CN201797085U - electronic card connector - Google Patents

Abstract

The utility model discloses an electronic card connector. The electronic card connector at least comprises an insulation body, a plurality of terminals and a shading housing, wherein an accommodating space is defined and formed by the shading housing and the insulation body; all the terminals are respectively provided with contact parts penetrating into the accommodating space and used for being in contact with an electronic card; a connecting part is arranged between a terminal welding part and a fixing part; and a through hole is formed at the welding part, and more solder can be intaken by the terminals through the through hole, so as to increase the stability of welding.

Description

electronic card connector

【Technical field】

The utility model relates to an electronic card connector, in particular to an electronic card connector used for connecting an electronic card and a printed circuit board.

【Background technique】

With the rapid development of consumer electronic products such as mobile phones and digital cameras, especially under the premise of the rapid expansion of the functions of various electronic products, the storage capacity of these devices can no longer meet the needs of consumers. Therefore, electronic manufacturers add electronic card connectors in electronic equipment to connect external memory card media, so as to expand the storage capacity of the electronic equipment. The signal connection between the electronic card and the printed circuit board in the electronic equipment is realized by means of the electronic card connector installed on the electronic equipment.

For related prior art, please refer to Taiwan Patent Publication No. M331222, which discloses an electronic card connector, which includes an insulating body and a plurality of terminals integrally formed in the insulating body. The terminal is formed by punching and bending a metal sheet, which includes a flat main body, an elastic arm that is torn from the main body and extends obliquely upward, and a welding portion that extends from one end of the main body to the outside of the insulating body to be welded to the circuit board. The end is formed with an arc-shaped contact portion which can be electrically contacted with the conductive sheet of the electronic card. The terminal realizes electrical conduction between the electronic card and the conductive circuit on the circuit board through the welding connection of the welding part and the circuit board.

However, in the prior art, the welding part of the terminal of the electronic card connector is a solid metal sheet, and its welding strength to the circuit board is relatively poor, especially when the welding heat during welding causes the insulating body to warp and deform. The welded portion will be peeled off from the circuit board to affect the stability of the connection between the electronic card connector and the circuit board, thereby affecting the normal use of the entire electronic card connector.

In view of the above problems, it is necessary to provide an improved electronic card connector to solve the above problems.

【Content of utility model】

The purpose of the utility model is to provide an electronic card connector, which can increase the connection stability between the terminal welding part and the circuit board.

In order to achieve the above object, the utility model provides an electronic card connector, which at least includes an insulating body, a number of terminals held on the insulating body and a shielding case; the shielding case and the insulating body define a receiving space, Each terminal includes a flat body part, a welding part located on one side of the body part, and a contact part protruding into the receiving space, and the terminal welding part is provided with a through hole.

Compared with the prior art, the electronic card connector of the present invention has at least the following advantages: through holes are provided on the welding parts of the terminals to absorb more solder during welding, thereby improving the stability of welding.

【Description of drawings】

Fig. 1 is a three-dimensional exploded view of the electronic card connector of the present invention.

FIG. 2 is an exploded perspective view of the card connector shown in FIG. 1 .

FIG. 3 is a perspective view of terminals of the electronic card connector of the present invention.

FIG. 4 is an exploded perspective view of the electronic card connector shown in FIG. 2 viewed from another angle.

【Detailed ways】

The specific implementation manner of the electronic card connector 100 of the present invention will be described in detail below with reference to the accompanying drawings.

Please refer to Fig. 1 and Fig. 2, the electronic card connector 100 of the present utility model has an insulating body 1, a shielding shell 2 covering on the insulating body 1, and a plurality of terminals 3 installed in the insulating body 1, wherein the insulating The main body 1 and the shielding case 2 define a receiving space for receiving electronic cards.

Referring to Fig. 2 and Fig. 4, the shielding shell 2 has a rectangular plate-shaped top plate 20, which is bent and extended downwards from both sides of the top plate 20 to form a pair of opposite side plates 22, and the rear end of the top plate 20 is close to the left and right sides. There is a buckle hole 201 at the side respectively, and several fixing pieces 222 are bent and extended at the bottom of the two side plates 22 respectively, and the fixing pieces 222 formed on the two side plates 22 are relatively extended, and these fixing pieces 222 are all parallel to the top plate 20 set up.

Please refer to FIG. 2 and FIG. 4 , the insulator body 1 is roughly rectangular in shape, and includes a flat base 10 and side walls 12 on both sides of the base 10 , wherein the base 10 is penetrated with a plurality of terminal receiving portions 103 arranged in two rows. The tops of the two side walls 12 of the insulating body 1 are respectively arranged in a step shape, and a relatively low flat installation part 120 is formed on the side close to the electronic card insertion port, and a relatively high one is formed at the end of the electronic card insertion direction. The protruding portion 121 of the insulating body sidewall 12 is recessed toward the bottom of the circuit board to form a recessed portion 122 , and the recessed portion 122 is disposed corresponding to the mounting portion 120 . The inner sides of the side walls 12 adjacent to the insertion openings are respectively provided with chamfer-shaped guide portions 124 for guiding the insertion and removal of the electronic card. The mounting part 120 is protrudingly provided with a buckle block 123 near the end of the protruding part 121. When the installation is completed, the buckle block 123 is buckled with the buckle hole 201 on the shielding shell 2 to realize the shielding shell 2 on the insulating body 1. on the positioning.

Please refer to Fig. 2 to Fig. 4, the structures of the two rows of terminals 3 held on the insulating body 1 are roughly the same, and they are all stamped and formed by metal plates. The elastic arm 31 formed by punching upwards and the welding portion 32 that is located at one end of the main body 30 and extends out of the insulating body 1, the elastic arm 31 includes first and second elastic parts 311, 312, connected with the main body 30 The inclination angle of the first elastic portion 311 is smaller than that of the second elastic portion 312 . The end of the second elastic part 312 is curved downward to form a contact part 310 , which protrudes into the receiving space and is used for elastic contact with the electronic card. At the same time, positioning parts are formed on both sides of the main body part 30 (not shown in the figure) in order to stably fix the terminal 3 in the insulating housing 1 .

The body portion 30 and the welding portion 32 are arranged parallel to each other and located in different planes, and the two are connected to each other through the connecting portion 33 . The welding part 32 is provided with a through hole 34. In this embodiment, the through hole 34 runs through the middle part of the connecting part 33. The inner wall of the through hole 34 on one side of the welding part 32 is in a zigzag shape for increasing the length of the inner wall; When the electronic card connector 100 is soldered to the circuit board, the through hole 34 can absorb solder to the greatest extent so as to increase the stability of soldering, and the setting of the serrated inner wall also increases the space for absorbing solder. Of course, in other embodiments, the position of the through hole 34 can also be changed to other positions, for example, it can also be completely disposed on the welding portion 32 to achieve the purpose of the present invention.

When assembling, the terminal 3 of the present invention is integrated in the insulating body 1 by injection molding; after that, the shielding case 2 is assembled on the insulating body 1 along the insertion direction of the electronic card, and the buckle hole 201 of the shielding case 2 and the The buckle blocks 123 on the insulating body 1 are interlocked to realize the mutual positioning of the shielding case 2 and the insulating body 1. When the assembly is completed, the fixing piece 222 of the shielding case 2 is correspondingly accommodated at the bottom of the side wall 12 of the insulating body 1 to form a Inside the recessed portion 122. When the electronic card connector 100 is installed on the circuit board, the electronic card connector 100 is installed and fixed on the circuit board by welding the fixing piece 222 of the shielding case 2 and the welding portion 32 of the terminal 3 to the circuit board.

The electronic card connector 100 of the present invention provides through holes 34 on the terminals 3 that can absorb solder to increase the amount of solder absorbed, thereby increasing the stability of the connection between the terminals 3 and the circuit board.

Claims (10)

1. An electronic card connector, which at least includes an insulating body, a plurality of terminals held on the insulating body, and a shielding housing; the shielding housing and the insulating body are bounded to form a receiving space, and each terminal includes a flat body part, the welding part on one side of the main body part and the contact part protruding into the receiving space; the feature is that the terminal welding part is provided with a through hole. 2 . The electronic card connector according to claim 1 , wherein the terminal is provided with a connecting portion connecting the welding portion and the main body, and the through hole partially passes through the connecting portion. 3 . 3. The electronic card connector as claimed in claim 1, wherein at least one inner sidewall of the through hole is serrated. 4 . The electronic card connector as claimed in claim 1 , wherein an elastic arm extending obliquely is formed in the middle of the main body of the terminal, and the contact portion is disposed at the end of the elastic arm. 5. The electronic card connector according to claim 4, wherein the elastic arm comprises a first elastic portion and a second elastic portion connected to each other with different inclination angles, and the elastic portion is connected to the first elastic portion with a larger inclination angle. The two elastic parts are connected. 6 . The electronic card connector as claimed in claim 1 , wherein a positioning portion protrudes from two sides of the main body of the terminal. 6 . 7 . The electronic card connector as claimed in claim 1 , wherein the two ends of the side wall of the insulating body are respectively guided toward the inside of the receiving space to guide the electronic card to be inserted and removed. 8 . 8. The electronic card connector according to claim 1, wherein the insulating body is provided with a base and side walls extending upward from both sides of the base, the side walls are provided with buckle blocks, and the shielding housing is provided with a The top plate above the base of the insulating body and the side plates extending upward from both sides of the top plate are provided with buckle holes that are locked with the buckle blocks on the side plates. 9. The electronic card connector according to claim 8, characterized in that: the top surface of the side wall of the insulating body is stepped, which includes a lower mounting portion and a relatively higher protruding portion, and the buckle block is provided Set on the mounting part of the side wall and close to the protruding part. 10 . The electronic card connector as claimed in claim 8 , wherein a recess is formed on the side wall of the insulating body facing the bottom of the circuit board, and a fixing piece accommodated in the recess is formed by bending the bottom of the side plate of the shielding case. 11 .

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