CN2417581Y

CN2417581Y - Electric connector

Info

Publication number: CN2417581Y
Application number: CN00216988U
Authority: CN
Inventors: 吴熴灿
Original assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Current assignee: Foxconn Kunshan Computer Connector Co Ltd; Hon Hai Precision Industry Co Ltd
Priority date: 2000-03-24
Filing date: 2000-03-24
Publication date: 2001-01-31
Anticipated expiration: 2010-03-24

Abstract

The utility model relates to an electric connector, comprising an insulation main body and a plurality of conductive terminals. The insulation main body is provided with a plurality of terminal containing grooves, each of conductive terminals comprises a free section and a fixed section, wherein, the fixed section is fixed in a corresponding containing groove of the insulation main body, a middle part is provided with a terminal connecting part, and an end part is provided with a fixed part which is fixed with the insulation main body in an interference mode. Furthermore, the free section is provided with a first elastic part, a second elastic part, and a contact part which are integrally connected, wherein, the first elastic part is fixedly connected with the fixed section, the contact part is positioned between the first elastic part and the second elastic part; the free section extends out from one end of the fixed section, and the extending height is higher than the height of the insulation main body to enable the contact part to expose out of the corresponding containing groove.

Description

Electric connector

The relevant a kind of electric connector of the utility model refers to a kind ofly be installed on electric connector on the printed circuit board (PCB) with the surface adhering technology especially.

Modern science and technology is at a high speed flourishing, and the development of information electronic product is at a tremendous pace, is used for the electric connector of communication electronic product, needs more and more that function is good, shape is small and exquisite, occupy the few product in machine intimate space.In the prior art relevant with this case, the amplitude very thin because of the conducting terminal shape, can springing that has is little, and the elastic force that provides is little, can not keep electrically contacting reliably with electronic installation, have then in order there to be the springing amplitude that makes conducting terminal elastic force enough big, that provide enough abundant, contact and make electric connector and electronic installation have excellent electrical property, thereby do connector too complicated and increased manufacturing cost greatly, be unfavorable for the utilization of industry in fact.See also the Taiwan patent application No. 81107106, the conducting terminal of the cloudy socket of the disclosed electric connector of this patent can provide enough big elastic force, but insulating body that should the moon socket is done highlyer than terminal free height, causes volume too big.And the springing of conducting terminal is confined in the terminal containing slot, but makes the amplitude of its springing too little.In addition, the convex plug that connects with this moon socket must be made the assorted convex shape that covers of the terminal containing slot that can insert cloudy socket, makes the manufacturing cost of butt joint convex plug bigger.See also United States Patent (USP) the 5th, 980, No. 335, the elastic force of the conducting terminal of the disclosed electric connector of this patent is enough big, and bigger springing amplitude is arranged, but metal terminal and insulator are one-body molded, the contact site of conducting terminal is to be made and pull and stretch is formed with a contact head by softer metal material, the termination section of conducting terminal is to form elastic arm by the harder metal material manufacturing different with the contact site material of one, therefore the manufacturing process of this electric connector is very complicated, and manufacturing cost is too high.

The purpose of this utility model is to provide a kind of electric connector, whole height is very low during this electric connector work, termination contact portion extends outside the insulating body and has big springing amplitude, can connect with the plane electric connector that docks, and terminal is fixed, can bear bigger external force, and the SMT pin end of terminal has preferable flatness, simultaneously terminal can make stress disperse when work and stressed good, can increase the service life, in addition, conducting terminal is providing smaller elastic force with the starting stage that electric connecting connector is connected, and under butt joint terminal stage and operating state, can provide bigger butt joint elastic force, so that butt joint is easy to finish, and the contact force needs can satisfy work the time.

For achieving the above object, the utility model electric connector includes insulating body and plurality of conductive terminals, and the plurality of terminals accepting groove is set on the insulating body.Each conducting terminal comprises free section and canned paragraph, wherein canned paragraph is fixed in the respective terminal accepting groove of aforementioned dielectric body, its middle part is provided with the SMT termination section that can connect mutually with printed circuit board (PCB), its rear portion is provided with and can interferes fixing stiff end with insulating body, and the contact site that free section has first elastic part that one links to each other, second elastic part and can connect mutually with electronic installation, wherein, first elastic part directly links to each other with canned paragraph, and the contact site is between first elastic part and second elastic part.This free section is extended from an end of canned paragraph, and extended height makes contact site be exposed to outside the accepting groove greater than insulating body.

Owing to adopt such scheme, whole height is very low during the work of the utility model electric connector, termination contact portion extends outside the insulating body and has big springing amplitude, can connect with the plane electric connector that docks, and terminal is fixed, can bear bigger external force, and the SMT pin end of terminal has preferable flatness, simultaneously terminal can make stress disperse when work and stressed good, can increase the service life, conducting terminal is providing smaller elastic force with the starting stage that electric connecting connector is connected, and under butt joint terminal stage and operating state, can provide bigger butt joint elastic force, so that butt joint is easy to finish, and the contact force needs can satisfy work the time.

The utility model is described in further detail below in conjunction with drawings and Examples.

Fig. 1 is the stereogram of the utility model electric connector.

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

Fig. 3 is the cutaway view of electric connector shown in Figure 2 in operating state.

See also Figure 1 and Figure 2, the utility model electric connector 1 includes a longitudinal insulating body 10 and a plurality of conductive terminals 12 that aspect ratio is less.Insulating body 10 has upper surface 100, lower surface 102 and is located at plurality of terminals accepting groove 11 in the insulating body 10, accepting groove 11 is enclosed by upper wall 111, lower wall 112 and connection upper wall 111 two side 113 and the next door 117 with lower wall 112, and accepting groove 11 has a side opening 114, upper wall 111 has a upper shed 115 that connects upper surface 100 and communicate with side opening 114, and lower wall 112 has the under shed 116 of a perforation lower surface 102.

Each conducting terminal 12 comprises free section 120 and canned paragraph 126, wherein canned paragraph 126 is fixed in the respective terminal accepting groove 11 of aforementioned dielectric body 10, the end of this canned paragraph 126 is provided with the effect of can interfering with the interference groove 104 of insulating body 10 and fixing stiff end 128, stiff end 128 is provided with the SMT termination section 127 that can connect mutually with the printed circuit 30 of printed circuit board (PCB) 3 with the middle part of 121 of first elastic part, this termination section 127 is passed the under shed 116 of insulating body 10, and exceed lower surface 102 slightly, the in addition end opposite with stiff end 128 of termination section 127 extends into from the front end of termination section 127 and keeps in the groove 110, and is resisted against on the upper surface of lower wall 112 in the contact-making surface mode of lying low.And the contact site 124 that free section 120 includes first elastic part 121 that one links to each other, second elastic part 122 and can connect mutually with electronic installation 2, wherein, first elastic part 121 directly links to each other with canned paragraph 126, and contact site 124 is between first elastic part 121 and second elastic part 122.This free section 120 is extended from an end of canned paragraph 126, because its development length is long and first elastic part, 121 middle parts have one to make contact site 124 tip-tilted bendings, its extended height exceeds outside the accepting groove 11 contact site 124 greater than insulating body 10, can connect with tabular electronic installation 2 and realizes good the contact.In addition, second elastic part 122 bends downwards from the front end of contact site 124 extends and makes its abutment end 125 partly be contained in the terminal containing slot 11, when the contact site 20 of electronic installation 2 compresses terminal 12 and the part that will extend terminal containing slot 11 when being pressed in the accepting groove 11, the abutment end 125 of second elastic part 122 can play the guiding role, and breaks down in order to avoid collide.See also shown in Figure 2, under mated condition not, second elastic part 122 is in overhead positions, when electronic installation 2 and the utility model electric connector 1 connect, contact site 20 elder generations of butt joint electric connector 2 connect with the contact site 124 of the utility model electric connector 1, and past gradually pressing down so that strains take place first elastic part 121.Along with pressure increases, the strain of first elastic part 121 also increases gradually, the abutment end 125 of second elastic part 122 is contacted with fixed part 126 gradually, just enter second

elastic part

122 and 121 strain stages while of first elastic part so continue to increase terminal 12 with pressure, the abutment end 125 of the second last elastic part 122 lies low fully on the upper surface of fixed part 126, sees also shown in Figure 3.At this moment, be under the operating state, whole terminal 12 is almost completely accommodated in the accepting groove 11, so the working depth of the utility model electric connector 1 is minimum, and first elastic part 121 and second elastic part 122 elastic force is provided simultaneously, the abutment end 125 of second elastic part 122 is resisted against on the fixed part 126 in the good mode of lying low of stress distribution, thereby terminal 12 stress disperse, force-bearing situation is good, helps prolonging the useful life of electric connector 1.And when first elastic part 121 and second elastic part 122 provide elastic force simultaneously, the coefficient of elasticity of terminal 12 significantly increases, make terminal 12 bigger elastic force is provided for butt joint electric connector 2 in the final stage of butt joint, excellent electrical property contacts to make the utility model

electric connector

1 and 2 of electric connectors of butt joint have very.Correspondingly, because the initial stage coefficient of elasticity of butt joint is smaller, helps butt joint and finish smoothly.

See also Fig. 2 and shown in Figure 3, the front end of the SMT termination section 127 of the conducting terminal 12 of the utility model electric connector 1 extends in the maintenance groove 110 of 111,112 of the next door 117 of accepting groove 11 front portions and last lower walls, and lie low on the upper surface of lower wall, the rear end then be fixed in stiff end 128 one of interfering in the groove 104 and link to each other, use termination section 127 fixing and can make terminal 12 bear the influence of big elastic force and do not get loose, and make termination section 127 keep higher flatness, so the utility model electric connector 1 has favorable mechanical and electric property.

Claims

1. electric connector can be engaged on the printed circuit board (PCB) for electrically connecting with other electronic installations, and its insulating body comprises the plurality of terminals accepting groove, and the inner wall edge appropriate position, both sides of accepting groove is respectively equipped with the interference groove; Plurality of conductive terminals is contained in the terminal containing slot of aforementioned dielectric body, free section and canned paragraph that it comprises, it is characterized in that: canned paragraph is connected with first elastic part of aforementioned free section, and be contained in the respective terminal accepting groove of aforementioned dielectric body, one end of this canned paragraph is the stiff end that fixes with insulating body, stiff end and the mutual interference effect of aforementioned interference groove, middle part between the stiff end and first elastic part is provided with the termination section that can do surface adhesion welding with described printed circuit board (PCB), and free section has the contact site that can connect mutually with electronic installation, it extends from the other end of first elastic part with respect to canned paragraph, extended height makes contact site be exposed to outside the accepting groove greater than insulating body, and the contact site of free section continuation extension is bent to form second elastic part downwards.

2. electric connector according to claim 1 is characterized in that: insulating body has the upper surface lower surface and is located at plurality of terminals accepting groove in the insulating body, and accepting groove is enclosed by upper wall, lower wall and the two side that connects upper wall and lower wall and forms.

3. electric connector according to claim 2 is characterized in that: the accepting groove of insulating body has side opening, and upper wall has the upper shed that connects upper surface and communicate with side opening, and lower wall has the under shed that connects lower surface.

4. according to claim 2 or 3 described electric connectors, it is characterized in that: the termination section of aforementioned terminal canned paragraph runs through under shed extends downwards, and exceeds lower surface slightly, and the front end of termination section extends in the accepting groove, and lies low on the upper surface of lower wall.

5. electric connector according to claim 1 is characterized in that: the abutment end of the second elastic part end extends in the accepting groove, and in working order down, second elastic part is compressed, and abutment end then lies flat against on the upper surface of aforementioned fixation section.