Power supply system for electronic payment terminal equipment

Abstract

The utility model relates to a power supply system for electronic payment terminal equipment. The power supply system comprises the electronic payment terminal equipment and a power supply accessory. The electronic payment terminal equipment comprises a safety module, a first button cell, a switch selection circuit and a first interface, the switch selection circuit comprises a first input end, a second input end and an output end, the safety module is electrically connected with the output end of the switch selection circuit, the first button cell is electrically connected with the second input end of the switch selection circuit, and the first interface is electrically connected with the second input end of the switch selection circuit. The first interface is electrically connected with the first input end of the switch selection circuit, so that the safety module selects the first button battery or the power supply accessory electrically connected with the first interface to supply power through the switch selection circuit. The power supply accessory comprises a second button cell and a second interface. And the switch selection circuit is further set as follows: when the second interface of the power supply accessory is electrically connected with the first interface of the electronic payment terminal equipment through the electric connecting wire, the safety module preferentially selects the second button battery of the power supply accessory to supply power to the electronic payment terminal equipment.

Description

Technical Field

[0001] The utility model relates to the field of electronic technology, in particular to a power supply system for electronic payment terminal equipment. Background Art

[0002] Electronic payment terminal equipment, especially electronic payment terminal equipment used for payment, such as POS machines, usually includes two batteries, one of which is a large-capacity rechargeable lithium battery for the whole system, and the other is a small-capacity non-rechargeable button battery specifically used only for the security module. In some cases, lithium batteries can also be used to power the security module first. For safety reasons, the button battery specifically used for the security module needs to be disassembled and replaced when the battery is low or exhausted. Disassembly will involve material replacement, assembly process, packaging process, etc. In particular, due to security issues, it will also lead to the software key re-injection process. If the device has already entered the market, it will also bring additional recall repair costs. The resulting replacement costs will not be ignored.

[0003] Portability is a major feature of electronic payment terminal devices, and small size is the key to making electronic payment terminal devices portable. Although the current process can produce smaller terminal devices, the battery capacity of small terminal devices is also smaller accordingly. However, for the security module of the electronic payment terminal device, even when it is turned off during storage, it still needs to be powered by a special button battery; this makes the storage time of most small electronic payment terminal devices short and cannot meet the corresponding storage requirements.

[0004] Considering the power consumption of the safety module during storage, in order to extend the working time of the safety module in the later stage (after sales), the general practice in the industry is to increase the power of button batteries, increase the power of lithium batteries, or charge lithium batteries regularly during storage to extend the storage time. However, due to the small size, the existing technical solutions cannot increase the power or number of internal button batteries too much (insufficient internal space), nor can they increase the capacity of internal lithium batteries too much (also due to insufficient internal space). In addition, the operation and management process of regularly charging lithium batteries during storage is both complicated and costly. Utility Model Content

[0005] In view of the defects of the above-mentioned prior art, the utility model provides a new technical solution for utilizing the existing idle interface of the electronic payment terminal device itself to externally expand the additional power supply of the electronic payment terminal device to meet the power consumption of the security module during storage.

[0006] Therefore, the utility model provides a power supply system for an electronic payment terminal device, characterized in that the power supply system comprises: an electronic payment terminal device and a power supply accessory;

[0007] The electronic payment terminal device comprises: a security module, a first button battery, a switch selection circuit and a first interface, wherein the switch selection circuit comprises a first input end, a second input end and an output end, wherein the security module is electrically connected to the output end of the switch selection circuit, the first button battery is electrically connected to the second input end of the switch selection circuit, and the first interface is electrically connected to the first input end of the switch selection circuit, so that the security module selects the first button battery or the power supply accessory electrically connected to the first interface to be powered by the switch selection circuit;

[0008] The power supply accessory comprises: a second button battery and a second interface, wherein the second interface is electrically connected to the second button battery, and the second interface is configured to be electrically connected to the first interface of the electronic payment terminal device in a matching manner;

[0009] Wherein, the switch selection circuit is further configured such that: when the second interface of the power supply accessory is electrically connected to the first interface of the electronic payment terminal device through an electrical connection line, the security module preferentially selects the second button battery of the power supply accessory to power it.

[0010] Through the above technical solution, the utility model pioneered the use of external accessories to power the security module of the electronic payment terminal device during storage. The security module is enabled to preferentially consume the power on the power supply accessories through a unique switch selection circuit design. In other words, the security module of the electronic payment terminal device preferentially consumes the power on the power supply accessories during storage in the warehouse or even during logistics transportation. After the product is delivered or unpacked normally, the power supply accessories are removed, and the electronic payment terminal device begins to consume the power of the button battery inside itself, thereby not affecting the normal service life of the device. Compared with the method of directly increasing the power and / or quantity of the built-in button battery and / or lithium battery inside the electronic payment terminal device, the utility model is more practical and flexible in that it sets and selects accessories according to the different needs of customers by means of external accessories. At the same time, such external accessories will not have any adverse effects on the size and appearance design of the electronic payment terminal device itself, and the product production standards are more unified and the production efficiency is also higher.

[0011] According to an embodiment of the present utility model, the switch selection circuit includes a MOS tube, and the switch selection circuit constructed by the MOS tube can select different power supply paths for the security module.

[0012] According to an embodiment of the present invention, the first interface is a Micro USB female interface, and the second interface is a Micro USB male interface.

[0013] Preferably, the ID pin of the Micro USB male connector is electrically connected to the positive electrode of the second button battery, the GND pin of the Micro USB male connector is electrically connected to the negative electrode of the second button battery, and the other pins of the Micro USB male connector are left floating; and the ID pin of the Micro USB female connector is electrically connected to the first input terminal of the switch selection circuit, the GND pin of the Micro USB female connector is electrically connected to the ground terminal of the electronic payment terminal device, and the other pins of the Micro USB female connector are left floating.

[0014] In fact, the standard design of the Micro USB "ID" pin is used to determine whether the device is in host mode or slave mode, and cannot be used for power supply. In the absence of the need to determine the master / slave mode, this pin can be considered "idle". Here, the utility model uses this idle pin signal to power the security module of the electronic payment terminal device. This non-standardized use method eliminates the need to set up a power supply interface for the power supply accessory to the electronic payment terminal device, thereby maximizing the benefits of existing equipment.

[0015] According to an embodiment of the present invention, the types of the first interface and the second interface are selected from the following group: USB C, Mini USB, IC card insertion interface, audio 3.5mm interface, SAM card insertion interface, exposed metal contacts, SIM card insertion interface, lithium battery socket interface. Thus, the power supply interface between the power supply accessory and the electronic payment terminal device can be reasonably set according to the existing interface actually configured by the electronic payment terminal device, so as to realize the reasonable use of the existing interface of the device. It can be understood that other interfaces known in the art can also be used for the first interface and the second interface of the present invention.

[0016] According to an embodiment of the utility model, the first interface is an existing interface of the electronic payment terminal device itself, and the electrical connection between the first interface and the second interface uses the idle pins of the existing interface. The existing interface of the device itself is used to power additional accessories, so that the appearance design of the electronic payment terminal device is not affected, and other additional unfavorable factors are not caused. At the same time, the use of the idle pins of the existing interface will not affect the original design function requirements of the interface.

[0017] According to an embodiment of the present invention, the electronic payment terminal device includes a POS device. BRIEF DESCRIPTION OF THE DRAWINGS

[0018] The present invention will be further described in detail below with reference to the accompanying drawings. It will be readily understood by those skilled in the art that these drawings are only for illustrative purposes and are not intended to limit the scope of protection of the present invention. The same reference numerals in the drawings represent the same or similar components. For illustrative purposes, these drawings are not drawn entirely to scale.

[0019] Figure 1 A schematic diagram of a power supply system for a POS machine according to a preferred embodiment of the utility model is shown. DETAILED DESCRIPTION

[0020] In order to make the purpose, technical solutions and advantages of the embodiments of the utility model clearer, the technical solutions in the embodiments of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model. Therefore, the following detailed description of the embodiments of the utility model provided in the drawings is not intended to limit the scope of the utility model for which protection is sought, but merely represents the selected embodiments of the utility model. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without making creative work are within the scope of protection of the utility model.

[0021] In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and cannot be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include one or more of the features. In the description of the present invention, the meaning of "plurality" is two or more, unless otherwise clearly and specifically defined.

[0022] The following takes the POS machine as an example of an electronic payment terminal device and its attached external power supply accessories to explain in detail the power supply system for the electronic payment terminal device according to the utility model. The power supply system is used to provide an external additional power supply to the security module (or security chip) in the POS machine during the warehousing or logistics of the POS machine product. The security module in the POS machine preferentially consumes the power on the power supply accessories. In other words, the security module preferentially consumes the power on the power supply accessories during warehousing and even logistics transportation. After the product is delivered or unpacked normally, the power supply accessories are removed. At this time, the security module in the POS machine begins to consume the power of its own internal button battery, thereby not affecting the normal service life of the POS machine.

[0023] like Figure 1 As shown, a power supply system for an electronic payment terminal device according to a preferred embodiment of the utility model includes a POS machine 1 and a power supply accessory 2.

[0024] The POS machine 1 includes: a security module 11, a first button battery 12, a switch selection circuit 13 and a first interface. In this embodiment, the first interface is specifically a Micro USB female connector 14. The switch selection circuit 13 includes a first input terminal 131, a second input terminal 132 and an output terminal 133, wherein the security module 11 is electrically connected to the output terminal 133 of the switch selection circuit, the first button battery 12 is electrically connected to the second input terminal 132 of the switch selection circuit, and the Micro USB female connector 14 is electrically connected to the first input terminal 131 of the switch selection circuit, so that the security module 11 selects the first button battery 12 or the power supply accessory 2 connected to the Micro USB female connector 14 to be powered by the switch selection circuit 13. The first button battery 12 built into the POS machine 1 is used to provide power for the security module 11. The Micro USB female connector 14 is used to match and electrically connect with the power supply accessory 2.

[0025] The power supply accessory 2 includes: a second button battery 21 and a second interface. In this embodiment, the second interface is specifically a Micro USB male connector 22. The Micro USB male connector 22 is electrically connected to the second button battery 21, and the Micro USB male connector 22 is configured to be electrically connected to the Micro USB female connector 14 of the POS machine 1 through a connecting line. Here, the second button battery 21 can be a combination of one or more button batteries.

[0026] The Micro USB interface includes 5 pin signal lines in standard mode, namely VCC, GND, D+, D-, and ID pin signal lines. Among them, the standard conventional use of the ID pin is for the OTG function (OTG is the abbreviation of On-The-Go, which is mainly used for the connection between different devices or mobile devices for data exchange) to determine whether the device is a host or a slave. However, the design of the POS machine only considers the situation of being a slave, so the ID pin is in an idle state. In this regard, the inventor of the utility model pioneered the use of the ID pin to transmit the button battery voltage of the power supply accessory 2 to the POS machine 1 end through the ID signal line. After the POS machine 1 receives the voltage on the ID pin signal line, it can use the button battery of the power supply accessory 2 to power the security module 11 through the switch selection circuit.

[0027] The specific connection configuration is: the positive pole of the second button battery 21 of the power supply accessory 2 is connected to the ID pin of the Micro USB male connector 22, the negative pole of the second button battery 21 is connected to the GND pin of the Micro USB male connector 22, and the other pins of the Micro USB male connector 22 are left floating; the ID pin of the Micro USB female connector 14 of the POS machine 1 is connected to the switch selection circuit 13 (electrically connected to the first input terminal 131 of the switch selection circuit), and the GND pin of the Micro USB female connector 14 is connected to the GND signal of the POS machine 1 system.

[0028] like Figure 1 As shown, the switch selection circuit 13 is also configured such that: when the Micro USB male connector 22 of the power supply accessory 2 is electrically connected to the Micro USB female connector 14 of the POS machine 1 through an electrical connection line, the security module 11 preferentially selects the second button battery 21 of the power supply accessory 2 to supply power to it. At this time, the security module 11 consumes the battery energy of the second button battery 21 of the power supply accessory 2 to preserve and save the battery energy of the first button battery 12 built into the POS machine 1.

[0029] Preferably, the switch selection circuit 13 is a switch selection circuit constructed by MOS tubes (not shown). Its function is set to select different power supply paths to supply power to the security module 11:

[0030] - When there is voltage on the ID pin signal line of the POS machine 1 (i.e. the power supply accessory 2 is connected to the POS machine 1), the MOS tube conducts the electrical connection from the ID pin to the VCC of the security module 11, and cuts off the power supply connection from the first button battery 12 of the POS machine 1 to the safety circuit 11, so that the battery power on the power supply accessory 2 supplies the power consumption of the security module 11 of the POS machine 1;

[0031] -When there is no voltage on the ID pin signal line of the POS machine 1 (i.e. the power supply accessory 2 is not connected to the POS machine 1), the MOS tube cuts off the electrical connection from the ID pin to the VCC of the safety circuit 11, and turns on the power supply connection from the first button battery 12 of the POS machine 1 itself to the safety circuit, thereby enabling the first button battery 12 of the POS machine 1 itself to power the security module 11.

[0032] Those skilled in the art will appreciate that the above preferred embodiment only shows a preferred implementation of the present invention. The electrical connection (including the connection interface) between the power supply accessory and the electronic payment terminal device can use the Micro USB (ID pin) interface, and can also be selected according to the actual interface configuration type of the electronic payment terminal device. In the embodiments not shown, other interfaces that can be used include but are not limited to the following:

[0033] 1. Other types of USB interfaces, such as USB C / mini USB, can achieve circuit connection through ID pins or other idle pins.

[0034] 2. IC card insertion interface. There are reserved idle pins on the IC card holder. The interface on the power supply accessory side is designed into the shape of an IC card using PCB or FPC, etc., so that the button battery voltage on the power supply accessory side can be input into the electronic payment terminal device through the IC card interface to power the security module.

[0035] 3. Audio 3.5mm interface. If the electronic payment terminal has an audio male or female connector, the power supply accessory can be set to the corresponding interface type, and the button battery voltage of the accessory can be input into the electronic payment terminal through the audio interface.

[0036] 4. Exposed metal contacts. If there are directly available metal contacts exposed on the shell surface of the electronic payment terminal device, they can be used for secondary development by customers, and the accessory end can be connected to the signal through the POGOPIN spring pin.

[0037] 5. SAM card interface. There are reserved idle pins on the SAM card holder, and the interface on the power supply accessory end is designed into the shape of a SAM card using PCB, so that the button battery voltage on the power supply accessory end can be input into the electronic payment terminal device end through the SAM card interface to power the security module.

[0038] 6. SIM card interface. There are reserved idle pins on the SIM card holder. The interface on the power supply accessory side is designed into the shape of a SIM card using PCB, so that the button battery voltage on the power supply accessory side can be input into the electronic payment terminal device through the SIM card interface to power the security module.

[0039] 7. Lithium battery interface. If the lithium battery interface socket is pluggable and the lithium battery is not connected to the battery compartment for safety reasons during packaging, the space in the battery compartment can be used to design additional pins of the safety module at the lithium battery socket interface, so that the external power supply accessories can input the voltage into the safety module through the pins of the lithium battery interface.

[0040] The accompanying drawings and the above description describe non-limiting specific embodiments of the utility model. In order to teach the principles of the utility model, some conventional aspects have been simplified or omitted. Those skilled in the art will understand that variations derived from these embodiments fall within the scope of the utility model. Those skilled in the art will understand that the above features can be combined in various ways to form multiple variations of the utility model. Thus, the utility model is not limited to the above specific embodiments, but only limited by the claims and their equivalents.

Claims

1. A power supply system for an electronic payment terminal device, characterized in that: The power supply system includes: electronic payment terminal equipment and power supply accessories; The electronic payment terminal device comprises: a security module, a first button battery, a switch selection circuit and a first interface, wherein the switch selection circuit comprises a first input end, a second input end and an output end, wherein the security module is electrically connected to the output end of the switch selection circuit, the first button battery is electrically connected to the second input end of the switch selection circuit, and the first interface is electrically connected to the first input end of the switch selection circuit, so that the security module selects the first button battery or the power supply accessory electrically connected to the first interface to be powered by the switch selection circuit; The power supply accessory comprises: a second button battery and a second interface, wherein the second interface is electrically connected to the second button battery, and the second interface is configured to be electrically connected to the first interface of the electronic payment terminal device in a matching manner; Wherein, the switch selection circuit is further configured such that: when the second interface of the power supply accessory is electrically connected to the first interface of the electronic payment terminal device through an electrical connection line, the security module preferentially selects the second button battery of the power supply accessory to power it.

2. The power supply system according to claim 1, characterized in that: The switch selection circuit includes a MOS tube.

3. The power supply system according to claim 1 or 2, characterized in that: The first interface is a Micro USB female interface, and the second interface is a Micro USB male interface.

4. The power supply system according to claim 3, characterized in that: The ID pin of the Micro USB male connector is electrically connected to the positive electrode of the second button battery, the GND pin of the Micro USB male connector is electrically connected to the negative electrode of the second button battery, and the other pins of the Micro USB male connector are suspended; and the ID pin of the Micro USB female connector is electrically connected to the first input end of the switch selection circuit, the GND pin of the Micro USB female connector is electrically connected to the ground end of the electronic payment terminal device, and the other pins of the Micro USB female connector are suspended.

5. The power supply system according to claim 1 or 2, characterized in that: The types of the first interface and the second interface are selected from the following group: USB C, Mini USB, IC card insertion interface, audio 3.5mm interface, SAM card insertion interface, exposed metal contacts, SIM card insertion interface, and lithium battery socket interface.

6. The power supply system according to claim 1 or 2, characterized in that: The first interface is an existing interface of the electronic payment terminal device itself, and the electrical connection between the first interface and the second interface uses an idle pin of the existing interface.

7. The power supply system according to claim 1 or 2, characterized in that: The electronic payment terminal device includes a POS device.

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