CN216928974U

CN216928974U - Electronic card connector

Info

Publication number: CN216928974U
Application number: CN202121785497.4U
Authority: CN
Inventors: 陈高; 温宪文; 成波
Original assignee: Kunshan Huile Precision Industry Co ltd
Current assignee: Kunshan Huile Precision Industry Co ltd
Priority date: 2021-08-02
Filing date: 2021-08-02
Publication date: 2022-07-08
Anticipated expiration: 2031-08-02

Abstract

The utility model discloses an electronic card connector, which comprises an insulating body, a conductive terminal, a metal shell, a card withdrawing mechanism and a card holder, wherein the insulating body is provided with a plurality of conductive terminals; the metal shell comprises a top wall and two side walls arranged on two opposite sides of the top wall, and the side walls are provided with accommodating spaces; move back card mechanism including move back the card and with move back the push rod of card linkage, move back the card install rotatoryly in the roof, the push rod at least partially slide set up in accommodation space, the push rod includes back draw-in groove and shelters from the back convex part of back draw-in groove rear end, the lateral wall is equipped with the backward bending and extends into the anti-shell fragment that moves back of back draw-in groove, the anti-shell fragment that moves back support backward hold in back convex part, the anti-shell fragment that moves back adopts reverse bending, and the anti-plastic deformation ability that the reinforcing prevented moving back shell fragment strengthens the anti-drop effect of push rod, has reduced the risk that the push rod meets stronger external force slippage.

Description

Electronic card connector

Technical Field

The present invention relates to an electronic card connector, and more particularly, to an electronic card connector with a card ejecting mechanism.

Background

The electronic card connector is widely applied to electronic equipment and is used for inserting an electronic card so as to realize the electrical connection between the electronic card and a mainboard. For the convenience of card withdrawing, the card connector is usually provided with a card withdrawing mechanism, for example, the card connector disclosed in the patent CN212136796U, which includes an insulating body, a conductive terminal, a card withdrawing mechanism, a metal shell and a card withdrawing mechanism, the card withdrawing mechanism includes a card withdrawing piece and a push rod linked with each other, the card withdrawing piece is rotationally fixed on the top of the metal shell, the push rod is slidably disposed on the side wall of the metal shell in the front-back direction, the metal shell is provided with a spring piece, the side surface of the push rod is provided with a groove, the spring piece is slidably disposed in the groove for preventing the push rod from dropping off the metal shell, however, the spring piece is easy to drop, the interference amount after dropping is reduced, the dropping-proof effect is reduced, if a strong external force is encountered, the push rod has a risk of dropping.

Therefore, there is a need for a new electronic card connector to solve the above-mentioned problems.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide an electronic card connector capable of preventing a push rod from slipping.

In order to achieve the purpose, the utility model adopts the following technical scheme: an electronic card connector comprises an insulating body, a conductive terminal, a metal shell, a card withdrawing mechanism and a card holder; the conductive terminal is fixed on the insulating body; an accommodating space for inserting and pulling out the card holder is formed between the metal shell and the insulating body, the metal shell comprises a top wall and two side walls arranged on two opposite sides of the top wall, and the side walls are provided with accommodating spaces; the card withdrawing mechanism comprises a withdrawing card and a push rod linked with the withdrawing card, the withdrawing card is rotationally installed on the top wall, the push rod is at least partially arranged in the accommodating space in a sliding mode, the push rod comprises a rear clamping groove and a rear convex portion covering the rear end of the rear clamping groove, the side wall is provided with a withdrawing-preventing elastic sheet which is bent backwards and extends into the rear clamping groove, and the withdrawing-preventing elastic sheet is backwards abutted to the rear convex portion.

In a further improvement, the rear convex part and the rear clamping groove are arranged at the top of the push rod.

In a further improvement, the bottom wall of the rear clamping groove is provided with a first guide surface which extends forwards and upwards and is used for guiding the anti-retreat spring piece to slide forwards.

In a further improvement, the rear convex part is provided with a second guide surface for guiding the anti-withdrawal elastic sheet to slide forwards into the rear clamping groove.

The improved structure of the push rod is characterized in that the card withdrawing piece comprises a shaft center part, a first end part and a second end part, the first end part and the second end part are located on two opposite sides of the shaft center part, the shaft center part is rotatably connected with the top wall, the push rod is provided with a front clamping groove and a front convex part, the front clamping groove is connected with the first end part in a lap joint mode, the front convex part is located in front of the front clamping groove, the front clamping groove is communicated with the rear clamping groove in a front-back mode, and the depth of the rear clamping groove is larger than that of the front clamping groove.

In a further improvement, the card withdrawing piece comprises a third end part which is closer to the second end part relative to the first end part, a connecting line of the first end part, the second end part and the third end part is in a triangular shape, and the card support is provided with a boss which is abutted against the third end part.

In a further improvement, the side wall includes a front arm portion, a rear arm portion located behind the front arm portion, and a concave portion between the front arm portion and the rear arm portion, and the first end portion extends into the concave portion and is overlapped with the push rod.

In a further improvement, the anti-withdrawal elastic sheet is formed by bending and extending downwards and backwards from the front edge of the rear arm part and is in an oblique line structure.

In a further improvement, the side wall includes a first matching portion bent and extended downward from the top wall, a connecting portion bent and extended outward from the bottom of the first matching portion, and a second matching portion bent and extended upward from the connecting portion, a front arm portion and a rear arm portion bent and extended inward are arranged at the top of the second matching portion, the front arm portion and the rear arm portion are spaced forward and backward, a concave portion is formed between the front arm portion and the rear arm portion, the accommodating space is formed between the first matching portion, the connecting portion, the second matching portion, the front arm portion and the rear arm portion, the first end portion extends into the concave portion and is in lap joint with the push rod, and the anti-withdrawal elastic sheet is bent and extended downward and rearward from the rear arm portion.

In a further improvement, the front arm part extends inwards and then is fixed on the upper surface of the top wall, and the top wall is provided with a concave part for accommodating the card withdrawing piece.

The push rod of the card withdrawing mechanism of the electronic card connector comprises a rear clamping groove and a rear convex part for shielding the rear end of the rear clamping groove, the side wall of the metal shell is provided with a withdrawing-proof elastic sheet which is bent backwards and extends into the rear clamping groove, the withdrawing-proof elastic sheet is supported against the rear convex part backwards, after the push rod is inserted into the accommodating space, the push rod compresses the withdrawing-proof elastic sheet, the withdrawing-proof elastic sheet is stressed and compressed, the push rod can be inserted smoothly, the elasticity of the inserted push rod is recovered and is matched with the rear convex part to be supported, the withdrawing-proof elastic sheet plays a role in preventing the withdrawing of the push rod, the withdrawing-proof elastic sheet is bent reversely, the plastic deformation resistance of the withdrawing-proof elastic sheet is enhanced, the dropping-proof effect of the push rod is enhanced, and the risk that the push rod slips under strong external force is reduced.

Drawings

FIG. 1 is a perspective view of the electronic card connector of the present invention, with the push rod in a state before card ejection.

FIG. 2 is a perspective view of the electronic card connector of the present invention, showing the push rod after being withdrawn.

FIG. 3 is a cross-sectional view of the electronic card connector of the present invention.

Fig. 4 is an enlarged view within a circle of fig. 3.

Fig. 5 is an exploded perspective view of the electronic card connector of the present invention.

Fig. 6 is a perspective view of the metal shell of the electronic card connector of the present invention.

Fig. 7 is a sectional view taken along a-a of fig. 6.

Fig. 8 is an enlarged view within the circle of fig. 7.

FIG. 9 is a perspective view of the card ejecting member of the electronic card connector of the present invention.

FIG. 10 is a perspective view of the pushing rod of the electronic card connector of the present invention.

Detailed Description

Referring to fig. 1 to 10, an electronic card connector 100 of the present invention includes: the card-ejecting device comprises an insulating body 1, a conductive terminal 2, a metal shell 3, a card-ejecting mechanism 4 and a card holder 5.

The insulation body 1 is split, and includes a first body 11, a second body 12 and a third body 13, wherein the first body 11 and the second body 12 are arranged in front and behind and are respectively located below the third body 13. The conductive terminals 2 are arranged in three groups, and each group of conductive terminals 2 is fixed on the corresponding first body 11, second body 12 and third body 13.

An accommodating space 10 for inserting the card holder 5 and a socket 15 located at the front end of the accommodating space 10 are formed between the insulating body 1 and the metal shell 3. The conductive terminal 2 includes a contact portion 21 and a soldering portion 22, the contact portion 21 extends into the receiving space 10, and the soldering portion 22 is used for soldering on a motherboard (not shown).

The metal shell 3 includes a top wall 31, two side walls 32 and a rear wall 33, wherein the top wall 31 is located above the accommodating space 10 in the vertical direction, the two side walls 32 are respectively located at two sides of the accommodating space 10 in the horizontal direction, and the rear wall 33 is located at the rear side of the accommodating space 10 in the front-rear direction.

The card ejecting mechanism 4 is closer to the insertion port 15 than the rear wall 33 of the metal housing 3, and the card ejecting mechanism 4 includes a card ejecting member 41 and a push rod 42. The card ejecting member 41 is rotatably mounted to the top wall 31 of the metal housing 3. The top wall 31 of the metal case 3 includes a main body 311 and a recess 312 recessed downward from the main body 311. The two sidewalls 32 further include a first sidewall 321 and a second sidewall 322, the first sidewall 321 and the second sidewall 322 are respectively connected to two opposite sides of the top wall 31, the metal shell 3 further includes a step portion 313 connected between the main body portion 311 and the recessed portion 312, and the step portion 313 is inclined, so as to facilitate processing of the metal shell 3.

The recessed portion 312 is provided with a positioning piece 314, the positioning piece 314 protrudes upwards from the top surface of the recessed portion 312, the recessed portion 312 is further provided with a punching hole 310 for forming the positioning piece 314, the punching hole 310 penetrates through the recessed portion 312 along the vertical direction, and the positioning piece 314 is substantially in an L shape. The positioning piece 314 limits the movement range of the card ejecting piece 41, and reduces the risk of over-rotation of the card ejecting piece 41. The recess 312 is further provided with a shaft 317 protruding upward, and the shaft 317 is provided with a drawing hole 318 therein.

The first side wall 321 of the metal shell 3 includes a first matching portion 323 bent and extended downward from the top wall 31, a connecting portion 324 bent and extended outward from the bottom of the first matching portion 323, and a second matching portion 325 bent and extended upward from the connecting portion 324. The top of the second fitting portion 325 is provided with a front arm 326 and a rear arm 327 extending and bending towards the inside, the front arm 236 and the rear arm 327 are spaced from each other, a recess 328 is formed between the front arm 236 and the rear arm 327, and the front arm 326 extends towards the inside above the top wall 31 and is fixed on the top wall 31. The front edge of the rear arm portion 327 is provided with a backward (downward and backward) bent elastic-guard piece 34, so as to enhance the plastic deformation resistance of the elastic-guard piece 34, and the elastic-guard piece 34 is in a diagonal shape. The first engaging portion 323, the connecting portion 324, the second engaging portion 325, the front arm 236 and the rear arm 327 jointly enclose an accommodating space 320, and the push rod 42 is slidably disposed in the accommodating space 320 in a front-back manner.

The card withdrawing piece 41 comprises a shaft center part 410, and a first end part 411 and a second end part 412 which are positioned at two opposite sides of the shaft center part 410, wherein the first end part 411 laterally extends into the concave part 328 of the metal shell 3, is overlapped with the push rod 42 and follows the push rod 42 to move back and forth.

The shaft center part 411 is sleeved on the rotating shaft 317, the shaft center part 411 is provided with a shaft center hole 417, and the rotating shaft 317 is inserted into the shaft center hole 417, so that the card withdrawing piece 41 can rotate around the rotating shaft 317.

The recess 312 is provided with a first guide portion 3121 and a second guide portion 3122 circumferentially surrounding the rotation shaft 317, and the first guide portion 3121 and the second guide portion 3122 protrude upward from the recess 312 and have a substantially inverted L-shape. The card withdrawing member 41 includes a third guiding portion 4111 and a fourth guiding portion 4112 circumferentially surrounding the shaft portion 411, the third guiding portion 4111 is engaged with the first guiding portion 3121, and the fourth guiding portion 4112 is engaged with the second guiding portion 3122. The card ejecting member 41 includes a third end 413 closer to the second end 412 than the first end 411, a connecting line of the first end 411, the second end 412 and the third end 413 is in a triangular shape, and the third end 413 is used for pushing the card holder 5. The first guide portion 3121, the second guide portion 3122, the third guide portion 4111 and the fourth guide portion 4112 are all arc-shaped. The step portion 313 has a through groove 315 extending therethrough, and the second end portion 412 is restricted from rotating within the through groove 315.

The push rod 42 is formed by bending a metal sheet, and includes a main body 421 at least partially accommodated in the accommodating space 320 and a pressing part 422 extending from the main body 421 to a second matching part 325 far away from the metal shell 3, the main body 421 is a vertical sheet structure, and the top of the main body is provided with a front protrusion 431 and a rear protrusion 432 protruding upwards, and a front slot 433 and a rear slot 434 located between the front protrusion 431 and the rear protrusion 432. The front clamping groove 433 is located in front of the rear clamping groove 434 and is communicated with the rear clamping groove 434, the first end 411 of the card withdrawing piece 41 is contained in the front clamping groove 433, the depth of the rear clamping groove 434 is larger than that of the front clamping groove 433, a first guide surface 435 extending backwards and downwards to the rear convex portion 432 is arranged on the inner bottom wall of the rear clamping groove 434, and the first guide surface 435 is an inclined surface or an arc surface. In addition, the rear protrusion 432 is provided with a second guiding surface 436 for guiding the anti-retreat spring plate 34 to slide into the rear slot 434, and the second guiding surface 436 is an inclined surface or a cambered surface.

After the push rod 42 is inserted into the accommodating space 320 of the metal shell 3, the push rod 42 compresses the anti-return spring plate 34, the anti-return spring plate 34 is stressed and compressed, the push rod 42 can be smoothly inserted, the elastic force of the inserted push rod 42 is recovered, the push rod 42 is matched with the rear convex part 432 to abut against the rear convex part, the function of preventing the push rod 42 from being withdrawn is achieved, the anti-return spring plate 34 is bent reversely, the plastic deformation resistance of the anti-return spring plate 34 is enhanced, the anti-drop effect of the push rod 42 is enhanced, and the risk of the push rod 42 encountering strong external force to slip is reduced.

When the card is withdrawn, the pressing portion 422 is pressed, the push rod 42 moves backwards, the front protrusion 431 presses the first end 411 to move backwards, so that the card withdrawing piece 41 rotates, the first guide surface 435 moves backwards to compress the anti-withdrawing elastic piece 34, the anti-withdrawing elastic piece 34 slides along the first guide surface 435, and the front card slot 433 slides through the rear card slot 434, thereby ensuring smooth card withdrawing.

The card support 5 is inserted into the accommodating space 10 for loading the electronic card 200, the upper surface of the card support 5 is provided with a boss 53 for abutting against the third end 413, when the card is withdrawn, the card withdrawing piece 41 rotates, the third end 413 abuts against the boss 53, so that the card support 5 is urged to withdraw from the accommodating space 10, and the purpose of withdrawing the card is achieved.

Although the preferred embodiments of the present invention have been disclosed for illustrative purposes, those skilled in the art will appreciate that various modifications, additions and substitutions are possible, without departing from the scope and spirit of the utility model as disclosed in the accompanying claims.

Claims

1. An electronic card connector comprises an insulating body, a conductive terminal, a metal shell, a card withdrawing mechanism and a card holder; the conductive terminal is fixed on the insulating body; an accommodating space for inserting and pulling the card holder is formed between the metal shell and the insulating body, the metal shell comprises a top wall and two side walls arranged on two opposite sides of the top wall, and the side walls are provided with accommodating spaces; move back card mechanism including move back the card and with move back the push rod of card linkage, move back the card install with rotatoryly in the roof, the push rod at least partly slide set up in accommodation space, its characterized in that: the push rod comprises a rear clamping groove and a rear convex portion for shielding the rear end of the rear clamping groove, the side wall is provided with a back-proof elastic sheet which is bent backwards and extends into the rear clamping groove, and the back-proof elastic sheet is backwards abutted against the rear convex portion.

2. The electronic card connector of claim 1, wherein: the rear convex part and the rear clamping groove are arranged at the top of the push rod.

3. The electronic card connector of claim 1, wherein: the bottom wall of the rear clamping groove is provided with a first guide surface which extends forwards and upwards and is used for guiding the anti-withdrawal elastic sheet to slide forwards.

4. The electronic card connector of claim 1, wherein: the rear convex part is provided with a second guide surface for guiding the anti-withdrawing elastic sheet to slide forwards into the rear clamping groove.

5. The electronic card connector of claim 1, wherein: the card withdrawing piece comprises a shaft center part, a first end part and a second end part, wherein the first end part and the second end part are located on two opposite sides of the shaft center part, the shaft center part is rotatably connected with the top wall, the push rod is provided with a front clamping groove and a front convex part, the front clamping groove is connected with the first end part in a lap joint mode, the front convex part is located in front of the front clamping groove, the front clamping groove is communicated with the rear clamping groove in the front-back mode, and the depth of the rear clamping groove is larger than that of the front clamping groove.

6. The electronic card connector of claim 5, wherein: the card withdrawing piece comprises a third end part which is closer to the second end part relative to the first end part, the connecting line of the first end part, the second end part and the third end part is in a triangular shape, and the card support is provided with a boss which is abutted against the third end part.

7. The electronic card connector of claim 5, wherein: the side wall comprises a front arm part, a rear arm part positioned behind the front arm part and a concave part between the front arm part and the rear arm part, and the first end part extends into the concave part and is overlapped with the push rod.

8. The electronic card connector of claim 7, wherein: the anti-withdrawal elastic sheet is formed by bending and extending downwards and backwards from the front edge of the rear arm part and is of an oblique line structure.

9. The electronic card connector of claim 5, wherein: the side wall comprises a first matching portion, a connecting portion and a second matching portion, the first matching portion extends downwards in a bending mode from the top wall, the connecting portion extends outwards in a bending mode from the bottom of the first matching portion, the second matching portion extends upwards in a bending mode from the connecting portion, a front arm portion and a rear arm portion extend towards the inner side in a bending mode are arranged at the top of the second matching portion, the front arm portion and the rear arm portion are spaced in the front-back mode, a concave portion is formed between the front arm portion and the rear arm portion, a containing space is formed between the first matching portion and the connecting portion, the second matching portion and the front arm portion and between the rear arm portion, the first end portion extends into the concave portion and is in lap joint with the push rod, and the anti-withdrawal elastic sheet is formed by bending and extending downwards and backwards from the rear arm portion.

10. The electronic card connector of claim 9, wherein: the front arm part extends inwards and then is fixed on the upper surface of the top wall, and the top wall is provided with a concave part for accommodating the card returning piece.