Control module of blood glucose detector and blood glucose detector

Abstract

The embodiment of the utility model provides a control module of a blood glucose detector and the blood glucose detector. The control module of the blood glucose detector comprises a printed circuit board, a main control unit, a wireless communication control unit, a first antenna and a shielding assembly, wherein the main control unit is used for processing original data output by the sensing unit to obtain detection data; the wireless communication control unit is electrically connected with the main control unit and is used for receiving the detection data and outputting a first radio frequency signal; the first antenna is electrically connected with the wireless communication control unit and is used for receiving the first radio frequency signal for wireless transmission; the shielding assembly comprises a side plate, a top plate and a bottom plate which are arranged on the three side faces of the main control unit respectively, and a full-shadow shielding area for protecting the main control unit is formed to block at least part of irradiation rays. Compared with the prior art, the control module provided by the utility model protects the main control unit through the shielding assembly, and realizes miniaturization and low power consumption through reasonable layout.

Description

TECHNICAL FIELD

[0001] The utility model relates to the technical field of detector, especially a control module of blood glucose detector and blood glucose detector. BACKGROUND

[0002] Blood glucose detector is also called blood glucose detector, which is a kind of intelligent electronic medical instrument for testing blood glucose index. Blood glucose detector mainly includes blood glucose meter, test paper and needle, needle is used to prick the ring finger to collect blood, test paper is used to absorb sample blood, and is connected to blood glucose meter, and blood glucose index is obtained by testing test paper.

[0003] Since the blood glucose detector needs to be sterilized by irradiation, it can be safely used, and the irradiation will cause some sensitive components in the detector to fail or be damaged, so it needs to be protected to shield the irradiation. Moreover, the wearable continuous blood glucose detector in the blood glucose detector needs to be worn for a long time, in order to reduce the influence on the user's daily life, the size is required to be smaller and smaller, and can adapt to long time work, generally more than 14 days. Since the antenna needs a larger size to achieve better radiation effect, this is contrary to the miniaturization requirement of the continuous blood glucose detection system; at the same time, the efficiency of the antenna directly affects the power consumption of the system, and improving the radiation efficiency of the antenna can ensure longer working time of the system.

[0004] In addition, the blood glucose detector in the related art usually realizes power on / off in the form of keys, which leads to large power consumption of the whole blood glucose detector, and the keys need to be set, which leads to the increase of the size of the product. Moreover, the design and layout of the battery will also affect the size and use time of the product. This makes the product design more difficult, and smaller product size needs to be adopted to realize the miniaturization effect. UTILITY MODEL CONTENT

[0005] Therefore, it is necessary to provide a control module of blood glucose detector and blood glucose detector.

[0006] On the one hand, the utility model embodiment provides a control module of blood glucose detector, and the control module comprises:

[0007] Printed circuit board;

[0008] Main control unit, arranged on the printed circuit board, used for processing the original data output by the sensing unit to obtain detection data after starting work;

[0009] Wireless communication control unit, arranged on the printed circuit board and adjacent to the main control unit, the wireless communication control unit is electrically connected with the main control unit, used for receiving the detection data and outputting first radio frequency signal;

[0010] a first antenna disposed on the printed circuit board and electrically connected to the wireless communication control unit, for receiving the first radio frequency signal for wireless transmission;

[0011] a shielding assembly disposed on the printed circuit board, the shielding assembly comprising a side plate, a top plate and a bottom plate, the side plate, the top plate and the bottom plate being disposed on three sides of the main control unit respectively and forming a full shadow shielding area for protecting the main control unit from at least part of the irradiation rays.

[0012] In one embodiment, the printed circuit board has a first mounting site for disposing the sensing unit and a second mounting site for disposing the shielding assembly, the side plate is disposed through the second mounting site, the top plate and the bottom plate are oppositely disposed and connected to the side plate; the top plate is provided with a connecting portion connected to one end of the side plate away from the bottom plate, and the bottom plate is integrally formed with the side plate.

[0013] In one embodiment, the control module further comprises a second antenna for receiving a second radio frequency signal, the second antenna is disposed on the printed circuit board and electrically connected to the main control unit, the second radio frequency signal is an NFC radio frequency signal; the second antenna comprises a conductive circuit formed on the printed circuit board; the second antenna is formed on the bottom layer and the next bottom layer of the printed circuit board through a wire layout; the number of turns of the second antenna is greater than or equal to 4.

[0014] In one embodiment, the control module further comprises a battery module, the battery module is disposed on the printed circuit board; the battery module, the shielding assembly and the main control unit are located on a straight line; the battery module and the shielding assembly are used to jointly block the at least part of the irradiation rays; the wireless communication control unit is disposed in the full shadow shielding area; the control module further comprises a sensing unit connector, the sensing unit connector is disposed on the printed circuit board and used to be electrically connected between the sensing unit and the main control unit; the first mounting site comprises a head mounting area for partially disposing the sensing unit and a tail mounting area in communication with the head mounting area, and the sensing unit connector is disposed in the tail mounting area.

[0015] In one embodiment, the battery module comprises a battery and a battery holder, the battery holder is connected with the printed circuit board, and the battery is arranged between the battery holder and the printed circuit board; the battery holder comprises a main body part and at least two soldering pins, at least one blocking pin and at least one pressing spring arranged on the main body part, the main body part is arranged on the side of the battery away from the printed circuit board, the at least two soldering pins are arranged oppositely and connected with the printed circuit board, the blocking pin abuts against the battery to limit the battery between the battery holder and the printed circuit board, and the pressing spring abuts against the battery to press the battery to the side of the printed circuit board; the height of the battery holder is greater than 1.5 mm, and the thickness of the main body part is greater than 0.1 mm.

[0016] In one embodiment, the printed circuit board is circular, the battery module, the first mounting part, the sensor unit connector, the main control unit, the wireless communication control unit are sequentially arranged around the second mounting part; two ends of the second antenna are connected with the main control unit and form a ring arrangement area, the battery module, the first mounting part, the sensor unit connector, the main control unit, the wireless communication control unit and the second mounting part are located in the ring arrangement area; the first antenna is arranged around the periphery of the battery module, the second mounting part, the wireless communication control unit, the main control unit and the sensor unit connector; the first antenna is arranged around the periphery of the second antenna; the length of the second mounting part is greater than or equal to 3 mm, and the width is greater than or equal to 1 mm; the diameter of the head mounting area is greater than 2.5 mm; the length of the tail mounting area is greater than 2.5 mm, and the width is greater than 1 mm.

[0017] In one embodiment, the first antenna is a steel sheet antenna, which comprises an antenna main body arranged above the printed circuit board and at least one feeding part connected with the antenna main body and the printed circuit board, the at least one feeding part is electrically connected with the wireless communication control unit through a microstrip line; the at least one feeding part is provided with an antenna clearance area; the microstrip line comprises a line formed on the printed circuit board.

[0018] In one embodiment, the at least one feeding portion includes a first pin, a second pin, a third pin and a fourth pin, the first pin and the second pin are arranged at one end of the antenna body, the fourth pin is arranged at the middle of the antenna body, and the third pin is arranged between the first pin or the second pin and the fourth pin; the first pin and the second pin are ground feeding pins, the third pin is an antenna feeding point, and the fourth pin is suspended or a ground feeding pin; the first pin and the second pin are arranged close to the battery module, the third pin is arranged close to the wireless communication control unit and electrically connected to the wireless communication control unit through the microstrip line; the fourth pin is arranged close to the master control unit; the antenna clearance area includes a first clearance area and a second clearance area, the third pin is arranged in the first clearance area, and the fourth pin is arranged in the second clearance area; the first pin, the second pin, the third pin and the fourth pin have the same height; the height of the antenna body is greater than 1 mm, the thickness of the antenna body is greater than 0.1 mm, and the width of the antenna body is greater than 0.8 mm; the distance between the pads of the third pin and the fourth pin and the copper area on the printed circuit board is greater than 0.8 mm; the length of the third pin away from the end of the antenna body close to the first pin is greater than 15 mm.

[0019] In one embodiment, the control module further includes a matching network, the matching network is electrically connected to the wireless communication control unit and the steel sheet antenna through the microstrip line; the matching network is a T-shaped network, the matching network includes a first matching unit, a second matching unit and a third matching unit, one of the first matching unit and the second matching unit is connected to the wireless communication control unit, and the other is connected to the steel sheet antenna; the third matching unit is connected between a node between the first matching unit and the second matching unit and the ground; the first matching unit is an inductive or capacitive element, the second matching unit is an inductive or capacitive element, and the third matching unit is an inductive or capacitive element.

[0020] In one embodiment, the control module further includes a temperature sensor, the temperature sensor is electrically connected to the master control unit or the wireless communication control unit, for collecting temperature information and transmitting to the master control unit or the wireless communication control unit; the wireless communication control unit includes a Bluetooth communication chip; the Bluetooth communication chip is a BLE Bluetooth communication chip; the control module further includes a crystal oscillator element, the crystal oscillator element is electrically connected to the wireless communication control unit, for providing a basic clock for the wireless communication control unit; the master control unit is used for transmitting the detection data to the wireless communication control unit through an SPI / I2C / UART or GPIO interface.

[0021] In another aspect, the application also provides a blood glucose detector, which comprises the control module as described above.

[0022] Compared with the prior art, the control module provided by the application realizes processing, conversion and transmission of detection data to an external interactive device, realizes efficient data processing, wireless communication and data transmission, and facilitates analysis and management by using big data, by arranging a main control unit, a wireless communication control unit and a first antenna on a printed circuit board. BRIEF DESCRIPTION OF DRAWINGS

[0023] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiments will be briefly introduced as follows. Obviously, the drawings in the following description are only some embodiments of the present application, and for those skilled in the art, other drawings can also be obtained from these drawings without creative labor.

[0024] Figure 1 is a partial structure diagram of the blood glucose detector provided by the embodiment of the present application;

[0025] Figure 2 is Figure 1 is an exploded view of the blood glucose detector shown in the figure;

[0026] Figure 3 is a partial structure diagram of another blood glucose detector provided by the embodiment of the present application;

[0027] Figure 4 is a perspective view of the control module of the blood glucose detector provided by the embodiment of the present application;

[0028] Figure 5 is Figure 4 is an exploded view of the control module of the blood glucose detector shown in the figure;

[0029] Figure 6 is Figure 4 a structural schematic view of the control module of the blood glucose meter shown in FIG. 1 from another perspective;

[0030] Figure 7 is Figure 4 a structural schematic view of the shielding assembly of the blood glucose meter shown in FIG. 1;

[0031] Figure 8 is Figure 4 a structural schematic view of the second antenna of the blood glucose meter shown in FIG. 1;

[0032] Figure 9 is Figure 4 a structural schematic view of the battery holder of the blood glucose meter shown in FIG. 1;

[0033] Figure 10 is Figure 4 a structural schematic view of the first antenna of the blood glucose meter shown in FIG. 1;

[0034] Figure 11 is Figure 10 a structural schematic view of the first antenna shown in FIG. 1 in another embodiment;

[0035] Figure 12 is Figure 10 a structural schematic view of the first antenna shown in FIG. 1 in another embodiment;

[0036] Figure 13 is Figure 4 a circuit schematic view of the matching network of the blood glucose meter shown in FIG. 1;

[0037] Figure 14 is Figure 4 a circuit schematic view of the control module of the blood glucose meter shown in FIG. 1.

[0038] Explanation of reference numerals: 100, blood glucose meter; 1, control module; 2, housing; 3, sensing unit; 4, probe; 11, second antenna; 12, main control unit; 13, wireless communication control unit; 14, first antenna; 141, antenna main body; 142, feed portion; 142a, first pin; 142b, second pin; 142c, third pin; 142d, fourth pin; 142e, tab; 15, printed circuit board; 151, first mounting site; 1511, head mounting area; 1512, tail mounting area; 152, second mounting site; 16, battery module; 161, battery; 162, battery seat; 1621, main body portion; 1622, soldering pin; 1623, blocking pin; 1624, downward pressing spring piece; 17, shielding assembly; 171, side plate; 172, top plate; 1721, connecting portion; 173, bottom plate; 18, sensing unit connector; 19, crystal oscillator element; 155, matching network; 1551, first matching unit; 1552, second matching unit; 1553, third matching unit; 156, temperature sensor; 21, upper housing assembly; 22, lower housing assembly; 1a, first clearance area; 1b, second clearance area. DETAILED DESCRIPTION

[0039] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative labor fall within the scope of protection of the present application.

[0040] In the present application, the terms "upper", "lower", "left", "right", "front", "back", "top", "bottom", "inner", "outer", "middle", "vertical", "horizontal", "transverse", "longitudinal" and the like indicate the orientation or positional relationship shown in the drawings. These terms are mainly used to better describe the present application and its embodiments, and are not used to limit the indicated devices, elements or components to have a specific orientation, or to be constructed and operated in a specific orientation.

[0041] In addition, in addition to indicating the orientation or positional relationship, the above-mentioned part of the terms can also be used to indicate other meanings, for example, the term "upper" can also be used to indicate a certain dependent relationship or connection relationship in some cases. For those skilled in the art, the specific meaning of these terms in the present application can be understood according to the specific situation.

[0042] Furthermore, the terms "installation," "setup," "equipped with," "connection," and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral structure; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium, or an internal connection between two devices, components, or parts. Those skilled in the art can understand the specific meaning of these terms in this utility model based on the specific circumstances.

[0043] Furthermore, the terms "first," "second," etc., are primarily used to distinguish different devices, elements, or components (which may be the same or different in specific type and construction), and are not intended to indicate or imply the relative importance or quantity of the indicated devices, elements, or components. Unless otherwise stated, "a plurality of" means two or more.

[0044] Please see Figure 1 , Figure 1 This is a partial structural schematic diagram of the blood glucose meter provided in this embodiment of the utility model. It can be understood that the blood glucose meter 100 also includes other components (not shown in the figure), such as the probe 4, support, elastic element, pressing element, and sealing element. Of course, the blood glucose meter 100 can be specifically designed according to specific application scenarios, and may not include the aforementioned other components not shown in the figure. Since these other components not shown in the figures are not the focus of this application's innovative technology, they will not be described in detail in this embodiment, nor will they be shown in the figures.

[0045] The blood glucose meter 100 is used to measure the blood glucose level of a user or patient.

[0046] Specifically, please refer to Figure 2 , Figure 2 It shows Figure 1 The diagram shows an exploded perspective view of the blood glucose meter. In this embodiment, the blood glucose meter 100 includes a housing 2 and a control module 1, a sensing unit 3, and a probe 4 disposed within the housing 2. The probe 4 is used to penetrate the sampling site to obtain a sample, and the sensing unit 3 obtains the raw data within the sample or transmits the sample to the control module 1 for processing, conversion, and transmission. In this embodiment, the housing 2 includes an upper housing assembly 21 and a lower housing assembly 22, which together form a cavity. The control module 1, the sensing unit 3, and the probe 4 are all disposed within the cavity. Since the housing 2 is not an innovative design feature of this embodiment, it will not be described in detail here.

[0047] The blood glucose meter 100 can also be a continuous blood glucose meter 100, which is worn on a part of the user's or patient's body for continuous monitoring, data analysis and management.

[0048] Specifically, please refer toFigure 3 , Figure 3 This is a partial structural schematic diagram of another blood glucose meter provided in this embodiment of the present invention. In this embodiment, the blood glucose meter 100 may not include the probe 4. The blood glucose meter 100 can be directly worn on a part of the user's or patient's body to continuously monitor blood glucose levels and transmit the monitoring data to the control module 1 via the sensing unit 3 for processing, conversion, and transmission. In this embodiment, the blood glucose meter 100 includes a housing 2 and a control module 1 disposed within the housing 2. The control module 1 processes, converts, and transmits the collected raw data. The blood glucose meter 100 may also include a sensing unit 3, which is used to acquire raw data such as blood glucose levels and transmit it to the control module 1 for processing, conversion, and transmission.

[0049] In the aforementioned embodiments, the control module 1 can be connected to external devices such as mobile phones, tablets, and computers, and process, convert, and transmit blood glucose test data to the external devices, thereby facilitating subsequent big data analysis and organization, and making it easier for users to manage their blood glucose levels.

[0050] Combination Figure 1 and Figure 3 It can be seen that the specific structure and appearance of the housing 2 of the blood glucose meter 100 are designed according to product design requirements. Figure 1 and Figure 3 The shape of the shell 2 shown is only a schematic diagram for ease of understanding.

[0051] Because the blood glucose meter 100 has different application scenarios and its internal structure also varies, and other components are not the focus of the innovative technology of this application embodiment, the following description of the control module 1, the key innovative part of this application embodiment, will be based on the accompanying drawings.

[0052] Please see Figure 4 , Figure 4is a perspective view of a control module of a blood glucose meter provided by an embodiment of the present application. The control module 1 is part of the blood glucose meter 100, and includes a circuit board, specifically a printed circuit board 15. Other components of the control module 1 are disposed on the printed circuit board 15. The printed circuit board 15 has a first mounting site 151 for mounting the aforementioned sensor unit 3, and the first mounting site 151 is a hole that penetrates the printed circuit board 15. Specifically, the first mounting site 151 includes a head mounting area 1511 for partially mounting the sensor unit 3, and a tail mounting area 1512 that is in communication with the head mounting area 1511. The head mounting area 1511 is a circular hole, and the tail mounting area 1512 is a generally long and narrow hole. The diameter of the head mounting area 1511 is greater than 2.5 mm, and the length of the tail mounting area 1512 is greater than 2.5 mm, and the width of the tail mounting area 1512 is greater than 1 mm. In this way, the size of the first mounting site 151 can be reduced, and the sensor unit 3 can be mounted. Please refer to Figures 4-6 The control module 1 includes a sensor unit connector 18. The sensor unit connector 18 is disposed on the printed circuit board 15, and specifically, the sensor unit connector 18 is disposed on the tail mounting area 1512. The sensor unit connector 18 is electrically connected between the sensor unit 3 and the main control unit 12.

[0053] Specifically, please refer to Figure 4 、 Figure 5 and Figure 6 , Figure 5 is a perspective view of a control module of a blood glucose meter shown in Figure 4 ; Figure 6 is a structural schematic diagram of the control module of the blood glucose meter shown in Figure 4 . The control module 1 includes a first antenna 14, a main control unit 12, a wireless communication control unit 13, a second antenna 11, and a shielding assembly 17. The second antenna 11, the main control unit 12, the wireless communication control unit 13, the first antenna 14, and the shielding assembly 17 are all disposed on the printed circuit board 15.

[0054] The wireless communication control unit 13 is electrically connected to the main control unit 12, and the wireless communication control unit 13 is configured to receive detection data and output a first radio frequency signal. The first antenna 14 is electrically connected to the wireless communication control unit 13, and the first antenna 14 is configured to receive the first radio frequency signal for wireless transmission. The second antenna 11 is configured to receive a second radio frequency signal, which is an NFC radio frequency signal. The main control unit 12 is electrically connected to the second antenna 11, and the main control unit 12 is configured to receive the NFC radio frequency signal to start working, and to process raw data output by the sensor unit 3 to obtain detection data after starting to work.

[0055] Please refer to Figure 7In the embodiment, the shielding assembly 17 includes a side plate 171 connected to the printed circuit board 15, a top plate 172 connected to the side plate 171, and a bottom plate 173 connected to one end of the side plate 171 away from the top plate 172. The side plate 171 is arranged adjacent to the main control unit 12. The top plate 172 is located on the side of the main control unit 12 away from the printed circuit board 15. The bottom plate 173 and the top plate 172 are arranged on the same side of the two ends of the side plate 171, forming a concave structure. The bottom plate 173 is located on the side of the printed circuit board 15 away from the top plate 172, so that the top plate 172 and the bottom plate 173 are arranged on the two sides of the printed circuit board 15. The shielding assembly 17 forms a full-shielded shielding area to protect the main control unit 12 from at least part of the irradiation rays. In the embodiment, the top plate 172 is located directly above the main control unit 12, the bottom plate 173 is located directly below the main control unit 12, and the side plate 171 is located on one side of the main control unit 12, so as to surround the main control unit 12. When the irradiation rays are irradiated for sterilization, the side plate 171, the top plate 172, and the bottom plate 173 are shielded in the path of the irradiation rays, forming a full-shielded shielding area to protect the main control unit 12 inside, avoiding irradiation of the irradiation rays. The material of the shielding assembly 17 includes but is not limited to lead, stainless steel, tungsten, or other high-density polymers.

[0056] Specifically, in the embodiment, the top plate 172 is provided with a connecting portion 1721 connected to one end of the side plate 171 away from the bottom plate 173, and the bottom plate 173 is integrally formed with the side plate 171. The connecting portion 1721 and the side plate 171 are connected by welding, pressure bonding, or adhesive bonding. In this way, the side plate 171 can be first inserted through the printed circuit board 15, and then connected to the top plate 172, facilitating the production and assembly of the product.

[0057] In a modified embodiment, the top plate and the side plate can be integrally formed, and after being installed on the printed circuit board, the top plate is connected to the bottom plate.

[0058] In other embodiments, the top plate and the bottom plate can be respectively connected to the two ends of the side plate. After the side plate is installed on the printed circuit board, the bottom plate and the top plate are respectively connected to the two ends of the side plate.

[0059] In another embodiment, the top plate, the bottom plate, and the side plate are respectively arranged on the printed circuit board. Alternatively, one of the top plate and the bottom plate is connected to the side plate, and the other is separately arranged on the printed circuit board. As long as the three are arranged on three sides of the main control unit and can be shielded in the irradiation path of the irradiation rays to form a full-shielded shielding area to protect the main control unit, the arrangement is acceptable.

[0060] Specifically, please refer to Figures 4-6The printed circuit board 15 also has a second mounting position 152; the shielding assembly 17 is arranged at the second mounting position 152; specifically, the side plate 171 is arranged through the second mounting position 152. The second mounting position 152 is a hole penetrating the printed circuit board 15. Specifically, the second mounting position 152 is a substantially rectangular hole, the length of which is greater than or equal to 3 mm, and the width of which is greater than or equal to 1 mm. A substantially trapezoidal extension opening is arranged at each corner of the rectangular hole of the second mounting position 152, and the distance of the substantially trapezoidal extension opening along the length and width of the second mounting position 152 is greater than 0.15 mm.

[0061] Please refer to Figure 7 In the embodiment, the length of the top plate 172 is greater than 3.2 mm, the width is greater than 2.5 mm, and the thickness is greater than 0.3 mm; the width of the side plate 171 is greater than 0.5 mm, and the height is greater than 2 mm; the length of the bottom plate 173 is greater than 3 mm, the width is greater than 2 mm, and the thickness is greater than 0.15 mm. In order to ensure that the full-shield shielding area can completely shield and protect the master control unit 12, the size of the orthographic projection area of the shielding assembly 17 on the printed circuit board 15 is as follows: the length is greater than 3 mm, and the width is greater than 3 mm. In this way, the shielding assembly 17 can meet the shielding irradiation line requirement while being miniaturized.

[0062] Compared with the prior art, the control module 1 provided in the application realizes processing, conversion, and transmission of detection data to an external interactive device by arranging the master control unit 12, the wireless communication control unit 13, and the first antenna 14 on the printed circuit board 15, realizes efficient data processing, wireless communication, and data transmission, and facilitates analysis and management by using big data; and the shielding assembly 17 is arranged around three sides of the master control unit 12 to form a full-shield shielding area to protect the master control unit 12 to block the irradiation line, which can ensure omnidirectional shielding and blocking of the irradiation direction, thereby realizing omnidirectional protection of sensitive components during irradiation sterilization. The bottom plate 173 is integrally formed with the side plate 171, and then connected with the top plate 172, which facilitates the side plate 171 to penetrate the printed circuit board 15, thereby facilitating installation of the shielding assembly 17. The installation sequence is to first install the side plate 171 and the bottom plate 173, and then install the top plate 172, which facilitates production and assembly and improves production efficiency. In addition, the second antenna 11 is used to receive an NFC radio frequency signal, the master control unit 12 is electrically connected with the second antenna 11, and the master control unit 12 only starts to work after receiving the NFC radio frequency signal. When the external interactive device emits an NFC radio frequency signal to the second antenna 11, the master control unit 12 receives the NFC radio frequency signal and starts to work. Conversely, when the external interactive device does not emit an NFC radio frequency signal to the second antenna 11, the master control unit 12 is in a standby state, which realizes extremely low overall power consumption.

[0063] Please refer toFigures 4-6 And Figure 8 The second antenna 11 includes a conductive circuit formed on the printed circuit board 15; the second antenna 11 is formed by winding layout on the bottom layer and the second bottom layer of the printed circuit board 15; the number of winding turns of the second antenna 11 is greater than or equal to 4. In this way, the second antenna 11 is arranged extensively to facilitate the reception of the second radio frequency signal. For example, the printed circuit board 15 can include a first base layer, a second base layer, a third base layer and a fourth base layer arranged in sequence; the first base layer is not provided with the second antenna 11, the second base layer is not provided with the second antenna 11, the third base layer can be provided with two turns of the second antenna 11, and the fourth base layer is provided with two turns of the second antenna 11; the printed circuit board 15 further includes a via hole, the via hole penetrates the first base layer, the second base layer, the third base layer and the fourth base layer; the second antenna 11 in different base layers is connected through the via hole.

[0064] Please refer to Figures 4-6 In order to realize power supply, the control module 1 further includes a battery module 16; the battery module 16 is arranged on the printed circuit board 15. Specifically, the battery module includes a battery 161 and a battery seat 162, the battery seat 162 is connected with the printed circuit board 15, and the battery 161 is arranged between the battery seat 162 and the printed circuit board 15. A cavity is formed between the battery seat 162 and the printed circuit board 15, which can accommodate the battery 161; one side of the battery seat 162 has an opening, the opening width is greater than 7.8mm, which is used for the battery 161 to be installed into the cavity. The material of the battery seat 162 is stainless steel material.

[0065] Please refer to Figure 9In order to ensure that the battery 161 is firmly installed between the battery seat 162 and the printed circuit board 15, the battery seat 162 comprises a main body part 1621 and at least two soldering pins 1622, at least one blocking pin 1623 and at least one pressing spring 1624 arranged on the main body part 1621, the main body part 1621 is arranged on the side of the battery 161 away from the printed circuit board 15, the at least two soldering pins 1622 are arranged oppositely and connected with the printed circuit board 15, the blocking pin 1623 abuts against the battery 161 to limit the battery 161 between the battery seat 162 and the printed circuit board 15, and the pressing spring 1624 abuts against the battery 161 to press the battery 161 to the side of the printed circuit board 15. The height of the battery seat 162 is greater than 1.5 mm, and the thickness of the main body part 1621 is greater than 0.1 mm. Specifically, in the embodiment of the application, the number of soldering pins 1622 is three, two soldering pins 1622 are arranged on both sides of the opening, and the other soldering pin 1622 is arranged between the blocking pin 1623 and one of the soldering pins 1622; the number of blocking pins 1623 is two, one of the blocking pins 1623 is arranged opposite to the opening; the number of pressing springs 1624 is two, the pressing spring 1624 has a certain rigidity and elasticity, when the battery 161 enters the cavity, the pressing spring 1624 is pressed to move away from the printed circuit board 15, so that the pressing spring 1624 has elasticity towards the printed circuit board 15, thereby pressing the battery 161 to fix the battery 161 in the cavity, and the two blocking pins 1623 abut against the outer side wall of the battery 161 to prevent the battery 161 from moving out from the opposite side of the opening. The width of the opening of the battery seat 162 is greater than 7.8 mm, so as to facilitate the installation of the battery 161. The battery seat 162 is designed in this way and the size is limited, which can ensure that the battery seat 162 can stably fix the battery 161 on the printed circuit board 15, and can maintain the strength of the battery seat 162, while realizing miniaturization and further reducing the size of the product.

[0066] In order to further avoid damage to the master control unit 12 caused by irradiation of irradiation rays, the battery module 16, the shielding assembly 17 and the master control unit 12 are located on a straight line, and the battery module 16 and the shielding assembly 17 are used to jointly block at least part of the irradiation rays, so as to ensure that the irradiation rays in this direction are blocked. Of course, in other embodiments, only the battery module 16 can be used to shield and block the irradiation rays.

[0067] In this embodiment, the wireless communication control unit 13 also belongs to the sensitive unit and is easy to be damaged by irradiation rays, therefore, the wireless communication control unit 13 is arranged in the full-shield shielding area, specifically, the wireless communication control unit 13 is arranged in parallel with the master control unit 12 along the length direction of the second mounting position 152. In this way, the full-shield shielding area can better avoid the damage of the wireless communication control unit 13 caused by irradiation rays, thereby ensuring the accuracy of control and service life of the control module 1.

[0068] Specifically, in order to further reduce the volume of the control module 1, thereby realizing the miniaturization of the blood glucose meter 100, in this embodiment, the printed circuit board 15 is circular, and the battery module 16, the first mounting position 151, the sensor unit connector, the master control unit 12, and the wireless communication control unit 13 are sequentially arranged around the second mounting position 152. In this way, the layout design of the control module 1 can be more compact and smaller in size.

[0069] In order to further reasonably utilize the space of the printed circuit board 15 to reduce the volume, the two ends of the second antenna 11 are respectively connected to the master control unit 12 and form a ring arrangement area; specifically, the battery module 16, the first mounting position 151, the sensor unit connector 18, the master control unit 12, the wireless communication control unit 13, and the second mounting position 152 are all located in the ring arrangement area. In this way, the design facilitates the processing, conversion, and transmission of detection data between the second antenna 11 and the sensor unit 3, the master control unit 12, and the wireless communication control unit 13, realizes efficient data processing, wireless communication, and data transmission, and facilitates analysis and management using big data; and the second antenna 11, the sensor unit 3, the master control unit 12, the wireless communication control unit 13, and the shielding assembly 17 are arranged more compactly in the spatial structure, which can further reduce the overall size of the blood glucose meter 100, thereby miniaturizing the product.

[0070] The first antenna 14 is a small-size patch steel antenna, and the first antenna 14 is arranged around the periphery of the battery module 16, the second mounting position 152, the wireless communication control unit 13, the master control unit 12, and the sensor unit connector 18, which can further reduce the product volume and reasonably utilize the space of the printed circuit board 15, making the layout more compact and reasonable. In this way, the design facilitates the processing, conversion, and transmission of detection data between the first antenna 14 and the sensor unit 3, the master control unit 12, and the wireless communication control unit 13, realizes efficient data processing, wireless communication, and data transmission, and facilitates analysis and management using big data by the terminal device; and the first antenna 14, the sensor unit 3, the master control unit 12, the wireless communication control unit 13, and the shielding assembly 17 are arranged more compactly in the spatial structure, which can further reduce the overall size of the blood glucose meter 100, thereby miniaturizing the product.

[0071] The first antenna 14 is arranged around the periphery of the second antenna 11. In this way, the first antenna 14 and the second antenna 11 are arranged more compactly in terms of spatial structure, which can further reduce the overall size of the blood glucose meter 100, thereby miniaturizing the product.

[0072] Referring to Figures 4-6 and Figure 10 , the first antenna 14 is a steel sheet antenna; the steel sheet antenna includes an antenna body 141 arranged above the printed circuit board 15, and at least one feeding portion 142 connecting the antenna body 141 and the printed circuit board 15; the at least one feeding portion 142 is electrically connected to the wireless communication control unit 13 through a microstrip line. In this way, the first radio frequency signal output by the wireless communication control unit 13 is transmitted to the feeding portion 142 through the microstrip line, and then transmitted to the antenna body 141 by the feeding portion 142, for wireless transmission.

[0073] The microstrip line includes a line formed on the printed circuit board 15. The microstrip line is a transmission line form commonly used in microwave and millimeter wave frequency bands, characterized in that the electromagnetic field is mainly limited to a relatively thin dielectric layer, and the transmission and manipulation of electromagnetic waves are realized through three basic parts: a patch, a ground plate, and a dielectric substrate. In this embodiment, the characteristic impedance of the microstrip line is 50Ω. The electrical connection is realized through the microstrip line, which simplifies the layout and wiring between units, improves the stability of the circuit, reduces electromagnetic interference, optimizes frequency matching, and enhances the performance of the wireless communication device.

[0074] The at least one feeding portion 142 is provided with an antenna clearance. The antenna clearance refers to the space between the antenna and its surrounding objects, which is crucial to the performance of the antenna. The antenna clearance ensures that the antenna has enough space to avoid shielding or interference, and guarantees the omnidirectional communication effect of the first antenna 14. By providing the antenna clearance in the feeding portion 142, it can be ensured that the signal of the first antenna 14 is less hindered, thereby improving the transmission quality and coverage range of the signal of the first antenna 14. It is worth mentioning that the second antenna 11 and the first antenna 14 can be prearranged with sufficient antenna clearance on the printed circuit board 15 to avoid each other, so that the transmission efficiency of the second antenna 11 and the first antenna 14 can meet the requirements.

[0075] Specifically, referring to Figures 4-6 and Figure 10The at least one feeding portion 142 includes a first pin 142a, a second pin 142b, a third pin 142c and a fourth pin 142d. The first pin 142a and the second pin 142b are arranged at one end of the antenna body 141, the fourth pin 142d is arranged at the middle of the antenna body 141, and the third pin 142c is arranged between the first pin 142a or the second pin 142b and the fourth pin 142d. With the end of the antenna body 141 where the first pin 142a and the second pin 142b are located as the head and the other end as the tail, the fourth pin 142d is arranged at the middle of the head and the tail of the antenna body 141. The first pin 142a and the second pin 142b are both ground feeding pins, the third pin 142c is an antenna feeding point, and the fourth pin 142d is either suspended or a ground feeding pin. In this embodiment, the tail of the antenna body 141 is suspended, thereby not interfering with the second antenna 11.

[0076] The first pin 142a and the second pin 142b are arranged close to the battery module 16. In this way, the electrical connection between the first pin 142a, the second pin 142b and the battery module 16 is facilitated, and the first pin 142a, the second pin 142b and the battery module 16 are arranged more compactly in terms of spatial structure, which can further reduce the overall size of the blood glucose meter 100, thereby miniaturizing the product.

[0077] The third pin 142c is arranged close to the wireless communication control unit 13 and is electrically connected to the wireless communication control unit 13 through a microstrip line. In this way, the electrical connection between the third pin 142c and the wireless communication control unit 13 is facilitated, and the third pin 142c and the wireless communication control unit 13 are arranged more compactly in terms of spatial structure, which can further reduce the overall size of the blood glucose meter 100, thereby miniaturizing the product.

[0078] The fourth pin 142d is arranged close to the main control unit 12. In this way, the electrical connection between the fourth pin 142d and the main control unit 12 is facilitated, and the fourth pin 142d and the main control unit 12 are arranged more compactly in terms of spatial structure, which can further reduce the overall size of the blood glucose meter 100, thereby miniaturizing the product.

[0079] The antenna clearance area includes a first clearance area 1a, and the third pin 142c is arranged in the first clearance area 1a. In this way, the first radio frequency signal output by the wireless communication control unit 13 can be less obstructed, thereby improving the transmission quality and coverage range of the first radio frequency signal.

[0080] The antenna clearance area also includes a second clearance area 1b; the fourth pin 142d is arranged in the second clearance area 1b. In this way, the NFC radio frequency signal received by the master control unit 12 can be less hindered, thereby improving the transmission quality and coverage of the NFC radio frequency signal.

[0081] More specifically, the first pin 142a, the second pin 142b, the third pin 142c and the fourth pin 142d have the same height; the height of the antenna body 141 is greater than 1 mm, the thickness of the antenna body 141 is greater than 0.1 mm, and the width of the antenna body 141 is greater than 0.8 mm. The distance between the pads of the third pin 142c and the fourth pin 142d and the copper area on the printed circuit board 15 is greater than 0.8 mm; the length of the third pin 142c and the tail of the antenna body 141 is greater than 15 mm. By reasonably designing the height of the first pin 142a, the second pin 142b, the third pin 142c and the fourth pin 142d and the size and height of the antenna body 141, the electrical connection between the corresponding components is facilitated, and the radio frequency signal radiated by the steel sheet antenna is connected to the terminal device such as a mobile phone, and the blood glucose data, temperature data and other real-time data are uploaded to the terminal device such as a mobile phone, ensuring the stability of signal transmission.

[0082] The shape and structure of the steel sheet antenna can be various designs. In the embodiment, the structure of the steel sheet antenna is as shown in Figure 10 The antenna body 141 also has a near-circular tab 142e, which is connected to the fourth pin 142d and arranged at the middle position of the antenna body 141. The arrangement of the tab 142e can make the signal transmitted to the terminal device such as a mobile phone more stable.

[0083] In other embodiments, the structure of the steel sheet antenna can be as shown in Figure 11 The fourth pin 142d can be arranged near the tail end of the antenna body 141, and the tab 142e and the fourth pin 142d are arranged at different positions of the antenna body 141.

[0084] In another embodiment, the structure and shape of the steel sheet antenna can also be as shown in Figure 12 The fourth pin 142d can be arranged near the tail of the antenna body 141, and the antenna body 141 is not provided with the tab 142e.

[0085] Please refer to Figure 5 and Figure 13In the embodiment, the control module 1 further comprises a matching network 155 electrically connected to the wireless communication control unit 13 and the steel sheet antenna through the microstrip line; the matching network 155 is a T-shaped network, and the matching network 155 comprises a first matching unit 1551, a second matching unit 1552 and a third matching unit 1553; one of the first matching unit 1551 and the second matching unit 1552 is connected to the wireless communication control unit 13, and the other is connected to the steel sheet antenna; the third matching unit 1553 is connected between the node between the first matching unit 1551 and the second matching unit 1552 and the ground; the first matching unit 1551 is an inductive or capacitive element, the second matching unit 1552 is an inductive or capacitive element, and the third matching unit 1553 is an inductive or capacitive element. Specifically, the first matching unit 1551 is a 33pF capacitor, the second matching unit 1552 is a 0Ω resistor, and the third matching unit 1553 is not welded. By adjusting the device values of the first matching unit 1551, the second matching unit 1552 and the third matching unit 1553, the matching network 155 reaches a matching state, and the radio frequency signal is transmitted to the steel sheet antenna, so that the power consumption can be reduced and the stability of radio frequency signal transmission can be ensured.

[0086] Referring to Figures 4-6 , the control module 1 further comprises a temperature sensor 156 electrically connected to the main control unit 12 or the wireless communication control unit 13, for collecting temperature information and transmitting the temperature information to the main control unit 12 or the wireless communication control unit 13. The wireless communication control unit 13 comprises a Bluetooth communication chip; the Bluetooth communication chip is a low-power BLE Bluetooth communication chip. The BLE Bluetooth communication chip has a small size, which can further reduce the design size of the product. The Bluetooth communication chip specifically uses a low-power BLE Bluetooth communication chip, realizes stable and convenient wireless data transmission function, can operate under low energy consumption, and prolongs the battery life of the device.

[0087] Referring to Figure 14 , Figure 14 is Figure 4 the circuit principle diagram of the control module of the blood glucose meter. The control module 1 further comprises a crystal oscillator element 19; the crystal oscillator element 19 is electrically connected to the wireless communication control unit 13, and the crystal oscillator element 19 is used to provide a basic clock for the wireless communication control unit 13. Specifically, in the embodiment, the crystal oscillator frequency of the crystal oscillator element 19 is 32MHz. The crystal oscillator element 19 is a kind of electronic element for generating stable frequency oscillation by using the piezoelectric effect of quartz crystal. The crystal oscillator element 19 plays a role of providing a clock signal in an electronic device, and is a key component for ensuring normal operation of the device.

[0088] The master control unit 12 adopts an AFE chip for transmitting detection data to the wireless communication control unit 13 through an SPI / I2C / UART or GPIO interface. The AFE chip, i.e., an analog front end chip, is an electronic component playing an important role in the field of signal acquisition and processing; SPI (Serial Peripheral Interface), I2C (Inter-Integrated Circuit), UART (Universal Asynchronous Receiver / Transmitter), and GPIO (General-Purpose Input / Output) are several commonly used interfaces and communication protocols in electronic systems. In the embodiment, the interface can adopt an SPI interface or an I2C interface or an UART interface or a GPIO interface. In the product, which interface is adopted is selected according to the specific device communication requirement, and the embodiment of the application does not make specific limitation. The data interaction with the master control unit 12 is realized by using the SPI / I2C / UART or GPIO interface, thereby optimizing the detection data transmission efficiency and improving the overall performance and stability of the wireless communication system.

[0089] It is worth mentioning that, through reasonable layout and design of the second antenna 11, the master control unit 12, the wireless communication control unit 13, the first antenna 14, the battery module 16, the shielding assembly 17, the sensing unit connector 18, and the like on the printed circuit board 15, the performance of the NFC (Near Field Communication) antenna and the steel sheet antenna can be realized on the printed circuit board 15, thereby realizing optimized design in size and cost.

[0090] The blood glucose meter 100 and the control module 1 thereof disclosed in the above embodiment of the application are described in detail, and the principle and implementation mode of the application are described by using specific examples. The above embodiment is only used to help understand the blood glucose meter 100 and the control module 1 thereof and the core idea thereof; meanwhile, for the general skilled person in the art, the specific implementation mode and application range will be changed according to the idea of the application, and the content of the specification should not be understood as a limitation of the application.

Claims

1. A control module for a blood glucose meter, the control module comprising: The control module comprises: a printed circuit board; a main control unit arranged on the printed circuit board and configured to process original data output by a sensing unit to obtain detection data after starting to work; a wireless communication control unit arranged on the printed circuit board and adjacent to the main control unit, the wireless communication control unit being electrically connected to the main control unit and configured to receive the detection data and output a first radio frequency signal; a first antenna arranged on the printed circuit board and electrically connected to the wireless communication control unit, the first antenna being configured to receive the first radio frequency signal for wireless transmission; a shielding assembly arranged on the printed circuit board, the shielding assembly comprising a side plate, a top plate and a bottom plate, the side plate, the top plate and the bottom plate being arranged on three sides of the main control unit respectively and forming a full shadow shielding area for protecting the main control unit to block at least part of irradiation rays.

2. The control module of the blood glucose meter of claim 1, wherein, The printed circuit board has a first mounting position for arranging the sensing unit and a second mounting position for arranging the shielding assembly, the side plate is arranged in the second mounting position, and the top plate and the bottom plate are arranged oppositely and connected to the side plate; the top plate is provided with a connecting portion connected to one end of the side plate away from the bottom plate, and the bottom plate is integrally formed with the side plate.

3. The control module of the blood glucose meter of claim 2, wherein, The control module further comprises a second antenna for receiving a second radio frequency signal, the second antenna being arranged on the printed circuit board and electrically connected to the main control unit, the second radio frequency signal being an NFC radio frequency signal; the second antenna comprises a conductive circuit formed on the printed circuit board; The second antenna is formed on the bottom layer and the next bottom layer of the printed circuit board through a wire layout; the number of turns of the second antenna is greater than or equal to 4.

4. The control module of the blood glucose meter of claim 3, wherein, The control module further comprises a battery module arranged on the printed circuit board; the battery module, the shielding assembly and the main control unit are located on a straight line; the battery module and the shielding assembly are configured to jointly block the at least part of irradiation rays; the wireless communication control unit is arranged in the full shadow shielding area; the control module further comprises a sensing unit connector arranged on the printed circuit board and configured to be electrically connected between the sensing unit and the main control unit; the first mounting position comprises a head mounting area for partially arranging the sensing unit and a tail mounting area in communication with the head mounting area, and the sensing unit connector is arranged in the tail mounting area.

5. The control module of the blood glucose meter of claim 4, wherein, The battery module comprises a battery and a battery seat, the battery seat is connected with the printed circuit board, and the battery is arranged between the battery seat and the printed circuit board; the battery seat comprises a main body part and at least two welding legs, at least one blocking leg and at least one pressing spring arranged on the main body part, the main body part is arranged on the side of the battery away from the printed circuit board, the at least two welding legs are arranged oppositely and connected with the printed circuit board, the blocking leg abuts against the battery to limit the battery between the battery seat and the printed circuit board, and the pressing spring abuts against the battery to press the battery to the side of the printed circuit board; the height of the battery seat is greater than 1.5 mm, and the thickness of the main body part is greater than 0.1 mm.

6. The control module of the blood glucose meter of claim 4, wherein, The printed circuit board is circular, and the battery module, the first mounting part, the sensing unit connector, the main control unit, the wireless communication control unit are sequentially arranged around the second mounting part; two ends of the second antenna are connected with the main control unit and form a ring arrangement area, and the battery module, the first mounting part, the sensing unit connector, the main control unit, the wireless communication control unit and the second mounting part are located in the ring arrangement area; the first antenna is arranged around the periphery of the battery module, the second mounting part, the wireless communication control unit, the main control unit and the sensing unit connector; the first antenna is arranged around the periphery of the second antenna; the length of the second mounting part is greater than or equal to 3 mm, and the width is greater than or equal to 1 mm; the diameter of the head mounting area is greater than 2.5 mm; the length of the tail mounting area is greater than 2.5 mm, and the width is greater than 1 mm.

7. The control module of the blood glucose meter according to claim 4, wherein, The first antenna is a steel sheet antenna, which comprises an antenna main body arranged above the printed circuit board and at least one feeding part connected with the antenna main body and the printed circuit board, and the at least one feeding part is electrically connected with the wireless communication control unit through a microstrip line; The at least one feeding part is provided with an antenna clearance area; the microstrip line comprises a line formed on the printed circuit board; The at least one feeding part comprises a first pin, a second pin, a third pin and a fourth pin, the first pin and the second pin are arranged at one end of the antenna main body, the fourth pin is arranged at the middle of the antenna main body, and the third pin is arranged between the first pin or the second pin and the fourth pin; The first pin and the second pin are ground feeding pins, the third pin is an antenna feeding point, and the fourth pin is suspended or a ground feeding pin; The first pin and the second pin are arranged close to the battery module, and the third pin is arranged close to the wireless communication control unit and is electrically connected with the wireless communication control unit through the microstrip line; The fourth pin is arranged close to the main control unit; the antenna clearance area comprises a first clearance area and a second clearance area, the third pin is arranged in the first clearance area, and the fourth pin is arranged in the second clearance area; the first pin, the second pin, the third pin and the fourth pin have the same height; the height of the antenna body is greater than 1 mm, the thickness of the antenna body is greater than 0.1 mm, and the width of the antenna body is greater than 0.8 mm; the distance between the pads of the third pin and the fourth pin and the copper area on the printed circuit board is greater than 0.8 mm; the length of the third pin away from the end of the antenna body close to the first pin is greater than 15 mm.

8. The control module of the blood glucose meter of claim 7, wherein, The control module further comprises a matching network, the matching network is electrically connected to the wireless communication control unit and the steel sheet antenna through the microstrip line; the matching network is a T-shaped network, the matching network comprises a first matching unit, a second matching unit and a third matching unit, one of the first matching unit and the second matching unit is connected to the wireless communication control unit, and the other is connected to the steel sheet antenna; the third matching unit is connected between the node between the first matching unit and the second matching unit and the ground; the first matching unit is an inductive or capacitive element, the second matching unit is an inductive or capacitive element, and the third matching unit is an inductive or capacitive element.

9. The control module of the blood glucose meter of claim 1, wherein, The control module further comprises a temperature sensor, the temperature sensor is electrically connected to the main control unit or the wireless communication control unit, and is used for collecting temperature information and transmitting the temperature information to the main control unit or the wireless communication control unit; the wireless communication control unit comprises a Bluetooth communication chip; the Bluetooth communication chip is a BLE Bluetooth communication chip; the control module further comprises a crystal oscillator element, the crystal oscillator element is electrically connected to the wireless communication control unit, and is used for providing a basic clock for the wireless communication control unit; the main control unit is used for transmitting the detection data to the wireless communication control unit through an SPI / I2C / UART or GPIO interface.

10. A blood glucose meter, characterized by, The blood glucose detector comprises the control module according to any one of claims 1-9.

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