Electronic work card

Abstract

The utility model provides an electronic work card which comprises a circuit board used for bearing a functional circuit, and an ink screen is attached to the back face of the circuit board. The battery and the ink screen are electrically connected to a functional circuit on the circuit board respectively; the functional circuit comprises a Bluetooth wireless radio frequency main control chip circuit composed of an MCU chip, a first inductor is electrically connected between two antenna pins of the MCU chip, one end of the first inductor is electrically connected with one end of a second inductor through a first coupling capacitor, and the other end of the second inductor is electrically connected to a radio frequency antenna. The ink screen is adopted to replace a traditional liquid crystal screen, energy consumption is greatly reduced, static display almost consumes no electricity and only consumes energy during picture refreshing, meanwhile, heat generation is reduced, the problem that the service life is shortened due to overheating is solved, and the working environment of internal elements is more stable.

Description

Technical Field

[0001] This application relates to the field of electronic employee badges, and in particular to an electronic employee badge. Background Technology

[0002] With the continuous development of electronic technology, electronic products are increasingly replacing various other products, such as electronic office supplies and electronic employee badges. Moreover, electronic employee badges, in addition to having the functions of ordinary employee badges, also have the advantages of being able to modify their content and being reusable.

[0003] Current electronic name tags generally use LCD screens. Due to the structure of LCD screens, the content display requires the use of internal light-emitting elements. Moreover, the light-emitting elements need to be lit for a long time, which not only consumes a lot of electrical energy but also generates a lot of heat. This results in energy consumption and a short lifespan. Therefore, this utility model proposes an electronic name tag to at least partially solve the problems that may exist in the prior art. Utility Model Content

[0004] In view of the aforementioned problems, this application is made to provide an electronic work badge that overcomes or at least partially solves the aforementioned problems.

[0005] An electronic employee badge, comprising:

[0006] A circuit board for carrying functional circuits, wherein an e-ink screen is attached to the back of the circuit board;

[0007] The battery and the e-ink screen are respectively electrically connected to the functional circuits on the circuit board;

[0008] The functional circuit includes a Bluetooth wireless radio frequency main control chip circuit composed of an MCU chip. A first inductor is electrically connected between the two antenna pins of the MCU chip. One end of the first inductor is electrically connected to one end of a second inductor through a first coupling capacitor. The other end of the second inductor is electrically connected to the radio frequency antenna.

[0009] Preferably, it also includes an outer shell composed of an upper shell, a bottom shell, and a middle frame;

[0010] The e-ink screen, circuit board, and battery are all located within the space inside the housing;

[0011] One end of the outer casing is also provided with a connection hole.

[0012] Preferably, it also includes an indicator light circuit, which is electrically connected to the Bluetooth wireless radio frequency main control chip circuit;

[0013] The bottom shell is also provided with lamp holes;

[0014] The indicator light in the indicator light circuit is located below the lamp hole.

[0015] Preferably, the upper shell is provided with a display window, the size of which is no larger than that of the e-ink screen.

[0016] Preferably, a transparent panel is provided at the location of the display window.

[0017] Preferably, the housing is further provided with a USB interface, which is electrically connected to a charging circuit on the circuit board; the charging circuit is electrically connected to the first input terminal of the battery and power conversion circuit.

[0018] The second input terminal of the power conversion circuit is electrically connected to the battery;

[0019] The first and second input terminals of the power conversion circuit are provided by the anodes of two diodes, and the cathodes of the two diodes are connected to the output terminal of the three-terminal regulator. The output terminal of the three-terminal regulator serves as the output terminal of the power conversion circuit for outputting DC 3.3V.

[0020] Preferably, it also includes a page-turning button and a reset button electrically connected to the Bluetooth wireless radio frequency main control chip circuit.

[0021] Preferably, the Bluetooth wireless radio frequency main control chip circuit is also electrically connected to the FLASH storage circuit.

[0022] Preferably, the Bluetooth wireless radio frequency main control chip circuit is also electrically connected to the screen driving circuit;

[0023] The e-ink screen is electrically connected to the screen driving circuit via an FPC.

[0024] This application has the following advantages:

[0025] In the embodiments of this application, an e-ink screen is attached to the back of a circuit board used to carry functional circuits. The battery and the e-ink screen are electrically connected to the functional circuits on the circuit board. The functional circuits include a Bluetooth wireless radio frequency main control chip circuit composed of an MCU chip. A first inductor is electrically connected between the two antenna pins of the MCU chip. One end of the first inductor is electrically connected to one end of a second inductor through a first coupling capacitor, and the other end of the second inductor is electrically connected to a radio frequency antenna. By using an e-ink screen instead of a traditional LCD screen, energy consumption is greatly reduced. Its static display consumes almost no power, only consuming power when refreshing the screen, which contrasts sharply with the power consumption of an LCD screen when its light-emitting elements are lit for extended periods. Simultaneously, heat generation is reduced, avoiding the problem of shortened lifespan due to overheating, and the internal components operate in a more stable environment. Furthermore, the Bluetooth communication function is optimized through a specific Bluetooth wireless radio frequency main control chip circuit design, facilitating data interaction. Moreover, the e-ink screen, connected to the screen driver circuit via an FPC, ensures stable connection, saves internal space, guarantees signal transmission quality, and allows for flexible adjustment of display parameters, comprehensively improving the performance of the electronic name tag. Attached Figure Description

[0026] To more clearly illustrate the technical solution of this application, the drawings used in the description of this application will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0027] Figure 1 This is a schematic diagram of the structure of an electronic work badge provided in one embodiment of this application;

[0028] Figure 2 This is an exploded view of an electronic work badge according to an embodiment of this application;

[0029] Figure 3 This is a schematic diagram of the Bluetooth wireless radio frequency main control chip circuit structure of an electronic work badge according to an embodiment of this application;

[0030] Figure 4 This application provides a schematic diagram of a battery detection circuit structure for an electronic work badge according to one embodiment;

[0031] Figure 5 A schematic diagram of the FLASH storage circuit structure of an electronic work badge is provided in one embodiment of this application;

[0032] Figure 6 This application provides a schematic diagram of an e-ink screen driving circuit structure for an electronic work badge according to one embodiment;

[0033] Figure 7This application provides a schematic diagram of a USB charging circuit structure for an electronic work badge according to one embodiment;

[0034] Figure 8 This application provides a schematic diagram of the power conversion circuit structure for an electronic work badge according to one embodiment;

[0035] Figure 9 This application provides a schematic diagram of the indicator light circuit structure for an electronic work badge according to one embodiment;

[0036] Figure 10 This application provides a schematic diagram of the reset and page-turning button structure for an electronic work badge according to one embodiment. Detailed Implementation

[0037] To make the objectives, features, and advantages of this application more apparent and understandable, the application will be further described in detail below with reference to the accompanying drawings and specific embodiments. Obviously, the described embodiments are only some, not all, of the embodiments of this application. All other embodiments obtained by those skilled in the art based on the embodiments of this application without inventive effort are within the scope of protection of this application.

[0038] Reference Figures 1 to 3 The illustration shows an electronic work badge provided in an embodiment of this application, comprising: a circuit board 101 for carrying functional circuits, with an e-ink screen 102 attached to the back of the circuit board 101; a battery 111 and the e-ink screen 102 are electrically connected to the functional circuits on the circuit board 101; the functional circuits include a Bluetooth wireless radio frequency main control chip circuit composed of an MCU chip, with a first inductor L4 electrically connected between the two antenna pins of the MCU chip, one end of the first inductor L4 being electrically connected to one end of a second inductor L5 through a first coupling capacitor C49, and the other end of the second inductor L5 being electrically connected to a radio frequency antenna.

[0039] This application solves the problem of excessive power consumption caused by the prolonged operation of LCD screens in traditional electronic employee badges by using e-ink displays. The e-ink displays work by altering the arrangement of black and white ink microcapsules using an electric field. They only consume power when refreshing the screen, consuming almost no power when displaying static content. For example, in scenarios where employee badges typically display fixed information such as employee names, departments, and employee numbers, e-ink displays can maintain this information for extended periods without continuous power supply, significantly reducing energy consumption. Traditional LCD screens generate significant heat when their light-emitting elements are on for extended periods, affecting user experience and shortening lifespan. The e-ink displays in this application, however, do not generate the heat problems associated with prolonged operation of LCD screens, thus minimizing heat generation during normal use. Without the adverse effects of high heat, the operating temperature of the internal circuit boards and other electronic components remains relatively stable, effectively extending the overall lifespan of the electronic employee badge.

[0040] Furthermore, the functional circuit of this application includes a Bluetooth wireless radio frequency main control chip circuit composed of an MCU chip. Through the connection of inductors and coupling capacitors in the chip circuit, such as the first inductor L4 electrically connecting between the two antenna pins of the MCU chip, one end of the first inductor L4 being electrically connected to one end of the second inductor L5 through a first coupling capacitor C49, and the other end of the second inductor L5 being electrically connected to the radio frequency antenna, this circuit structure helps optimize the transmission and reception of Bluetooth signals. This allows the electronic employee badge to have both low-power display and more stable and efficient Bluetooth communication functions, facilitating data interaction with other devices, such as transmitting attendance data and receiving work task reminders.

[0041] The following will further describe an electronic work badge in various exemplary embodiments of this application.

[0042] In an embodiment of this application, an electronic work badge is provided, wherein, as... Figure 2 As shown, it also includes an outer shell composed of an upper shell 103, a bottom shell 104, and a middle frame 109; the e-ink screen 102, the circuit board 101, and the battery 111 are all located within the space of the outer shell; one end of the outer shell is also provided with a connection hole 108. For example, a lanyard or clip can be connected through this connection hole for wearing the electronic name tag; such as Figure 9 As shown, it also includes an indicator light circuit, which is electrically connected to the Bluetooth wireless radio frequency main control chip circuit; the bottom shell 104 is also provided with a lamp hole 107; the indicator light 105 in the indicator light circuit is located below the lamp hole 107.

[0043] As an example, an indicator light circuit is electrically connected to the Bluetooth wireless radio frequency main control chip circuit; such as... Figure 1 As shown, a lamp hole 108 is provided on one side of the e-ink screen 102 on the outer casing, wherein an indicator light 105 in the indicator light circuit is located below the lamp hole 108. The indicator light 105 can preferably be a light-emitting diode, specifically, as shown... Figure 9 As shown, the aforementioned light-emitting diode (LED) can preferably be an RGB LED D18, which integrates three LEDs internally. The anodes of the three LEDs are electrically connected to each other and are powered by an external VDD3V supply. Each LED is electrically connected to the MCU chip of the Bluetooth wireless radio frequency main control chip circuit through current-limiting resistors R45, R58, and R59. The MCU chip controls the indicator light 105 according to the status. For example, pressing the reset button triggers the red LED. Multiple groups of indicator lights 105 can also be configured to indicate different functions; for example, each button can correspond to one indicator light 105.

[0044] In an embodiment of this application, the upper shell 103 is provided with a display window 106, the size of which is not larger than that of the e-ink screen 102.

[0045] Furthermore, a transparent plate is provided at the position of the display window 106.

[0046] The side of the housing is also provided with a USB interface 112, which is preferably a Type-C interface. The USB interface 112 is electrically connected to the charging circuit on the circuit board 101. Figure 7 As shown; the charging circuit is electrically connected to the battery 111 and the first input terminal of the power conversion circuit; refer to Figure 8 As shown, the second input terminal of the power conversion circuit is electrically connected to the battery 111. The first and second input terminals of the power conversion circuit are respectively provided by the anodes of two diodes, and the cathodes of the two diodes are connected to the output terminal of the three-terminal regulator U6. The output terminal of the three-terminal regulator U6 serves as the output terminal of the power conversion circuit, outputting DC 3.3V. The charging circuit can also provide power while charging. Since the cathodes of diodes D5 and D9 are electrically connected to the input terminal of the three-terminal regulator U6, the voltage provided by the battery 111 is 4.2V, which, after passing through diode D5, is approximately 3.5-4V. The 5V provided by the charging circuit through the USB port, after passing through diode D9, is approximately 4.3-4.8V. Therefore, during charging, the 5V provided by the USB port powers the downstream components. When not charging, the battery 111 powers the electronic components in the entire work badge. The battery 111 is preferably a 500mAh lithium battery. The battery power supply is achieved through... Figure 4 The battery detection circuit shown is used for testing.

[0047] In the embodiments of this application, such as Figure 10 As shown, the buttons include a page-turning button and a reset button electrically connected to the Bluetooth wireless radio frequency main control chip circuit. These buttons are electrically connected to the MCU unit. The reset button provides a switching signal to the RESET pin of the MCU unit, resetting the work badge. The page-turning button allows users to turn pages of the content currently displayed on the e-ink screen 102.

[0048] Furthermore, such as Figure 5 As shown, the Bluetooth wireless RF main control chip circuit is also electrically connected to the FLASH storage circuit. The Bluetooth wireless RF main control chip circuit is also electrically connected to the screen driving circuit; the e-ink screen 102 is electrically connected to the screen driving circuit via an FPC. Specifically, the MCU unit in the Bluetooth wireless RF main control chip circuit is electrically connected to the FLASH storage circuit, and information can be stored through the FLASH storage circuit. For example, it can store multiple pages of information for display. When the page-turning button is pressed, the MCU unit calls the information stored in the FLASH storage circuit and, through... Figure 6 The screen driver circuit shown drives the aforementioned e-ink screen to display content. The e-ink screen is connected to the screen driver circuit via the aforementioned FPC. The FPC possesses excellent flexibility and reliable electrical connection performance. In small devices like electronic name tags, it can adapt to complex spatial layouts between the e-ink screen and the screen driver circuit. The flexibility of the FPC allows it to be folded and bent, thus making more efficient use of the internal space. It enables effective connection between the e-ink screen and the screen driver circuit within a confined space, avoiding excessive internal space occupation due to rigid wiring, and contributing to a more compact overall structure for the electronic name tag.

[0049] As an example, the above-mentioned device can preferably use a 3.7-inch e-ink screen 102, with a corresponding circuit board 101 assembled inside the casing. It can include a three-color LED indicator 105, which illuminates the corresponding color during operation. It has a built-in 500mAh lithium battery and a USB charging port 112, eliminating concerns about battery depletion and replacement; simply recharge it when needed. It also features a button for image page turning. The integrated MCU unit in this 3.7-inch employee badge provides a standard 2.4G Bluetooth module, allowing users to modify screen content and change images via a mobile app. Communication between the two devices is via 2.4GHz wireless radio frequency. Users need to enable Bluetooth on their phone, open the app, locate the corresponding employee badge, and then modify the information and content. The electronic employee badge also includes a FLASH storage circuit, capable of storing multiple images and text. The button allows for image changing and page turning, making it very convenient. As a low-power Bluetooth wireless radio frequency product, a single charge provides extended use.

[0050] Although preferred embodiments of the present application have been described, those skilled in the art, upon learning the basic inventive concept, can make other changes and modifications to these embodiments. Therefore, the appended claims are intended to be interpreted as including the preferred embodiments as well as all changes and modifications falling within the scope of the embodiments of the present application.

[0051] Finally, it should be noted that in this document, relational terms such as "first" and "second" are used only to distinguish one entity or operation from another, and do not necessarily require or imply any such actual relationship or order between these entities or operations. Furthermore, the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or terminal device that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or terminal device. Without further limitations, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or terminal device that includes said element.

[0052] The above provides a detailed description of an electronic work badge provided by this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. An electronic employee badge, characterized in that, include: A circuit board for carrying functional circuits, wherein an e-ink screen is attached to the back of the circuit board; The battery and the e-ink screen are respectively electrically connected to the functional circuits on the circuit board; The functional circuit includes a Bluetooth wireless radio frequency main control chip circuit composed of an MCU chip. A first inductor is electrically connected between the two antenna pins of the MCU chip. One end of the first inductor is electrically connected to one end of a second inductor through a first coupling capacitor. The other end of the second inductor is electrically connected to the radio frequency antenna.

2. The electronic work badge according to claim 1, characterized in that, It also includes the outer shell, which consists of the upper shell, the bottom shell, and the middle frame; The e-ink screen, circuit board, and battery are all located within the space inside the housing; One end of the outer casing is also provided with a connection hole.

3. The electronic work badge according to claim 2, characterized in that, It also includes an indicator light circuit, which is electrically connected to the Bluetooth wireless radio frequency main control chip circuit; The bottom shell is also provided with lamp holes; The indicator light in the indicator light circuit is located at the lamp hole position.

4. The electronic work badge according to claim 2, characterized in that, The upper shell is provided with a display window, the size of which is no larger than that of the e-ink screen.

5. The electronic work badge according to claim 4, characterized in that, A transparent panel is provided at the location of the display window.

6. The electronic work badge according to claim 2, characterized in that, The housing is also provided with a USB interface, which is electrically connected to a charging circuit on the circuit board; the charging circuit is electrically connected to the first input terminal of the battery and power conversion circuit. The second input terminal of the power conversion circuit is electrically connected to the battery; The first and second input terminals of the power conversion circuit are provided by the anodes of two diodes, and the cathodes of the two diodes are connected to the output terminal of the three-terminal regulator. The output terminal of the three-terminal regulator serves as the output terminal of the power conversion circuit for outputting DC 3.3V.

7. The electronic work badge according to claim 6, characterized in that, It also includes a page-turning button and a reset button that are electrically connected to the Bluetooth wireless radio frequency main control chip circuit.

8. The electronic work badge according to claim 1, characterized in that, The Bluetooth wireless radio frequency main control chip circuit is also electrically connected to the FLASH storage circuit.

9. The electronic work badge according to claim 1, characterized in that, The Bluetooth wireless radio frequency main control chip circuit is also electrically connected to the screen driving circuit. The e-ink screen is electrically connected to the screen driving circuit via an FPC.

Images