CN1251365C

CN1251365C - Electric connector manufacture and its products

Info

Publication number: CN1251365C
Application number: CN 01125887
Authority: CN
Inventors: 何宜泽; 李时恺
Original assignee: Molex LLC
Current assignee: Molex LLC
Priority date: 2001-08-27
Filing date: 2001-08-27
Publication date: 2006-04-12
Anticipated expiration: 2021-08-27
Also published as: CN1407675A

Abstract

The present invention provides a making method and a product of an electric connector. The method mainly comprises the steps that a plurality of conductive terminals and requires plate locking members are stamped and formed in a stamping mode on a thin metal material belt for causing the formed conductive terminals and the plate locking members on the metal material belt to be contained in a mould for forming an insulating casing to cause the conductive terminals and fixing members to be integrally formed with the insulating casing in a burying way so as to form an electric connector. Because of the arrangement of the plate locking members, the electric connector can be buckled with a circuit substrate, which can resist the stress of the electric connector while in inserting connection or accident collision so as to improve the positioning performance of the insulating casing and the circuit substrate and avoid the destruction of the conductive terminals.

Description

Electric connector making method and goods thereof

Technical field

The present invention relates to a kind of electric connector making method and goods thereof, particularly a kind of manufacture method, but the electric connector that manufacturing structure is firm and dependability is good with high efficiency.

Background technology

Fig. 1 and Fig. 2 illustrate relevant electric connector 1 structure and the state when being electrically connected with a circuit substrate 3, this electric connector 1 can supply a mateable electrical connector that is complementary (figure does not show) to peg graft, and then makes this mateable electrical connector to transmit electric signal with circuit substrate 3.This electric connector 1 comprises that an insulation shell 10 and is fixed in the conducting terminal group 2 on the insulation shell 10.Wherein, this insulation shell 10 is formed with a body that is rectangle 11 and connects a Plug Division 12 of body 11, one leads a slotting portion 13 and a support portion 14, and body 11 has one for first 111 of mateable electrical connector contact and one relative with first 111 second 112, and the two ends of its length bearing of trend respectively have a relative first end 113 and a second end 114, connect first 111 and extend to the second end 114 places by first end 113 and can form two relative one first lateral margin face 115 and one second lateral margin faces 116 with second 112, make the second lateral margin face 116 be provided with several terminal that connects first 111 and second 112 perforation 117 in body 11 in addition towards circuit substrate 3.In addition, Plug Division 12 is positioned on first 111 and outwards protrudes to the direction away from first 111, it is formed with a composition surface 121 in a side that is same as the first lateral margin face, 115 directions, opposite side with respect to composition surface 121 then forms a back side 122, composition surface 121 is provided with bore a hole 117 positions and to first 111 of body 11 terminal containing groove 1211 that extends of several corresponding terminals, and composition surface 121 is provided with the together fool proof projection 1212 of the first lateral margin face, 115 directions protrusion near a side of the second end 114 of

body

11, and 122 places, the back side then are provided with a blocking groove 1221.This is led and inserts portion 13 and also be positioned on first 111 of body 11 near its first end 113 places to outwards protruding away from first 111 direction, and make itself and 12 of Plug Divisions have a gap, lead and insert portion 13 and then be provided with a guiding conduit 131 near a side of Plug Division 12, being 14 of support portions in addition is positioned at the second end 114 positions of body 11 with respect to leading the position of inserting portion 13.And, conducting terminal group 2 comprises the conducting terminal 21 of several Zhi Binglie, each conducting terminal 21 has one first contact site 211 and second contact site 212 with respect to first contact site 211, first contact site 211 can ccontainingly be fixed in the relative terminal containing groove 1211 of Plug Division 12, and second contact site 212 then can pass terminal perforation 117 backs of body 11 and be revealed in second 112 outside of body 11.

When electric connector 1 is pegged graft with the mateable electrical connector that is complementary, can move in it with the projection that allows to be relatively arranged on the mateable electrical connector by means of leading the guiding conduit 131 of inserting portion 13, so that mateable electrical connector can be smoothly and Plug Division 12 peg graft, and designed fool proof projection 1212 has the effect that prevents that the user from inserting the coupled connector reverse side on the Plug Division 12, after mateable electrical connector is pegged graft with Plug Division 12 fully can by means of the blocking groove 1221 at 12 back sides 122, Plug Division be oppositely arranged on blocking projection on the mateable electrical connector and produce interference and locate, at this moment, mateable electrical connector can electrically contact first contact site 211 of each conducting terminal 21, and, circuit substrate 3 is electrically connected to transmit electric signal with the setting of mateable electrical connector by electric connector 1 because of second contact site 212 of conducting terminal 21 is to be welded on the circuit substrate 3.

But by above-mentioned relevant electric connector 1 structure, whole electric connector 1 is to reach with the welding of circuit substrate 3 by second contact site 212 of each conducting terminal 21 with fixedly we can say of circuit substrate 3 fully, therefore significantly, in fact the insulation shell 10 of electric connector 1 does not have direct annexation with circuit substrate 3, and because when the mateable electrical connector that is complementary combines with electric connector 1, on the one hand because user's application of force size and direction might not, and other direction has the cause of leading the portion of inserting 13 designs based on insulation shell 10, the point of application when making grafting often concentrates on to lead to be inserted in the portion 13 and approaching first end 113 positions of inserting portion 13 of leading on the body 11, but insulation shell 10 does not have direct annexation with circuit substrate 3, application of force when so the user pegs graft mateable electrical connector, or the mateable electrical connector after having pegged graft is when being subjected to the collision of horizontal strength, the strength that is produced will all be born with the welding place of circuit substrate 3 by second contact site 212 of each conducting terminal 21, yet the force-bearing situation of each conducting terminal 21 is led first end 113 places and the inequality of inserting portion 13 and body 11 because of the application of force will concentrate on, the weld that is positioned at away from the conducting terminal 21 at first end 113 places of body 11 and circuit substrate 3 will bear maximum shear stress, and may cause this conducting terminal 21 to make electric connector 1 ineffective with the destruction of circuit substrate 3 welds, especially when second contact site 212 of conducting terminal 21 be when being electrically connected with circuit substrate 3 with surface mounted technology (SMT), the possibility of its destruction is more serious.So, be necessary under the condition that does not change electric connector 1 specification, to improve its polarization that is connected with circuit substrate 3 in fact based on the fixed consideration between electric connector 1 and the circuit substrate 3.

In addition, with regard to manufacture process, because each conducting terminal 21 of conducting terminal group 2 must be inserted on the body 11 in the corresponding terminal perforation 117, first contact site 211 of each conducting terminal 21 can corresponding be placed in the relative terminal containing groove 1211, second contact site 212 then can pass outside second 112 of body 11, therefore no matter be to use artificial or mechanical mode is inserted terminals perforation 117 with conducting terminal 21, all must increase the program of inserting together, if by manually carrying out, its assembly cost will further increase, in addition for naturally being positioned in the terminal perforation 117 of insulation shell 10 in the mode that fixes because of conducting terminal 21, therefore influenced by external force and come off in the terminal perforation 117 of the housing 10 that insulate certainly, so unsatisfactory aspect the linking steady character of manufacture process and conducting terminal 21.

Summary of the invention

Therefore, main purpose of the present invention provides the method for the high manufacturing electric connector of a kind of production efficiency, and firm its service-strong electric connector of structure.

Electric connector making method of the present invention mainly be on a thin metal material belt with impact style with several conducting terminals and required fixture drawing, these conducting terminals and fixture are still linked to each other with this metal material belt, and prepare a mould, having one in this mould flows and in order to the die cavity of this insulation shell that is shaped for insulating material, make the conducting terminal and the fixture of formed thereby on this metal material belt can be placed in specific location in this die cavity, afterwards, fill insulant in the die cavity of this mould, treat that the solid firmly back of insulating material forms this insulation shell, and this conducting terminal and fixture promptly combine with this insulation shell in the mode of imbedding, at last, excise the unwanted part of other except that this conducting terminal and fixture on this metal material belt and become electric connector goods.

The electric connector that utilizes this method to produce comprises an insulation shell, a conducting terminal group and at least one fixture.This insulation shell is roughly similar to aforementioned structure to the conducting terminal group, and be primarily characterized in that: the central part of this conducting terminal can directly be coated by this insulation shell in the process that insulation shell is shaped, make that conducting terminal does not only need to combine with insulation shell in the mode of inserting, it does not also have the phenomenon of separating that comes off and takes place.On insulation shell, increase connecting portion in addition and corresponding to the anchor structure of connecting portion, and fixture has one and is connected in the embedding part of clamping part for the clamping part and that is buckled in circuit substrate, the embedding part of fixture when forming, insulation shell is also coated by insulation shell, can be by its clamping part and affixed with circuit substrate, therefore electric connector is stressed in the time of can resisting grafting or accident collision, and the polarization of raising insulation shell and circuit substrate, and then avoid the destruction of conducting terminal to take place.

Description of drawings

Other characteristics of the present invention and advantage in the detailed description of the following cooperation preferred embodiment of being done with reference to the accompanying drawings, can clearly be understood, in the accompanying drawings:

Fig. 1 is a kind of structure schematic appearance of associated electrical connector.

Fig. 2 is the structure schematic appearance of another angle of the electric connector of Fig. 1.

Fig. 3 is that the conducting terminal of a preferred embodiment of the present invention and fixture form in the structural representation on the metal material belt.

Fig. 4 is the insulation shell shaping back coated with conductive terminal of this preferred embodiment and the structural representation of fixture.

Fig. 5 is the structural representation of the final electric connector after not needing partly on the excision metal material belt of this preferred embodiment.

Fig. 6 uses the electric connector of method manufacturing of the present invention and the assembling schematic diagram of circuit substrate.

Fig. 7 is the schematic appearance of looking up angle of electric connector among Fig. 6.

Fig. 8 is the schematic appearance of looking up angle after the combination of electric connector and circuit substrate among Fig. 6.

Fig. 9 is the another kind of structural representation of Fig. 6 electric connector, and the bottom surface of connecting portion and the form that the insulation shell second lateral margin mask has difference in height mainly are described.

Figure 10 is the electric connector of Fig. 9 and the compound mode schematic diagram of circuit substrate, so that heavy board-like assembling mode to be described.

Embodiment

See also Fig. 3, Fig. 4 and Fig. 5, the manufacture method of electric connector 1 of the present invention is mainly under the situation based on original electric connector structure, forgo and insert insulation shell and reach the structure that mutually combines with conducting terminal in most traditional electrical connector, its step is as follows:

At first, as shown in Figure 3, on a thin metal material belt 4 with impact style with several conducting terminals 21 and required plate latch fitting 15 drawings, and make these conducting terminals 21 and plate latch fitting 15 still keep linking to each other with metal material belt 4 partly, in this example,, can reprocess after 15 punching out of plate latch fitting and be bent into required form for cooperating final product structure required, because pressing operation is a continuous process, so can on metal material belt 4, produce continuously.

Secondly, prepare a mould (figure does not show), make to have one in the mould and flow and, make the conducting terminal 21 of formed thereby on the metal material belt 4 and plate latch fitting 15 can be placed in specific location in the die cavity in order to the die cavity of this insulation shell that is shaped for insulating material.

Then, fill insulant in the die cavity of mould, insulating material is generally flowable plastics material, treat that the solid firmly back of insulating material forms the insulation shell 10 corresponding to the die cavity shape, at this moment, as shown in Figure 4, conducting terminal 21 and plate latch fitting 14 promptly are combined as a whole with mode and the insulation shell of imbedding 10.

At last, as shown in Figure 5, the excision metal material belt 4 on except conducting terminal 21 and plate latch fitting 14 other unwanted parts and become an electric connector 1.

By the resulting electric connector 1 of above-mentioned manufacture process, similar to aforementioned normalized electric connector, please refer to Fig. 6, Fig. 7 and shown in Figure 8, mainly comprise an insulation shell 10, a conducting terminal group 2 and at least one plate latch fitting 15, present embodiment is example to use two plate latch fittings 15.In the following drawings, the structure identical with the aforementioned electric connector represented with identical label.

This conducting terminal group 2 is to utilize the impact style once-forming on a metal material belt, include the conducting terminal 21 of several Zhi Binglie, each conducting terminal 21 all has one first contact site 211 and one second contact site 212, first contact site 211 is to electrically contact for a mateable electrical connector that is complementary (figure does not show), and second contact site 212 is then in order to be electrically connected a circuit substrate 3.

This plate latch fitting 15 is to be same as on the metal material belt with conducting terminal group 2 one to be shaped, have one and be connected in the embedding part 151 of clamping part 152 for the clamping part 152 and that is buckled in circuit substrate 3, in the middle of this example, it is one I-shaped that embedding part 151 roughly is, yet need not be limited to this shape, as long as be difficult for after imbedding the shape of deviating from also can, clamping part 152 then is positioned at the terminal of embedding part 151 and is formed with that the two-phase subtend is outer to be protruded and the hook portion 1521 of elastically deformable.

This insulation shell 10 makes it be formed with a body that is rectangle 11 equally by means of the design of the die cavity of mould and slotting portion 13 is led in the Plug Division 12 and that is connected in body 11.This body 11 have one for first 111 of mateable electrical connector contact and one with first 111 second 112 and the two ends of its length bearing of trend respectively have a relative first end 113 and a second end 114, connect first 111 and extend to the second end 114 places by first end 113 and can form two relative one first lateral margin face 115 and one second lateral margin faces 116 with second 112, when assembling, the first lateral margin face 115 and the second lateral margin face 116 all can be towards circuit substrate 3 assemblings, in this example, be to be assembled into example towards circuit substrate 3 with the second lateral margin face 116.Outwards protrude to the direction away from first 111 and this Plug Division 12 is positioned on first 111, it is formed with a composition surface 121 and a back side 122 equally, also is provided with a fool proof projection 1212 on the

composition surface

121, and 122 places, the back side then are provided with a blocking groove 1221.This is led and inserts portion 13 and also outwards protrude from first 111 of body 11, and makes its and 12 of Plug Divisions have a gap, leads to insert portion 13 and then be provided with one near a side of Plug Division 12 and guide conduit 131.Support portion 14 is inserted portion 13 and is symmetric form and is positioned at body 11 near on first 111 of the second end 114 positions and protrude to the direction away from first 111 with leading approximately.In addition, this connecting portion 14 is separately positioned on body 11 near protruding on first end 113 and the second end 114 second 112 and along extending away from second 112 direction, the bottom surface 142, the end face 141 and with respect to bottom surface 142 that make connecting portion 14 have a contact circuit substrate 3 connect connecting portion 14 and the connecting hole 143 of the bottom surface 142 that arrives by end face 141, make a fixing hole 32 contrapositions that are oppositely arranged on connecting hole 143 and the circuit substrate 3.

Because in the manufacture process, conducting terminal 21 is the die cavitys that place mould with plate latch fitting 15, therefore behind insulation shell 10 solidified formings, the body 11 that the embedding part 151 of the middle body of conducting terminal 21 and plate latch fitting 15 can be insulation shell 10 coats, and make first contact site 211 of conducting terminal 21 combine and to make first contact site 211 can partly be revealed on the composition surface 121 with Plug Division 12, and second contact site 212 of conducting terminal 21 can protrude from second 112 outside, the clamping part 152 of plate latch fitting 15 then can protrude from outside the bottom surface 142 of connecting portion 14, make the surface of contact circuit substrate 3 simultaneously, bottom surface 142 of two connecting portions 14 on the insulation shell 10, second contact site 212 of conducting terminal 21 then is welded on the pad relative on the circuit substrate 3 31 with surface mounted technology and is electrically connected, and makes the clamping part 152 of plate latch fitting 15 can pass the connecting hole 143 of connecting portion 14 again and is fastened on by means of its hook portion 1521 in the fixing hole 32 of circuit substrate 3.Afterwards, the blocking groove 1221 of leading the guiding conduit 131 of inserting portion 13 and Plug Division 12 of insulation shell 10 can make the mateable electrical connector that is complementary engage and locate with Plug Division 12 and then make mateable electrical connector electrically contact first contact site 211 of each conducting terminal 21 and be electrically connected with the transmission electric signal with circuit substrate 3.Other is, by the relative position of two plate latch fittings, 15 restriction insulation shells 10 with circuit substrate 3, when user's application of force is pegged graft mateable electrical connector, when the mateable electrical connector after perhaps pegging graft is subjected to the cross force collision, plate latch fitting 15 can be resisted most active force, but not structure is born by conducting terminal 21 completely as described above, so can be under the prerequisite that does not need significantly to change the normalization electric connector structure and can improve the polarization of insulation shell 10 and circuit substrate 3, avoid conducting terminal 21 to be damaged and electric connector 1 was lost efficacy.

And under the consideration of actual assembled, as Fig. 9 and shown in Figure 10,142 thickness can be positioned at the width of 116 in the first lateral margin face, 115 to second lateral margin faces less than second 112 of body 11 to the end face 141 of connecting portion 14 to the bottom surface, make bottom surface 152 be formed with a difference in height with respect to the second lateral margin face 116 towards circuit substrate 3, make bottom surface 152 when contact circuit substrate 3 surfaces, the second lateral margin face 116 that is positioned at the body 11 of circuit substrate 3 plate edge rectangular indentation can be lower than circuit substrate 3 surface locations relatively, form general this area so-called " heavy board-like " connected mode, purpose is making electric connector 1 and circuit substrate 3 combination back whole heights to reduce.

Comprehensively above-mentioned, the present invention is main be characterised in that necessary conducting terminal 21 in the middle of the electric connector 1 and the plate latch fitting 15 that increased integrally formed with mode and the insulation shell 10 imbedded, not only exempt conducting terminal loaded down with trivial details of aforementioned electric connector and insertion that cost of manufacture is higher in conjunction with program, conducting terminal 21 and plate latch fitting 15 firmly are incorporated in the insulation shell 10, make relative productivity significantly improve.Again owing to increased connecting portion 14 and corresponding plate latch fitting 15 structures on the structure, make insulation shell 10 can be directly and circuit substrate 3 produce firm annexation, do not needing significantly to revise under the prerequisite of electric connector 1 structure, make electric connector 1 obtain best steadiness, corresponding reliability of using also can significantly promote.

The above person, it only is preferred embodiment of the present invention, should not limit the scope of the invention with this, promptly the simple equivalent of being done according to claims of the present invention and description of the invention content generally changes and modifies, and all should still belong in the scope that patent of the present invention contains.

Claims

1. electric connector making method is used to make an electric connector that comprises insulation shell, conducting terminal and fixture, and its step comprises:

(1) on a thin metal material belt with impact style with several conducting terminals and required fixture drawing, and this conducting terminal and fixture are still linked to each other with this metal material belt;

(2) preparation one mould has one and flows and in order to the die cavity of this insulation shell that is shaped, make the conducting terminal of formed thereby on this metal material belt and fixture be placed in specific location in this die cavity for insulating material in this mould;

(3) fill insulant in the die cavity of mould treat that insulating material solidifies the back and forms this insulation shell, and this conducting terminal and fixture combines with this insulation shell in the mode of imbedding promptly;

(4) excise the unwanted part of other except that this conducting terminal and fixture on this metal material belt and become an electric connector.

2. electric connector making method as claimed in claim 1 is characterized in that, the fixture of this step (1) can further be bent into required in conjunction with shape on this metal material belt again.

3. electric connector making method as claimed in claim 1 is characterized in that, this fixture is a plate latch fitting.

4. an electric connector is electrically connected on a circuit substrate and the grafting of confession one mateable electrical connector, and this electric connector comprises:

One conducting terminal group, comprise the conducting terminal with the several Zhi Binglies of impact style once-forming on a metal material belt, each conducting terminal has first contact site and second contact site that is electrically connected with this circuit substrate with respect to this first contact site that supplies this mateable electrical connector to electrically contact;

At least one fixture is same as on this metal material belt with this conducting terminal group one and is shaped, and this fixture has one and is connected in the embedding part of this clamping part for the clamping part and that is connected in this circuit substrate; And

One insulation shell is to utilize a mould and integrally formed with this conducting terminal group and fixture, and the portion of inserting and at least one connecting portion are led in the Plug Division, that this insulation shell is formed with a body that is rectangle and is connected in this body;

This body has one for first of the contact of this mateable electrical connector and one relative with this first second, and the two ends of its length bearing of trend respectively have a relative first end and a second end, connecting this first extends to the second end place with this second by this first end and forms two relative one first lateral margin face and one second lateral margin faces, make this first lateral margin face or the second lateral margin face towards this circuit substrate, and the middle body of this conducting terminal is coated by this body, and second contact site of this conducting terminal can be protruded out outside this second to be electrically connected on this circuit substrate;

This plugging position goes up and along outwards protruding away from this direction of first in this first, this Plug Division is formed with a composition surface in a side that is same as this first lateral margin face direction, opposite side with respect to this place, composition surface then forms a back side, make first contact site of this conducting terminal combine and make its first contact site partly to be revealed on this composition surface with this Plug Division, and this composition surface near a side of this second end be provided with one with this first lateral margin face identical faces to the fool proof projection that protrudes, this place, back side then is provided with a blocking groove;

This lead the portion that inserts also be positioned at this first go up near this first end place along outwards protrude away from this direction of first and make its and this lead between slotting portion and have a gap, this is led the portion that inserts and then is provided with a guiding conduit near a side of this Plug Division, lead the guiding conduit of the portion that inserts and the blocking groove of this Plug Division can make this mateable electrical connector engage and locate with this Plug Division by means of this, and then make this mateable electrical connector electrically contact first contact site of this conducting terminal;

This connecting portion is to go up and protrude to extend away from this direction of second from second of this body, the bottom surface that makes this connecting portion have this circuit substrate of contact reaches the end face with respect to this bottom surface, make this connecting portion can coat the embedding part of this fixture, and the clamping part that makes this fixture protrudes out outside this bottom surface and the fixing hole buckle of this circuit substrate, and then make this insulation shell and this circuit substrate relative positioning.

5. electric connector as claimed in claim 4 is characterized in that, the position that second face of this body is positioned at contiguous these conducting terminal group both sides respectively is provided with this connecting portion and this part that is relatively fixed.

6. electric connector as claimed in claim 4, it is characterized in that, the end of the clamping part of this fixture is formed with the hook portion of two outside relatively protrusions and elastically deformable, make this clamping part can pass the fixing hole of this circuit substrate, and make this hook portion be able to the peritreme of fastener in the relative another side of this fixing hole, improve the polarization of this insulation shell and this circuit substrate relative position thus.

7. electric connector as claimed in claim 4, it is characterized in that, the end face of this connecting portion is to the thickness of the bottom surface width less than second of this body, make this bottom surface form difference in height towards the first lateral margin face or the second lateral margin face of this circuit substrate with respect to this body, when making this bottom surface contact this circuit substrate surface, this body is lower than this circuit substrate surface location relatively towards the first lateral margin face or the second lateral margin face of this circuit substrate, makes this electric connector and circuit substrate combination back whole height reduce.

8. electric connector as claimed in claim 4 is characterized in that, goes up for first of this body and is provided with a support portion near this second end position, makes this support portion lead the portion of inserting with respect to this and protrudes to extending away from this first direction.

9. electric connector as claimed in claim 4 is characterized in that, this fixture is a plate latch fitting.