The utility model discloses a division application that the applicant was the name of electronic card connector for utility model patent No. 201020291703.1 that the applicant applied for at 2010, 8 months and 14 days.
[ detailed description ] embodiments
Referring to fig. 1 and 2, the electronic Card connector 100 of the present invention is a new USB3.0 electronic Card connector for providing an electronic Card (in the embodiment, a Thin electronic Card (Thin Card) conforming to the USB3.0 transmission specification, hereinafter referred to as a USB3.0 Thin Card 200, wherein USB is an abbreviation of english Universal Serial BUS (USB), and USB3.0 is the third generation of USB) for plugging, and the electronic Card connector 100 includes an insulating body 1, a plurality of conductive terminals 2, a Card withdrawing mechanism 3 assembled to the insulating body 1, and a shielding shell 4 covering the outside of the insulating body 1.
Referring to fig. 1 to 5, the insulating housing 1 includes a bottom wall 11, a base 12 and side walls (in the present embodiment, the side walls include a first side wall 13 and a second side wall 14 connecting the bottom wall and the base), the base 12 is located at a rear end of the bottom wall 11, and the first side wall 13 and the second side wall 14 are respectively connected to two sides of the bottom wall 11. The bottom wall 11, the base 12, the first side wall 13 and the second side wall 14 enclose to form an accommodating space 15, and the bottom wall 11 is connected with the base and is located at one side of the accommodating space 15. The receiving space 15 is used for receiving the USB3.0 thin card 200, and the first sidewall 13 is provided with a receiving slot 131 for receiving the card ejecting mechanism 3. The receiving space 15 has an insertion opening 16 for inserting the USB3.0 thin card 200 into the electronic card connector 100. For convenience of description, the insertion opening 16 is defined as the front end of the electronic card connector 100, and the base 12 is defined as the rear end of the electronic card connector. The base 12 is provided with a rear side 121 on the rear side and an upper surface 122 on the upper side with respect to the bottom wall 11. The insulating body is provided with a first accommodating groove 123 and a second accommodating groove 124 for accommodating the conductive terminals, wherein the first accommodating groove 123 penetrates through the rear side 121 and the upper surface 122 of the base part and extends into the bottom wall 11; the second receiving groove 124 extends through the rear side 121 of the base and into the bottom wall 11. The first receiving grooves 123 are divided into five, and the second receiving grooves 124 are divided into four and are arranged between the first receiving grooves 123 at intervals. The bottom wall 11 has a supporting surface 111 for supporting the USB3.0 thin card 200 upward, and the first receiving groove 123 and the second receiving groove 124 are formed on the bottom wall 11 to be recessed downward from the supporting surface 111, wherein the first receiving groove 123 is shallower than the second receiving groove 124 in the thickness direction of the bottom wall 11, and the second receiving groove 124 is deeper. The first and second receiving grooves are T-shaped (see fig. 5), and a holding groove 125 is formed on the base 12. The bottom wall has a guiding groove 112 recessed downward from the supporting surface and communicating with the first receiving groove 123 and the receiving space 15, and the guiding groove 112 and the first receiving groove 123 have the same extending direction, so that the guiding is more convenient. The guiding slot 112 is recessed from the plane where the contact portion of the first conductive terminal is located and penetrates through the insertion opening 16. A bump 113 is disposed between the first receiving groove 123 and the guiding groove 112, the bump 113 is located at the end of the first receiving groove 123, and the front side of the bump is inclined to form a guiding surface 114.
The conductive terminals 2 are divided into at least two groups of first and second conductive terminals, the first and second conductive terminals together form a USB3.0 terminal for transmitting USB3.0 signals, wherein the second conductive terminal 22 is a USB 2.0 terminal for transmitting USB 2.0 signals. The first conductive terminals 21 are arranged into five groups, and are first assembled into a predetermined position in the first receiving groove 123 from top to bottom (the first direction), and then pushed forward from back to front (the second direction perpendicular to the first direction) to the final assembly position. The first conductive terminal 21 includes a holding portion 211 held in the first receiving cavity 123, a soldering portion 212 extending from one end of the holding portion 211, and a contact portion 213 extending from the other end of the holding portion 211 into the receiving space 15. The contact portion 213 of the first conductive terminal 21 is shaped as a flat plate, the contact portion 213 of the first conductive terminal is located in the first receiving cavity 123 and supported downward on the bottom wall of the first receiving cavity 123, obviously, the contact portion 213 is lower than the supporting surface 111, and the contact portion 213 of the first conductive terminal is also exposed in the receiving space 15 for contacting with the USB3.0 thin card 200. The end of the contact portion of the first conductive terminal abuts against the bump 113 to prevent the contact portion of the first conductive terminal from springing outward. The holding portion 211 of the first conductive terminal includes a first horizontal portion 2111 located in the base 12, a second horizontal portion 2112 located in the bottom wall 11, and a connecting portion 2113 connecting the first and second horizontal portions, two sides of the first horizontal portion 2111 are provided with barbs 2114, the barbs 2114 are held in the holding groove 125 to stably hold the first terminal set 21 in the first receiving groove 1121.
The number of the second conductive terminals 22 is four, and the second conductive terminals include a holding portion 221 held in the second receiving groove 124, a soldering portion 222 extending from one end of the holding portion 221, and a contact portion 223 extending from the other end of the holding portion 221 into the receiving space 15. The contact portion 223 of the second conductive terminal 22 is bent and extended from the holding portion 221 to be in an elastic arm shape, so that the contact portion 223 of the second terminal set 22 is elastic and higher than the supporting surface 111 for contacting with the USB3.0 thin card 200. The holding portion 2211 of the second conductive terminal is also provided with barbs 2211 held in the holding slot 125. The contact portion 223 of the second conductive terminal 22 is behind the contact portion 213 of the first conductive terminal, i.e. the contact portion 213 of the first conductive terminal 21 is closer to the insertion opening 16 than the contact portion 223 of the second conductive terminal 22, the contact portions 213, 223 of the first and second conductive terminals are staggered along the insertion direction of the USB3.0 thin card, and the contact portion 213 of the first conductive terminal 21 is lower than the contact portion 223 of the second conductive terminal 22. The soldering portions 212, 222 of the first and second conductive terminals are located on the rear side of the base 12 and are arranged in a row, and the soldering portions 212, 222 are arranged at intervals.
The first receiving groove 123 extends from the upper surface 122 of the base 12 to the bottom wall 11 and extends to the bump 113. Two of the five first receiving grooves 123 at the extreme edge have a bend at a position close to the protrusion 113, so that the first receiving grooves 123 are arranged in a row with the same interval and in order close to the end of the protrusion 113. Ribs 127 are disposed between the first receiving grooves 123, and the second receiving grooves 124 are recessed from the ribs 127. The second receiving groove 124 is located on the lower side of the first receiving groove 123 in the thickness direction of the base portion on the base portion, and penetrates through the base portion 12 from front to back, that is, the second receiving groove 124 is located on a second row different from the first receiving groove 123, is located between two adjacent first receiving grooves 123, and is arranged in a triangular shape with the two first receiving grooves 123; the second receiving grooves 124 are arranged in a row at intervals in the horizontal direction parallel to the receiving surface 111 on the bottom wall. The second receiving groove 124 is provided with a receding cavity 1241 recessed further downward at the end of the bottom wall 11, and the front side of the receding cavity 1241 extends into the rib. The first and second receiving slots are configured to receive the conductive terminals 2. The first horizontal portion 2111 of the first conductive terminal 21 is held in the first receiving slot 123 of the base 12 and extends from the base 12 to the bottom wall 11 through the connecting portion 2113, so that the second horizontal portion 2112 is held in the first receiving slot 124 of the bottom wall 11. The contact portion 213 of the first conductive terminal is wider to ensure contact with the USB3.0 thin card 200, and the two sides of the contact portion 213 are both provided with the protruding barbs 2131, which together with the barbs 2114 on the holding portion 2114 stably hold the first conductive terminal 21 in the first receiving groove 123 from the predetermined position to the final assembly position during the assembly process of the first conductive terminal 21. The two outermost edges of the five first conductive terminals 21 have bent portions 2115 between the second horizontal portion 2112 and the contact portion 213, and the bent portions can be disposed in the corresponding bends of the first receiving grooves, so that the soldering portions 213 of the first conductive terminals are arranged in a row. The second conductive terminal 22 is inserted from the base 12 to the bottom wall 11 from the back to the front, and the second receiving groove 124 is formed deeper on the bottom wall 11 so that the elastic contact portion 223 of the second conductive terminal 22 has a sufficient deformation space. The end of the second conductive terminal contact portion 223 is bent downward to form an L-shaped head 2231, and the head 2231 extends into the relief cavity 1241 of the second receiving groove 124 and extends into the rib 127 to prevent the second conductive terminal 22 from bouncing outward.
The card ejecting mechanism 3 is of a push-push (push-push) structure and is used for ejecting the USB3.0 thin card 200. The card ejecting mechanism 3 includes a slider 31, an elastic member 32, and a guide member 33. The slider 31 slides in the receiving groove 131 of the first sidewall 13. The slider 31 is provided with a heart-shaped slot 311 and a recess 312 (as shown in fig. 5). The front side of the first side wall 13 near the insertion opening is provided with a positioning hole 132, and the rear side of the first side wall 13 near the base 12 is provided with a fixing groove 133. The guide 33 has one end positioned in the positioning hole 132 and the other end received in the heart-shaped groove 311 of the slider 31. The groove 312 is opposite to and communicated with the positioning groove 133, and one end of the elastic element 32 (a spring in this embodiment) is accommodated in the groove 312, and the other end is sleeved on the positioning column 135 disposed in the positioning groove 133. The side of the slider 31 facing the receiving space 15 is provided with an ejector 313 extending into the receiving space, and the ejector 313 is located in the receiving space 15 above the contact portion 213 of the first conductive terminal 21. The slider 31 has a recess 314 on the other side opposite to the pushing portion 313, and the first sidewall 13 has a protrusion 134 received in the recess 314 to prevent the slider 31 from moving backward too much.
The shielding shell 4 covers the insulating body 1, and the accommodating space 15 becomes an accommodating space for accommodating and holding the USB3.0 thin card 200. The shielding shell 4 includes a flat plate-shaped base portion 41 and side portions 42 bent downward from both sides of the base portion 41, and the side portions 42 are also flat plate-shaped. The outer surfaces of the first side wall and the second side wall of the insulating body are respectively provided with a buckling block 17 in a protruding mode, the side portion of the shielding shell is provided with a buckling hole 43 corresponding to the buckling block, and the buckling block 17 is matched with the buckling hole 43. The first and second side portions have welding feet 44 extending downward. The soldering foot 44 is sheet-shaped, and has two stepped sides, and ribs 441 are protruded on the sheet, which are helpful for better soldering and fixing the soldering foot to devices such as a circuit board (not shown). The base portion 41 defines a front edge 411 adjacent the insertion opening 16 and a rear edge 412 adjacent the base portion 12, the front edge 411 being raised upwardly at the insertion opening to facilitate insertion of the USB3.0 thin card 200. The rear edge 412 extends downward to form a fixing leg 413, a slot 126 is formed on the corresponding base 12, and the fixing leg 413 is inserted into the slot 126. In the above, the shielding shell 4 is fixed on the insulating body 1 by the engagement of the locking block 17 and the locking hole 43 and the engagement of the fixing leg 413 and the slot 126. The base 41 extends out of the elastic piece 414 corresponding to the guiding element 33 of the card ejecting mechanism 3, and is used for abutting against the guiding element 33 to ensure the stability of the guiding element 33. The base portion 41 further extends toward the card receiving space with a U-shaped elastic arm 415, and the distal end of the elastic arm 415 is provided with an arc-shaped catching portion 416 to catch the USB3.0 thin card 200 when inserted.
Referring to fig. 6, a USB3.0 thin card 200 is shown that can be inserted into the electronic card connector 100. The USB3.0 thin card 200 has a contact surface 201, and the contact surface 201 has a first docking portion 202 and a second docking portion 203 electrically connected to the first conductive terminal 21 and the second conductive terminal 22, wherein the first docking portion 202 is elastic, and the second docking portion 203 is flat. The first docking portion 202 and the second docking portion 203 are arranged in a front-back row. When the USB3.0 thin card 200 is inserted, the first mating portion 202 enters the first receiving cavity 123 to contact with the contact portion 213 of the first conductive terminal 21 and the second mating portion 203 contacts with the contact portion 223 of the second conductive terminal 22 under the guidance of the guiding groove 112 and the guiding surface 114, wherein the contact portion 213 of the first conductive terminal 21 is adjacent to the guiding groove 112.
The contact portion 213 of the first conductive terminal 21 of the electronic card connector 100 is flat and downwardly supported on the bottom wall, and the contact portion 213 of the first conductive terminal is lower than the supporting surface 111, the contact portion 223 of the second conductive terminal 22 is higher than the supporting surface 111, the first and second terminal sets can be used for connecting with the novel USB3.0 thin card 200, and different using requirements of consumers are met.
Of course, the USB3.0 thin card 200 is not limited to the above embodiment, but may be in various forms. The assembly method of the conductive terminals of the electronic card connector 100 of the present invention is not limited to the aforementioned method, for example, the first conductive terminal can be assembled from top to bottom, and the second conductive terminal can be assembled from back to front. The first/second conductive terminals can also be embedded in the insulating body. The contact parts of the conductive terminals are arranged in a staggered mode, the contact parts of one group of conductive terminals are in a flat plate shape, and the card is conveniently withdrawn by arranging the card withdrawing mechanism, so that the novel electronic card is suitable for the novel electronic card, and different use requirements of consumers are met.