CN1274069C

CN1274069C - Electric connector manufacture and its products

Info

Publication number: CN1274069C
Application number: CN 01125888
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: 2006-09-06
Anticipated expiration: 2021-08-27
Also published as: CN1407676A

Abstract

The present invention provides a manufacturing method and a product of an electric connector. The method mainly comprises the steps that a plurality of conductive terminals and require fixing members are stamped and formed by using a stamping way on a thin metal material belt, the formed conductive terminals and the fixing members on the metal material belt can be contained in a mould for forming an insulating casing, and the conductive terminals and the fixing members are integrally formed with the insulating casing in a burying way so as to form an electric connector product. Because of the arrangement of the fixing members, the electric connector can also be fixedly connected with a circuit substrate; thus, the present invention 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 displacement or 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, be meant a kind of manufacture method especially with high efficiency, but the electric connector that production structure is firm, dependability is good.

Background technology

Please refer to Figure 1 and Figure 2, the structure of the electric connector 1 that its explanation one is relevant and the state when being electrically connected thereof 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 Plug Division 12 and of a body that is rectangle 11 and connection body 11 and leads the portion 13 that inserts, and body 11 has one for first 111 of mateable electrical connector contact and one relative with first 111 and in order to second 112 of contact circuit substrate 3, 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, be provided with several terminals that connect first 111 and second 112 in body 11 in addition and bore a hole 117 with second 112.In addition, Plug Division 12 is to be positioned on first 111 and along outwards protruding away from first 111 direction, 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 in addition, 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.In addition, conducting terminal group 2 includes 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 conducting terminal 21 that is positioned at away from first end 113 places of body 11 will bear maximum pulling force, and the phenomenon that may cause this conducting terminal 21 to break away from the terminal containing groove 1211 of Plug Division 12 takes place, and What is more causes conducting terminal 21 to make electric connector 1 ineffective with the destruction of circuit substrate 3 welds.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, naturally must be positioned in the terminal perforation 117 of insulation shell 10 in the mode that fixes because of conducting terminal 21 in addition, therefore influenced by external force and in the terminal perforation 117 of insulation shell 10, come off, so unsatisfactory from the linking steady character of manufacture process and conducting terminal 21.

Summary of the invention

Therefore, main purpose of the present invention provides high electric connector making method of a kind of production efficiency and goods thereof, and the goods of being produced have firm structure and good reliability.

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, make this fixture have the embedding part that a fixed part and is connected in this fixed part, this conducting terminal 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 be placed in specific location in this die cavity, afterwards, make the interior fill insulant of 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 originally roughly similar to aforementioned structure to the conducting terminal group, and be primarily characterized in that: the central part of this conducting terminal is directly 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.The anchor structure of Zeng Jiaing in addition, it has one and is connected in the embedding part of fixed part for the fixed part and that is fixed in circuit substrate, and the embedding part of fixture is also coated by insulation shell when insulation shell forms.Affixed by fixed part and circuit substrate, electric connector is stressed in the time of can resisting grafting or accident collision thus, and improves the polarization of insulation shell and circuit substrate, and then avoids conducting terminal displacement or destruction.

Description of drawings

Other features and advantages of the present invention in the detailed description of the preferred embodiment of doing below with reference to accompanying drawing, 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 final electric connector article construction schematic diagram after not needing partly on the excision metal material belt of this preferred embodiment.

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

Fig. 7 is the schematic appearance of Fig. 6 electric connector and another angle of circuit substrate combination back.

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 of traditional electrical connectors, 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 14 drawings of required fixture, and make these conducting terminals 21 and fixture 14 still keep linking to each other with metal material belt 4 partly, in this example,, can reprocess after fixture 14 punching out and be bent into required form for cooperating final product structure required, because drawing is a continuous process, so can produce continuously on metal material belt 4.

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 fixture 14 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 fixture 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 fixture 14 other unwanted parts and become an electric connector 1 goods.

By the resulting electric connector 1 of above-mentioned manufacture process, as Figure 6 and Figure 7, similar to aforementioned normalized electric connector, mainly comprise an insulation shell 10, a conducting terminal group 2 and at least one fixture 14, present embodiment is example to use two fixtures 14.In the middle of the expression of 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 fixture 14 is to be same as on the metal material belt with conducting terminal group 2 one to be shaped, can be more simultaneously with reference to Fig. 3, have one and be connected in the embedding part 141 of fixed part 142 for the fixed part 142 and that is fixed in circuit substrate 3, in the middle of this example, embedding part 141 roughly is a T font, certainly also can be other and be difficult for the shape of deviating from after imbedding, fixed part 142 then is positioned at the end of embedding part 141.

This insulation shell 10 makes it be formed with a body that is rectangle 11 equally and slotting portion 13 is led in the Plug Division 12 and that is connected in body 11 by means of the design of the die cavity of mould.This body 11 has one for first 111 of mateable electrical connector contact and one relative with first 111 and in order to second 112 of contact circuit substrate 3 and the two ends of its length bearing of trend respectively have a relative first end 113 and a second end 114, connects first 111 and extend to the second end 114 places with second 112 by first end 113 to form two relative one first lateral margin face 115 and one second lateral margin faces 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 in addition, 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.

Because in the manufacture process, conducting terminal 21 is the die cavitys that place mould with fixture 14, therefore behind insulation shell 10 solidified formings, the body 11 that the embedding part 141 of the middle body of conducting terminal 21 and fixture 14 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 the fixed part 142 of second contact site 212 of conducting terminal 21 and fixture 14 can protrude from second 112 outside, with circuit substrate 3 assemblings the time, cooperate each conducting terminal 21 position to be provided with several welding holes 31 on the circuit substrate 3, and cooperate fixed part 142 positions of fixture 14 then to be provided with the hole 32 that is relatively fixed, because the fixed part 142 of fixture 14 and second contact site 212 of each conducting terminal 21 all protrude in outside second 112 of insulation shell 10, when second contact site 212 of conducting terminal 21 is welded on the circuit substrate 3 through the tin stove, the fixed part 142 of fixture 14 also is welded on the circuit substrate 3 simultaneously.Afterwards, the guiding conduit 131 that the leading of insulation shell 10 inserted portion 13 and the blocking groove 1221 of Plug Division 12 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.In addition, by imbedding insulation shell 10 respectively near the fixture 14 of first end 113 with the second end 114 positions, can interconnect with the restriction relative displacement 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, fixture 14 can be resisted most active force, but not structure is born by conducting terminal 21 like that 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.

Comprehensively above-mentioned, the present invention is main to be characterised in that necessary conducting terminal 21 in the middle of electric connector 1 structure and the fixture 14 that increased is shaped with mode one and the insulation shell of imbedding 10, not only exempt conducting terminal loaded down with trivial details of aforementioned electric connector and insertion that manufacturing cost is higher in conjunction with program, conducting terminal 21 and fixture 14 firmly are incorporated in the insulation shell 10, make production efficiency significantly improve.Again owing to increased the structure of fixture 14 on the structure, when the conducting terminal 21 of electric connector 1 carries out weld job with circuit substrate 3, can be welded on the circuit substrate 3 simultaneously, 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 electric connector goods that comprise 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, make this fixture have the embedding part that a fixed part and is connected in this fixed part, and this conducting terminal and fixture 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 this mould treat that the solid firmly back of insulating material 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 electric connector goods.

2. electric connector making method as claimed in claim 1, wherein, the fixture of this step (1) further is bent into required combining form again on this metal material belt.

3. an electric connector can be 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 to be same as on this metal material belt with this conducting terminal group one to be shaped, and this fixture has one and is connected in the embedding part of this fixed part for the fixed part and that is fixed in this circuit substrate; And

One insulation shell is to utilize a mould and this conducting terminal group and this fixture and integrally formed, and the portion of inserting is led in the Plug Division and 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 and in order to contact second of this circuit substrate, 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, the middle body of this conducting terminal and the embedding part of this fixture are coated by this body, and second contact site of this conducting terminal and the fixed part of this fixture are protruded from outside this second, so that second contact site of this conducting terminal is electrically connected on this circuit substrate, and the fixed part of this fixture is fixed on this circuit substrate to improve the polarization of this insulation shell and this circuit substrate;

This plugging position goes up and along outwards protruding away from this direction of first in this first, and 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, making respectively, first contact site of this conducting terminal combines and makes this first contact site partly to be revealed on this composition surface with this Plug Division, this composition surface is provided with a fool proof projection to this first lateral margin face protrusion near a side of the second end of this body in addition, and this place, back side then is provided with a blocking groove;

This is led the portion that inserts and also is positioned at this first and goes up near this first end place along outwards protruding away from this direction of first, and make itself and this lead between the portion that inserts 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 makes this mateable electrical connector engage and locate with this Plug Division by means of this, and then make first contact site of this conducting terminal be electrically connected this mateable electrical connector.