CN201323277Y - Electronic card connector - Google Patents

Abstract

The utility model discloses an electronic card connector, which comprises an insulating base, a plurality of conductive terminals accommodated in the insulating base and a metal shell covering the insulating base, wherein the insulating base is provided with a In the terminal hole of the conductive terminal, each conductive terminal includes an elastic arm provided with a contact portion, and a fixed arm extending from one side of the elastic arm. The end of the fixed arm is provided with a soldering foot for contacting the printed circuit board. The fixed arm is provided with a pre-compression arm extending toward the elastic arm, the pre-compression arm is crimped on the elastic arm, and the pre-compression arm acts on the elastic arm in advance, which can reduce the upward force of the conductive terminal acting on the insulating body, The conductive terminal itself has good elastic recovery force and can be in stable contact with the card.

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 a SIM card.

【Background technique】

At present, all mobile phones need to be equipped with a SIM card connector to realize the electrical connection between the SIM card and the internal circuit board of the mobile phone. There are many existing electronic card connectors that can accommodate SIM cards, such as U.S. Patent No. 6,068,514, and Taiwan Patent No. M317095, which all disclose an electronic card connector for accommodating SIM cards. It mainly includes an insulating base, a number of conductive terminals accommodated in the insulating base and a metal cover covering the insulating base. The front end of each conductive terminal is provided with a preloaded part, which is held against the insulating body, so that the conductive terminal is pre-pressed downwards to increase the elastic recovery force of the conductive terminal. The method is fixed in the insulating base, that is, during the molding process of the insulating base, the conductive terminals on the tape are embedded in the insulating base at the same time, so that the conductive terminals and the insulating base are essentially integrated.

However, during the forming process of the terminal and the insulating body, since the front end of the terminal is pressed downward by the insulating body, the front end of the terminal will exert an upward force on the insulating body, so that the insulating body is easy to Deformation, the upward force of the front end of the terminal will deform the upper surface of the insulating body, thereby damaging the surface of the insulating body.

Therefore, it is necessary to improve the conductive terminals of the existing electronic card connector to overcome the defects of the prior art.

【Content of utility model】

The technical problem to be solved by the utility model is to provide an electronic card connector for accommodating a SIM card, in which the conductive terminals can provide pre-pressure by themselves.

In order to solve the above technical problems, the utility model adopts the following technical solutions: an electronic card connector, which includes an insulating base, a number of conductive terminals accommodated in the insulating base and a metal shell covering the insulating base, Wherein, the insulating base is provided with a terminal hole for receiving the conductive terminal, each conductive terminal includes an elastic arm with a contact portion, and a fixed arm extending from one side of the elastic arm, and the end of the fixed arm is provided with a The soldering foot contacting the printed circuit board, the fixed arm is provided with a pre-compression arm extending toward the elastic arm, and the pre-compression arm is crimped on the elastic arm.

Compared with the prior art, the electronic card connector of the present utility model provides a preloading part on the conductive terminal itself. During the assembly process of the conductive terminal and the insulating body, the preloading part can reduce the impact of the conductive terminal on the insulating body. upward force, and the conductive terminal itself has good elastic recovery force, which can make stable contact with the card.

【Description of drawings】

FIG. 1 is a perspective view of the electronic card connector of the present invention.

Fig. 2 is an exploded view of the electronic card connector of the present invention.

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

【Detailed ways】

See also shown in Fig. 1, the electronic card connector of the present utility model is used for accommodating SIM card (not shown), and it comprises insulating base 3, and some conductive terminals 2 that are installed in insulating base 3 and cover on insulating base 3 The metal shell 1 on the top, the insulating base 3 cooperates with the metal shell 1 to form a storage slot 4 for accommodating the card, wherein the insulating base 3 is made of plastic material, and the metal shell 1 is used for shielding static electricity , and at the same time provide a pressure to the card accommodated in the receiving groove 4 to fix the card on the insulating base 3 .

Please refer to FIG. 2, the insulating base 3 is roughly square in shape, including a bottom 30 and a pair of side walls 31 bent vertically from both sides of the bottom 30, wherein the bottom 30 is flat to support the insertion and removal of the card. , and it is provided with two rows of terminal holes 301 arranged along the direction of card insertion and removal, and a number of fixing holes (not labeled) are formed on both sides of the terminal holes 301, and these fixing holes penetrate the upper surface of the bottom 30 in this embodiment, In other embodiments, it may also be a hole closed up and down. The top of each side wall 31 is concavely formed with a stepped surface 311 .

The metal shell 1 includes a main body 10 and arm parts 11 bent from both sides of the main body 10, each arm 11 is correspondingly buckled on the side wall 31 of the insulating base 3, and the main body 10 is just fixed On the stepped surface 311 on the side wall 31 of the insulating body 3, at this time, the vertical height of the upper surface of the main body 10 is equivalent to the highest surface of the side wall 31, so that the overall height of the electronic card connector can be reduced.

Please continue to refer to FIG. 3 , each conductive terminal 2 is roughly U-shaped and formed by punching a metal sheet, which includes a fixed arm 20, an elastic arm 21, and a connecting arm 22 connecting the elastic arm 21 to the fixed arm 20. The arm 21 is located above the fixed arm 20, and the connecting arm 22 extends in an arc. The elastic arm 21 includes a waist portion 210 and an elastic portion 211 extending from the waist portion 210. The waist portion 210 defines a substantially T-shaped opening 212. The narrower side of the opening 212 is close to the contact portion 211, and the wider side is away from the contact portion 211. Of course, the narrower side and the wider side of the contact portion 211 can be interchanged. Both sides of the fixed arm 20 are respectively provided with branch parts 201 bent vertically upwards, the front part extends to form a welding part 202, and the center part is torn to form a pre-compression arm 203 extending vertically toward the elastic arm 21. The pre-compression arm 203 is in the shape of a T character configuration, which includes a wider head 2031 and a narrower extension 2030, the head 2031 slides into the narrower side through the wider side of the opening 212 of the elastic arm 21, because the head 2030 The width is greater than the width of the narrower side of the opening 212, and the overall height of the pre-compression arm 203 is smaller than the height of the elastic arm 21 and the fixed arm 20 in a free state, so the head 2030 of the pre-compression arm 203 is crimped on the waist 210, so that the elastic arm 21 has a tendency to elastically deform upward, that is, when the conductive terminal 2 is not installed in the insulating body 3, it is pre-pressed downward by itself. In a preferred embodiment, the head portion 2030 of the pre-pressing portion 203 is exposed outside the insulating body 3 so as to reduce the overall height of the insulating body 2 .

To sum up, the conductive terminal 2 itself is provided with a pre-pressing portion 203. Before the conductive terminal 2 and the insulating body 3 are embedded and formed, the conductive terminal 2 is pre-pressed downward, and then the conductive terminal 2 and the insulating body 3 During the assembly and molding process, the pre-pressing part can reduce the upward force of the conductive terminal 2 acting on the insulating body 3. In the best state, the insulating body 3 can not be freed from the upward force of the conductive terminal 2, thereby preventing the insulating body 3 from deforming , so that the insulating body 3 has better flatness, and the conductive terminal has better elastic recovery force, and can be stably contacted with the card.

In this embodiment, the conductive terminal is used to contact the SIM card, but its structural design is not limited to this type of electronic card connector.

Claims (10)

1. electronic card coupler, it comprises insulating base, be contained in insulation in this pedestal plurality of conductive terminals and be covered in metal shell on the insulating base, wherein, insulating base is provided with the terminal hole that is used to accommodate described conducting terminal, each conducting terminal comprises elastic arm, relative to elastic arm fixed arm that is provided with and the linking arm that elastic arm is connected with fixed arm, the end of fixed arm is provided with and is used for the welding foot that contacts with printed circuit board (PCB), elastic arm is provided with waist that is connected to linking arm and the contact site that continues extension from waist, it is characterized in that: be provided with a pre-pressure arm between described fixed arm and the elastic arm, this pre-pressure arm is connected fixed arm with elastic arm elasticity.

2. electronic card coupler as claimed in claim 1 is characterized in that: the vertical height of described pre-pressure arm is less than the waist of elastic arm and fixed arm between the two vertical distance under free state.

3. electronic card coupler as claimed in claim 2 is characterized in that: described pre-pressure arm extends to form and is crimped on the elastic arm to elastic arm from fixed arm.

4. as claim 1 or 3 described electronic card couplers, it is characterized in that: described pre-pressure arm is T word shape.

5. electronic card coupler as claimed in claim 4 is characterized in that: described elastic arm is provided with opening, and pre-pressure arm is crimped on the elastic arm by this opening.

6. electronic card coupler as claimed in claim 5 is characterized in that: described opening is T word shape, comprises a side and a narrower side of broad, and pre-pressure arm slips into a narrower side by a side of broad.

7. electronic card coupler as claimed in claim 6 is characterized in that: described pre-pressure arm comprises vertical arm and transverse arm, and the width of broad one side of the opening on the length of transverse arm and the described elastic arm is suitable, greater than the width of a narrower side.

8. as claim 1 or 3 described electronic card couplers, it is characterized in that: the described conducting terminal structure that takes the shape of the letter U, elastic arm are positioned at the fixed arm below, and pre-pressure arm extends to the elastic arm top straight up from fixed arm.

9. electronic card coupler as claimed in claim 8 is characterized in that: described pre-splenium is torn formation from the fixed arm centre.

10. electronic card coupler as claimed in claim 9 is characterized in that: described pre-pressure arm is exposed to outside the insulating body after by elastic arm.

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