CN107069329B

CN107069329B - Electronic card connector

Info

Publication number: CN107069329B
Application number: CN201710264814.XA
Authority: CN
Inventors: 朱昭晖; 郭建刚; 王柯; 周建波
Original assignee: Qidong Qianshuo Electronic Co Ltd
Current assignee: Qidong Qianshuo Electronic Co Ltd
Priority date: 2017-04-20
Filing date: 2017-04-20
Publication date: 2023-03-14
Anticipated expiration: 2037-04-20
Also published as: CN107069329A

Abstract

The invention discloses an electronic card connector which is used for inserting and pulling a card support with lock catch grooves on two side surfaces and comprises an insulating body, a conductive terminal and a metal shell, wherein the insulating body or the metal shell is provided with a slot for inserting and pulling the card support, the conductive terminal is provided with a contact part extending into the slot and a welding part extending out of the insulating body, the outer side surface of the card support is provided with a lock catch groove, the metal shell is coated on the outer side of the insulating body, the metal shell is provided with a spring sheet, a plastic lock catch block positioned in the slot is fixed on the spring sheet and used for being locked in the lock catch groove of the card support, and when the card support is inserted and pulled, the lock catch block and the card support are subjected to interference friction, so that the spring sheet can be prevented from scraping the card support, the abrasion of the card support is reduced, the moving smoothness of the card support is improved, and the inserting and pulling hand feeling is improved.

Description

Electronic card connector

Technical Field

The present invention relates to an electronic card connector, and more particularly, to an electronic card connector having a locking member.

Background

Generally, an electronic card connector is inserted into and pulled out from an electronic card connector by using a card holder to hold an electronic card with a small volume.

The related prior art can refer to chinese utility model patent publication No. 204966746 and disclose an electronic card connector, it includes insulator, conductive terminal and metal casing, metal casing includes roof, from the roof about both ends downwardly bent the both sides wall that extends and be located roof and the slot between the both sides wall, the slot supplies the card to hold in the palm the plug, the card holds in the palm about the side be equipped with locking groove, conductive terminal insert molding on insulator, conductive terminal has the contact site that is located the slot and extends insulator's welding part. The two side walls are respectively provided with a linear elastic sheet with a broken top wall, the middle part of the elastic sheet is provided with a locking sheet which is bent and is bent towards the inside of the slot to be protruded, when the card support is placed into the slot to achieve positioning, the locking sheet is locked in the locking groove to lock the card support, so that the card support is prevented from loosening, and the stable and reliable electrical connection between the electronic card and the conductive terminal is ensured.

The above-mentioned electronic card connector has the following disadvantages: the card holds in the palm the plug in-process, and the locking plate can hold in the palm the scraping to the card with the card support lateral surface interference friction, leads to the card to hold in the palm and takes place wearing and tearing, has influenced the smooth and easy degree that the card held in the palm the removal simultaneously, leads to the plug to feel not good.

In view of the above-mentioned shortcomings, there is a need for an improved electronic card connector.

Disclosure of Invention

The present invention provides an electronic card connector with reduced card holder wear and improved insertion/extraction hand feeling.

In order to solve the technical problems, the technical scheme of the invention is as follows: an electronic card connector is used for inserting and pulling a card holder with lock catch grooves on two side faces and comprises an insulating body, conductive terminals and a metal shell, wherein the metal shell and the insulating body form a slot for inserting and pulling the card holder; the metal shell is provided with an elastic sheet communicated with the slot, and a plastic locking block positioned in the slot is fixed on the elastic sheet and used for being locked in the locking groove of the card support.

The invention is further improved as follows: the lock catch block is integrally formed on the elastic sheet.

The invention is further improved as follows: the elastic sheet is formed by extending along the front-back direction, the elastic sheet comprises a front end part, a rear end part and a middle part connecting the front end part and the rear end part, at least one of the front end part and the rear end part is integrally connected with the metal shell, and the lock catch block is fixed on the middle part.

The invention is further improved as follows: the middle part is an arc-shaped sheet body protruding inwards, the front end part and the rear end part are located in the same vertical plane, the front end of the lock catch block is narrow, the rear end of the lock catch block is wide, and the inner side of the lock catch block is further provided with an inclined surface used for guiding the card support to move back and forth.

The invention is further improved as follows: the metal shell comprises a top wall covering the top of the slot, and the front end part or the rear end part is vertically connected with the top wall.

The invention is further improved as follows: the metal shell comprises a first side wall and a second side wall which are bent downwards and extend from the left end and the right end of the top wall, the elastic sheets and the lock catch blocks are respectively arranged on the left side and the right side of the slot in a pair mode, one of the elastic sheets is manufactured by downwards punching the top wall and is spaced from the first side wall left and right, and the top wall is provided with an opening for forming the elastic sheet.

The invention is further improved as follows: the second side wall is coplanar with the other spring plate, and the second side wall is provided with notches positioned in the front and the back of the other spring plate, so that the second side wall is disconnected with the other spring plate.

The invention is further improved as follows: the insulating body comprises a first insulator, a second insulator and a third insulator which are arranged from front to back, the conductive terminal comprises a first terminal, a second terminal and a third terminal, the first insulator and the first terminal define a first terminal seat, the second insulator and the second terminal integrally define a second terminal seat, the third insulator and the third terminal define a third terminal seat, and the first insulator, the second insulator and the third terminal seat are assembled with the metal shell after being installed on the circuit board.

The invention is further improved as follows: the electronic card connector further comprises a card withdrawing mechanism, the card withdrawing mechanism is provided with a crank and a push rod which is matched with the crank to actuate, the crank is provided with a round hole, the insulating body is further provided with a fourth insulator positioned at the rear side of the slot, the conductive terminal further comprises a detection terminal, the fourth insulator and the detection terminal define a fourth terminal seat, the third insulator is provided with a rotating shaft matched with the round hole, and the push rod is assembled on the metal shell.

The invention is further improved as follows: the metal shell is provided with a top wall and a first side wall which is bent downwards and extends from one end of the top wall, a lug which is bent downwards and extends and the elastic sheet are arranged on the top wall, the lug and the elastic sheet are located on the inner side of the first side wall, but the lug is closer to the first side wall than the elastic sheet, and the push rod is located between the lug and the first side wall and slides forwards and backwards.

The invention is further improved as follows: the shell fragment forms along the extending of fore-and-aft direction, the shell fragment includes preceding tip, rear end portion and connects the intermediate part of preceding tip and rear end portion, preceding tip links to each other with metal casing is integrative respectively with the rear end portion, and the intermediate part has a broken groove, and above-mentioned hasp piece is fixed in on the broken groove of intermediate part, links together the intermediate part is integrative.

Compared with the prior art, the invention has the following beneficial effects: be fixed with the hasp piece that is located the slot on the shell fragment of metal casing for lock in the hasp recess that the card held in the palm, when the plug was held in the palm to the card, the hasp piece held in the palm with the card and interferes the friction, can prevent that the shell fragment from holding in the palm the card and scraping, reduced the wearing and tearing that the card held in the palm, improve the smooth and easy degree that the card held in the palm the removal simultaneously, improve the plug and feel.

Drawings

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

Fig. 2 is an enlarged view within a circle of fig. 1.

FIG. 3 is a perspective view of the electronic card connector of the present invention.

Fig. 4 is an exploded perspective view of the electronic card connector of the present invention.

FIG. 5 is a perspective view of the metal shell and the card ejecting mechanism of the electronic card connector of the present invention assembled together.

FIG. 6 is a perspective view of the card holder of the electronic card connector of the present invention.

Detailed Description

The invention is further illustrated with reference to the following figures and examples.

Referring to fig. 1 to 6, the present invention provides an electronic card connector 100, wherein the electronic card connector 100 can be soldered to a circuit board (not shown) and used for inserting and pulling a card holder 200, and the card holder 200 has locking grooves 205 on both left and right sides. In the present embodiment, the electronic card connector 100 includes an insulative housing, a plurality of conductive terminals inserted and formed on the insulative housing, a metal shell 30 covering the insulative housing, and a card ejecting mechanism (not shown), wherein the insulative housing includes a first insulator 11, a second insulator 12, a third insulator 13, and a fourth insulator sequentially arranged from front to back, and the conductive terminals include a first terminal 21, a second terminal 22, a third terminal 23, and a detecting terminal 24.

The first insulator 11 and the first terminal 21 are injection molded to form a first terminal base 110, the second insulator 12 and the second terminal 22 are injection molded to form a second terminal base 120, the third insulator 13 and the third terminal 23 are injection molded to form a third terminal base 130, the fourth insulator and the detecting terminal 24 are injection molded to form a fourth terminal base 140, and the fourth insulator is provided with a vertical rotating shaft 142.

The first, second and third

insulating bodies

11, 12 and 13 are formed with slots 15 on the upper side for inserting and extracting the card holder 200, and the fourth insulating body is located on the rear side of the slots 15.

The first terminal 21, the second terminal 22 and the third terminal 23 respectively have

contact portions

211, 221 and 231 protruding upward into the insertion slot 15 and soldering

portions

212, 222 and 232 extending out of the insulative body for soldering to the circuit board. The detecting terminal 24 has a resilient arm 241 projecting forward into the slot 15 and a soldering portion 242 extending backward out of the insulating body.

The metal shell 30 includes a top wall 33, a first side wall 31 and a second side wall 32 bent and extended downward from the left and right ends of the top wall 33, and two elastic pieces 34 stamped and formed downward from the top wall 33, the top wall 33 covers the top of the slot 15, the first and

second side walls

31, 33 surround the left and right sides of the slot 15, the two elastic pieces 34 are located on the left and right sides of the slot 15, each elastic piece 34 extends in the front-back direction and includes a front end portion 341, a rear end portion 342, and an intermediate portion 343 connecting the front end portion 341 and the rear end portion 342, the front end portion 341 and the rear end portion 342 are located in the same vertical plane, the upper edges of the two are vertically connected with the top wall 33, the intermediate portion 343 is an arc-shaped sheet protruding inward, one of the elastic pieces 34 is located inside the first side wall 31, is spaced from the left and right of the first side wall 31, and is stamped and formed downward from the inside the top wall 33, and the top wall 33 has an opening 331 for forming the one of the elastic piece 34. The top wall 33 is punched with a tab 332 extending vertically downward, and the tab 332 is also located inside the first side wall 31, and is offset forward and backward from the one resilient piece 34 and closer to the first side wall 31 than the one resilient piece 34. The other spring piece 34 is coplanar with the second side wall 32, and the second side wall 32 has a notch 321 located in front and back of the other spring piece 34, so that the second side wall 32 is disconnected from the other spring piece 34.

The middle part 343 of each elastic sheet 34 is coated with a plastic lock catch block 35, the front end of the lock catch block 35 is narrow, the rear end of the lock catch block 35 is wide, the lock catch block 35 is located in the slot 15 and can move left and right along with the elastic sheet 34, and the lock catch block 35 is provided with an inclined surface 350 facing the inside and the front.

The card withdrawing mechanism comprises a crank 41 and a push rod 42 cooperating with the crank 41, the crank 41 is provided with a circular hole 410 for inserting the fourth insulator rotating shaft 142, and the push rod 42 comprises a main body 421 and a pressing part 422 bent and extended from the front end of the main body 422 to the outside. The crank 41 has a pushing end 411 and a mating end 412 opposite to each other, the pushing end 411 protrudes forward into the slot 15 to push the card holder 200 forward out of the card slot 15, the main body 422 has a notch 423 overlapping the mating end 412, the main body 422 is positioned between the protruding piece 332 and the first sidewall 31 of the metal shell 30 to slide back and forth, but can move back and forth relative to the metal shell 30.

When the electronic card connector 100 of the present invention is assembled, firstly, the push rod 42 of the card withdrawing mechanism is installed backward on the metal housing 30, secondly, the crank 41 of the card withdrawing mechanism is installed on the fourth terminal block 140, secondly, the fourth terminal block 140 is assembled upward on the metal housing 30, secondly, the first, second, and

third terminal blocks

110, 120, 130 are respectively welded on the circuit board, and finally, the metal housing 30 together with the fourth terminal block 140 is installed on the circuit board, the metal housing 30 is wrapped outside the first, second, third, and

fourth terminal blocks

110, 120, 130, 140, and the assembly is completed.

When the card support 200 is inserted into the slot 15, the inclined surface 350 of the locking block 35 guides the card support 200 to move, so that the insertion force is reduced, the card support 200 presses the locking block 35 against the elastic force of the elastic sheet 34, the card support moves outwards until the card support 200 is inserted into the final position, the locking block 35 returns inwards by the elastic force of the elastic sheet 34, and finally the card support 200 is locked in the locking groove 205, so that the card support 200 is fixed, and the card support 200 is prevented from being loosened.

According to the electronic card connector 100, the locking block 35 is arranged on the elastic sheet 34, the locking block 35 is made of plastic materials, when the card holder 200 is inserted and pulled out, the locking block 35 and the card holder 200 are subjected to interference friction, the elastic sheet 34 can be prevented from scraping the card holder 200, the abrasion of the card holder 200 is reduced, meanwhile, the moving smoothness of the card holder 200 is improved, and the inserting and pulling hand feeling is improved.

Certainly, the middle portion 343 of the elastic sheet 34 forms a broken groove, and the middle portion is divided into two parts, and the front end portion and the rear end portion are respectively connected with the metal shell integrally, and are fixed on the broken groove of the middle portion through the locking block 35, and the middle portion is connected integrally, so that the elasticity of the middle portion of the elastic sheet can be increased, and the locking block and the clamping holder can be better matched.

The present invention is not limited to the above-described embodiments, and those skilled in the art will be able to make various modifications without creative efforts from the above-described conception, and fall within the scope of the present invention.

Claims

1. An electronic card connector is used for inserting and pulling a card holder with lock catch grooves on two side faces and comprises an insulating body, a conductive terminal, a metal shell and a card withdrawing mechanism, wherein the metal shell and the insulating body form a slot for inserting and pulling the card holder; the metal casing has the communicating shell fragment with slot, be fixed with the plastic hasp piece that is located the slot on the shell fragment for lock in the hasp recess that the card held in the palm, move back card mechanism and have the crank and with the push rod of crank cooperation action, the crank is equipped with the round hole, the push rod equipment is on metal casing, its characterized in that: the insulating body comprises a first insulator, a second insulator, a third insulator and a fourth insulator which are sequentially arranged from front to back, the conductive terminal comprises a first terminal, a second terminal, a third terminal and a detection terminal, the first insulator and the first terminal define a first terminal seat, the second insulator and the second terminal define a second terminal seat, the third insulator and the third terminal define a third terminal seat, the fourth insulator is located on the rear side of the slot, the fourth insulator and the detection terminal define a fourth terminal seat, and the fourth insulator is provided with a rotating shaft matched with the round hole.

2. The electronic card connector of claim 1, wherein: the lock catch block is integrally formed on the elastic sheet.

3. The electronic card connector of claim 1, wherein: the elastic sheet is formed by extending along the front-back direction, the elastic sheet comprises a front end part, a rear end part and a middle part connecting the front end part and the rear end part, at least one of the front end part and the rear end part is integrally connected with the metal shell, and the lock catch block is fixed on the middle part.

4. The electronic card connector of claim 3, wherein: the middle part is an arc-shaped sheet body protruding inwards, the front end part and the rear end part are positioned in the same vertical plane, the front end of the lock catch block is narrow, the rear end of the lock catch block is wide, and an inclined surface used for guiding the card support to move back and forth is further arranged on the inner side of the lock catch block.

5. The electronic card connector of claim 3, wherein: the metal shell comprises a top wall covering the top of the slot, and the front end part or the rear end part is vertically connected with the top wall.

6. The electronic card connector of claim 5, wherein: the metal shell comprises a first side wall and a second side wall which are bent downwards and extend from the left end and the right end of the top wall, the elastic sheets and the lock catch blocks are respectively arranged on the left side and the right side of the slot in a pair mode, one of the elastic sheets is manufactured by downwards punching the top wall and is spaced from the first side wall left and right, and the top wall is provided with an opening for forming the elastic sheet.

7. The electronic card connector of claim 6, wherein: the second side wall is coplanar with the other spring plate, and the second side wall is provided with notches positioned in the front and the back of the other spring plate, so that the second side wall is disconnected with the other spring plate.

8. The electronic card connector of claim 1, wherein: the first, second and third terminal bases are assembled with the metal shell after being mounted on the circuit board.

9. The electronic card connector of claim 1, wherein: the metal shell is provided with a top wall and a first side wall which is bent downwards and extends from one end of the top wall, a lug and the elastic sheet which are bent downwards and extend are arranged on the top wall, the lug and the elastic sheet are located on the inner side of the first side wall, the lug is closer to the first side wall than the elastic sheet, and the push rod is located between the lug and the first side wall and slides forwards and backwards.

10. The electronic card connector of claim 1, wherein: the shell fragment forms along the extending of fore-and-aft direction, the shell fragment includes preceding tip, rear end portion and connects the intermediate part of preceding tip and rear end portion, preceding tip links to each other with metal casing is integrative respectively with the rear end portion, and the intermediate part has a broken groove, and above-mentioned hasp piece is fixed in on the broken groove of intermediate part, links together the intermediate part is integrative.