CN1248376C

CN1248376C - Making process and product of electric connector

Info

Publication number: CN1248376C
Application number: CN 01137432
Authority: CN
Inventors: 何宜泽; 李时恺
Original assignee: Molex LLC
Current assignee: Molex LLC
Priority date: 2001-11-08
Filing date: 2001-11-08
Publication date: 2006-03-29
Anticipated expiration: 2021-11-08
Also published as: CN1417902A

Abstract

The present invention provides a manufacturing method and a product of an electric connector. The method mainly comprises the steps: stamping and forming a plurality of conductive terminals on a thin metal material belt in a stamping way; making a mould; causing the mould to comprise a first mould and a second mould which can be mutually butted, wherein a first mould wall is formed on the first mould, and a second mould wall is correspondingly formed on the second mould; after combining the first mould and the second mould, casing the first mould wall and the second mould wall to jointly limit a mould cavity which is used for insulating materials to flow in and forming the shape of an electric connector; causing the conductive terminals to be contained in the mould cavity; placing a plurality of raised pushing needles corresponding to the conductive terminals on the second mould wall, and causing the pushing needles to respectively butt and push contact ends of the conductive terminals for tightly attaching the first mould wall so as to strengthen the positioning performance of the conductive terminals during production.

Description

Electric connector making method and goods thereof

Invention field

The invention relates to a kind of electric connector making method and goods thereof, be meant that especially a kind of plural number conducting terminal that is applied to can effectively prevent the manufacture method of conducting terminal off normal and the electric connector goods of made thereof with an internal mold method (Insert Mold) and an insulating base when one-body molded.

Prior art

As shown in Figures 1 and 2, demonstrate a kind of structure of electric connector 1 respectively, wherein shown in Figure 1 is to go up and then be the electric connector 1 of the vertical type that electrically connects to stand on the circuit board and with circuit board shown in electric connector 1, the second figure of the horizontal that electrically connects with circuit board in circuit board (figure do not show) with smooth.This electric connector 1 comprises an insulating base 10 and plural number props up the conducting terminal 11 that is contained in the insulating base 10, wherein, insulating base 10 has a body 100, one is connected one of body 100 side is positioned at the composition surface 102 of body 100 101 opposite sides in contrast to the Plug Division for a Plug Division 101 and that is complementary electric connector (figure does not show) combination, conducting terminal 11 then has a contact jaw 111 and an abutting end 112 in contrast to contact jaw 111, make contact jaw 111 can be emerging on the Plug Division 101 for the electrically usefulness of contact of electric connector that is complementary, abutting end 112 is then protruding to be exposed at outside the composition surface 102, in the middle of the electric connector 1 of as shown in Figure 1 horizontal, abutting end 112 can surface adhering technology (SMT) be electrically connected on the circuit board on the corresponding contact, in the middle of the electric connector 1 of vertical type and for example shown in Figure 2,112 of abutting ends can insert welding back formation electric connection in the corresponding welding hole on the circuit board relatively.And for the manufacturing process of making this kind electric connector 1, having a kind of is to utilize the mode of internal mold method (Insert Mold) to be made, as shown in Figure 3, it mainly is earlier required plural number to be propped up conducting terminal 11 to approach on the metal material belt 110 with the impact style drawing one, and the abutting end 112 of each conducting terminal 11 is still linked to each other with metal material belt 110, again as shown in Figure 4, use one to include the mould 2 that first mould 21 and that is positioned at the top is positioned at second mould 22 of below, make win mould 21 and inside, the mutual involutory back of second mould 22 can form a die cavity 23, the contact jaw 111 of a plural number conducting terminal 11 then is positioned in the die cavity 23, treat mode that insulating material penetrates with high pressure riddle in the die cavity 23 and cooling hard solid after, open mould 2 and excise the goods that conducting terminal 11 unwanted metal material belt 110 parts can form electric connector 1 as shown in Figure 1.

Yet, with regard on the practice of above-mentioned manufacturing process, because the contact jaw 111 of conducting terminal 11 does not have firm location among die cavity 23, therefore often when insulating material is injected die cavity 23, the insulating material that contact jaw 111 is subject to high-pressure flow impacts and sometimes just like producing the phenomenon of off normal up and down shown in Fig. 4 dotted line, also may produce left and right sides off normal in addition, thus, coat and can't on the Plug Division 101 of insulating base 10, reveal fully causing contact jaw 111 to be insulated material, perhaps make adjacent conductive terminal 11 contact jaw 111 mutually near or away from and depart from default spacing, in case during contact jaw 111 off normals of conducting terminal 11, the characteristic that electric connector 1 electrically contacts when pegging graft with the electric connector that is complementary will be influenced, not only need extra manufacturing process to be repaired, severe patient will form defective products and the empty cost that increases making.

Summary of the invention

Therefore, main purpose of the present invention, be provide a kind of can be with electric connector making method and the goods thereof of conducting terminal strong fix in die cavity.

So, electric connector making method of the present invention mainly is with impact style plural number to be propped up the conducting terminal drawing earlier on a thin metal material belt, make these conducting terminals respectively have a contact jaw and an abutting end, and the abutting end of each conducting terminal is still linked to each other with metal material belt.Prepare a mould again, make mould include one of can be involutory mutually first mould and one second mould, and first mould is formed with one first die wall, second mould then is formed with one second die wall relatively, first mould with make after second mould combines win die wall and second die wall define one jointly to flow and in order to the die cavity of shaping insulating base shape for insulating material, and make that the contact jaw of the conducting terminal of formed thereby is placed in specific location in the die cavity on the metal material belt, the abutting end of conducting terminal then is positioned at outside the die cavity, the contact jaw position corresponding to each conducting terminal further is provided with a plural number thimble to the first die wall direction projection on second die wall again, make contact jaw that these thimbles replace each conducting terminal respectively being close to first die wall, and then make the contact jaw of each conducting terminal can't be to the second die wall direction off normal.Now, make the interior fill insulant of die cavity of mould, treat that the solid firmly back of insulating material forms insulating base, and each conducting terminal combines with insulating base in the mode of imbedding promptly, and the contact jaw of each conducting terminal part of being close to first die wall then can not be insulated the material coating and appeared.At last, excise other unwanted parts except that the abutting end of conducting terminal on the metal material belt and become electric connector goods.

Utilize the principal character of the electric connector goods of above-mentioned manufacture method made to be that then the Plug Division of insulating base is formed with a contact-making surface and the back side in contrast to contact-making surface that appears for the contact jaw of conducting terminal, make the Plug Division of insulating base will form a through hole that is communicated with the contact jaw of relative conducting terminal from the back side relatively because of the thimble that breaks away from mould.

Description of drawings

Other features and advantages of the present invention in the following detailed description that cooperates with reference to graphic preferred embodiment, can clearly be understood, in graphic:

Fig. 1 is a kind of organigram of electric connector goods of horizontal.

Fig. 2 is the organigram of the electric connector goods of another kind of vertical type.

Fig. 3 is a kind of Fig. 1 of producing or the applied conducting terminal schematic diagram of this electric connector shown in Figure 2, is to form on the metal material belt with punching press side so that these conducting terminals to be described.

Fig. 4 uses conducting terminal shown in Figure 3 to produce one of Fig. 1 or this electric connector shown in Figure 2 mould schematic diagram with internal mold method.

Fig. 5 is the applied mold structure schematic diagram of a preferred embodiment of electric connector making method of the present invention.

Fig. 6 is the organigram of applied another angle of mould of this preferred embodiment of Fig. 5.

Fig. 7 is the horizontal electric connector products appearance schematic diagram that manufacture method produced of using this preferred embodiment.

Fig. 8 is another angle schematic appearance of horizontal electric connector goods shown in Figure 7.

Fig. 9 is the vertical type electric connector products appearance schematic diagram that manufacture method produced of using this preferred embodiment.

Figure 10 is another angle schematic appearance of vertical type electric connector goods shown in Figure 9.

Preferred embodiment describes in detail

One preferred embodiment of electric connector making method of the present invention is the structure in order to the electric connector 1 of making horizontal as the aforementioned or vertical type, the mode of its manufacturing is mainly still based on internal mold method, in the middle of the following description, structure is as hereinbefore represented with identical label, and this manufacture method includes following step:

At first as Fig. 3, on a thin metal material belt 110, plural number is propped up conducting terminal 11 drawings with impact style, make these conducting terminals 11 respectively have a contact jaw 111 and an abutting end 112, and the abutting end 112 of each conducting terminal 11 is still linked to each other with metal material belt 110.

Refer again to Fig. 5, prepare a mould 2, make mould 2 include one of can be involutory mutually first mould 21 and one second mould 22, and first mould 21 is formed with one first die wall 211,22 of second moulds are formed with one second die wall 221 relatively, first mould 21 with can make after second mould 22 combines win die wall 211 and second die wall 221 define one jointly to flow and in order to the die cavity 23 of shaping insulating base 10 shapes for insulating material, and make that the contact jaw 111 of the conducting terminal 11 of formed thereby is placed in specific location in the die cavity 23 on the metal material belt 110, the abutting end 112 of conducting terminal 11 then can be positioned at outside the die cavity 23, contact jaw 111 positions corresponding to each conducting terminal 11 further are provided with a plural number thimble 222 to first die wall, 211 direction projectioies on second die wall 221 again, make contact jaw 111 that these thimbles 222 replace each conducting terminal 11 respectively being close to first die wall 211, and then make the contact jaw 111 of each conducting terminal 11 be directed downwards off normal to second die wall 221.

In addition as shown in Figure 6, for the contact jaw 111 that further prevents conducting terminal 11 direction off normal towards adjacent conductive terminal 11, on first die wall 211 of first mould 21, can be provided with a plurality of blocks 212 to second die wall, 221 direction projectioies, make each block 212 can lay respectively at the centre of the contact jaw 111 of adjacent two conducting terminals 11, combine the contact jaw 111 adjacent conductive terminal 11 direction off normals to the left and right that can make each conducting terminal 11 when forming insulating base 10 with second mould 22 at first mould 21, by this, make the contact jaw 111 of each conducting terminal 11 obtain better polarization.

Now, mode with ejection formation, make the die cavity 23 interior fill insulants of mould 2, treat that the hard solid back of insulating material cooling forms insulating base 10, and each conducting terminal 11 promptly combines with insulating base 10 in the mode of imbedding, and the contact jaw 111 of each conducting terminal 11 is because of being close to first die wall, 211 irremovable causes, and the part that makes contact jaw 111 fit in first die wall 211 can be guaranteed not coat on the Plug Division 101 that is emerging in insulating base 10 for insulating material.

At last, open mould 2, and other unwanted parts except the abutting end 112 of conducting terminal 11 on the metal material belt 110 are excised and become the goods of an electric connector 1.

As shown in Figures 7 and 8, it is the electric connector 1 of the horizontal produced by manufacture method of the present invention, the Plug Division 101 that is primarily characterized in that insulating base 10 is formed with a contact-making surface 1011 and the back side 1012 in contrast to contact-making surface 1011 that appears for the contact jaw 111 of conducting terminal 11, opening mould 2 and making after electric connector 1 withdraws from mould 2, as the 7th figure, the thimble 222 of the back side 1012 of the Plug Division 101 of insulating base 10 because of breaking away from second mould 22, can form relatively in thimble 222 original positions one from the back side 1012 through holes 1013 that are communicated with the contact jaw 111 of relative conducting terminal 11.Similarly as shown in Figure 8, the contact-making surface 1011 of the Plug Division 101 of insulating base 10 is the block 212 because of breaking away from first mould 21 also, and is in the contact site 111 middle grooves 1014 that form of adjacent conductive terminal 11 on the contact-making surface 1011 in block 212 original positions.For another Fig. 9 and shown in Figure 10, then be the electric connector 1 of the vertical type produced by manufacture method of the present invention, it is formed with plurality of grooves 1014 and through hole 1013 respectively equally on the contact-making surface 1011 of Plug Division 101 and the back side 1012.

In sum, the present invention utilizes and designs the structure that thimble 222 and block 212 are arranged in the mould 2, can not influence fully under the existing specification limits of electric connector 1, make and to utilize in the middle of electric connector 1 manufacturing process that the internal mold method mode makes, therefore the polarization of conducting terminal 11 can significantly improve, the fraction defective of product then can reduce relatively, reaches the procedure for producing that has more benefit.

Yet, the above person only is preferred embodiment of the present invention, when not limiting scope of the invention process with this, promptly the simple equivalent of being done according to claim 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.

The element numbers contrast

1 electric connector

10 insulating bases

100 bodies

101 Plug Divisions

1011 contact-making surfaces

1012 back sides

1013 through holes

1014 grooves

102 composition surfaces

11 conducting terminals

110 metal material belts

111 contact jaws

112 abutting ends

2 moulds

21 first moulds

211 first die walls

212 blocks

22 second moulds

221 second die walls

222 thimbles

23 die cavitys

Claims

1. electric connector making method, it is characterized in that, be to be applied to plural number is propped up mode and the insulating base one ejection formation of conducting terminal with the internal mold method inlet part, and make respectively that this conducting terminal remains on specific location and non-off normal in this insulating base forming process, this manufacture method may further comprise the steps:

First step: on a thin metal material belt, plural number is propped up the conducting terminal drawing, make this conducting terminal respectively have a contact jaw and an abutting end, and the abutting end of each conducting terminal is still linked to each other with this metal material belt with impact style;

Second step: prepare a mould, make this mould include can be involutory mutually one first mould and one second mould, and this first mould is formed with one first die wall, this second mould then is formed with one second die wall relatively, this first mould with make after this second mould combines this first die wall and this second die wall define one jointly to flow and in order to the die cavity of this insulating base shape that is shaped for insulating material, and make that the contact jaw of the conducting terminal of formed thereby is placed in specific location in this die cavity on this metal material belt, the abutting end of this conducting terminal then is positioned at outside this die cavity, further be provided with plural number a thimble corresponding to the contact jaw position of this conducting terminal respectively on this second die wall again to this first die wall direction projection, make contact jaw that this thimble replaces each conducting terminal respectively being close to this first die wall, and then make that respectively the contact jaw of this conducting terminal can't be to this second die wall direction off normal;

Third step: the interior fill insulant of die cavity that makes this mould, treat that the solid firmly back of insulating material forms this insulating base, and respectively this conducting terminal promptly combines with this insulating base in the mode of imbedding, and respectively the contact jaw of this conducting terminal part of being close to this first die wall then can not appeared for insulating material coats; And

The 4th step: excise the unwanted part of other except that the abutting end of this conducting terminal on this metal material belt and become electric connector goods.

2. electric connector making method as claimed in claim 1, it is characterized in that, in this second step, further be provided with a plurality of blocks on first die wall of first mould to this second die wall direction projection, make that respectively this block lays respectively between the contact jaw of this adjacent conductive terminal, this first mould combine with this second mould can avoid this conducting terminal respectively when forming this insulating base contact jaw to this adjacent conductive terminal direction off normal.