CN2710195Y

CN2710195Y - Socket connector terminal

Info

Publication number: CN2710195Y
Application number: CNU2004200509070U
Authority: CN
Inventors: 殷豪
Original assignee: Molex Interconnect Shanghai Co Ltd; Molex LLC
Current assignee: Molex Interconnect Shanghai Co Ltd; Molex LLC
Priority date: 2004-05-10
Filing date: 2004-05-10
Publication date: 2005-07-13
Anticipated expiration: 2014-05-10
Also published as: WO2005112532A1; TWM264699U

Abstract

The utility model discloses a socket connector terminal, it contains a body and bends two arms that extend from this body relative both sides. The body is provided with a base part connected with the two arm parts and a welding part vertically extending from one end of the base part to the same side of the two arm parts. Each arm part is provided with a rear arm part bent and extended from the body, a front arm part bent and slightly expanded and extended from the rear arm part, and a palm part bent and extended from the front arm part. The palm part also comprises a guide part connected with the front arm part and a clamping part capable of clamping the chip plug pins. The free end face of the clamping part is approximately positioned in the same plane with the body, so that the guide space is enlarged, and the damage to the terminal or the chip plug pin is reduced when the chip plug pin is inserted into the terminal. Meanwhile, the whole palm part is a smooth curve, so that the friction between the chip pin and the terminal in the sliding process is reduced.

Description

The socket connector terminal

Technical field

The utility model is about a kind of socket connector terminal, especially about a kind of terminal of socket connector of zero insertion force structure.

Background technology

Along with the consideration of development of electronic technology and human oriented design, the socket of zero insertion force structure just is being widely used in being connected between various chips (as, the cpu chip that uses in the computer) and the circuit board.It is simple to operation, can satisfy the demand that the user repeats to plug.Simultaneously, because need not, can guarantee that also the chip internal precision circuit is without prejudice to the chip application of force.

Yet because fit tolerance, often between the socket connector terminal of existing zero insertion force structure and the inserting foot of chip skew takes place and can not accurately aim at, with the terminal conflict, cause terminal scratch even distortion when causing the chip inserted pin to insert.On the other hand, even the chip inserted pin that inserts according to the normal position does not insert reluctantly, can have also that to slide onto in the process of precalculated position between terminal and inserting foot frictional dissipation excessive and cause contacting problem of unstable, and then influence the performance that is electrically connected between chip and circuit board.

For addressing the above problem, Chinese patent discloses a kind of socket connector terminal No. 01226353.As shown in Figure 1, this socket connector terminal 1 includes a matrix 10 and a pair of arm 20.Head 12 in the terminal containing slot that this matrix 10 comprises the body 11 that abuts against the accepting groove inwall in the terminal containing slot that is housed in connector, be retained on socket connector, and can be welded on weld part 13 on the printed circuit board (PCB).Arm 20 extends from the relative side of body 11, and it includes the forearm 21 of relative extension setting and the metacarpus 23 of stretching and expanding outwardly to body 11 directions edge from contact site 22.Be formed with one first space 210 between this two forearm 21, and be formed with a slit 220 in first space 210 and between two contact sites 22.One second space 230 is formed between the above-mentioned metacarpus 23 and at slit 220 places and communicates with first space 210, and above-mentioned slit 220 all is wider than in first space 210 and second space 230.CPU (chip) inserting foot be able to be interposed between the above-mentioned contact site 22, with being electrically connected of realization and terminal 1.

This socket connector terminal 1 is located at the contact site of clamping chip inserted pin between its metacarpus 23 and the forearm 21, but not the free end of metacarpus 23, in order to have strengthened chucking power to the chip inserted pin.The metacarpus 23 of terminal 1 is the splayed structure simultaneously, and with the transition of termination contact portion 22 smooth connection partly, can make 22 the smooth surface slippage of CPU inserting foot, avoid scratching because of 1 of CPU inserting foot and terminal contact the excessive contact-making surface that causes of resistance along metacarpus 23 to contact site.

Yet this socket connector terminal has only solved the wear problem that slides onto after inserting foot inserts in the prior art in the process of precalculated position, does not propose basic effectively solution to cause the impaired problem of terminal because of the skew of inserting foot insertion position.Because its guide space is less, still easily produces when the CPU inserting foot inserts and stride the pin phenomenon.Therefore be necessary the terminal of existing socket connector is done further to improve, to overcome above-mentioned shortcoming.

Summary of the invention

The purpose of this utility model is to provide a kind of socket connector terminal, and it can avoid accurately not aiming at the damage that causes because of between chip inserted pin and terminal, also can reduce inserting foot and slide onto in the process of precalculated position friction with terminal; Guarantee stable being electrically connected between chip inserted pin and terminal simultaneously.

For achieving the above object, socket connector terminal of the present utility model adopts following technical scheme: it comprises a body, and bends two arms that extend from the relative both sides of body approximate vertical.This body comprises a base portion and reaches from the weld part of base portion away from the end extension of arm.

Each arm has a back arm that extends from the body approximate vertical, one from this back arm along away from the bending of body direction and expand outwardly the forethiga of extension, and one from this forethiga bending and with the metacarpus of back arm homonymy extension.But this metacarpus comprises the clamping part that a guide portion that is connected with forethiga and is positioned at free end clamping chip inserted pin again.The free terminal end face and the described body of this clamping part roughly are positioned at same plane, thereby form a roomy guide space between two forearms and two guide portion.Form a narrow grasping part between two clamping parts and postbrachium.This guide space is communicated with from being splayed perpendicular to the observation of metacarpus direction with grasping part.

For terminal better is immobilizated in the terminal containing slot, can establish some protuberances on the terminal body, closely contact and produce interference with accommodating cell wall and circuit board respectively, with raising piece electrical connection stability.

When the chip inserted pin inserts connector, at first enter roomy guide space and under the driving of driven unit, move into grasping part then, thereby and reach fastening purpose for the clamping part clamping by guide space.

Compare with the socket connector terminal that adopts prior art, the beneficial effect of the utility model socket connector terminal is: guide space increases, and survivable terminal of the chip inserted pin insertion end period of the day from 11 p.m. to 1 a.m or inserting foot are electrically connected stable; And terminal is difficult for being exposed to outside the terminal containing slot, product yield height.

Description of drawings

Fig. 1 is the stereogram of an existing socket connector terminal;

Fig. 2 is the stereogram of first embodiment of the utility model socket connector terminal;

Fig. 3 is the stereogram of socket connector terminal accommodating shown in Figure 2 when a terminal containing slot;

Fig. 4 is the end view of socket connector terminal shown in Figure 2;

Fig. 5 is the stereogram of another embodiment of the utility model socket connector terminal.

The number in the figure explanation:

1 socket connector terminal	10 matrixes
1 socket connector terminal	10 matrixes	11 bodies	12 heads
13 weld parts		11 bodies	12 heads
13 weld parts		20 arms
21 forearms	210 first spaces	20 arms
21 forearms	210 first spaces	22 contact sites	220 slits
23 metacarpus	230 second spaces	22 contact sites	220 slits
23 metacarpus	230 second spaces	3 socket connector terminals	30 bodies
31 base portions	310 protuberances	3 socket connector terminals	30 bodies
31 base portions	310 protuberances	32 weld parts
40 arms	41 postbrachiums	32 weld parts
40 arms	41 postbrachiums	42 forearms	43 metacarpus
430 guide portion	431 clamping parts	42 forearms	43 metacarpus
430 guide portion	431 clamping parts	432 end faces
44 guide spaces	45 grasping parts	432 end faces
44 guide spaces	45 grasping parts	5 socket connector terminals	50 bodies
510 protuberances		5 socket connector terminals	50 bodies
510 protuberances		60 arms

7 terminal containing slots

70 holding sections

Embodiment

Now in conjunction with the accompanying drawings, the preferred embodiment to the utility model socket connector terminal is described in detail as follows:

Shown in Fig. 2,3, two arms 40 that socket connector terminal 3 of the present utility model has a body 30 and extends from these body 30 relative both sides approximate vertical bendings, this socket connector terminal 3 can be contained in the corresponding terminal containing slot 7.

Please in the lump with reference to figure 2 and Fig. 4, this body 30 has a sheet base portion 31 that links to each other with two arms 40, and is positioned at the weld part 32 that body 30 homonymies extend from the vertical bending of these base portion 31 1 ends and with two arms 40.There is a protuberance 310 base portion 31 both sides near each horizontal-extending of weld part 32 ends.32 of weld parts are used to be soldered to the relevant position on the circuit board (not icon), to set up being electrically connected between terminal 3 and the circuit board.

Each arm 40 has a back arm 41 from body 30 approximate vertical bending extension, one from this back arm 41 along away from the bending of body direction and slightly expand outwardly the forethiga 42 of extension, an and metacarpus 43 that extends from these forethiga 42 bendings and with back arm 41 homonymies and almost parallel.This metacarpus 43 have a guide portion 430 that is connected with forethiga 42 and one with this guide portion 430 smooth clamping parts 431 that are connected and inwardly shrink, the free terminal end face 432 of this clamping part 431 and body 30 are roughly at grade.

As shown in Figure 3, because of two forearms 42 expand outwardly extension, thereby and 430 of two guide portion form a roomy guide space 44; 431 of two clamping parts then form a narrow grasping part 45 because of shrinking.The shape of this metacarpus 43 makes two spaces be splayed and be communicated with from observing perpendicular to metacarpus 43 directions (promptly with Fig. 4 in A-A ' rightabout).

For avoiding terminal weld part 32 to influence welding with terminal accommodating cell wall 7 frictional impacts are impaired during insertion, when terminal 3 is packed the respective terminal accepting groove 7 of connector into, adopt the mode of inserting two arms 40 earlier, promptly insert along A-A ' direction among Fig. 4.As Fig. 3, two relative cell walls of these terminal containing slot 7 grooves have respectively protruded out a holding section 70.After terminal 3 was packed terminal containing slot 7 into, base portion 31 closely contacted with terminal containing slot 7 walls, and the protuberance 310 of its both sides just can be stopped by holding section 70 and can not produce inclination.

When the chip inserted pin inserts in the connector, it at first enters the guide space 44 of terminal 3, move into grasping parts 45 at the smooth surface of the driving lower edge of driven unit (not shown) metacarpus 43 by guide space 44 then, thereby and reach the purpose that is electrically connected for clamping part 431 clampings.

For strengthening the fixing to whole terminal, the body of the utility model socket connector terminal also can increase other interference part as required.Figure 5 shows that another embodiment of the utility model socket connector terminal 5, it is provided with another to protuberance 510 at body 50 near arm 60 ends, and it can utilize interferes and the location of reinforcement terminal 5 in terminal containing slot.

The forethiga of socket connector terminal of the present utility model expands outwardly, and clamping part free terminal end face and terminal body are close at grade, thereby between forearm and guide portion, can form big as far as possible guide space, avoid the terminal damage that on business poor reason causes in chip inserted pin insertion process.This structure also makes terminal be difficult for being exposed to outside the terminal containing slot, has improved the product yield.In addition, smooth connection between the clamping part of terminal metacarpus and guide portion, reduced chip inserted pin bootstrap space significantly and moved in the process of precalculated position friction with terminal.

Technology contents of the present utility model and technical characterstic disclose as above, yet those of ordinary skill in the art still may be based on teaching of the present utility model and announcements and done all replacement and modifications that does not deviate from the utility model spirit.Therefore, protection range of the present utility model should be not limited to the content that embodiment discloses, and should comprise various do not deviate from replacement of the present utility model and modifications, and is contained by the present patent application claim.

Claims

1. socket connector terminal, two arms that it has a body and extends from the relative both sides of this body approximate vertical, this body comprises a base portion and a weld part; It is characterized in that described each arm has a forethiga that expansion is extended outside body, reach one from the metacarpus of this forethiga to base side bending extension; This metacarpus comprises the guide portion and the bootstrap portion that are connected with forethiga again and shrinks the clamping part that extends.

2. socket connector terminal as claimed in claim 1 is characterized in that between described two forethigas and two guide portion one guide space being arranged, and a grasping part is arranged between two clamping parts, and described guide space is wide than grasping part.

3. socket connector terminal as claimed in claim 2 is characterized in that this two space is similar splayed connection from observing perpendicular to the metacarpus direction.

4. socket connector terminal as claimed in claim 1 is characterized in that described weld part from the base portion vertical extent, and is positioned at the body homonymy with described two arms.

5. socket connector terminal as claimed in claim 1 is characterized in that described base portion is provided with some protuberances.

6. socket connector terminal as claimed in claim 5 is characterized in that described protuberance is positioned at base portion near weld part end both sides.

7. socket connector terminal as claimed in claim 5 is characterized in that described protuberance is positioned at the both sides of base portion away from weld part one end.