CN203850557U - Edge card connector with grounding shield - Google Patents

Abstract

The utility model discloses an edge card connector with grounding shield. The edge card connector comprises an insulation body, a conductive terminal, a lock fastener and a shielding housing. The shielding housing is a metal housing provided with a top surface, a left surface, a right surface and a back surface. A bending part bending inwardly and adjoined with the insulation body is arranged on the back surface of the shield housing. A clamping hole is arranged on the bending part. The conductive terminal is provided with a grounding terminal elastically clamped in the clamping hole and fixedly contacted with the clamping hole, hence electromagnetic interference is effectively prevented, particularly RFI is prevented. The edge card connector is made in small size, electromagnetic interference is prevented and electric connection is ensured to be stable.

Description

A kind of edge and connector of shielding with ground

Technical field

The utility model relates to a kind of electric connector of edge card.

Background technology

Existing edge and connector or size is larger, cannot meet the frivolous growth requirement of product, change small size as far as possible, cause being easily subject to electromagnetic interference, particularly be subject to great RFI (interference of Radio Frequency Interference less radio-frequency), affected the normal use of product.

Utility model content

For the edge and connector that overcomes prior art is easily subject to electromagnetic interference, the especially deficiency of RFI impact, the utility model provides a kind of edge and connector of the shielding with ground that can effectively shield and prevent RFI interference.

The utility model solves the technical scheme that its technical problem adopts:

A kind of edge and connector of shielding with ground, comprise the insulating body with terminal accommodation holes, be fixed on the conducting terminal in terminal accommodation holes, and be fixed on the snap close piece of insulating body both sides for the fixing external connected electronic card of snap close, on described insulating body, be also stamped shield shell, described shield shell is for having end face, left surface, the metal shell of right flank and trailing flank, on the trailing flank of described shield shell, be provided with the kink of the insulating body that bends inwards, on described kink, be provided with holding hole, on described conducting terminal, be provided with elastic card and be held in the earth terminal firmly contacting in holding hole and with holding hole.

As the version of preferred earth terminal, described earth terminal is the prong like with two elastic arms, two elastic arm ends have respectively guide ramp and stuck point, two elastic arms extend back and insert in holding hole through insulating body, and upper lower edge firm contact that stuck point is stuck in holding hole form earth shield.

As optional a kind of fixed form between shield shell and insulating body, described shield shell end face below be provided with cross section roughly L-shaped end towards the retaining sheet in front, on described insulating body, be provided with the support slot coordinating with retaining sheet, described support slot comprises and is arranged on the introduction part that guiding retaining sheet in insulating body top packs into from top to down, and is common to mutually fixed card and holds the groove of sheet with introduction part.

Described shield shell trailing flank is provided with towards front for being snapped in the fixed part of the corresponding hole of insulating body.

Further, in order to limit moving forward and backward of shield shell, the front end of described fixed part is provided with the lug boss for coordinating fastening.

Further, the junction of the end face of described shield shell, left surface, right flank and trailing flank is provided with level and smooth fillet.

In order to increase shielding properties, the left surface of described shield shell and right flank are bent to form respectively an extension to the inside.

The beneficial effects of the utility model are: be provided with shield shell, be fixed in insulating body, insulating body end face, left surface, right flank and trailing flank is coated, and the earth terminal on conducting terminal is contacted with shield shell, thereby form and effectively prevent electromagnetic interference, especially RFI, make edge and connector both can size be done littlely, be not easy to be again subject to electromagnetic interference, ensured the stable of electrical connection.

Brief description of the drawings

Below in conjunction with drawings and Examples, the utility model is further illustrated.

Fig. 1 is structure broken away view of the present utility model;

Fig. 2 is the partial structurtes schematic diagram at earth terminal place in the utility model;

Fig. 3 is the front view of Fig. 2;

Fig. 4 is insulating body of the present utility model and the schematic diagram that coordinates of shield shell;

Fig. 5 is vertical view of the present utility model;

Fig. 6 is the cutaway view of Fig. 5 along A-A line.

Embodiment

Referring to figs. 1 through Fig. 6, the edge and connector of a kind of shielding with ground of the present utility model, comprise the insulating body 1 with terminal accommodation holes 11, be fixed on the conducting terminal 2 in terminal accommodation holes 11, and be fixed on the snap close piece 3 of insulating body 1 both sides for the fixing external connected electronic card of snap close, conducting terminal 2 has two rows, between two rows, form a slit interface of receiving external connected electronic card, snap close piece 3 is fixed on insulating body 1, in the time that external connected electronic card inserts, snap close piece 3 fastens the afterbody of external connected electronic card.

On described insulating body 1, be also stamped shield shell 4, described shield shell 4 is for having the metal shell of end face, left surface, right flank and trailing flank, this metal shell can be totally enclosed form, also can be arranged to semi-enclosed form according to electronic equipment internal structure, can adjust flexibly according to electronic equipment internal circuit layout, thereby reach the object that prevents electromagnetic interference.On the trailing flank of described shield shell 4, be provided with the kink 42 of the insulating body 1 that bends inwards, on described kink 42, be provided with holding hole 45, on described conducting terminal 2, be provided with the earth terminal corresponding with holding hole 45 21, described earth terminal 21 is for having the prong like of two elastic arms, two elastic arm ends have respectively guide ramp 211 and stuck point 212, two elastic arms extend back and insert in holding hole 45 through insulating body 1, and upper lower edge firm contact that stuck point 212 is stuck in holding hole 45 form earth shield.

Conducting terminal 2 is contained in the terminal accommodation holes 11 of insulating body 1, has multiple earth terminals 21 in conducting terminal 2, is provided with four grounded terminal 21 in this embodiment, can adjust according to actual conditions the quantity of earth terminal 21.As Fig. 2, shown in Fig. 3, the conducting terminal 2 at earth terminal 21 places has a main part, main part extends to form forward the contact site 22 and the fixed part 23 that coordinate with external connected electronic card, the main part weld part 24 that extended back bottom, main part is also extended with two elastic arms up and down for clamping backward, elastic arm is fastened in the holding hole 45 in shield shell 4 kinks 42, the guide ramp 211 of two elastic arms is conducive to it and snaps in, stuck point 212 coordinates and is fixed and forms firm contact with the upper lower edge of holding hole 45, thereby form effective earth shield, prevent that RFI from disturbing.

As optional a kind of fixed form between shield shell 4 and insulating body 1, described shield shell 4 end faces belows be provided with cross section roughly L-shaped end towards the retaining sheet 41 in front, its trailing flank is provided with towards front the fixed part 44 of the corresponding hole for being snapped in insulating body 1, on described insulating body 1, be provided with the support slot 12 coordinating with retaining sheet 41, described support slot 12 comprises and is arranged on the introduction part that insulating body 1 top guiding retaining sheet 41 packs into from top to down, and pass to the groove of terminal accommodation holes 11 for fixing retaining sheet 41 from introduction part, the front end of described fixed part 44 is provided with the lug boss for coordinating fastening, moving forward and backward of restriction shield shell 4.When installation, shield shell 4 is packed into from top to bottom, retaining sheet 41 enters from the introduction part of support slot 12, then will before shield shell 4, push away, retaining sheet 41 snaps in groove, now the fixed part 44 of shield shell 4 is snapped in the corresponding hole of insulating body 1, thereby reaches the object of fixed mask housing 4.

Certainly, as other optional schemes, can screw and nut be set by punching and carry out screw threads for fastening, or clamping occlusion structure is set to shield shell 4 is effectively fixed on insulating body 1.

As optional execution mode, in order to facilitate further miniaturization, hommization, the junction of end face, left surface, right flank and the trailing flank of described shield shell 4 is provided with level and smooth fillet.

In order to increase shielding properties, the left surface of described shield shell 4 and right flank are bent to form respectively an extension 43 to the inside.

Certainly, the utility model, except above-mentioned execution mode, can also have other structural distortion, and these equivalent technical solutions also should be within its protection range.

Claims (7)

1. the edge and connector of a shielding with ground, comprise the insulating body (1) of band terminal accommodation holes (11), be fixed on the conducting terminal (2) in terminal accommodation holes (11), and be fixed on the snap close piece (3) of insulating body (1) both sides for the fixing external connected electronic card of snap close, it is characterized in that: on described insulating body (1), be also stamped shield shell (4), described shield shell (4) is for having end face, left surface, the metal shell of right flank and trailing flank, on the trailing flank of described shield shell (4), be provided with the kink (42) of the insulating body that bends inwards (1), on described kink (42), be provided with holding hole (45), on described conducting terminal (2), be provided with elastic card and be held in the earth terminal (21) firmly contacting in holding hole (45) and with holding hole (45).

2. the edge and connector of a kind of shielding with ground according to claim 1, it is characterized in that: described earth terminal (21) is for having the prong like of two elastic arms, two elastic arm ends have respectively guide ramp (211) and stuck point (212), two elastic arms extend back and insert in holding hole (45) through insulating body (1), and upper lower edge firm contact that stuck point (212) is stuck in holding hole (45) form earth shield.

3. the edge and connector of a kind of shielding with ground according to claim 1, it is characterized in that: described shield shell (4) end face below be provided with cross section roughly L-shaped end towards the retaining sheet (41) in front, on described insulating body (1), be provided with the support slot (12) coordinating with retaining sheet (41), described support slot (12) comprises and is arranged on the introduction part that insulating body (1) top guiding retaining sheet (41) packs into from top to down, and is common to mutually fixed card with introduction part and holds the groove of sheet (41).

4. the edge and connector of a kind of shielding with ground according to claim 3, is characterized in that: described shield shell (4) trailing flank is provided with towards front for being snapped in the fixed part (44) of the corresponding hole of insulating body (1).

5. the edge and connector of a kind of shielding with ground according to claim 4, is characterized in that: the front end of described fixed part (44) is provided with the lug boss for coordinating fastening.

6. according to the edge and connector of a kind of shielding with ground described in any one in claim 1-5, it is characterized in that: the junction of end face, left surface, right flank and the trailing flank of described shield shell (4) is provided with level and smooth fillet.

7. according to the edge and connector of a kind of shielding with ground described in any one in claim 1-5, it is characterized in that: the left surface of described shield shell (4) and right flank are bent to form respectively an extension (43) to the inside.