CN201352650Y - Card connector - Google Patents

Abstract

The utility model discloses a card connector, it includes an insulator, a plurality of terminals, moves back card mechanism and one and shields the casing. The insulating body is provided with a card inserting space and a plurality of terminal grooves; the terminals are respectively arranged in the terminal grooves; the card withdrawing mechanism is arranged at one side of the card inserting space and is provided with a sliding block which is arranged on the insulating body in a sliding way, and one end of the sliding block is provided with a hook part extending into the card inserting space; the shielding shell is coated on the insulating body and provided with an elastic sheet, the elastic sheet is arranged on the shielding shell and is positioned on one side opposite to the card withdrawing mechanism, the elastic sheet is provided with an extending part, a guiding part formed by the backward and inward arc-shaped extension of the tail end of the extending part and a butting part formed by the backward and inward inclined extension of the tail end of the guiding part, and the butting part extends into the card inserting space. The card connector of the utility model has the function of preventing the card from flying when the card is withdrawn.

Description

card connector

technical field

The utility model relates to a connector, in particular to a card connector.

Background technique

Electronic cards have been widely used in electronic products such as digital cameras and notebook computers to expand memory space and solve the problem of insufficient memory space.

Electronic cards usually need to be connected with electronic products through a card connector. In order to facilitate card withdrawal, most existing card connectors have a card withdrawal mechanism that utilizes the elastic force of a spring to realize the card withdrawal function. Notches to prevent the electronic card from flying off the card connector when ejected.

However, the buckle of the existing card connector is usually made of plastic material, and the buckle is easy to wear and fail under the condition of long-term use, which leads to the problem of flying cards when the electronic card is withdrawn.

Utility model content

The main purpose of the utility model is to overcome the shortcomings of the above-mentioned prior art and provide a card connector with reliable anti-flying card function and the function of guiding the electronic card when inserting the card.

In order to achieve the above purpose, the card connector provided by the present invention includes an insulating body, a plurality of terminals, a card ejecting mechanism and a shielding shell. The insulating body is provided with a card inserting space, and the insulating body is provided with a plurality of terminal slots. Several terminals are respectively installed in a terminal groove. The card ejecting mechanism is arranged on one side of the card inserting space, and the card ejecting mechanism has a sliding block, which is slidably arranged on the insulating body, and one end of the sliding block is provided with a hook extending into the card inserting space. The shielding shell is covered on the insulating body, and the shielding shell has an elastic piece. The elastic piece is arranged on the shielding shell and on the side opposite to the card ejecting mechanism. The elastic piece has an extension part and an end of the extension part. A guide portion formed by extending backward and inward in an arc shape, and an abutment portion formed by extending backward and inwardly from the end of the guide portion, the abutment portion protrudes into the card insertion space.

As mentioned above, when the card connector of the utility model is inserted, the guide part of the shrapnel acts as a guide to make it easier to insert the electronic card; Tight on the sliding block, so that the hook part of the card connector fits more tightly with the notch of the electronic card, so as to realize the function of preventing flying cards when the card is withdrawn.

Description of drawings

FIG. 1 is a partial perspective exploded view of the card connector of the present invention.

FIG. 2 is a perspective view of the card connector and the electronic card of the present invention.

FIG. 3 is a schematic diagram of a half-section of the shielding housing of the card connector of the present invention withdrawing from the electronic card.

The reference numerals of each element in the figure are explained as follows:

Insulation body 1 Card space 11

socket 12 terminal slot 13

Sliding space 14 Block 15

Limit post 16 Terminal 2

Fixed part 21 Contact part 22

Pin part 23 Card withdrawal mechanism 3

Sliding block 31 track curve groove 311

Hook 312 Elastic element 32

Guide rod 33 Shielding shell 4

Cover panel 41 Side panel 42

Card interface 43 Elastic pressing piece 44

Shrapnel 45 Extension 451

Guiding part 452 Reaching the top 453

Electronic Card 5 Notch 51

Detailed ways

In order to illustrate the technical content, structural features and the purpose and effect of the utility model in detail, the following will be described in detail in conjunction with the embodiments and accompanying drawings.

Please refer to FIG. 1 and FIG. 2 , the card connector of the present invention has an insulating body 1 , a plurality of terminals 2 , a card ejecting mechanism 3 and a shielding shell 4 .

Please continue to refer to FIG. 1 and FIG. 2 , the insulating body 1 is roughly in the shape of a rectangular block, and a card inserting space 11 for accommodating an electronic card 5 is recessed on it. The card inserting space 11 has a socket 12 at the front end. The insulating body 1 is provided with a plurality of terminal slots 13 , and the insulating body 1 is provided with a sliding space 14 on one side of the card insertion space 11 . A limiting post 16 protrudes from the rear side wall of the sliding space 14 . Several blocks 15 protrude from the outer walls of both sides of the insulating body 1 .

The terminal 2 is made of conductive metal material and is roughly in the shape of a strip. Each terminal 2 has a fixed part 21 and a contact part extending backward from the rear end of the fixed part 21 and inclined upward. 22 and a leg portion 23 formed by bending and extending the front end of the fixing portion 21 downward and then extending forward. The fixed part 21 of the terminal 2 is embedded and fixed in the terminal groove 13, and the contact part 22 of the terminal 2 extends into the card insertion space 11 to contact with the corresponding electrical contact on the electronic card 5 inserted into the space 11 to realize electrical contact. The pin portion 23 of the terminal 2 extends out of the bottom of the insulating body 1 to be soldered to the corresponding electrical contact on the circuit board.

The card ejection mechanism 3 is installed on the side of the card insertion space 11 of the insulating body 1 . The card ejection mechanism 3 includes a sliding block 31 , an elastic element 32 and a guide rod 33 . The sliding block 31 is slidably arranged in the sliding space 14, the sliding block 31 is an elongated block, the top surface of the sliding block 31 is formed with a track curve groove 311, and one end of the sliding block 31 is provided with a The hook portion 312. One end of the elastic element 32 is sleeved on the limit column 16, and the other end is against the sliding block 31. The limit column 16 is used to limit the range of movement of the elastic element 32, and the elastic element 32 can move the sliding block 31 forward. reset power. One end of the guide rod 33 is plugged and fixed on the insulating body 1, and the other end is movably fitted in the track curve groove 311 of the sliding block 31. The guide rod 33 can move in two stages in the track curve groove 311 to Realize the functions of card insertion and card withdrawal respectively.

The shielding case 4 has a cover plate 41 and two side plates 42 formed by extending downward from one side of the cover plate 41 respectively. Several card interfaces 43 are respectively provided on the two side plates 42, and the plurality of card interfaces 43 are connected to the insulating body 1 respectively. A clamping block 15 on the top is matched so that the shielding shell 4 is covered and fixed on the insulating body 1 . The cover plate 41 of the shield housing 4 is formed with a pressing piece groove (not shown in the figure) and an elastic pressing piece 44 extending downwards from an edge of the pressing piece groove, and the elastic pressing piece 44 is pressed against the guide. On the guide rod 33, the guide rod 33 can be stably fitted in the track curve groove 311. An elastic piece 45 is extended on the side plate 42 of the shielding case 4 opposite to the card ejecting mechanism 3. The elastic piece 45 includes an extension 451 formed by extending forward from the front end of the side plate 42. The end of the extension 451 is curved backward and inward. A guide portion 452 is formed in a shape extension, and the end of the guide portion 452 extends backwards and inwards obliquely to form a strip-shaped abutting top 453 , and the abutting top 453 extends into the card insertion space 11 .

Please refer to FIG. 1 and FIG. 2 , a notch 51 is provided on one side of the electronic card 5 involved in the card connector of the present invention. When the electronic card 5 is inserted into the card connector through the card connector socket 12 , the guide portion 452 of the shielding case 4 guides the electronic card 5 to make it easier to enter the card insertion space 11 . When the electronic card 5 enters the card insertion space 11, the hook portion 312 at one end of the sliding block 31 of the card ejecting mechanism 3 is immediately snapped into the notch 51 of the electronic card 5, so that the electronic card 5 can be fixed on the sliding block through the hook portion 312. On the block 31, at this time, the abutting portion 453 of the elastic piece 45 is abutted against the other side of the electronic card 5. When the electronic card 5 is inserted into the card insertion space 11 for positioning, the contacts on the electronic card 5 can be connected with the contact portions 22 of the terminals 2 correspondingly, so that the electronic card 5 can be connected with the card connector through the card connector. The circuit board is electrically connected.

Please refer to Fig. 3 , when the electronic card 5 is withdrawn, the electronic card 5 can be pushed along the direction of card insertion, and the electronic card 5 will immediately touch the push sliding block 31, so that one end of the guide rod 33 moves in the curved groove 311 of the track , the elastic element 32 generates a reset force on the sliding block 31 to move along the card ejecting direction, so that the sliding block 31 can drive the electronic card 5 to eject the card. In the gap 51 on one side of the electronic card 5, and the abutting portion 453 of the elastic piece 45 is abutted against the other side of the electronic card 5, so that the electronic card 5 is close to the sliding block 31, and the hook portion 312 of the sliding block 31 is in contact with the electronic card 5. The gap 51 of the card 5 fits more tightly, so that the function of preventing flying cards can be realized.

To sum up, the card connector of the present invention plays a guiding role when inserting the card, and the guide part 452 of the elastic piece 45 makes it easier to insert the electronic card 5. Make the electronic card 5 close to the sliding block 31 on the side of the electronic card 5, and the hook portion 312 of the sliding block 31 fits more tightly with the notch 51 of the electronic card 5, thereby realizing the function of preventing flying cards.

Claims (6)

1. A card connector, comprising an insulating body, some terminals, a card withdrawing mechanism and a shielding housing, the insulating body is provided with a card insertion space, the insulating body is provided with some terminal grooves, and some terminals are respectively installed in a In the terminal slot; the card ejecting mechanism is arranged on one side of the card insertion space, the card ejection mechanism has a sliding block, the sliding block is slidably arranged on the insulating body, and one end of the sliding block is provided with a protruding into the card insertion space The hook part; the shielding shell is covered on the insulating body; it is characterized in that: the shielding shell has a shrapnel, the shrapnel is arranged on the shielding shell and on the side opposite to the card ejecting mechanism, and the shrapnel has an extension part, a guide part formed by extending backward and inward from the end of the extension part in an arc shape, and an abutment part formed by extending backward and inwardly from the end of the guide part, and the abutment part extends into the card insertion space . 2 . The card connector as claimed in claim 1 , wherein a sliding space on one side of the card insertion space is provided on the insulating body, and the sliding block is slidably disposed in the sliding space. 3 . 3. The card connector according to claim 2, characterized in that: a limit post is protruded from the rear side wall of the sliding space, a track curve groove is formed on the sliding block, and the card ejection mechanism also has a Elastic element and a guide rod; one end of the elastic element is sleeved on the limit column, and the other end is against the sliding block; one end of the guide rod is fixed on the insulating body, and the other end is movably matched to the track of the sliding block in the curved groove. 4. The card connector according to claim 1, wherein the shielding housing has a cover plate and two side plates extending downward from one side of the cover plate, and the elastic piece is arranged on the side plate On the top, an elastic pressing piece is formed on the cover plate, and the elastic pressing piece is pressed against the guide rod. 5. The card connector as claimed in claim 4, wherein a plurality of card interfaces are respectively provided on the two side plates, and a plurality of card blocks corresponding to the card interfaces protrude from the outer walls of the two sides of the insulating body. Several card interfaces cooperate with a card block on the insulating body respectively. 6. The card connector according to claim 1, wherein the terminal has a fixing portion, a contact portion formed by extending backward from the rear end of the fixing portion and inclined upward, and a contact portion extending from the front end of the fixing portion to The pin part is formed by bending down and extending forward, the fixed part is embedded and fixed in the terminal groove, the contact part protrudes into the card insertion space, and the pin part protrudes out of the bottom of the insulating body.

Images