TWI574471B - Electrical connector - Google Patents

Description

Electrical connector

The present invention relates to an electrical connector, and more particularly to an electrical connector for testing a wafer module.

A socket generally used for testing a wafer module, comprising a base, a sliding plate assembled to the base, a driving member and a conductive terminal held on the base, the conductive terminal having a static arm and a moving arm for holding the wafer mold Tin balls set on the group. However, only two arms are clamped, which may result in unstable clamping and poor contact.

Therefore, it is necessary to design a new electrical connector to overcome the above problems.

It is an object of the invention to provide an electrical connector that ensures a good electrical connection.

To achieve the foregoing objective, the technical solution of the present invention is an electrical connector for testing a wafer module, comprising: a base, a first sliding plate fixed to the base and horizontally slidable relative to the base, and the first sliding plate a second sliding plate, the base is fixed with a plurality of rows of conductive terminals, the first sliding plate is provided with terminal slots extending through the upper and lower surfaces thereof; and each of the conductive terminals corresponds to four terminal slots, wherein the conductive terminals comprise a second sliding plate protruding from the contact portion above the second sliding plate, the contact portion for docking with the wafer module, the contact portion comprising a pair of moving arms and a pair of static arms arranged in the left-right direction, the moving arm and the static arm The arm is housed in the terminal slot.

Compared to the prior art, the electrical connector of the present invention has the effect of ensuring a good electrical connection.

100‧‧‧Electrical connector

200‧‧‧ wafer module

10‧‧‧ Pedestal

11‧‧‧Electrical terminals

111‧‧‧ base

110‧‧‧Connecting Department

112‧‧‧Weld Department

113‧‧‧Contacts

114‧‧‧First arm

115‧‧‧second arm

116‧‧‧ moving arm

117‧‧‧ Static arm

118‧‧‧ slot

12‧‧‧Chute

13‧‧‧Fixed holes

14‧‧‧ Keeping holes

15‧‧‧ guiding slot

16‧‧‧ Keep slot

161‧‧‧First sub-slot

162‧‧‧Second sub-slot

163‧‧‧ rib

20‧‧‧First sliding plate

21‧‧‧Sliding arm

22‧‧‧ sector

221‧‧‧ curved surface

23‧‧‧Terminal slot

231‧‧‧First next door

231a‧‧‧first next door

232‧‧‧Second next door

234‧‧‧ first side

235‧‧‧ second side

30‧‧‧Second sliding plate

31‧‧‧Fixed Arm

32‧‧‧ Notch

40‧‧‧ Shell

41‧‧‧Cylinder

42‧‧‧guide arm

43‧‧‧ Drive Department

50‧‧‧Flexible parts

51‧‧‧ Spring

113a‧‧Contacts

116a‧‧‧ moving arm

117a‧‧‧ Static arm

236‧‧‧ next door

30a‧‧‧Second sliding plate

The first drawing is a perspective view of the electrical connector of the present invention; the second drawing is an exploded view of the first drawing; the third drawing is a perspective view of the first and second sliding plates; the fourth drawing is a perspective view of the conductive terminal; 1 is a plan view of the first figure; a seventh view is a partial enlarged view of the sixth figure; the eighth figure is a top view of another embodiment of the present invention; and the ninth figure is the eighth A partial enlarged view of the figure.

Referring to the first to sixth figures, the electrical connector 100 of the present invention is used for testing the wafer module 200, which includes a base 10, a first sliding plate 20 mounted on the base, a second sliding plate 30, and a sleeve. The outer casing 40 of the base.

Referring to the second to fourth figures, the susceptor 10 has a square shape and holds a plurality of conductive terminals 11. The conductive terminal 11 has a base portion 111 held by the base, a welded portion 112 extending downward from the base portion, and an upwardly extending contact portion 113. The soldering portion 112 protrudes downward from the lower surface of the base to be soldered to the printed circuit board and electrically connected.

Two pairs of sliding slots 12 are formed on the front and rear sides of the base 10, and the first sliding plate 20 is provided Two pairs of sliding arms 21 projecting from the lower surface thereof, the length of the chute 12 in the left-right direction is larger than that of the sliding arm 21, so that the sliding arm can slide left and right in the chute 12.

The second sliding plate 30 is located above the first sliding plate 20, and the two pairs of fixing arms 31 disposed on both sides of the sliding plate 30 are fixed in the two pairs of fixing holes 13 provided at corresponding positions of the base. The fixing holes 13 are located on the left and right sides of the base 10. On both sides.

The base portion 10 is further provided with four holding holes 14 near the corners for receiving the elastic member 50. The outer casing 40 has a cylinder 41 that is sleeved on the elastic member 50 and protrudes downward, thereby realizing the up and down movement of the outer casing. The front and rear sides of the outer casing 40 are respectively provided with a pair of guiding arms 42 protruding downward. The base 10 is provided with a guiding groove 15 extending through the front and rear sides thereof, and the guiding arm 42 moves up and down with the outer casing 40 to ensure that the moving direction is not biased. shift. A driving portion 43 is further disposed on the inner side of the guiding arm 42 , and a pair of protruding scallops 22 are disposed on the front and rear sides of the first sliding plate 20 , and the driving portion 43 slides relative to the curved surface 221 of the scallop 22 , and the outer casing 40 is guided by the groove The restriction is only vertical movement, forcing the first sliding member to slide left and right, that is, driving the sliding arm 21 to slide left and right in the sliding slot 12, and the spring 51 is used to provide an elastic restoring force.

The base portion 111 of the conductive terminal 11 is held in the holding groove 16 vertically disposed on the base. The retaining groove 16 includes a first sub-slot 161 and a second sub-slot 162 located below the first sub-slot 161. A plurality of protruding ribs 163 extending up and down are enclosed. The conductive terminal base portion 111 includes a first arm 114, a second arm 115, and a connecting portion 110 that connect the two arms and extend from the soldering portion 112 to form a U-shape. The first arm and the second arm are constrained between the adjacent protruding ribs 163, and the first arm 114 and the second arm 115 located between the protruding ribs are partially contacted by being pressed, thereby forming a new conductive line. Conducive to the transmission of signals.

The contact portion 113 of the conductive terminal 11 is formed by extending from the first arm 114 and the second arm 115, and includes a pair of moving arms 116 and at least one static arm 117. In this embodiment, Two static arms 117 are selected, and the four arms are located approximately at the four corners of the square. A slot 118 is formed between the two moving arms and the two static arms, that is, the first and second arms 114, 115 are split into two parts adjacent to the upper end thereof, and the two movable arms 116 and the two static arms 117 are formed. The first and second arms 116 and 117 are opposite to each other without offset, and the material is more effectively utilized than the offset structure of the prior art, and the force of holding the solder ball is relatively uniform. The first arm 114 and the second arm 115 extend the free ends of the movable arm 116 and the static arm 117 to the upper side of the second slide plate 30 via the first slide plate 20 and the second slide plate 30. The first sliding plate is provided with terminal slots 23 extending through the upper and lower surfaces thereof on the front and rear sides. Each of the conductive terminals 11 corresponds to four terminal slots 23 for receiving the movable arm 116 and the static arm 117. Referring particularly to the fifth to seventh embodiments, the terminal groove 23 is formed by intersecting a plurality of first partition walls 231 extending forward and backward with a second partition wall 232 extending left and right. The first partition walls 231 are parallel to each other, and the second partition walls 232 are also parallel to each other. In the existing terminal groove structure, since the parallel to each other, the injection molding of the mold is relatively easy. The first partition wall 231 defines an opposite first side surface 234 and a second side surface 235. The movable arm 116 abuts against the first side surface 234, and the static arm 117 contacts the second side surface 235, and the adjacent first partition wall 231a A certain distance is spaced to reserve a part of the space when the second sliding plate 30 moves left and right. The slot just receives the second partition 232. The two moving arms 116 and the stationary arms 117 of the same contact portion 113 are respectively symmetrical with respect to the second partition wall 117. The second sliding plate 30 is provided with a notch 32 extending through the upper surface thereof, and together with the top end (ie, the free end) of the movable arm 116 and the static arm 117, surrounds the receiving portion of the wafer module solder ball.

The movable arm 116 is in contact with the first side surface with almost no force therebetween. When the outer casing 40 is pressed to drive the first sliding plate 20 to slide left and right, the convex portion 231 moves to the left to force the moving arm 116 to elastically swing to the left. The distance between the moving arm 116 and the static arm 117 is increased, so that the solder ball of the wafer module is docked with the contact portion 113 with zero insertion force. The design of the four arms 116, 117 allows for better power than existing structures Sexual contact, and during testing, the four arms also provide enough solder ball retention.

8 and 9 show another embodiment, wherein the contact portion 113a of the conductive terminal can also be composed of a static arm 117a and two moving arms 116a (or one moving arm and two static arms), and the partition 236 is directed The left arm moves the arm 116a to increase the distance between the moving arm 116a and the static arm for docking the solder balls of the wafer module.

In summary, the present invention complies with the requirements of the invention patent and submits a patent application according to law. However, the above description is only the preferred embodiment of the present invention, and the scope of the present invention is not limited to the foregoing embodiments, and equivalent modifications or variations 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.

116‧‧‧ moving arm

117‧‧‧ Static arm

231‧‧‧First next door

231a‧‧‧first next door

232‧‧‧Second next door

234‧‧‧ first side

235‧‧‧ second side

Claims (8)

An electrical connector for testing a wafer module, defining a left-right direction and a front-rear direction perpendicular thereto, comprising: a base having a holding groove and a plurality of rows of conductive terminals held in the holding groove; the first sliding plate fixing The base plate is horizontally slidable relative to the base, and is provided with terminal slots extending through the upper and lower surfaces thereof and corresponding to the holding slots, and each of the conductive terminals corresponds to four terminal slots; and the second sliding plate is located at the first sliding plate The conductive terminal includes a contact portion protruding above the second sliding plate via the first and second sliding plates, the contact portion is for abutting with the wafer module, and the contact portion includes a pair of moving arms arranged in the left-right direction and a For the static arm, the moving arm and the static arm are respectively accommodated in the terminal slot. The electrical connector of claim 1, wherein the terminal groove is surrounded by a plurality of first partition walls extending forward and backward and a second partition wall extending left and right, and between the two movable arms and the two static arms A slot is provided, and the second partition wall is received in the slot. The electrical connector of claim 2, wherein the first partition walls are parallel to each other and the second partition walls are also parallel to each other. The electrical connector of claim 3, wherein the first partition defines an opposite first side and a second side, and the movable arm abuts against the first side. The electrical connector of claim 4, wherein the moving arm of the contact portion and the static arm are symmetrical with respect to the first partition wall. The electrical connector of claim 5, wherein the two moving arms of the contact portion are symmetrical with respect to the second partition wall. The electrical connector of claim 6, wherein the conductive terminal further comprises a holding portion held on the base, the holding portion includes a first arm and a second arm, and the movable arm and the static arm are respectively from the first arm and the first The ends of the two arms are split, and the first arm and the second arm are partially restricted by the base. The electrical connector of claim 7, wherein the static arm is in contact with the second side of the first partition and spaced apart from the adjacent first partition.