CN202564619U

CN202564619U - Electrical connector

Info

Publication number: CN202564619U
Application number: CN2012201276922U
Authority: CN
Inventors: 章晓暖
Original assignee: Molex LLC
Current assignee: Molex LLC
Priority date: 2011-04-21
Filing date: 2012-03-29
Publication date: 2012-11-28
Anticipated expiration: 2022-03-29
Also published as: SG185156A1; TWM440555U

Abstract

An electrical connector includes an insulating body and a plurality of terminals. Each terminal includes a base portion that is retained within the insulative body. Each terminal includes a contact portion and a free end. When the terminal is not pressed down, the contact part is positioned above the insulating body. The free end is located on a resilient arm portion and within the insulative body. The resilient arm portion extends from the contact portion. The terminal has a bent section near the free end of the resilient arm portion, the bent section being slidable on the base portion when the terminal is depressed. The insulating body is provided with a stop block, each terminal is provided with a wing part, and the wing part can touch the stop block. The wings and the stop block prevent the terminal from being accidentally moved when not pressed down.

Description

Electric connector

Technical field

The utility model relates to a kind of electric connector.

Background technology

Electric connector 1 with structure shown in Figure 1 is used in electronic apparatus usually, and is used to connect a battery pack (battery pack).Electric connector 1 includes terminal 11, and terminal 11 is for 12 fixings of insulation shell and have contact site 111, and wherein contact site 111 protrudes out the end face of insulation shell 12, with the connection pad (pads) 131 of contact electronic installation 13.After electronic installation 13 connected electric connector 1, electronic installation 13 was near the end face of insulation shell 12, and contact site 111 flexibly is pressed into insulation shell 12.Contact site 111 includes the U-shaped shape with a flat bottom stage, so needs large space and accommodates contact site 111.Large space can make insulation shell 12 thickenings broaden.Yet the electric connector 1 with thick and wide insulation shell 12 can't satisfy the demand of compact electronic device.

When terminal 11 was pressed down, contact site 111 did not contact any position of electric connector 1.The terminal 11 of this kind design is comparatively soft, so apply less contact strength on the connection pad 131 of electronic installation 13, thus cause bigger contact impedance (contact resistance).

In some designs, the contact site of terminal need suitably separate with insulation shell.Under such design, when an electronic installation connected electric connector, contact site needed long distance to move before touching insulation shell.In some designs, when contact site is not pressed following time, the tip of contact site is to be exposed to outside the insulation shell.If electric connector does not properly use, this exposed tip may be touched with insulation shell, causes the damage of terminal.

Be the problem of avoiding exposed tip to cause, in some traditional electrical connectors, use vertical extension member, under the state under not being pressed at contact site, let the tip can be in insulation shell.Yet this type electric connector needs the heavy insulation housing, to accommodate contact site and the vertical extension member that is pressed, therefore is not suitable in the midget plant.

With reference to shown in Figure 1, terminal 11 has one recessed section 112.When contact site 111 is pressed following time, point 113 is positioned at recessed section 112.Can stop moving of point 113 for recessed section 112, so terminal 11 is not suitable for having and can grows the contact site 111 that distance moves.

The utility model content

Because the deficiency of aforementioned conventional electric connector, a kind of new electric connector is suggested.

The utility model technical problem to be solved is: the electric connector of prior art needs large space and accommodates contact site and cause that the electric connector thickening broadens, contact impedance is bigger; Perhaps by avoiding exposed tip to be caused damage to let the tip in insulation shell, cause electric connector to need the heavy insulation housing; And can't be applied within the midget plant, perhaps connector terminals contact site be not suitable for long distance and move.

According to the utility model one embodiment, a kind of electric connector includes an insulating body and a plurality of terminal.Insulating body has the shape of a general rectangular body.Insulating body includes a upper surface, a lower surface, a front surface, surface, a back, a plurality of terminal groove, and a plurality of stop block.Each terminal groove is to be defined by a notch and relative two cell walls.One group terminal groove is that the front surface by insulating body is arranged with on the surface backward, and forms the notch of the terminal groove of this group at front surface.The terminal groove of another group is to be arranged with by the past front surface in the back surface of insulating body, and forms the notch of the terminal groove of this another group on the surface, back.In two adjacent terminal grooves, the notch of a terminal groove is positioned at front surface, and the notch of other end pilot trench is positioned at the surface, back.The corresponding a plurality of cell walls of a plurality of stop blocks.Each stop block protrudes from a corresponding cell wall.Each terminal includes a base portion, a weld part, one first bend, one first elastic arm, a contact site, one second bend, one second elastic arm and both wing portions.Base portion forms and is fixed in corresponding terminal groove.Weld part extends from the notch of base portion near the terminal groove of the past correspondence of a lateral edges of the notch of corresponding terminal groove.First bend extends from the lateral edges of base portion away from the notch of the terminal groove of correspondence.First bend includes a protruding side, and the protruding side of first bend is towards the direction away from the notch of the terminal groove of correspondence.One end of first bend is towards notch.The notch of first elastic arm terminal groove towards correspondence from first bend extends on the upper side.Contact site is formed at first elastic arm's a end.Second bend extends from contact site.Second bend includes a protruding side, the protruding side of second bend towards an oblique upper to.One end of second bend is towards the notch first direction on the lower side away from the terminal groove of correspondence.Second elastic arm extends towards the notch second direction on the lower side away from the terminal groove of correspondence from second bend.Both wing portions is formed at second elastic arm's edge, two opposite sides respectively and near second elastic arm's a end.Second elastic arm includes a section, and section is terminal and crooked towards first elastic arm near second elastic arm's, to form a cambered surface towards base portion.The contact site is on the upper surface of insulating body.Weld part exposes outside the corresponding terminal groove.Each alar part is between the notch of the stop block of correspondence and corresponding terminal groove and below stop block, extend.The contact site of a plurality of terminals is lined up two rows, and wherein a row contact site is near the front surface of insulating body, and another row's contact site is near the back surface of insulating body.When the contact site of each terminal began to be pressed down, first elastic arm provided resiliency supported.When second elastic arm's cambered surface contacted corresponding base portion, second elastic arm provided extra support.Second elastic arm's cambered surface can slippage on base portion, and moves through the notch of base portion guiding away from the terminal groove of correspondence.

In other words, the utility model provides a kind of electric connector, includes:

One insulating body, having one is the shape of cuboid substantially, this insulating body includes:

One upper surface, a lower surface, a front surface and surface, a back;

A plurality of terminal grooves; Respectively this terminal groove is to be defined by a notch and relative two cell walls; Wherein one group said terminal groove is arranged with toward this surface, back by this front surface of this insulating body, and forms the said notch of the said terminal groove of this group at this front surface, and the said terminal groove of another group is arranged with by surperficial past this front surface in this back of this insulating body; And at this back surperficial said notch that forms the said terminal groove of this another group; Wherein in two adjacent said terminal grooves, this notch of a terminal groove is positioned at this front surface, and this notch of another this terminal groove is positioned at this surface, back; And

A plurality of stop blocks, the corresponding said cell wall of said stop block, wherein each stop block protrudes from a corresponding cell wall; And

A plurality of terminals; Respectively this terminal includes a base portion, a weld part, one first bend, one first elastic arm, a contact site, one second bend, one second elastic arm and both wing portions; Wherein this base portion forms and is fixed in this corresponding terminal groove; This weld part extends from this base portion this notch near this terminal groove of the past correspondence of a lateral edges of this notch of this corresponding terminal groove, and this first bend extends from the lateral edges of this base portion away from this notch of this terminal groove of correspondence, and this first bend includes a protruding side; The protruding side of this of this first bend is towards the direction away from this notch of this terminal groove of correspondence; One end of this first bend is towards this notch, and this notch of this first elastic arm this terminal groove towards correspondence from this first bend extends on the upper side, and this contact site is formed at this first elastic arm's a end; This second bend extends from this contact site; This second bend includes a protruding side, the protruding side of this of this second bend towards an oblique upper to a, end of this second bend towards this notch first direction on the lower side away from this terminal groove of correspondence; This second elastic arm extends towards this notch second direction on the lower side away from this terminal groove of correspondence from this second bend; This both wing portions is formed at this second elastic arm's edge, two opposite sides respectively and near this second elastic arm's a end, wherein this second elastic arm includes a section, and this section is near this end of this second elastic arm and crooked towards this first elastic arm; To form a cambered surface towards this base portion; Wherein this contact site is on this upper surface of this insulating body, and this weld part exposes outside this corresponding terminal groove, and respectively this alar part between this notch of this stop block of correspondence and corresponding this terminal groove and below this stop block, extend;

Wherein, the said contact site of said terminal is lined up two rows, and wherein said contact site of the row is near this front surface of this insulating body, and another row's said contact site is near this surface, back of this insulating body;

Wherein, When respectively this contact site of this terminal begins to be pressed down; This first elastic arm provides resiliency supported, and when this cambered surface of this second elastic arm contacted this corresponding base portion, this second elastic arm provided extra support; This cambered surface of this second elastic arm can slippage on this base portion again, and moves through this base portion guiding this notch away from this terminal groove of correspondence.

In above-mentioned electric connector, preferably, this insulating body includes this lower surface from this insulating body to one first reference column that extends below and one second reference column, and wherein this first reference column has different lateral dimensions with this second reference column.

In above-mentioned electric connector, preferably, this first bend includes a U-shaped shape.

In above-mentioned electric connector, preferably, this second bend includes a U-shaped shape.

In above-mentioned electric connector, preferably, this cell wall includes the one edge relative with this notch, and this stop block extends to a middle section position of this cell wall to this notch from this edge.

In another embodiment of the utility model, a kind of electric connector includes an insulating body and a plurality of terminal.Insulating body has the shape of a general rectangular body.Insulating body includes a upper surface, a lower surface, a front surface, surface, a back, a plurality of terminal groove, and a plurality of stop block.Each terminal groove is to be defined by a notch and relative two cell walls.One group terminal groove is arranged with on the surface by the front surface of insulating body backward, and forms the notch of the terminal groove of this group at front surface.The terminal groove of another group is arranged with toward front surface by the back surface of insulating body, and forms the notch of the terminal groove of this another group on the surface, back.In two adjacent terminal grooves, the notch of a terminal groove is positioned at front surface, and the notch of other end pilot trench is positioned at the surface, back.The corresponding a plurality of cell walls of a plurality of stop blocks.Each stop block protrudes from a corresponding cell wall.Each terminal includes one the one C shape structure and one the 2nd C shape structure.Each includes a C shape portion in the one C shape structure and the 2nd C shape structure.C shape portion includes a protruding side.The protruding side of the one C shape structure and the 2nd C shape structure oppositely protrudes out substantially.The one C shape structure includes a base portion, one first bend and one first elastic arm.Base portion forms and is fixed in corresponding terminal groove.First bend extends from the lateral edges of base portion away from the notch of the terminal groove of correspondence.First bend includes a protruding side, and the protruding side of first bend is towards the direction away from the notch of the terminal groove of correspondence.First bend one terminal and towards notch, the notch of first elastic arm terminal groove towards correspondence from first bend extends on the upper side.The 2nd C shape structure includes a contact site, one second bend, one second elastic arm and both wing portions.Contact site is formed at first elastic arm's a end.Second bend extends from contact site.Second bend includes a protruding side, the protruding side of second bend towards an oblique upper to.Second bend one terminal and towards a notch first direction on the lower side away from the terminal groove of correspondence.Second elastic arm extends towards the notch second direction on the lower side away from the terminal groove of correspondence from second bend.Both wing portions is formed at second elastic arm's edge, two opposite sides respectively and near second elastic arm's a end.The contact site is in the top of the upper surface of insulating body.Each alar part is between the notch of the stop block of correspondence and corresponding terminal groove and below stop block, extend.The contact site of a plurality of terminals is lined up two rows, and wherein a row contact site is near the front surface of insulating body, and another row's contact site is near the back surface of insulating body.Second elastic arm includes a section, and section is terminal and crooked towards first elastic arm near second elastic arm's, to form a cambered surface towards this base portion.In each terminal, cambered surface is near the base portion of correspondence, and is pressed down and cambered surface when touching corresponding base portion when contact site, and a C shape structure is out of shape with the 2nd C shape structure simultaneously.

One upper surface, a lower surface, a front surface and surface, a back;

A plurality of terminal grooves; Respectively this terminal groove is to be defined by a notch and relative two cell walls; Wherein one group said terminal groove is arranged with toward this surface, back by this front surface of this insulating body, and forms the said notch of the said terminal groove of this group at this front surface, and the said terminal groove of another group is arranged with by surperficial past this front surface in this back of this insulating body; And at this back surperficial said notch that forms the said terminal groove of this another group; Wherein in two adjacent said terminal grooves, this notch of this terminal groove is positioned at this front surface, and this notch of another this terminal groove is positioned at this surface, back; And

A plurality of terminals; Respectively this terminal includes one the one C shape structure and one the 2nd C shape structure; Wherein each includes a C shape portion in a C shape structure and the 2nd C shape structure; This C shape portion includes a protruding side, and the said protruding side of a C shape structure and the 2nd C shape structure oppositely protrudes out substantially; The one C shape structure includes a base portion, one first bend and one first elastic arm; This base portion forms to be fixed in this corresponding terminal groove; This first bend extends from the lateral edges of this base portion away from this notch of this terminal groove of correspondence; This first bend includes a protruding side; The protruding side of this of this first bend is towards the direction away from this notch of this terminal groove of correspondence, and an end of this first bend is towards this notch, and this notch of this first elastic arm this terminal groove towards correspondence from this first bend extends on the upper side; The 2nd C shape structure includes a contact site, one second bend, one second elastic arm and both wing portions; This contact site is formed at this first elastic arm's a end; This second bend extends from this contact site; This second bend includes a protruding side; The protruding side of this of this second bend towards an oblique upper to; One end of this second bend is towards this notch first direction on the lower side away from this terminal groove of correspondence, and this second elastic arm extends towards this notch second direction on the lower side away from this terminal groove of correspondence from this second bend, and this both wing portions is formed at this second elastic arm's edge, two opposite sides respectively and near this second elastic arm's a end; Wherein this contact site is in the top of this upper surface of this insulating body, and respectively this alar part is between this notch of this stop block of correspondence and corresponding this terminal groove and below this stop block, extend;

Wherein, this second elastic arm includes a section, and this section is near this end of this second elastic arm and towards this first elastic arm bending, to form a cambered surface towards this base portion;

Wherein, in this terminal respectively, this cambered surface is near this base portion of correspondence, and is pressed down and this cambered surface when touching this corresponding base portion when this contact site, and a C shape structure is out of shape with the 2nd C shape structure simultaneously.

In above-mentioned electric connector, preferably, this corresponding base portion of this cambered surface contact.

In above-mentioned electric connector, preferably, this cell wall includes the one edge relative with notch, and stop block extends to a middle section position of cell wall to notch from the edge.

Than the electric connector of prior art, the electric connector that the utility model embodiment discloses has following useful technique effect: can do lessly and thinner, its terminal can produce big contact force, and has advantages such as terminal is not fragile.

Description of drawings

Fig. 1 illustration one traditional electrical connector;

Fig. 2 is the schematic perspective view of the electric connector of the utility model one embodiment;

Fig. 3 is the schematic perspective view of the utility model one embodiment, and its bottom from electric connector shows this electric connector;

Fig. 4 is the vertical view of the electric connector of the utility model one embodiment;

Fig. 5 is the decomposing schematic representation of the electric connector of the utility model one embodiment;

Fig. 6 is the sketch map of the terminal of the utility model one embodiment;

Fig. 7 is the sketch map that contacts earlier the electric connector that afterwards breaks away from function that has of the utility model one embodiment;

Fig. 8 A is the cut-away view along the face line 8-8 of Fig. 7;

Fig. 8 B is the schematic cross-section of the utility model one embodiment, its illustration the insulating body of terminal accommodating in electronic installation;

Fig. 9 is the schematic perspective view of the utility model one embodiment, its illustration one electric connector, carry the printed circuit board (PCB) of electric connector, and one connect electric connector electronic installation;

Figure 10 has shown electric connector, printed circuit board (PCB) and the electronic installation of Fig. 9 with different angles;

Figure 11 is the sketch map that presses down terminal of the utility model one embodiment; And

Figure 12 is the cut-away view along the face line 12-12 of Figure 11.

[main element symbol description]

1 electric connector

2 electric connectors

2 ' electric connector

3 printed circuit board (PCB)s

4 electronic installations

11 terminals

12 insulation shells

13 electronic installations

14 block pieces

21 insulating bodies

22 terminals

22 ' terminal

31 connection pads

32 perforates

33 perforates

111 contact sites

112 recessed sections

113 points

131 connection pads

211 upper surfaces

212 lower surfaces

213 front surfaces

Surface, 214 back

215 terminal grooves

216 stop blocks

217 reference columns

218 reference columns

220 the one C shape structures

221 base portions

222 weld parts

223 first bends

224 first elastic arms

225 contact sites

226 second bends

227 second elastic arms

228 alar parts

229 the 2nd C shape structures

2151 notches

2152 cell walls

2211 hangnails

2212 lateral edges

2213 lateral edges

2231 ends

2261 ends

2271 ends

2272 sections

2273 cambered surfaces.

Embodiment

Following conjunction with figs. details the embodiment of the utility model.

Fig. 2 is the schematic perspective view of the electric connector 2 of the utility model one embodiment.Fig. 3 is the schematic perspective view of the utility model one embodiment, and its bottom from electric connector 2 has shown electric connector 2.Fig. 4 is the vertical view of the electric connector 2 of the utility model one embodiment.Fig. 5 is the decomposing schematic representation of the electric connector 2 of the utility model one embodiment.Fig. 1 includes an insulating body 21 and a plurality of terminal 22 to electric connector 2 shown in Figure 5, and wherein a plurality of terminals 22 are 21 fixings of insulating body.

To shown in Figure 5, according to the utility model one embodiment, insulating body 21 has the shape of the rectangular body of a cardinal principle like Fig. 2, but the utility model does not exceed with this shape.Insulating body 21 can include a upper surface 211 and a lower surface 212 (Fig. 3 shows the clearest), and wherein upper surface 211 is relative with lower surface 212.Upper surface 211 all can have the shape of essentially rectangular with lower surface 212, and both separate the space of a little thickness, thereby constitutes a thin rectangular shape body.Insulating body 21 further can include a front surface 213 and surface, a back 214, and wherein front surface 213 is relative with surface, back 214.Front surface 213 and back surperficial 214 is connected the long side edges of upper surface 211 and lower surface 212 respectively.Multiterminal pilot trench 215 runs through insulating body 21 and forms on thickness direction, and the part terminal groove 215 extend through front surface 213, so on front surface 213 formation corresponding groove 2151; The terminal groove 215 of another part extends through surface, back 214, so on surface, back 214, form corresponding groove 2151.

In other words, one group terminal groove 215 along front surface 213 backward surface 214 direction on front surface 213, be arranged with.Each terminal groove 215 of this group has a notch 2151 on front surface 213.Similarly, the surface 214, back, terminal groove 215 edge of another group is arranged with on surface, back 214 on the direction of front surface 213.Each terminal groove 215 of second group has a notch 2151 on surface, back 214.As scheme demonstration, two groups terminal groove 215 is staggered, so in the in office two adjacent terminal grooves 215, the notch 2151 of a terminal groove 215 is positioned on the front surface 213, and the notch 2151 of other end pilot trench 215 is positioned on the surface, back 214.

As shown in Figure 5, each terminal groove 215 can be 2152 of relative two cell walls and defines.Insulating body 21 can further include a plurality of stop blocks 216.A plurality of stop block 216 corresponding said cell walls 2152.Each stop block 216 self-corresponding cell wall 2152 protrusion.In one embodiment, stop block 216 can extend to a middle section position of cell wall 2152 from the one edge of cell wall 2152, and wherein this edge is near defining terminal groove 215 and the internal groove side wall relative with notch 2151.

With reference to Fig. 5 and shown in Figure 6, each terminal 22 can include a base portion 221, a weld part 222, one first bend 223, one first elastic arm 224, a contact site 225, one second bend 226, one second elastic arm 227, and both wing portions 228.Like Fig. 4 and shown in Figure 5, base portion 221 forms and is fixed in corresponding terminal groove 215.Especially, base portion 221 can include the hangnail 2211 that a plurality of side direction protrude out, hangnail 2211 can with corresponding cell wall 2152 frictional interference, the fixing terminal 22 thus.

Base portion 221 can include both sides of the edge 2212 and 2213.As shown in Figure 4, lateral edges 2212 can be the most the edge near the base portion 221 of notch 2151, and opposite side edge 2213 can be the edge away from notch 2151 base portion 221 farthest.Both sides of the

edge

2212 and 2213 can be relative.Weld part 222 can be from lateral edges 2212 extends on the direction of the notch 2151 towards corresponding terminal groove 215, and first bend 223 can be from the opposite side edge 2213 extends.Specifically, weld part 222 can protrude out and expose corresponding terminal groove 215, makes weld part 222 can be soldered on the corresponding connection pad 31 on the printed circuit board (PCB) 3, and is as shown in Figure 9.

With reference to Fig. 7 and shown in Figure 8, first bend 223 extends from base portion 221.First bend 223 includes protruding side, and this protruding side of first bend 223 is towards the direction away from the notch 2151 of the terminal groove 215 of correspondence, first bend 223 one terminal 2231 and slightly on the upper side towards the notch 2151 of the terminal groove 215 of correspondence.Shown in Fig. 8 A, first bend 223 include one be roughly U-shaped shape.

First elastic arm 224 extends towards notch 2151 direction on the upper side of corresponding terminal groove 215 from the end 2231 of first bend 223, first elastic arm's 224 a terminal contact site 225 that forms.First elastic arm 224 extends the upper surface 211 that surmounts insulating body 21, makes contact site 225 be positioned at the top of upper surface 211.

Second bend 226 extends from contact site 225.Second bend 226 includes protruding side, the protruding side of second bend 226 towards an oblique upper to.The end 2261 of second bend 226 is towards notch 2151 direction on the lower side away from the terminal groove 215 of correspondence.

Second elastic arm 227 extends towards notch 2151 direction on the lower side away from the terminal groove 215 of correspondence from the end 2261 of second bend 226.Second elastic arm 227 includes a section 2272, and section 2272 is near second elastic arm's 227 end 2271, and section 2272 so forms a cambered surface 2273 towards base portion 221 towards first elastic arm, 224 bendings.Second elastic arm 227 extends to insulating body 21 inside from the outside of insulating body 21, makes second elastic arm's 227 end can not collide with insulating body 21 in use.

As shown in Figure 5, both wing portions 228 is formed at second elastic arm's 227 edge, two opposite sides respectively, and near second elastic arm's 227 end 2271.

Shown in Fig. 8 A; Each alar part 228 is positioned at the notch 2151 of the corresponding stop block 216 and the terminal groove 215 of correspondence; Make when contact site 225 is not pressed down; If second elastic arm 227 is all of a sudden pushed away notch 2151, then alar part 228 can be stopped by the stop block 216 of correspondence, and terminal 22 can be avoided by accidental damage.In addition; Each alar part 228 also may extend to the below of corresponding stop block 216; If terminal 22 is by vertical pull-up; Then alar part 228 can be connected on the stop block 216, and second elastic arm's 227 like this end 2271 can be stayed in the insulating body 21, and terminal 22 can be avoided damaging because of the action of vertical pull-up.Moreover as shown in Figure 7, when terminal 22 was displaced sideways, alar part 228 can touch corresponding stop block 216, and so the position of terminal 22 in notch 2151 can be stablized.

With reference to shown in Figure 4, the contact site 225 of terminal 22 can be lined up two rows, and wherein a row contact site 225 is near the front surface 213 of insulating body 21, and another row's contact site 225 is near back surperficial 214 of insulating body 21.This kind two row's designs can let electric connector 2 more stable and firm under continuous loading.

To shown in Figure 12, when contact site 225 beginnings of terminal 22 were pressed down by electronic installation 4, electronic installation 4 can flexibly be supported by first elastic arm 224 with reference to Fig. 9.When the contact site 225 of terminal 22 further was pressed down, second elastic arm's 227 cambered surface 2273 can contact base portion 221.Begin this moment, electronic installation 4 can flexibly be supported by first elastic arm 224 and second elastic arm 227.After contact, cambered surface 2273 beginning slippages on base portion 221, and let second elastic arm's 227 the moving direction of end 2271 along with change.Second elastic arm's 227 end 2271 is moved away from the direction of the notch 2151 of the terminal groove 215 of correspondence by court through the guiding of base portion 221 then.After the contact site 225 of terminal 22 was pressed down fully, second elastic arm 227 extended in the corresponding terminal groove 215, and is positioned on the base portion 221.This kind terminal design is fit to have long distance and moves the electric connector of contact site, and need not to adopt the heavy insulation body, to hold second elastic arm 227.It should be noted that and adopt this kind terminal design, the thickness of insulating body 21 can further reduce, thereby can obtain to be thin electric connector 2 than the traditional electrical connector.

When the contact site 225 of terminal 22 was pressed down, second elastic arm 227 was close to base portion 221, caused contact site 225 to apply the corresponding connection pad 41 of extra contact force to electronic installation 4.Extra contact force can reduce the contact impedance between contact site 225 and the connection pad 41.

Fig. 8 B is the schematic cross-section of the utility model one embodiment, its illustration terminal 22 ' be contained in electronic installation 2 ' insulating body 21.Shown in Fig. 8 A and Fig. 8 B, than similar traditional electrical connector, electronic installation 2 ' can provide electronic installation bigger contact force.Terminal 22 ' include one the one C shape structure 220 and one the 2nd C shape structure 229, wherein one of a C shape structure 220 end connects an end of the 2nd C shape structure 229.Each includes a C shape portion in the one C shape structure 220 and the 2nd C shape structure 229, and this C shape portion includes a protruding side (convex side), and wherein two protruding sides oppositely protrude out substantially.The one C shape structure 220 includes a base portion 221, one first bend 223, and one first elastic arm 224.Base portion 221 forms and is fixed in corresponding terminal groove 215.First bend 223 edge away from the notch 2151 of the terminal groove 215 of correspondence on base portion 221 extends.First bend 223 includes protruding side, and the protruding side of first bend 223 is towards the direction away from the notch 2151 of the terminal groove 215 of correspondence.One end of first bend 223 is towards the notch 2151 of the terminal groove 215 of correspondence.First elastic arm 224 extends from first bend 223 and towards notch 2151 direction on the upper side of corresponding terminal groove 215.The 2nd C shape structure 229 includes a contact site 225, one second bend 226, one second elastic arm 227, and both wing portions 228.Contact site 225 is formed at first elastic arm's 224 a end.Second bend 226 extends from contact site 225.Second bend 226 includes protruding side, the protruding side of second bend 226 towards an oblique upper to, the end 2261 of second bend 226 is towards notch 2151 direction on the lower side away from the terminal groove 215 of correspondence again.Second elastic arm 227 extends away from notch 2151 direction on the lower side of the terminal groove 215 of correspondence from second bend, 226 courts.Both wing portions 228 is formed at second elastic arm's 227 edge, two opposite sides respectively, and near second elastic arm's 227 terminal 2271.

The 2nd C shape structure 229 can further include a section 2272, and section 2272 is near second elastic arm's 227 end 2271, and section 2272 so forms a cambered surface 2273 towards base portion 221 towards first elastic arm, 224 bendings.In one embodiment, cambered surface 2273 is what to separate with 221 of base portions.In another embodiment, when the contact site 225 of the 2nd C shape structure 229 is not pressed down, cambered surface 2273 contact base portions 221.

The one C shape structure 220 is all contributed on corresponding electronic installation with the 2nd C shape structure 229 and is contacted strength.When the contact site 225 of the 2nd C shape structure 229 is pressed down by an electronic installation and cambered surface 2273 when not touching base portion 221, pressing down of contact site 225 lets a C shape structure 220 produce obviously distortion, thereby produces the contact force to electronic installation; And behind cambered surface 2273 contact base portions 221, the 2nd C shape structure 229 is out of shape simultaneously, thereby electronic installation is produced another extra contact force.Hence one can see that, more only has the terminal of a C shape structure, terminal 22 ' bigger contact force can be provided.

In one embodiment, when the contact site 225 of the 2nd C shape structure 229 was not pressed down, cambered surface 2273 can contact base portion 221.This kind design produces similar precompressed effect (preloading effect), lets terminal 22 ' at terminal 22 ' when beginning to contact with electronic installation, promptly have rigidity.

With reference to shown in Figure 10, insulating body 21 can further include two

reference columns

217 and 218,

reference column

217 and 218 oneself insulate the lower surface 212 of body 21 to extending below.Accordingly, printed circuit board (PCB) 3 can include two perforates 32 and 33.Two reference columns 217 can have different lateral dimensions with 218, and two

perforates

32 and 33 also have different lateral dimensions accordingly, make electric connector 2 anti inerts and by proper installation.

Shown in Fig. 8 A; In another embodiment, when contact site 225 is not pressed down, the base portion 221 that second elastic arm's 227 of corresponding terminal 22 cambered surface 2273 close are corresponding; Like this when electronic installation presses down contact site 225, but second elastic arm, 227 butt base portions 221.Cambered surface 2273 can retrain terminal 22 with contacting of 221 of base portions, the electronic installation that makes contact site 225 connection firmly, and can not receive fierce vibration because of electric connector 2, let contact site 225 and the electronic installation of installing separate.This kind contact site can be guaranteed stable electric power transfer with firm connection the between electronic installation.Refer again to terminal shown in Figure 1 11; When contact site 111 is pressed down; The point 113 of terminal 11 is not done any contact; Therefore terminal 11 is not restrained fully, and the contact site 111 of terminal 11 can't firmly contact with the connection pad 131 of correspondence, thereby the contact site 111 of terminal 11 may be opened with the connection pad of electronic installation 13 in 131 minutes.131 illusive instabilities that may cause current delivery that contact of this kind terminal 11 and connection pad.

In addition, terminal 11 has a U-shaped bending section, and comparatively speaking terminal 22 has first bend 223 and second bend 226.When the contact site 111 of terminal 11 is pressed down, the distortion of U-shaped bending section, thereby between contact site 111 and connection pad 131, produce contact force.On the other hand, when the contact site 225 of terminal 22 is pressed down, 223 distortion of first bend, thereby produce a contact force.In addition, when cambered surface 2273 with after base portion 221 contacts, 226 distortion of second bend have additionally increased contact force.Therefore, the terminal 11 that the terminal 22 that has first bend 223 and second bend 226 can more only have unique U-shaped bending section can produce bigger contact force.Also because so, the electric connector 2 that includes terminal 22 can be used for transmitting big electric current.

Again, in traditional electrical connector 1, the point 113 of terminal 11 can contact block piece 14, avoids terminal 11 to be pulled out thus.So point 113 is short comparatively rigid, therefore when applying bigger pulling force, point 113 damages easily.On the contrary; In the utility model; Because second elastic arm's 227 of terminal 22 cambered surface 2273 is near the base portion 221 of correspondence, so second elastic arm 227 is longer, so have bigger elasticity; Therefore when second elastic arm's 227 section 2272 touched stop block 216, section 2272 was not fragile.

In sum, the embodiment of the utility model has disclosed an electric connector, and this electric connector includes an insulating body and a plurality of terminal.When terminal was not pressed down, the end of each terminal was positioned at insulating body, and so the end of terminal can not collide insulating body.Each terminal includes a base portion and an elastic arm, and wherein the end of terminal is positioned on the elastic arm.The oblique extension of elastic arm and having near a terminal cambered surface.When the contact site of terminal was pressed down, cambered surface is slippage on base portion, and the elastic arm progressively shifts to base portion simultaneously.At last, the elastic arm is contained in insulating body.Because of having this kind characteristic, compare with the traditional electrical connector, electric connector can be less and thinner.Contacting and can produce extra contact force between cambered surface and base portion to being positioned at the connection pad on the electronic installation on the contact site of terminal, thus the contact impedance between contact site and connection pad reduced.Insulating body has stop block, and each terminal has alar part, and alar part can touch stop block.The terminal that alar part and stop block can prevent not to be pressed down is all of a sudden moved.

The technology contents and the technical characterstic of the utility model disclose as above, yet those of ordinary skill in the art still maybe be based on the teaching of the utility model and announcement and made all replacement and modifications that does not deviate from the utility model spirit.Therefore, the protection range of the utility model should be not limited to the content that embodiment discloses, and should comprise various replacement and the modifications that do not deviate from the utility model, and is contained by claims.

Claims

1. an electric connector is characterized in that, includes:

One upper surface, a lower surface, a front surface and surface, a back;

2. electric connector according to claim 1; It is characterized in that; This insulating body includes this lower surface from this insulating body to one first reference column that extends below and one second reference column, and wherein this first reference column has different lateral dimensions with this second reference column.

3. electric connector according to claim 2 is characterized in that, this first bend includes a U-shaped shape.

4. electric connector according to claim 2 is characterized in that, this second bend includes a U-shaped shape.

5. electric connector according to claim 1 is characterized in that this cell wall includes the one edge relative with this notch, and this stop block extends to a middle section position of this cell wall to this notch from this edge.

6. an electric connector is characterized in that, includes:

One upper surface, a lower surface, a front surface and surface, a back;

7. electric connector according to claim 6 is characterized in that, this corresponding base portion of this cambered surface contact.

8. according to claim 6 or 7 described electric connectors; It is characterized in that; This insulating body includes this lower surface from this insulating body to one first reference column that extends below and one second reference column, and wherein this first reference column has different lateral dimensions with this second reference column.

9. electric connector according to claim 8 is characterized in that this cell wall includes the one edge relative with this notch, and this stop block extends to a middle section position of this cell wall to this notch from this edge.