Magnetic head installation structure and card reader

Abstract

The utility model relates to the technical field of card readers, and discloses a magnetic head installation structure and a card reader, and the magnetic head installation structure comprises a magnetic head and an installation support. Clamping grooves are formed in at least one pair of side surfaces of the shell of the magnetic head, connecting parts connected with an external structure are arranged at two ends of the mounting bracket, and a mounting part for accommodating the magnetic head is arranged in the middle of the mounting bracket. At least one pair of sides of the installation part is provided with a bending part, the bending part is provided with a buckle matched with the clamping groove, when the magnetic head is installed in the installation support, the bending part is attached to the side face, provided with the clamping groove, of the shell, and the buckle is clamped into the clamping groove. The magnetic head installation structure provided by the embodiment of the utility model is high in installation efficiency, can control the assembly height of the magnetic head and the installation support through the size matching of the clamping groove, the installation support and the buckle, is high in size positioning precision, does not cause segment difference of resin in the magnetic head, and can prevent the magnetic head from scratching a magnetic strip of a magnetic card during card swiping due to the segment difference.

Description

Technical Field

[0001] The utility model relates to the technical field of card readers, in particular to a magnetic head installation structure and a card reader. Background Art

[0002] The magnetic head of the card reader usually needs to be installed on the housing of the card reader through a bracket. In existing card readers, the magnetic head and the bracket are often connected by laser welding or pole welding, such as Figure 1 As shown, since the assembly height of the magnetic head and the bracket affects the card swiping performance of the magnetic head, during the welding process, after the bracket is put on the magnetic head, it is necessary to put it as a whole into the positioning fixture, fix the relative position of the bracket and the magnetic head, and then put the positioning fixture into the welding equipment. By rotating the positioning fixture, the laser generator can weld each welding point between the magnetic head and the bracket. The connection process between the above-mentioned magnetic head and the bracket is time-consuming. After the processing is completed, the magnetic head and the bracket are very firmly fused. When the assembly positioning dimensions are inaccurate, it is difficult to rework and disassemble, which brings inconvenience to the production process of the magnetic head. In addition, the instantaneous heat during the welding process may also cause the resin and other materials inside the magnetic head to deform due to heat, resulting in the edge of each track window of the magnetic head. The resin step difference will affect the magnetic head to scratch the magnetic strip of the magnetic card, affecting the card swiping action and may cause damage to the magnetic card. Utility Model Content

[0003] In order to overcome the shortcomings of the prior art, the purpose of the utility model is to provide a head mounting structure, which can achieve the connection between the head and the bracket without welding, has high dimensional positioning accuracy, and does not require heat treatment during the connection process, and will not cause resin step differences at the edges of each track window of the head.

[0004] In order to solve the above problems, the technical solution adopted by the utility model is as follows: comprising: a magnetic head mounting structure, comprising: a magnetic head, at least one pair of side surfaces of a shell being provided with a card slot; a mounting bracket, both ends being provided with connecting parts for connecting with an external structure, a middle being provided with a mounting part for accommodating the magnetic head, at least one pair of sides of the mounting part being provided with a bending part, the bending part being provided with a buckle matching the card slot, when the magnetic head is installed in the mounting bracket, the bending part is fitted with the side surface of the shell being provided with the card slot, and the buckle is snapped into the card slot.

[0005] Compared with the prior art, the beneficial effects of the utility model are as follows: the magnetic head and the mounting bracket are quickly connected by means of the snap-fit ​​and the slot engagement. During installation, it is only necessary to sleeve the mounting bracket onto the magnetic head according to the designed mounting direction, without the need for a positioning fixture, and no heat treatment processes such as laser or pole welding are required during the installation process. The installation efficiency is high, and the assembly height between the magnetic head and the mounting bracket is easy to adjust by adjusting the size parameters of the mounting bracket, the slot and the snap-fit, and the size positioning accuracy is higher. After installation, in the event of a very small number of defective products with inaccurate positioning dimensions, the snap-fit ​​installation method is also easy to disassemble and rework, and the housing and bracket of the magnetic head are not easily deformed after disassembly, thereby reducing production costs. In addition, since no heat treatment is performed during the installation process, it is possible to avoid the internal resin of the magnetic head being heated to produce a resin step difference that affects the card swiping use of the magnetic head.

[0006] In the above magnetic head mounting structure, the mounting portion is a mounting hole that can just allow the magnetic head to pass through.

[0007] In the above magnetic head mounting structure, the bent portion faces the insertion direction of the magnetic head.

[0008] In the above magnetic head mounting structure, an inclined surface is provided at the intersection of the end surface of the shell facing the insertion direction of the magnetic head and the side surface of the shell provided with the slot, and an acute angle is formed between the inclined surface and the insertion direction of the magnetic head.

[0009] In the above magnetic head mounting structure, the buckle is a spring sheet arranged on the bent portion, the spring sheet is inclined toward the inside of the mounting portion, and an acute angle is formed between the spring sheet and the insertion direction of the magnetic head.

[0010] In the above magnetic head mounting structure, the spring sheet is formed by punching out the bent portion.

[0011] In the above magnetic head mounting structure, the connecting portion is connected to the external structure by bolts.

[0012] A card reader comprises the magnetic head mounting structure mentioned above.

[0013] The utility model is further described in detail below in conjunction with the accompanying drawings and specific implementation methods. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] Figure 1 It is a structural schematic diagram of an existing magnetic head mounting structure;

[0015] Figure 2 It is a structural schematic diagram of the magnetic head installation structure of the first embodiment of the utility model;

[0016] Figure 3 It is an exploded schematic diagram of the magnetic head mounting structure of the first embodiment of the utility model;

[0017] Figure 4 A schematic diagram of the installation process of the magnetic head installation structure of the first embodiment of the utility model;

[0018] Figure 5 It is a cross-sectional view of the magnetic head mounting structure according to the second embodiment of the utility model.

[0019] Description of Figure Numbers:

[0020] 100 magnetic head, 110 card slot, 120 inclined surface, 200 mounting bracket, 210 connecting part, 220 mounting part, 230 bending part, 231 buckle, 300 welding point. DETAILED DESCRIPTION

[0021] The embodiments of the present invention are described in detail below. Figure 2 and Figure 3 The embodiment of the utility model provides a magnetic head mounting structure, including a magnetic head 100 and a mounting bracket 200. A card slot 110 is provided on at least one pair of side surfaces of the housing of the magnetic head 100, a connecting portion 210 for connecting with an external structure is provided at at least two ends of the mounting bracket 200, and a mounting portion 220 for accommodating the magnetic head 100 is provided in the middle. A bending portion 230 is provided on at least one pair of sides of the mounting portion 220, and a buckle 231 matching the card slot 110 is provided on the bending portion 230. When the magnetic head 100 is installed in the mounting portion 220, the bending portion 230 fits with the side surface of the housing where the card slot 110 is provided, and the buckle 231 is snapped into the card slot 110, so that the magnetic head 100 is fixedly mounted on the mounting bracket 200. The magnetic head mounting structure of the embodiment of the utility model realizes the fixed connection between the magnetic head 100 and the mounting bracket 200 by engaging the buckle 231 with the slot 110. Compared with the traditional welding connection method, the installation process does not require a positioning fixture, nor does it require a rotating positioning fixture to weld multiple welding points 300. It only needs to cover the mounting bracket 200 on the magnetic head 100 according to the designed installation direction, and the installation efficiency is high. Even if the positioning size of the structure after installation is inaccurate due to a very small number of improper assembly or incoming material problems, the magnetic head 100 can be removed from the mounting bracket 200 for rework by prying the buckle 231 and other methods, and the disassembly process is not easy to cause the shell of the magnetic head 100 and the mounting bracket 200 to deform. In addition, since there is no heat treatment process in the entire installation process, the resin and other materials in the magnetic head 100 will not expand due to heat, resulting in a step difference between different tracks of the magnetic head 100, thereby avoiding the step difference affecting the card reading action of the magnetic head 100 and avoiding the magnetic card damage caused by scratching the magnetic strip of the magnetic card during card reading.

[0022] It is understandable that the mounting portion 220 may be a mounting slot or a mounting hole that matches the housing of the magnetic head 100, as shown in FIG. Figure 3In this embodiment, the mounting portion 220 is a mounting hole that can be passed through the housing of the magnetic head 100. The card slot 110 is a rectangular card slot 110, which is symmetrically arranged on the left and right sides of the housing. It can be understood that the buckle 231 can be a spring, a boss, or a combination of the two. Figure 3 and Figure 4 In this embodiment, the buckle 231 is a square spring piece, which is arranged on the inner side of the bent portion 230 toward the mounting portion 220. The mounting bracket 200 is mounted on the housing of the magnetic head 100 from the direction of the reading surface where the coil and the core of the magnetic head 100 are located, the bent portion is facing the insertion direction of the magnetic head 100, the spring piece is inclined toward the inner side of the bent portion 230 toward the center of the mounting portion 220, and forms an acute angle in the insertion direction of the magnetic head 100 during installation. The end surface of the housing in the insertion direction, that is, the intersection of the reading surface of the magnetic head 100 and the side surface provided with the card slot 110 in this embodiment, is provided with an inclined surface 120, and the inclined surface 120 also has an acute angle with the insertion direction of the magnetic head 100, so that the spring piece can be pressed outward and deformed during installation, so that the distance between the ends of the spring pieces on both sides is expanded to allow the main body of the housing to pass through, thereby facilitating the spring piece to be inserted into the card slots 110 on both sides of the housing. It is understood that the spring sheet can be mounted on the bent portion 230 by welding, or can be formed by punching a portion of the bent portion 230. It is understood that the acute angle between the inclined surface 120 and the insertion direction of the magnetic head 100 is greater than the acute angle between the spring sheet and the insertion direction of the magnetic head 100.

[0023] Reference Figure 4The specific installation process of the magnetic head mounting structure of the embodiment of the utility model is shown in the figure. When the mounting bracket 200 is just inserted into the magnetic head 100, due to the existence of the inclined surface 120 area, the point a of the spring piece can avoid the housing of the magnetic head 100, so that the mounting bracket 200 can be inserted into the housing to a certain depth. Continue to press the mounting bracket 200 downward, and the point a of the spring piece will contact the inclined surface 120, and gradually move toward the outer shape under the guidance of the inclined surface 120 until it contacts the side of the housing. With the deformation of point a, under the action of elastic force, point b of the bending portion 230 also expands outward and deforms, thereby increasing the distance between the two points b of the bending portion 230, so that the magnetic head 100 can continue to penetrate into the mounting portion 220 more easily. Then continue to press down the mounting bracket 200, the c section of the bent portion 230 and the main plane part of the mounting bracket 200 first pass through the slot 110, and then when point a of the spring sheet reaches the slot 110, since the slot 110 no longer has support resistance to point a, point a rebounds inwards under the action of elastic force and extends into the slot 110, and point b also rebounds to a straight state, and point a of the spring sheet clamps the side wall of the slot 110, fixes the relative position between the magnetic head 100 and the mounting bracket 200, and completes the installation between the magnetic head 100 and the mounting bracket 200. On the contrary, when the magnetic head 100 needs to be disassembled due to inaccurate positioning dimensions after installation, it is only necessary to push the magnetic head 100 in the opposite direction of the downward pressing direction of the mounting bracket 200 during installation, and the defective magnetic head 100 and the mounting bracket 200 can be separated and reworked without the help of any tools.

[0024] It is understandable that the width of the card slot 110 in the direction of insertion of the magnetic head 100 should match the vertical distance from the point a of the spring sheet to the connection between the spring sheet and the bending portion 230 in the direction of insertion of the magnetic head 100, and the depth of the card slot 110 should match the vertical distance from the point a of the spring sheet to the flat surface of the bending portion 230, so as to ensure the positioning accuracy after installation, and ensure that the magnetic head 100 can accurately read and write the information on the magnetic stripe of the magnetic card after being installed in the card reader. The magnetic head installation structure of the utility model can also serve as a buffer between the magnetic head 100 and the card reader structure because the spring sheet itself has the ability of elastic deformation, so as to avoid the magnetic stripe of the magnetic card being scratched due to excessive pressure between the magnetic head 100 and the magnetic card when the magnetic head 100 contacts the magnetic card.

[0025] Reference Figure 5In some embodiments, in order to make the relative position positioning between the magnetic head 100 and the mounting bracket 200 more accurate after installation, and to facilitate the disassembly and separation of the defective magnetic head 100 and the mounting bracket 200, the bottom surface of the card slot 110 is also an inclined surface, and the bottom surface is parallel to the inclined direction of the spring under normal conditions, so that after the mounting bracket 200 is installed in place, the bottom surface of the card slot 110 can support and limit the spring rebounded to the original position, so as to ensure the relative position between the mounting bracket 200 and the magnetic head 100 is accurate. At the same time, when the magnetic head 100 is disassembled by pushing back, the point a of the spring can also expand outward elastically under the guidance of the inclined bottom surface of the card slot 110, so that the disassembly between the magnetic head 100 and the mounting bracket 200 is easier and more labor-saving.

[0026] It is understandable that the connection portion 210 can be installed on the card reader by welding, fusion or bolt connection, as shown in FIG. Figure 2 and Figure 3 In this embodiment, the connecting portion 210 is mounted on the card reader by bolts, and the connecting portion 210 is provided with bolt holes for the bolts to pass through.

[0027] The card reader of the embodiment of the utility model comprises the above-mentioned magnetic head 100 mounting bracket 200. The magnetic head 100 is first mounted on the mounting bracket 200, and then connected to the magnetic head mounting structure on the card reader through the connecting parts 210 at both ends of the mounting bracket 200. When using the card reader of the embodiment of the utility model, there is no step difference between each track of the magnetic head 100, which can avoid scratching the magnetic stripe of the magnetic card due to the step difference.

[0028] It should be noted that in the description of the present invention, if there are any orientation descriptions, such as up, down, front, back, left, right, etc., the orientations or positional relationships indicated are all based on the orientations or positional relationships shown in the drawings. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed or operated in a specific orientation, and cannot be understood as a limitation on the present invention.

[0029] In the description of the present utility model, "several" means one or more, "more" means two or more, "greater than", "less than", "exceed" etc. are understood to exclude the number itself, and "above", "below", "within" etc. are understood to include the number itself. If there is a description of "first" or "second", it is only used to distinguish the technical features, and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0030] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0031] The above-mentioned implementation modes are only preferred implementation modes of the present invention, and cannot be used to limit the protection scope of the present invention. Any non-substantial changes and substitutions made by technicians in this field on the basis of the present invention shall fall within the scope of protection required by the present invention.

Claims

1. A magnetic head mounting structure, characterized in that: include: A magnetic head (100), wherein at least one pair of side surfaces of a housing are provided with a card slot (110); The mounting bracket (200) has connecting parts (210) for connecting to an external structure at both ends, a mounting part (220) for accommodating the magnetic head (100) at the middle, a bending part (230) being provided on at least one pair of sides of the mounting part (220), a buckle (231) matching the card slot (110) being provided on the bending part (230), and when the magnetic head (100) is mounted in the mounting bracket (200), the bending part (230) is in contact with the side of the housing on which the card slot (110) is provided, and the buckle (231) is snapped into the card slot (110).

2. The magnetic head mounting structure according to claim 1, characterized in that: The mounting portion (220) is a mounting hole that is just enough for the magnetic head (100) to pass through.

3. The magnetic head mounting structure according to claim 1, characterized in that: The bent portion (230) faces the insertion direction of the magnetic head (100).

4. The magnetic head mounting structure according to claim 1, characterized in that: An inclined surface (120) is provided at the intersection of the end surface of the shell facing the insertion direction of the magnetic head (100) and the side surface of the shell provided with the card slot (110), and an acute angle is formed between the inclined surface (120) and the insertion direction of the magnetic head (100).

5. The magnetic head mounting structure according to claim 1, characterized in that: The buckle (231) is a spring sheet arranged on the bent portion (230), the spring sheet is inclined toward the inside of the mounting portion (220), and an acute angle is formed between the spring sheet and the insertion direction of the magnetic head (100).

6. The magnetic head mounting structure according to claim 5, characterized in that: The spring sheet is punched out of the bent portion (230).

7. The magnetic head mounting structure according to claim 1, characterized in that: The connecting portion (210) is connected to the external structure via bolts.

8. A card reader, characterized in that: It comprises the magnetic head mounting structure according to any one of claims 1 to 7.

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