CN100353616C - Electronic card connector - Google Patents

Abstract

The present invention relates to an electronic card connector, which mainly has a top abutment sheet and a top abutment point on a shielding shell of the electronic card connector. The top abutment sheet and the top abutment point can respectively abut against a guide member of a card ejection mechanism and an upper edge of a fixed end thereof, so as to limit the upward displacement of the guide member, thereby preventing the guide member from shaking up and down, and effectively solving the problem that the guide member is easy to loosen or fall off; in addition, the guide groove at the bottom of the sliding member is slidably matched with the corresponding guide rib on the insulating body, so that the sliding member is more stable when sliding on the insulating body, thereby making the electronic card more stable and smooth in advance and retreat.

Description

electronic card connector

technical field

The invention relates to an electronic card connector, in particular to an electronic card connector which is installed on a circuit board and can be inserted into an electronic card.

Background technique

In recent years, since electronic cards have been widely used in the field of information processing, a connector for receiving the electronic card has emerged as the times require. The electronic card connector can be installed on the circuit board for The electronic card is inserted so that the electronic card and the circuit board are electrically connected to transmit signals between the electronic card and the circuit board.

As shown in Figure 1, a common electronic card connector is disclosed, which includes an insulating body 1, a plurality of conductive terminals 2 and a card ejection mechanism 3, wherein the insulating body 1 has a base 11 and two connectors connected to the base 11 The first arm portion 12 and the second arm portion 13 extending in parallel at both ends form an insertion slot that can be used to insert an electronic card 4 (such as an SD card) between the base portion 11 and the first and second arm portions 12 and 13. card space14.

The conductive terminal 2 is installed on the base 11 of the insulating body 1, and one end of each conductive terminal 2 protrudes from the bottom of the insulating body 1 to form a welding end, which can be used for soldering on the circuit board and achieves electrical connection with the circuit board. . The other end of each conductive terminal 2 protrudes into the card insertion space 14 to form a contact end, which can be used to contact the electronic card 4 inserted in the card insertion space 14 to achieve electrical connection.

The card ejecting mechanism 3 has a sliding piece 31 that can slide forward and backward on the insulating body 1, an elastic component 32 for providing reset force and a guide piece 33 fixed on the sliding piece 31, In addition, a track curve groove 34 is provided on the insulating body 1 , and one end of the guide piece 33 is slidably fitted in the track curve groove 34 , and one end of the guide piece 33 can move in two sections in the track curve groove 34 .

When the electronic card 4 is about to be inserted or withdrawn, the electronic card 4 can be pushed along the direction of card insertion, and the electronic card 4 then pushes the sliding member 31, and the guide member 33 moves relatively in the track curve groove 34, To complete the operation of inserting or withdrawing the card, so as to guide the electronic card 4 to insert or withdraw from the electronic card connector

In the above-mentioned common electronic card connector, when one end of the guide 33 slides in the track curve groove 34, the guide 33 is likely to shake up and down. If the fluctuation is too large, the guide 33 will loosen. , falling off, the card ejection mechanism 3 and even the entire electronic card connector cannot be used normally.

Furthermore, the slider 31 of the above-mentioned common electronic card connector is slidably arranged on the insulating body 1. When the electronic card 4 pushes the slider 31 to move forward and backward, the slider 31 is likely to vibrate, causing the electronic card The advance and retreat of 4 are relatively unstable and smooth, which easily affects the overall structure of the electronic card connector and the effect of electrical connection.

In addition, in the common electronic card connector mentioned above, when the electronic card 4 is inserted into the card insertion space 14, the electronic card 4 is not well fixed, and it is difficult to stably insert it into the card insertion space 14, so that the electronic card 4 The electrical connection with the electronic card connector is poor.

Also, in the above-mentioned common electronic card connector, the front ends of the two arm parts 12 and 13 of the insulating body 1 form free ends. The contact of the card 4 causes outward expansion, deformation, and even fracture.

Contents of the invention

The main purpose of the present invention is to provide an electronic card connector, which can limit the upward displacement of the guide, avoid the guide from shaking up and down, so that the guide does not have to worry about loosening or falling off, and the electronic card is connected The device structure is more stable.

Another object of the present invention is to provide an electronic card connector, which can make the sliding part more stable when sliding on the insulating body, and make the advance and retreat of the electronic card more stable and smooth.

Another object of the present invention is to provide an electronic card connector, which can ensure that the electronic card is well fixed when inserted into the card insertion space, and can be stably inserted into the card insertion space, so that the electronic card can be inserted into the card insertion space. The electrical connection between the card and the electronic card connector is better and requires less space.

Another object of the present invention is to provide an electronic card connector, which can increase the strength of the two arms of the insulating body, and effectively prevent the two arms from expanding, deforming and breaking.

In order to achieve the above object, the present invention provides an electronic card connector, comprising: an insulating body, which has a card insertion space, and a guiding rib protrudes from the insulating body; a plurality of conductive terminals are arranged on the insulating body Above; a card ejection mechanism, which has a sliding piece, an elastic component and a guide piece, the sliding piece can be set on the insulating body to slide forward and backward, the sliding piece is provided with a track curve groove, the sliding piece A guide groove is provided at the bottom, and the guide groove is slidably matched with the guide rib. The elastic component is arranged between the insulating body and the sliding piece. The guide piece is fixed on the insulating body with a fixed end. One end of the guide member is movably fitted in the curved groove of the track; and a shielding shell is arranged on the insulating body, and the shielding shell is provided with an abutting piece and a abutting point, and the abutting piece and abutting point Respectively abut against the guide piece and the upper edge of its fixed end.

In order to further understand the technical features, purpose and effect of the present invention, the following embodiments will be used to make it more clear, while referring to the accompanying drawings, the technical content of the present invention can be further disclosed clearly.

Description of drawings

FIG. 1 is a perspective view of a common electronic card connector;

Fig. 2 is a three-dimensional exploded view of the electronic card connector of the present invention;

Fig. 3 is a perspective view of the electronic card connector of the present invention (the shielding shell is not combined);

Fig. 4 is a perspective view of another angle of the electronic card connector of the present invention (the shielding shell is not assembled);

Fig. 5 is a perspective view of another angle of the slider of the present invention;

Fig. 6 is a schematic diagram of cooperation between the stud of the slider and the concave hole of the insulating body of the present invention;

Fig. 7 is a schematic diagram of cooperation between the guide groove of the slider and the guide rib of the insulating body of the present invention;

Fig. 8 is a schematic diagram of the abutting piece of the present invention abutting against the upper edge of the guide;

Fig. 9 is a schematic diagram of the pressed tablet of the present invention being pressed on the upper edge of the slider.

Wherein, the reference signs are as follows:

1--insulation body, 11--base, 12--first arm

13--second arm, 14--card insertion space, 2--conductive terminal, 3--card ejection mechanism

31--sliding piece, 32--elastic component, 33--guide piece, 34--track curve groove

4--electronic card, 5--insulation body, 51--base, 52--first arm

53--second arm, 54--card insertion space, 55--guide rib

56--long perforation, 57--fixing hole, 58--concave hole

59--accommodating slot, 501--button block

6--conductive terminal, 61--welding end, 62--contact end

7--card withdrawal mechanism, 71--sliding part, 711--propelling part

712 track curve groove, 713--protruding column, 714--guiding groove

715--bump, 716--accommodating groove, 717--fixing groove

72--Elastic component, 73--Guide, 8--Elastic buckle

81--fixed part, 82--interference part

9--shielding shell, 91--side plate, 92-- button hole

93--top abutment piece, 94--pressed piece, 95--fixed piece, 96--top abutment point

Detailed ways

Please refer to Fig. 2 to Fig. 4, the present invention provides an electronic card connector, including an insulating body 5, a plurality of conductive terminals 6, a card ejection mechanism 7, an elastic buckle 8 and a shielding shell 9, wherein The insulating body 5 is made of plastic material. The insulating body 5 has a base 51 and two first arm portions 52 and second arm portions 53 that are connected to the two ends of the base portion 51 and extend in parallel. The first arm portion 52 and the second arm portion The two arm parts 53 are continuous or discontinuous arms. In this embodiment, the first arm part 52 and the second arm part 53 are discontinuous arms. A card inserting space 54 for inserting an electronic card is formed between the base 51 and the first and second arm parts 52 , 53 . On the insulating body 5, near the first arm portion 52, a strip-shaped guide rib 55 protrudes, and an elongated perforation 56 is respectively provided at an appropriate interval on both sides of the guide rib 55. The rib 55 and the elongated through hole 56 extend an appropriate length along the direction of card insertion and card ejection. In addition, a fixing hole 57 is respectively defined at the tops of the two arm portions 52 and 53 of the insulating body 5 near the front ends.

The conductive terminal 6 is made of metal material with good electrical conductivity and elasticity, and is mounted on the base 51 of the insulating body 5 at intervals. The conductive terminal 6 extends along the direction of card insertion and card ejection. One end of each conductive terminal 6 protrudes from the bottom of the insulating body 5 to form a soldering end 61 , which can be used for soldering to a circuit board to achieve electrical connection with the circuit board. The other end of each conductive terminal 6 protrudes into the card insertion space 54 to form a contact end 62 , which can be used to contact an electronic card (such as an SD card) inserted in the card insertion space 54 to achieve electrical connection.

The card ejecting mechanism 7 is installed on the insulating body 5, and the card ejecting mechanism 7 has a sliding part 71, an elastic component 72 and a guiding part 73, and the sliding part 71 is arranged on the insulating body so that it can slide forward and backward. 5. Near the first arm portion 52, the inner edge of the slider 71 extends to form a pushing portion 711, and the pushing portion 711 extends into the card insertion space 54, so that the electronic card can touch the pushing portion 711, thereby pushing the sliding Item 71. The top of the slider 71 is provided with a track curve groove 712 which can be used to control card insertion and card withdrawal. The front end of the slider 71 is protruded with a tapered post 713, and the insulator body 5 is provided with a recessed hole 58 corresponding to the post 713, and the post 713 is slidably fitted in the recessed hole 58 ( As shown in Figure 6), when the sliding member 71 is made to slide forward and backward, it has a good guiding effect.

In addition, a strip-shaped guide groove 714 is recessed at the bottom of the slider 71 (as shown in FIGS. 5 and 7 ). The guide groove 714 corresponds to the guide rib 55 and is on both sides of the guide groove 714. A protruding block 715 is provided at an appropriate interval, and the two protruding blocks 715 correspond to the two elongated through holes 56 . The guide groove 714 and the protrusion 715 at the bottom of the slider 71 are respectively slidably fitted to the corresponding guide rib 55 and the elongated perforation 56, so that the guide groove 714 and the guide rib 55 and the protrusion 715 can Cooperating with the elongated perforation 56 , the sliding member 71 is guided to slide forward and backward, so that the sliding member 71 is more stable when sliding on the insulating body 5 .

The two ends of the elastic component 72 are respectively accommodated in the accommodating groove 716 of the outer edge of the sliding member 71 and the accommodating groove 59 of the first arm portion 52 of the insulating body 5, and the two ends of the elastic component 72 are in contact with the insulating body respectively. The body 5 and the sliding member 71 make the elastic component 72 disposed between the insulating body 5 and the sliding component 71 , and the elastic component 72 can apply a reset force to the sliding component 71 to move along the card-removing direction.

One end of the guide piece 73 is a fixed end plugged and fixed on the insulating body 5, and the other end of the guide piece 73 is a free end, which is movably fitted in the curved groove 712 of the track. The movement in the curved groove 712 is divided into two sections, so as to form a control unit that can control the insertion and withdrawal of the card, so as to achieve the operations of inserting and withdrawing the card respectively.

The elastic buckling piece 8 is made of elastic metal material. It is an L-shaped piece with a fixed portion 81 and a conflicting portion 82. In the fixing groove 717 , the elastic fastening piece 8 is fixed on the sliding member 71 . The conflicting portion 82 is formed by extending from one end of the fixing portion 81. The conflicting portion 82 is located at the inner edge of the slider 71 and extends into the card insertion space 54. The other end of the conflicting portion 82 forms a free end, so that the conflicting portion 82 can be elastically swing.

The shielding shell 9 is made of metal material, and it is disposed on the insulating body 5 to have better electromagnetic shielding effect to prevent electromagnetic interference. The shielding case 9 is formed with a side plate 91 extending on both sides, and a plurality of fastening holes 92 are respectively provided on the two side plates 91, and the first arm portion 52 and the second arm portion on both sides of the insulating body 5 The outer edge of each part 53 is provided with a plurality of fastening blocks 501 corresponding to the fastening holes 92, the fastening blocks 501 and the fastening holes 92 are fastened to each other, so that the shielding shell 9 is fastened to the insulating body 5 combined into one.

The top of the shielding housing 9 is punched to form a resisting piece 93 and a resisting point 96, the resisting piece 93 and the resisting point 96 are located above the guide member 73, one end of the resisting piece 93 forms a free end, and The abutting piece 93 elastically abuts against the upper edge of the guide member 73 (as shown in FIG. 8 ) with a free end, and the abutment point 96 protrudes from the shielding housing 9 Inside, so as to abut against the upper edge of the fixed end of the guide piece 73 to limit the upward displacement of the guide piece 73 .

The top of the shielding housing 9 is punched to form a pressing piece 94 in addition. The pressing piece 94 is L-shaped, and it is positioned above the slider 71. The pressing piece 94 can be elastically pressed on the upper edge of the sliding piece 71 (as shown in FIG. 9 . ), used to provide the slider 71 with the function of limiting and guiding up and down, left and right.

The top of the shielding housing 9 is punched and formed with two fixing pieces 95. The two fixing pieces 95 extend downwards to extend into the inside of the shielding housing 9, and connect with the fixing holes 57 on the two arms 52 and 53 of the insulating body 5. Correspondingly, the two fixing pieces 95 are plugged and fixed in the two fixing holes 57; through the above composition, the electronic card connector of the present invention is formed.

When an electronic card (not shown) is to be inserted into the card, the electronic card can be pushed and inserted in the card insertion space 54 along the card insertion direction, and the electronic card immediately touches the pushing part 711, thereby pushing the sliding member 71 and simultaneously The guide 73 moves relatively in the track curve groove 712 to achieve the operation of inserting the card, and makes the electrical contact on the electronic card contact with the contact end 62 of the conductive terminal 6 to achieve electrical connection, so that the electronic The card can be electrically connected with the circuit board through the electronic card connector.

When the electronic card is about to be withdrawn, the electronic card can be pushed along the card insertion direction, and the electronic card immediately touches the pushing part 711, thereby pushing the sliding part 71, so that the guiding part 73 is opposite in the curved groove 712. Movement to achieve the operation of card ejection, and through the elastic component 72, the sliding member 71 is given a reset force to move along the card ejection direction, so that the slider 71 can drive the electronic card to perform the card ejection operation.

The electronic card connector of the present invention has many advantages at least as follows:

1. The shielding shell 9 of the present invention is provided with an abutment piece 93 and an abutment point 96, which can abut against the guide piece 73 and the upper edge of its fixed end to limit the upward displacement of the guide piece 73 and avoid The guide piece 73 shakes up and down without fear of the guide piece 73 loosening or falling off, which makes the structure of the electronic card connector more stable.

2. The sliding part 71 of the present invention is provided with a protrusion 713, and the protrusion 713 is slidably fitted in the corresponding concave hole 58 of the insulating body 5, so that the sliding part 71 has good guidance when sliding forward and backward. function; in addition, the guide groove 714 and the protrusion 715 at the bottom of the sliding part 71 are slidably matched with the corresponding guide rib 55 and the elongated perforation 56 on the insulating body 5, so that the sliding part 71 slides on the insulating body 5 When it is more stable, the sliding member 71 will not vibrate, so that the advance and retreat of the electronic card is relatively stable and smooth.

3. The elastic buckling piece 8 of the present invention can be elastically pushed against one side of the electronic card by using the conflicting portion 82, so as to provide the force of lateral pressing and fixing of the electronic card, so that when the electronic card is inserted into the card insertion space 54, the electronic card will It has good fixation and can be stably inserted into the card insertion space 54, so that the electrical connection between the electronic card and the electronic card connector is better. The space is small, but the function of fixing the electronic card can still be achieved.

4. A pressing piece 94 is provided on the shielding case 9 of the present invention, which can be used to press on the upper edge of the slider 71 to provide up and down and left and right positioning and guiding functions, and can guide the slider 71 to move forward and backward stably. Sliding backwards can prevent the sliding part 71 from deforming, and can also make the sliding part 71 more stable when sliding on the insulating body 5, so that the advance and retreat of the electronic card is more stable and smooth.

5. The shielding case 9 of the present invention is provided with two fixing pieces 95, and the two fixing pieces 95 are plugged and fixed in the fixing holes 57 of the two arms 52 and 53 of the insulating body 5, so the shielding case 9 can be used A reinforcing structure is formed to increase the strength of the two arm portions 52 and 53 of the insulating body 5 , so as to effectively prevent the two arm portions 52 , 53 from expanding, deforming and breaking.

Although the present invention has been described through the embodiments, it should be understood that all simple replacements and changes made by the technical means of the present invention can achieve Solutions with equivalent functions should still be covered by the patent protection scope of the present invention.

Claims (12)

1. An electronic card connector, comprising: An insulating body, which has a card insertion space, and a guiding rib protrudes from the insulating body; A plurality of conductive terminals are arranged on the insulating body; A card ejection mechanism, which has a sliding part, an elastic component and a guide part, the sliding part can slide forward and backward and is arranged on the insulating body, a track curve groove is provided on the sliding part, and the bottom of the sliding part A guide groove is provided, and the guide groove is slidably matched with the guide rib. The elastic component is arranged between the insulating body and the sliding piece. The guide piece is fixed on the insulating body with a fixed end. The guide One end of the piece is movably fitted in the curved groove of the track; and A shielding shell, which is arranged on the insulating body, and the shielding shell is provided with a resisting piece and a resisting point, and the resisting piece and the resisting point respectively butt against the guide piece and the upper edge of its fixed end . 2. The electronic card connector according to claim 1, wherein the insulating body has a base and two first and second arms connected to two ends of the base, and the card insertion space is formed on the base and between the first and second arms. 3. The electronic card connector as claimed in claim 2, wherein a fixing hole is respectively provided on the top of the two arms of the insulating body near the front ends, and the shielding housing is provided with two fixing pieces, and the two fixing pieces Insert and fix in the two fixing holes. 4. The electronic card connector as claimed in claim 1, characterized in that, the two sides of the guiding rib on the insulating body are respectively provided with an elongated perforation, and the two sides of the guiding groove at the bottom of the slider are respectively provided with a protrusion , the two protrusions are slidingly fitted in the two elongated through holes. 5. The electronic card connector according to claim 1, wherein one end of the conductive terminal protrudes from the insulating body to form a welding end, and the other end of the conductive terminal extends into the card insertion space to form a contact end. 6 . The electronic card connector as claimed in claim 1 , wherein a pushing portion extends from the inner edge of the slider, and the pushing portion protrudes into the card insertion space. 7. The electronic card connector as claimed in claim 1, wherein a protruding post protrudes from one end of the sliding member, a concave hole is formed on the insulating body, and the protruding post is slidably fitted in the concave hole. 8. The electronic card connector as claimed in claim 1, characterized in that, two sides of the shielding housing are extended to form one side plate, each of the two side plates is provided with a plurality of fastening holes, and the two sides of the insulating body are Each side outer edge is provided with a plurality of fastening blocks corresponding to the fastening holes, and the fastening blocks and the fastening holes are fastened to each other. 9. The electronic card connector as claimed in claim 1, wherein the shielding shell is provided with a pressing piece, and the pressing piece is pressed against the upper edge of the sliding member. 10. The electronic card connector according to claim 1, wherein one end of the abutting piece of the shielding housing forms a free end, and extends downwards into the inside of the shielding housing, with the free end of the abutting piece end against the upper edge of the guide. 11. The electronic card connector as claimed in claim 1, further comprising an elastic locking piece, the elastic locking piece is fixed on the slider, and the elastic locking piece extends into the card insertion space. 12. The electronic card connector as claimed in claim 11, characterized in that, the elastic buckling piece is L-shaped and has a fixing part and a conflicting part, the fixing part is fixed on the slider, and the conflicting part The part is located at the inner edge of the slider and extends into the card insertion space.

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