Smart card bending test tool and smart card bending test method

Abstract

The present application discloses a smart card bending test tool and a smart card bending test method. The smart card bending test tool comprises: a first plate body, a first surface is provided with a first fixing groove and a first opening; a second plate body, the second plate body is provided with a second opening corresponding to the first opening, a third surface is provided with a second fixing groove arranged opposite to the first fixing groove, and the second plate body is provided with a third opening; at least two connecting shafts, the second plate body can move along the extension direction of the connecting shaft; a distance measuring component, the distance measuring component includes a fixed sleeve, a micrometer sleeve and a screw, the screw can move along the extension direction of the connecting shaft, and the fixed sleeve and the micrometer sleeve include scale marks for measuring the moving distance of the screw. The smart card bending test tool provided by the embodiment of the present invention has a simple structure, is light, and is easy to carry, and can not only complete the test at room temperature. The smart card can also be tested in a low temperature box after protection, such as wearing cold-insulating gloves, for easy use.

Description

Technical Field

[0001] The present application relates to the technical field of testing tooling products, and in particular to a smart card bending testing tool and a smart card bending testing method. Background Art

[0002] In the field of smart card testing, it is necessary to perform a bending test on the card, that is, to test whether the mechanical, electrical properties and appearance of the card remain intact after being bent and deformed. The current card bending test device for smart cards is not portable enough, and cannot simulate the most stringent working conditions of smart cards to bend the card for testing. It is time-consuming and labor-intensive, and the test conditions cannot be accurately set, thus failing to meet the test requirements.

[0003] Therefore, a smart card bending test tool and a smart card bending test method are needed in the art. Summary of the invention

[0004] The embodiment of the present application provides a smart card bending test tool and a smart card bending test method. The smart card bending test tool provided by the embodiment of the present invention has a simple structure, is lightweight, and is easy to carry. It can not only complete the test at room temperature, but also can be put into a low temperature box after protection, such as wearing cold-insulating gloves, to test the smart card, which is convenient for use.

[0005] The embodiment of the present application provides a smart card bending test tool, comprising: a first plate body, comprising a first surface and a second surface opposite to each other, the first surface being provided with a first fixing groove and a first opening; a second plate body being arranged opposite to the first plate body, the second plate body being provided with a second opening corresponding to the first opening, the second plate body comprising a third surface and a fourth surface opposite to each other, the third surface being arranged opposite to the first surface, the third surface being provided with a second fixing groove opposite to the first fixing groove, the second plate body being provided with a third opening, the first fixing groove and the second fixing groove being used to jointly fix the card to be tested; at least two connecting A connecting shaft, one end of which is fixed to the first opening, and the other end extends from the second opening, and the second plate can move along the extension direction of the connecting shaft; a distance measuring component, which includes a fixed sleeve, a micrometer sleeve and a screw, the fixed sleeve and the micrometer sleeve are respectively sleeved on the outer circumference of the screw, and the fixed sleeve and the screw are threadedly connected, the micrometer sleeve and the screw are fixedly connected, the fixed sleeve is fixed to the third opening, the screw can move along the extension direction of the connecting shaft, and the fixed sleeve and the micrometer sleeve include scale marks respectively provided for measuring the moving distance of the screw.

[0006] According to the embodiment provided in the present application, the first plate body also includes a first side surface connected to the first surface and the second surface, a first fixing hole is provided on the first side surface, a first fixing pin is provided in the first fixing hole, and the first fixing pin abuts against the peripheral side of the connecting shaft.

[0007] According to the embodiment provided in the present application, a bearing is further included, wherein the bearing is arranged in the second opening, and the connecting shaft extends into the bearing and is arranged in cooperation with the bearing.

[0008] According to the embodiment provided in the present application, the second plate body also includes a second side surface connected to the third surface and the fourth surface, a second fixing hole is provided on the second side surface, a second fixing pin is provided in the second fixing hole, and the second fixing pin abuts against the peripheral side of the bearing.

[0009] According to the embodiment provided in the present application, a spring is further included, and the spring is sleeved on the outer peripheral side of the connecting shaft, and the two ends of the spring are respectively abutted against the first plate body and the second plate body.

[0010] According to the embodiment provided in the present application, a gasket is further included, and the gasket is arranged between the first surface and / or the third surface and the spring, and the connecting shaft passes through the gasket.

[0011] According to the embodiment provided in the present application, the first plate body also includes a first positioning hole, and the first positioning hole and the axis of the screw are located in the same straight line; a stop portion is provided in the first positioning hole, and the stop portion extends out of the second plate body by a predetermined distance relative to the first plate body.

[0012] According to the embodiment provided in the present application, both the first fixing groove and the second fixing groove are V-shaped grooves.

[0013] According to the embodiment provided by the present application, a first nut is also included, wherein the first nut is located on the third surface and is threadedly connected to the fixing sleeve.

[0014] Another embodiment of the present application also provides a smart card bending test method, including: providing a smart card bending test tool, the smart card bending test tool is the smart card bending test tool in any of the above embodiments; fixing the card to be tested through the first fixing groove and the second fixing groove; rotating the screw of the distance measuring assembly so that the screw is against the first surface of the first plate body, and setting the scale mark readings of the corresponding fixed sleeve and micrometer sleeve at this time to the initial zero value; substituting the test bending curvature radius and the length of the card to be tested in a flat state into a preset calculation rule to obtain a screw retraction value; rotating the screw in the opposite direction so that the screw moves away from the first plate body, and the moving distance is equal to the screw retraction value; under the action of an external force, driving the second plate body and the distance measuring assembly to move in the direction of the first plate body, the screw is against the first surface of the first plate body, so that the card to be tested is bent, and the actual bending radius of the card to be tested is equal to the test bending curvature radius.

[0015] According to another embodiment provided by the present application, the preset calculation rule is as follows:

[0016] B=A-2Rsin(90*A / (π*R))

[0017] Wherein, A is the length of the card to be tested in a flat state, B is the screw retraction value, and R is the test bending curvature radius.

[0018] According to another embodiment provided by the present application, the test bending curvature radius is greater than or equal to 10 mm and less than or equal to 30 mm.

[0019] According to another embodiment provided by the present application, the card to be tested includes a cut card body, the cut card body includes a card body and a chip arranged on the card body, the chip includes at least one central axis, and the card body is symmetrically arranged about at least one central axis of the chip.

[0020] According to another embodiment provided by the present application, in the step of providing a smart card bending test tool, it includes: the first plate body of the smart card bending test tool also includes a first positioning hole, the first positioning hole and the axis of the screw are located in the same straight line, a stop portion is provided in the first positioning hole, and the stop portion extends out of the second plate body by a predetermined distance relative to the first plate body; in the step of rotating the screw of the distance measuring component so that the screw is against the first surface of the first plate body, and setting the scale marking readings of the corresponding fixed sleeve and micrometer sleeve at this time to an initial zero value, it includes: rotating the screw of the distance measuring component so that the screw is against the stop portion on the first surface of the first plate body. The step of driving the second plate body and the distance measuring assembly to move toward the direction of the first plate body under the action of an external force, and the screw rod abuts against the first surface of the first plate body so that the card to be tested is bent, and the actual bending radius of the card to be tested is equal to the test bending curvature radius includes: driving the second plate body and the distance measuring assembly to move toward the direction of the first plate body under the action of an external force, and the screw rod abuts against the stop portion of the first surface of the first plate body so that the card to be tested is bent, and the actual bending radius of the card to be tested is equal to the test bending curvature radius.

[0021] The smart card bending test tool provided by the embodiment of the present invention comprises a first plate body, a second plate body, a connecting shaft and a distance measuring component. The second plate body and the first plate body are arranged opposite to each other, and the second plate body can move relative to the first plate body along the extension direction of the connecting shaft, that is, under the action of external force, the second plate body can move in the direction away from the first plate body, or in the direction close to the first plate body. The two ends of the card to be tested are respectively fixed to the first fixing groove and the second fixing groove. The distance measuring component can be used to move the second plate body by a predetermined distance, and the predetermined distance is the moving distance required for the card to be tested to reach the test bending curvature radius. The second plate body is moved in the direction where the first plate body is located, and then the card to be tested is squeezed, so that the card to be tested is bent to reach the test bending curvature radius, which is convenient for subsequent bending tests, that is, after the card to be tested is bent to reach the test bending curvature radius, its mechanical, electrical properties and appearance are tested to see whether they remain intact. The smart card bending test tool provided by the embodiment of the present invention has a simple structure, is light, and is easy to carry. It can not only complete the test at room temperature, but also can be put into a low temperature box after protection, such as wearing cold-insulating gloves, to test the smart card, which is convenient for use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the drawings required for use in the embodiments of the present application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0023] Figure 1 This is a structural schematic diagram of a smart card bending test tooling according to an embodiment of the present application;

[0024] Figure 2 is an exploded view of a smart card bending test tooling according to an embodiment of the present application;

[0025] Figure 3 This is a schematic structural diagram of a first plate body and a second plate body according to an embodiment of the present application;

[0026] Figure 4 is a structural schematic diagram of a distance measuring component according to an embodiment of the present application;

[0027] Figure 5 is a cross-sectional view of a distance measuring component according to an embodiment of the present application;

[0028] Figure 6 is a structural schematic diagram of a smart card bending test tool according to another embodiment of the present application;

[0029] Figure 7 It is a structural schematic diagram of a smart card bending test tool according to another embodiment of the present application;

[0030] Figure 8 It is a structural schematic diagram of a smart card bending test tool according to another embodiment of the present application;

[0031] Fig. 9 It is a schematic diagram of the test bending curvature radius of the card to be tested in one embodiment of the present application;

[0032] Fig.10 is a flow chart of a smart card bending test method of a smart card bending test tool according to an embodiment of the present application;

[0033] Fig.11 is a schematic diagram of the structure of a card to be tested according to an embodiment of the present application;

[0034] Fig.12 It is a schematic diagram of the structure of a card to be tested according to another embodiment of the present application.

[0035] 1. first plate; 101. first fixing groove; 102. first fixing hole; 103. first opening; 104. first positioning hole;

[0036] 2. Second plate; 201. Second fixing groove; 202. Second fixing hole; 203. Second opening; 204. Third opening;

[0037] 3. Distance measuring assembly; 31. Fixed sleeve; 32. Micrometer sleeve; 33. Screw;

[0038] 4. Stopper; 5. Fixing pin; 51. First fixing pin; 52. Second fixing pin; 6. Washer; 7. Connecting shaft; 8. Spring; 9. First nut; 10. Bearing;

[0039] K, card to be tested; K1, chip; K2, card body; Z, center axis. DETAILED DESCRIPTION

[0040] The features and exemplary embodiments of various aspects of the present application will be described in detail below. In the following detailed description, many specific details are proposed in order to provide a comprehensive understanding of the present application. However, it is obvious to those skilled in the art that the present application can be implemented without some of these specific details. The following description of the embodiments is only intended to provide a better understanding of the present application by showing examples of the present application.

[0041] It should be noted that, in the absence of conflict, the embodiments and features in the embodiments of the present application can be combined with each other. The embodiments will be described in detail below in conjunction with the accompanying drawings.

[0042] Relational terms such as first and second, etc., are used only to distinguish one entity or operation from another entity or operation; they do not necessarily require or imply any such actual relationship or order between these entities or operations. Moreover, the terms "include", "comprises" or any other variations thereof are intended to cover non-exclusive inclusion; so that a process, method, article or apparatus that includes a series of elements includes not only those elements; but also includes other elements not explicitly listed; or also includes elements inherent to such process, method, article or apparatus. In the absence of more limitations; the elements defined by the sentence "comprises..."; does not exclude the existence of other identical elements in the process, method, article or apparatus that includes the elements.

[0043] It should be understood that when describing the structure of a component, when a layer or a region is referred to as being "on" or "over" another layer or region, it may mean that it is directly on the other layer or region, or that other layers or regions are included between it and the other layer or region. Furthermore, if the component is turned over, the layer or region will be "below" or "beneath" another layer or region.

[0044] In addition, the term "and / or" in this article is only a description of the association relationship of the associated objects, indicating that there can be three relationships. For example, A and / or B can represent: A exists alone; A and B exist at the same time; B exists alone. In addition, the character " / " in this article generally indicates that the associated objects before and after are in an "or" relationship.

[0045] It should be understood that in the embodiment of the present application, "B corresponding to A" means that B is associated with A and B can be determined according to A. However, it should also be understood that determining B according to A does not mean determining B only according to A; B can also be determined according to A and / or other information.

[0046] See also Figure 1 to Figure 2 , Figure 1 This is a structural schematic diagram of a smart card bending test tooling according to an embodiment of the present application; Figure 2 It is an exploded view of a smart card bending test tooling according to an embodiment of the present application.

[0047] The embodiment of the present application provides a smart card bending test tool, including: a first plate body 1, including a first surface and a second surface relative to each other, the first surface is provided with a first fixing groove 101 and a first opening 103; a second plate body 2, arranged relative to the first plate body 1, the second plate body 2 is provided with a second opening 203 corresponding to the first opening 103, the second plate body 2 includes a third surface and a fourth surface relative to each other, the third surface is arranged relative to the first surface, the third surface is provided with a second fixing groove 201 arranged relative to the first fixing groove 101, the second plate body 2 is provided with a third opening 204, the first fixing groove 101 and the second fixing groove 201 are used to jointly fix the card K to be tested; at least two A connecting shaft 7, one end of the connecting shaft 7 is fixed to the first opening 103, and the other end extends from the second opening 203, and the second plate body 2 can move along the extension direction of the connecting shaft 7; a distance measuring component 3, the distance measuring component 3 includes a fixed sleeve 31, a micrometer sleeve 32 and a screw 33, the fixed sleeve 31 and the micrometer sleeve 32 are respectively sleeved on the outer periphery of the screw 33, and the fixed sleeve 31 and the screw 33 are threadedly connected, the micrometer sleeve 32 and the screw 33 are fixedly connected, the fixed sleeve 31 is fixed to the third opening 204, the screw 33 can move along the extension direction of the connecting shaft 7, and the fixed sleeve 31 and the micrometer sleeve 32 include scale marks respectively provided with for measuring the moving distance of the screw 33.

[0048] The smart card bending test tool provided by the embodiment of the present invention includes a first plate body 1, a second plate body 2, a connecting shaft 7 and a distance measuring component 3. The second plate body 2 and the first plate body 1 are arranged opposite to each other, and the second plate body 2 can move relative to the first plate body 1 along the extension direction of the connecting shaft 7, that is, under the action of an external force, the second plate body 2 can move in a direction away from the first plate body 1, or in a direction close to the first plate body 1. The two ends of the card K to be tested are respectively fixed to the first fixing groove 101 and the second fixing groove 201. The distance measuring component 3 can be used to move the second plate body 2 by a predetermined distance, and the predetermined distance is the moving distance required for the card K to be tested to reach the test bending curvature radius. The second plate body 2 is moved in the direction of the first plate body 1, and then the card K to be tested is squeezed, so that the card K to be tested is bent to reach the test bending curvature radius, which is convenient for subsequent bending tests, that is, after the card K to be tested is bent to reach the test bending curvature radius, its mechanical and electrical properties and appearance are tested to see whether they remain intact. The smart card bending test tool provided by the embodiment of the present invention has a simple structure, is light, and is easy to carry, and can not only complete the test at room temperature. The smart card can also be tested after being protected, such as by wearing cold-insulating gloves, in a low-temperature box for easy use.

[0049] In this embodiment, the size, shape and material of the first plate body 1 and the second plate body 2 are not particularly limited, as long as they can effectively fix the card K to be tested and realize the relative movement of the second plate body 2 and the first plate body 1. For example, the first plate body 1 and the second plate body 2 can be rectangular plates of the same material and size to reduce costs.

[0050] The second plate body 2 can be sleeved on the outer periphery of the connecting shaft 7 through the second opening 203 and move along the connecting shaft 7 . The connecting shaft 7 can specifically be an optical axis to facilitate the movement of the second plate body 2 .

[0051] See also Figures 4 to 5 It should be noted that the distance measuring assembly 3 includes a fixed sleeve 31, a micrometer sleeve 32 and a screw 33. The screw 33 and the micrometer sleeve 32 are fixedly connected and can rotate together relative to the fixed sleeve 31. While rotating, the screw 33 can also move in a direction away from the first plate body 1 or in a direction close to the first plate body 1. The positions of the scale marks on the fixed sleeve 31 and the micrometer sleeve 32 change accordingly with the movement of the screw 33 to indicate the moving distance of the screw 33 along the extension direction of the connecting shaft 7.

[0052] The third opening 204 may be a threaded hole. A corresponding external thread is provided on the outer surface of the fixing sleeve 31 so that the fixing sleeve 31 and the second plate body 2 can be threadedly connected.

[0053] The use process of the smart card bending test tool provided in the embodiment of the present invention is as follows:

[0054] First, the card K to be tested is fixed through the first fixing groove 101 and the second fixing groove 201. At this time, the card K to be tested is in a flat state, that is, the card K to be tested is not bent;

[0055] Afterwards, the screw 33 of the distance measuring assembly 3 is rotated so that the screw 33 abuts against the stop portion 4 of the first surface of the first plate body 1, and the scale marking readings of the corresponding fixed sleeve 31 and micrometer sleeve 32 are set to the initial zero value, such as Figure 6 As shown;

[0056] Then, the test bending curvature radius and the length of the card K to be tested in the flat state are substituted into the preset calculation rule to obtain the retraction value of the screw 33;

[0057] The screw rod 33 is rotated in the opposite direction to move the screw rod 33 away from the first plate body 1, and the moving distance is equal to the retraction value of the screw rod 33. Figure 7 As shown;

[0058] Under the action of external force, the second plate 2 and the distance measuring assembly 3 are driven to move toward the direction of the first plate 1, and the screw 33 abuts against the stopper 4 on the first surface of the first plate 1 to bend the card K to be tested. The actual bending radius of the card K to be tested is equal to the test bending curvature radius. Figure 8 shown.

[0059] In this embodiment, the distance measuring component 3 is used to accurately adjust the distance that the screw rod 33 moves in the direction away from the first plate body 1, so that the actual bending radius of the card K to be tested when bent is exactly equal to the test bending curvature radius, which is convenient for subsequent testing of the mechanical, electrical performance and appearance of the card K to be tested bent to the test bending curvature radius. For example, the packaging strength of the chip K1 strip welding surface and the milling groove support surface of the card K2 of the card K to be tested can be verified, whether the electrical function of the chip K1 module is normal and whether the appearance of the chip K1 and the card body K2 after bending is normal.

[0060] Optionally, the test bend curvature radius is greater than or equal to 10 mm and less than or equal to 30 mm. For example, the test bend curvature radius can be equal to any one of 12 mm, 14 mm, 16 mm, 18 mm, 20 mm, and 25 mm. Optionally, the test bend curvature radius can also be set to any desired value.

[0061] The default calculation rules are as follows:

[0062] B=A-2Rsin(90*A / (π*R))

[0063] Wherein, A is the length of the card K to be tested in a flat state, B is the retraction value of the screw 33, and R is the test bending curvature radius.

[0064] See also Fig. 9, the length of the card K to be tested in the flat state is known to be A, and the test bending curvature radius is set to R,

[0065] Then the central angle n = 180*A / (π*R)

[0066] Chord length AB = 2Rsin(n / 2)

[0067] Above, substitute the central angle n

[0068] We get AB=2Rsin(180*A / (π*R) / 2), and we get the above B=A-2Rsin(90*A / (π*R)).

[0069] It should be noted that the length of the card K to be tested in the flat state and the test bending curvature radius are both known constants. Therefore, the above-mentioned A value and R value are substituted into the preset calculation rule to obtain the B value required by the preset calculation rule, and then the screw 33 is rotated in the opposite direction according to the B value to move the screw 33 in the direction away from the first plate body 1, and the moving distance is equal to the retraction value of the screw 33. Thereafter, the second plate body 2 and the distance measuring component 3 are moved in the direction of the first plate body 1 by an external force such as manpower, and the screw 33 is pressed against the stop portion 4 on the first surface of the first plate body 1. Under the extrusion of the second plate body 2, the card K to be tested changes from the flat state to the bent state, and the actual bending radius is equal to the test bending curvature radius.

[0070] Optionally, both B value and A value can be accurate to 2 decimal places to ensure more accurate testing.

[0071] See also Figures 1 to 3 In some optional embodiments, the first plate body 1 also includes a first side surface connected to the first surface and the second surface, a first fixing hole 102 is provided on the first side surface, a first fixing pin 51 is provided in the first fixing hole 102, and the first fixing pin 51 abuts against the peripheral side of the connecting shaft 7.

[0072] It is understandable that since the connecting shaft 7 usually adopts a cylindrical structure, it may rotate itself. In order to prevent the connecting shaft 7 from rotating, in this embodiment, a first fixing hole 102 is set on the first side of the first plate body 1, and a first fixing pin 51 is set in the first fixing hole 102. The first fixing pin 51 is used to limit the rotational freedom of the connecting shaft 7, thereby improving the stability and reliability of the smart card bending test tooling.

[0073] Of course, in addition to the first fixing pin 51, other fixing methods may be used to fix the connecting shaft 7, such as thread, fixing block and / or welding.

[0074] Optionally, the smart card bending test tool further includes a bearing 10 , which is disposed in the second opening 203 , and the connecting shaft 7 extends into the bearing 10 and is arranged in cooperation with the bearing 10 .

[0075] In this embodiment, the bearing 10 can be a linear bearing 10 to improve the smoothness of the second plate 2 when moving along the connecting shaft 7, making it easier for the user to push the second plate 2 and ensuring the accuracy of the moving distance of the second plate 2.

[0076] See also Figures 1 to 3 In some optional embodiments, the second plate body 2 also includes a second side surface connected to the third surface and the fourth surface, a second fixing hole 202 is provided on the second side surface, a second fixing pin 52 is provided in the second fixing hole 202, and the second fixing pin 52 abuts against the peripheral side of the bearing 10.

[0077] It can be understood that since a bearing 10 is provided in the second opening 203 of the second plate body 2, and the bearing 10 is sleeved on the connecting shaft 7, the second fixing pin 52 will directly abut against the circumference of the bearing 10 rather than the circumference of the connecting shaft 7, so as to utilize the second fixing pin 52 to limit and fix the bearing 10.

[0078] See also Figure 1 to Figure 2 Optionally, the smart card bending test fixture further includes a spring 8, which is sleeved on the outer peripheral side of the connecting shaft 7, and the two ends of the spring 8 are respectively in contact with the first plate body 1 and the second plate body 2.

[0079] In this embodiment, the two ends of the spring 8 are respectively in contact with the first plate 1 and the second plate 2. When the second plate 2 moves toward the first plate 1, the spring 8 will be compressed. After the bending test of the card K to be tested is completed, the second plate 2 can automatically return to the initial position under the elastic restoring force of the spring 8, which is convenient for repeated testing of the card K to be tested for a specified number of times and subsequent testing of other cards K to be tested. The spring 8 is sleeved on the outer peripheral side of the connecting shaft 7, that is, the connecting shaft 7 is located inside the spring 8. The connecting shaft 7 can also limit the compression deformation direction of the spring 8, thereby improving the measurement accuracy of the smart card bending test fixture.

[0080] See also Figure 1 to Figure 2 In some optional embodiments, the smart card bending test tool further includes a gasket 6 , which is disposed between the first surface and / or the third surface and the spring 8 , and the connecting shaft 7 passes through the gasket 6 .

[0081] It can be understood that the spacer 6 is provided between the first plate 1 and the spring 8, which can improve the stability of the spring 8 and prevent the spring 8 from twisting and deforming, so that the second plate 2 can accurately move along the extension direction of the connecting shaft 7. Similarly, the spacer 6 is provided between the second plate 2 and the spring 8, which can also improve the stability of the spring 8 at the end close to the second plate 2. The spacer 6 can be made of rubber, metal and other materials, without special limitation. The spacer 6 can be a closed ring structure, so that the connecting shaft 7 can pass through the spacer 6.

[0082] See also Figures 1 to 3 In some optional embodiments, the first plate body 1 also includes a first positioning hole 104, the first positioning hole 104 and the axis of the screw rod 33 are located in the same straight line, a stop portion 4 is provided in the first positioning hole 104, and the stop portion 4 extends outward toward the second plate body 2 by a predetermined distance relative to the first plate body 1, wherein the predetermined distance can be any number 0 or greater than 0, when the predetermined distance is 0, a side surface of the stop portion 4 facing the second plate body 2 is flush with the first surface of the first plate body 1, and when the predetermined distance is greater than 0, a side surface of the stop portion 4 facing the second plate body 2 is protruded relative to the third surface of the first plate body 1 facing the second plate body 2.

[0083] It should be noted that in order to ensure that the screw 33 accurately abuts against the first plate body 1, a first positioning hole 104 located in the same straight line as the axis of the screw 33 and a stop portion 4 located in the first positioning hole 104 can be provided on the first plate body 1, so that the screw 33 can just contact the stop portion 4 when moving toward the first plate body 1, thereby ensuring that the screw 33 moves along a preset trajectory without deviation, thereby improving the accuracy of the measurement.

[0084] In this embodiment, the stopper 4 extends outwardly toward the second plate body 2 by a predetermined distance relative to the first plate body 1 , that is, the stopper 4 is flush with or protrudes relative to the first plate body 1 to facilitate contact with the screw rod 33 .

[0085] See also Figures 1 to 3 In some optional embodiments, the first fixing groove 101 and the second fixing groove 201 are both V-shaped grooves. Optionally, the plane forming the V-shaped groove has a certain inclination angle with the horizontal plane to facilitate accommodating the bent card K to be tested.

[0086] Optionally, the smart card bending test tool further includes a first nut 9, which is located on the third surface and is threadedly connected to the fixing sleeve 31.

[0087] The first nut 9 is provided to further fix the fixing sleeve 31 , thereby ensuring the stability of the fixing sleeve 31 and preventing the fixing sleeve 31 from moving when the screw rod 33 moves, thereby ensuring the accuracy of the test.

[0088] In this embodiment, a single smart card bending test tool can be used, or two smart card bending test tools can be used for testing at the same time; when two smart card bending test tools are used for testing at the same time, they can be set to confirm the same test bending curvature radius or compare different test bending curvature radii. Optionally, when two cards K to be tested are tested at the same time, if they pass the test or fail at the same time, the consistency of the test is proved.

[0089] See also Fig.10 The embodiment of the present invention further provides a smart card bending test method, comprising:

[0090] S110: Provide a smart card bending test tool, which is any of the smart card bending test tools in the above embodiments, such as Figures 1 to 5 As shown;

[0091] S120: Fix the card K to be tested through the first fixing slot 101 and the second fixing slot 201;

[0092] S130: Rotate the screw 33 of the distance measuring assembly 3 so that the screw 33 abuts against the first surface of the first plate 1, and set the corresponding scale marking readings of the fixed sleeve 31 and the micrometer sleeve 32 to the initial zero value, such as Figure 6 As shown;

[0093] S140: Substituting the test bending curvature radius and the length of the card K to be tested in a flat state into a preset calculation rule to obtain a retraction value of the screw 33;

[0094] S150: Rotate the screw rod 33 in the opposite direction to move the screw rod 33 away from the first plate body 1, and the moving distance is equal to the retraction value of the screw rod 33. Figure 7 As shown;

[0095] S160: Under the action of external force, the second plate 2 and the distance measuring assembly 3 are driven to move in the direction of the first plate 1, and the screw 33 is pressed against the first surface of the first plate 1 to bend the card K to be tested. The actual bending radius of the card K to be tested is equal to the test bending curvature radius. Figure 8 shown.

[0096] In the smart card bending test method provided by the embodiment of the present invention, the second plate body 2 and the first plate body 1 are arranged opposite to each other, and the second plate body 2 can move relative to the first plate body 1 along the extension direction of the connecting shaft 7, that is, under the action of external force, the second plate body 2 can move in the direction away from the first plate body 1, or in the direction close to the first plate body 1, and the two ends of the card K to be tested are respectively fixed to the first fixing groove 101 and the second fixing groove 201. The distance measuring component 3 can be used to move the second plate body 2 by a predetermined distance, and the predetermined distance is the moving distance required for the card K to be tested to reach the test bending curvature radius. The second plate body 2 is moved in the direction of the first plate body 1, and then the card K to be tested is squeezed, so that the card K to be tested is bent to reach the test bending curvature radius, which is convenient for subsequent bending tests, that is, after the card K to be tested is bent to reach the test bending curvature radius, its mechanical and electrical properties and appearance are tested to see whether they remain intact. The smart card bending test tooling provided by the embodiment of the present invention has a simple structure, is light, and is easy to carry, and can not only complete the test at room temperature. The smart card can also be tested after being protected, such as by wearing cold-insulating gloves, in a low-temperature box for easy use.

[0097] In step S110, the smart card bending test fixture includes a first plate body 1, a second plate body 2, a connecting shaft 7, and a distance measuring component 3. Optionally, the first plate body 1 of the smart card bending test fixture further includes a first positioning hole 102, the first positioning hole 102 and the axis of the screw 33 are located in the same straight line, and a stop portion 4 is provided in the first positioning hole 102, and the stop portion 4 extends outward from the first plate body 1 to the second plate body 2 by a predetermined distance.

[0098] In step S120, the card K to be tested may include a card body K2 and a chip K1 module located on the card body K2. The card K to be tested may be an original card that has not been cut, or may be a cut card body K2. For example, the card K to be tested includes a cut card body K2, which includes a card body K2 and a chip K1 disposed on the card body K2. The chip K1 includes at least one central axis Z, and the card body K2 is arranged to be equal in length to the central axis Z of the at least one chip K1. Fig.11 or Fig.12 As shown, Fig.11 and Fig.12 The cutting of the card body K2 about different center axes Z of the chip K1 is shown respectively.

[0099] The inventors have found that, because the chip K1 is not packaged in the center of the card body K2, the force exerted on the chip K1 by the current dynamic bending and twisting machine is asymmetric. In practice, the bending stress is the largest at the location where the card has the largest curvature, i.e., the center. Therefore, this embodiment tests the card K to be tested by cutting it into a structure with the chip K1 as the center to simulate the most stringent actual use conditions.

[0100] In step S130, after the screw 33 of the distance measuring assembly 3 is rotated, the screw 33 moves along the extension direction of the connecting shaft 7 toward the direction of the first plate body 1, and the screw 33 abuts against the stop portion 4 on the first surface of the first plate body 1. The card K to be tested is in a flat state and is clamped and fixed by the first fixing groove 101 and the second fixing groove 201. At this time, the scale marking readings of the corresponding fixed sleeve 31 and the micrometer sleeve 32 are set to the initial zero value.

[0101] In step S140, the following preset calculation rules may be used:

[0102] B=A-2Rsin(90*A / (π*R))

[0103] Wherein, A is the length of the card K to be tested in a flat state, B is the retraction value of the screw 33, and R is the test bending curvature radius.

[0104] The length of the card K to be tested in the flat state and the test bending curvature radius are both known constants. Therefore, the above-mentioned A value and R value are substituted into the preset calculation rule to obtain the B value required by the preset calculation rule, and then the screw 33 is rotated in the opposite direction according to the B value to move the screw 33 in the direction away from the first plate body 1, and the moving distance is equal to the retraction value of the screw 33. Then, the second plate body 2 and the distance measuring component 3 are moved in the direction of the first plate body 1 by an external force such as manpower, and the screw 33 is pressed against the stop portion 4 on the first surface of the first plate body 1. Under the extrusion of the second plate body 2, the card K to be tested changes from the flat state to the bent state, and the actual bending radius is equal to the test bending curvature radius.

[0105] Optionally, both B value and A value can be accurate to 2 decimal places to ensure more accurate testing.

[0106] In step S150, the screw rod 33 is rotated in the opposite direction to move the screw rod 33 away from the first plate body 1, leaving space for the second plate body 2 to move toward the first plate body 1, and the movement distance of the screw rod 33 away from the first plate body 1 is the distance that the second plate body 2 needs to move in order for the plate body to achieve the test bending curvature radius.

[0107] In step S160, the test bend curvature radius may be greater than or equal to 10 mm and less than or equal to 30 mm. Optionally, the test bend curvature radius may be greater than or equal to 10 mm and less than or equal to 30 mm. For example, the test bend curvature radius may be equal to any one of 12 mm, 14 mm, 16 mm, 18 mm, 20 mm, and 25 mm. Optionally, the test bend curvature radius may also be set to any desired value.

[0108] The above is only a specific implementation of the present application, but the protection scope of the present application is not limited thereto. Any technician familiar with the technical field can easily think of various equivalent modifications or replacements within the technical scope disclosed in the present application, and these modifications or replacements should be included in the protection scope of the present application. Therefore, the protection scope of the present application shall be based on the protection scope of the claims.

Claims

1. A smart card bending test tool, characterized in that: include: A first plate body, comprising a first surface and a second surface opposite to each other, wherein the first surface is provided with a first fixing groove and a first opening; A second plate body is arranged opposite to the first plate body, the second plate body is provided with a second opening corresponding to the first opening, the second plate body comprises a third surface and a fourth surface opposite to each other, the third surface is arranged opposite to the first surface, the third surface is provided with a second fixing groove opposite to the first fixing groove, the second plate body is provided with a third opening, the first fixing groove and the second fixing groove are used to fix the card to be tested together; at least two connecting shafts, one end of each connecting shaft is fixed to the first opening, and the other end extends from the second opening, and the second plate body is movable along the extension direction of the connecting shaft; A distance measuring assembly, the distance measuring assembly comprising a fixed sleeve, a micrometer sleeve and a screw, the fixed sleeve and the micrometer sleeve are respectively sleeved on the outer circumference of the screw, and the fixed sleeve and the screw are threadedly connected, the micrometer sleeve and the screw are fixedly connected, the fixed sleeve is fixed to the third opening, the screw can move along the extension direction of the connecting shaft, and the fixed sleeve and the micrometer sleeve include scale marks respectively provided for measuring the moving distance of the screw.

2. The smart card bending test tool according to claim 1, characterized in that: The first plate body further includes a first side surface connected to the first surface and the second surface. A first fixing hole is provided on the first side surface. A first fixing pin is provided in the first fixing hole. The first fixing pin abuts against the peripheral side of the connecting shaft.

3. The smart card bending test tool according to claim 1, characterized in that: It also includes a bearing, which is arranged in the second opening, and the connecting shaft extends into the bearing and is arranged in cooperation with the bearing.

4. The smart card bending test tool according to claim 3, characterized in that: The second plate body further includes a second side surface connected to the third surface and the fourth surface. A second fixing hole is provided on the second side surface. A second fixing pin is provided in the second fixing hole. The second fixing pin abuts against the peripheral side of the bearing.

5. The smart card bending test tool according to claim 1, characterized in that: It also includes a spring, which is sleeved on the outer peripheral side of the connecting shaft, and two ends of the spring are respectively in contact with the first plate body and the second plate body.

6. The smart card bending test tool according to claim 5, characterized in that: It also includes a gasket, which is arranged between the first surface and / or the third surface and the spring, and the connecting shaft passes through the gasket.

7. The smart card bending test tool according to claim 1, characterized in that: The first plate body further includes a first positioning hole, wherein the first positioning hole and the axis of the screw are located in the same straight line; A stop portion is disposed in the first positioning hole, and the stop portion extends outward from the second plate body relative to the first plate body by a predetermined distance.

8. The smart card bending test tool according to claim 1, characterized in that: The first fixing groove and the second fixing groove are both V-shaped grooves.

9. The smart card bending test tool according to claim 1, characterized in that: It also includes a first nut, which is located on the third surface and is threadedly connected to the fixing sleeve.

10. A smart card bending test method, characterized in that: include: Providing a smart card bending test tool, wherein the smart card bending test tool is the smart card bending test tool according to any one of claims 1 to 9; Fixing the card to be tested through the first fixing slot and the second fixing slot; Rotate the screw of the distance measuring assembly so that the screw abuts against the first surface of the first plate, and set the corresponding scale marking readings of the fixed sleeve and the micrometer sleeve to an initial zero value; Substitute the test bending curvature radius and the length of the card to be tested in a flat state into the preset calculation rule to obtain the screw retraction value; Rotate the screw in the opposite direction to move the screw away from the first plate, and the moving distance is equal to the screw retraction value; Under the action of external force, the second plate and the distance measuring assembly are driven to move toward the direction of the first plate, and the screw rod abuts against the first surface of the first plate to bend the card to be tested, and the actual bending radius of the card to be tested is equal to the test bending curvature radius.

11. The smart card bending test method according to claim 10, characterized in that: The preset calculation rules are as follows: B=A-2Rsin(90*A / (π*R)) Wherein, A is the length of the card to be tested in a flat state, B is the screw retraction value, and R is the test bending curvature radius.

12. The smart card bending test method according to claim 10, characterized in that: The test bending curvature radius is greater than or equal to 10 mm and less than or equal to 30 mm.

13. The smart card bending test method according to claim 10, characterized in that: The card to be tested comprises a cut card body, the cut card body comprises a card body and a chip arranged on the card body, the chip comprises at least one central axis, and the card body is symmetrically arranged about the at least one central axis of the chip.

14. The smart card bending test method according to claim 10, characterized in that: The step of providing a smart card bending test fixture includes: the first plate body of the smart card bending test fixture further includes a first positioning hole, the first positioning hole and the axis of the screw are located in the same straight line, a stop portion is provided in the first positioning hole, and the stop portion extends out of the second plate body by a predetermined distance relative to the first plate body; The step of rotating the screw of the distance measuring assembly so that the screw abuts against the first surface of the first plate body and setting the corresponding scale mark readings of the fixed sleeve and the micrometer sleeve as the initial zero value comprises: rotating the screw of the distance measuring assembly so that the screw abuts against the stop portion of the first surface of the first plate body and setting the corresponding scale mark readings of the fixed sleeve and the micrometer sleeve as the initial zero value; The step of driving the second plate and the distance measuring assembly to move toward the direction of the first plate under the action of an external force, the screw rod abutting against the first surface of the first plate to bend the card to be tested, and the actual bending radius of the card to be tested being equal to the test bending curvature radius, includes: driving the second plate and the distance measuring assembly to move toward the direction of the first plate under the action of an external force, the screw rod abutting against the stop portion of the first surface of the first plate to bend the card to be tested, and the actual bending radius of the card to be tested being equal to the test bending curvature radius.

Images