CN2805139Y

CN2805139Y - Earthing structure for card-reader connector

Info

Publication number: CN2805139Y
Application number: CN 200520005786
Authority: CN
Inventors: 李宪荣
Original assignee: Individual
Current assignee: Individual
Priority date: 2005-03-10
Filing date: 2005-03-10
Publication date: 2006-08-09
Anticipated expiration: 2015-03-10

Abstract

The outer lateral surface of an extension arm of a connector of the utility model is convexly provided with a plurality of convex buckles, buckling sheets are formed by bending both sides of a metal casing cover, and buckling grooves which are buckled with the convex buckles are arranged in penetration on the buckling sheets, causing the metal casing cover to be buckled and fixed on a plastic cement body. A plurality of contact terminals which can contact a memory card are formed by downwards extending the metal casing cover in a position corresponding to a slot; a plurality of grounding terminals which can contact a metal casing of a card reader. After the memory card is inserted into the slot, generated electromagnetic waves are led out by the metal casing of the card reader through the contact terminals and the grounding terminal of the metal casing cover.

Description

The ground structure of card-reading machine connector

Technical field

The utility model aims to provide a connector that can cooperate memory card to insert, so that this connector is had the ground structure of ground connection effect really, further to be reached the effect of anti-system Electromagnetic Interference by the ground connection effect of connector.

Background technology

Press, because electric circuit is when running, magnetic field in the electromagnetic environment that each circuit element constituted, electromagnetic wave will cause function frenzied, transmit mistake and the message condition of poor takes place, therefore in comparatively accurate electric circuit, how can cooperate the suitable demagnetization mechanism that imposes, to reduce the interference that electromagnetic wave was produced.

Again, generally the most common and the simplest demagnetization mechanism promptly is to utilize the ground connection effect to avoid forming in the circuit electromagnetic environment, when the laying of general electric circuit, can carry out setting of ground path in advance, to keep basic demagnetization mechanism; Moreover, when electric circuit need cooperate other to insert as during the extrapolation circuit use of memory card, it then must set firmly ground strip at the slot body of planting for memory card, is connect by ground strip and ground path, to reach the effect that the circuit of memory card is formed demagnetization mechanism again.

Be the ground structure of general common on the market memory card connector 1 as shown in Figure 1, it is to be equiped with plural terminal 11 in plastic cement main body 10 and plastic cement main body root edge, and can be fixedly welded on contact default on the circuit board 20 by each terminal 11 rear side, and each is extended with an adjutage 12 forward in plastic cement main body 10 both sides, then forming a slot 13 in

plastic cement body

10 and 12 of adjutages plugs for memory card, and respectively be equiped with a metal ground strip 14 and a guiding shell fragment 15 that contacts with ground strip 14 in adjutage 12 front ends, wherein ground strip 14 is to borrow its bottom to be connected with ground path 21 on the circuit board 20, after inserting when memory card, memory card is contacted with ground strip 14 by guiding shell fragment 15, and reaches the function of ground connection; Yet, when reality is used and since the metal ground strip 14 of both sides adjutage 12 and guiding shell fragment 15 be respectively by several independently part make, cause its step when assembling more complicated and job costs are higher, and do not meet market practicality and economy.

The utility model content

The purpose of this utility model provides a kind of connector that cooperates memory card to insert, so that this connector is had the ground structure of ground connection effect really, further to be reached the effect of anti-system Electromagnetic Interference by the ground connection effect of connector.

The ground structure of the utility model card-reading machine connector, the plastic cement main body of its connector and plastic cement main body root edge are equiped with the terminal of plural number, and can be fixedly welded on contact default on the circuit board by each terminal rear side, and each is extended with an adjutage forward in plastic cement main body both sides, then forms a slot and plug for memory card between plastic cement body and adjutage; Wherein: the lateral surface of this adjutage convexes with a plurality of protruding buttons, other has a metal-back to be placed on both sides to be bent with fastening piece, and the logical catching groove that is interlocked with protruding button that is provided with on the fastening piece, the metal cap is detained held and be fixed on the plastic cement body, and the metal cap corresponds to the slot place a plurality of contact terminals that can contact with memory card of extension downwards, and extend upward a plurality of earth terminals that can contact with the metal shell of card reader, after memory card inserts slot, via the contact terminal and the earth terminal of metal cap, and the electromagnetic wave that is produced is derived by the metal shell of card reader.

Description of drawings

Fig. 1 is the structure stereoscopic figure that card-reading machine connector is arranged for habit;

Fig. 2 is the STRUCTURE DECOMPOSITION figure for connector in the utility model;

Fig. 3 is the STRUCTURE DECOMPOSITION figure for card-reading machine connector in the utility model;

Fig. 4 is the structural representation that inserts slot for memory card in the utility model.

[figure number explanation]

1 connector, 10 plastic cement main bodys

11 terminals, 12 adjutages

121 guide grooves, 122 protruding buttons

13 slots, 14 ground strips

15 guiding shell fragments, 20 circuit boards

21 ground paths, 30 memory cards

40 caps, 41 fastening pieces

411 catching grooves, 42 contact terminals

43 earth terminals, 51 housings

511 reference columns, 60 screws

Embodiment

For the clear structure of the present utility model of your auditor is formed, and the overall operation mode, cooperate graphic being described as follows now:

The ground structure of the utility model card-reading machine connector, the basic structure of its connector 1 is formed as shown in Figures 2 and 3, it is to be equiped with plural terminal 11 in plastic cement main body 10 and plastic cement main body root edge, and can be fixedly welded on the default contact of circuit board 20 by each terminal 11 rear side, and each is extended with an adjutage 12 forward in plastic cement main body 10 both sides, adjutage 12 inboards are provided with guide groove 121, then form a slot 13 in

plastic cement body

10 and 12 of adjutages, memory card 30 is inserted in the slot 13 smoothly.

Focusing on of this case: the lateral surface of this adjutage 12 convexes with a plurality of protruding buttons 122, other has a metal cap 40 to be bent with fastening piece 41 in both sides, and the logical catching groove 411 that is interlocked with protruding button 122 that is provided with on the fastening piece 41, and metal cap 40 corresponds to slot 13 places, reach downwards simultaneously and be extended with a plurality of contact terminals 42 that can contact, and extend upward a plurality of earth terminals 43 that can contact with the metal shell 51 of card reader with memory card 30 to memory card plug-in card direction.

During overall package, utilize protruding button 122 to be interlocked earlier with catching groove 411, make metal cap 40 be detained and hold and be fixed on the plastic cement body 10, terminal 11 rear sides are fixedly welded on the default contact of circuit board 20, utilize screw 60 that circuit board 20 is locked on the default reference column 511 of card reader housing 51 again, the height of this reference column 511 can make the earth terminal 43 of metal cap 40 contact with housing 51 just, after memory card 30

inserts slot

13,30 of memory cards contact with contact terminal 42, and contact with housing 51 via earth terminal 43, as shown in Figure 4, the electromagnetic wave that is produced is derived by the housing 51 of card reader.

As mentioned above, the utility model provides the ground connection of a preferable card-reading machine connector, so, offer the application of novel patent in accordance with the law; Yet, above implementation and graphic shown in, be one of the utility model preferred embodiment, be not to limit to the utility model with this, be with, approximate with structure of the present utility model, device, feature etc. such as, identical, all should belong to creation purpose of the present utility model and claim in.

Claims

1, a kind of ground structure of card-reading machine connector, the plastic cement main body of its connector and plastic cement main body root edge are equiped with the terminal of plural number, and can be fixedly welded on contact default on the circuit board by each terminal rear side, and each is extended with an adjutage forward in plastic cement main body both sides, then forms a slot that supplies memory card to plug between plastic cement body and adjutage; It is characterized in that:

The lateral surface of this adjutage convexes with a plurality of protruding buttons, other has a metal-back to be placed on both sides to be bent with fastening piece, and be provided with the catching groove that is interlocked with protruding button on the fastening piece thoroughly, the metal cap is detained held and be fixed on the plastic cement body, and the metal cap corresponds to the slot place a plurality of contact terminals that can contact with memory card of extension downwards, and extends upward a plurality of earth terminals that can contact with the metal shell of card reader.

2, the ground structure of card-reading machine connector according to claim 1 is characterized in that: this contact terminal is that the end by metal shell extends toward memory card plug-in card direction.

3, the ground structure of card-reading machine connector according to claim 1 is characterized in that: this adjutage inboard is provided with and makes memory card be inserted guide groove in the slot smoothly.