Circuit board with realization of electric connection between right side and reverse side through binding post and welding method thereof
A technology of connecting terminal and welding method, which is applied in the direction of printed circuit connected with non-printed electrical components, assembling printed circuit with electrical components, etc., can solve the problems of uneconomical, low efficiency, time-consuming, etc., and achieves low cost and simple process. , the effect of high efficiency
Inactive Publication Date: 2012-01-04
HUADONG PHOTOELECTRIC TECHN INST OF ANHUI PROVINCE
View PDF3 Cites 5 Cited by
- Summary
- Abstract
- Description
- Claims
- Application Information
AI Technical Summary
Problems solved by technology
[0003] Metallizing the holes on the circuit board is a very time-consuming process. Brazing the terminals from one side and then brazing the terminals from the other side will make it inefficient and uneconomical. However, the two-step soldering process is cannot be omitted
Connecting with connectors is only feasible on the edge of the circuit board, but a large number of connection points cannot be arranged on the edge of the circuit board, thus limiting the use of the circuit board
Method used
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
View moreImage
Smart Image Click on the blue labels to locate them in the text.
Smart ImageViewing Examples
Examples
Experimental program
Comparison scheme
Effect test
Embodiment Construction
[0023] Depend on Figure 1-2 The combination of the shown structures shows that the present invention is a circuit board electrically connected between the front and back sides of the connecting terminal. The circuit board 1 is provided with a connecting hole 5 for placing the connecting terminal 3. The metallized parts 2 on both sides and at the circumference of the connection hole 5 are brazed and connected by solder 4; the terminal 3 includes a large end 3a with a large size and a small end 3b with a small size, and the large end 3a and the small end 3b form a ladder Shaped connection terminal 3, solder 4 is located between the large end 3a and the metallized part 2 on one side of the circuit board 1. The solder 4 is a bottomless annular cup with a flange on the metallized part 2 , and the terminal 3 passes through the central hole of the solder 4 .
[0024] After the solder 4 is heated and melted, the solder 4 fills the connection hole 5 and forms half-moon-shaped solder ...
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More PUM
Login to View More Abstract
The invention discloses a circuit board with realization of electric connection between a right side and a reverse side through a binding post and a welding method thereof. A connection hole (5) that is used for placing a binding post (3) is arranged on a circuit board (1); the binding post (3) passes through the connection hole (5) and is in brazing connection with metallization portions (2) through solders (4), wherein the metallization portions (2) are at two sides of the circuit board (1) and are also at a circumferential position of the connection hole (5); the binding post (3) comprises a big end (3a) with a large size and a small end (3b) with a small size; the stepped binding post (3) is formed by the big end (3a) and the small end (3b); and the solders (4) are between the big end (3a) and the metallization portions (2) at one side of the circuit board (1). According to the circuit board provided in the invention, a binding post is heated at one side of the circuit board; solders are melted and flow; and then, the melted solders flow to the other side of the circuit board by the effect of a capillary tube; therefore, brazing connection between the right side and the reverse side of the circuit board can be completed only by one-time brazing.
Description
technical field [0001] The invention relates to the manufacturing field of a circuit board, in particular to a circuit board and a welding method for realizing the electrical connection between the front and back sides through connecting terminals. Background technique [0002] As electronic devices and equipment continue to be miniaturized, it is required to have conductive channels between the front and back sides of the printed circuit board. The channel for electrical connection between the front and back sides of the circuit board is formed by soldering through metallized connection holes and terminals through the circuit board, or is electrically connected by a connector across the front and back sides of the circuit board. [0003] Metallizing the holes on the circuit board is a very time-consuming process. Brazing the terminals from one side and then brazing the terminals from the other side will make it inefficient and uneconomical. However, the two-step soldering p...
Claims
the structure of the environmentally friendly knitted fabric provided by the present invention; figure 2 Flow chart of the yarn wrapping machine for environmentally friendly knitted fabrics and storage devices; image 3 Is the parameter map of the yarn covering machine
Login to View More Application Information
Patent Timeline
Login to View More Patent Type & Authority Applications(China)
IPC IPC(8): H05K1/18H05K3/34
Inventor 吴华夏江祝苗任振国张丽
Owner HUADONG PHOTOELECTRIC TECHN INST OF ANHUI PROVINCE