CN214225958U - Smart card - Google Patents

Abstract

The utility model relates to a button function technical field provides a smart card, including the base plate and locate the inboard button structure of base plate, the smart card is still including the connection structure who is used for filling the clearance between button structure and the base plate, and connection structure's one end is connected in button structure, and connection structure's the other end is connected in the base plate. Through set up connection structure between button structure and base plate, fill the clearance between button structure and the base plate, at encapsulating lamination in-process, effectually avoided getting into glue between button structure and the base plate, thereby when pressing the button position in the base plate outside of smart card, the base plate of smart card can be through connection structure direct extrusion button structure in order to accomplish the key operation, the use of button structure is felt better, the glue that does not have the encapsulating production between base plate and the button structure influences, the effectual normal use who guarantees the button function.

Description

Smart card

Technical Field

The utility model relates to a button technical field especially provides a smart card.

Background

At present, a printed circuit board is arranged in the smart card with keys, and a metal dome is fixed on the printed circuit board. The function of the key is realized by pressing the outer surface of the smart card to contact and press the dome sheet.

The smart card of taking the button is at the encapsulating lamination in-process, because do not fix a position fixedly between metal dome and the base plate as the button use, at the smart card lamination in-process, the pressure ratio that glue received is great, and glue gets into easily between metal dome and the base plate, leads to the button to feel than poor or not have the button and feels, the problem that the button function can't be realized.

SUMMERY OF THE UTILITY MODEL

The utility model aims at providing a smart card aims at solving the current problem that the smart card button of taking the button is felt relatively poor or the button function can't be realized.

In order to achieve the above object, the utility model adopts the following technical scheme:

the utility model provides a smart card, including the base plate and locate the inboard button structure of base plate, smart card is still including the connection structure who is used for filling the clearance between button structure and the base plate, and connection structure's one end is connected in button structure, and connection structure's the other end is connected in the base plate.

The utility model has the advantages that: the utility model provides a smart card, through set up connection structure between button structure and base plate, fill the clearance between button structure and the base plate, at the encapsulating lamination in-process, effectually entering glue between button structure and the base plate has been avoided, thereby when the button position in the base plate outside of pressing the smart card, the base plate of smart card can directly extrude the button structure in order to accomplish the key operation through connection structure, the use of button structure is felt betterly, the glue that does not have the encapsulating production between base plate and the button structure influences, the effectual normal use who guarantees the button function.

In one embodiment, the connection structure includes a fixing portion surrounding the key structure and a plug ring body fixedly disposed on a side of the fixing portion away from the key structure, the substrate is provided with a plug ring groove in cooperation with the plug ring body, and the plug ring body is inserted into the plug ring groove.

Through adopting foretell technical scheme, locate button structure's periphery with connection structure's fixed part ring, make connection structure install on button structure, insert connection structure's grafting ring body simultaneously and establish in the plug-in groove, make connection structure connect substrate and button structure simultaneously, when the button position in the base plate outside of pressing the smart card, button structure can be pressed through connection structure to the base plate of smart card, avoid glue to get into between base plate and the button structure simultaneously, the effectual use that has guaranteed button structure is felt and button structure's normal use.

In one embodiment, a reverse-buckling claw is arranged at one end of the plug ring body, which is far away from the fixing part, the plug ring groove is provided with a non-return surface matched with the reverse-buckling claw, and the plug ring body is inserted into the plug ring groove and the reverse-buckling claw is abutted against the non-return surface.

By adopting the technical scheme, when the plug ring body is inserted into the plug ring groove, the inverted clamping jaw arranged on the plug ring body is abutted against the non-return surface of the plug ring groove, so that the problem that the plug ring body is separated from the plug ring groove to influence the use in the process of using the key function of the intelligent card is solved.

In one embodiment, a first connection colloid is fixedly arranged on one side of the fixing part facing the substrate, the plug ring body is inserted into the plug ring groove, and the first connection colloid is adhered to the substrate.

By adopting the technical scheme, when the inserting ring body is inserted into the inserting ring groove for installation, the first connecting colloid on the fixing part can be simultaneously bonded on the substrate, so that the condition that glue cannot enter between the key structure and the substrate is further ensured.

In one embodiment, the connecting structure includes a fixing portion surrounding the periphery of the key structure and a plug-in post fixedly disposed on a side of the fixing portion away from the key structure, the substrate is provided with a jack in cooperation with the plug-in post, and the plug-in post is inserted into the jack and is in interference fit with the jack.

Through adopting foretell technical scheme, locate button structure's periphery with connection structure's fixed part ring, make connection structure install at button structure, insert connection structure's grafting cylinder simultaneously and locate in the jack of base plate, and make grafting cylinder and jack interference fit, thereby the grafting cylinder fills up the clearance between base plate and the button structure, glue has been avoided getting into between base plate and the button structure, the base plate of smart card can press button structure through connection structure simultaneously, the effectual use of guaranteeing button structure is felt and button structure's normal use.

In one embodiment, a second connection adhesive is disposed on one side of the plug post facing the substrate, the plug post is inserted into the receptacle, and the second connection adhesive is adhered to the substrate.

Through adopting foretell technical scheme, through set up the second on the grafting cylinder and connect the colloid, when the grafting cylinder inserts in the jack, the second is connected the colloid and is bonded with the base plate of jack bottom to it is inseparabler to make grafting cylinder and jack connection.

In one embodiment, a sealing ring is arranged between the plug column and the jack.

By adopting the technical scheme, the sealing ring is arranged between the plug-in column body and the jack, so that when the plug-in column body is inserted into the jack, the sealing ring can avoid the problem that glue flows in from the plug-in column body and the jack.

In one embodiment, the connecting structure is an adhesive layer, one end of the adhesive layer is fixed on the key structure and the other end is adhered to the substrate.

Through adopting foretell technical scheme, establish connection structure into the viscose layer body, the one end of the viscose layer body sets firmly in the button structure, through with the direct bonding of the viscose layer body on the base plate of smart card for the direct fixed connection of button structure is on the base plate and seamless, avoids glue to get into between base plate and the button structure, and the effectual normal use who has guaranteed that the use of button structure feels and button function.

In one embodiment, the adhesive layer covers a side of the key structure facing the substrate.

Through adopting foretell technical scheme, locate the button structure with the cladding of viscose layer body, pass through the fixed bonding of viscose layer body with the button structure again on the base plate, the effectual firm in connection degree of having guaranteed between button structure and the base plate.

In one embodiment, the adhesive layer covers the periphery of the side of the key structure facing the substrate.

Through adopting foretell technical scheme, establish the viscose layer body at the periphery cladding of button structure orientation in base plate one side to pass through the fixed bonding of viscose layer body with the button structure on the base plate, can make button structure and base plate fixed through a small amount of viscose layer body, the effectual cost that has reduced.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings required for the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic structural diagram of a smart card according to an embodiment of the present invention;

FIG. 2 is a cross-sectional view taken at A-A of a smart card of FIG. 1;

fig. 3 is a schematic view illustrating a covering manner of the adhesive layer according to an embodiment of the present invention;

FIG. 4 is a cross-sectional view at A-A of the alternative smart card of FIG. 1;

fig. 5 is a schematic structural diagram of a connection structure according to an embodiment of the present invention;

fig. 6 is a schematic view illustrating a connection structure according to an embodiment of the present invention mounted on a substrate;

FIG. 7 is a cross-sectional view at A-A of the alternative smart card of FIG. 1;

fig. 8 is a schematic structural diagram of another connection structure according to an embodiment of the present invention.

Wherein, in the figures, the respective reference numerals:

the smart card comprises a smart card 100, a substrate 101, a printed circuit board 10, a pad 11, a key structure 20, a snap dome 30, a press anti-glue structure 40, a connecting structure 50, a fixing part 51, a first connecting colloid 511, an inserting ring body 52a, an inserting column body 52b, a reverse clamping jaw 53, a second connecting colloid 54, glue 60 and an adhesive layer body 70.

Detailed Description

Reference will now be made in detail to embodiments of the present invention, examples of which are illustrated in the accompanying drawings, wherein like reference numerals refer to the same or similar elements or elements having the same or similar function throughout. The embodiments described below with reference to the drawings are exemplary and intended to be used for explaining the present invention, and should not be construed as limiting the present invention.

In the description of the present invention, it is to be understood that the terms "length", "width", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like indicate orientations or positional relationships based on those shown in the drawings, and are merely for convenience of description and simplicity of description, and do not indicate or imply that the device or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be construed as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically limited otherwise.

In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," and "fixed" are to be construed broadly and may, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present invention can be understood according to specific situations by those skilled in the art.

Referring to fig. 1 and 2, the present invention provides a smart card 100, which includes a substrate 101 and a key structure 20 disposed inside the substrate 101, wherein the smart card 100 further includes a connection structure 50 for filling a gap between the key structure 20 and the substrate 101, one end of the connection structure 50 is connected to the key structure 20, and the other end of the connection structure 50 is connected to the substrate 101. The connecting structure 50 is connected between the key structure 20 and the substrate 101 to fill up the gap, so that the situation that glue cannot enter between the key structure 20 and the substrate 101 is ensured, and the normal use of the key structure 20 is effectively ensured.

The utility model provides a smart card 100, through set up connection structure 50 between button structure 20 and base plate 101, fill the clearance between button structure 20 and the base plate 101, in the encapsulating lamination in-process, effectually avoided getting into glue between button structure 20 and the base plate 101 owing to there being the clearance, thereby when the key position in the base plate 101 outside of pressing smart card 100, smart card 100's base plate 101 can directly extrude button structure 20 in order to accomplish the key operation through connection structure 50, button structure 20's use is felt betterly, the glue influence that no encapsulating produced between base plate 101 and the button structure 20, the effectual normal use who guarantees smart card 100's key function.

Specifically, the key structure 20 includes a printed circuit board 10 disposed in the smart card 100, a pad 11 disposed on the printed circuit board 10, a snap dome 30 mounted on the pad 11, and a pressing anti-glue structure 40 disposed around the snap dome 30 and fixed to the pad 11. One end of the connection structure 50 is mounted on the pressing dam structure 40, and the other end of the connection structure 50 is mounted on the substrate 101. The connection structure 50 can be glued, clamped or integrally formed on the pressing anti-glue structure 40, and the specific connection relationship can be selected by the actual situation.

It is understood that the press-fit glue prevention structure 40 is a structure that wraps the metal dome 30 and prevents glue from entering the metal dome 30. The pressing glue-proof structure 40 generally comprises a glue-proof middle frame annularly arranged on the snap dome 30 and having one end fixedly arranged on the bonding pad 11, and a glue-proof thin film fixedly arranged on the other end of the glue-proof middle frame.

Referring to fig. 1, 4 and 5, in an embodiment, the connection structure 50 includes a fixing portion 51 surrounding the key structure 20 and a plug ring body 52a fixedly disposed on a side of the fixing portion 51 away from the key structure 20, the substrate 101 is provided with a socket groove in cooperation with the plug ring body 52a, and the plug ring body 52a is inserted into the socket groove. The fixing portion 51 of the connecting structure 50 is disposed around the periphery of the key structure 20, and specifically, the fixing portion 51 can be connected to the key structure 20 in a snap-fit manner, so that the connecting structure 50 is mounted on the key structure 20, and meanwhile, the plug ring body 52a of the connecting structure 50 is inserted into the plug ring groove, so that the connecting structure 50 connects the substrate 101 and the key structure 20 at the same time. When the position of the key 102 on the outer side of the substrate 101 of the smart card 100 is pressed, the substrate 101 of the smart card 100 can extrude the key structure 20 through the connecting structure 50, and meanwhile, the glue 60 is prevented from entering between the substrate 101 and the key structure 20, so that the use hand feeling of the key structure 20 and the normal use of the key structure 20 are effectively guaranteed.

Referring to fig. 1 and 6, in an embodiment, an end of the insertion ring body 52a away from the fixing portion 51 is provided with a back-off claw 53, the insertion ring groove has a non-return surface matching with the back-off claw 53, the insertion ring body 52a is inserted into the insertion ring groove, and the back-off claw 53 abuts against the non-return surface. When the inserting ring body 52a is inserted into the inserting groove, the reverse-buckling claw 53 arranged on the inserting ring body 52a abuts against the non-return surface of the inserting groove, so that the problem that the inserting ring body 52a is separated from the inserting groove to influence the use in the process of using the key 102 is avoided.

Referring to fig. 1 and fig. 6, in an embodiment, a first connection colloid 511 is fixedly disposed on one side of the fixing portion 51 facing the substrate 101, the insertion ring body 52a is inserted into the insertion ring groove, and the first connection colloid 511 is adhered to the substrate 101. When the inserting ring 52a is inserted into the inserting ring groove for installation, the first connecting colloid 511 on the fixing portion 51 can be simultaneously adhered to the substrate 101, so as to further ensure that the glue cannot enter between the key structure 20 and the substrate 101.

Referring to fig. 1, 7 and 8, in an embodiment, the connection structure 50 includes a fixing portion 51 disposed around the periphery of the key structure 20 and an inserting column 52b fixedly disposed on a side of the fixing portion 51 away from the key structure 20, the substrate 101 is provided with a jack in cooperation with the inserting column 52b, and the inserting column 52b is inserted into the jack and is in interference fit with the jack. Locate the periphery of key structure 20 with connection structure 50's fixed part 51 ring, make connection structure 50 install on key structure 20, insert connection structure 50's grafting cylinder 52b simultaneously and locate in the jack of base plate 101, and make grafting cylinder 52b and jack interference fit, thereby grafting cylinder 52b fills up the clearance between base plate 101 and the key structure 20, glue 60 has been avoided getting into between base plate 101 and the key structure 20, simultaneously smart card 100's base plate 101 can press key structure 20 through connection structure 50, the effectual normal use who guarantees key structure 20 and feel and key structure 20 of using.

Referring to fig. 7 and 8, in an embodiment, a second connection adhesive 54 is disposed on a side of the plug cylinder 52b facing the substrate 101, the plug cylinder 52b is inserted into the receptacle, and the second connection adhesive 54 is adhered to the substrate 101. By arranging the second connection colloid 54 on the plug cylinder 52b, when the plug cylinder 52b is inserted into the jack, the second connection colloid 54 is adhered to the substrate 101 at the bottom of the jack, so that the plug cylinder 52b is connected with the jack more tightly. The second connection colloid 54 may be a double-sided adhesive block or an adhesive block, one end of the second connection colloid 54 is adhered to the plug cylinder 52b to be fixed to the plug cylinder 52b, and when the plug cylinder 52b is inserted into the receptacle during installation, the second connection colloid 54 contacts the bottom of the receptacle, so that the plug cylinder 52b is fixed in the receptacle through the second connection colloid 54.

Referring to fig. 7, in one embodiment, a sealing ring is disposed between the plug cylinder 52b and the insertion hole. By providing the sealing ring between the plug cylinder 52b and the receptacle, the sealing ring can avoid the problem of the inflow of the glue 60 from between the plug cylinder 52b and the receptacle when the plug cylinder 52b is inserted into the receptacle.

Referring to fig. 1 and 2, in one embodiment, the connecting structure 50 is an adhesive layer 70, one end of the adhesive layer 70 is fixed on the key structure 20, and the other end is adhered to the substrate 101. Set up connection structure 50 into viscose layer body 70, the one end of viscose layer body 70 sets firmly on button structure 20, through with the direct bonding of viscose layer body 70 on the base plate 101 of smart card 100 for button structure 20 fixed connection avoids glue 60 to get into between base plate 101 and the button structure 20 on base plate 101, and the effectual use that has guaranteed button structure 20 is felt and button structure 20 is normally used. The adhesive layer 70 may be a layer of adhesive coated on the surface of the key structure.

Referring to fig. 2, in one embodiment, the adhesive layer 70 is disposed on a side of the key structure 20 facing the substrate 101. The adhesive layer body 70 is completely covered on the key structure 20, and then the key structure 20 is fixedly bonded on the substrate 101 through the adhesive layer body 70, so that the firm connection degree between the key structure 20 and the substrate 101 is effectively ensured.

Referring to fig. 1 to fig. 3, in one embodiment, the adhesive layer 70 is disposed on the periphery of the key structure 20 facing the substrate 101. The periphery of the key structure 20 facing one side of the substrate 101 is covered with the adhesive layer 70, and the key structure 20 is fixedly adhered to the substrate 101 through the adhesive layer 70, and the key structure 20 can be fixed with the substrate 101 through a small amount of adhesive layer 70, so that the cost is effectively reduced.

The above description is only exemplary of the present invention and should not be construed as limiting the present invention, and any modifications, equivalents and improvements made within the spirit and principles of the present invention are intended to be included within the scope of the present invention.

Claims (10)

1. The utility model provides a smart card, includes the base plate and locates the inboard button structure of base plate which characterized in that: the smart card further comprises a connecting structure used for filling a gap between the key structure and the substrate, one end of the connecting structure is connected with the key structure, and the other end of the connecting structure is connected with the substrate.

2. The smart card of claim 1, wherein: the connection structure comprises a fixing part and a plug ring body, wherein the fixing part is arranged on the periphery of the key structure in a surrounding mode, the plug ring body is far away from the fixing part on one side of the key structure, the base plate is matched with the plug ring body, and a plug ring groove is formed in the plug ring body and is inserted into the plug ring groove.

3. The smart card of claim 2, wherein: the one end that the grafting ring body kept away from in the fixed part is equipped with the back-off jack catch, the plug-in groove have with back-off jack catch complex non return face, the grafting ring body insert locate the plug-in groove just back-off jack catch butt in the non return face.

4. The smart card of claim 2, wherein: the fixing part is provided with a first connecting colloid towards one side of the substrate, the inserting ring body is inserted in the inserting ring groove, and the first connecting colloid is adhered to the substrate.

5. The smart card of claim 1, wherein: the connecting structure comprises a fixing part and a plug-in column body, the fixing part is arranged on the periphery of the key structure in a surrounding mode, the plug-in column body is fixedly arranged on the fixing part and is far away from one side of the key structure, the base plate is matched with the plug-in column body and is provided with a jack, and the plug-in column body is inserted into the jack and is in interference fit with the jack.

6. The smart card of claim 5, wherein: and a second connecting colloid is arranged on one side of the inserting column facing the substrate, the inserting column is inserted into the jack, and the second connecting colloid is bonded on the substrate.

7. The smart card of claim 5, wherein: and a sealing ring is arranged between the inserting column body and the inserting hole.

8. The smart card of claim 1, wherein: the connecting structure is a viscose layer body, one end of the viscose layer body is fixedly arranged on the key structure, and the other end of the viscose layer body is bonded on the substrate.

9. The smart card of claim 8, wherein: the viscose layer body is arranged on one side of the key structure, which faces the substrate, in a covering manner.

10. The smart card of claim 8, wherein: the viscose layer body is arranged on the periphery of the key structure facing one side of the substrate in a covering mode.

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