CN1096126C - Electrical connector with integral supporting structure - Google Patents

Abstract

The invention discloses an electrical connector (10) having a one piece housing (12), a plurality of cavities (18,20,22,24) in the housing, arranged in two vertical stacks (14,16) of four cavities each, and a contact (26,28,30,32) in each cavity. The cavities in each stack are separated by thin walls (48,50,52) of the housing. Each of the contacts has a contact end (68) for mating with a mating connector, and a tail (78) that exits from the contact at a right angle to the mounting surface (36) of the connector. Some of the contacts (28,30,32) have support members (94,96,98,100,102,104) that extend from the contact to engage the floor (53) of the cavity while the upper surface of the contact is in engagement with the ceiling (51) of the cavity. There is a bearing structure established from the tails (78) through the support members and the thin walls (48,50,52) to the top surface (34) of the connector housing. This permits installation of the connector (10) to a circuit board (12) by applying an insertion force directly to the top surface of the housing.

Description

Electric connector with integral supporting structure

The present invention relates to a kind of electric connector, this electric connector is mounted on the circuit board, and its joint lead-in wire (lead) is with the right angle leading-out connector and extend through hole on the circuit board.The present invention especially relates to such connector, and it is assembled on the circuit board in the following manner: will go between and aim at the hole, the top to connector shell applies enough power thereafter, thereby press-fit lead is inserted in the hole fully.

Have with circuit board on the connector of joint lead-in wire of electroplating ventilating hole interference fit to be mounted on the circuit board in the right angle mode and need by means of special tool(s) usually.This connector is such location: the shoulder of instrument and joint or the applying of other butting surface are aimed in its joint its corresponding hole that goes between.Then instrument is shifted to the surface of circuit board, impelled the joint lead-in wire to enter in the hole, be positioned on the circuit board fully up to connector.The United States Patent (USP) 4550962 that on November 5th, 1985 was authorized Czeschka discloses this connector and instrument fit.' 962 patent disclosure a kind of connector with two parts sandwich type element and a plurality of joint lead-in wire, joint is drawn in the rear portion of the first of connector shell, and with the right angle towards the circuit board bending.Each joint lead-in wire has the end pin of the respective aperture interference fit on two butt joint auricles that extend from the opposite sides of joint lead-in wire and and the circuit board.The plug-in mounting instrument has the butting surface that cooperates with the butt joint auricle of each joint lead-in wire, and the application of force makes its end pin insert corresponding hole.The second portion of housing is mounted on the connector subsequently, with the lead-in wire of capping exposure.The shortcoming of this connector is the casing with separation, and this casing must be by user assembled, and needs special instrument realize plug-in mounting.The United States Patent (USP) 5252080 of authorizing Pesson on October 12nd, 1993 discloses the another kind of connector that has two parts sandwich type element but do not need special tool(s) to assemble.' 080 patent instruction: first connector shell has the joint lead-in wire from its extension, and these lead-in wire right-angle bendings also end at end pin, the hole interference fit on its corresponding circuit board of end pin.Have a plurality of grooves in second connector shell, groove is very consistent with the profile of lead-in wire, and second connector shell is mounted to first housing, and lead-in wire is placed in its respective groove.The end pin of connector is by means of in the hole on the instrument insertion circuit board of a plane surface, and instrument cooperates with the top surface of second housing, and it is pressed to circuit board.The groove supporting wire of second housing, end pin are pressed in its corresponding hole.This connector has adopted two parts sandwich type element, and this housing must assemble after joint inserts in the chamber in the part, and this has just increased makes the cost that covers connector.Another kind of relevant connector has adopted two parts sandwich type element, and it is disclosed in authorized in the United States Patent (USP) 5199886 of Patterson on April 6th, 1993.The matrix of adapter connector is vertically disposed with respect to the direction of insertion of joint lead-in wire, that is, joint is vertically arranged housing from the width at edge to another edge.Because joint is its edge to be installed be provided with in housing, the total height of housing is directly related with the edge-border width of joint.When relating to the joint of necessary carrying electric power, this edge-border width significantly increases, so the highly significant of connector increases.

European patent application 0549662A1 discloses a kind of electric connector, and it has a plurality of chambers that are vertically installed in groups in the insulation shell, and each chamber has upper wall and lower wall; Also have a plurality of joints, each joint is arranged in a chamber.Joint comprises a matrix, and matrix has the support component that extends and cooperate with the lower wall of chamber from it.Each joint has a circuit board installation blank area that meets at right angles and extend with matrix.The major axis of three nethermost blank areas extends by the upper wall of lower wall, support component and position each chamber thereon.The joint of connector is the tubular section.

Therefore needed is a kind of like this connector, and it has integral housing, and its center tap is provided with its matrix horizontal location, thereby makes connector height minimum, and this connector does not need special tool(s) just can easily be assembled on the circuit board.

The invention discloses a kind of electric connector, it is used to be mounted to the installation surface of circuit board and interconnects with circuit on the circuit board.This connector is provided with an insulation shell, and this housing has a top surface and a basal surface, and basal surface has defined roughly parallel with a top surface surface.Basal surface is suitable for being mounted on the installation surface of circuit board.Housing has the chambers of a plurality of separation that form therein, these chambers vertically stacked and separate between top surface and basal surface by thin-walled, so each chamber has a upper wall and a lower wall.A plurality of joints are arranged at a mode in the corresponding chambers according to each and arrange, each joint has a matrix, a blank area and a lead-in wire that extends from an end of matrix, the extension that meets at right angles from the opposite end of matrix and (basal surface defines) plane of this lead-in wire, and link to each other with matrix at a turn of bilge place.The upper wall with the close its corresponding chamber of a part of turn of bilge of matrix cooperates.Wherein each in the part joint has a support component, and support component extends to the lower wall of its corresponding chambers from joint matrix and cooperates, so that a vertical support structure to be provided between upper wall and lower wall.Support component is so to be provided with, promptly, the longitudinal axis of each lead-in wire extends through the upper wall of each chamber of a lower wall, support component and vertical direction top, determines a vertical support structure thus between top surface and each lead-in wire, cooperates so that lead-in wire is inserted into circuit board.

One embodiment of the present of invention are described below with reference to accompanying drawings, in the accompanying drawing:

Fig. 1,2,3 and 4 is respectively end view, rearview, front view and the bottom view that embodies the connector of technology of the present invention;

Fig. 5 is the cutaway view along the intercepting of the line 5-5 among Fig. 2;

Fig. 6 is the cutaway view along the intercepting of the line 6-6 among Fig. 1;

Fig. 7,8,9 and 10 is respectively end view, front view, rearview and the top view of the connector shell shown in Fig. 1;

Figure 11 is the cutaway view along the intercepting of the line 1-1 among Fig. 8;

Figure 12 is the enlarged diagram of the part represented by A among Fig. 9;

Figure 13 and 14 is respectively the end view and the plane graph of the joint shown in Fig. 5;

Figure 15 is the end view of the connector shell among Fig. 1, and it illustrates inserts the preceding joint of housing;

The connector that Figure 16 and 17 illustrates Fig. 1 is in the different phase that is assembled to circuit board.

Fig. 1-6 illustrates an electric connector 10, and it has monomer insulation shell 12.Housing 12 comprises a plurality of chambers that are used to hold joint.These chambers are arranged in a side-by two vertical chamber groups (stack) 14 and 16, and every group has joint accommodating chamber 18,20,22 and 24.Each chamber 18,20,22 and 24 comprises a Power tabs socket (receptacle powercontact) 26,28,30 and 32 separately, knows as Fig. 5 to illustrate.

Shown in Fig. 7-11, connector shell 12 comprises generally flat top surface 34 and generally flat basal surface 36.Basal surface 36 has defined a plane 37, and will be mounted on the smooth installation surface of circuit board, as following will illustrate.Each joint accommodating chamber 18-24 is a rectangular cross section, and the open rear section 40 that begins to stretch to housing 12 from antetheca 38, so these chambers are parallel to each other and are parallel to basal surface 36 and plane 37.Two groups of chambers 14 and 16 are arranged side by side, and are approximately perpendicular to plane 37, as being clear that in Fig. 8 and 9.Housing comprises two lateral walls 42 and 44 and midfeathers 46, midfeather 46 will separate to two groups of chambers 14 and 16 that openend 40 extends from antetheca 38, chamber 18-24 is separated by thin wall 48,50 and 52, as what be clear that among Figure 11, in each chamber, form upper wall 51 and lower wall 53 thus respectively, shown in Fig. 9 and 12.Each chamber 18-24 has the rectangular aperture 54 through antetheca 38, and this opening is positioned at the center of chamber, is used to admit the shaft-like joint of the connector that matches.Pair of guide rails 56 is extended under basal surface and close antetheca 38, to be led to the connector that matches.Two location shanks 58 that separate and 60 extend from basal surface 36, and its size is suitable for sliding and inserts in the location hole on the circuit board.These shanks are accurately located connector shell with respect to circuit board, thereby prevent to be displaced sideways.Center shank 62 extends downwards from basal surface 36, and between shank 58 and 60, it is by groove 64 bifurcateds, so this shank has certain elasticity.Hole interference fit on shank 62 and the circuit board is used for connector 10 is locked to circuit board.

Joint 26,28,30 is similar with 32 structure, therefore only is joint 30 shown in Figure 13 and 14 and be described, and but, has also described any difference between the joint.Joint 30 is punching presses, and is made by ribbon thin slice base material, and it comprises the support bar 66 of a routine, and has a receptacle contact part 68, is used for cooperating with unshowned shaft-like joint.Joint 30 can be by any suitable joint material manufacturing, and it comprises a matrix 70, and matrix 70 is more flat, and extends to transition member 72 from blank area 68.Edge-the border width of matrix 70 is chosen as the function of the required electric power bearer cap of joint.In the present embodiment, joint 26-32 has a matrix 70 separately, and its wide and about 0.030cm of about 0.493cm (0.194 inch) (0.012 inch) is thick, and about 5 amperes current load capacity is provided thus.Transition member 72 has been shown in Figure 13 and 14, and wherein solid line is its crooked preceding even shape, the shape after dotted line 74 its bendings of expression.After the bending, transition member 72 links to each other with matrix 70 at turn of bilge 76 places, and forms the right angle with respect to matrix.Three end pins 78 extend from transition member 72, its shape be suitable for unshowned circuit board on the electroplating ventilating hole interference fit.In transition member 72, be formed with three reinforcements 80, end pin inserted the required insertion force of respective aperture on the circuit board to provide enough intensity to bear.The length of transition member 72 will change between joint 26,28,30 and 32, and be the function of their corresponding chamber 18-24.As clear illustrating among Fig. 5, joint 26 and 28 has the transition member 82 and 84 than transition member 72 weak points respectively, and joint 32 has long transition member 86.Transition member 72,82,84 and 86 ends terminate in the position that does not just reach plane 37, and their end pin 78 extends through this plane.A pair of hangnail 88 is from each side horizontal expansion of matrix 70, so that joint is fixed in the housing 12.

Shown in Figure 13 and 14, joint 30 comprises a pair of relative support component 94 and 96, and they extend from the opposite edges of matrix 70.As what be clearly shown that among Fig. 6, support component 94 and 96 is bent downwardly and forms C shape section with matrix 70.The support component 94 and 96 the degree of depth are about 0.152cm (0.060 inch) in the present embodiment, the selection of the degree of depth should make the lower limb of support component against lower wall 53, and the upper surface of matrix 70 is against upper wall 51, that is, matrix 70 and support component 94 and 96 closely are plugged in the chamber 22. Support component 94 and 96 lower limb are made the angle, garden, in order to avoid damage lower wall 53.In addition, lower limb also can form box-like structure by turnup, and but, it may more be difficult to keep tolerance in manufacture process like this, and this structure is big not as C shape structural strength.It should be noted that the corresponding upper wall 51 of chamber and the distance between the lower wall 53 are about 0.157cm (0.062 inch), it is greater than the thickness of the matrix 70 of joint.Be clearly shown that among Fig. 5 that joint 26,28,30 and 32 end pin 78 are separated from each other, with the interval between each round in the adaptive circuit plate.Joint 28 has a pair of support component 98 and 100, and their length is less than the length of support component 94 and 96, and joint 32 has a pair of support component 102 and 104, and they have bigger length.The selection of these length should meet the following conditions: support component 98 and 100 is positioned at the top of center line 106 of the end pin 78 of turn of bilge 76 and joint 26 in vertical direction; Support component 94 and 96 is positioned at the top of center line 108 of the end pin 78 of support component 98 and 100, turn of bilge 76 and joint 28 in vertical direction; Support component 102 and 104 is positioned at the top of center line 110 of the end pin 78 of support component 94 and 96, turn of bilge 76 and joint 30 in vertical direction.The support component of each joint extends to the right since a vertical line, and this vertical line is positioned at the left side of tangent line of the turn of bilge 76 of joint 26, shown in Fig. 5 and 15, and surpasses the center line 106,108 and 110 that is positioned at the joint under it on the vertical direction.In such a way, 12 the top surface 36 from end pin 78 to housing is for each end pin 78 of each joint has been set up vertical supporting construction.For example, supporting construction is from end pin 78 and its turn of bilge 76 of joint 26, (to a certain degree) is along center line 106, by thin-walled 48, support component 98 and 100, thin-walled 50, support component 94 and 96, thin-walled 52, support component 102 and 104, the upper wall 51 by uppermost chamber 24 arrives top surface 34 at last.Similarly, other vertical support structure extends to top surface 34 from the end pin 78 of joint 28,30 and 32.The insertion force that these vertical support structure will vertically be applied to the top surface 34 of housing 12 effectively is transferred to each end pin of joint 26-32.

As shown in figure 15, joint 26-32 is arranged to a row, aims at their corresponding chamber 18-24, and is inserted into position shown in Figure 5 in their corresponding chamber.The size of chamber is selected like this, that is, blank area 68 will freely slide through chamber and arrive its final position, and this moment, hangnail 88 snapped in the narrowed portion of chamber, thereby had guaranteed joint location.Shown in Figure 16 and 17, connector 10 is assembled on the circuit board 112 by location like this, that is, end pin 78 is aimed at the electroplating ventilating hole 114 on the circuit board in vertical direction, the circuit interconnection on these through holes and the circuit board.Plug-in mounting instrument 116 with a plane surface 118 be placed on connector 10 directly over, and drop to the top surface 34 that plane surface 118 is fitted and connected device.Instrument 116 further descends, and top surface 34 is applied enough power, and this power passes to end pin 78 by above-mentioned supporting construction, inserts its corresponding hole 114 fully up to end pin 78.Simultaneously, as mentioned above, shank 58,60 and 62 cooperates the respective aperture in the circuit boards, and with the middle shank 62 of its respective aperture compression fit connector is fixed to circuit board.

Although the joint 26-32 of connector 10 is Power tabs in this embodiment, adopt only to have Signal connector or to have electric power and the connector of the combining structure of Signal connector also can be realized instruction of the present invention well.In addition, have two groups of joint accommodating chamber 14 that are arranged side by side and 16 connector although disclose, instruction of the present invention also can be advantageously applied to the connector of this chamber group with any amount.

An important advantage of the present invention is to have adopted integral housing, thereby has reduced number of components and system Make the cost of connector. In addition, connector so is assembled on the circuit board, that is, and and joint end pin and its Corresponding electroplating ventilating hole interference fit, this puts down surface-supported simple tool realization by means of having, Do not need special instrument. The another one advantage is that the horizontal orientation of joint matrix is so that can form The small size connector that holds Power tabs.

Claims (5)

1. an electric connector (10), be used to be mounted to the installation surface of circuit board (112), and be electrically connected mutually with the circuit on the circuit board, this connector (10) comprising: (a) insulation shell (12), it has a top surface (34) and a basal surface (36), basal surface has defined a plane (37) that is roughly parallel to top surface, housing (12) has a plurality of vertically stacked chambers (18 that form within it, 20,22,24), these chambers are between top surface and basal surface, and separated by wall, so each chamber has a upper wall and a lower wall; (b) a plurality of joints (26,28,30,32), be separately positioned in its corresponding chamber, each joint has a matrix (70), a blank area (68) and a transition member (72) of extending from the end of matrix, the extension that meets at right angles from the opposite end of matrix and plane (37) of this transition member, and link to each other with matrix (70) at a turn of bilge place, the upper wall with the close its corresponding chamber of a part of turn of bilge of matrix cooperates, the part joint also has a support component, support component extends to the lower wall of its corresponding chambers from joint matrix and cooperates, so that a vertical support structure to be provided between upper wall and lower wall, support component is so to be provided with, promptly, the longitudinal axis of each nethermost transition member (72) extends through a corresponding lower wall, the upper wall of each chamber of support component and vertical direction top, thus the top surface of housing (12) and below each transition member (72) between determine a vertical support structure, cooperate transition member is inserted into circuit board (112), this connector (10) is characterised in that:

Each joint roughly is flat, and is parallel to the plane (37) of the basal surface (36) of housing (12);

Support component comprises two parts (94,96), and these two parts are extended the cooperation of the lower wall that reaches its corresponding chamber from the opposite side of matrix (70).

2. according to the connector (10) of claim 1, wherein the support component of each joint is arranged on the transition member top of all joints that are arranged in the chamber under it in vertical direction.

3. according to the connector (10) of claim 1, wherein each transition member (72) comprises a rear portion, this rear portion is extended and is ended at least one welding end pin (78) from described turn of bilge, described welding end pin be suitable for stretching on the described circuit board (112) a hole (114) and with its interference fit.

4. according to the connector (10) of claim 3, wherein each rear portion of part joint is included in the reinforcement (80) that wherein forms, and this reinforcement vertically is provided with respect to described plane.

5. according to the connector (10) of claim 4, wherein the hole (114) on the circuit board (112) have with circuit board on the conductive surface of circuit interconnection, welding end pin (78) is suitable for electrically contacting with conductive surface in being in the hole time.

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