Test paper identification connector and in-vitro detector

Abstract

The utility model relates to the technical field of in-vitro rapid diagnosis and detection, and discloses a test paper identification connector and an in-vitro detector.The test paper identification connector comprises a body and a plurality of signal terminals, the body is provided with a containing cavity and a plug-in port communicated with the containing cavity, and the signal terminals are arranged in the containing cavity; the plugging port is located at the front end of the body and used for allowing the test paper to be inserted into the containing cavity, and each signal terminal is provided with a conductive section located in the containing cavity and used for making contact with the conductive position of the test paper and an electricity connection section at least partially located outside the body. The plurality of conductive sections are located on the same side of the test paper and are divided into at least three rows in the first direction, so that only a conductive position needs to be printed on a single side face of the test paper, the production efficiency of the test paper is improved, the production cost of the test paper is reduced, and the electric conduction stability of the test paper and the test paper identification connector is improved; the in-vitro detector comprises a circuit board and the test paper identification connector, and the electric connection section is electrically connected with the circuit board.

Description

Technical Field

[0001] The present application belongs to the technical field of rapid in vitro diagnostic testing, and specifically relates to a test paper identification connector and an in vitro detector. Background Art

[0002] With the advancement of science and technology, new detection methods and technologies continue to emerge, making the detection of analytes in the body faster, more accurate and more convenient. Blood glucose meter is one of them.

[0003] In the field of in vitro rapid diagnosis, including blood sugar, uric acid, ketone bodies, cholesterol and other detection and analysis based on electrochemical principles, consumables such as test paper are usually used to detect biological samples such as blood. Different types of tests require different types of test paper. Various types of test paper are used in conjunction with corresponding in vitro detectors. The detectors may include, for example, blood sugar detectors, uric acid detectors or multi-function detectors. In particular, the existing multi-function detectors need to be equipped with multiple different identification sockets to match different test strips. This design will inevitably lead to the detector being bulky and inconvenient for users to operate. At the same time, the test paper needs to be corrected for different test results due to different models, production processes and batches. Different types of test paper will generate correction codes for different batches. It is a technical development trend in this field to realize multiple types of in vitro rapid diagnostic tests with one detector. Therefore, the identification connector of the detector must be able to distinguish different batches of test papers and simultaneously identify different types of test papers. This will inevitably require more identification signal pins to be enabled between the test paper and the identification connector. Without increasing the size of the identification connector, how to design more signal pins on the detector identification connector becomes a problem that needs to be solved by the utility model.

[0004] When using an in vitro detector to detect an analyte, it is necessary to first sample the sample through a test paper, and then insert the sampled test paper into the connector of the in vitro detector to make the test paper electrically conductive with the connector. A plurality of signal terminals for contacting the conductive bits of the test paper are arranged inside the connector, and the plurality of signal terminals are respectively located on opposite sides of the test paper. Such an arrangement requires printing conductive bits on both sides of the test paper, which makes the production process of the test paper more complicated, thereby affecting the production efficiency of the test paper and causing the production cost of the test paper to be higher. At the same time, since there are a large number of test papers on each side, and the plurality of signal terminals located on each side of the test paper are arranged in sequence along the width direction of the test paper, the width of each conductive bit on the test paper is smaller, resulting in a smaller connection area between each conductive bit and the signal terminal, thereby affecting the electrical conductivity stability between the test paper and the connector. Utility Model Content

[0005] The present application provides a test paper identification connector and an in vitro detector to improve the production efficiency of the test paper and reduce the production cost of the test paper, and increase the electrical conduction stability between the test paper and the connector.

[0006] The technical solution adopted in this application is:

[0007] A test paper identification connector, comprising:

[0008] A body, which has a receiving cavity and an insertion port communicated with the receiving cavity, wherein the insertion port is located at the front end of the body and is used for inserting the test paper into the receiving cavity;

[0009] A plurality of signal terminals are provided, each of which has a conductive segment located in the accommodating cavity and used to contact the conductive position of the test paper, and a conductive segment at least partially located outside the body, and the plurality of conductive segments are located on the same side of the test paper and are divided into at least three rows in the first direction.

[0010] By adopting the above technical solution, when using an in vitro detector equipped with a test paper identification connector in the present application, first use the test paper for sampling, and then insert the sampled test paper into the accommodating cavity via the plug interface, so that the conductive position on the test paper is in contact with the conductive segment, so that the test paper is electrically connected to the main control circuit of the in vitro detector through the test paper identification connector, and since multiple conductive segments are located on the same side of the test paper, it is only necessary to print the conductive position on a single side of the test paper, while increasing the safety distance between the conductive positions, reducing the production process and assembly complexity of the test paper, thereby improving the production efficiency of the test paper and reducing the production cost of the test paper. In addition, multiple conductive segments are located on the same side of the test paper, so that the forces applied by multiple conductive segments to the test paper are all toward one side, thereby increasing the connection stability between the test paper and the test paper identification connector. At the same time, multiple conductive segments are divided into at least three rows in the first direction, so that the number of conductive segments in the same row is small, so that the width of each conductive position on the test paper can be made larger, so as to increase the connection area that each conductive position can be connected to the conductive segment, thereby increasing the electrical conduction stability between the test paper and the test paper identification connector.

[0011] Optionally, the plurality of signal terminals are arranged in layers in the second direction, so that the plurality of signal terminals are divided into upper layer signal terminals and lower layer signal terminals located below the upper layer signal terminals.

[0012] By adopting the above technical solution, since the multiple signal terminals are arranged in layers in the second direction, the conductive segment of each signal terminal can be made larger to increase the connection area between the conductive segment and the test paper, thereby further ensuring the electrical conduction stability between the conductive segment and the test paper. At the same time, the space in the second direction can be reasonably utilized to make the layout of the multiple signal terminals more reasonable, reduce the difficulty of assembling the signal terminals, and thus improve the assembly efficiency of the test paper identification connector and reduce the assembly cost of the test paper identification connector.

[0013] Optionally, the plurality of conductive segments are divided into a first conductive segment provided at the upper signal terminal, a second conductive segment provided at the upper signal terminal, and a third conductive segment provided at the lower signal terminal, and the first conductive segment, the second conductive segment, and the third conductive segment are sequentially arranged in the first direction.

[0014] By adopting the above technical solution, since the first conductive segment, the second conductive segment and the third conductive segment are arranged in sequence in the first direction and the first conductive segment and the second conductive segment are arranged at the upper signal terminal, and the third conductive segment is arranged at the lower signal terminal, the third conductive segment forms an avoidance with the first conductive segment and the second conductive segment, thereby reducing the risk of the third conductive segment contacting with the first conductive segment and the second conductive segment, ensuring the stable operation of the test paper identification connector, and at the same time reducing the difficulty of assembling the test paper identification connector, and further improving the assembly efficiency of the test paper identification connector.

[0015] Optionally, an extension direction of the first conductive segment and an extension direction of the second conductive segment are arranged to be opposite to each other.

[0016] By adopting the above technical solution, since the extension direction of the first conductive segment and the extension direction of the second conductive segment are arranged to be opposite to each other, the extension direction of one of the first conductive segment and the second conductive segment is directed toward the plug interface to guide the test paper, so as to ensure the smoothness of the test paper being inserted into the accommodating cavity through the plug interface, thereby improving the user experience. At the same time, the space at both ends of the accommodating cavity in the first direction can be reasonably utilized to make the layout of the first conductive segment and the second conductive segment more reasonable, thereby increasing the compactness of the structure of the test paper identification connector.

[0017] Optionally, the multiple conductive segments are divided into a first conductive segment, a second conductive segment and a third conductive segment which are arranged in sequence along the first direction, the first conductive segment is arranged at the upper signal terminal, the second conductive segment is arranged at the upper signal terminal and the lower signal terminal, and the third conductive segment is arranged at the lower signal terminal.

[0018] By adopting the above technical solution, since the first conductive segment is arranged at the upper signal terminal, the second conductive segment is arranged at the upper signal terminal and the lower signal terminal, and the third conductive segment is arranged at the lower signal terminal, the signal terminals are distributed more evenly in the second direction, so as to simplify the structure of the signal terminals, thereby reducing the production difficulty of the signal terminals, and further reducing the production cost of the test paper identification connector.

[0019] Optionally, the plurality of conductive segments are divided into a first conductive segment, a second conductive segment and a third conductive segment, the first conductive segment and the third conductive segment are arranged opposite to each other in a third direction, and the second conductive segment and the first conductive segment are arranged offset in the third direction.

[0020] By adopting the above technical solution, since the first conductive segment and the third conductive segment are arranged relative to each other in the third direction, and the second conductive segment and the first conductive segment are arranged in a staggered manner in the third direction, the first conductive segment, the second conductive segment and the third conductive segment are mutually avoided to ensure the electrical conduction stability between the test paper identification connector and the test paper. At the same time, the conductive positions on the test paper that cooperate with the first conductive segment, the second conductive segment and the third conductive segment are mutually avoided to further reduce the difficulty of producing the test paper, thereby reducing the production cost of the test paper and improving the production efficiency of the test paper.

[0021] Optionally, the body includes a base and an upper cover disposed above the base, and the plurality of signal terminals are divided into upper signal terminals disposed on the upper cover and lower signal terminals disposed on the base.

[0022] By adopting the above technical solution, since the upper signal terminal is arranged on the upper cover, the lower signal terminal is arranged on the base, and the upper cover is arranged above the base, the difficulty of assembling the test paper identification connector can be reduced and the assembly efficiency of the test paper identification connector can be improved. At the same time, after the lower signal terminal is arranged on the base, it can also be used as a separate test paper identification connector to increase the flexibility of the test paper identification connector, thereby making the test paper identification connector suitable for different functional requirements.

[0023] Optionally, a limiting portion is provided at the bottom of the upper cover, and a matching portion that is plugged and matched with the limiting portion is provided at the top of the base.

[0024] By adopting the above technical solution, when assembling the upper cover, the limiting part and the matching part provided on the upper cover are first aligned, and then the upper cover and the base are matched together so that the limiting part and the matching part are plugged and matched, and then the plugging and matching of the limiting part and the matching part realizes the positioning of the upper cover, so as to reduce the risk of relative movement between the upper cover and the base, thereby ensuring the connection stability between the upper cover and the base. At the same time, the setting of the limiting part and the matching part can also serve as a reminder to the assembler to prevent the upper cover from being assembled in the wrong position, thereby ensuring the product quality of the test paper identification connector.

[0025] Optionally, the power connection section is located at the rear end of the body and has a power connection end located at the bottom of the body.

[0026] By adopting the above technical solution, since the power connection section is located at the rear end of the body and the plug interface is located at the front end of the body, the power connection section and the plug interface are arranged relative to each other, so that after the power connection end is connected to the circuit board, the body can be supported to reduce the risk of relative movement between the body and the circuit board when the test paper is inserted into the body, thereby increasing the connection stability between the test paper identification connector and the circuit board, and at the same time, the power connection section and the plug interface can form a avoidance to ensure the smoothness of inserting the test paper into the accommodating cavity. In addition, the power connection section has a power connection end located at the bottom of the body, so that the power connection end can contact the circuit board, thereby achieving the effect of facilitating the connection of the power connection section and the circuit board and increasing the electrical conduction stability between the power connection end and the circuit board.

[0027] Optionally, a relief notch is provided at the bottom of the body corresponding to the power connection terminal, so that the bottom of the power connection terminal is flush with the bottom end surface of the body.

[0028] By adopting the above technical solution, since the bottom of the power connection terminal is flush with the bottom end surface of the body, after the test paper identification connector is installed on the circuit board, the body can contact the circuit board to increase the contact area between the test paper identification connector and the circuit board, thereby increasing the connection stability between the test paper identification connector and the circuit board. At the same time, the risk of the test paper identification connector shaking when the user inserts the test paper into the accommodating cavity is reduced, thereby improving the user's feel when inserting the test paper into the accommodating cavity, thereby improving the user's experience.

[0029] Optionally, each of the signal terminals further includes a suspended segment located between the conductive segment and the electrical connection segment, and at least a portion of the suspended segment is located in the accommodating cavity.

[0030] By adopting the above technical solution, since the suspended segment is located between the conductive segment and the electrical connection segment and at least part of the suspended segment is located in the accommodating cavity, the elastic motion range of the conductive segment is increased to increase the elastic contact effect between the conductive segment and the conductive position on the test paper, thereby ensuring the electrical conduction effect between the test paper identification connector and the test paper. At the same time, the elastic motion range of the conductive segment is increased, which reduces the pressure between the conductive segment and the test paper, thereby reducing the risk of damage to the conductive position on the test paper when the test paper is inserted into the accommodating cavity, so as to improve the detection efficiency of the in vitro detector equipped with the test paper identification connector in the present application, and also reduce the waste of test paper, so as to reduce the user's use cost, thereby further improving the user's use experience.

[0031] Optionally, a positioning portion is provided at the bottom of the body, and the positioning portion is plugged into and matched with a circuit board to position the body.

[0032] By adopting the above technical solution, when assembling the body to the circuit board, first align the positioning part provided at the bottom of the body with the circuit board, and then mate the body with the circuit board so that the positioning part and the circuit board are plugged and matched, and then the body is positioned, so as to reduce the risk of dislocation caused by relative movement between the body and the circuit board before the body is fixed, thereby achieving the effect of facilitating the fixing of the body. At the same time, the positioning part can also serve as a reminder to the assemblers to prevent them from misaligning the installation of the body, thereby ensuring the yield rate of the in vitro detector equipped with the test paper identification connector in this application.

[0033] Optionally, the test paper identification connector also includes a booster member, which has a limiting guide portion, a pushing top portion extending into the accommodating cavity and acting on the test paper, and a connecting portion exposed at the bottom of the main body, and the main body is provided with a guide groove extending along the first direction, and the limiting guide portion is snap-fitted with the guide groove.

[0034] By adopting the above technical solution, when the test paper inserted in the accommodating cavity is withdrawn, the connecting part is slid toward the direction where the insertion interface is located, so that the connecting part drives the pushing top part to move, and then the pushing top part pushes the test paper, so that the test paper is withdrawn from the accommodating cavity under the action of the pushing top part. At the same time, when the connecting part and the body slide relative to each other, the connecting part drives the limit guide part to move, so that the limit guide part and the guide groove slide relative to each other, thereby increasing the stability of the push member when sliding, and because the limit guide part and the guide groove are engaged and matched, the connection stability of the push member and the body is increased.

[0035] Optionally, the test paper identification connector further comprises a fixing member disposed outside the main body, and fixing pins are disposed on two opposite sides of the bottom of the fixing member.

[0036] By adopting the above technical solution, after the main body is installed on the circuit board, the fixing pins are in contact with the circuit board, and then the fixing pins are fixedly connected to the circuit board using fasteners to fix the test paper identification connector. Since the fixing part is arranged on the outside of the main body, the fixing part can apply pressure to the main body toward the circuit board, and the fixing pins are located on two opposite sides of the fixing part, thereby increasing the reliability of the fixation of the main body, and then increasing the connection stability between the test paper identification connector and the circuit board.

[0037] The present application also discloses an in vitro detector, including a circuit board, a test paper and the test paper identification connector described above, wherein the electrical connection segment is electrically connected to the circuit board, the conductive positions on the test paper are located on the same side of the test paper and at least three rows are arranged corresponding to the conductive segments.

[0038] By adopting the above-mentioned technical solution, due to the use of the above-mentioned test paper identification connector, the production process of the test paper matching the in vitro detector in this application is simplified, the production efficiency of the test paper is improved and the production cost of the test paper is reduced. At the same time, the width of each conductive position on the test paper can be made larger, so as to increase the connection area between each conductive position and the conductive segment, thereby increasing the electrical conductivity stability between the test paper and the in vitro detector.

[0039] Due to the adoption of the above technical solution, the beneficial effects achieved by this application are as follows:

[0040] 1. The test paper identification connector in the present application includes a body and a signal terminal. The body has a receiving cavity and an insertion port connected to the receiving cavity. The insertion port is located at the front end of the body and is used for the test paper to be inserted into the receiving cavity. There are multiple signal terminals, each of which has a conductive segment located in the receiving cavity and used to contact the conductive position of the test paper and an electrical connection end outside the body in at least a part of the area. The multiple conductive segments are all located on the same side of the test paper and are divided into at least three rows in the first direction, so that the test paper matching the test paper identification connector in the present application only needs to print the conductive position on a single side, thereby simplifying the production process of the test paper, thereby improving the production efficiency of the test paper and reducing the production cost of the test paper. At the same time, the multiple conductive segments are divided into at least three rows in the first direction, thereby reducing the number of conductive segments in the same row, so that the width of each conductive position on the test paper can be made larger, so as to increase the connection area that each conductive position can be connected to the conductive segment, thereby increasing the electrical conduction stability between the test paper and the test paper identification connector.

[0041] 2. The multiple signal terminals in the present application are arranged in layers in the second direction, so that the multiple signal terminals are divided into upper signal terminals and lower signal terminals located below the upper signal terminals, so that the conductive segment of each signal terminal can be made larger to increase the connection area between the conductive segment and the test paper, thereby further ensuring the electrical conduction stability between the conductive segment and the test paper. At the same time, the space in the second direction can be reasonably utilized to make the layout of the multiple signal terminals more reasonable, reduce the difficulty of assembling the signal terminals, and thus improve the assembly efficiency of the test paper identification connector and reduce the assembly cost of the test paper identification connector.

[0042] 3. In the present application, the multiple conductive segments are divided into a first conductive segment provided at the upper signal terminal, a second conductive segment provided at the upper signal terminal, and a third conductive segment provided at the lower signal terminal. The first conductive segment, the second conductive segment, and the third conductive segment are sequentially arranged in the first direction so that the third conductive segment forms an avoidance with the first conductive segment and the second conductive segment, thereby reducing the risk of contact between the third conductive segment and the first conductive segment and the second conductive segment, thereby ensuring the stable operation of the test paper identification connector, and at the same time reducing the difficulty of assembling the test paper identification connector, thereby further improving the assembly efficiency of the test paper identification connector. BRIEF DESCRIPTION OF THE DRAWINGS

[0043] The drawings described herein are used to provide a further understanding of the present application and constitute a part of the present application. The illustrative embodiments of the present application and their descriptions are used to explain the present application and do not constitute an improper limitation on the present application. In the drawings:

[0044] Figure 1 This is a schematic diagram of the structure of the test paper identification connector according to one embodiment of the present application;

[0045] Figure 2 Schematic diagram of an exploded perspective of the test paper identification connector according to one embodiment of the present application, wherein the direction indicated by the solid arrow in the figure is the first direction, the direction indicated by the dashed arrow is the second direction, and the direction indicated by the dot-dash arrow is the third direction;

[0046] Figure 3 A cross-sectional view of the test paper identification connector according to one embodiment of the present application;

[0047] Figure 4 This is a schematic diagram of the structure of the test paper identification connector described in another embodiment of the present application;

[0048] Figure 5 This is a schematic structural diagram of another viewing angle of the test paper identification connector in another embodiment of the present application;

[0049] Figure 6This is a schematic diagram of an exploded perspective of a test paper identification connector according to another embodiment of the present application;

[0050] Figure 7 This is a schematic diagram of the structure of the upper cover in one embodiment of the present application;

[0051] Figure 8 This is a schematic structural diagram of the base described in one embodiment of the present application.

[0052] Reference numerals:

[0053] 1. body; 11. base; 111. plug interface; 112. accommodating cavity; 113. snap-fit ​​groove; 114. matching part; 115. avoidance gap; 116. positioning part; 117. guide groove; 118. snap-fit ​​block; 12. upper cover; 121. limit part;

[0054] 2. Upper signal terminal; 21. First conductive segment; 22. Second conductive segment; 23. Third conductive segment; 24. Connecting segment; 25. Suspended segment;

[0055] 3. Lower signal terminal;

[0056] 4. Test paper;

[0057] 5. Boosting member; 51. Position limiting guide portion; 52. Pushing top portion; 53. Connecting portion;

[0058] 6. Fixing piece; 61. Fixing pin; 62. Matching groove. DETAILED DESCRIPTION

[0059] In order to more clearly illustrate the overall concept of the present application, a detailed description is given below in an illustrative manner in conjunction with the accompanying drawings.

[0060] In the following description, many specific details are set forth to facilitate a full understanding of the present application. However, the present application may also be implemented in other ways different from those described herein. Therefore, the protection scope of the present application is not limited by the specific embodiments disclosed below. It should be noted that the embodiments of the present application and the features in each embodiment may be combined with each other without conflict.

[0061] In addition, in the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "top", "bottom", "inside", "outside", "axial", "radial", "circumferential", etc. are based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present application.

[0062] In this application, 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, an electrical connection, or a communication; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between 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.

[0063] In the present application, unless otherwise clearly specified and limited, a first feature "above" or "below" a second feature may be that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representation of the above terms does not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in an appropriate manner in any one or more embodiments or examples.

[0064] Reference Figures 1 to 8 A test paper identification connector includes a main body 1 and a plurality of signal terminals, wherein the main body 1 has a receiving cavity 112 and an insertion port 111 connected to the receiving cavity 112, the insertion port 111 is located at the front end of the main body 1 and is used for the test paper 4 to be inserted into the receiving cavity 112, each signal terminal has a conductive segment located in the receiving cavity 112 and used to contact the conductive position of the test paper 4 and a connecting segment 24 at least partially located outside the main body 1, and the plurality of conductive segments are located on the same side of the test paper 4 and are divided into at least three rows in the first direction.

[0065] When using an in vitro detector equipped with the test paper identification connector in the present application, the test paper 4 is first used for sampling, and then the sampled test paper 4 is inserted into the accommodating cavity 112 via the plug interface 111, and then the conductive position on the test paper 4 is brought into contact with the conductive segment, so that the test paper 4 and the test paper identification connector are electrically conductive. Since the multiple conductive segments are located on the same side of the test paper 4, it is only necessary to print the conductive position on a single side of the test paper 4, thereby simplifying the production process of the test paper 4, thereby improving the production efficiency of the test paper 4 and reducing the production cost of the test paper 4.

[0066] In addition, the multiple conductive segments are all located on the same side of the test paper 4, so that the forces applied by the multiple conductive segments to the test paper 4 are all directed to one side, thereby increasing the connection stability between the test paper 4 and the test paper identification connector. At the same time, the multiple conductive segments are divided into at least three rows in the first direction, so that the number of conductive segments in the same row is small, so that the width of each conductive position on the test paper 4 can be made larger, so as to increase the connection area between each conductive position and the conductive segment, thereby increasing the electrical conduction stability between the test paper 4 and the test paper identification connector.

[0067] It should be noted that the body 1 has a length direction, a height direction and a width direction. The first direction mentioned herein refers to a direction parallel to the length direction of the body 1 ( Figure 2 The second direction refers to the direction parallel to the height direction of the body 1 ( Figure 2 The third direction refers to the direction parallel to the width direction of the body 1 ( Figure 2 The front end of the body 1 refers to one end of the body 1 in the direction of its own length, and the rear end of the body 1 refers to the other end of the body 1 in the direction of its own length.

[0068] The present application does not specifically limit the number of rows of the plurality of conductive segments in the first direction. Preferably, the plurality of conductive segments are divided into three rows in the first direction to reasonably utilize the space of the accommodating cavity 112 in the first direction and increase the compactness of the structure of the test paper identification connector. In other embodiments, the plurality of conductive segments may also be divided into four rows, five rows, etc. in the first direction.

[0069] The present application does not specifically limit the arrangement of the plurality of signal terminals. Preferably, refer to Figure 2 , Figure 3 and Figure 6 , the plurality of signal terminals are arranged in layers in the second direction, so that the plurality of signal terminals are divided into an upper signal terminal 2 and a lower signal terminal 3 located below the upper signal terminal 2 .

[0070] Since the multiple signal terminals are arranged in layers in the second direction, the conductive segment of each signal terminal can be made larger to increase the connection area between the conductive segment and the test paper 4, thereby further ensuring the electrical conduction stability between the conductive segment and the test paper 4. At the same time, the space in the second direction can be reasonably utilized to make the layout of the multiple signal terminals more reasonable, reduce the difficulty of assembling the signal terminals, and thus improve the assembly efficiency of the test paper identification connector and reduce the assembly cost of the test paper identification connector.

[0071] The present application does not specifically limit the number of distribution layers of the plurality of signal terminals in the second direction. Preferably, refer to Figure 2 , Figure 3 and Figure 6 , the plurality of signal terminals are divided into two layers in the second direction, so as to ensure the compactness of the test paper identification connector structure and reduce the size of the test paper identification connector in the second direction, so as to miniaturize the test paper identification connector. In other embodiments, the plurality of signal terminals can also be divided into three layers, four layers, etc. in the second direction.

[0072] The present application does not specifically limit the distribution mode of the conductive segments, and any one of the following embodiments may be adopted:

[0073] Embodiment 1, in this embodiment, refer to Figure 6 and Figure 7 The multiple conductive segments are divided into a first conductive segment 21 provided at the upper signal terminal 2, a second conductive segment 22 provided at the upper signal terminal 2, and a third conductive segment 23 provided at the lower signal terminal 3. The first conductive segment 21, the second conductive segment 22, and the third conductive segment 23 are sequentially arranged in the first direction.

[0074] Since the first conductive segment 21, the second conductive segment 22 and the third conductive segment 23 are arranged in sequence in the first direction and the first conductive segment 21 and the second conductive segment 22 are arranged at the upper signal terminal 2, and the third conductive segment 23 is arranged at the lower signal terminal 3, the third conductive segment 23 forms an avoidance with the first conductive segment 21 and the second conductive segment 22, thereby reducing the risk of the third conductive segment 23 contacting the first conductive segment 21 and the second conductive segment 22, ensuring the stable operation of the test paper identification connector, and at the same time reducing the difficulty of assembling the test paper identification connector, further improving the assembly efficiency of the test paper identification connector.

[0075] In this embodiment, the extension direction of the first conductive segment 21 and the second conductive segment 22 is not specifically limited. Preferably, refer to Figure 6 and Figure 7 , the extension direction of the first conductive segment 21 and the extension direction of the second conductive segment 22 are arranged to be opposite to each other.

[0076] Since the extension direction of the first conductive segment 21 and the extension direction of the second conductive segment 22 are arranged to be opposite to each other, the extension direction of one of the first conductive segment 21 and the second conductive segment 22 is directed toward the plug interface 111 to guide the test paper 4, so as to ensure the smoothness of the test paper 4 being inserted into the accommodating cavity 112 through the plug interface 111, thereby improving the user experience. At the same time, the space at both ends of the accommodating cavity 112 in the first direction can be reasonably utilized to make the layout of the first conductive segment 21 and the second conductive segment 22 more reasonable, thereby increasing the compactness of the structure of the test paper identification connector.

[0077] In other implementation examples, the first conductive segment 21 and the second conductive segment 22 may also extend in the same direction.

[0078] It should be noted that the extension direction of the first conductive segment 21 refers to the direction from the connection position between the first conductive segment 21 and the conductive bit on the test paper 4 to the connection position between the first conductive segment 21 and the corresponding conductive segment 24, and the extension direction of the second conductive segment 22 refers to the direction from the connection position between the second conductive segment 22 and the conductive bit on the test paper 4 to the connection position between the second conductive segment 22 and the corresponding conductive segment 24.

[0079] Embodiment 2, in this embodiment, refer to Figure 2 The multiple conductive segments are divided into a first conductive segment 21, a second conductive segment 22 and a third conductive segment 23 which are sequentially arranged along the first direction. The first conductive segment 21 is arranged at the upper signal terminal 2, the second conductive segment 22 is arranged at the upper signal terminal 2 and the lower signal terminal 3, and the third conductive segment 23 is arranged at the lower signal terminal 3.

[0080] Since the first conductive segment 21 is arranged at the upper signal terminal 2, the second conductive segment 22 is arranged at the upper signal terminal 2 and the lower signal terminal 3, and the third conductive segment 23 is arranged at the lower signal terminal 3, the signal terminals are distributed more evenly in the second direction, so as to simplify the structure of the signal terminals, thereby reducing the difficulty of producing the signal terminals, and further reducing the production cost of the test paper identification connector.

[0081] In other implementations, the plurality of signal terminals may also be arranged on the same layer, that is, the layered arrangement of the plurality of signal terminals is cancelled.

[0082] In a preferred embodiment, referring to Figure 2 and Figure 6 The multiple conductive segments are divided into a first conductive segment 21, a second conductive segment 22 and a third conductive segment 23. The first conductive segment 21 and the third conductive segment 23 are arranged opposite to each other in the third direction, and the second conductive segment 22 and the first conductive segment 21 are staggered in the third direction.

[0083] Since the first conductive segment 21 and the third conductive segment 23 are arranged relative to each other in the third direction, and the second conductive segment 22 and the first conductive segment 21 are arranged offset in the third direction, the first conductive segment 21, the second conductive segment 22 and the third conductive segment 23 are mutually avoided to ensure the electrical conduction stability between the test paper identification connector and the test paper 4. At the same time, the conductive positions on the test paper 4 that cooperate with the first conductive segment 21, the second conductive segment 22 and the third conductive segment 23 are mutually avoided to further reduce the production difficulty of the test paper 4, thereby reducing the production cost of the test paper 4 and improving the production efficiency of the test paper 4.

[0084] The present application does not specifically limit the structure of the body 1, and it can adopt any one of the following implementations:

[0085] Embodiment 1. In this embodiment, referring to Figures 4 to 8 The body 1 includes a base 11 and an upper cover 12 disposed above the base 11 , and a plurality of signal terminals are divided into upper signal terminals 2 disposed on the upper cover 12 and lower signal terminals 3 disposed on the base 11 .

[0086] It can be understood that the main body 1 is a split structure to reduce the difficulty of producing the test paper identification connector, thereby reducing the production cost of the test paper identification connector.

[0087] Since the upper signal terminal 2 is arranged on the upper cover 12, the lower signal terminal 3 is arranged on the base 11, and the upper cover 12 is arranged above the base 11, the difficulty of assembling the test paper identification connector can be reduced and the assembly efficiency of the test paper identification connector can be improved. At the same time, after the lower signal terminal 3 is arranged on the base 11, it can also be used as a separate test paper identification connector to increase the flexibility of the test paper identification connector, thereby making the test paper identification connector suitable for different functional requirements.

[0088] The present application does not specifically limit the connection method between the upper signal terminal 2 and the upper cover 12. Preferably, refer to Figure 7 The upper signal terminal 2 is connected to the upper cover 12 by injection molding, that is, the upper signal terminal 2 is placed in the mold for molding the upper cover 12, and the upper cover 12 is molded by injection molding inside the mold, so that the upper cover 12 is formed and the upper signal terminal 2 is connected to the upper cover 12, so as to increase the connection stability between the upper signal terminal 2 and the upper cover 12, and at the same time reduce the parts required to assemble the test paper identification connector, thereby improving the assembly efficiency of the test paper identification connector. In other embodiments, the upper signal terminal 2 can also be connected to the upper cover 12 by means of a snap-on or fastener fixation.

[0089] The present application does not specifically limit the connection method between the lower signal terminal 3 and the base 11. Preferably, refer to Figure 6 and Figure 8 The base 11 is provided with a clamping groove 113 communicating with the accommodating cavity 112 corresponding to the lower signal terminal 3, and the lower signal terminal 3 is inserted into the clamping groove 113 to reduce the molding difficulty of the base 11 and improve the yield of the base 11. In other implementation examples, the lower signal terminal 3 can also be connected to the base 11 by injection molding.

[0090] In a preferred embodiment, referring to Figure 6 , Figure 7 and Figure 8 A limiting portion 121 is disposed at the bottom of the upper cover 12 , and a matching portion 114 which is plugged and matched with the limiting portion 121 is disposed at the top of the base 11 .

[0091] When assembling the upper cover 12, first align the limiting portion 121 provided on the upper cover 12 with the matching portion 114, and then mate the upper cover 12 with the base 11 so that the limiting portion 121 and the matching portion 114 are plugged and matched, and then the plugging and matching of the limiting portion 121 and the matching portion 114 realizes the positioning of the upper cover 12, so as to reduce the risk of relative movement between the upper cover 12 and the base 11, thereby ensuring the connection stability between the upper cover 12 and the base 11. At the same time, the setting of the limiting portion 121 and the matching portion 114 can also serve as a reminder to the assembler to prevent the upper cover 12 from being assembled in the wrong position, thereby ensuring the product quality of the test paper identification connector.

[0092] The present application does not specifically limit the structures of the limiting portion 121 and the matching portion 114. Preferably, refer to Figure 6 , Figure 7 and Figure 8 The limiting portion 121 is a columnar structure provided on the bottom end surface of the upper cover 12, and the matching portion 114 is a hole provided on the top end surface of the base 11, so as to limit the upper cover 12 in all directions within the top end surface of the base 11, thereby increasing the plug-in matching performance of the limiting portion 121 and the matching portion 114. In other implementation examples, the limiting portion 121 can also be a tooth-shaped structure provided on the bottom end surface of the upper cover 12, and the matching portion 114 is also a tooth-shaped structure provided on the top end surface of the base 11.

[0093] Implementation method 2. In this implementation method, refer to Figures 1 to 3 The main body 1 is an integrated structure to simplify the production process of the main body 1, reduce the production difficulty of the main body 1, and at the same time improve the production efficiency of the main body 1 and reduce the production cost of the main body 1.

[0094] In this embodiment, the connection method between the signal electron and the body 1 is not specifically limited. Preferably, refer to Figure 3 The signal terminal is connected to the body 1 by injection molding to increase the connection stability between the signal terminal and the body 1. In other embodiments, the signal terminal can also be connected to the body 1 by providing a groove structure on the body 1 corresponding to the signal terminal.

[0095] The present application does not specifically limit the position of the connecting section 24. Preferably, refer to Figure 3 and Figure 5 The power connection section 24 is located at the rear end of the body 1 and has a power connection end located at the bottom of the body 1.

[0096] Since the electrical connection section 24 is located at the rear end of the body 1, and the plug interface 111 is located at the front end of the body 1, the electrical connection section 24 and the plug interface 111 are arranged opposite to each other, so that after the electrical connection end is connected to the circuit board, the body 1 can be supported to reduce the risk of relative movement between the body 1 and the circuit board when the test paper 4 is inserted into the body 1, thereby increasing the connection stability between the test paper identification connector and the circuit board, and at the same time, the electrical connection section 24 and the plug interface 111 can be avoided to ensure smoothness when the test paper 4 is inserted into the accommodating cavity 112. In addition, the electrical connection section 24 has an electrical connection end located at the bottom of the body 1, so that the electrical connection end can contact the circuit board, thereby achieving the effect of facilitating the connection of the electrical connection section 24 and the circuit board and increasing the electrical conduction stability between the electrical connection end and the circuit board.

[0097] In a preferred embodiment, referring to Figure 3 and Figure 5 A relief notch 115 is provided at the bottom of the body 1 corresponding to the power connection terminal, so that the bottom of the power connection terminal is flush with the bottom end surface of the body 1.

[0098] Since the bottom of the power connection terminal is flush with the bottom end surface of the body 1, after the test paper identification connector is installed on the circuit board, the body 1 can contact the circuit board to increase the contact area between the test paper identification connector and the circuit board, thereby increasing the connection stability between the test paper identification connector and the circuit board. At the same time, the risk of the test paper identification connector shaking when the user inserts the test paper 4 into the accommodating cavity 112 is reduced, thereby improving the user's feel when inserting the test paper 4 into the accommodating cavity 112, thereby improving the user's experience.

[0099] In other embodiments, the electrical connection section 24 may also be disposed on the side or front end of the body 1 .

[0100] The present application does not specifically limit the structure of the signal terminal. Preferably, refer to Figure 2 and Figure 3 Each signal terminal further includes a suspended segment 25 located between the conductive segment and the electrical connection segment 24 , and at least a portion of the suspended segment 25 is located in the accommodating cavity 112 .

[0101] Since the suspended segment 25 is located between the conductive segment and the electrical connection segment 24 and at least part of the suspended segment 25 is located in the accommodating cavity 112, the elastic motion range of the conductive segment is increased to increase the elastic contact effect between the conductive segment and the conductive position on the test paper 4, thereby ensuring the electrical conduction effect between the test paper identification connector and the test paper 4. At the same time, the elastic motion range of the conductive segment is increased, which reduces the pressure between the conductive segment and the test paper 4, thereby reducing the risk of damage to the conductive position on the test paper 4 when the test paper 4 is inserted into the accommodating cavity 112, so as to improve the detection efficiency of the in vitro detector equipped with the test paper identification connector in the present application, and also reduce the waste of the test paper 4, so as to reduce the user's use cost, thereby further improving the user's use experience.

[0102] In other implementations, the suspended section 25 may be omitted.

[0103] In a preferred embodiment, referring to Figure 5 , Figure 6 and Figure 8 A positioning portion 116 is provided at the bottom of the body 1 , and the positioning portion 116 is plugged into and matched with the circuit board to position the body 1 .

[0104] When assembling the body 1 to the circuit board, first align the positioning portion 116 provided at the bottom of the body 1 with the circuit board, and then fit the body 1 and the circuit board together so that the positioning portion 116 and the circuit board are plugged and matched, and then the body 1 is positioned to reduce the risk of misalignment caused by the relative movement between the body 1 and the circuit board before the body 1 is fixed, thereby achieving the effect of facilitating the fixing of the body 1. At the same time, the positioning portion 116 can also serve as a reminder to the assemblers to prevent them from misaligning the installation of the body 1, thereby ensuring the yield rate of the in vitro detector equipped with the test paper identification connector in this application.

[0105] The present application does not specifically limit the structure of the positioning portion 116. Preferably, refer to Figure 5 , Figure 6 and Figure 8 , the positioning portion 116 is a columnar structure provided on the bottom end surface of the body 1, and a hole is provided on the circuit board for the positioning portion 116 to extend into, so as to increase the positioning effect of the positioning portion 116 on the body 1, so as to fix the connector later. In other embodiments, the positioning portion 116 can also be a hole provided on the bottom end surface of the body 1, and a columnar structure is provided on the circuit board to extend into the positioning portion 116.

[0106] In a preferred embodiment, referring to Figure 2 , Figure 6 and Figure 8The test paper identification connector also includes a booster 5, which has a limiting guide portion 51, a pushing portion 52 extending into the accommodating cavity 112 and acting on the test paper 4, and a connecting portion 53 exposed at the bottom of the main body 1. The main body 1 is provided with a guide groove 117 extending along the first direction, and the limiting guide portion 51 is snap-fitted with the guide groove 117.

[0107] When the test paper 4 inserted into the accommodating cavity 112 is withdrawn, the connecting portion 53 is slid toward the direction of the insertion port 111, so that the connecting portion 53 drives the pushing portion 52 to move, and then the pushing portion 52 pushes the test paper 4, so that the test paper 4 is withdrawn from the accommodating cavity 112 under the action of the pushing portion 52. At the same time, when the connecting portion 53 slides relatively with the body 1, the connecting portion 53 drives the limiting guide portion 51 to move, so that the limiting guide portion 51 slides relatively with the guide groove 117, thereby increasing the stability of the booster 5 when sliding, and because the limiting guide portion 51 is engaged with the guide groove 117, the connection stability of the booster 5 and the body 1 is increased.

[0108] The present application does not specifically limit the structure of the position limiting guide portion 51. Preferably, refer to Figure 8 The limiting guide portion 51 is an L-shaped structure, the end of the L-shaped structure is clamped at the notch of the guide groove 117, and the other part of the L-shaped structure is located in the guide groove 117 and slidably cooperates with the guide groove 117. In other embodiments, the limiting guide portion 51 can also be a T-shaped structure.

[0109] The present application does not specifically limit the structure of the connecting portion 53. Preferably, refer to Figure 2 and Figure 6 The connecting portion 53 is a plate-shaped structure connected to the limiting guide portion 51, so as to reduce the size of the test paper identification connector while ensuring the structural strength of the connecting portion 53. In other embodiments, the connecting portion 53 can also be a rod-shaped structure or other shapes.

[0110] The present application does not specifically limit the structure of the push top portion 52. Preferably, refer to Figure 6 The pushing portion 52 is a block-shaped structure disposed on the connecting portion 53 and extending into the accommodating cavity 112 to ensure the structural strength of the pushing portion 52 and thereby ensure the pushing effect on the test paper 4. In other embodiments, the pushing portion 52 may also be a strip-shaped structure disposed on the connecting portion 53 and extending into the accommodating cavity 112.

[0111] In a preferred embodiment, referring to Figure 1 , Figure 2 and Figure 6 The test paper identification connector also includes a fixing member 6 arranged outside the body 1, and fixing pins 61 are arranged on two opposite sides of the bottom of the fixing member 6.

[0112] After the main body 1 is installed on the circuit board, the fixing pin 61 contacts the circuit board, and then the fixing pin 61 is fixedly connected to the circuit board using fasteners to fix the test paper identification connector. Since the fixing member 6 is arranged on the outside of the main body 1, the fixing member 6 can apply pressure to the main body 1 toward the circuit board, and the fixing pin 61 is located on two opposite sides of the fixing member 6, thereby increasing the reliability of the fixation of the main body 1, and further increasing the connection stability between the test paper identification connector and the circuit board.

[0113] The present application does not specifically limit the connection method between the fixing pin 61 and the circuit board. Preferably, the fixing pin 61 is fixedly connected to the circuit board by screws or other fasteners to facilitate the fixing pin 61 to the circuit board. In other embodiments, the fixing pin 61 can also be connected to the circuit board by welding.

[0114] The present application does not specifically limit the connection method between the fixing member 6 and the body 1. Preferably, refer to Figure 2 and Figure 6 The side of the body 1 is provided with a clamping block 118, and the fixing member 6 is provided with a matching groove 62 corresponding to the clamping block 118. The clamping block 118 is clamped with the matching groove 62 to achieve a fixed connection between the fixing member 6 and the body 1. In other embodiments, the fixing member 6 can also be fixedly connected to the body 1 by fasteners such as screws.

[0115] The present application also discloses an in vitro detector, including a circuit board, a test paper 4 and the above-mentioned test paper identification connector, the electrical connection segment 24 is electrically connected to the circuit board, the conductive positions on the test paper 4 are located on the same side of the test paper 4 and corresponding conductive segments are arranged in at least three rows.

[0116] Due to the use of the above-mentioned test paper identification connector, the production process of the test paper 4 matching the in vitro detector in the present application is simplified, the production efficiency of the test paper 4 is improved and the production cost of the test paper 4 is reduced. At the same time, the width of each conductive position on the test paper 4 can be made larger, so as to increase the connection area between each conductive position and the conductive segment, thereby increasing the electrical conductivity stability between the test paper 4 and the in vitro detector.

[0117] Specifically, the three rows of conductive positions on the test paper 4 are respectively composed of a measuring electrode group, a power-on electrode pair and an automatic coding electrode group. The measuring electrode group is located in the first row in the direction of the test paper 4 being inserted into the test paper identification connector. The measuring electrode group includes an impedance test electrode, a current detection electrode, a full sample detection electrode and an impedance test electrode, wherein the impedance test electrode and the pair electrode share the same function. The power-on electrode pair is composed of a group of connected electrodes and is used for instrument power-on or power-off detection. The automatic coding electrode group enables the instrument circuit to identify different coding types by identifying the on and off states between the electrodes.

[0118] The present application does not specifically limit the connection method between the electrical connection section 24 and the circuit board. Preferably, the electrical connection section 24 is welded to the circuit board to achieve electrical conduction between the electrical connection section 24 and the circuit board. In other embodiments, the electrical connection section 24 can also be connected to the circuit board through a conductive wire.

[0119] The present application does not specifically limit the type of in vitro detector, which may be a blood glucose meter, a uric acid detector, a cholesterol detector, a multi-function detector, or other in vitro detectors that require the insertion of a test paper 4.

[0120] Anything not described in this application can be achieved by adopting or drawing on existing technologies.

[0121] The various embodiments in this specification are described in a progressive manner, and the same or similar parts between the various embodiments can be referenced to each other, and each embodiment focuses on the differences from other embodiments.

[0122] The above is only an embodiment of the present application and is not intended to limit the present application. For those skilled in the art, the present application may have various changes and variations. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present application should be included in the scope of the claims of the present application.

Claims

1. A test paper identification connector, characterized in that: include: A body (1) having a receiving cavity (112) and an insertion port (111) in communication with the receiving cavity (112); the insertion port (111) is located at the front end of the body (1) and is used for inserting a test paper (4) into the receiving cavity (112); A plurality of signal terminals are provided, each of the signal terminals having a conductive segment located in the accommodating cavity (112) and used to contact the conductive position of the test paper (4) and a connecting segment (24) at least part of which is located outside the body (1), the plurality of conductive segments being located on the same side of the test paper (4) and being divided into at least three rows in a first direction.

2. A test paper identification connector according to claim 1, characterized in that: The plurality of signal terminals are arranged in layers in the second direction, so that the plurality of signal terminals are divided into upper layer signal terminals (2) and lower layer signal terminals (3) located below the upper layer signal terminals (2).

3. A test paper identification connector according to claim 2, characterized in that: The plurality of conductive segments are divided into a first conductive segment (21) provided at the upper signal terminal (2), a second conductive segment (22) provided at the upper signal terminal (2), and a third conductive segment (23) provided at the lower signal terminal (3); the first conductive segment (21), the second conductive segment (22), and the third conductive segment (23) are arranged in sequence in the first direction.

4. A test paper identification connector according to claim 3, characterized in that: The extension direction of the first conductive segment (21) and the extension direction of the second conductive segment (22) are arranged to be opposite to each other.

5. A test paper identification connector according to claim 2, characterized in that: The plurality of conductive segments are divided into a first conductive segment (21), a second conductive segment (22) and a third conductive segment (23) which are sequentially arranged along a first direction; the first conductive segment (21) is arranged at the upper signal terminal (2); the second conductive segment (22) is arranged at the upper signal terminal (2) and the lower signal terminal (3); and the third conductive segment (23) is arranged at the lower signal terminal (3).

6. A test paper identification connector according to claim 1, characterized in that: The plurality of conductive segments are divided into a first conductive segment (21), a second conductive segment (22) and a third conductive segment (23); the first conductive segment (21) and the third conductive segment (23) are arranged relative to each other in a third direction, and the second conductive segment (22) and the first conductive segment (21) are arranged offset in the third direction.

7. A test paper identification connector according to claim 1, characterized in that: The body (1) comprises a base (11) and an upper cover (12) arranged above the base (11); the plurality of signal terminals are divided into upper signal terminals (2) arranged on the upper cover (12) and lower signal terminals (3) arranged on the base (11).

8. A test paper identification connector according to claim 7, characterized in that: The bottom of the upper cover (12) is provided with a limiting portion (121), and the top of the base (11) is provided with a matching portion (114) that is plugged and matched with the limiting portion (121).

9. The test paper identification connector according to claim 1, characterized in that: The power connection section (24) is located at the rear end of the body (1) and has a power connection end located at the bottom of the body (1).

10. A test paper identification connector according to claim 9, characterized in that: The bottom of the body (1) is provided with an avoidance notch (115) corresponding to the power connection end, so that the bottom of the power connection end is flush with the bottom end surface of the body (1).

11. A test paper identification connector according to claim 1, characterized in that: Each of the signal terminals further comprises a suspended section (25) located between the conductive section and the electrical connection section (24); at least a portion of the suspended section (25) is located in the accommodating cavity (112).

12. The test paper identification connector according to claim 1, characterized in that: A positioning portion (116) is provided at the bottom of the body (1), and the positioning portion (116) is plugged into and matched with a circuit board to position the body (1).

13. The test paper identification connector according to claim 1, characterized in that: The test paper identification connector also includes a booster (5), the booster (5) having a limiting guide portion (51), a pushing portion (52) extending into the accommodating cavity (112) and acting on the test paper (4), and a connecting portion (53) exposed at the bottom of the body (1), the body (1) being provided with a guide groove (117) extending along a first direction, the limiting guide portion (51) being snap-fitted with the guide groove (117).

14. The test paper identification connector according to claim 1, characterized in that: The test paper identification connector further comprises a fixing member (6) arranged outside the body (1), and fixing pins (61) are arranged on two opposite sides of the bottom of the fixing member (6).

15. An in vitro detector, comprising a circuit board and a test paper, characterized in that: It also includes a test paper identification connector as described in any one of claims 1 to 14 above, the electrical connection segment (24) is electrically connected to the circuit board, the conductive bits on the test paper (4) are located on the same side of the test paper (4) and at least three rows are arranged corresponding to the conductive segments.

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