CN1194478A

CN1194478A - Connector

Info

Publication number: CN1194478A
Application number: CN98105788A
Authority: CN
Inventors: 藤原吉人
Original assignee: Whitaker LLC
Current assignee: Whitaker LLC
Priority date: 1997-03-26
Filing date: 1998-03-25
Publication date: 1998-09-30

Abstract

To provide an electric connector in which a fitting portion and a contact are kept in predetermined position relationship . An electric connector 1 is equipped with a housing 2, the fitting portion 6' of another body, and a board assembly 50. A contact 30' is fixed to the predetermined position of the housing 2 via the board assembly 50. When the contact 30' is fitted, the fitting portion 6' is horizontally moved in a gap W1 between the housing 2 and the same so as to absorb the dislocation of the contact. Thereby, the contact 30' is arranged at a predetermined position in the fitting position 6' so as to be smoothly fitted to a counter connector.

Description

Connector

The present invention relates to a kind of electric connector, especially, relate to a kind of mating part and separate the electric connector that forms with housing.

The crowd knows is a kind of electric connector that the printed circuit board (PCB) that has the element that is used to control computer is arranged.For example, electric connector (after this being called connector) 200 is disclosed in JP-A-7-312267, and as shown in Figure 6, connector 200 is included in the housing 202 and 204 that the different time is integrally molded, and the contact of giving prominence in mating part 206 208.Connector 200 comprises that plate patches part 210, is used to patch the plate (not shown) with the electronic component that will be connected on the contact 208.

In the described in front prior art, only provide a mating part 206.But, to provide many mating parts sometimes, for example, two.Printed circuit board (PCB) extends on two mating parts, to be electrically connected with contact in the mating part 206.But because the coefficient of expansion difference between housing and the plate, if distance is long between the mating part 206, variations in temperature will produce that solder joint partly ruptures between contact 208 and the plate, and this will destroy the reliability of electrical connection.Further, if contact 208 is made expansion and the contraction that can move with matching disc, contact will change its position in compatible portion 206, therefore, make the fore-end 208a distortion of contact 208.Under a kind of opposite extreme situations, possible compounding practice itself can not be successful.

The mould that is used for molded shell must adapt to the diameter of each contact 208, cross sectional shape etc.Therefore, any modification of contact all needs the modification of housing and mould.

The present invention has considered aforesaid factor.Purpose of the present invention just provides a kind of electric connector, and it can eliminate the coupling part of contact and the fracture of the solder joint on the printed circuit.

Another purpose provides a kind of electric connector, and wherein, contact always accurately is arranged in mating part, can under any circumstance be connected on the matching connector.

The electric connector that is characterized as according to electric connector of the present invention includes housing of mating part and is included in the housing and at the outstanding contact of mating part, it is characterized in that described mating part and housing separate formation, and be installed to movably on the housing, make mating part with predetermined relationship location with respect to contact.

With reference now to accompanying drawing, describes the preferred embodiment of electric connector (after this being called connector) in detail.

Fig. 1 is the plane graph according to electric connector of the present invention;

Fig. 2 is the cutaway view of II-II along the line among Fig. 1;

Fig. 3 is the cutaway view of III-III along the line among Fig. 1, does not comprise assembly;

Fig. 4 is the plane graph of substrate;

Fig. 5 is the bottom view according to electric connector of the present invention, does not comprise plate;

Fig. 6 is the cutaway view that prior art is shown.

Fig. 1 is the plan view according to connector 1 of the present invention.The insulation shell 2 that is roughly rectangle comprises the

flange

4,4 at two ends ' being installed to other element, and the mating part 6,6 adjacent with flange 4,4 ' difference '.Flange 4,4 ' have by inserted mode system therein fixing and be useful on the hole 8,8 that patches the construction bolt (not shown) '

metal lining

10,10 '.Housing 2 has the opening 12 that is roughly rectangle at mid portion, is used for arranging falling warmware (heat liberation board) 20 (see figure 2)s, and will there be description the back.

Mating part 6,6 ' comprise from the upper surface 14 of housing 2 projecting upwards, just the

cover

16,16 of recto ', mating part 6,6 ' separate formation with housing 2.A flange 18 that is roughly rectangle of mating part 6 ' have.

Mating part 6 has one group along the muscle 16a that extends perpendicular to the direction of paper at cover 16 places, 16b, and 16c, 16d, 16e, 16f is used for matching with complementary plug connector (not shown), so that polarity and guiding to be provided when the compounding practice.With respect to mating part 6 ' the outer surface 18 of cover 16 be formed with the bonding part 22 of framework shape.There is a ledge 22a this bonding part 22, with the pin connector hasp.There is a fit 24 inside at cover 16, and the contact 30 of many needle-likes is arranged with two and placed in it.

To describe below mating part 6 '.But, because mating part 6 ' modular construction similar to the modular construction of mating part 6, therefore, for similar in appearance to the mating part 6 of mating part 6 ' the structure of parts, on same number, add ['] and do not do detailed description.Mating part 6 ' fit 24 ' in, be provided with contact 30 similar in appearance to contact 30 '.These contacts can be identical with contact 30 also can be different with contact 30.

Fig. 2 is the cutaway view of the II-II along the line of Fig. 1.Through hole 26a is arranged, fit 24,24 in the housing 2 of the diapire 26,26 of 26a ' ' be formed on ' locate.Plate patches perforate (being called perforate later on) 29 and is formed on the bottom of housing 2, is used to patch printed circuit board (PCB) 40.Perforate 29 is connected with perforate 12, as shown in Figure 2, and has a groove 28 to stretch to the diapire 26 in housing 2 left sides.Simultaneously,, form to cooperate to patch perforate (after this being called perforate) 32 quilts at opposite side, be used to patch another mating part 6 '.Similar in appearance to the groove 28 of groove 28 ' be formed on mating part 6 ' the bottom.Inner housing 34,34 ' with respect to groove 28,28 ' the be installed in both sides of plate 40.Inner housing 34,34 ' be integrally molded in (see figure 3) in the substrate 52 will be done description later on.

Contact 30,30 ' be fitted in inner housing 34,34 ' in, and contact 30,30 ' tooth 30a, 30a ' (welding portion) locates to be welded to plate 40.Each contact 30,30 ' be inserted into tabular potted component 44,44 of rubber-like ', to constitute the assembly (after this being called assembly) 50 of plate.Cannelure 36,36 ' along groove 28,28 ' be formed on mating part 6,6 ' the bottom.Further, groove 38,38 ' close on groove 36,36 ' formation.These grooves 38,38 ' be used for fixing and fall warmware 20, and be coated with thereon with binding agent, to accept to wait to be adhered to this muscle 20a that falls warmware 20.Falling warmware 20 is exposed in the hole 12.Inner housing 34,34 ' have corresponding to groove 36,36 ' the

outstanding muscle

42,42 of ring-type '.Board component 50 by inner housing 34,34 ' outstanding muscle 42,42 ' and groove 36,36 ' cooperation be installed in mating part 6,6 ' on.Groove 36,36 ' before compounding practice is coated with binding agent and bonds on the housing 2 with handle component 50.In the compounding practice process, contact 30,30 ' be inserted into the through hole 26a of its diameter greater than contact 30,30 ' diameter, among the 26a ', potted component 44,44 ' tightly be pressed in diapire 26,26 ' and inner housing 34,34 ' upper surface 34a, between the 34a '.

Electric or electronic component (not shown) is installed on the lower surface 40a of plate 40.Perforate 29 is filled out with the gel (not shown), evenly to distribute the heat that element produces, with protection component and circuit.Also can prevent the oxidation of the welding portion of plate 40.Fill out after the gel, the bottom of housing 2 is sealed with the cover (not shown).The groove 2a that is formed on the bottom of housing 2 is coated with binding agent so that cover is bonded among the groove 2a.Cover and potted component 44,44 ' can prevent that gel from flowing to the outside.

The lower surface 20b that falls warmware 20 contacts with the upper surface 40a of plate 40 substantially, to distribute effectively by heat electric, that electronic component produces.Inner housing 34,34 ' be formed with slave plate 40 along contact 30,30 ' gap 34b, 34b '.Contact 30,30 ' can be at gap 34b, the middle bending of 34b ', thereby, can make contact 30,30 ' the follow expansion and the contraction of the plate 40 that produces by variation of temperature.This helps to prevent that welding portion from rupturing.

Mating part 6 ' the bottom of flange 18 be inserted in the perforate 32 of housing 2.Aforementioned recess 28 ' be formed on mating part 6 ' the bottom.The complementation that flange 18 is fitted tightly to the upper surface that is formed on housing 2 patches in the part 46.Patch part 46 and have a groove 46a, be used to accept, with the structure hermetically-sealed construction such as the such potted component 48 of O type ring along the profile of flange 18.Gap W1 is formed on the outer surface 18a of flange 18 and patches between the inwall 46a of part 46, allowing mating part 6 ' in the W1 of gap, move, be absorbed in inner housing 34 ' and groove 28 ' the compounding practice process in the variation of position.

Fig. 3 is the cutaway view of III-III along the line among Fig. 1.It only shows housing 2, mating part 6 ' and potted component 48.Flange 18 has the hasp arm 62 of downward extension at lower surface 18b place.Hook portion 62a is formed on the front end of the hasp arm 62 that matches with prone shoulder portion 64 in the opening 32, so that mating part 6 ' is installed on the housing 2.Under this condition, gap W2 is formed on the outer surface 18a of flange 18 and patches between the inwall 46a of part 46, move to allow mating part 6 ' in the W2 of gap by crooked hasp arm 62, with absorb inner housing 34 ' the size displacement.Gap W1, the size of W2 can be identical, also can be different.

That is to say because inner housing 34,34 ' between distance be constant, when mating part 6,6 ' cooperations, the size difference that the housing 2 after molded shrinks generations will be absorbed, with install tightly mating part 6,6 '.

Fig. 4 be formed with inner housing 34,34 ' the plan view of substrate 52.After this substrate is being described.Inner housing 34,34 ' be formed on relative relation in the substrate 52 of member shape.

Contact jointing holes

34c, 34c ' with two rows be formed on inner housing 34,34 ' upper surface 34a, among the 34a '.Inner housing 34,34 ' at

end arm

34d, 34e, 34d ', 34e ' locate to have

muscle

56,56 ', 58,58 ', being respectively applied for provides polarity.Clearly illustrate, protrusion 42,42 ' along inner housing 34,34 ' periphery form, bonding to be used for.Substrate 52 has a perforate 62 in the middle, to accept to fall warmware 20.

Fig. 5 is the bottom view that does not comprise the connector 1 of plate shown in Figure 1 40.It clearly show that substrate 52 places the perforate 29 of housing 2.Also can easily understand, ' along contact 30,30 ' row forms with elongated shape for the gap 34b of formation, 34b ' around contact 30,30.Although the size and dimension difference of contact, housing 2 can be used for reformed assembly 50 publicly, thereby, can make connector be used in various occasions.

Although the present invention is described in detail, clearly former for the technology people of this area, can do various changes and variation within the scope of the present invention.

Mating part according to electric connector of the present invention separates formation with housing, and with respect to contact with Predetermined relation is installed on the housing, with the size difference of absorption contact, thereby, following advantages is provided. When corresponding connector is inserted into mating part, it connect smoothly and not can mating part near Contact, and can not make the contact distortion.

Claims

1. electric connector, comprise a housing with mating part, reaching one is included in the housing, stretch out the contact of mating part, it is characterized in that, described mating part separates formation with housing, and is installed in movably on the housing, makes described mating part locate with predetermined relation with respect to contact.