CN201142441Y

CN201142441Y - Socket structure with zero insertion force

Info

Publication number: CN201142441Y
Application number: CNU2007201965318U
Authority: CN
Inventors: 许峰坚; 龚文峰; 陈宏尧
Original assignee: Suyin Electronics Dongguan Co Ltd
Current assignee: Suyin Electronics Dongguan Co Ltd
Priority date: 2007-12-27
Filing date: 2007-12-27
Publication date: 2008-10-29
Anticipated expiration: 2017-12-27

Abstract

The utility model discloses a socket structure with zero insertion force, which comprises a chip module, a terminal block assembly, a plurality of conductive terminals and a frame assembly, wherein the terminal block assembly further includes a protection cover, a plurality of elastic assemblies and a terminal block; terminal holes for accommodating the plurality of conductive terminals and a first bump are arranged in the middle conductive region of the terminal block; a pair of grooves for accommodating the elastic assemblies and a pair of hooks are respectively arranged on the front and the rear end of the conductive region; a moving space h is formed by the hanging surface of the hooks and the surface of the first bump in the conductive region; the protection cover is positioned in the moving space h of the terminal block through the engagement of the bump on the protection cover and the hooks on the terminal block; via-holes with the same number as the terminal holes and a second bump are formed in the middle connection region of the protection cover; and the protection cover can accommodate the contact ends of the conductive terminals in the via-holes by means of the elastic support of the elastic assemblies in the moving space h , thus protecting the terminals from being damaged.

Description

The Zero plug-in force socket structure

Affiliated technical field

The utility model relates to a kind of Zero plug-in force socket, refers in particular to a kind ofly to be positioned at the plurality of conductive terminals of terminal base, the Zero plug-in force socket that is out of shape or ruptures to avoid plurality of conductive terminals to be subjected to external force by over cap with protection.

Background technology

Zero insertion force (LGA, Land Grid Array) socket is used for chip module is connected to circuit board, it generally has lamellar and is connected to the insulating body of circuit board, be provided with conduction region in the insulating body middle part, be equipped with the plurality of conductive terminals that is arranged in conduction region, these conducting terminals have better elasticity and part is naked outside revealing insulating body, when the conducting terminal desire connects with chip module, must push that external force makes conducting terminal generation strain and elasticity is connected on the electric conductor of chip module by one, thereby reach and being electrically conducted of chip module, as Chinese patent application CN 200620073492, CN 200620070311 and CN have just disclosed the Zero plug-in force socket structure of above-mentioned this type for No. 200520110672.

Yet, such socket well connects in order to guarantee chip module and circuit board, the outer conducting terminal of exposed insulating body must have enough elastic force to be connected on the electric conductor of chip module, so conducting terminal needs certain elastic arm apart from length and provides, so just mean that the outer that part of conducting terminal of exposed insulating body just has certain length, but, the outer that part of conducting terminal of the exposed insulating body of this certain-length is easy to deform under socket assembling or external force effect or rupture, moreover, along with the density between the conducting terminal of lga socket is increasing, risk of short-circuits between terminal just might take place because of the effect of external force in exposed insulating body outer that part of conducting terminal more.

In view of this, the utility model designer is at above-mentioned shortcomings and deficiencies, and process studies for a long period of time, and cooperates the utilization of scientific principle, creates a kind of utility model design that can solve above-mentioned deficiency and defective finally.

Summary of the invention

The main purpose of the utility model provides a kind of Zero plug-in force socket structure, is positioned at the plurality of conductive terminals of terminal base by over cap with protection, avoids conducting terminal to be subjected to external force and is out of shape or ruptures.

For achieving the above object, the utility model can be realized by following technical scheme: the utility model provides a kind of Zero plug-in force socket structure, and this socket includes a chip module, a terminal base assembly, plurality of conductive terminals and a frame assembly; Wherein, the terminal base assembly is used to accept chip module, further comprise an over cap, plurality of elastic assembly and a terminal base again, the recessed conduction region that is provided with in the middle of this terminal base, in conduction region, be provided with the terminal hole and first projection of accommodating plurality of conductive terminals, also respectively be provided with a pair of groove and a pair of suitable flexible hook, the hanging support face of these hooks and first lug surface common activity space h that forms in conduction region of being that is used for ccontaining elastic parts again in the front and back end of conduction region; This over cap relies on set concave station to cooperate with in the activity space h that is positioned terminal base with hook on the terminal base, is provided with through hole and some second projections with number such as terminal hole in its centre accepting area; This over cap relies on the resiliency supported of elastic parts that the conducting terminal contact jaw is contained in the through hole in activity space h, thereby reaches the purpose that the protection terminal is avoided destroying.

Compared with prior art; advantage of the present utility model is: establish an over cap on terminal base; and utilize the elastic parts that is positioned in the terminal base groove to the over cap resiliency supported; thereby, make conducting terminal can not be subjected to the effect of external force and deform or rupture to reach the purpose of protection conducting terminal.

Description of drawings

Fig. 1 is the three-dimensional exploded view of the utility model specific embodiment;

Fig. 2 is the terminal base assembly three-dimensional exploded view of the utility model specific embodiment;

Fig. 3 is the frame assembly three-dimensional exploded view of the utility model specific embodiment;

Fig. 4 a is over cap when action state cutaway view of the utility model specific embodiment;

Fig. 4 b is over cap when action state enlarged diagram of the utility model specific embodiment;

Fig. 5 a is the over cap operate condition cutaway view not of the utility model specific embodiment;

Fig. 5 b is the over cap operate condition enlarged diagram not of the utility model specific embodiment.

The 10-chip module, 20-conducting terminal, 30-terminal base assembly, 31-over cap; the 311-accepting area, 312-through hole, 313-second projection, 314-fool proof post; the 315-concave station, 316-guiding face, 32-elastic parts, 321-abutting part; the 322-location division, 323-support portion, 33-terminal base, 331-conduction region; the 332-terminal hole, 333-first projection, 334-groove, 335-hook; 336-hanging support face, 337-projection, 41-gland, 411-main board; the 412-side plate, 413-press section, 414-first sleeve; the 415-tongue, 42-depression bar member, 421-depression bar; the 4211-location division, 4212-force section, 4213-operating portion; the 422-brake component, 43-framework, 431-diapire; the 432-central opening, 433-recess, 434-sidewall; 435-second sleeve, 436-bayonet socket, 437-grab.

Embodiment

For ease of describing enforcement structure of the present utility model in detail, existing conjunction with figs. is described as follows the utility model in detail in conjunction with specific embodiment of the utility model:

See also Fig. 1, shown in 2,1 specific embodiment for the utility model Zero plug-in force socket structure, this socket includes a chip module 10, one terminal base assembly 30, a plurality of conductive terminals 20 and a frame assembly 40, wherein, terminal base assembly 30 is used to accept chip module 10, further comprise an over cap 31 again, a plurality of elastic assembly 32 and a terminal base 33 are formed, this terminal base 33 is tabular square configuration, the middle recessed conduction region 331 that is provided with in order to connect chip module 10, in conduction region 331, be provided with and accommodate the terminal hole 332 that plurality of conductive terminals 20 arranges with matrix form and be distributed in first projection 333 between the terminal hole 332, these terminal holes 332 are through terminal base 33 upper and lower surfaces, respectively be provided with a pair of T type groove 334 again in the front and back end of conduction region 331, the outside of this front and back end groove 334 also respectively is provided with a pair of suitable flexible hook 335 that is, the hanging support face 336 of these hooks 335 and projection 333 surfaces common activity space h (seeing also the 4b diagram) that forms in conduction region 331; Also respectively being provided with a pair of being used for again is mounted to semicircle projection 337 on the frame assembly 40 in the left and right sides of terminal base 33 outer rims with terminal base assembly 30; This elastic parts 32 is mounted in the groove 334 of terminal base 33, which is provided with a support division 321, from the upwardly extending location division 322 of support division 321 bending and the resiliency supported portion 323 of extension before support division 321 is oblique; This over cap 31 is positioned in the activity space h of terminal base 33 conduction regions 331; it in the middle of it accepting area 311 that is used to accept chip module 10; this accepting area 311 be provided with terminal base 33 on through hole 312 and some second projections 313 of terminal hole 332 numbers such as grade; these second projections 313 are distributed in and are used for 10 heat radiations of supporting chip module between each adjacent two through hole 312; front and back in accepting area 311 also respectively are provided with pair of semicircular shaped fool proof post 314; respectively be provided with a pair of concave station 315 in the edge, front and back of this over cap 31 in addition; these concave stations 315 hold cooperation mutually with hook 335 on the terminal base 33, make over cap 31 rely on the resiliency supported of elastic parts 32 up and down in activity space h.

See also shown in Figure 3, the depression bar member 42 that this frame assembly 40 includes a framework 43, a gland 41 and framework 43 is articulated in gland 41.Wherein, gland 41 is the square plate columnar structure of a hollow, and it comprises the side plate 412 that the relative two side direction terminal bases of a main board 411 and autonomous agent plate 511 extend; Wherein be formed with the press section 413 of omiting to the bending of terminal base 20 directions in main board 411 middle parts, so that pushing chip module 10 contacts with conducting terminal 20, front interval in main board 411 also is provided with first sleeve 414 that a pair of left-right symmetric is used to articulate depression bar member 42 hollows again, and the rear end also is provided with a pair of tongue 415; This side plate 412 is to design for strengthening main board 411 structures.

The depression bar 421 that this depression bar member 42 is formed through bending by Metallic rod is injected edge with plastics again and is buried moulding (Insert molding) and form, it comprises depression bar 421 and brake component 422, and this depression bar 421 comprises further that again a rotatable framework 43 that is mounted to holds two location divisions 4211 in the space, is in the force section 4212 of 4211 of two location divisions and is connected in the operating portion 4213 of location division 4,211 one ends; And brake component 422 is fixed in the centre of depression bar 421 force sections 4212, is used for interlock gland 41 to open automatically with closed with depression bar member 42.

This framework 43 has a diapire 431, the middle position of this diapire 431 is provided with a central opening 432 and packs into for terminal base assembly 30, first projection, 337 corresponding positions in central opening 432 sides and terminal base 33 are provided with the semicircle breach 433 that is used for fixing terminal base 33, and the bending extension that makes progress around diapire 431 is provided with sidewall 434, these sidewalls 434 and above-mentioned diapire 431 surround the space with host side stroma assembly 30 jointly, and the both sides of this antetheca 433 bend inwards to extend near adjacent two side and respectively are provided with one second sleeve 435; In addition, the centre of its rear wall is provided with a pair of bayonet socket 436 that is used to hold gland 41 tongues 415, and the rear end of sidewall 434 is provided with the outside curved shape of bending be used to a to lock grab 437 of depression bar 421.

See also shown in Fig. 4 a, 4b, 5a and the 5b, it is schematic diagram before and after an over cap 31 actions, when chip module 10 is installed on the over cap 31, pulling depression bar member 42 drive glands 41 exerts pressure to chip module 10, at this moment, over cap 31 is pressed down by chip module 10 and sinks, and this elastic parts 32 is compressed, and conducting terminal 20 stretches out over cap 31 under the guiding of the guiding face 316 of over cap 31 through hole 312 accurately connects with chip module 10; Otherwise; when desire is taken out chip module 10; promptly upwards pull depression bar member 42 and utilize the brake component 422 on it to drive gland 41 unlatchings; at this moment; over cap 31 is released with the pressure of elastic parts 32, and under the resiliency supported of elastic parts 32, over cap 31 is pushed to chip module the contact site (not indicating) that is higher than conducting terminal 20; be convenient to chip module 10 and take out and the conducting terminal 20 of not damaging, thereby make conducting terminal 20 shrink in the through hole 312 of over cap 31.

Utility model of the present utility model focuses on: establish an over cap 31 on terminal base 33; and utilization is positioned 32 pairs of over cap 31 resiliency supported of elastic parts on the terminal base 33; thereby, prevent the effect that it deforms or ruptures to reach protection conducting terminal 20.

Be familiar with enforcement utility model purpose and the effect that this operator understands the utility model spirit strictly according to the facts for making, for embodiment and accompanying drawing only be that the utility model is illustrated, not to the utility model any restriction in addition, the utility model still can have other variation execution mode, so allly be familiar with this operator and carry out other pattern under this case utility model spirit and implement not breaking away from, the equivalence that all should be considered as this case claim is implemented.

Claims

1. Zero plug-in force socket structure, this socket includes a terminal base assembly (30), plurality of conductive terminals (20) and a frame assembly (40); It is characterized in that: terminal base assembly (30) further comprises an over cap (31), plurality of elastic assembly (32) and a terminal base (33) again, is provided with terminal hole (332) of accommodating plurality of conductive terminals (20) and the groove (334) that is used for ccontaining elastic parts (32) in the conduction region (331) in the middle of this terminal base; Also be provided with some hooks (335) in the conduction region (331) of this terminal base (33), the hanging support face (336) of these hooks (335) and first projection (333) surface common activity space h that forms in conduction region (331); This over cap (31) relies on the support of positioning component (32) and is positioned in the activity space h of terminal base (33) conduction region (331), and over cap (31) relies on the resiliency supported of elastic parts (32) up and down in activity space h.

2. a kind of Zero plug-in force socket structure as claimed in claim 1 is characterized in that: also be provided with first projection (333) that is distributed between the terminal hole (332) in the conduction region (331) of this terminal base (33).

3. a kind of Zero plug-in force socket structure as claimed in claim 1 is characterized in that: this elastic parts (32) further is provided with support division (321), location division (322) and support portion (323) again.

4. a kind of Zero plug-in force socket structure as claimed in claim 1; it is characterized in that: the centre of this over cap (31) is for being used to accept the accepting area (311) of chip module (10), this accepting area (311) be provided with terminal base (33) on through hole (312) and some second projections (313) of terminal hole numbers such as (332).

5. a kind of Zero plug-in force socket structure as claimed in claim 1 is characterized in that: this over cap (31) also is provided with and the hook (335) of terminal base (33) concave station of hanging support (315) mutually.

6. a kind of Zero plug-in force socket structure as claimed in claim 1 is characterized in that: also be provided with fool proof post (314) in the accepting area (311) of this over cap (31).