CN201000958Y

CN201000958Y - Improved structure for electric connector

Info

Publication number: CN201000958Y
Application number: CNU2007201183838U
Authority: CN
Inventors: 蔡志鸿; 王团伟
Original assignee: Suyin Electronics Dongguan Co Ltd
Current assignee: Suyin Electronics Dongguan Co Ltd
Priority date: 2007-01-31
Filing date: 2007-01-31
Publication date: 2008-01-02
Anticipated expiration: 2017-01-31

Abstract

The utility model provides an improved structure for an electrical connector, which consists of an insulating main body and a plurality of conducting terminals; wherein a plurality of terminal arranged holes of the insulating main body are formed a convex shape, the plug pin of the terminal is contained through adopting the groove path of a bulging part, and a blocking part formed by the insulating main body on the bottom part of the groove path are utilized, to make a narrow mouth groove formed under the groove path, which is used for clipping and fixing the plug pin; an bended bunting part arranged on the conducting terminals mutually contacts with the blocking part formed by the insulating main body, the bunting part is composed of a first bending part, a second bending part, and a third bending part; because of the function of the narrow mouth groove, the situation that welding flux can not be flowed and adsorbed on the terminal contact part when the connector is welded and arranged on the circuit board can be avoided, to prevent the welding flux from flowing and adsorbing along a welded pin out of range, and then the siphoning phenomenon is caused.

Description

The electric connector structure-improved

Affiliated technical field

The utility model provides a kind of electric connector structure-improved, refer in particular to a kind of utilize the blocking part with the leg of conducting terminal in to intercept, flux is adsorbed to the electric connector that causes contact fault in the termination contact portion when preventing to weld.

Background technology

Computer and electronics technology fast development now, also strong towards calculation function, speed reaches the little direction of volume soon and strides forward, so structure set in the electronic product also must be toward miniature, and high-density packages develops, but use in maximum under the consideration of capacity, numbers of terminals in one electric connector is towards the majority development, therefore in limited being provided with in the space, spacing between the conducting terminal that is used to connect is more apparent intensive, make electric connector in the task difficulty of welded and installed during difficulty more in circuit board, used in amounts control quite accurate of tin material of fluxing, otherwise be difficult to guarantee quality.

Be illustrated in figure 1 as existing electric connector 3 generalized sections, the terminal 32 of this electric connector 3 is in the containing hole 35 that directly is inserted on the insulating body 31, and then terminal 32 formed a kink 34 from the below with vertical wall body 33 1 lateral bucklings, make 36 one-tenth of legs horizontal, form the surface and pasting type (SMT) connector; The type connector is being pasted on this type of surface that only present industry manufacturer is manufactured, all be to be welded on the printed circuit board (PCB) by installing with Reflow Soldering, but under some situation, flux is because of the tension force effect, can flow and be adsorbed to the shortcoming that causes contact fault in the termination contact portion, or solder flux can produce rainbow tin phenomenon, has a strong impact on the electric property of connector.

Therefore, at present electric connector existing defective when welding, be necessary existing technology is carried out structural improvement in fact, to provide a kind of performance preferable connector construction.

Summary of the invention

Main purpose of the present utility model is to provide a kind of electric connector structure-improved, utilize blocking part set on the insulating body to make the conduit that holds the terminal welding foot form a slot groove, the function that this slot groove has is for can the tack welding pin, make the fixing more firm of conducting terminal, make this connector welded and installed simultaneously when circuit board, can be kept out the absorption of flowing of flux, solder flux, prevent that flux is adsorbed to and cause contact that fault is arranged in the termination contact portion, or solder flux produce rainbow tin phenomenon.

Another purpose of the present utility model is to provide a kind of electric connector structure-improved, terminal structure is provided with a portion that supports that bends, utilizes this to support blocking part butt set on portion and the insulating body, and form an iris action, scolder can be isolated in the bottom of insulating body, can up not scurry suction.

Above-mentioned purpose of the present utility model, can be realized by following technical scheme: the utility model provides a kind of electric connector structure-improved, and it includes an insulating body, the conducting terminal of plural number; Wherein, this insulating body is provided with the terminal containing hole of plural number, these terminal containing holes are the convex structure, projection is outwards arranged, terminal containing hole system is made of the accepting hole of oral area and the conduit of projection, accepting hole is the clamping part in order to ccontaining terminal, conduit then is ccontaining Plug Division, on the insulating body of conduit bottom, be provided with a blocking part, this blocking part makes the bottom of conduit dwindle into a slot groove, this slot groove also is connected with the guiding groove of insulating body bottom transverse, and this slot groove not only can the tack welding pin, can hinder flux simultaneously, solder flux exceeds the absorption of further flowing of welding scope.

This conducting terminal is except existing clamping part, bending part at Plug Division and welding foot is bent into one to portion, the portion that should support is provided with first, second, third kink, form a step, when making conducting terminal insert the terminal containing hole by this step-like portion that supports, can connect with the blocking part of insulating body, second kink of conducting terminal Plug Division just in time is arranged in the slot groove of conduit bottom at this moment, and the welding foot of bending then places in the guiding groove of insulating body bottom transverse.

The utility model is by bending structure and the blocking part of insulating body and cooperating of slot groove of conducting terminal, can control the mobile absorption of this connector scaling powder, solder flux when welding assembly completely, the tension force of scaling powder, solder flux when alleviating welding in the mode of isolating, be unlikely to be adsorbed onto in the termination contact portion or generation rainbow tin phenomenon, to guarantee the quality of product.

For the personnel that utility model purpose of the present utility model and architectural feature can further be allowed be familiar with this technology understand, cooperate now appended graphic, with a specific embodiment to the utility model further instruction.

Description of drawings

Below in conjunction with drawings and Examples the utility model is further specified.

Fig. 1 is a prior art structure connector profile;

Fig. 2 is the utility model specific embodiment decomposing schematic representation;

Fig. 3 is the utility model specific embodiment insulating body different visual angles end view;

Fig. 4 is the utility model specific embodiment insulating body profile; And

Fig. 5 is the utility model specific embodiment profile.

1-conducting terminal among the figure, 2-insulating body, 11-first kink, 12-second kink, 13-the 3rd kink, the 14-welding foot, 15-Plug Division, 16-clamping part, 17-flat board, 18-breach, the 21-conduit, 22-accepting hole, 23-guiding groove, 24-blocking part, 25-slot groove

Embodiment.

As shown in Figure 2, be the utility model electric connector structure-improved one specific embodiment, this electric connector 5 is made of an insulating body 2, complex conduction terminal 1; And please in conjunction with Fig. 3, shown in Figure 4, this insulating body 2 is provided with the terminal containing hole of plural number, and these terminal containing holes are the convex structure, in the present embodiment, are the welding position of mating terminals, and the installation position of terminal containing hole is that projection is outwards arranged; System is made of the accepting hole 22 of oral area and the conduit 21 of projection, accepting hole 22 is the clamping parts 16 in order to ccontaining conducting terminal 1, conduit 21 then is the utility model unique design structure, it is Plug Division 15 in order to ccontaining conducting terminal 1, on the insulating body 2 of conduit 21 bottoms, be provided with a blocking part 24, this blocking part 24 be positioned at conduit 21 under, but sectional area is little than the sectional area of conduit 21, make the bottom of conduit 21 dwindle into a slot groove 25, these slot groove 25 sizes welding foot 14 proper and that conducting terminal 1 Plug Division 15 is extended is suitable, can wear for welding foot 14, this slot groove 25 also is connected with the guiding groove 23 of insulating body 2 bottom transverse, the function that this slot groove 25 has is for not only can tack welding pin 14, make the fixing more firm of conducting terminal 1, can hinder flux simultaneously, solder flux exceeds the absorption of further flowing of welding scope.

This conducting terminal 1 is a ㄩ type structure, except both sides parallel sides flat board 17 is provided with a breach 18 that is used to interfere the location at its edge, extend to form downwards outside the clamping part 16 by dull and stereotyped 17 again, its structure feature is: the Plug Division 15 of level is bent into one with the bending part of Plug Division 15 terminal formed welding foots 14 and supports portion, the portion that should support is provided with first, second, the

3rd kink

11,12,13, by first, second, the

3rd kink

11,12,13 continuous bending, form a step-like portion that supports, when making conducting terminal 1 insert the terminal containing hole by this step-like portion that supports, can connect with the blocking part 24 of insulating body 2, second kink 12 of conducting terminal 1 Plug Division 15 just in time is arranged in the slot groove 25 of conduit 21 bottoms at this moment, and the welding foot 14 of bending then places in the guiding groove 23 of insulating body 2 bottom transverse.

Please refer to shown in Figure 5, radicula portion when conducting terminal 1 Plug Division 15 is earlier through being bent to form first,

second kink

11,12, when being placed in the convex shape containing hole of insulating body 2 then, the step-like portion that supports of conducting terminal 1 supports portion and is just in time inserted by conduit 21, this moment, the welding foot 14 of bending just can not pass slot groove 25, second kink 12 to portion is resisted against on the blocking part 24 of insulating body 2 finishes the location, and then welding foot 14 bent out the 3rd kink 13, make welding foot 14 be bent into horizontal attitude, and place in the guiding groove 23 of insulating body 2 bottom transverse, finish whole number of assembling steps.

The utility model is by in insulating body 2 bottom conduits 21 bottoms blocking part 24 being set, utilize blocking part 24 to make conduit 21 reduce the structural design that forms slot groove 25, the welding foot 14 of conducting terminal 1 can closely be contacted with 25 formation of slot groove, and utilize on the conducting terminal 1 formed step-like to bilge construction, by first of the portion of supporting,

second kink

11,12 with the abutment action of described blocking part 24, make the fixing more firm of conducting terminal 1, and take this to form a buffer action, stop flux, solder flux is the absorption of further flowing in claimed range not, scaling powder when welding to alleviate, the tension force of solder flux is unlikely to be adsorbed onto in the termination contact portion or generation rainbow tin phenomenon.

Practical case and accompanying drawing that the utility model is lifted, only for the utility model is illustrated, be to make and be familiar with purpose and the effect that this operator can understand the utility model strictly according to the facts, but the utility model there is not any restriction, the utility model also can still have other variation execution mode, so allly be familiar with this operator and carry out other pattern under this case utility model spirit and implement not breaking away from, the equivalence that all should be considered as this case claim is implemented.

Claims

1. electric connector structure-improved, this electric connector includes an insulating body and plural conductive terminal, and this insulating body is provided with the terminal containing hole of plural number, it is characterized in that:

These terminal containing holes are the convex structure, system is made of the accepting hole of oral area and the conduit of projection, this conduit is the Plug Division in order to ccontaining conducting terminal, on the insulating body of conduit bottom, be provided with a blocking part, make the bottom of conduit dwindle into a slot groove, can wear for the welding foot of conducting terminal, this slot groove also is connected with the guiding groove of insulating body bottom transverse;

The bending part of the terminal formed welding foot in the Plug Division of this conducting terminal and Plug Division forms a step-like portion that supports by the continuous bending of first, second kink; By this step-like portion that supports, when conducting terminal inserts the terminal containing hole, can connect with the blocking part of insulating body, second kink of conducting terminal Plug Division just in time is arranged in the slot groove of conduit bottom at this moment; Welding foot through the bending of the 3rd kink then places in the guiding groove of insulating body bottom transverse.

2. electric connector structure-improved as claimed in claim 1, wherein, the installation position of terminal containing hole is that projection is outwards arranged.

3. electric connector structure-improved as claimed in claim 1, wherein, this blocking part be positioned at conduit under, but sectional area is little than the sectional area of conduit, so that conduit is reduced to the slot groove.

4. electric connector structure-improved as claimed in claim 1, wherein, this slot groove size welding foot proper and that the conducting terminal Plug Division is extended is suitable.