Rechargeable serial port screen and portable display device

Abstract

The utility model provides a rechargeable serial port screen and a portable display device, and relates to the technical field of display equipment. The rechargeable serial port screen comprises a serial port screen body, a battery module and a charging management circuit module, the serial port screen body is electrically connected with the battery module, and the charging management circuit module is electrically connected with the serial port screen body and the battery module. The charging management circuit module comprises a charging management chip and a charging prompt circuit, the power input end of the charging management chip is connected to the battery module, the power output end of the charging management chip is connected to the serial port screen body, and one end of the charging prompt circuit is connected between the power input end of the charging management chip and the battery module. And the other end of the charging prompt circuit is connected to the detection end of the charging management chip. The rechargeable serial port screen can achieve the technical effect of improving the use convenience.

Description

Technical Field

[0001] The present application relates to the technical field of display devices, and in particular to a rechargeable serial port screen and a portable display device. Background Art

[0002] A serial port display is a configurable and redevelopable intelligent serial port-controlled display screen. It features a TFT color LCD display control module with serial communication. It can connect to external devices such as PLCs, inverters, temperature controllers, and data acquisition modules. The display displays relevant data, and inputs parameters and commands via touch screens, buttons, and mice, enabling user-machine interaction. It is widely used in various display fields, including industrial automation, smart home appliances, transportation rails, data centers, charging stations, power and medical equipment, national defense and security, and shared equipment.

[0003] Currently, popular serial port screens on the market generally do not have batteries. They are powered on and off when the device is powered on, and can only be installed and used on industrial equipment (i.e. non-portable equipment). For the portable device market, only lithium batteries and charging devices can be added, but this will increase additional costs and structural problems, making it inconvenient to use. Utility Model Content

[0004] The purpose of this application is to provide a rechargeable serial port screen and a portable display device, which can achieve the technical effect of improving the convenience of use.

[0005] In a first aspect, the present application provides a rechargeable serial port screen, comprising a serial port screen body, a battery module, and a charging management circuit module;

[0006] The serial port screen body is electrically connected to the battery module, and the charging management circuit module is electrically connected to the serial port screen body and the battery module respectively;

[0007] The charging management circuit module includes a charging management chip and a charging prompt circuit. The power input end of the charging management chip is connected to the battery module, and the power output end of the charging management chip is connected to the serial port screen body. One end of the charging prompt circuit is connected between the power input end of the charging management chip and the battery module, and the other end of the charging prompt circuit is connected to the detection end of the charging management chip.

[0008] In the above implementation process, the rechargeable serial port screen is provided with a battery module and a charging management circuit module, and the charging management circuit module is electrically connected to the serial port screen body and the battery module respectively. The battery module supplies power to the serial port screen body, and the charging management circuit module charges the battery module when the battery module is low on power. In addition, the charging management circuit module includes a charging management chip and a charging prompt circuit. The external power supply is controlled by the charging management chip to charge the battery module, and the charging prompt circuit can provide corresponding prompts for the specific charging status, such as charging, charging completed, etc. Therefore, compared with the traditional serial port screen, the rechargeable serial port screen is more suitable for application in the portable market, and users do not need to add additional batteries and charging modules, the cost is low, and the technical effect of improving ease of use can be achieved.

[0009] Furthermore, the charging management circuit module also includes a filter capacitor, one end of the filter capacitor is connected to the power output end of the charging management chip, and the other end of the filter capacitor is connected to the ground end of the charging management chip, and the ground end of the charging management chip is grounded.

[0010] In the above implementation process, the power output end of the charging management chip is filtered by setting a filter capacitor to effectively filter out the AC component in the DC power supply, ensuring that the DC power output from the power output end of the charging management chip is more stable.

[0011] Furthermore, the charging management circuit module also includes a temperature detection resistor, one end of the temperature detection resistor is connected to the battery temperature detection input end of the charging management chip, and the other end of the temperature detection resistor is grounded.

[0012] In the above implementation process, the temperature detection resistor is connected to the battery temperature detection input terminal of the charging management chip to realize the battery temperature detection function.

[0013] Furthermore, the charging management circuit module also includes a charging current detection resistor, one end of the charging current detection resistor is connected to the battery charging current detection input end of the charging management chip, and the other end of the charging current detection resistor is grounded.

[0014] In the above implementation process, the charging current detection resistor is connected to the battery charging current detection input terminal of the charging management chip to achieve constant current charging current setting and charging current monitoring.

[0015] Furthermore, the charging reminder circuit includes a light emitting device, one end of the light emitting device is connected to the power input end of the charging management chip, and one end of the light emitting device is connected to the charging completion indication end of the charging management chip.

[0016] In the above implementation process, the light emitter is connected to the charging completion indication terminal of the charging management chip, so that the light emitter will light up after charging is completed, indicating that charging is completed.

[0017] Furthermore, the light emitter is an LED device.

[0018] Furthermore, the charging reminder circuit also includes a resistor, and the resistor is connected in series with the LED device.

[0019] Furthermore, the charging reminder circuit also includes a speaker, and the speaker is connected in series with the light emitter.

[0020] In the above implementation process, the speaker is connected to the charging completion indication terminal of the charging management chip, so that the speaker will emit a prompt sound after charging is completed, indicating that charging is complete.

[0021] Furthermore, the battery module is a lithium battery module.

[0022] In a second aspect, the present application provides a portable display device comprising the rechargeable serial port screen described in any one of the first aspects.

[0023] Other features and advantages disclosed in the present application will be described in the following description, or some features and advantages can be inferred or determined without doubt from the description, or can be learned by implementing the above-mentioned technology disclosed in the present application.

[0024] In order to make the above-mentioned objects, features and advantages of the present application more obvious and easy to understand, preferred embodiments are given below and described in detail with reference to the accompanying drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments of the present application. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0026] Figure 1 A schematic diagram of the structure of a rechargeable serial port screen provided in an embodiment of the present application;

[0027] Figure 2 This is a circuit diagram of the charging management circuit module provided in an embodiment of the present application. DETAILED DESCRIPTION

[0028] The technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the drawings in the embodiments of the present application. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all of the embodiments. The components of the embodiments of the present application generally described and shown in the drawings here can be arranged and designed in various different configurations. Therefore, the following detailed description of the embodiments of the present application provided in the drawings is not intended to limit the scope of the application for protection, but merely represents the selected embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those skilled in the art without making creative work are within the scope of protection of this application.

[0029] In this application, terms such as "upper," "lower," "left," "right," "front," "back," "top," "bottom," "inner," "outer," "center," "vertical," "horizontal," "transverse," and "longitudinal" indicate positions or locations based on the positions or locations shown in the accompanying drawings. These terms are primarily intended to better describe this application and its embodiments and are not intended to limit the devices, elements, or components indicated to having a specific orientation, or to being constructed or operated in a specific orientation.

[0030] Furthermore, some of the above terms may be used to express other meanings besides indicating a position or location. For example, the term "on" may also be used to indicate a dependency or connection in certain circumstances. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0031] Furthermore, the terms "installed," "disposed," "provided with," "connected," and "connected" should be interpreted broadly. For example, they can refer to fixed connections, removable connections, or integral structures; mechanical connections or point connections; direct connections, indirect connections through an intermediary, or internal communication between two devices, elements, or components. Those skilled in the art will understand the specific meanings of these terms in this application based on the specific circumstances.

[0032] Furthermore, the terms "first," "second," etc., are primarily used to distinguish between different devices, elements, or components (which may or may not be of the same type and configuration), and are not intended to indicate or imply the relative importance or quantity of the devices, elements, or components indicated. Unless otherwise specified, "plurality" means two or more.

[0033] The embodiment of the present application provides a rechargeable serial port screen and a portable display device, which can be applied to a portable serial port screen; the rechargeable serial port screen is provided with a battery module and a charging management circuit module, and the charging management circuit module is electrically connected to the serial port screen body and the battery module respectively, and the battery module is powered by the battery module. When the battery module is low on power, the battery module is charged by the charging management circuit module; in addition, the charging management circuit module includes a charging management chip and a charging prompt circuit, and the charging management chip controls the external power supply to charge the battery module, and the charging prompt circuit can provide corresponding prompts for the specific charging status, such as charging, charging completed, etc.; therefore, compared with the traditional serial port screen, the rechargeable serial port screen is more suitable for application in the portable market, and users do not need to add additional batteries and charging modules, the cost is low, and the technical effect of improving ease of use can be achieved.

[0034] See Figure 1 and Figure 2 , Figure 1 This is a schematic diagram of the structure of the rechargeable serial port screen provided in the embodiment of the present application. Figure 2 This is a circuit diagram of a charging management circuit module provided in an embodiment of the present application; the rechargeable serial port screen includes a serial port screen body 100, a battery module 200, and a charging management circuit module 300;

[0035] For example, the serial port screen body 100 is electrically connected to the battery module 200, and the charging management circuit module 300 is electrically connected to the serial port screen body 100 and the battery module 200 respectively;

[0036] Among them, the serial port screen body 100 can be powered by the battery module 200 to enable the serial port screen body 100 to operate normally; the battery module 200 is charged by connecting to an external power supply through the charging management circuit module 300.

[0037] Exemplarily, the charging management circuit module 300 includes a charging management chip and a charging prompt circuit. The power input end of the charging management chip is connected to the battery module 200, and the power output end of the charging management chip is connected to the serial port screen body 100. One end of the charging prompt circuit is connected between the power input end of the charging management chip and the battery module, and the other end of the charging prompt circuit is connected to the detection end of the charging management chip.

[0038] In some embodiments, the rechargeable serial port screen is provided with a battery module 200 and a charging management circuit module 300, and the charging management circuit module 300 is electrically connected to the serial port screen body 100 and the battery module 200 respectively. The battery module 200 supplies power to the serial port screen body 100, and when the battery module 200 is insufficient, the battery module 200 is charged by the charging management circuit module 300; in addition, the charging management circuit module 300 includes a charging management chip and a charging prompt circuit, and the charging management chip controls the external power supply to charge the battery module 200, and the charging prompt circuit can provide corresponding prompts for the specific charging status, such as charging, charging completed, etc.; therefore, compared with the traditional serial port screen, the rechargeable serial port screen is more suitable for application in the portable market, and users do not need to add additional batteries and charging modules, the cost is low, and the technical effect of improving ease of use can be achieved.

[0039] For example, Figure 2 As shown, the charging management chip is labeled U1; wherein, the charging management chip U1 is provided with nine pins 0 to 8, among which:

[0040] Pin 1 (TEMP): Battery temperature detection input. Connect the TEMP pin to the output of the battery's NTC sensor. If the voltage at the TEMP pin is less than 45% of the input voltage or greater than 80% of the input voltage, it means the battery temperature is too low or too high, and charging is suspended. If TEMP is directly connected to GND, the battery temperature detection function is canceled, and other charging functions are normal.

[0041] Pin 2 (PROG): Battery charge current detection input, used for constant current charge current setting and charge current monitoring. Connecting an external resistor from the PROG pin to the ground terminal can program the charge current;

[0042] Pin 3 (GND): ground terminal;

[0043] Pin 4 (VCC): Power input terminal of the charging management chip U1, used to connect to the external power supply VBUS;

[0044] Pin 5 (BAT): The power output terminal of the charging management chip U1, used to output DC power (VBAT_BATTERY) to charge the battery module 200;

[0045] Pin 6 (STDBY): Power charging completion indication terminal. When the battery is fully charged, the STDBY pin is pulled low by the internal switch, indicating that charging is complete. Otherwise, the STDBY pin is in a high-impedance state.

[0046] Pin 7 (CHRG): Open-drain output charging status indicator. When the charger is charging the battery, the CHRG pin is pulled low by the internal switch, indicating that charging is in progress; otherwise, the CHRG pin is in a high-impedance state.

[0047] Pin 8 (EN): Enable terminal.

[0048] Exemplarily, the charging management circuit module also includes a filter capacitor C33, one end of the filter capacitor C33 is connected to the power output end of the charging management chip U1, and the other end of the filter capacitor C33 is connected to the ground end of the charging management chip U1, and the ground end of the charging management chip U1 is grounded.

[0049] For example, by setting the filter capacitor C33 to filter the power output terminal of the charging management chip U1, the AC component in the DC power supply is effectively filtered out, ensuring that the DC power output from the power output terminal of the charging management chip U1 is more stable.

[0050] Exemplarily, the charging management circuit module further includes a temperature detection resistor R29 , one end of which is connected to the battery temperature detection input end of the charging management chip U1 , and the other end of which is grounded.

[0051] Exemplarily, the temperature detection resistor R29 is connected to the battery temperature detection input terminal of the charging management chip U1 to implement the battery temperature detection function.

[0052] Exemplarily, the charging management circuit module further includes a charging current detection resistor R31 , one end of which is connected to the battery charging current detection input end of the charging management chip U1 , and the other end of which is grounded.

[0053] Exemplarily, the charging current detection resistor R31 is connected to the battery charging current detection input terminal of the charging management chip U1 to achieve constant current charging current setting and charging current monitoring.

[0054] Exemplarily, the charging prompt circuit includes a light emitting diode (LED), one end of which is connected to the power input end of the charging management chip U1 , and one end of which is connected to the charging completion indication end of the charging management chip U1 .

[0055] For example, the light emitting device LED is connected to the charging completion indication terminal of the charging management chip U1, so that the light emitting device LED will light up after charging is completed, indicating that charging is completed.

[0056] Exemplarily, the light emitter is an LED device.

[0057] Exemplarily, the charging reminder circuit further includes a resistor, which is connected in series with the LED device.

[0058] Exemplarily, the charging reminder circuit further includes a speaker, which is connected in series with the light emitter.

[0059] For example, the speaker is connected to the charging completion indication terminal of the charging management chip U1, so that after charging is completed, the speaker will emit a prompt sound, indicating that charging is complete.

[0060] Exemplarily, the battery module is a lithium battery module.

[0061] For example, an embodiment of the present application provides a portable display device, comprising Figure 1 and Figure 2 The rechargeable serial port screen shown.

[0062] In some implementation scenarios, combined with Figures 1 to 2 As shown, the embodiment of the present application provides a rechargeable serial port screen with its own power supply (battery module 200), and the addition of a charging management circuit module 300 can solve the disadvantage that the serial port screen cannot be promoted in the portable market; for example, the specific circuit of the rechargeable serial port screen structure is as follows Figure 2 As shown:

[0063] The serial port screen 100 has a new charging management chip. The power is input from pin 4 of the charging management chip, and output from pin 5 after passing through the charging management chip, simultaneously supplying power to the lithium battery and the serial port screen. Pin 6 of the charging management chip is the charging completion prompt pin. When charging is completed, the LED will light up, indicating that charging is complete. Pin 5 of the charging management chip outputs power to charge the lithium battery and the serial port screen. After unplugging the power supply, the lithium battery directly supplies power to the serial port screen.

[0064] The rechargeable serial port screen has at least the following technical effects:

[0065] 1. Compared with traditional serial port screen, it is more suitable for application in the portable market;

[0066] 2. Low cost, users do not need to add additional batteries and charging modules;

[0067] 3. The development cycle is fast, and Android screen development is simple compared to other industries.

[0068] In all embodiments of the present application, "big" and "small" are relative, "more" and "less" are relative, and "up" and "down" are relative. The expressions of such relative terms will not be elaborated in the embodiments of the present application.

[0069] It should be understood that the phrases “in this embodiment,” “in an embodiment of the present application,” or “as an optional implementation” mentioned throughout the specification mean that specific features, structures, or characteristics related to the embodiment are included in at least one embodiment of the present application. Therefore, “in this embodiment,” “in an embodiment of the present application,” or “as an optional implementation” appearing throughout the specification do not necessarily refer to the same embodiment. In addition, these specific features, structures, or characteristics may be combined in one or more embodiments in any suitable manner. Those skilled in the art should also be aware that the embodiments described in the specification are all optional embodiments, and the actions and modules involved are not necessarily required for the present application.

[0070] In the various embodiments of the present application, it should be understood that the size of the serial numbers of the above-mentioned processes does not necessarily mean the order of execution. The order of execution of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0071] The above description is merely a specific embodiment of the present application, but the scope of protection of the present application is not limited thereto. Any modifications or substitutions that can be easily conceived by a person skilled in the art within the technical scope disclosed in the present application should be included within the scope of protection of the present application. Therefore, the scope of protection of the present application should be based on the scope of protection of the claims.

Claims

1. A rechargeable serial port screen, characterized in that: Including serial port screen body, battery module and charging management circuit module; The serial port screen body is electrically connected to the battery module, and the charging management circuit module is electrically connected to the serial port screen body and the battery module respectively; The charging management circuit module includes a charging management chip and a charging prompt circuit. The power input end of the charging management chip is connected to the battery module, and the power output end of the charging management chip is connected to the serial port screen body. One end of the charging prompt circuit is connected between the power input end of the charging management chip and the battery module, and the other end of the charging prompt circuit is connected to the detection end of the charging management chip.

2. The rechargeable serial port screen according to claim 1, characterized in that: The charging management circuit module also includes a filter capacitor, one end of the filter capacitor is connected to the power output end of the charging management chip, and the other end of the filter capacitor is connected to the ground end of the charging management chip, and the ground end of the charging management chip is grounded.

3. The rechargeable serial port screen according to claim 1 or 2, characterized in that: The charging management circuit module further includes a temperature detection resistor, one end of which is connected to the battery temperature detection input end of the charging management chip, and the other end of which is grounded.

4. The rechargeable serial port screen according to claim 1 or 2, characterized in that: The charging management circuit module further includes a charging current detection resistor, one end of which is connected to the battery charging current detection input end of the charging management chip, and the other end of which is grounded.

5. The rechargeable serial port screen according to claim 1, characterized in that: The charging prompt circuit includes a light emitting device, one end of the light emitting device is connected to the power input end of the charging management chip, and one end of the light emitting device is connected to the charging completion indication end of the charging management chip.

6. The rechargeable serial port screen according to claim 5, characterized in that: The light emitter is an LED device.

7. The rechargeable serial port screen according to claim 6, characterized in that: The charging prompt circuit further includes a resistor, which is connected in series with the LED device.

8. The rechargeable serial port screen according to claim 5, characterized in that: The charging prompt circuit further includes a speaker, which is connected in series with the light emitter.

9. The rechargeable serial port screen according to claim 1, characterized in that: The battery module is a lithium battery module.

10. A portable display device, characterized in that: Including the rechargeable serial port screen according to any one of claims 1 to 9.

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