TWM438721U - Electrical connector and terminals thereof - Google Patents

Abstract

An electrical connector for electrically connecting an electronic package to a circuit substrate, comprises an insulative housing and a plurality of contacts received in the insulative housing. The contact comprises an upper contact, a lower contact and a spring located between the upper contact and the lower contact. The upper contact has an open slot available for the lower contact moving from top to bottom.

Description

M438721 V. New Description: [Technical Field of New Eyebrow] [0001] The present invention relates to an electrical connector and a conductive terminal thereof, and more particularly to an electrical connector capable of electrically connecting a chip module to a printed circuit board and its conductive Terminal. [Prior Art] [0002] An electrical connector related to the present invention is disclosed in the Republic of China Patent Publication No. M393066. The electrical connector includes an insulative housing and a plurality of electrically conductive terminals mounted to the bead body. The insulative housing includes upper and lower plates that are butted together, and a plurality of terminal slots extending through the upper and lower plates. The conductive terminal is received in the terminal slot and includes an upper terminal, a terminal electrically connected to the upper terminal, and an elastic member between the upper terminal and the lower terminal. The upper end portion is disposed above the elastic member to press against the pressing portion of the elastic member and extend from one end of the upper pressing portion to form an upper guiding portion. A protruding portion is formed in the terminal slot, and the protruding portion is disposed on the lower plate and below the upper pressing portion. After the upper terminal is pressed, the upper pressing portion abuts against the protruding portion. Upper pressing portion • The movable body is accommodated in the upper receiving cavity, and the maximum displacement of the movement in the terminal slot is the depth of the receiving cavity, which is smaller than the maximum elastic deformation amount of the elastic member. [0003] However, the maximum displacement of the pressing portion of the electrical connector in the terminal slot is much smaller than the height of the upper terminal, which is disadvantageous for the development trend of thinning the electrical connector. [〇_#here] It is indeed necessary to provide an improved electrical connector to overcome the drawbacks of the aforementioned electrical connectors. 1012〇332单单号A0101 Page 3 of 221012010546-0 M438721 [New content] [0005] The technical problem solved by the present invention is to provide an electrical connector and its conductive terminal, which can save the height direction Space. [0006] In order to achieve the foregoing object, the present invention adopts the following technical solution: an electrical connector for electrically connecting a wafer module provided with a solder ball to a printed circuit board, which comprises an insulating body and a receiving body provided with a plurality of receiving slots The conductive terminal is disposed in the receiving slot of the insulative housing; the receiving slot includes a first receiving slot and a second receiving slot communicating with the first receiving slot; the conductive terminal includes an upper terminal, a lower terminal, and the upper terminal and the lower terminal The elastic member, the lower end _ can be slid to the top end of the upper terminal and is in contact with the solder ball. In order to achieve the foregoing object, the present invention may also adopt the following technical solution: an electrical connector for electrically connecting a chip module to a printed circuit board, comprising an insulating body provided with a plurality of receiving slots and being received in the insulating body The conductive terminal comprises: an upper terminal, a lower terminal and an elastic member between the upper terminal and the lower terminal, wherein the upper terminal is provided with a slot extending from top to bottom, the slot can be The lower terminal is moved up and down.

[0008] In order to achieve the foregoing object, the present invention may also adopt the following technical solution: a conductive terminal of an I electrical connector for electrically connecting a wafer module provided with a solder ball to a printed circuit board, including an upper terminal and a lower The terminal and the elastic member between the upper terminal and the lower terminal; the upper terminal is provided with a slot extending from the top to the bottom, and the slot is configured for the lower terminal to move up and down. [0009] Compared with the prior art, the terminal on the present electrical connector has a slot extending from top to bottom, so that when the upper terminal and the lower terminal are engaged, the lower terminal can slide along the slot to the top of the upper terminal. And make four-point contact with the solder ball 〇10120332#单号A〇101 $ 4 pages / Total 22 pages 1012010546-0 M438721 [Embodiment] Please refer to the first to seventh figures, this creation The electrical connector 100 is used for electrically connecting a wafer module (not shown) provided with a solder ball 3 to a printed circuit board (not shown), and includes an insulating body 1 and a plurality of conductive terminals 2 housed in the insulating body 绝缘The main body 1 is provided with a plurality of receiving slots for receiving the conductive terminals 2, and the receiving slot includes a first receiving slot 11 and a first receiving slot 12 communicating with the first receiving slot. The conductive terminal 2 includes an upper terminal 21, a lower terminal 23, and an elastic member 22 disposed between the upper terminal 21 and the lower terminal 23. [0011] Referring to the fourth figure, the insulative housing i includes an upper surface 13 and a lower surface 14 opposite the upper surface 13. The first receiving slot 11 is disposed near the upper surface 13 and the second receiving slot 12 is disposed near the lower surface 14. The cross-sectional area of the first receiving slot 11 is smaller than the cross-sectional area of the second receiving slot 12, and the first receiving valley The slot 11 communicates with the second receiving slot 12 and a blocking surface 15 is formed between the first receiving slot and the second receiving slot 12 . [0012] Referring to the first and third figures, the upper terminal 21 includes a flat base portion 210 and a shoulder portion 215 protruding from the opposite sides (in the χ direction) from the upper end of the base portion 210. . A first contact portion 212 electrically connected to a wafer module (not shown) is formed at the top end of the base portion 210, and the shoulder portion 215 is connected to the first contact portion 212. The base portion 21 is disposed in a stepped manner with the shoulder portion 21 5 . The width of the shoulder portion 215 is greater than the width of the base portion 21 and the thickness of the base portion 21 is the same as the thickness of the shoulder portion 215. That is, the upper terminal 21 is in the X direction, the width of the shoulder portion 215 is greater than the width of the base portion 210, and the upper terminal 21 is at γ. In the direction, the shoulder 215 is the same thickness as the base 210. The upper terminal 21 is provided with an inwardly recessed slot 2丨3 at a position between the opposite sides (in the Y direction) f of the base portion 21, and the slot 213 is formed through the top and bottom, and the slot 2丨3 At the base portion 21, 10120332#single number A0101, page 5/22 pages, 1012010546-0, M438721 is provided with a symmetrically disposed projection 214 extending outward in the Y direction at the lower end and near the lower terminal 23. [0013] The lower terminal 23 includes a main body portion 230 and a pair of clamping arms 231 extending upward from the main body portion 230. The top end of each of the gripping arms 231 forms a hook portion 233 that extends toward each other. A second contact portion 235 electrically connected to a printed circuit board (not shown) is formed at the bottom end of the main body portion 230. The main body portion 230 is provided with a pair of blocking portions 234 extending in the horizontal direction (in the Υ direction) from both sides of the gripping arm 231. The two clamping arms 231 are spaced apart to form a channel 232 for receiving the upper terminal 21 therebetween. [0014] The elastic member 22 includes an upper end portion 221, a lower end portion 223, and an intermediate portion 222 between the upper end portion 221 and the lower end portion 223. The cross-sectional area of the intermediate portion 222 is larger than the cross-sectional area of the upper end portion 221 and the lower end portion 223. The top end of the upper end portion 221 is resisted by the shoulder portion 215 of the upper terminal 21 to prevent the elastic member 22 from being detached from the upper terminal 21, and the bottom end of the lower end portion 223 is resisted by the blocking portion 234 of the lower terminal 23 to prevent the elastic member 22 from being detached from the lower terminal 23. . [0015] Please refer to the fourth to seventh figures at the same time, after the assembled electrical connector 100 is completed, the conductive terminal 2 is in an initial state, and at this time, the hook portion 233 of the lower terminal 23 and the upper terminal 21 are convex. The outlet portion 214 is latched to prevent the upper terminal 21 from being separated from the lower terminal 23. The first contact portion 21 2 exposes the upper surface 13 of the insulative housing 1 to make two-point contact with the solder ball 3, and the second contact portion 235 exposes the lower surface 14 of the insulative housing 1 to be electrically connected to a printed circuit board (not shown). The elastic member 22 is located between the upper terminal 21 and the lower terminal 23. The shoulder portion 215 and the blocking portion 234 block the elastic member 22 from the top end and the bottom end of the elastic member 22, thereby preventing the elastic member 22 from the top end and the lower terminal of the upper terminal 21. The bottom end of 23 is detached. The upper end portion 221 of the elastic member 22 and the shoulder portion 215 of the upper terminal 21 are received in the first receiving groove 11 and 10120332^^^^ A〇101 ^ 6 1 / # 22 I 1012010546-0 M438721 can be in the first receiving slot 11 Move up and down. The intermediate portion 222 of the elastic member 22 is valleyd in the first valley receiving slot 12 and can move up and down in the second receiving slot 12, and the intermediate portion 222 of the elastic member 22 is blocked by the blocking surface 15 and restrained in the second receiving slot 12 To prevent the conductive terminal 2 from being detached from the upper surface 13 of the insulating body. [0016] Please refer to the sixth and seventh figures. When the terminal module 21 is pressed down by the wafer module (not shown), the upper terminal 21 will move downward along the channel 232 and compress the elastic member 22, The lower terminal 23 also moves upward along the slot 21 3 . With the pressure under the wafer module (not shown), the upper terminal 21 slides to the bottom end of the channel 232 and the lower terminal 23 slides to the top end of the slot 213. At this time, the clamping portion 236 of the lower terminal 23 In contact with the solder ball 3, the conductive terminal 2 makes two-point contact with the solder ball 3 through the first contact portion 212 of the terminal 21, and the clamping portion 236 of the terminal 23 makes another two-point contact with the solder ball 3, that is, The conductive terminal 2 makes four-point contact with the solder ball 3. During this process, the base portion 21 is moved downward along the clamp arm 231 and is in close contact with the hook portion 233 to achieve good electrical compatibility between the wafer module (not shown) and the printed circuit board (not shown). connection. When the wafer module (not shown) is removed, the upper terminal 21 is moved upward by the reaction force of the elastic member 22 to the initial state. At this time, the hook portion 233 of the lower terminal 23 is interlocked with the protruding portion 214 of the upper terminal 21. hold. [0024] The key structure of the present invention is that the upper terminal 21 has a slot 213 extending from top to bottom. When the upper terminal 21 and the lower terminal 23 are engaged, the lower terminal 23 can follow the slot 213. Straight sliding to the top end of the upper terminal 21 (in the Z direction), that is, the clamping portion 236 of the first contact portion 212 and the lower terminal 23 of the upper terminal 21 can make four-point contact with the solder ball 3; The portion 215 is protruded from the base portion 210 and directly connected to the first contact portion 212 to form a step 10120332. The singularity & A 〇 101 page 7 / total 22 page 1012010 546 - 0 is disposed to prevent the elastic member 22 from the upper terminal 21 The detachment can also reduce the overall height of the conductive terminal 2, thereby saving the space required for the electrical connector 1 in the height direction. [〇〇18ί In summary, this creation complies with the new patent requirements and proposes a patent application according to law. However, the above description is only a preferred embodiment of the present invention, and the scope of the present invention is not limited to the foregoing embodiments, and equivalent modifications or changes made by those skilled in the art in accordance with the spirit of the present invention should be It is covered by the following patent application. [Brief Description] [QQ19] The first figure is a three-dimensional combination diagram of the original electrical connector; [0020] The second figure is an exploded view of the original electrical connector; [0021] The third figure is the original creation The three-dimensional decomposition of the conductive terminals of the connector and the solder ball fg| ♦ circle, [0022] The fourth figure is a cross-sectional view of the present electrical connector and the solder ball along the IV-IV direction in the first figure; [0023] A cross-sectional view of the present electrical connector and the solder ball along the ν-V direction in the first figure; [0024] The sixth figure is a cross-sectional view of the present invention in which the electrical connector and the solder ball are compressed to a limit state in the VV direction of the first figure; [0025] The seventh figure is a schematic diagram of the four-point contact between the conductive terminals of the present electrical connector and the solder ball. [Description of main component symbols] [0026] Electrical connector: 1〇〇1012010546-0 10120332#单号A〇101 Page 8 of 22 M438721 [0027] Insulating body: 1 [0028] First receiving slot: 11 [0029] Second receiving groove: 12 [0030] Upper surface: 13 [0031] Lower surface: 14 [0032] Blocking surface: 15 [0033] Conductive terminal: 2 • [0034] Upper terminal: 21 [0035] Base : 210 - [0036] First contact: 212 [0037] Slot: 21 3 [0038] Projection: 214 [0039] Shoulder: 21 5 • [0040] Elastic: 22 [0041] Upper end: 221 [0042] Intermediate part: 222 [0043] Lower end: 223 [0044] Lower terminal: 23 [0045] Main body: 230 [0046] Clamping arm: 231 10120332#·^^^* A0101 Page 9 / Total 22 pages 1012010546-0 M438721 [0047] Channel: 232 [0048] Hook: 233 [0049] Barrier: 234 [0050] Second contact: 235 [0051] Clamp: 236 [0052] Tin ball: 3

10120332^^^^* A〇101 Page 10 of 22 1012010546-0

Claims (1)

M438721, the scope of the patent application: 1. An electrical connector for electrically connecting a wafer module having a solder ball to a printed circuit board, comprising: an insulative housing having a plurality of receiving slots, the receiving slot comprising a receiving slot and a second receiving slot communicating with the first receiving slot; and a conductive terminal received in the receiving slot of the insulative housing, including an upper terminal, a lower terminal, and an elastic member between the upper terminal and the lower terminal; Wherein, the lower terminal is slidable to the top end of the upper terminal and is in contact with the solder ball. 2. The electrical connector of claim 1, wherein the upper terminal comprises a flat base and a shoulder projecting outwardly from opposite sides of one of the upper ends of the base. 3. The electrical connector of claim 2, wherein the base and the shoulder are stepped, the shoulder abutting the top end of the elastic member. 4. The electrical connector of claim 3, wherein the shoulder has a width greater than a width of the base. 5. The electrical connector of claim 2, wherein the base has a thickness equal to the thickness of the shoulder. 6. The electrical connector of claim 2, wherein the upper terminal is provided with an inwardly recessed slot at an intermediate position on the other opposite sides of the base. 7. The electrical connector of claim 6, wherein the slot is convexly disposed adjacent the lower terminal with a symmetrically disposed projection. 8. The electrical connector of claim 1, wherein the lower terminal comprises a main body portion, one of the pair of clamping arms extending upward from the main body portion, and the upper terminal formed between the clamping arms Channel. 9. The electrical connector of claim 8, wherein the top end of the upper terminal is provided with a first contact portion, and the top end of the clamping arm is provided with a clamping portion, 1 () 12{) 332f Single No. A0101 Page 11 of 22 1012010546-0 M438721 The clamping portion and the first contact portion form a four-point contact with the solder ball. 10. The electrical connector of claim 9, wherein the upper end of the clamping arm defines a hook portion extending toward each other, the hook portion being movable up and down within the upper terminal. The electrical connector of claim 8, wherein the lower terminal extends from the two sides of the clamping arm in a horizontal direction to provide a pair of blocking portions, wherein the blocking portion can abut the elastic member Bottom end. 12. The electrical connector of claim 1, wherein the first receiving groove has a cross-sectional area that is smaller than a cross-sectional area of the second receiving groove. The electrical connector of claim 12, wherein the elastic member comprises an upper end portion, a lower end portion, and an intermediate portion 14 between the upper end portion and the lower end portion, as described in claim 13 The electrical connector, wherein a cross-sectional area of the intermediate portion of the elastic member is greater than a cross-sectional area of the upper end portion and the lower end portion. The electrical connector of claim 14, wherein a blocking surface is formed between the first receiving groove and the second receiving groove of the receiving groove, the blocking surface restraining the middle portion of the elastic member In the second receiving slot. An electrical connector for electrically connecting a chip module to a printed circuit board, comprising: an insulative housing having a plurality of receiving slots; and a conductive terminal received in the receiving slot of the insulative housing, including The upper terminal, the lower terminal and the elastic member between the upper terminal and the lower terminal, wherein the upper terminal is provided with a slot extending from top to bottom, and the slot is configured for the lower terminal to move up and down. 17. The electrical connector of claim 16, wherein the slot is disposed intermediate the opposite sides of one of the upper terminals. The electrical connector of claim 17, wherein the slot is convexly disposed near the lower terminal and is symmetrically disposed. Protrusion. 19. The electrical connector of claim 16, wherein the upper terminal comprises a flat base and a shoulder projecting outwardly from the other opposite sides of the upper end of the base. The electrical connector of claim 19, wherein the base and the shoulder are stepped, the shoulder abutting the top end of the elastic member. The electrical connector of claim 20, wherein the base has a width greater than a width of the shoulder. The electrical connector of claim 21, wherein the base has a thickness equal to the thickness of the shoulder. The electrical connector of claim 16, wherein the lower terminal comprises a main body portion, one of the pair of clamping arms extending upward from the main body portion, and a slot for receiving the upper terminal between the clamping arms Road. The electrical connector of claim 23, wherein the upper end of the clamping arm forms a hook portion extending toward each other, the hook portion moving up and down within the slot of the upper terminal. The electrical connector of claim 24, wherein the top end of the clamping arm is provided with a clamping portion, the hook portion can be slid to the top end of the upper terminal and the clamping portion can be slid out groove. The electrical connector of claim 23, wherein the lower terminal extends from the two sides of the clamping arm in a horizontal direction to provide a pair of blocking portions, the blocking portion abutting against the bottom of the elastic member end. The electrical connector of claim 16, wherein the receiving slot comprises a first receiving slot and a second receiving slot communicating with the first receiving slot, the cross-sectional area of the first receiving slot is smaller than The cross-sectional area of the two receiving slots. The electrical connector of claim 27, wherein the elastic member includes an upper end portion, a lower end portion, and an upper end portion, and a plurality of the same. The intermediate connector between the lower end portions. The electrical connector of claim 28, wherein the intermediate portion of the elastic member has a cross-sectional area greater than a cross-sectional area of the upper end portion and the lower end portion. The electrical connector of claim 29, wherein a blocking surface is formed between the first receiving groove and the second receiving groove of the receiving groove, the blocking surface restraining the middle portion of the elastic member In the second receiving slot. 31. The conductive terminal of the electrical connector, for electrically connecting the chip module to the printed circuit board, comprising: an upper terminal; a lower terminal; and an elastic member located between the upper terminal and the lower terminal, the upper terminal includes a shoulder abutting the upper end of the elastic member and a slot extending from the top to the bottom, the slot being movable for the lower terminal to move up and down. The conductive terminal of the electrical connector of claim 31, wherein the slot is provided at an intermediate position on opposite sides of one of the upper terminals. The conductive terminal of the electrical connector of claim 32, wherein the slot is convexly disposed adjacent to the lower terminal and provided with a symmetrically disposed projection. The conductive terminal of the electrical connector of claim 31, wherein the upper terminal comprises a flat base portion and a shoulder portion projecting outwardly from the other opposite sides of the upper end of the base portion. The conductive terminal of the electrical connector of claim 34, wherein the base and the shoulder are stepped, the shoulder abutting the top end of the elastic member. 36. The conductive terminal of the electrical connector of claim 35, wherein 10120332# single number A〇101 page 14 of 22 1012010546-0 M438721 the width of the base is greater than the width of the shoulder. The conductive terminal of the electrical connector of claim 35, wherein the thickness of the base is the same as the thickness of the shoulder. 38. The conductive terminal of the electrical connector of claim 31, wherein the lower terminal comprises a body portion extending upwardly from the body portion and forming a storable arm between the clamping arm and the clamping arm The channel of the terminal. 39. The conductive terminal of the electrical connector of claim 38, wherein the upper end of the clamping arm forms a hook portion extending toward each other, the hook portion moving up and down within the slot of the upper terminal. The conductive terminal of the electrical connector of claim 39, wherein the top end of the clamping arm is provided with a clamping portion, the hook portion can be slid to the top end of the upper terminal and the clamping portion can be slidable Remove the slot. The conductive terminal of the electrical connector of claim 38, wherein the lower terminal extends from the two sides of the clamping arm in a horizontal direction to provide a pair of blocking portions, the blocking portion being capable of abutting the elasticity The bottom of the piece. The conductive terminal of the electrical connector of claim 41, wherein the elastic member comprises an upper end portion, a lower end portion, and an intermediate portion between the upper end portion and the lower end portion. The conductive terminal of the electrical connector of claim 42, wherein the intermediate portion of the elastic member has a cross-sectional area greater than a cross-sectional area of the upper end portion and the lower end portion. 10120332#单号 A〇101 Page 15 of 22 1012010546-0