CN202134687U

CN202134687U - Electric connector

Info

Publication number: CN202134687U
Application number: CN201120185280U
Authority: CN
Inventors: 丁高松
Original assignee: Ningbo Gao Song Electronics Co Ltd
Current assignee: Ningbo Gao Song Electronics Co Ltd
Priority date: 2011-05-31
Filing date: 2011-05-31
Publication date: 2012-02-01
Anticipated expiration: 2021-05-31

Abstract

An electric connector comprises: at least two pedestals, wherein the each pedestal is provided with a wiring hole; soldering lugs which are fixedly arranged in the pedestals; and spring plate and buttons which are arranged on the soldering lugs. The electric connector is characterized in that: the soldering lug comprises a current-carrying mainboard, wherein a clamping foot is formed at one side of the current-carrying mainboard, and a short circuit conductive pole which can realize ground protection between the adjacent soldering lugs is inserted in the clamping foot. According to the electric connector of the utility model, one side of the current-carrying mainboard of the soldering lug is provided with the clamping foot, a short circuit conductive piece can be inserted in the clamping foot, when the short circuit between the clamping feet is realized through the conductive piece, the clamping foot and the soldering lug are molded into an integrated body, thus the grounding short circuit between the soldering lug and each welding foot can be realized. Compared with the prior art that a ground wire is directly arranged on a circuit board, in the electric connector of the utility model, a grounding terminal is arranged in the pedestal, thus a grounding circuit can be effectively prevented from breaking, and grounding reliability of a binding post can be raised.

Description

Electric connector

Technical field

The utility model relates to a kind of electric connector.

Background technology

The node that electric connector (binding post) is used as circuit communication more is used in the different electric equipments, and common electric connector generally all has an interface, in use, can lead directly stretched in the interface and realizes the conducting of circuit.

For safety in utilization; Usually all be provided with earth connection on the binding post; Like the patent No. is a kind of electric connector 200920153542.7 Chinese utility model " electric connector " discloses, and it comprises: an insulating body, a plurality of conducting terminal, one first metal shell and one second metal shell of being located in the insulating body.First metal shell comprises two relative the first side walls, and each the first side wall extends one first weld part respectively.Second metal shell comprises two second relative sidewalls, one of them of respectively corresponding said two the first side walls of each second sidewall, and protrude out one second weld part in the position of each first weld part of correspondence respectively.First metal shell and the second metal shell relative fixed also are sheathed on outside the insulating body, and make the inboard of each second welding position in each adjacent first weld part.Each adjacent first, second weld part is welded on the ground path of printed circuit board (PCB) simultaneously, makes the combination of first, second metal shell have preferable screening effect and fixed effect.

In above-mentioned patent; The earth connection of binding post is arranged on the printed circuit board (PCB) (pcb board); Because the conductive layer thickness on the printed circuit board (PCB) is generally very little; And have bigger destabilizing factor in process of production, if in case circuit breaks off, then the earth connection safeguard protection effect of binding post had just been lost efficacy.

The utility model content

The utility model technical problem to be solved is that a kind of simple in structure and electric connector that ground protection is more safe and reliable is provided to above-mentioned prior art present situation.

The utility model solves the problems of the technologies described above the technical scheme that is adopted: a kind of electric connector includes

At least two splice in insulating base together, offer the wiring hole that can supply lead to insert on each said pedestal;

Weld tabs is fixedly installed in the said pedestal, is used to realize the electrical connection of circuit board and said lead;

Shell fragment is arranged on the said weld tabs, and this shell fragment includes a free end and a stiff end, and wherein, said free end has all the time the trend that offsets with said weld tabs, and said stiff end is fixedly connected on the described weld tabs; And

Button is connected the top of said pedestal, and the bottom of this button and the free end of said shell fragment offset;

It is characterized in that: said weld tabs includes a current-carrying mainboard, and a side of this current-carrying mainboard forms card base, is plugged with the short circuit conductive pole that can realize ground protection between the adjacent said weld tabs on the said card base.

As preferably; The outside projection in the bottom of said current-carrying mainboard has the support chip that can offset with the stiff end of said shell fragment bottom; The upper edge of this current-carrying mainboard outwards turns down the rib that formation one can offset with the free end top of said shell fragment; Current-carrying mainboard, support chip and the rib of said weld tabs forms a C type cross section, the bottom of said weld tabs is also one-body molded have two lay respectively at said support chip both sides and front and back stagger and the leg established.The weld tabs of present embodiment is owing to adopted the current-carrying mainboard of integral type planar structure, and the existing weld tabs structure current-carrying area of comparing is bigger, has improved the electric conductivity of weld tabs; And, take shape in settings of staggering before and after the leg on the weld tabs, increased creepage distance, make the proof voltage value raising of electric connector, and then improved the electrical strength of product, make that the overall performance of electric connector is better.

In order to improve the clamping force of shell fragment; Said shell fragment cross section is V-shaped; The arc sections that includes the end and be said free-ended first side, end and be the second side of said stiff end and connect said first side and second side, the inwall of said pedestal be formed with one outwards vertical and with the suitable reference column of said arc sections size.Because the first side of shell fragment and second side form V-structure, the shell fragment of the U type structure of comparing, the free end and the distance between the stiff end of this V-type shell fragment are bigger, thereby make that the clamping force of shell fragment is bigger, use more reliable.

In order to realize being connected quickly and easily of shell fragment and weld tabs; The edge, second side of said shell fragment offers a square draw-in groove; The current-carrying mainboard of said weld tabs offers a breach in the side near said support chip; The side of this breach and said current-carrying mainboard form one can with the suitable waist type portion of the openings of sizes of said square draw-in groove, said draw-in groove is fastened in the waist type portion of this current-carrying mainboard and realizes the stiff end of said shell fragment and being connected of said weld tabs.

Compared with prior art; The advantage of the utility model is: current-carrying mainboard one side at weld tabs is designed with card base, can wear the short circuit electric-conductor on the card base, after realizing short circuit with electric-conductor between the card base; Because card base and weld tabs are formed in one; Also just realized the ground connection short circuit between each leg of weld tabs, be compared in the prior art earth connection is set directly on the circuit board that the utility model is arranged at grounding terminal in the pedestal; Can prevent effectively that ground path from breaking off, and improves the ground connection reliability of binding post; And electric-conductor employing column structure, electric-conductor directly is plugged on the card base, makes that the sectional area of electric-conductor is bigger, and the overload current that can carry is also bigger, has improved the short-circuit protection ability of binding post, and the safety of products performance improves.

Description of drawings

Fig. 1 is the overall structure sketch map of the utility model embodiment.

Fig. 2 is the three-dimensional exploded view of the utility model embodiment.

Fig. 3 is the weld tabs structural representation of the utility model embodiment.

Fig. 4 is the elastic piece structure sketch map of the utility model embodiment.

Fig. 5 is the partial perspective cutaway view of the utility model embodiment.

Embodiment

Embodiment describes in further detail the utility model below in conjunction with accompanying drawing.

Like Fig. 1～shown in Figure 5, the electric connector of present embodiment includes a plurality of mutual splicings in insulating base 1 together, and the front of each pedestal 1 offers the wiring hole 11 that can supply lead to insert; Each pedestal 1 internal fixation is provided with weld tabs 2, and weld tabs 2 plays the effect of carrying object, is used to realize the electrical connection between lead and the circuit board; Weld tabs 2 is provided with shell fragment 3, and shell fragment 3 includes one to has all the time with the offset free end 311 and of trend of weld tabs 2 and be connected the stiff end 321 on the weld tabs 2; Pedestal top is equipped with button 4, and the free end 311 of the bottom of knob 4 and shell fragment 3 offsets, and the button 4 of down admiring can make the free end 311 of shell fragment 3 be separated with weld tabs 2.

In order to improve the clamping force of shell fragment 3; The cross section of shell fragment 3 is V-shaped; Shell fragment comprises first side 31 that is connected with free end 311 and the second side 32 that is connected with stiff end 321, for the ease of with the installation of shell fragment 3 in pedestal 1, is an arc sections 33 in the transition region that connects first side 31 and second side 32; Better contact effect in order to reach with weld tabs 2, the free end 311 of shell fragment 3 sticks up to turning up along 31 edges, first side of this shell fragment 3;

The inwall of pedestal 1 be formed with one vertical outwards and with the suitable reference columns 12 of arc sections 33 sizes, the shell fragment 3 of this V-structure makes the distance of free end 311 and stiff end 321 increase, shell fragment fully opens, and makes that the clamping force of shell fragment is bigger, uses more reliable;

On the end face of pedestal 1, also be connected with one and be used for the end cap 5 that end face seals; Connection for the ease of end cap 5 and pedestal 1; The sidewall of pedestal 1 end face is provided with four splicing salient points 13, and wherein three salient points are arranged on the end face sidewall of pedestal 1, and another salient point is arranged on the end of pedestal reference column 12; Correspondingly, on end cap 5, offer four apertures 51 that can supply corresponding assembly pin to insert.

The weld tabs 2 of present embodiment includes a current-carrying mainboard 21, and current-carrying mainboard 21 is an integral type panel, makes the current-carrying area increase, and has improved the electric conductivity of electric connector; One side of this current-carrying mainboard 21 forms the card base 25 of U-shaped opening; Weld tabs card base between the adjacent susceptors is interconnected; Be set with column electric-conductor 6 on the end cap 5, this electric-conductor 6 is located in the card base of weld tabs, can realize the short circuit conducting between each weld tabs; The outside projection in the bottom of this current-carrying mainboard 21 has the support chip 22 that can offset with stiff end 321 bottoms of shell fragment 3; The upper edge of current-carrying mainboard 21 outwards turns down the rib 23 that formation one can offset with free end 311 tops of shell fragment 3, and the current-carrying mainboard 21 of weld tabs 2, supporting bracket 22 and rib 23 form C type cross sections; The bottom of weld tabs 2 is also one-body molded to have two both sides that lay respectively at support chip 22 and front and back to stagger and the leg 24 established, and staggering and can effectively increase creepage distance in leg 24 front and back, improves the proof voltage value of this electric connector, promoted the overall performance of electric connector.

In order to realize being fixedly connected of shell fragment 3 and weld tabs 2; 32 edges, second side of shell fragment 3 offer a square draw-in groove 322; The current-carrying mainboard 21 of weld tabs 2 offers a breach 211 in the side near support chip 22; The right edge of this breach 211 and current-carrying mainboard 21 form one can with the suitable waist type portion 212 of the openings of sizes of square draw-in groove 322, draw-in groove 322 is fastened in the waist type portion 212 of this current-carrying mainboard 21 and realizes the stiff end 321 of shell fragment 3 and being connected of weld tabs 2 then, during installation; As long as the waist type portion 212 that the draw-in groove 322 of the second side 32 of shell fragment 3 is aimed at weld tabs 2 current-carrying mainboards 21; Just can shell fragment 3 be connected on the weld tabs 2, make that the syndeton of shell fragment 3 and weld tabs 2 is simpler, installation and removal are also more convenient;

Present embodiment improves existing weld tabs ground structure; On the current-carrying mainboard of weld tabs, card base is set; Promptly can realize the short circuit conducting between each weld tabs through in card base, plugging electric-conductor 6; This structure can effectively be avoided in the prior art earth connection being arranged at the defective on the circuit board, has improved the reliability of ground protection effectively.

Claims

1. an electric connector includes

2. electric connector according to claim 1; It is characterized in that: the outside projection in the bottom of said current-carrying mainboard has the support chip that can offset with the stiff end of said shell fragment bottom; The upper edge of this current-carrying mainboard outwards turns down the rib that formation one can offset with the free end top of said shell fragment; Current-carrying mainboard, support chip and the rib of said weld tabs forms a C type cross section, the bottom of said weld tabs is also one-body molded have two lay respectively at said support chip both sides and front and back stagger and the leg established.

3. electric connector according to claim 1; It is characterized in that: said shell fragment cross section is V-shaped; The arc sections that includes the end and be said free-ended first side, end and be the second side of said stiff end and connect said first side and second side, the inwall of said pedestal be formed with one outwards vertical and with the suitable reference column of said arc sections size.

4. electric connector according to claim 3; It is characterized in that: the edge, second side of said shell fragment offers a square draw-in groove; The current-carrying mainboard of said weld tabs offers a breach in the side near said support chip; The side of this breach and said current-carrying mainboard form one can with the suitable waist type portion of the openings of sizes of said square draw-in groove, said draw-in groove is fastened in the waist type portion of this current-carrying mainboard and realizes the stiff end of said shell fragment and being connected of said weld tabs.