CN212182595U

CN212182595U - Electronic card connector

Info

Publication number: CN212182595U
Application number: CN202020832583.5U
Authority: CN
Inventors: 杨伟; 唐敏
Original assignee: JUST CONNECTOR KUNSHAN CO Ltd
Current assignee: JUST CONNECTOR KUNSHAN CO Ltd
Priority date: 2020-05-18
Filing date: 2020-05-18
Publication date: 2020-12-18
Anticipated expiration: 2030-05-18

Abstract

An electronic card connector comprises a shielding shell provided with a top plate, a first terminal group arranged on the lower surface of the top plate, a second terminal group which is positioned below the top plate and is opposite to the first terminal group, a card support and a switch terminal which move between the first terminal group and the second terminal group, wherein the card support comprises a frame part and an isolation plate, two sides of the isolation plate in the vertical direction respectively form a first card accommodating space and a second card accommodating space with the frame part, the first card accommodating space and the second card accommodating space respectively correspond to the second terminal group and the first terminal group, the switch terminal comprises a movable terminal and a first static terminal and a second static terminal, the movable terminal comprises a fixed base part and a first abutting elastic arm and a second abutting elastic arm which respectively and independently extend into the first card accommodating space and the second card accommodating space from the fixed base part, and the first abutting elastic arm and the second abutting elastic arm respectively correspond to the first card accommodating space and the second card accommodating space, The second stationary terminal performs a switching function by contact breaking. The method and the device can detect the states of two electronic cards in the card support respectively.

Description

Electronic card connector

Technical Field

The present invention relates to the field of electrical connectors, and more particularly, to an electrical card connector.

Background

The patent application No. 201822113128.5 of the people's republic of china discloses an electronic card connector, which comprises a card holder provided with card accommodating spaces in the vertical direction, a shielding shell, a first terminal group formed on the lower surface of a top plate of the shielding shell, a card withdrawing mechanism assembled on the shielding shell, a second terminal group arranged opposite to the first terminal group and welded on a printed circuit board, and a card holder moving space surrounded by the shielding shell, the first terminal group and the second terminal group. The first terminal group is formed on the shielding shell through an insulating body, a tail wall is arranged at the tail of the insulating body, a switch terminal is assembled on the tail wall, a card accommodating space below the card support is opposite to the second terminal group, a card accommodating space above the card support is opposite to the first terminal group, the upper card accommodating space and the lower card accommodating space are respectively loaded with two electronic cards, and the switch terminal is interfered with the tail of the card support to realize a switch function. The switch terminal can only detect the insertion of the card support, but cannot respectively detect the electronic cards in the upper card accommodating space and the lower card accommodating space, and the identification of the true state of the inserted electronic card has defects.

SUMMERY OF THE UTILITY MODEL

In view of the above, it is desirable to provide an electronic card connector for detecting electronic cards in the first and second card receiving spaces respectively.

In order to solve the above technical problem, the present application provides an electronic card connector, including a shielding housing having a top plate, a first terminal set disposed on a lower surface of the top plate, a second terminal set disposed below the top plate and opposite to the first terminal set, a card holder and a switch terminal moving between the first and second terminal sets, the card holder includes a frame portion and an isolation plate, two sides of the isolation plate in a vertical direction respectively form a first and a second card receiving space with the frame portion, the first and the second card receiving spaces respectively correspond to the second and the first terminal set, the switch terminal includes a movable terminal and a first and a second stationary terminals, the movable terminal includes a fixed base portion and a first and a second abutting elastic arms respectively and independently extending from the fixed base portion into the first and the second card receiving spaces, the first abutting elastic arm, The second abutting elastic arm is respectively disconnected with the first static terminal and the second static terminal through contact to realize the switching function.

Preferably, the electronic card connector further includes an insulating body integrally formed with the first terminal group on a lower surface of the top plate of the shielding shell, the insulating body includes a plate-shaped base and a tail wall integrally extending downward from a rear end of the plate-shaped base, the movable terminal is mounted and fixed on the tail wall, and the stationary terminal is integrally formed on the tail wall.

Preferably, the tail wall includes at least one vertical wall and a front-rear through avoidance gap, the avoidance gap can provide a moving space for the first and second abutting elastic arms to move backward, and the vertical wall is provided with a switch terminal groove for installing and fixing the moving terminal.

Preferably, fixed basal portion is including inserting and being fixed in switch terminal inslot barb portion, be formed in fixed basal portion violently outside tip and certainly the welding part that the fixed basal portion bottom formed of bending backward, first, second support hold the bullet arm include from the tip reverse bend the portion of bending that forms, certainly the portion of bending slant forward extend to elasticity portion in the first or second card accommodating space, certainly the elasticity portion top is bent backward and is extended the extension that forms and certainly the extension free end bend form with the contact portion of first, second static terminal electrical contact, elasticity portion with the extension department of bending forms the atress portion.

Preferably, a notch portion is formed in the frame portion of the card holder by removing the frame portion from the rear end of the partition plate, and the stress portions of the first and second abutting elastic arms extend into the first and second card receiving spaces through the notch portion and are located on two sides of the partition plate respectively.

Preferably, each of the first and second fixed terminals includes an embedded portion formed in the insulating body, a solder leg formed by bending the bottom of the embedded portion in the vertical wall backward, and a contact portion formed by extending the embedded portion in the plate-shaped base downward, and the contact portions of the first and second abutting elastic arms are electrically contacted with or disconnected from the contact portions of the first and second fixed terminals.

Preferably, the contact portions of the first and second fixed terminals are distributed in a vertical direction to correspond to the first and second card receiving spaces, the tail portion of the plate-shaped base further includes a retaining wall integrally extended downward, and the contact portions of the first and second fixed terminals are formed at a rear side of the retaining wall to support the contact portions.

Preferably, the shielding shell further includes two side portions formed by bending and extending from two lateral sides of the top plate, elastic arms buckled with two lateral sides of the card holder are formed on two lateral sides of the top plate of the shielding shell by punching, the electronic card connector further includes a card withdrawing mechanism fixed on the shielding shell, the card withdrawing mechanism includes a push rod fixed on one lateral side of the shielding shell and an actuating member riveted on the tail portion of the top plate, and one end of the actuating member interferes with one end of the push rod.

Preferably, a plurality of terminal grooves are formed in a plate-shaped base of the insulating body, a top plate of the shielding shell corresponds to the terminal grooves, a plurality of terminal avoiding holes are formed in the terminal grooves, the first terminal group comprises a fixed end formed in the plate-shaped base, and an elastic contact portion extending downwards in an inclined mode to the second card accommodating space and an elastic contact portion extending upwards in an inclined mode to a limited free end in the insulating body.

Preferably, the fixed end and the free end are respectively located at the front side and the rear side of the terminal groove, the free end is limited at the front end or the rear end of the terminal groove and can move back and forth, and the transverse two ends of the terminal avoidance hole corresponding to the elastic contact part are connected into a whole to form a connecting strip.

The electronic card connector is provided with a first card accommodating space and a second card accommodating space in the up-down direction, a first abutting elastic arm and a second abutting elastic arm which respectively and independently extend to the first card accommodating space and the second card accommodating space are formed by bending one side of a moving terminal of a switch terminal, the first abutting elastic arm and the second abutting elastic arm are respectively in electric contact with different static terminals to independently realize the switch function, whether an electronic card is inserted into the first card accommodating space and the second card accommodating space can be independently detected, and the situation that the insertion of the electronic card cannot be detected due to the fact that the insertion of the card support can only be detected in the prior art is avoided.

Drawings

The accompanying drawings, which are included to provide a further understanding of the application and are incorporated in and constitute a part of this application, illustrate embodiment(s) of the application and together with the description serve to explain the application and not to limit the application.

FIG. 1 is a perspective assembly view of an electronic card connector according to the present invention;

FIG. 2 is an exploded perspective view of the electronic card connector of the present application;

fig. 3 is a perspective view of the electronic card connector of the present application with the shielding shell, the card holder and the second terminal set removed;

FIG. 4 is a view of FIG. 3 from another angle;

FIG. 5 is a perspective view of the movable terminal of the switch terminal of the electronic card connector of the present application;

FIG. 6 is a perspective view of a switch terminal of the electronic card connector of the present application;

fig. 7 is a matching view of the switch terminal and the card holder of the electronic card connector of the present application and a partial enlarged view thereof.

Description of the main component symbols:

a shielding shell-10; a top plate-11; a terminal relief hole-111; a connecting strip-112; a through hole-113; side-12; a resilient arm-123; a card holder-20; a separator-21; a frame part-22; a head-221; side frame-222; a waterproof ring-223; an elastic bump-224; notch-225; a cover plate-23; a first card receiving space-S1; a second card receiving space-S2; -an insulator body-30; a plate-like base-31; a bump-311; a terminal groove-312; a trailing wall-32; a vertical wall-321; switch terminal slot-322; avoiding a notch-323; a first terminal set-40; a fixed end-41; a free end-42; a resilient contact-43; a second terminal set-50; card withdrawing mechanism-60; a push rod-61; an actuator-62; rivet-63; a movable terminal-70; a fixed base-71; a barb-711; an end-712; first and second abutting elastic arms-72, 73; a bent part-721; an elastic portion-722; a first resilient portion-7221; a second resilient portion-7222; a force receiving portion-723; an extension-724; a contact portion-725; a weld-74; -75 parts of interstitial space; a stationary terminal-80; first and second stationary terminals-81, 82; an insert-811; a solder tail-812; contact-813.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the technical solutions of the present application will be described in detail and completely with reference to the following specific embodiments of the present application and the accompanying drawings.

In the present application, the Y direction shown in fig. 1 is the left direction in the left-right direction (lateral direction), the X direction is the front in the front-rear direction (longitudinal direction), and the Z direction is the upper direction in the vertical direction.

Referring to fig. 1 and 2, the electronic card connector of the present application includes a shielding shell 10 having a top plate 11, an insulating body 30 and a first terminal set 40 integrally injection-molded under the top plate 11, a second terminal set 50 disposed opposite to the first terminal set 40 and under the insulating body 30, a latch 20 disposed between the first terminal set 40 and the second terminal set 50, and

switch terminals

70 and 80 disposed at a rear end of the insulating body.

As shown in fig. 3 and 4, the insulative housing 30 includes a plate-shaped base 31 formed by molding the first terminal set 40 on the lower surface of the top plate 11, and a tail wall 32 extending downward from the tail of the plate-shaped base 31. The second terminal set 50 is located at an opposite side of the plate-shaped base 31 of the insulating body 30, and a card-receiving moving space (not numbered) is formed between the first terminal set 40 of the plate-shaped base 31 and the second terminal set 50. The plate-shaped base 31 is provided with a plurality of terminal slots 312 and a plurality of bumps 311 protruding upwards from the plate-shaped base 31 and being clamped on the top plate 11. The tail wall 32 includes a plurality of vertical walls 321, a switch terminal groove 322 opened on one of the vertical walls 321, and an escape notch 323 formed between the two vertical walls 321.

Each of the conductive terminals of the first terminal set 40 includes a fixed end 41 fixed in the plate-shaped base 31 by molding, an elastic contact portion 43 extending from the fixed end 41 to the card holder moving space while bending downward, and a free end 42 formed by extending from the elastic contact portion 43 obliquely upward. The fixed end 41 and the free end 42 are respectively located at two ends of the terminal slot 322 in the front-rear direction, and the free end 42 is clamped in the insulating body 30 in the up-down direction and can move in the front-rear direction.

The shielding shell 10 includes a top plate 11, two side portions 12 formed by bending and extending from two lateral sides of the top plate 11, elastic arms 123 bent and extending from two sides of the side portions 12 into the card holder receiving space, and a through hole 113 penetrating through the top plate 11 for filling plastic material when the insulating body 30 is injection molded. The top plate 11 is provided with a terminal avoiding hole 111 at a position corresponding to the first terminal group 40 or the terminal groove 312, and the terminal avoiding hole 111 is provided with a connecting strip 112 at a position corresponding to the elastic contact portion 43 in the transverse direction. The shielding shell 10 is further provided with a card withdrawing mechanism 60, and the card withdrawing mechanism 60 includes a push rod 61 fixed on the side wall 12 of the shielding shell 10, an actuating member 62 riveted on the tail of the shielding shell 10, and a rivet 63. The rivet 63 is riveted to the shielding shell 10, passes through the insulating body 30, and is fixed to the middle of the actuator 62, the actuator 62 can rotate around the rivet 63, and one end of the actuator 62 abuts against one end of the push rod 61.

As shown in fig. 2 and 7, the card holder 20 includes a frame portion 22, a cover plate 23 located at the outer side of the frame portion 22 in the longitudinal direction, a receiving space (not numbered) opened in the middle of the frame portion 22, and a partition plate 21 integrally formed with the frame portion 22 and dividing the receiving space into a first card receiving space S1 and a second card receiving space S2 in the vertical direction. The frame part 22 includes a head part 221 for mounting the cover plate 23, side frames 222 extending from both lateral sides of the head part 221 to the rear of both lateral sides of the partition plate 21, and a notch part 225 formed at the rear of the partition plate 21. An annular waterproof ring 223 is sleeved or formed on the outer periphery of the head 221, the frame 22 further includes an elastic bump 224 protruding into the first and second card receiving spaces S1, S2, and the elastic bump 224 abuts against the electronic card placed in the first and second card receiving spaces S1, S2 so that the electronic card does not fall off.

The second terminal set 50 and the insulating body 30 are designed in a split type, and the structure principle of the second terminal set 50 is known in the art and will not be described herein.

As shown in fig. 4 to 7, the switch terminal includes a movable terminal 70 and two fixed terminals 80, the movable terminal 70 includes a fixed base 71 inserted into the switch terminal groove 322 of the vertical wall 321, a pair of supporting

elastic arms

72, 73 formed by bending and extending from the lateral outer side of the fixed base 71 in the opposite direction and inclining forward, and a welding portion 74 formed by bending and extending from the bottom of the fixed base 71 in the backward direction. The fixed base 71 has a barb 711 formed at an upper end thereof to be engaged with the switch terminal groove 322 and an end 712 located at a lateral outer side thereof, and the pair of abutting

elastic arms

72 and 73 are bent in opposite directions from the end 712 in a vertical direction. Each of the abutting

elastic arms

72, 73 includes a bending portion 721 bent from the end 712, an elastic portion 722 extending from the bending portion 721 obliquely forward, an extending portion 724 bent and extending from the elastic portion 722 backward, a contact portion 725 bent from the rear end of the extending portion 724, and a force receiving portion 723 formed at the bending portion of the elastic portion 722 and the extending portion 724. The elastic portion 722 includes a first elastic portion 7221 extending from the bending portion 721 forward at a first angle and a second elastic portion 7222 extending from the end of the first elastic portion 7221 forward at a second angle, and the second angle is greater than the first angle.

The static terminal 80 includes a first static terminal 81 and a second static terminal 82, which are independent, and the first and second

static terminals

81, 82 include an embedded portion 811 integrally formed at the tail of the insulating body 30, a solder leg 812 formed by bending the lower end of the embedded portion 811, and a contact portion 813 extending from the embedded portion 811 to the lower side of the insulating body 30. The front end of the contact part 813 is provided with a retaining wall 324 formed by downward integral extension of the plate-shaped base 31 of the insulating body 30, the retaining wall 324 is positioned at the front side of the contact part 813, and the contact part 813 is directly formed on the rear side surface of the retaining wall 324. The contact portions 813 of the first and second

fixed terminals

81 and 82 are disposed in parallel in the vertical direction of the rear side of the retaining wall 324 and correspond to the first and second card receiving spaces S1 and S2, respectively.

The pair of

resilient arms

72, 73 of the movable terminal 70 are defined as a first resilient arm and a second resilient arm, and in an initial state, the contact portions 725 of the first resilient arm 72 and the second resilient arm 73 are electrically contacted with the rear sides of the contact portions 813 of the first and second fixed

terminals

81, 82, respectively. The rear side of the contact portion 725 corresponds to the relief notch 323 between the vertical walls 321 so that the contact portion 725 and the extension portion 724 can move backward.

Specifically, the first and second abutting

elastic arms

72 and 73 are spaced apart from each other and form a spacing space 75, and the first and second abutting

arms

72 and 73 respectively extend forward into the first and second card receiving spaces S1 and S2 through the avoiding gap 323 to be pushed by the electronic card in the first and second card receiving spaces S1 and S2. The rear end of the partition plate 21 is located in the space 75 between the first and second abutting

elastic arms

72, 73, or the rear portion of the partition plate 21 is cut off to avoid the first and second abutting

elastic arms

72, 73.

When two electronic cards are simultaneously installed in the card holder 20 for insertion, the two electronic cards respectively push the first and second abutting

elastic arms

72, 73 backward, so that the first and second abutting

elastic arms

72, 73 are respectively disconnected from the contact portions 813 of the first and second

static terminals

81, 82 to realize a double-switch function; when only one electronic card is inserted into the card holder 20, one electronic card pushes one of the first and second abutting

elastic arms

72, 72 backward to disconnect the electrical contact with the corresponding

static terminals

81, 82 to realize the switching function, while the other abutting elastic arm is not pushed to continuously keep the electrical contact with the corresponding

static terminals

81, 82, so that whether the electronic card is inserted into the card holder 20 can be accurately judged, and the number of the inserted electronic cards can be determined.

The first terminal group 40 of the present application is integrally formed below the top plate 11 of the shielding shell 10 through the insulating body 30, so that the gap existing on the top plate 11 of the shielding shell 10 when the first terminal group 40 is assembled in the prior art is solved, the product height cannot be affected by the gap, and meanwhile, the strength of the first terminal group 40 and the insulating body 30 can be enhanced by the top plate 11 of the shielding shell 10, so that the first terminal group is not easy to deform, and the process yield is higher.

The above description is only an example of the present application and is not intended to limit the present application. Various modifications and changes may occur to those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. An electronic card connector comprises a shielding shell provided with a top plate, a first terminal group arranged on the lower surface of the top plate, a second terminal group which is positioned below the top plate and is opposite to the first terminal group, a card holder and a switch terminal which move between the first terminal group and the second terminal group, wherein the card holder comprises a frame part and an isolation plate, two sides of the isolation plate in the vertical direction respectively form a first card accommodating space and a second card accommodating space with the frame part, the first card accommodating space and the second card accommodating space respectively correspond to the second terminal group and the first terminal group, the electronic card connector is characterized in that the switch terminal comprises a movable terminal and a first static terminal and a second static terminal, the movable terminal comprises a fixed base part and a first abutting elastic arm and a second abutting elastic arm which respectively and independently extend into the first card accommodating space and the second card accommodating space from the fixed base part, and the first abutting elastic arm and the second abutting elastic arm respectively correspond to the first static terminal and the second static terminal, The second stationary terminal performs a switching function by contact breaking.

2. The electronic card connector of claim 1, further comprising an insulative housing integrally molding the first terminal set on a lower surface of the top plate of the shielding shell, the insulative housing including a plate-shaped base and a tail wall integrally extending downward from a rear end of the plate-shaped base, the movable terminal being mounted on and fixed to the tail wall, and the stationary terminal being integrally molded on the tail wall.

3. The connector of claim 2, wherein the rear wall includes at least one vertical wall and a front-to-back through-opening, the through-opening providing a space for the first and second resilient arms to move backward, and the vertical wall is provided with a switch terminal slot for mounting and fixing the movable terminal.

4. The electronic card connector of claim 3, wherein the fixed base includes an agnail portion inserted into and fixed to the switch terminal groove, an end portion formed on a laterally outer side of the fixed base, and a welding portion formed by bending the bottom end of the fixed base backward, the first and second abutting elastic arms include a bending portion formed by bending the end portion backward, an elastic portion extending from the bending portion obliquely forward into the first or second card receiving space, an extending portion formed by bending the top end of the elastic portion backward, and a contact portion formed by bending the free end of the extending portion and electrically contacting the first and second stationary terminals, and the elastic portion and the bending portion of the extending portion form a force receiving portion.

5. The electronic card connector of claim 4, wherein a notch is formed in the frame portion of the card holder at the rear end of the partition, and the force-receiving portions of the first and second abutting arms extend into the first and second card-receiving spaces through the notch and are located at two sides of the partition, respectively.

6. The electronic card connector of claim 5, wherein the first and second static terminals each include an embedded portion formed in the insulating body, a solder leg bent backward from a bottom of the embedded portion in the vertical wall, and a contact portion extending downward from the embedded portion in the plate-shaped base, and the contact portions of the first and second abutting elastic arms are electrically connected to or disconnected from the contact portions of the first and second static terminals, respectively.

7. The electronic card connector of claim 6, wherein the contact portions of the first and second stationary terminals are distributed in a vertical direction to correspond to the first and second card receiving spaces, respectively, the tail portion of the plate-shaped base further includes a retaining wall integrally extending downward, and the contact portions of the first and second stationary terminals are formed on a rear side surface of the retaining wall to support the contact portions.

8. The electronic card connector of claim 1, wherein the shielding shell further includes two side portions bent and extended from two lateral sides of the top plate, elastic arms fastened to two lateral sides of the card holder are further formed by punching on the two lateral sides of the top plate of the shielding shell, the electronic card connector further includes a card ejecting mechanism fixed to the shielding shell, the card ejecting mechanism includes a push rod fixed to one lateral side of the shielding shell and an actuator riveted to a rear portion of the top plate, and one end of the actuator interferes with one end of the push rod.

9. The electronic card connector of claim 2, wherein the plate-shaped base of the housing has a plurality of terminal slots, the top plate of the shielding shell has a plurality of terminal avoiding holes corresponding to the terminal slots, and the first terminal set includes a fixed end formed in the plate-shaped base, an elastic contact portion extending obliquely downward from the fixed end into the second card receiving space, and a free end extending obliquely upward from the elastic contact portion to a position limited in the housing.

10. The electronic card connector of claim 9, wherein the fixed end and the free end are respectively located at front and rear sides of the terminal groove, the free end is limited at the front or rear end of the terminal groove and can move forward and backward, and the terminal avoiding hole is connected to the two lateral ends corresponding to the position of the elastic contact portion to form a connecting strip.