Long-endurance POS terminal device

Abstract

The utility model relates to a long-endurance POS terminal device, which comprises a button cell, a rechargeable cell, a USB external power supply, an R5 resistor and a safety chip, and is characterized in that the rechargeable cell is connected with the USB external power in parallel, the output of the rechargeable cell is provided with a first power supply circuit, the output of the button cell is provided with a second power supply circuit, the first power supply circuit is connected with the second power supply circuit in parallel, and the output of the button cell is provided with a third power supply circuit; the three USB external power supplies including the button battery, the rechargeable battery and the USB external power supply are arranged, triple continuous power supply is carried out on the electric field of the POS terminal device, the endurance time of the device is greatly prolonged, the USB external power supply, the rechargeable battery and the button battery are sequentially and preferentially used, the safety of the POS terminal device is improved, and the service life of the POS terminal device is prolonged. And the power supply domain of the used battery is prolonged, so that the service time of the button battery is longer.

Description

Technical Field

[0001] This application relates to the field of electronic payment technology, and in particular to a POS terminal device with long battery life. Background Technology

[0002] POS (Point of Sales) is a multi-functional terminal installed at merchant locations and acceptance points that accept credit cards. Connected to a computer network, it enables automatic electronic fund transfers. It supports functions such as purchases, pre-authorization, balance inquiries, and transfers, and is secure, fast, and reliable. In large transactions, basic business intelligence is often difficult to obtain; implementing a POS system primarily addresses information management blind spots in the retail industry. It is also a crucial component of chain store management information systems.

[0003] For the USB external power supply of POS terminals, the commonly used power source is the 2032 button cell battery, with a rated voltage of 3V and a capacity of approximately 200mAh. The power consumption of the USB external power supply for common POS terminal chips is in the 10uA range, and the theoretical standby time of a button cell battery is about 2.3 years. Considering the lifespan of a POS terminal, 2.3 years is insufficient to meet its usage requirements. The battery may eventually run out of power, requiring the terminal to be returned to the manufacturer for repair, negatively impacting POS terminal quality, after-sales costs, and customer experience. Therefore, how to increase the battery life of the USB external power supply for POS terminals has become a pressing issue for those skilled in the art. Summary of the Invention

[0004] In view of this, this application proposes a POS terminal device with long battery life.

[0005] According to one aspect of this application, a POS terminal device with long battery life is provided, comprising: a button battery, a rechargeable battery, a USB external power supply, an R5 resistor, and a security chip;

[0006] The rechargeable battery is connected in parallel with the USB external power supply, and has a first power supply circuit output.

[0007] The button battery outputs a second power supply circuit;

[0008] The first power supply circuit is connected in parallel with the second power supply circuit, and a third power supply circuit is output. The third power supply circuit is electrically connected to the resistor R5 and the safety chip to output power.

[0009] In one possible implementation, the power supply voltage of the USB external power supply is greater than the power supply voltage of the rechargeable battery;

[0010] The rechargeable battery's external power supply via USB is greater than the power supply voltage of the button cell battery.

[0011] In one possible implementation, the output of the first power supply circuit is electrically connected to a step-down chip.

[0012] In one possible implementation, it also includes: a first diode, a second diode, a third diode, and a fourth diode;

[0013] The first diode is electrically connected to the output terminal of the button cell;

[0014] The second diode is electrically connected to the output terminal of the first power supply circuit;

[0015] The third diode is electrically connected to the output terminal of the rechargeable battery;

[0016] The fourth diode is electrically connected to the output terminal of the USB external power supply.

[0017] In one possible implementation, the first diode, the second diode, the third diode, and the fourth diode are all Schottky diodes RB521S.

[0018] In one possible implementation, the security chip is the MH1902.

[0019] In one possible implementation, the step-down chip is ME6209.

[0020] One possible implementation also includes: resistor R4;

[0021] The resistor R4 is connected in series between the button cell and the first diode.

[0022] One possible implementation also includes: resistor R6;

[0023] The resistor R6 is connected in series between the rechargeable battery and the second diode.

[0024] The beneficial effects of the long-lasting POS terminal device according to the embodiments of this application are as follows: By setting up three external power supplies—a button battery, a rechargeable battery, and a USB external power supply—the POS terminal device is provided with triple power, thereby greatly improving the device's battery life. The button battery is small and easy to install, providing strong support for the normal operation of the POS terminal device. The rechargeable battery is connected in parallel with the USB external power supply, so even when the rechargeable battery is depleted, the USB external power supply can still power the POS terminal device, ensuring normal operation. Specifically, the output terminals of the rechargeable battery and the USB external power supply are connected in parallel. Since the supply voltage of the USB external power supply is greater than that of the rechargeable battery, the USB external power supply is given priority. Furthermore, the supply voltage of the rechargeable battery and the USB external power supply in parallel is greater than that of the button battery, so either the rechargeable battery or the USB external power supply is given priority to power the battery power domain. When the USB external power supply and the rechargeable battery lose power, the button battery is then used to power the battery power domain, maximizing the button battery's lifespan.

[0025] Other features and aspects of this application will become clear from the following detailed description of exemplary embodiments with reference to the accompanying drawings. Attached Figure Description

[0026] The accompanying drawings, which are included in and form part of this specification, illustrate exemplary embodiments, features, and aspects of this application together with the specification and serve to explain the principles of this application.

[0027] Figure 1 A circuit connection diagram of a button battery according to an embodiment of this application is shown;

[0028] Figure 2 This diagram illustrates the circuit connection between the USB external power supply and the rechargeable battery according to an embodiment of this application.

[0029] Figure 3 A schematic diagram of a security chip according to an embodiment of this application is shown. Detailed Implementation

[0030] Various exemplary embodiments, features, and aspects of this application will now be described in detail with reference to the accompanying drawings. The same reference numerals in the drawings denote elements that have the same or similar functions. Although various aspects of the embodiments are shown in the drawings, they are not necessarily drawn to scale unless specifically indicated otherwise.

[0031] It should be understood that the terms "center," "longitudinal," "lateral," "length," "width," "upper," "lower," "front," "rear," "left," "right," "vertical," "horizontal," "top," "bottom," "inner," "outer," "clockwise," "counterclockwise," "axial," "radial," and "circumferential" indicate the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings. They are used only for the convenience of describing the present invention or simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation. Therefore, they should not be construed as limitations on the present invention.

[0032] Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of this invention, "a plurality of" means two or more, unless otherwise explicitly specified.

[0033] The term “exemplary” as used herein means “serving as an example, embodiment, or illustration.” Any embodiment illustrated herein as “exemplary” is not necessarily to be construed as superior to or better than other embodiments.

[0034] Furthermore, to better illustrate this application, numerous specific details are provided in the following detailed embodiments. Those skilled in the art should understand that this application can be implemented without certain specific details. In some instances, methods, means, components, and circuits well-known to those skilled in the art have not been described in detail in order to highlight the main points of this application.

[0035] like Figure 1 , Figure 2 and Figure 3 As shown, the long-battery-life POS terminal device of this application embodiment includes: a button battery 200, a rechargeable battery 300, a USB external power supply 400, a resistor R5 610, and a security chip 100. The rechargeable battery 300 and the USB external power supply 400 are connected in parallel and have a first power supply circuit output. The button battery 200 outputs a second power supply circuit. The first power supply circuit and the second power supply circuit are connected in parallel and have a third power supply circuit output. The third power supply circuit is electrically connected to the resistor R5 610 and the security chip 100 to output power.

[0036] In this embodiment, by setting up three USB external power supplies 400—a button battery 200, a rechargeable battery 300, and a USB external power supply 400—the POS terminal device is provided with triple power supply, which greatly improves the device's battery life. Furthermore, the button battery 200 is small in size and easy to install, providing strong support for the normal operation of the POS terminal device. The rechargeable battery 300 and the USB external power supplies 400 are connected in parallel, with the USB external power supply 400 providing priority power to the battery's USB external power domain, followed by the rechargeable battery 300, and finally the button battery 200 continuously supplying power to the battery's USB external power domain, ensuring the normal operation of the device. Specifically, the output terminals of the rechargeable battery 300 and the USB external power supply 400 are connected in parallel. Since the supply voltage of the USB external power supply 400 is greater than that of the rechargeable battery 300, the USB external power supply 400 is given priority to supply power to the battery power domain. Furthermore, the supply voltage of the rechargeable battery 300 and the USB external power supply 400 connected in parallel is greater than that of the button battery 200. Therefore, either the rechargeable battery 300 or the USB external power supply 400 is given priority to continuously supply power to the battery power domain. When the USB external power supply 400 and the rechargeable battery 300 lose power, the button battery 200 is then used to continuously supply power to the battery power domain, thus maximizing the lifespan of the button battery 200.

[0037] In one specific embodiment, the power supply voltage of the USB external power supply 400 is greater than the power supply voltage of the rechargeable battery 300, and the power supply voltage of the USB external power supply 400 from the rechargeable battery 300 is greater than the power supply voltage of the button battery 200. Specifically, the button battery 200 is a 2032 button battery with a rated voltage of 3V and a capacity of 220mAh; the rechargeable battery 300 has a nominal voltage of 3.7V and a capacity of 2200mAh; and the USB external power supply 400 has a power supply voltage of 5V and a power supply current of 1A.

[0038] In one specific embodiment, the output terminal of the first power supply circuit is electrically connected to a step-down chip 700, which can easily adjust the voltage of the first power supply circuit to the required voltage value to meet different usage requirements.

[0039] In one specific embodiment, the circuit further includes: a first diode 510, a second diode 520, a third diode 530, and a fourth diode. The first diode 510 is electrically connected to the output terminal of the button battery 200, the second diode 520 is electrically connected to the output terminal of the first power supply circuit, the third diode 530 is electrically connected to the output terminal of the rechargeable battery 300, and the fourth diode 540 is electrically connected to the output terminal of the USB external power supply 400. This allows for rectification of the output currents of the button battery 200, the rechargeable battery 300, and the USB external power supply 400, ensuring stable circuit operation.

[0040] Furthermore, in this specific embodiment, the first diode 510, the second diode 520, the third diode 530, and the fourth diode 540 are all Schottky diodes RB521S. Schottky diodes RB521S have the advantages of extremely short reverse recovery time, low forward voltage drop, low forward conduction loss, and good high temperature resistance, which ensures the reliable operation of the circuit.

[0041] In one specific embodiment, the security chip 100 is MH1902. MH1902 supports cryptographic algorithms such as RSA, DES, 3DES, SHA-1, SHA-256, and random number generation, and has excellent performance, ensuring the security of payment transactions.

[0042] In one specific embodiment, the step-down chip 700 is an ME6209. The ME6209 has a wide input voltage range and a high switching frequency, which can drive larger loads and further improve the reliability of power supply.

[0043] In one specific embodiment, it further includes: resistor R4 620. Resistor R4 620 is connected in series between button battery 200 and first diode 510, which can limit the output current of button battery 200 and protect the normal operation of the circuit.

[0044] In one specific embodiment, it further includes: resistor R6 630, which is connected in series between rechargeable battery 300 and second diode 520, and can limit the output current of rechargeable battery 300 to ensure stable operation of circuit.

[0045] The various embodiments of this application have been described above. These descriptions are exemplary and not exhaustive, nor are they limited to the disclosed embodiments. Many modifications and variations will be apparent to those skilled in the art without departing from the scope and spirit of the described embodiments. The terminology used herein is chosen to best explain the principles, practical application, or improvement of the technology in the market, or to enable others skilled in the art to understand the embodiments disclosed herein.

Claims

1. A POS terminal device with long battery life, characterized in that, include: Button battery, rechargeable battery, USB external power supply, R5 resistor and security chip; The rechargeable battery is connected in parallel with the USB external power supply, and has a first power supply circuit output. The button battery outputs a second power supply circuit; The first power supply circuit is connected in parallel with the second power supply circuit, and a third power supply circuit is output. The third power supply circuit is electrically connected to the resistor R5 and the safety chip to output power.

2. The long-battery-life POS terminal device according to claim 1, characterized in that, The power supply voltage of the USB external power supply is greater than the power supply voltage of the rechargeable battery; The rechargeable battery's external power supply via USB is greater than the power supply voltage of the button cell battery.

3. The long-battery-life POS terminal device according to claim 2, characterized in that, The output terminal of the first power supply circuit is electrically connected to a step-down chip.

4. The long-battery-life POS terminal device according to claim 3, characterized in that, Also includes: First diode, second diode, third diode, and fourth diode; The first diode is electrically connected to the output terminal of the button cell; The second diode is electrically connected to the output terminal of the first power supply circuit; The third diode is electrically connected to the output terminal of the rechargeable battery; The fourth diode is electrically connected to the output terminal of the USB external power supply.

5. The long-battery-life POS terminal device according to claim 4, characterized in that, The first diode, the second diode, the third diode, and the fourth diode are all Schottky diodes RB521S.

6. The long-battery-life POS terminal device according to claim 4, characterized in that, The security chip is MH1902.

7. The long-battery-life POS terminal device according to claim 4, characterized in that, The step-down chip is ME6209.

8. The long-battery-life POS terminal device according to claim 4, characterized in that, Also includes: R4 resistor; The resistor R4 is connected in series between the button cell and the first diode.

9. The long-battery-life POS terminal device according to claim 4, characterized in that, Also includes: R6 resistor; The resistor R6 is connected in series between the rechargeable battery and the second diode.

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