Electrical connector

An electrical connector to be connected with an Next Generation Form Factor (NGFF) interface is disclosed, including a base, a plurality of first terminals, and a plurality of second terminals. A plurality of first terminal slots parallel disposed on one side of the base for the first terminals to be plugged thereinto. A plurality of second terminal slots parallel disposed on the other side of the base for the second terminals to be plugged thereinto. The first terminal has a stair-like structure having a first plugging part, a first connecting part, a second connecting, a third connecting part, and a first bonding part. The present invention discloses an improved first terminal structure from having only one abutment piece to having a stair-like structure with a plurality of connecting parts.

BACKGROUND OF THE INVENTION

1. Field of the Invention

The present invention relates to electrical connectors, and, more particularly, to an electrical connector used to connect with a Next Generation Form Factor (NGFF) interface.

2. Description of Related Art

As the technology for developing electronic products is rapidly growing, many different types of electronic devices have been developed including personal computers, smart phones or tablets. The goal for today's electronic device is centered towards miniaturization, high operational speed, and high functionality.

In recent years, the industry focuses heavily on improving Notebook and Ultrabook by using mSATA as an interface to connect with SSD. However, the function of mSATA in practice does not produce satisfactory results as expected. The advantages of using mSATA are few compared to its price. Besides, the operational speed is no longer sufficient to meet user's requirement.

In view of this, related art in the field is now committed to research in a new interface called Next Generation Form Factor (NGFF), or abbreviated as M2. NGFF can support SATA and PCIe interface, which can substitute mSATA interface used today. The specification of NGFF has many advantages including being smaller in size, higher power efficiency and higher transmission speed. Moreover, different standard sizes have been created to accommodate different needs in order to fit to different designs of different purposes.

Taiwanese Patent No. m449368 disclosed a card connector comprising an insulative body, a plurality of first terminals, and a plurality of second terminals. The ends of the first and second terminals are plugged in the insulative body and arranged in an alternate arrangement. Each of the first terminals has a first bonding end that extends to the outer part of the insulative body for bonding with the first bonding end of the circuit board. Each of the second terminals has a second bonding end that extending to the outer part of the insulative body for bonding with the second bonding end of the circuit board, allowing the card connector to be securely positioned on the circuit board.

Nevertheless, according to the drawings of the previously mentioned patent, the part of first terminal which is exposed from the insulative body of the NGFF connector disclosed by the previously mentioned patent is long and each of the first terminals is not securely fastened with any petitioners, such that first terminals can easily become deformed, causing failure to be successfully bonded onto the circuit board, resulting in poor yield.

SUMMARY OF THE INVENTION

In view of the foregoing problems, the present invention provides an electrical connector to solve bending and poor evenness of the bonding part, comprising: a base having a plurality of first terminal slots parallel disposed on one side of the base and a plurality of second terminal slots parallel disposed on the other side of the base; a plurality of first terminals respectively plugged in the first terminal slots, each of the first terminal having: a first plugging part plugged in the first terminal slot and having a first abutment piece that abuts an inner surface of the first terminal slot via a side surface thereof, allowing the first connecting part to be positioned in the first terminal slot; a first bending part connected with an end of the first plugging part; a first connecting part having one end connected to the first bending part; a second bending part connected with the other end of the first connecting part; a second connecting part having one end connected with the second bending part and including a second abutment piece; a third bending part connected with the other end of the second connecting part; a third connecting part having one end connected with the third bending part; a fourth bending part connected with the other end of the third connecting part; and a first bonding part connected with the fourth bending part; wherein the base has a plurality of first dividing boards disposed among two sides of the first connecting part of each of the first terminal substrates, allowing two adjacent ones of the first terminals to be electrically isolated from each other, and each of the first dividing boards extends from the side of the first connecting part to a side of the second connecting part, allowing the second abutment piece of the second connecting part to abut and be securely positioned onto a side surface of the first division board; and a plurality of second terminals respectively plugged into the second terminal slots, each of the second terminals having: a second plugging part plugged into the second terminal slot; a fifth bending part connected with the second plugging part; an extending part having one end connected with the fifth bending part; a sixth bending part connected with the other end of the extending part; and a second bonding part connected with the sixth bending part.

In an embodiment, grooves are formed on two sides of each of the dividing boards and corresponding to the side surfaces of the second abutment piece, to firmly position the second connecting part between the two first dividing boards with the side surface of the second abutment piece abutting against the grooves.

In summary, the electrical connector according to the present invention improves the structure of the first terminal, by forming a stair-like structure with the second connecting part, the third connecting part, the first bending part, the second bending part and the third bending part of the exposed portion of the first terminal, thereby solving the foregoing problems that too much of the first terminal is exposed from the base without any abutment piece, which subsequently caused irregular bending and poor evenness of the surface of the first terminal.

Besides, a dividing board is disposed between two adjacent ones of the connecting parts, allowing the first terminals to have better high frequency characteristics, preventing the first terminal to be too close causing short circuit as a result of arc breakdown during voltage test.

DETAILED DESCRIPTION OF PREFERRED EMBODIMENTS

The present invention is described in the following with specific embodiments, so that one skilled in the pertinent art can easily understand other advantages and effects of the present invention from the disclosure of the present invention.

It is to be understood that the scope of the present invention is not limited to the disclosed embodiments. On the contrary, it is intended to cover various modifications and similar arrangements. The scope of the claims, therefore, should be accorded the broadest interpretation so as to encompass all such modifications and similar arrangements. In addition, words such as “on”, “top” and “a” are used to explain the preferred embodiment of the present invention only and should not limit the scope of the present invention.

FIGS. 1 to 3show an electrical connector1according to the present invention.FIG. 1is the 3 D view of the electrical connector1according to the present invention.FIG. 2is the detached schematic view showing first terminal111and a base10of the electrical connector1.FIG. 3is a detached schematic view showing second terminals12and the base10. The electrical connector1comprises the base10, the first terminals11, and the second terminals12.

A plurality of first terminal slots101is formed on one side of the base10for the first terminals11to be plugged thereinto. A plurality of second terminal slots102are formed on the other side of the base10. Each of the first terminals11is plugged in the corresponding first terminal slot101, and each of the second terminals is plugged in the corresponding second terminal slot102.

Referring together withFIG. 4, with a line A-A as a cross-sectional line, after the first terminals11and the second terminals12are plugged into the base10, the first terminals11and the second terminals12are arranged in an alternate way in the base10.

FIG. 5is the 3D view of the first terminals11, andFIG. 6is the assembly schematic view showing the first terminals11and the base10. The first terminal11has a first plugging part110, a second connecting part111, a second connecting part112, a third connecting part, a first bonding part114, a first bending part115, a second bending part116, a third bending part117, and a fourth bending part118. The first plugging part110is plugged in the first terminal slot101. The first bending part115is connected with the end of the first plugging part110and exposed from the first terminal slot101. One end of the first connecting part111is connected to the first bending part116. The second bending part116is connected to the other end of the first connecting part111. The second connecting part112has one end connected with the second bending part116, and the other end connected to the third bending part117. One end of the third connecting part113is connected with the third bending part117. The fourth bending part118is connected with the other end of the third connecting part113. The first bonding part114is connected to the fourth bending part118. The first terminal11of the electrical connector1according to the present invention thus has a stair-like structure. The first plugging part110has a first abutment piece1101. When the first plugging part110is plugged in the first terminal slot101, the two sides of the first abutment piece110abut against the inner surface of the first terminal slot101, allowing the first plugging part110to be positioned in the first terminal slot101.

InFIG. 6, the electrical connector1according to the present invention, a first dividing board103is formed on both sides of each of the first connecting part111, for electrically isolating the adjacent first terminals11. Each of the first dividing boards103extends from the side of the first connecting part111to the side surface of the second connecting part112. Apart from being able to electrically isolate the adjacent first terminals11, it also makes the electrical connector1according to the present invention to have better high frequency characteristic. Moreover, during the withstand pressure test on each of the first terminals11, the problem of short circuit due to the arc breakdown as a result of two adjacent ones of the first terminals11being too close can be prevented. In addition, each of the first dividing boards103can also be used to isolate metal copper wires and scraps to prevent short circuit. In other words, copper scraps can cause short circuit of two adjacent ones of the first terminals11, which can be prevented through the function of the first dividing board103.

Besides, not only the first terminal11has a first abutment piece1101, the second connecting part112also has a second abutment piece1121. When the first terminal11is plugged in the firth terminal slot101of the base10, two sides of the second abutment piece1121abut against the side surfaces of the first dividing board103of the base10.

FIG. 7is an assembly schematic view of the second abutment piece1121and the first dividing board103. Grooves1031are formed on two sides of the first dividing board103, at positions corresponding to the second abutment piece1121. When the first terminal11and the base10are coupled together, the two sides of the abutment piece1121abut against the grooves1031of the first dividing board103formed on the two sides of the abutment piece1121.

The first terminal11according to the present electrical connector1has an additional second connecting part112, as compared to the conventional first terminal11, so as to improve on the drawback that the vertical distance between the first plugging part110and the first bonding part114of the conventional first terminal11being too long causing irregular bending (pin warpage as known by skilled of art) and poor planarity. Through abutting the first abutment piece1101against the inner surface of the first terminal slot101and abutting the second abutment piece1121against the grooves of the first dividing board103, the first terminal11according to the present invention thereby has a better positioning compared to the conventional first terminal11which only has one first abutment piece1101.

In addition to forming the first dividing board103in the electrical connector1according to the present invention1, a plurality of second dividing boards104are disposed on two sides of the third connecting part113. The second dividing boards104are used to specify the position of the third connecting part113of each first terminal11, to prevent irregular bending of the third connecting part113(pin warpage) and poor planarity, so as to solve the warpage of the first terminals11and poor planarity problems caused by not having dividing boards in the prior art.

Besides, the objective of the present invention is to solve irregular bending problem of the first terminal11, therefore in ideal situation, the distance between the second connecting part112and the first bonding part114should be as small as possible. In other words, the length of the third connecting part113determines the occurrence of bending problem of the third connecting part and determines the occurrence of bending of the first terminal11.

FIG. 8is a 3D view of the second terminals12.FIG. 9is an assembly schematic view of the second terminals12and the base10. The second terminal12has a second plugging part121, an extending part122, a second bonding part123, a fifth bending part124, and a sixth bending part125. The fifth bending part124is connected to the second plugging part121, the extending part122has one end connected to the fifth bending part124and the other end connected to the sixth bending part125, and the second bonding part123is connected to the sixth bending part125.

The second terminal12is plugged in the second terminal slot102of the base10via the second plugging part121, and the extending part122, the second bonding part123, the fifth bending part124and the sixth bending part125are exposed from the base10. The second plugging part121has a third abutment piece1211. The second plugging part121can be plugged into and positioned firmly on the second terminal slot102of the base10, with the two sides of the third abutment piece abutting against the inner surface of the second terminal slot102.

A plurality of third dividing boards105are disposed on two sides of the extending part122of each of the second terminals12, to electrically isolate adjacent two of the second terminals12, as well as to assist positioning of each extending part122.