CN201054411Y - Terminal structure of electric connector - Google Patents

Abstract

The utility model discloses an electric connector, its equipment is in the terminal groove of a plastics pedestal, and it is formed with face and section with the face unloading of a metal sheet, and its one-piece formation has: the surface of the fixing part is vertical and is fixed in the terminal groove of the plastic seat body; and an elastic arm, its tie plate blanking forms a bending shape and presents the arm of force of the section direction extension, it links to the fixed part and turns over and presents the section direction bending extension, its end near has a joint, when the force application should joint should elastic arm present the section direction springing of the sheet metal; with the above structure, the contact elasticity of the elastic arm of the terminal is better, the manufacture is easy, and the space occupied by the terminal slot is smaller when the terminal is assembled.

Description

Terminal structure of electrical connector

technical field

The utility model relates to an electric connector, in particular to a terminal structure of the electric connector.

Background technique

The bottom surface of a chip (such as a CPU) is formed with a plurality of contacts arranged at intervals, and the electrical connector connected to this type of chip uses a pressure to fix the chip on the base, so that the contacts of the chip and the terminal slots arranged in the base The inner terminals are elastically contacted to ensure electrical connection.

Please refer to Fig. 1 and Fig. 2, it is an electrical connector for connecting chips, which is provided with: a base 10, on which a plurality of terminal grooves 11 are arranged; and a plurality of terminals 20, which are arranged on the base The terminal groove 11 of the body is provided with an elastic arm 21 that can bounce up and down, a fixing part 22, and a connecting piece 23. The fixing part 21 is tightly fixed with the terminal groove 11, and its lower end is folded back into an upwardly extending The second plate 24, the elastic arm 21 is connected to the second plate 24 of the fixed part 22, its plate surface is bent upwards to one side 12 of the terminal groove 11 and then bent and extended beyond the other side 13, and a protrusion is provided near the end The connecting piece 23 protrudes from the bottom of the seat body 10 and combines with a solder ball 28 for the contact point 25 .

When the chip is placed on the base 10, each contact point of the chip is in contact with the contact point 25 of each terminal 20, and each terminal 20 is pressed against the contact point of the chip by the elasticity of the elastic arm 21 to achieve an electrical connection effect.

The existing structure has the following disadvantages: 1. The elastic arm 20 of the terminal utilizes the bending of the board surface to achieve the elasticity of bouncing up and down, so the terminal groove 11 needs to have sufficient length as the space for the elastic arm 21 to bend. 2. The elastic arm It is difficult to accurately control the size of the 21 plate surface in stamping and bending, and the cost of stamping is relatively increased.

Contents of the invention

The main purpose of this utility model is to provide a terminal structure of an electrical connector. The elastic arm of the terminal is connected to the fixed part and folded back to extend in the cross-sectional direction, so that the terminal is easy to manufacture and occupies the space of the terminal groove during assembly. Small and good elastic effect.

The secondary purpose of this utility model is to provide a terminal structure of an electrical connector. The elastic arm is provided with a main elastic arm and a secondary elastic arm. The arm is bent and extended in the direction of the section to increase the elastic force arm and have better elasticity.

In order to achieve the above-mentioned purpose, the terminal structure of the electric connector of the present invention is assembled in the terminal groove of a plastic seat body, and it is formed by blanking the surface of a metal plate to form a plate surface and a section, which is integrally formed with a : a fixed part, the board surface is longitudinal and fixed in the terminal groove of the plastic seat body; and an elastic arm, which is formed by blanking the board surface to form a curved force arm extending in the direction of the section, which is connected to the fixed part and reversed It bends and extends in the direction of the cross-section, and there is a contact point near the end. When the contact is applied, the elastic arm bounces in the direction of the cross-section of the metal plate.

With the above structure, the contact elasticity of the elastic arm of the terminal is better, it is easy to manufacture, and the terminal occupies less space in the terminal slot when assembled.

The above and other purposes, advantages and characteristics of the present utility model can be more clearly understood from the detailed description of the following preferred embodiments and with reference to the drawings, wherein:

Description of drawings

FIG. 1 is an exploded perspective view of a conventional electrical connector.

Fig. 2 is a cross-sectional assembled view of a conventional electrical connector.

Fig. 3 is a combined cross-sectional view of the connector of the preferred embodiment of the present invention.

Fig. 4 is a perspective view of the first embodiment of the utility model.

Fig. 5 is a developed plan view of the first embodiment of the utility model.

Fig. 6 is a schematic view of the use state of the first embodiment of the present invention.

Fig. 7 is a plan view of the second embodiment of the utility model.

Fig. 8 is a plan view of the third embodiment of the utility model.

Fig. 9 is a plan view of the fourth embodiment of the utility model.

Fig. 10 is a plan view of the fifth embodiment of the present utility model.

Fig. 11 is a plan view of the sixth embodiment of the present invention.

Fig. 12 is a plan view of the seventh embodiment of the present utility model.

Fig. 13 is a plan view of the eighth embodiment of the utility model.

Fig. 14 is a plan view of the ninth embodiment of the present utility model.

Fig. 15 is a schematic plan view of the tenth embodiment of the present invention during manufacture.

Fig. 16 is a side view of the tenth embodiment of the present utility model.

Fig. 17 is a side view of the eleventh embodiment of the present utility model.

Fig. 18 is a side view of the twelfth embodiment of the present utility model.

Fig. 19 is a perspective view of a thirteenth embodiment of the present invention.

Fig. 20 is a plan view of the thirteenth embodiment of the present utility model.

Fig. 21 is a plan view of the fourteenth embodiment of the utility model.

Fig. 22 is a plan view of the fifteenth embodiment of the present utility model.

Fig. 23 is a plan view of the sixteenth embodiment of the present utility model.

Fig. 24 is a plan view of the seventeenth embodiment of the present utility model.

Fig. 25 is a perspective view of the eighteenth embodiment of the present utility model.

Fig. 26 is a perspective view of the nineteenth embodiment of the present invention.

Fig. 27 is a perspective view of the twentieth embodiment of the present invention.

Fig. 28 is a perspective view of the twenty-first embodiment of the present utility model.

Detailed ways

Please refer to Fig. 3 and Fig. 4, the electrical connector according to the first embodiment of the present utility model includes: a plastic seat body 30 and a plurality of terminals 40, wherein:

The plastic seat body 30 is provided with a plurality of rows of terminal grooves 31 arranged at intervals.

Please refer to FIG. 5 , the plurality of terminals 40 are integrally stamped by blanking a metal plate 50 to form a continuous arrangement of terminals connected by a strip 53 , and each terminal 40 has a plate surface 47 and a section 49 The continuous rows of multiple terminals 40 can match the distance between the terminal slots 31, and are assembled in the terminal slots 31 from top to bottom. Each terminal 40 includes: a fixing part 41, which is longitudinally fixed on the plastic seat The terminal groove 31 of the body 30 has a wide plate surface so as to be fixed with the terminal groove 31 of the plastic seat body 30, and it is provided with a first side 410 and a second side 411, and its upper end 43 is connected with the strip 53; an elastic arm 45 It is to form a curved shape extending in the direction of cross-section 49 by means of blanking on the board surface. It is connected to the middle 42 of the lower end of the fixing part 41 and is folded upwards to bend and extend in the direction of cross-section 49. It first goes to the first side of the fixing part 41. The side 410 bends and extends to the second side 411 of the fixed part 41, so that the upper end 43 and the second side 411 of the fixed part 41 are exceeded, and a contact point 46 contacting the upper and lower directions is provided near the end, and the contact point 46 is a section; and two connecting pieces 48 , which are connected to both sides of the lower end of the fixing part 41 , so as to connect and fix a solder ball 55 .

With the above structure, since the elastic arm 45 of the terminal 40 is folded upward from the lower end of the fixed part 41 and extends upwards and beyond the side of the fixed part to the terminal groove 31 next to the next wall, the elastic arm 45 can have a very long arm and can have Excellent elasticity; as shown in Figure 6, when the chip 60 is put into contact with the terminal 40, the elastic arm 45 of the terminal shrinks elastically, and its contact 46 can elastically contact the contact point 61 of the chip 60, and the elastic arm of the terminal 45 extends from the bottom to the top, so it will not touch the terminal 41 next door to cause a short circuit; moreover, since the plate surface of the elastic arm 45 extends vertically toward the side of the fixed part 41, only the terminal groove is used. Therefore, the length of the terminal groove 41 can be shortened, which is more conducive to the configuration of the space, and more terminal grooves can be designed. In addition, the elastic arm 45 of the terminal is formed by blanking the board instead of bending, so it is easy to manufacture. Easy to control size and easy to manufacture.

From the above description, the utility model can have the following advantages:

1. The elastic arm 45 of the terminal 40 folds back from the lower end of the fixing part 41 and extends upwards and beyond the side of the fixing part to the terminal slot 31 on the next wall, so the elastic arm 45 can have excellent elasticity.

2. The plate surface of the elastic arm 45 of the terminal 40 extends vertically toward the side of the fixed part 41 (cross-sectional direction) and extends upwards. Only the width of the terminal groove is used, so the length of the terminal groove 41 can be shortened, which is more conducive to space. Configuration, but more terminal slots can be designed, and the terminals are easy to manufacture.

3. The elastic arm 45 of the terminal 40 is formed by blanking instead of bending, so it is easy to control the size and manufacture.

Please refer to FIG. 7 , which shows a second embodiment of the present utility model, which is roughly the same as the first embodiment, the difference being that the elastic arm 45 of the terminal 40 is folded upward from the lower end of the first side 410 of the fixing part 41 and then upward. Bending toward the second side 411 and extending beyond the upper end 43 of the fixing portion 41 and the second side 411 , the middle of the lower end of the fixing portion 41 is downwardly connected to a connecting piece 48 .

Please refer to FIG. 8 , which shows a third embodiment of the present utility model, which is substantially the same as the first embodiment, the difference being that the elastic arm 45 of the terminal 40 is folded upward from the lower end of the second side 411 of the fixing portion 41 Slightly bend to the right first, then bend to the left with a large arc, and finally exceed the upper end 43 and the second side 411 , and connect a connecting piece 48 downwards in the middle of the lower end of the fixing part 41 .

Please refer to FIG. 9 , which shows a fourth embodiment of the present invention, which is substantially the same as the second embodiment, the difference being that the connecting piece 48 is connected to the lower end of the second side 411 of the fixed portion 41 .

Please refer to FIG. 10 , which shows a fifth embodiment of the present invention, which is substantially the same as the third embodiment, the difference being that the connecting piece 48 is connected to the lower end of the first side 410 of the fixing portion 41 .

Please refer to FIG. 11 , which shows a sixth embodiment of the present utility model, which is roughly the same as the first embodiment, the difference being that the elastic arm 45 of the terminal 40 is folded upward from the lower end of the second side 411 of the fixing portion 41 And slightly curved arc shape, it first bends and extends to the first side 410 of the fixed part, then bends back and extends to the second side 411 of the fixed part, and finally exceeds the upper end 43 and the second side 411 of the fixed part. A connecting piece 48 is connected to a lower end of the first side 410 .

Please refer to Fig. 12, which shows the seventh embodiment of the present utility model, which is roughly the same as the sixth embodiment, the difference is that the lower section of the elastic arm 45 of the terminal 40 is obliquely connected, and the lower end of the fixed part 41 is connected to a connection Sheet 48.

Please refer to FIG. 13 , which shows the eighth embodiment of the present utility model, which is roughly the same as the first embodiment, the difference being that the elastic arm 45 of the terminal 40 is folded upward from the lower end of the second side 411 of the fixing portion 41 Extend a longitudinal length, then form a curved arc to the left, and finally exceed the upper end 43 and the second side 411 of the fixing part, and connect a connecting piece 48 in the middle of the lower end of the fixing part 41 .

Please refer to FIG. 14 , which shows a ninth embodiment of the present invention, which is substantially the same as the sixth embodiment, the difference being that the elastic arm 45 of the terminal 40 does not extend upward beyond the second side 411 of the fixing portion 41 .

Please refer to Fig. 15 and Fig. 16, which shows the tenth embodiment of the present utility model, which is roughly the same as the first embodiment, the difference is that the position of the contact point 46 of the elastic arm 45 of the terminal 40 is that the two boards are folded and bent. The folding place makes the joint 46 a circular arc surface instead of a section.

Please refer to FIG. 17 , which shows an eleventh embodiment of the present invention, which is substantially the same as the first embodiment, the difference being that the contact point 46 of the elastic arm 45 of the terminal 40 is formed by bending the board.

Please refer to Fig. 18, which shows a twelfth embodiment of the present utility model, which is roughly the same as the first embodiment, the difference being that the contact point 46 of the elastic arm 45 of the terminal 40 is formed by material extrusion to reduce the thickness of the plate Horizontal flange.

Please refer to Fig. 19 and Fig. 20, which shows the thirteenth embodiment of the present utility model, which is roughly the same as the sixth embodiment, wherein the difference is that the elastic arm 45 of the terminal 40 includes a main elastic arm 412 and a secondary elastic arm 413, the secondary elastic arm 413 is connected to the lower end of the second side 411 of the fixing part 41 and the board surface is on the same plane. Folded with the plate surface of the fixed part 41, it bends upwards to the first side 410 of the fixed part, then bends back to the second side 411 of the fixed part, extends beyond the upper end 43 of the fixed part and the second side 411, so that The main elastic arm 412 and the auxiliary elastic arm 413 are slightly C-shaped after being folded back. The main elastic arm 412 is provided with a contact point 46 for bouncing up and down near the end.

In this embodiment, an auxiliary elastic arm 413 is added on the same surface of the fixed part 41 by the elastic arm 45, so that the overall length of the elastic arm can be lengthened and the elastic effect can be increased. When the contact point 46 is subjected to a downward force, the auxiliary elastic arm 413 will spring to the first side 410 of the fixed part, and the main elastic arm 412 will spring to the second side 411, so the overall elastic effect is very good.

Please refer to FIG. 21 , which shows a fourteenth embodiment of the present utility model, which is substantially the same as the thirteenth embodiment, wherein the difference is that the secondary elastic arm 413 extends directly downwards and does not bend toward the first side of the fixing portion. 410.

Please refer to FIG. 22 , which shows a fifteenth embodiment of the present utility model, which is substantially the same as the fourteenth embodiment, wherein the difference is that the main elastic arm 412 extends upwards for a longitudinal length after being folded back, and then extends toward the first The side 410 forms a curved extension, and finally bends and extends to the second side 411 and exceeds the upper end 43 of the fixing portion and the second side 411 .

Please refer to FIG. 23 , which shows the sixteenth embodiment of the present utility model, which is substantially the same as the fifteenth embodiment, the difference being that the auxiliary elastic arm 413 is connected to the middle lower end of the fixing part 41 and the board surfaces are on the same plane. .

Please refer to FIG. 24 , which shows a seventeenth embodiment of the present utility model, which is roughly the same as the fifteenth embodiment, and the difference is that the secondary elastic arm 413 of the elastic arm 45 is connected to the first elastic arm 41 close to the fixed portion 41. side 410 and extends downwards, and the main elastic arm 412 is folded upwards and leans against the first side 410 of the fixed part, then bends and extends to the second side 411, and exceeds the upper end 43 and the second side 411 of the fixed part. Elastic arm 412 is provided with a contact point 46 that bounces up and down near the end; By this, because the secondary elastic arm 413 still has a distance from the first side 411, so when the contact point 46 is subjected to downward force, the secondary elastic arm remains still by the distance. It can be elastic towards the first side 410 of the fixing part.

Please refer to Fig. 25, which shows the eighteenth embodiment of the present utility model, which is another type of terminal, which has the same characteristics as the first embodiment, and each terminal 40 has a plate surface 47 and a section 49. Each terminal 40 includes: a fixing part 41, the board surface of which is longitudinally fixed to the terminal groove of the plastic seat body, which is provided with a front end 414 and a rear end 415; an elastic arm 45 is formed by blanking the board surface A curved force arm extending in the direction of the cross-section is connected to the front end 414 of the fixed part 41 and bent upwards to extend in the direction of the cross-section 49. It first extends to the rear end 415 of the fixed part 41 and then bends upwards to the direction of the fixed part 41. The front end 414 extends so that it exceeds the front end 414 of the fixed part 41, and a contact point 46 protruding downward is provided near the end, which is a section; and a connecting piece 48, which is connected to the rear end of the fixed part 41, is horizontal extend.

Please refer to FIG. 26 , which shows a nineteenth embodiment of the present utility model, which is substantially the same as the seventeenth embodiment, and the difference is that the elastic arm 45 of the terminal 40 includes a main elastic arm 412 and a secondary elastic arm 413, The auxiliary elastic arm 413 is connected to the front end 414 of the fixing part 41 and has the same board surface, and extends forward.

Please refer to Fig. 27, which shows the twentieth embodiment of the present utility model, which is roughly the same as the seventeenth embodiment, wherein the difference is that the fixing portion 41 of the terminal 40 is L-shaped, and the elastic arm 45 is connected to the fixing portion 41 The front end 414 is connected to the top and folded back to extend in the direction of the cross-section. It extends downwards and then bends upwards. Near the end is a contact point 46 protruding sideways. The contact point 46 is a cross-section.

Please refer to FIG. 28 , which shows a twenty-first embodiment of the present utility model, which is substantially the same as the nineteenth embodiment, wherein the difference is that the elastic arm 45 of the terminal 40 includes a main elastic arm 412 and a secondary elastic arm 413 , the auxiliary elastic arm 413 is connected to the top of the front end 414 of the fixing part 41 and the board surface is on the same plane, and it extends upwards.

The specific embodiment proposed in the detailed description of the preferred embodiment is only for the ease of explaining the technical content of the present utility model, and the utility model is not limited to the embodiment in a narrow sense, without exceeding the spirit and The following situations in the scope of the patent application can be implemented in various ways.

[Description of main component symbols]

Plastic seat body 30 terminal slot 31 metal sheet 50 strip 53

Terminal 40 Fixed part 41 Middle of lower end 42 Upper end 43

Elastic arm 45 Contact 46 Board surface 47 Section 49

Connecting piece 48 First side 410 Second side 411 Main elastic arm 412

Auxiliary elastic arm 413 front end 414 rear end 415 solder ball 55

Claims (21)

1. a connector terminals structure is characterized in that it is assembled in the terminal groove of a plastics pedestal, and it is to be formed with plate face and section with the plate face blanking of a metal sheet, has been integrally formed:

One fixed part, its plate face are vertically and are fixed in the terminal groove of plastics pedestal; And

One elastic arm, its tie-plate face blanking forms the arm of force that a curved shape is the extension of section direction, it is connected in fixed part and reflexed is section direction bending extension, and it is provided with a contact near end, and this elastic arm is the section direction springing of metal sheet when this contact of the application of force.

2. connector terminals structure as claimed in claim 1, it is characterized in that, wherein this elastic arm is provided with a main elastic arm and a secondary elastic arm, this pair elastic arm links to each other with this fixed part and plate face coplanar, this main elastic arm reflexed extends makes its plate face become to fold with the plate face of fixed part, and main elastic arm is provided with this contact near end.

3. connector terminals structure as claimed in claim 1 is characterized in that wherein this fixed part lower end is provided with connecting portion.

4. connector terminals structure as claimed in claim 3 is characterized in that wherein this connecting portion is in conjunction with a tin ball.

5. connector terminals structure as claimed in claim 1 or 2, it is characterized in that, wherein this elastic arm system is connected in the fixed part lower end, and it also gradually is bent upwards to fixed part one side and extends beyond fixed part upper end and springing up and down, and it is provided with the contact of an above-below direction contact.

6. connector terminals structure as claimed in claim 5 is characterized in that wherein the contact of this elastic arm system exceeds fixed part one side.

7. connector terminals as claimed in claim 1 structure is characterized in that, but wherein take the shape of the letter U shape and side direction springing of this elastic arm, and it is provided with the contact of a side direction contact.

8. connector terminals as claimed in claim 2 structure is characterized in that, but wherein take the shape of the letter U shape and side direction springing of the main elastic arm of this elastic arm, and it is provided with the contact of a side direction contact.

9. connector terminals structure as claimed in claim 1 is characterized in that wherein this elastic arm is ㄈ shape and springing up and down, and it is provided with the contact of an above-below direction contact.

10. connector terminals structure as claimed in claim 2 is characterized in that wherein the main elastic arm of this elastic arm is ㄈ shape and springing up and down, and it is provided with the contact of an above-below direction contact.

11. connector terminals structure as claimed in claim 3 is characterized in that wherein this connecting portion is a horizontal pin.

12. connector terminals structure as claimed in claim 1 is characterized in that wherein the contact of this elastic arm is a section.

13. connector terminals structure as claimed in claim 1 is characterized in that, wherein the connecting point position of this elastic arm is the folding bending places of two plate faces, makes this contact become arc surface but not section.

14. connector terminals structure as claimed in claim 1 is characterized in that wherein the contact of this elastic arm is that the plate face is bent to form.

15. connector terminals as claimed in claim 1 structure is characterized in that, wherein the contact of this elastic arm is that material is taken out and squeezed and form thickness of slab and dwindle the flange that is level.

16. connector terminals structure as claimed in claim 1 is characterized in that wherein the plate face of plate face of this elastic arm and fixed part is superimposed.

17. connector terminals as claimed in claim 5 structure is characterized in that wherein fixed part is provided with first side and second side, this elastic arm system is connected in first side of fixed part, and its reflexed is upwards and to the second lateral bending Qu Yanshen of fixed part.

18. connector terminals structure as claimed in claim 5, it is characterized in that, wherein fixed part is provided with first side and second side, the secondary elastic arm of this elastic arm is to be connected near first side of fixed part and extension downwards, this main elastic arm is first side that reflexed upwards relies on fixed part earlier, again to the second lateral bending Qu Yanshen.

19. connector terminals structure as claimed in claim 5, it is characterized in that, wherein fixed part is provided with first side and second side, this elastic arm system is connected in second side of fixed part, it is that reflexed upwards is the curved arc shape, its earlier to the first lateral bending Qu Yanshen of fixed part again replication to the fixed part second lateral bending Qu Yanshen.

20. connector terminals structure as claimed in claim 5, it is characterized in that, wherein fixed part is provided with first side and second side, the secondary elastic arm of this elastic arm is second side and downward the omiting to the first lateral bending song that is connected in fixed part, this main elastic arm reflexed upwards and earlier to the first lateral bending Qu Yanshen of fixed part again replication make behind this main elastic arm reflexed and the slightly c-shaped shape of secondary elastic arm to the fixed part second lateral bending Qu Yanshen.

21. connector terminals structure as claimed in claim 5, it is characterized in that, wherein end can connect the arrangement that a strip forms continuous terminal on this fixed part, whole row's continuous terminal is but that distance is spaced between the abutting end pilot trench 31, uses the terminal groove that from top to bottom whole row is assembled in this plastics pedestal.

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