[background technology]
In the prior art, announce the 6th, 743 as United States Patent (USP), a kind of electric connector of No. 043 announcement, it is assembled in and is used for connecting chip module on the circuit board.This electric connector comprises the pedestal of being made up of upper strata holding board and lower floor's holding board and is housed in plurality of conductive terminals in the pedestal that upper and lower layer holding board is respectively equipped with the upper and lower accepting hole of accommodating conducting terminal.Wherein conducting terminal comprises the last electric conductor that is positioned at both sides and electric conductor down, and upper and lower electric conductor protrudes from upper strata holding board and lower floor holding board respectively to reach electrical the contact with chip module and circuit board respectively.Be crimped with one section spring and tube-like piece between the upper and lower electric conductor, upper and lower electric conductor comprises plug shape base portion and the contact site that extends from base portion respectively, following electric conductor further is provided with from the upwardly extending bar of base portion portion, spring and tube-like piece are set in down in the bar portion of electric conductor, and tube-like piece protrudes out spring and conflict on the base portion of last electric conductor in the top.Apply rightabout elastic force respectively for upper and lower electric conductor by spring and tube-like piece, thereby make electric connector reach switching performance better.
Connect effect preferably though above-mentioned electric connector has been obtained by spring and tube-like piece, yet conducting terminal is made up of separately last electric conductor, following electric conductor, spring and tube-like piece, does not connect into an integral body.When conducting terminal is assembled into pedestal, to play electric conductor to pack in the following accepting hole of lower floor's holding board earlier, then spring and tube-like piece are set in down in the bar portion of electric conductor successively, to go up electric conductor again is installed on the tube-like piece, at last upper strata holding board group is located on lower floor's holding board, thereby conducting terminal integrally is housed in the formed receiving space of upper and lower accepting hole.Therefore, above-mentioned electric connector terminal is because part is more, and assembling is difficult and lose part easily, thereby causes the increase of cost.
Given this, be necessary to provide a kind of improved electric connector terminal in fact, to overcome the defective of above-mentioned electric connector terminal.
[utility model content]
The purpose of this utility model provides a kind of electric connector terminal that is easy to assemble.
For achieving the above object, the technical scheme that the utility model adopted is as follows: a kind of electric connector terminal, it comprises conducting terminal, following conducting terminal, elastic component and sleeve.Wherein, last conducting terminal is provided with base portion, from the upwardly extending junction of base portion, the junction that following conducting terminal is provided with base portion, extends downwards from base portion.Elastic component is located between conducting terminal and the following conducting terminal and its two ends offset with the base portion of upper and lower conducting terminal respectively, and sleeve is positioned at the periphery of upper and lower conducting terminal and elastic component.The base portion both sides of described upper and lower conducting terminal are outward extended with projection respectively, offer chute on the described sleeve, and the projection of upper and lower conducting terminal is housed in the above-mentioned chute respectively and can slides up and down along chute.
Compared with prior art, the utlity model has following beneficial effect: the upper and lower conducting terminal of this electric connector terminal, elastic component link into an integrated entity by sleeve, are convenient to install and be easy to processing.
[embodiment]
As depicted in figs. 1 and 2, the utility model is a kind ofly can be assembled to the electric connector terminal 100 that is used to electrically connect chip module (not shown) and printed circuit board (PCB) (not shown) in the insulating body (not shown).This electric connector terminal 100 comprises conducting terminal 1, following conducting terminal 2, is located at elastic component 3 and sleeve 4 between conducting terminal 1 and the following conducting terminal 2.Sleeve 4 is around in upper and lower conducting terminal 1,2 and elastic component 3 all sides, with the two ends of upper and lower conducting terminal 1,2 difference flexible fastenings at elastic component 3.
Please consult Fig. 2 and Fig. 3 by emphasis, last conducting terminal 1 is roughly tabular, it comprise the base portion 11 that is located at the lower end, from base portion 11 make progress vertical extended bar shaped junction 12 and from base portion 11 both sides the extended projection 13 that cooperates with sleeve 4 respectively.The top of junction 12 is provided with conical contact tip 14, and conical contact tip 14 can connect mutually with the conducting strip of chip module (not shown).Base portion 11 also is extended with taper pressure section 15 downwards, offsets in order to the top with elastic component 3.As shown in Figure 3, the axis of conducting terminal 1 is departed from the summit of pressure section 15, thereby makes taper pressure section 15 both sides not symmetrical.
Following conducting terminal 2 is oppositely arranged with last conducting terminal 1, and two conducting terminals 1,2 are assembled with orthogonal manner.In the present embodiment, following conducting terminal 2 is basic identical with shape and the structure of last conducting terminal 1, it comprises base portion 21, from the junctions 22 of base portion 21 extensions downwards, be arranged on the projection 23 of base portion 21 both sides.Junction 22 ends are provided with conical contact tip 24, and contact 24 is used for connecting mutually with the conducting strip of the printed circuit board (PCB) (not shown) that is positioned at insulating body (not shown) below.Base portion 21 extends upward and is provided with taper pressure section 25, offsets with the bottom with elastic component 3.Only, the summit of the pressure section 25 of following conducting terminal 2 be positioned at conducting terminal 2 the axle online, pressure section 25 both sides are to be symmetrical arranged.
In the present embodiment, elastic component 3 is common helical spring, and elastic component 3 is housed in sleeve 4 inside.The pressure section 15 that the two ends up and down of this elastic component 3 are resisted against conducting terminal 1 respectively reaches the pressure section 25 of conducting terminal 2 down, elastic component 3 can be fixed between two conducting terminals 1,2 thus.
As depicted in figs. 1 and 2, sleeve 4 is located at the periphery of upper and lower conducting terminal 1,2 and elastic component 3, thereby the three is connected together.Sleeve 4 is for vertically cylindrical, and it wall portion 41 that comprises both ends open reaches first chute 42 and second chute 43 that is arranged with formation from the two ends of wall portion 41 respectively.Two chutes 42,43 are formed by the long and narrow conduit that two symmetries are located in the wall portion 41, and the plane at two chutes, 42,43 places is perpendicular.When this electric connector terminal 100 is formed one, two projections 13 of last conducting terminal 1 are housed in two conduits of first chute 42 of sleeve 4 respectively and can slide up and down, and two projections 23 of following conducting terminal 2 are housed in two conduits of second chute 43 of sleeve 4 respectively and can slide up and down.
See also Fig. 4 and Fig. 5, the assembling process of this electric connector terminal 100 is as follows, at first will go up conducting terminal 1 in first chute 42 of sleeve 4 is slipped in the below, the sleeve 4 and supporting on the pressure section 15 at last conducting terminal 1 of then elastic component 3 being packed into from the below; Then pass first chute 42 and upwards push elastic component 3 by a tabular thing 5 of strip, make elastic component 3 upwards compression until sleeve 4 in, form enough spaces under conducting terminal 2 pack into, to descend conducting terminal 2 to insert in second chute 43 then from sleeve 4 one sides, at last plate object 5 is taken out and release elastic component 3, the lower end of elastic component 3 is supported on the pressure section 25 of following conducting terminal 2, thereby finished the assembling of whole electric connector terminal 100.At this moment, last conducting terminal 1 is assembled in the sleeve 4 in the mode that can slide up and down relatively each other with following conducting terminal 2, and the projection 13,23 of upper and lower conducting terminal 1,2 is housed in first, second chute 42,43 of sleeve 4 respectively and can slides in first, second chute 42,43.
Electric connector terminal 100 of the present utility model is when work, upper and lower conducting terminal 1,2 all is in movable state, and the contact 14,24 of upper and lower conducting terminal 1,2 connects mutually with the conducting strip of chip module (not shown) and printed circuit board (PCB) (not shown) respectively.Can be respectively during upper and lower conducting terminal 1,2 pressurizeds along first, second chute 42,43 slide relative of sleeve 4, compression elastic piece 3 simultaneously.When above-mentioned pressure was cancelled, the elastic component 3 that supports between upper and lower conducting terminal 1,2 forced upper and lower conducting terminal 1,2 to return to initial condition.
This electric connector terminal 100 has compared with prior art adopted cylindrical sleeve 4 that upper and lower conducting terminal 1,2 and elastic component 3 are assembled into an integral body, thereby has been convenient to electric connector terminal 100 is assembled to insulating body (not shown).The upper and lower conducting terminal 1,2 of this electric connector terminal 100 is tabular, therefore can directly be stamped to form by sheet material, does not need through the additional machining processes program, therefore the processing cost of having saved whole electric connector terminal 100 greatly.In addition, the pressure section 15 of last conducting terminal 1 is asymmetric pyramidal structure, the summit of pressure section 15 is not online at the axle of last conducting terminal 1, therefore when electric connection terminal 100 starts, beat can take place contacting with the wall portion 41 of sleeve 4 in last conducting terminal 1, thereby makes electric connector terminal 100 have electrical characteristic preferably.
In the aforementioned preferred embodiments, upper and lower conducting terminal 1,2 is tabular, and sleeve 4 is cylindrical.But the utility model is not limited to above structure, and a plug shape terminal structure in the conducting terminal employing known techniques can be arranged in two conducting terminals 1,2, and sleeve also can change cuboid into by cylindrical shape.