Electrical connector having solder posts with heights greater than maximum widths thereof

Patent metadata

Field	Value
Publication number	US-10490910-B2
Application number	US-201816036041-A
Country	US
Kind code	B2
Filing date	Jul 16, 2018
Priority date	Aug 24, 2017
Publication date	Nov 26, 2019
Grant date	Nov 26, 2019

Abstract

An electrical connector includes: an insulating body, provided with multiple accommodating holes; multiple terminals, respectively accommodated in the accommodating holes, where each of the terminals is provided with a clamping portion; and multiple solder posts, each being clamped by the clamping portion of one of the terminals. A height of each solder post is greater than a maximum width of each solder post. Each solder post is formed by a first base and a second base connected with each other. The clamping portion clamps the first base. The second base is located outside the clamping portion. A height of the first base and a height of the second base are both greater than one half of the maximum width of each solder post. The height of the second base is greater than 0.15 mm.

First claim

What is claimed is:

1. An electrical connector, comprising:
an insulating body, provided with a plurality of accommodating holes, wherein each of the accommodating holes is provided with a stopping block;
a plurality of terminals, respectively accommodated in the accommodating holes, wherein each of the terminals is provided with a clamping portion and a main body portion, the main body portion is provided with a through hole, the through hole is provided with an elastic sheet, and the stopping block is configured to stop the elastic sheet; and
a plurality of solder posts, wherein each of the solder posts is clamped by the clamping portion of one of the terminals, a height of each of the solder posts is greater than a maximum width of each of the solder posts, each of the solder posts is formed by a first base and a second base connected with each other, the clamping portion clamps the first base, and the second base is located outside the clamping portion.

2. The electrical connector according to claim 1 , wherein a height of the first base and a height of the second base are both greater than one half of the maximum width of each of the solder posts.

3. The electrical connector according to claim 1 , wherein a height of the second base is greater than a height of the first base, and the height of the second base is greater than 0.3 mm.

4. The electrical connector according to claim 1 , wherein the main body portion is correspondingly provided with two extending arms at two sides of the through hole, configured to transmit signals between a chip module and a circuit board.

5. The electrical connector according to claim 4 , wherein a connecting portion connects the two extending arms and the clamping portion, and the connecting portion is provided with an anti-siphon structure located above the first base.

6. The electrical connector according to claim 1 , wherein a horizontal cross-section of each of the solder posts is a circle.

7. The electrical connector according to claim 6 , wherein:
each of the terminals is provided with a connecting portion connected to the clamping portion, the clamping portion and the connecting portion surroundingly form an accommodating space, and the first base is located in the accommodating space;
the first base is provided with a first flat surface, a first rounded chamfer connects the first flat surface and a side surface of the first base, and correspondingly, one side of the connecting portion facing the accommodating space is arc shaped and matches with the first rounded chamfer; and
the second base is provided with a second flat surface, a second rounded chamfer connects the second flat surface and the side surface of the second base, and the second rounded chamfer is located outside the accommodating space.

8. The electrical connector according to claim 1 , wherein each of the solder posts is made of one of a plurality of solder balls via a jig, the jig comprises a platform and a pressing member located above the platform, the pressing member moves back and forth in a horizontal direction, the solder balls are located on the platform, and the pressing member downward abuts the solder balls.

9. The electrical connector according to claim 8 , wherein the pressing member presses the solder balls for multiple times and gradually presses the solder balls downward so as to make the solder balls into the solder posts.

10. The electrical connector according to claim 1 , wherein a horizontal cross-section of each of the solder posts is a polygon.

11. The electrical connector according to claim 1 , wherein each of the accommodating holes is provided with two first side walls opposite to each other, the clamping portion is provided between the two first side walls, side surfaces of the first base face the first side walls, and a distance between the two first side walls is greater than the maximum width of each of the solder posts.

12. The electrical connector according to claim 11 , wherein:
each of the accommodating holes is provided with two second side walls opposite to each other, the second side walls are connected with the first side walls, and the two second side walls and the two first side walls jointly surroundingly form the accommodating hole; and
the clamping portion is provided with two clamping arms opposite to each other, the clamping arms face the second side walls, and two gaps are respectively formed between the clamping arms and the second side walls.

13. The electrical connector according to claim 12 , wherein a distance between the two gaps is greater than the distance between the two first side walls.

14. The electrical connector according to claim 1 , wherein the clamping portion has two clamping arms opposite to each other, a free end of each of the clamping arms faces the first base and is provided with at least one stopping portion, and the stopping portion abuts the first base.

15. An electrical connector, comprising:
an insulating body, provided with a plurality of accommodating holes;
a plurality of terminals, respectively accommodated in the accommodating holes, wherein each of the terminals is provided with a clamping portion and a connecting portion connected to the clamping portion, and the clamping portion and the connecting portion surroundingly form an accommodating space; and
a plurality of solder posts, wherein each of the solder posts is clamped by the clamping portion of one of the terminals, a height of each of the solder posts is greater than a maximum width of each of the solder posts, each of the solder posts is formed by a first base and a second base connected with each other, the clamping portion clamps the first base, and the second base is located outside the clamping portion,
wherein the first base is located in the accommodating space, the first base is provided with a first flat surface, a first rounded chamfer connects the first flat surface and a side surface of the first base, and correspondingly, one side of the connecting portion facing the accommodating space is arc shaped and matches with the first rounded chamfer; and
wherein the second base is provided with a second flat surface, a second rounded chamfer connects the second flat surface and the side surface of the second base, and the second rounded chamfer is located outside the accommodating space.

16. The electrical connector according to claim 15 , wherein a horizontal cross-section of each of the solder posts is a circle.

17. The electrical connector according to claim 15 , wherein each of the terminals is provided with a main body portion, the main body portion is provided with a through hole, the through hole is provided with an elastic sheet, each of the accommodating holes is provided with a stopping block configured to stop the elastic sheet, and the main body portion is correspondingly provided with two extending arms at two sides of the through hole, configured to transmit signals between a chip module and a circuit board.

18. An electrical connector, comprising:
an insulating body, provided with a plurality of accommodating holes,_wherein each of the accommodating holes is provided with two first side walls opposite to each other and two second side walls opposite to each other, the second side walls are connected with the first side walls, and the two second side walls and the two first side walls jointly surroundingly form the accommodating hole;
a plurality of terminals, respectively accommodated in the accommodating holes, wherein each of the terminals is provided with a clamping portion between the

Assignees

• Lotes Co Ltd

Inventors

• Ju Ted
• Jin Zuo Feng

Classifications

• H01R13/41

  by frictional grip in grommet, panel or base · CPC title

• H01R43/0235

  for applying solder (H01R43/0228 takes precedence) · CPC title

• H05K2201/10984

  Component carrying a connection agent, e.g. solder, adhesive · CPC title

• H05K2201/1075

  Shape details · CPC title

• H01R12/714

  with contacts abutting directly the printed circuit; Button contacts therefore provided on the printed circuit · CPC title