Magnetic card reader and magnetic card head

Abstract

The present application provides a magnetic card reader and a magnetic card head thereof, wherein the magnetic card head comprises a shielding shell and a magnetic head assembly mounted in the shielding shell, wherein the magnetic head assembly comprises one or more magnetic core groups, a wire package, a clamp, a spring clip, a terminal block and a printed circuit board, wherein the magnetic core group and the wire package are fixed in a groove formed by the clamp, and the two relatively mounted clamps are clamped by the spring clip; one end of the terminal block is connected to the wire package, and the other end is bent and connected to the pad of the printed circuit board by hot pressing. The present application scheme can effectively reduce the overall height of the magnetic head and improve the welding effect through the above means, and can also increase the security of the information collected by the magnetic head.

Description

Technical Field

[0001] The present application relates to the technical field of magnetic recording equipment, and in particular, to a magnetic card reader and a magnetic card head thereof. Background Art

[0002] The magnetic card head is a key component of the magnetic card reader. It plays the most important role in converting information between magnetic cards in the system and retrieving it. At present, magnetic card heads are used in various industries: magnetic card phones, bank system access cards, attendance systems, door monitoring systems, refueling systems, password locks, subway automatic ticketing systems, etc.

[0003] Reference Figure 3 The schematic diagram of the cross-sectional structure of the existing magnetic card head is shown, which includes: a plurality of magnetic core groups 12, a clamp 11, a wire package 13, a gap sheet 14, a shielding shell 15, and a terminal 16. The assembly method of the existing magnetic card head is: the scattered magnetic cores are stacked into a plurality of magnetic core groups 12, which are fixed in the groove formed by the clamp 11, and the wire package 13 and the gap sheet 14 are respectively assembled on the upper and lower parts of the clamp 11 to form a magnetic head assembly with a transformer-like structure, which is then covered by the shielding shell 15, and the screws pass through the screw holes 17 on the side of the shielding shell for fixing, and the remaining space in the shielding shell 15 is filled with resin, and the exposed terminal 16 is led out from the wire package 13.

[0004] If the components in the shielding shell 15 are taken as a whole (i.e., as a component of the magnetic card magnetic head, referred to as the magnetic head component in this application), the assembly process is as follows: the magnetic core group 12 is loaded into the clamp 11 and pressed; the left and right clamps 11 are opposite to each other, the wire package 13 is put on the clamp legs, the gap sheet 14 is placed between the two clamps 11, and then the two clamps 11 are clamped together using the clamp spring 18, so that the above components are combined together, and the assembled magnetic head assembly is as shown in FIG. Figure 4 shown.

[0005] The height of magnetic heads produced by existing technology is generally above 5mm. With the rapid development of various electronic technologies, some other functional components are usually needed to be added to the magnetic head to improve the comprehensive card reading ability, which makes it unsuitable for use in many occasions with narrow spaces. Summary of the invention

[0006] The present application provides a magnetic card reader and a magnetic card head thereof, which can solve the problem that the height of the existing magnetic head assembly cannot adapt to many places with narrow spaces.

[0007] A magnetic card head provided by the present application comprises a shielding shell and a magnetic head assembly sleeved in the shielding shell, wherein the magnetic head assembly comprises one or more magnetic core groups, a wire package, a clamp, a spring clip, a wiring terminal and a printed circuit board, wherein the magnetic core group and the wire package are fixed in a groove formed by the clamp, and two relatively mounted clamps are clamped together by the spring clip; one end of the wiring terminal is connected to the wire package, and the other end is bent and connected to a pad of the printed circuit board by hot pressing.

[0008] Preferably, the printed circuit board is hidden inside the shielding shell by means of glue filling.

[0009] Preferably, the connection terminal is a U-shaped terminal; and the printed circuit board is a flexible circuit board.

[0010] The present application provides a magnetic card reader, which includes the above-mentioned magnetic card head.

[0011] Compared with the prior art, this application has the following advantages:

[0012] The present application can not only reduce the overall height of the magnetic head by bending the terminal, but also increase the contact area with the printed circuit board pad and improve the welding effect; the terminal is connected to the printed circuit board pad by hot pressing welding, and no tin head is generated on the upper part of the circuit board to increase the height of the magnetic head, thereby further reducing the height of the magnetic head and solving the problem that the existing magnetic head height cannot adapt to the application scenario with a small space. In addition, since there is no terminal exposed on the upper part of the circuit board, the magnetic card information collected by the magnetic head cannot be obtained without destroying the magnetic head, so the security of the information can be effectively increased. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 A cross-sectional view of an embodiment of a magnetic card head of the present application;

[0014] Figure 2 for Figure 1 The three-dimensional image of the magnetic card head before soldering the circuit board is shown;

[0015] Figure 3 It is a cross-sectional view of a conventional magnetic card head;

[0016] Figure 4 is a three-dimensional diagram of a conventional magnetic head assembly;

[0017] Figure 5 Schematic diagram of the tin head left for the existing soldering method. DETAILED DESCRIPTION

[0018] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, the present application is further described in detail below in conjunction with the accompanying drawings and specific implementation methods.

[0019] In the description of this application, it should be understood that the terms "middle", "top", "bottom", "inside", "outside", etc., indicating positions or positional relationships, are based on the positions or positional relationships shown in the drawings, and are only for the convenience of describing this application and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific position, be constructed and operated in a specific position, and therefore cannot be understood as a limitation on this application. In the description of this application, "multiple" means two or more, unless otherwise clearly and specifically defined.

[0020] In addition, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection, or it can be an indirect connection through an intermediate medium, or it can be the internal communication of two elements. For ordinary technicians in this field, the specific meanings of the above terms in this application can be understood according to specific circumstances.

[0021] In the present application, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may include that the first and second features are in direct contact, or may include that the first and second features are not in direct contact but are in contact through another feature between them. Moreover, a first feature being "above", "above" and "above" a second feature includes that the first feature is directly above and obliquely above the second feature, or simply indicates that the first feature is higher in level than the second feature. A first feature being "below", "below" and "below" a second feature includes that the first feature is directly below and obliquely below the second feature, or simply indicates that the first feature is lower in level than the second feature.

[0022] Reference Figure 1~2 , shows a schematic diagram of the structure of a magnetic card head and its clamp and a magnetic core group part of the present application. The magnetic card head of this embodiment includes a shielding shell 15 and a magnetic head assembly set in the shielding shell 15. The magnetic head assembly includes one or more magnetic core groups 12, a coil, a clamp 11, a spring 18, a terminal 16 and a printed circuit board 19. Among them:

[0023] The magnetic core group 12 and the coil are fixed in the groove formed by the clamp 11, and the two clamps 11 installed opposite to each other are clamped together by the clamp spring 18;

[0024] One end of the connection terminal 16 is connected to the wire package, and the other end is bent and connected to the pad of the printed circuit board 19 by thermal compression welding.

[0025] In specific implementation, the connection terminal 16 can be a U-shaped terminal specially used for hot pressing welding (such as Figure 2As shown in the figure); the printed circuit board (PCB, Printed Circuit Board) can specifically select a flexible printed circuit board (FPC, Flexible Printed Circuit).

[0026] The present invention bends the connection terminal 16 and connects the connection terminal 16 to the pad of the circuit board by hot pressing welding. Figure 5 The tin head shown in the figure only increases the thickness of the circuit board after welding (taking FPC as an example, the thickness is about 0.2mm), and does not increase the height of the head. This can greatly reduce the height of the head and solve the problem that the existing head height (generally about 5mm) cannot adapt to application scenarios with narrow space.

[0027] The present application also provides a magnetic card reader including the above-mentioned magnetic card head.

[0028] It should be noted that the above embodiments are all preferred embodiments, and the components involved are not necessarily required for this application. The various embodiments in this specification are described in a progressive manner, and each embodiment focuses on the differences from other embodiments. The same and similar parts between the various embodiments can be referenced to each other.

[0029] Specific examples are used herein to illustrate the principles and implementation methods of the present application. The description of the above embodiments is only used to help understand the method of the present application and its core idea. At the same time, for those skilled in the art, according to the idea of ​​the present application, there will be changes in the specific implementation methods and application scope. In summary, the content of this specification should not be understood as a limitation on the present application.

Claims

1. A magnetic card head, comprising a shielding shell and a magnetic head assembly sleeved in the shielding shell, wherein the magnetic head assembly comprises one or more magnetic core groups, a coil, a clamp, a spring, a terminal and a printed circuit board, wherein the magnetic core group and the coil are fixed in a groove formed by the clamp, and the two relatively mounted clamps are clamped by the spring; characterized in that: The pad of the printed circuit board is arranged on the surface of the printed circuit board facing the clamper; One end of the connection terminal is connected to the wire package, the other end of the connection terminal extending toward the opening of the shielding shell for fitting the magnetic head assembly is bent and connected to the pad of the printed circuit board by hot pressing welding, and the other end is bent toward the opening and the central axis direction of the clamp so that the other end is only directly hot pressed and welded to the surface of the pad, the other end of the connection terminal is a U-shaped terminal dedicated to hot pressing welding, the printed circuit board is a flexible circuit board, and the U-shaped terminal dedicated to hot pressing welding is connected to the pad of the flexible printed circuit board located on the side facing the magnetic core group by hot pressing welding; and The printed circuit board is hidden inside the shielding shell by means of glue filling, and the upper part of the printed circuit board is not exposed without the connection terminals.

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