CN108598758A - The IC card seat of reverse molding - Google Patents

Abstract

The IC card seat of the reverse molding of the present invention includes circuit board, pedestal, end cap and terminal, and end cap includes end cap ontology and fixed part；End cap is integrally formed by sheet metal；End cap is set between circuit board and pedestal, and end cap is welded on circuit boards by end cap ontology, and pedestal is fastened on by fixed part on end cap；Terminal is fixed in pedestal, and end cap includes multiple pins, and pin exposes from pedestal and is connected to circuit board.The end cap of the IC card seat of reverse molding is set between circuit board and pedestal, while playing the role of pedestal connection on circuit boards, socket is also formed between pedestal, by the way that end cap ontology is installed on circuit boards, circuit board can be supported end cap ontology, inhibit the deformation of end cap, so that end cap had not only had the planarization of connection with circuit board, but also can guarantee the stability of end cap shape.The reversed bending of pin in the case of overcoming using sheet metal end cap, needs the defect using double-sided PCB so that IC card seat is more frivolous.

Description

Reverse molded IC card holder

technical field

The invention relates to the field of card holders, in particular to reverse-molded IC card holders.

Background technique

The IC card stores information through the integrated circuit in the card, and the IC card holder is the bridge between the IC card and the application system. With the continuous development of science and technology, more and more IC cards are used, such as medical insurance IC cards, IC card bank cards, and IC card bus cards. In many IC card terminals, such as water, electricity, gas meters, IC card readers, door locks, access control systems, digital TV set-top boxes and other equipment, are all activated or closed by inserting the IC card into the IC card holder.

The components of the existing IC card holder are usually assembled on the plastic main body, and the plastic main body is stressed, and then the plastic main body is connected with the circuit board. In this way, the production process is cumbersome and prone to the inconvenience of cumulative tolerances and assembly errors. During use, the quality of the IC card holder is unstable due to the material properties of the plastic body. There is also an existing IC card holder that uses a single-sided carrier to form an IC card slot with the circuit board, reducing the thickness of the plastic body and making the overall thickness of the IC card holder thinner, but the IC card holder requires double-sided To connect the circuit board, the degree of thinning still needs to be improved.

Contents of the invention

In view of this, the purpose of the present invention is to overcome the deficiencies in the prior art and provide a reverse-molded IC card holder that is thinner, lighter in weight, flat in structure and stable.

The present invention provides following technical scheme:

The reverse-molded IC card holder includes a circuit board, a base, an end cover and terminals, and the end cover includes an end cover body and a fixing part;

The end cap is integrally formed by a metal sheet;

The end cover is arranged between the circuit board and the base, the end cover is welded on the circuit board through the end cover body, and the base is fastened to the end cover through the fixing part superior;

The terminals are fixed in the base, and the end cover includes a plurality of pins exposed from the base and connected to the circuit board.

As a further optional solution to the above-mentioned reverse-molded IC card holder, the end cover body is in a plate shape, the fixing part is provided on one side of the end cover body, and the welding foot is provided on the other side, and the circuit A welding hole is provided on the board, and the welding leg is inserted into the welding hole for welding. The embedded welding can make the connection between the end cover and the circuit board more stable and the welding more smooth.

As a further optional solution to the aforementioned reverse-molded IC card holder, the solder pins are plugged into the solder sockets, and the end cover body is attached to the circuit board. Therefore, the installation of the end cover is more smooth, and the structure of the IC card holder is more compact and the thickness is thinner.

As a further optional solution to the above reverse-molded IC card holder, the fixing part is bent at a right angle along the edge of the end cover body, and a chute is formed between the right angle bend and the end cover body, The base is correspondingly provided with a boss, and the boss is inserted into the slide groove. The base is fixed on the end cover by plugging, the end cover is easy to form, easy to assemble, and the fixing effect is good.

As a further optional solution to the above-mentioned reverse-molded IC card holder, the fixing part is provided on a set of opposite sides of the end cover body, and a set of opposite sides on the base is correspondingly provided with The boss; one side of the other set of opposite sides of the base is provided with a limiting platform, and the limiting platform abuts against the edge of the end cover body, and the limiting platform is provided The opposite side of the base forms a socket with the end cap. The IC card can be disassembled through the socket, and the semi-enclosed structure has better sealing performance. When assembling, the end cover body and the limit table are in place, and the assembly is better.

As a further optional solution to the above-mentioned reverse-molded IC card holder, a locking groove is provided on the limiting platform, and a locking claw is correspondingly provided on the edge of the end cover body. The degree of freedom of movement of the end cover relative to the base along the chute is limited by the clamping of the claws and the card slot. The fixing effect between the two is better, and there is no movement during the process of inserting and pulling out the card, and the durability of the IC card holder is higher. it is good.

As a further optional solution to the above-mentioned reverse-molded IC card holder, the fixing part is provided with a buckle position, and the boss is correspondingly provided with a buckle position. The freedom of movement of the end cover relative to the base along the chute is limited, the fixing effect between the two is better, no movement occurs during the insertion and removal of the card, and the durability of the IC card holder is better.

As a further optional solution to the above-mentioned reverse-molded IC card holder, the terminals are arranged on the base, and the end cover body is correspondingly provided so that the terminals are electrically connected to the circuit board. Connected cutouts. The end cover is arranged between the base and the circuit board, and the terminal passes through the end cover to connect with the circuit board.

As a further optional solution to the aforementioned reverse-molded IC card holder, the end cover is made of stainless steel sheet, and the base is made of plastic. The base is used to install the terminal, and the end cover is used to connect the support to form a socket space.

As a further optional solution to the above-mentioned reverse-molded IC card holder, the IC card holder further includes a switch assembly, the switch assembly includes a switch elastic piece and a switch, and the switch elastic piece is connected to the base, The switch is arranged between the base and the switch elastic piece, and the switch is electrically connected to the circuit board through the end cover; when the switch elastic piece triggers the switch, the circuit board Electricity.

Embodiments of the present invention have at least the following advantages:

The end cover of the reverse-formed IC card holder is set between the circuit board and the base. While connecting the base to the circuit board, it also forms a socket with the base for IC card insertion. . The thickness of the end cover made of metal sheet is thinner. When the end cover and the circuit board are welded at high temperature, the deformation of the metal sheet is small or negligible, the flatness is better, and the welding is more reliable. The size of the socket space formed between the end cover and the base is more fixed, making the contact size (area) between the IC card and the terminal more stable after being inserted into the socket of the IC card holder, and ensuring the effectiveness of card reading.

At the same time, because the thickness of the end cap made of metal sheet is relatively thin, its deformation resistance is poor. By installing the end cap body on the circuit board, the circuit board can support the end cap body and suppress the deformation of the end cap, thus making the The end cover and the circuit board not only have the flatness of the connection, but also can ensure the stability of the shape of the end cover.

In addition, through the reverse bending of the pins, the defect that a double-sided circuit board needs to be used in the case of using a metal sheet end cover is overcome.

In order to make the above objects, features and advantages of the present invention more obvious and comprehensible, preferred embodiments will be described below in detail together with the accompanying drawings.

Description of drawings

In order to illustrate the technical solutions of the embodiments of the present invention more clearly, the accompanying drawings used in the embodiments will be briefly introduced below. It should be understood that the following drawings only show some embodiments of the present invention, and thus It should be regarded as a limitation on the scope, and those skilled in the art can also obtain other related drawings based on these drawings without creative work.

Fig. 1 shows the overall structural axonometric view of the reverse-molded IC card holder provided by the embodiment of the present invention;

Fig. 2 shows the schematic diagram of the exploded structure of the reversely formed IC card holder provided by the embodiment of the present invention;

Fig. 3 shows the schematic structural view of the base of the reversely formed IC card holder provided by the embodiment of the present invention;

FIG. 4 shows a schematic structural view of an end cover of a reverse-molded IC card holder provided by an embodiment of the present invention.

1-IC card seat; 11-circuit board; 111-welding port; 12-base; 121-boss; 1211-buckle point; -End cover body; 1311-claw; 132-fixing part; 1321-holding buckle position; 133-welding foot; 14-terminal; 141-pin; 151-switch; 152-switch shrapnel.

Detailed ways

In order to facilitate the understanding of the present application, the reverse-molded IC card holder will be described more fully below with reference to the relevant drawings. The preferred embodiment of the reverse-molded IC card holder is given in the accompanying drawings. However, the reverse molded IC card holder can be implemented in many different forms and is not limited to the embodiments described herein. On the contrary, the purpose of providing these embodiments is to make the disclosure of the reverse-molded IC card holder more thorough and comprehensive.

It should be noted that when an element is referred to as being “fixed” to another element, it can be directly on the other element or there can also be an intervening element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or intervening elements may also be present. In contrast, when an element is referred to as being "directly on" another element, there are no intervening elements present. The terms "vertical," "horizontal," "left," "right," and similar expressions are used herein for purposes of illustration only.

Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the technical field to which this application belongs. The terminology used herein in the description of the reverse-molded IC card holder is for the purpose of describing specific embodiments only, and is not intended to limit the present invention. As used herein, the term "and/or" includes any and all combinations of one or more of the associated listed items.

Example 1

Please refer to FIG. 1 to FIG. 4 together. This embodiment provides a reverse-molded IC card holder 1 , including a circuit board 11 , a base 12 , an end cover 13 and terminals 14 . The end cap 13 includes an end cap body 131 and a fixing portion 132 , and the end cap 13 is integrally formed by a metal sheet. The end cover 13 is disposed between the circuit board 11 and the base 12 , the end cover 13 is welded on the circuit board 11 through the end cover body 131 , and the base 12 is fastened on the end cover 13 through the fixing portion 132 . The terminal 14 is fixed in the base 12 , and the terminal 14 includes a plurality of pins 141 exposed from the base 12 and connected to the circuit board 11 .

The end cover 13 is fixed on the circuit board 11 , so as to provide a fixed portion 132 for the base 12 , and the base 12 is fixed on the circuit board 11 through the end cover 13 . The pin 141 is reversely bent and connected to the circuit board 11 , so that the terminal 14 is electrically connected to the circuit board 11 . The IC card forms an electrical connection with the circuit board 11 through the terminal 14 for data transmission.

As mentioned above, the circuit board 11 is provided with electrical connection contacts. When the end cover 13 is soldered to the circuit board 11 , the pins 141 are engaged with the electrical connection contacts to form electrical conduction.

In this embodiment, the end cap 13 is integrally formed by a stainless steel sheet. The end cover body 131 is plate-shaped. The end cover body 131 has a fixing portion 132 on one side and a welding foot 133 on the other side.

The embedded welding can make the connection between the end cover 13 and the circuit board 11 more stable and the welding more smooth. And it can ensure that the connection gap between the end cover 13 and the circuit board 11 is smaller, and the solder is not deposited on the surface of the circuit board 11 opposite to the end cover 13 , but is deposited in the solder joint 111 of the circuit board 11 .

In this embodiment, the end cover body 131 is in the shape of a rectangle, and each of its four corners is provided with a welding foot 133, and the circuit board 11 is correspondingly provided with four welding holes 111, through which the four sides of the end cover 13 The fixing of the angle realizes the omni-directional fixing of the end cover 13. It can be understood that other numbers or other distribution methods of the welding legs 133 can also be set according to the connection strength requirement.

The welding foot 133 is connected to the end cover body 131 at one end of the end cover body 131, and the other end is a free end metal sheet. The welding foot 133 is cut out by stamping or wire, and then bent at a right angle relative to the end cover body 131. At the same time, the end cover body 131 Hollows matching the solder feet 133 are formed on the top.

Welding leg 133 is plugged into welding port 111, and end cover body 131 is attached to circuit board 11. After end cover 13 is welded to circuit board 11, end cover body 131 is attached to circuit board 11, so that end cover 13 The installation of the IC card holder 1 is more smooth, the structure of the IC card holder 1 is more compact, and the thickness is thinner, and at the same time, the suppression of the deformation of the end cover 13 by the circuit board 11 is more effective.

The fixing portion 132 is bent at right angles along the edge of the end cover body 131 , and a slide groove is formed between the right angle bend and the end cover body 131 , and the base 12 is provided with a boss 121 correspondingly, and the boss 121 is inserted into the slide groove. The right-angled bending of the fixing part 132 and the end cover body 131 enclose a chute in the form of a U-shaped chute. The edge of the base 12 is provided with a boss 121, and the boss 121 is inserted in the chute so that the base 12 and the chute The end cap 13 forms a plug-in fixation.

The end cover 13 of this structure is easy to be formed by cutting, punching out holes, and then bending to form welding feet 133 and slide grooves. The plug-in connection is easy to assemble and has a good fixing effect.

The fixing portion 132 is disposed on a pair of opposite sides of the end cover body 131 , specifically, it may be on short opposite sides of a rectangle. One group of opposite sides on the base 12 is provided with a boss 121 correspondingly, and one side of the other group of opposite sides of the base 12 is provided with a limiting platform 122, and the limiting platform 122 and the two bosses 121 are in the shape of a circle. Shaped distribution, and enclosed a semi-open groove. The semi-open groove and the end cover body 131 together form a cavity with an opening on one side. The cavity is used for accommodating an IC card, and the opening is an IC card socket.

It can be understood that the depth of the groove on the base 12, that is, the height of the protrusion 121 is equal to the thickness of the IC card accommodating cavity.

The height of the limiting platform 122 is higher than that of the boss 121 . When the base 12 is fully inserted into the end cover 13 , the limiting platform 122 of the base 12 abuts against the edge of the end cover body 131 , so that the insertion cannot be continued. Limiting platform 122 makes IC card holder 1 have only one opening on the one hand, limits the insertion degree of IC card, limits the insertion position of end cover 13 and base 12 on the other hand, during assembly, end cover body 131 and When the limit table 122 abuts, it is assembled in place, and the assemblability is better.

A locking slot 1221 is provided on the limiting platform 122 , and a corresponding claw 1311 is provided on the edge of the end cover body 131 . When the base 12 is inserted into the end cover 13 in place, the claw 1311 engages with the slot 1221 . In this embodiment, the edge of the end cover body 131 is provided with a plurality of claws 1311, and the limit table 122 is provided with a number of slots 1221 that match the positions of the slots 1221, so that the gap between the end cover 13 and the base 12 Tight joint.

At the same time, the fixing part 132 is provided with a buckle position 1321 , and the boss 121 is correspondingly provided with a buckle position 1211 . When the base 12 is inserted into the end cover 13 in place, the holding buckle position 1321 is engaged with the buckle position locking point 1211 . The buckle holding position 1321 is a groove provided with an inner buckle on a right-angle bend, and the groove of the inner buckle is equivalent to a protrusion on the inner side. The buckle point 1211 is a groove corresponding to the buckle holding position 1321 . Since the boss 121 is disposed inside the slide groove, the groove of the inner buckle on the fixing part 132 can be buckled with the groove on the boss 121 .

The degree of freedom of movement of the end cover 13 relative to the base 12 along the chute is limited by the engagement of the claw 1311 and the slot 1221, and the engagement of the buckle position 1321 and the buckle point 1211, and the fixing effect between the two Even better, there is no movement during the process of inserting and removing the card, and the IC card holder 1 has better durability.

The base 12 is a plastic part, which can be integrally formed by injection molding. The boss 121 and the limiting platform 122 are bar-shaped protrusions higher than the surface of the base 12. After the base 12 is inserted into the end cover 13, the limiting platform 122 and the The surface of the end cover 13 is even, so that the IC card holder 1 has a flat surface.

The terminals 14 are arranged on the base 12, and the base 12 directly forms the installation grooves of the terminals 14 during injection molding, and the terminals 14 are installed and fixed by arranging the spring wire-shaped terminals 14 in the installation grooves. The terminal 14 is mainly used for the transmission of electrical signals and plays a role of conduction. The terminal 14 is electrically connected to the circuit board 11 through the pin 141. When the chip of the IC card is in contact with the terminal 14, the terminal 14 is elastically deformed, thereby connecting with the circuit board 11 to realize the electrical connection between the IC card and the circuit board 11 .

Correspondingly, the end cover body 131 is provided with a hollow for electrically connecting the terminal 14 with the circuit board 11 . The end cover 13 is disposed between the base 12 and the circuit board 11 , and the terminal 14 is connected to the circuit board 11 through the end cover 13 when deformed.

The IC card holder 1 also includes a switch assembly. The switch assembly includes a switch shrapnel 152 and a switch 151. When the base 12 is injection-molded, a mounting groove for the switch shrapnel 152 is also injection-molded. Connect to the circuit board 11 through the slot.

Specifically, the switch elastic piece 152 is plugged on the base 12 through four pins, the switch 151 is arranged between the base 12 and the switch elastic piece 152, and has a reversely bent connecting foot, which passes through the end cover 13 Connected to the circuit board 11 , when the switch elastic piece 152 is pressed down, the switch 151 can be triggered to turn on, so that the circuit board 11 is powered on.

The switch assembly is arranged in the IC accommodating cavity, the main body of the switch elastic piece 152 is not higher than the surface of the base 12 in the IC accommodating cavity, and the shrapnel of the switch elastic piece 152 is higher than the surface of the base 12 in the IC accommodating cavity, and The switch shrapnel 152 is tilted toward the limit platform 122 . When the IC card is inserted, the switch elastic piece 152 is pressed down, so that the switch 151 is turned on, and the IC card holder 1 is powered on.

Embodiments of the present invention have at least the following beneficial effects:

1. The end cover 13 of the reversely formed IC card holder 1 is located between the circuit board 11 and the base 12, and plays the role of connecting the base 12 to the circuit board 11, and is also connected to the base 12. A socket is formed between them for insertion of an IC card, and the function integration of the end cover 13 is higher.

2. The end cover 13 adopts a one-piece structure, which has better structural stability and no stress concentration at the joint, and the stainless steel material is lighter and thinner than plastic parts. At the same time, the stainless steel material can be directly welded and connected with the circuit board 11, and the connection is more reliable and smooth. It is a light and thin end cover 13 with simple processing and assembly, stable structure, high compressive strength.

3. When the end cover 13 and the circuit board 11 are welded at high temperature, the deformation of the metal sheet is small or negligible, the flatness is better, and the welding is more reliable.

4. By installing the end cover body 131 on the circuit board 11, the circuit board 11 can support the end cover body 131 and suppress the deformation of the end cover 13, so that the end cover 13 and the circuit board 11 have both smooth connection, In addition, the stability of the shape of the end cap 13 can be ensured. The size of the socket space formed between the end cover 13 and the base 12 is more fixed, so that the contact size (area) between the IC card and the terminal 14 is more stable after being inserted into the socket of the IC card holder 1, and the effective card reading is ensured. sex.

5. Through the reverse bending of the pin 141 , the defect that the double-sided circuit board 11 needs to be used in the case of using the metal sheet end cover 13 is overcome.

In all examples shown and described herein, any specific values should be construed as merely exemplary and not limiting, and thus other examples of the exemplary embodiments may have different values.

It should be noted that like numerals and letters denote similar items in the following figures, therefore, once an item is defined in one figure, it does not require further definition and explanation in subsequent figures.

The above-mentioned embodiments only express several implementations of the present invention, and the description thereof is relatively specific and detailed, but should not be construed as limiting the scope of the present invention. It should be pointed out that those skilled in the art can make several modifications and improvements without departing from the concept of the present invention, and these all belong to the protection scope of the present invention.

Claims (10)

1. the IC card seat of reverse molding, which is characterized in that including circuit board, pedestal, end cap and terminal, the end cap includes end cap Ontology and fixed part；

The end cap is integrally formed by sheet metal；

The end cap is set between the circuit board and the pedestal, and the end cap is welded on the electricity by the end cap ontology On the plate of road, the pedestal is fastened on by fixed part on the end cap；

The terminal is fixed in the susceptor, and the end cap includes multiple pins, and the pin exposes simultaneously from the pedestal It is connected to the circuit board.

2. the IC card seat of reverse molding according to claim 1, which is characterized in that the end cap ontology is plate-like, described End cap ontology one side is equipped with the fixed part, and another side is equipped with leg, and the circuit board is equipped with weld bond, and the leg is inserted in It is welded in the weld bond.

3. the IC card seat of reverse molding according to claim 2, which is characterized in that the leg is plugged to the weld bond In, the end cap ontology is bonded with the circuit board.

4. the IC card seat of reverse molding according to claim 1, which is characterized in that the fixed part is along the end cap sheet The right-angle bending at body edge forms sliding slot, boss is accordingly equipped on the pedestal between right-angle bending and the end cap ontology, The boss is inserted into the sliding slot.

5. the IC card seat of reverse molding according to claim 4, which is characterized in that the fixed part is set to the end cap sheet One group of opposite side of body, it is corresponding on one group of opposite side on the pedestal to be equipped with the boss；

A line in another group of opposite side of the pedestal is equipped with limiting stand, the edge of the limiting stand and the end cap ontology It abuts, the opposite side and the end cap for being equipped with the pedestal of the limiting stand form socket.

6. the IC card seat of reverse molding according to claim 5, which is characterized in that the limiting stand is equipped with card slot, institute The edge for stating end cap ontology is accordingly equipped with claw.

7. the IC card seat of reverse molding according to claim 5, which is characterized in that the fixed part is equipped with the button that holds , button bit stuck point is accordingly equipped on the boss.

8. the IC card seat of the reverse molding according to any one of claim 1-7, which is characterized in that the terminal is set to institute It states on pedestal, the corresponding hollow out being equipped with so that the terminal is electrically connected with the circuit board on the end cap ontology.

9. the IC card seat of the reverse molding according to any one of claim 1-7, which is characterized in that the end cap is by stainless Steel disc is made, and the pedestal is made of plastic cement.

10. the IC card seat of the reverse molding according to any one of claim 1-7, which is characterized in that the IC card seat is also Including switch module, the switch module includes switch shrapnel and switch, and the switch shrapnel is connected on the pedestal, described Switch is set between the pedestal and the switch shrapnel, and the switch is electrically connected across the end cap and the circuit board；

When the switch shrapnel triggers the switch, the circuit board powers on.