to board connector structure that welding strength is high and public female seat is mutually joined in marriage and is felt well.

[ background of the invention ]

With the rapid development of information technology and the increasing demand for data, the data transmission rate of mass data transmission is more and more demanding. The board-to-board connector comprises a female socket and a male head, and the female socket and the male head both comprise a plastic part and a metal terminal. The steel sheet welding feet on two sides of the male end and the female end of the existing BTB connector are vertical feet, the welding area is small, the tin-eating performance is poor, the welding is not firm, an injection mold is complex, and the molding is difficult. And the bending material thickness of the head part of the female terminal of the existing BTB connector is consistent, the stamping bending stress is large, and the forming is difficult. Two sides of the barb lower side of the female terminal of the traditional BTB connector are not provided with bulges, and the barb lower side is not limited after being filled with plastic cement and is easy to shake.

Therefore, it is desirable to provide a new board-to-board connector structure with high welding strength and good mutual matching between the male and female sockets to solve the above problems.

[ Utility model ] content

The utility model discloses a main aim at provides a board that welding strength is high and public female seat is mutually joined in marriage and is felt good to board connector structure, and welding area is big, and it is good to eat tin nature, and the welding is firm, and is stable difficult for rocking after public female seat is mutually joined in marriage, mutually joins in marriage and feels.

The utility model discloses a following technical scheme realizes above-mentioned purpose: the utility model provides a high and public female seat of welding strength mutually supports board to board connector structure who feels, it includes public head, female seat, public head with the regional cladding that all has the protection steel sheet of fitting surface at female seat both ends, all be provided with on the protection steel sheet a plurality of and circuit board welded SMT leg.

Furthermore, the SMT welding feet are positioned at two ends of the male head or the female seat and extend out of the surface of the male head or the female seat.

Furthermore, the female seat comprises a plastic body and a metal terminal embedded and injection-molded in the plastic body.

Further, the plastic body comprises a strip-shaped island portion located in the middle, and a plug-in surrounding groove which is arranged around the strip-shaped island portion and matched with the male head for plug-in.

Furthermore, a plurality of limiting clamping grooves for limiting the metal terminals are formed in the surface of the inner wall of the opposite insertion surrounding groove.

Furthermore, the metal terminal comprises a U-shaped section which is bent to form a U-shaped clamping groove matched with the male terminal, a buckle convex hull formed by turning over 180 degrees in the U-shaped clamping groove from one free end of the U-shaped section, a limiting clamping strip which is turned over outwards 180 degrees from the other free end of the U-shaped section and is inserted into the limiting clamping groove, and a terminal welding foot which is turned over outwards horizontally from the bottom of the limiting clamping strip.

Furthermore, one end of the U-shaped section, which is close to the buckle convex hull, is thinned from bottom to top to form a first sheet thinning part.

Furthermore, one end of the U-shaped section, which is close to the limiting clamping strip, is provided with a second sheet thinning part, and a boss which extends into the U-shaped clamping groove is formed at the upper end of the U-shaped section.

Furthermore, bulges extending outwards are arranged on two sides of the limiting clamping strip, and the end parts of the bulges support against the inner wall of the limiting clamping groove.

Compared with the prior art, the utility model relates to a high and good board of public female seat mutually supporting of welding strength lies in to board connector structure's beneficial effect: the welding feet of the steel sheets on the two sides of the male end and the female end are arranged to be SMT welding feet, so that the welding area is greatly increased, the tin absorption performance is good, the welding is firmer, and the injection mold is simple and easy to form; the thickness of the bent material at the head of the female terminal is thinned, so that the stress is small during stamping and bending, and the female terminal is easy to form; set up the arch through setting up on female end terminal barb below both sides for after putting into the plastic body, can control spacingly, be difficult for rocking, improved the metal terminal at this internal positional stability of plastic, and then improved the feeling of mutually supporting of public head and female seat.

[ description of the drawings ]

Fig. 1 is a schematic diagram of an explosive structure according to an embodiment of the present invention;

FIG. 2 is a schematic view of an exploded structure of the female seat in the embodiment of the present invention;

fig. 3 is a schematic structural diagram of a metal terminal in an embodiment of the present invention;

FIG. 4 is a schematic view of another angle of the metal terminal according to the embodiment of the present invention

The figures in the drawings represent:

100 board-to-board connector structure with high welding strength and good mutual matching sense of male and female seats;

1 male;

2 female seats, 21 plastic bodies, 211 strip-shaped island parts, 212 opposite-insertion surrounding grooves, 213 limit clamping grooves, 22 metal terminals, 221U-shaped clamping grooves, 222U-shaped sections, 223 buckle convex hulls, 224 limit clamping strips, 225 terminal welding feet, 226 first sheet thinning parts, 227 second sheet thinning parts, 228 bosses, 229 bulges and 2210 barb parts;

3 protective steel sheet, 31SMT welding leg.

[ detailed description ] embodiments

Example (b):

referring to fig. 1-4, the present embodiment is a board-to-board connector structure 100 with high welding strength and good mutual matching between the male and female bases, which includes a male head 1 and a female base 2, wherein the mating surface areas at the two ends of the male head 1 and the female base 2 are both covered with a protection steel sheet 3, and the protection steel sheet 3 is provided with a plurality of SMT solder feet 31 welded to the circuit board.

The SMT solder tails 31 are located on both sides of the male 1 or female 2 and extend beyond the surface thereof. This embodiment realizes public first 1 or female seat 2 and the fixed connection of the circuit board that corresponds through setting up SMT fillet weld 31 and PCB board welding, and its welding area is big, and it is good to eat tin nature, and the welding is more firm, and injection mold is simple, easy shaping.

The female housing 2 includes a plastic body 21, and a metal terminal 22 embedded in the plastic body 21.

The plastic body 21 comprises a strip-shaped island portion 211 in the middle and an opposite insertion surrounding groove 212 arranged around the strip-shaped island portion 211 and matching with the male head 1. The inner wall surface of the opposite insertion surrounding groove 212 is provided with a plurality of limiting clamping grooves 213 for limiting the metal terminals 22.

The metal terminal 22 includes a U-shaped section 222 bent to form a U-shaped clamping groove 221 matching with the male terminal, a buckle convex hull 223 formed by turning over from one free end of the U-shaped section 222 toward the inside of the U-shaped clamping groove 221 by 180 degrees, a limit clamping strip 224 turned over from the other free end of the U-shaped section 222 by 180 degrees and inserted into the limit clamping groove 213, and a terminal solder foot 225 turned over from the bottom of the limit clamping strip 224 horizontally and outwardly.

One end of the U-shaped section 222 near the snap convex hull 223 is thinned from bottom to top, and a first sheet thinning portion 226 is formed, and the thickness of the terminal sheet is gradually thinned. The first sheet thinning portion 226 is formed by thinning the bent material thickness of the head portion of the female terminal, so that the stress during stamping and bending is small, the forming is easy, and the stability of shape retention of the metal terminal 22 can be effectively improved. The thinning direction of the first sheet thinning portion 226 may be thinned outward or inward.

One end of the U-shaped section 222 close to the limiting clamping strip 224 is provided with a second sheet thinning part 227, and a boss 228 extending into the U-shaped clamping groove 221 is formed at the upper end position. The boss 228 can effectively improve the hand feeling of the male connector 1.

Two sides of the position-limiting clamping strip 224 are provided with protrusions 229 extending outwards, and the end parts of the protrusions 229 are abutted against the inner wall of the position-limiting clamping groove 213. Through setting up protruding 229 in female seat terminal barb below both sides for after putting into spacing draw-in groove 213 in the plastic body 21, can control spacingly, be difficult for rocking.

The two sides of the limiting clip strip 224 are further provided with barb parts 2210 extending outwards, and the barb parts 2210 are inserted into the plastic body 21 in an interference manner to fix the metal terminal 22.

The protrusions 229 are located below the barb 2210, and the barb 2210 fixes the metal terminal 22 in the plastic body 21 so that the terminal is not easy to fall off; the protrusions 229 cooperate with the metal terminals 22 to perform a limiting and centering function in the limiting slot 213.

According to the plate-to-plate connector structure 100 with high welding strength and good mutual matching feeling of the male and female seats, the welding feet of the steel sheets on the two sides of the male and female ends are set to be SMT welding feet, so that the welding area is greatly increased, the tin absorption is good, the welding is firmer, an injection mold is simple, and the forming is easy; the thickness of the bent material at the head of the female terminal is thinned, so that the stress is small during stamping and bending, and the female terminal is easy to form; set up the arch through setting up on female end terminal barb below both sides for after putting into the plastic body, can control spacingly, be difficult for rocking, improved the metal terminal at this internal positional stability of plastic, and then improved the feeling of mutually supporting of public head and female seat.

What has been described above are only some embodiments of the invention. For those skilled in the art, without departing from the inventive concept, several modifications and improvements can be made, which are within the scope of the invention.

Claims

1. The utility model provides a welding strength is high and public female seat mutually supports board to board connector structure who feels, its characterized in that: the protective steel plate is coated with protective steel plates in matching surface areas at two ends of the male head and the female seat, and a plurality of SMT welding feet welded with a circuit board are arranged on the protective steel plates; the female seat comprises a plastic body and a metal terminal embedded and injected in the plastic body; the plastic body comprises a strip-shaped island part positioned in the middle and an opposite insertion surrounding groove which is arranged around the strip-shaped island part and is matched with the male head for opposite insertion; the inner wall surface of the opposite insertion surrounding groove is provided with a plurality of limiting clamping grooves for limiting the metal terminals; the metal terminal comprises a U-shaped section, a buckle convex hull, a limiting clamping strip and a terminal welding leg, wherein the U-shaped section is bent to form a U-shaped clamping groove which is matched with the male terminal, the buckle convex hull is formed by turning over a free end of the U-shaped section towards 180 degrees in the U-shaped clamping groove, the limiting clamping strip is turned over outwards by 180 degrees from the other free end of the U-shaped section and is inserted into the limiting clamping groove, and the terminal welding leg is turned over outwards horizontally from the bottom of the limiting clamping strip.

2. The board-to-board connector structure of claim 1, which has high welding strength and good mutual matching between the male and female sockets, and is characterized in that: the SMT weld leg is positioned at two ends of the male head or the female seat and extends out of the surface of the male head or the female seat.

3. The board-to-board connector structure of claim 1, which has high welding strength and good mutual matching between the male and female sockets, and is characterized in that: one end of the U-shaped section, which is close to the buckle convex hull, is thinned from bottom to top to form a first sheet thinning part.

4. The board-to-board connector structure of claim 3, which has high welding strength and good mutual matching between the male and female sockets, and is characterized in that: one end of the U-shaped section, which is close to the limiting clamping strip, is provided with a second sheet thinning part, and a boss which extends into the U-shaped clamping groove is formed at the upper end of the U-shaped section.

5. The board-to-board connector structure of claim 4, which has high welding strength and good mutual matching between the male and female sockets, and is characterized in that: the two sides of the limiting clamping strip are provided with bulges extending outwards, and the end parts of the bulges are abutted against the inner wall of the limiting clamping groove.