CN2364582Y - Electronic card arrangement - Google Patents

Abstract

The utility model relates to an electronic card device. Two end edges of an electric connector connected with a plate edge on one side of a circuit base plate inside the electronic card are respectively provided with a grounding device. The two grounding devices are integrally fixedly arranged on an insulating body of the electric connector and are respectively provided with a clamping part which can clamp and contact conductive terminals of the electric connector and a connecting part which is directly conductive with each of two cover plates on outer sides of the electronic card in a connecting way. Consequently, the two cover plates on the outer sides achieve electrical communication with grounding terminals of the electric connector so that static charges on the two cover plates can be successfully removed to obtain a better shielding effect.

Description

The electronic cards device

The utility model is a kind of electronic cards device, and it is convenient that this electronic cards device has assembling, need not change the earthing device of board circuit design, makes electronic cards ground connection smoothly by it.

Along with the progress that science and technology is maked rapid progress, the volume of computer is more and more littler, and performance is but become better and better.Notebook computer particularly, it can utilize the mode of the grafting electronic cards electronic cards of PCMCIA specification (as meet) to reach to expand memory body, increase the purpose that different output/input functions and grafting hard disc etc. are strengthened the property.And along with rolling up that signal transmits, the speed of transmission also rises significantly.For the signal that prevents to transmit is interfered, general electronic cards shell is made with metal mostly, with the earthing of casing dredging the electrostatic charge on it, thereby internal circuit board is played a shielding action.The prior art relevant with the utility model discloses as the 5th, 537, No. 294 patents of the U.S., carries out ground connection usually in the following manner.See also Fig. 1 and Fig. 2 (not representing balustrade deching among Fig. 1), electronic cards comprises circuit substrate 1, electric connector 2, brace 3, upper cover plate 4 and lower cover 5.Wherein, be laid with the electronic component and the circuit (not shown) that reach the predetermined effect of electronic cards on the circuit substrate 1, each correspondence on the limit, two opposite sides of this circuit substrate 1 be provided with a contact mat 8, two contact mats 8 can be respectively by a circuit trace 7 with circuit substrate 1 plate edge on electric connector 2 terminal supportors 6 that engaged constitute electrical communication.On the position of these contact mats 8, engage respectively a connecting piece 3 is arranged, each brace 3 respectively all up and down cover plate 4,5 directions extend a contact flat spring 31, make the upper and lower cover plate 4,5 of tool shield effectiveness be able to obtain suitable ground connection approach by it with contact mat 8,6 conductings of electric connector 2 terminal supportors.These above-mentioned common electronics cards are in order to realize the shielding of whole electronic cards and the ground connection of two cover plates; must be at the contact mat of circuit substrate two braces of burn-oning; though can reach the effect of conducting ground connection; but owing to imposing the operation that welding has increased manufacturing and winding to this two brace; and the situation of failure welding takes place in welding manner regular meeting, influences the reliability of ground connection approach easily.In addition, welding two braces and member such as contact mat together can take certain area and space on the circuit substrate, is unfavorable for making full use of the confined space of circuit substrate undoubtedly.

The purpose of this utility model is: a kind of electronic cards device with improvement earthing device is provided, it can be simplified the dependency structure of electronic cards and assembling procedure and can reach the effect that makes electronic cards ground connection equally, and reliable and stable and can save the usable area that takies circuit substrate during its earthing device ground connection.

According to above-mentioned purpose, the utility model includes circuit substrate, electric connector, cover plate and earthing device up and down.Wherein electric connector includes insulating body, conducting terminal and earth terminal.This insulating body inside is provided with the cavity of several definite shapes, the part of conducting terminal, earth terminal and earthing device is installed in the cavity of insulating body, another part then protrudes outside insulating body, and the appropriate position offers slotted eye on insulating body.It is characterized in that: earthing device is fixed on the insulating body slotted eye of electric connector, it is provided with curved Yangjing and is attached to the connecting portion on the insulating body and the clamping part of butt conducting terminal, wherein connecting portion can constitute electrical path with the upper and lower cover plate overlap joint of electronic cards respectively, the earth terminal that the clamping part of earthing device then can be taken advantage of a situation when being plugged in the cavity of insulating body with electric connector connects, thereby makes whole ground path can reach the purpose of ground connection by the smooth and easy conducting of earthing device.

Compared with prior art, the utility model advantage is: this electronic cards device has the earthing device through improvement, this earthing device is to utilize the winding of snapping mode, thereby simplifies the dependency structure of electronic cards and assembly program and can reach the effect that makes electronic cards ground connection equally; In addition, reliable and stable and can save the usable area that takies circuit substrate during this earthing device ground connection.

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

Fig. 1 is the top view of existing electronic cards circuit substrate and electric connector.

Fig. 2 is the sectional elevation of existing electronic cards.

Fig. 3 is a three-dimensional exploded view of the present utility model.

Fig. 4 is the local amplification stereogram of the utility model electric connector.

Fig. 5 is the cutaway view of the utility model along Fig. 3 A-A line direction.

Fig. 6 is another angle stereogram of electric connector of the present utility model.

See also Fig. 3, the utility model comprises members such as electric connector 10, upper cover plate 21, lower cover 22, support 23, circuit substrate 24 and earthing device 26.Wherein electric connector 10 includes insulating body 20 and several conducting terminals 25, be provided with the cavity 200 (consulting Fig. 5) of several tool definite shapes and perforation insulating body in insulating body 20 inside, so as to accommodating conducting terminal 25, simultaneously on relying on the side surface of circuit substrate winding side, insulating body is formed with the hole 201 (consulting Fig. 4) that two rows communicate with these cavitys 200, and in the hole 202 that insulating body also has on respect to the another side of this side surface two rows to communicate with cavity 200, the stitch of the electronic cards electric connector (not shown) of butt joint can insert thus and connect with conducting terminal 25 and reach and the electronic cards purpose of connecting.In addition, the place, two ends that relies on the side surface of circuit substrate at insulating body respectively offers a slotted eye 27, and this slotted eye 27 is in order to settle earthing device 26 (being detailed later).Conducting terminal 25 has resilient engagement end 250 and contact jaw 251, its resilient engagement end 250 is protruded out outside insulating body 20 by the hole 201 of insulating body 20, in order to circuit substrate 24 winding sides on the pad 241 that is provided with overlap mutually, and the resilient engagement end 250 that protrudes respectively on 20 liang of rounds 201 of insulating body goes to upper and lower the clamping shape, thereby can be with the side fixing and the welding in addition of aforementioned circuit substrate 24.And contact jaw 251 is installed in insulating body 20 cavitys 200, and the stitch of butt joint electric connector overlaps with these contact jaws 251 mutually by 202 backs, hole of insulating body 20, electrically connects and electronic cards and external circuit are constituted.In addition, support 23 is arranged on the edge of circuit substrate 24, it can be assisted 24 groups of solid one of upper and lower cover plate 21,22 and circuit substrate, and make upper and lower cover plate can one with electric connector 10 fixing in addition, thereby can improve the bond stability of electric connector 10 and circuit substrate 24.

See also Fig. 4 and Fig. 5, earthing device 26 as shown in the figure is integrated metalworks, it comprises with the solid fixed part 262 on insulating body 20 of interference effect group, fixed part 262 both ends are extended with clamping part 260 by two connecting portions, 261 extending ends towards relative direction of closing bending to the connecting portion 261 of the same side vertical extent suitable length since then.In the time of in fixed part 262 inserts and organizes solid slotted eye 27 at insulating body 20, the connecting portion 261 at its two ends will against and be flattened on the two sides of being abutted against upper and lower cover plate 21,22 on the insulating body 20, two connecting portions 261 are connected on two cover plates 21,22 in the lump constitute to electrically connect.260 of clamping parts as for earthing device 26 will bend close from two connecting portions 261 mutually, and borrow its clamping elastic force and with the outermost conducting terminal 25 in insulating body 20 two ends connect (consulting Fig. 5 and Fig. 6), these conducting terminals 25 are made as the grounded circuit of electronic cards and electric connector 10 thereof usually, thereby make earthing device 26 have the function of ground connection.When circuit substrate 24 and electric connector 10 are connected to a time-out, the conducting terminal 25 that aforementioned electric connector 10 is set at grounded circuit also can be provided as the ground connection approach of circuit substrate 24.Because on metal, lower cover 21, the effect that the signal that 22 circuit substrates 24 with the electronic cards of preventing are transmitted is interfered, therefore, after the fixed part 262 of earthing device 26 inserts insulating body 20, on its connecting portion 261, lower surface will with insulating body 20 on, lower surface is located respectively at grade, when making upper cover plate 21 and lower cover 22 cover insulating body 20 both sides of circuit substrate 24 and electric connector 10, on, lower cover 21,22 all can overlap mutually with the connecting portion 261 of earthing device 26, like this, just can make, lower cover 21,22 by earthing device 26, the terminal of electric connector 10 and reach the effect of ground connection.

Claims (5)

1. electronic cards device, it includes circuit substrate, electric connector, cover plate and earthing device, it is microscler tabular that this circuit substrate is, the electronic component and the circuit trace of the suitable function of tool are set on its relative biside plate face, and be provided with in a row and the circuit pad that links to each other with circuit trace in plate side appropriate position, and being installed in circuit substrate, electric connector is provided with on the plate side of circuit pad, it includes insulating body, conducting terminal and contact terminal, relies at insulating body on the appropriate location of side of circuit substrate and is provided with slotted eye; Cover plate is the plate-shape metal that cooperation and lid cover electric substrate and tool function of shielding; It is characterized in that: earthing device is fixed on the insulating body slotted eye of electric connector, which is provided with curved Yangjing is attached on the insulating body and with cover plate winding one the time, can contact with cover plate and form the connecting portion of grounded circuit and the clamping part of butt conducting terminal with terminal and circuit substrate.

2. electronic cards device as claimed in claim 1, it is characterized in that: the metalwork that described earthing device is formed in one, it has with the solid fixed part in the insulating body slotted eye of interference effect group, connecting portion from from these fixed part both ends to the same side vertical extent suitable length, and be extended with clamping part towards relative direction of closing bending by the connecting portion extending end.

3. electronic cards device as claimed in claim 2 is characterized in that: the connecting portion of described earthing device is in the same side of fixed part and resultant by two ends vertical extent one distance of fixed part.

4. electronic cards device as claimed in claim 3 is characterized in that: the clamping part of described earthing device be by the end of connecting portion towards relatively oblique approaching away from the direction of insulating body, and be folded to horizontal direction and extend certain-length being close to a certain degree palintrope.

5. electronic cards device as claimed in claim 1 is characterized in that: described electronic cards device includes a support, and it is roughly the quadrangle on a scarce limit, locates the inside respectively recess that forms certain width near lacking the limit in two parallel arms of this support.

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