Integrated buzzing payment terminal device

Abstract

The utility model relates to an integrated buzzing payment terminal device which comprises a payment terminal, a buzzing piece and a buzzing circuit unit, a resonance cavity is formed in a shell of the payment terminal, the resonance cavity is of a cavity structure and used for echo resonance, the buzzing piece is pasted in the resonance cavity, the buzzing circuit unit is arranged in the payment terminal, and the buzzing piece is pasted in the buzzing circuit unit. The positive electrode and the negative electrode are electrically connected with the buzzing piece to form a communicated buzzing electric loop, the buzzing electric loop generates an alternating electric field to drive the buzzing piece to vibrate and produce sound, and the sound is amplified by generating resonance in the resonance cavity, so that the function of a buzzing box can be replaced, and the cylindrical resonance cavity is drawn by utilizing the cover plate bracket of the POS terminal, so that the POS terminal can be used for buzzing. According to the working principle of the resonance box, tiny sound generated by the piezoelectric buzzing piece under an alternating electric field resonates in the cavity, and amplified sound is obtained.

Description

Technical Field

[0001] The present application relates to the technical field of payment terminals, and in particular to an integrated buzzing payment terminal device. Background Art

[0002] After more than a decade of rapid growth in the POS payment industry, the number of POS manufacturers has increased, and terminal types are constantly being updated and upgraded. Consequently, terminal manufacturers are increasingly demanding on product cost. Keeping the terminal's bill of materials (BOM) cost as low as possible is a common goal for all POS terminal manufacturers. Electronic products, including POS payment terminals, are now trending towards smaller and flatter designs. Using a smaller buzzer significantly increases the cost of POS payment terminals, which are extremely sensitive to BOM costs. Traditional payment terminal buzzers are often installed as separate components, which not only takes up additional space but also incurs relatively high costs. Utility Model Content

[0003] In view of this, the present application proposes an integrated buzzing payment terminal device.

[0004] According to one aspect of the present application, an integrated buzzer payment terminal device is provided, comprising: a payment terminal, a buzzer piece, and a buzzer circuit unit;

[0005] A resonance cavity is provided inside the housing of the payment terminal;

[0006] The buzzer is attached to the inside of the resonance cavity;

[0007] The buzzer circuit unit is arranged in the payment terminal, and the positive and negative electrodes are electrically connected to the buzzer plate to form a connected buzzer circuit. The buzzer circuit generates an alternating electric field to drive the buzzer plate to vibrate.

[0008] In one possible implementation, the buzzer is made of piezoelectric material.

[0009] In one possible implementation, the device further includes: a main control chip;

[0010] The model of the main control chip is MH1902-QFN68;

[0011] Pin 19 of the main control chip is electrically connected to the buzzer circuit unit to control the connection and disconnection of the buzzer circuit unit.

[0012] In one possible implementation, the buzzer circuit unit includes: a resistor R6, a resistor R7, and a transistor;

[0013] The R6 resistor is electrically connected to the 19th pin of the main control chip and the base of the transistor respectively;

[0014] The R7 resistor is electrically connected to the R6 resistor and the collector of the transistor respectively;

[0015] The first test point of the buzzer is electrically connected to the emitter of the transistor, and the second test point is suitable for electrically connecting to a power supply.

[0016] In one possible implementation, the device further includes: a resistor R3, a resistor R4, and a capacitor C2;

[0017] The R3 resistor is connected in series between the power supply and the second test point of the buzzer;

[0018] The resistor R4 is connected in parallel with the resistor formed by the buzzer.

[0019] The power supply is electrically connected to the capacitor C2.

[0020] In one possible implementation, the resonance cavity is a hollow columnar structure.

[0021] In a possible implementation, the buzzer is a plate-shaped structure with a circular cross-section, and the buzzer matches the resonance cavity.

[0022] In one possible implementation, a first contact and a second contact extend toward the buzzer from a side of the resonance cavity that is not in contact with the buzzer, wherein the first contact abuts against an edge of the buzzer, and the second contact abuts against a center of the buzzer.

[0023] The first contact is electrically connected to the emitter of the transistor;

[0024] The second contact is electrically connected to the power source.

[0025] In one possible implementation, the diameter of the buzzer is 15 mm.

[0026] In one possible implementation, an opening is provided at the bottom of the resonance cavity of the shell.

[0027] The beneficial effects of the integrated buzzer payment terminal device of the embodiment of the present application: the main control chip adopts MH1902-QFN68, which is a security chip with a built-in security encryption module. By forming a buzzer electrical circuit with a buzzer plate, the buzzer plate is a key component of this sound-generating device. Its working principle is based on the piezoelectric effect. Under the action of the alternating electric field, the piezoelectric material produces deformation, causing the metal diaphragm to vibrate and make sound. The buzzer plate is connected between the power supply and the transistor as a resonant device. Combined with the product characteristics and flattening requirements of the POS payment terminal, the cover bracket of the POS terminal is used to outline a cylindrical resonance cavity, which is used as the resonance box of the buzzer. Its working principle is to resonate the tiny sound emitted by the piezoelectric buzzer plate under the alternating electric field in the cavity to obtain an amplified sound. In this way, the buzzer and the payment terminal can be designed as one, and the cost can be greatly reduced.

[0028] Further features and aspects of the present application will become apparent from the following detailed description of exemplary embodiments with reference to the attached drawings. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] The accompanying drawings, which are incorporated in and constitute a part of the specification, illustrate exemplary embodiments, features, and aspects of the application and, together with the description, serve to explain the principles of the application.

[0030] Figure 1 A schematic diagram showing the internal structure of an integrated buzzing payment terminal device according to an embodiment of the present application;

[0031] Figure 2 A partially enlarged schematic diagram of an integrated buzzing payment terminal device according to an embodiment of the present application is shown;

[0032] Figure 3 A schematic diagram showing the main control chip of the integrated buzzing payment terminal device according to an embodiment of the present application is shown;

[0033] Figure 4 A schematic diagram of a buzzer circuit of an integrated buzzer payment terminal device according to an embodiment of the present application is shown. DETAILED DESCRIPTION

[0034] Various exemplary embodiments, features, and aspects of the present application will be described in detail below with reference to the accompanying drawings. The same reference numerals in the accompanying drawings represent elements with the same or similar functions. Although various aspects of the embodiments are shown in the accompanying drawings, the drawings are not necessarily drawn to scale unless otherwise indicated.

[0035] Among them, it needs to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are 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, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation to the present invention.

[0036] 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 the technical features being referred to. Thus, a feature specified as "first" or "second" may explicitly or implicitly include one or more of such features. In the description of this utility model, "plurality" means two or more, unless otherwise specifically defined.

[0037] The word “exemplary” is used exclusively herein to mean “serving as an example, example, or illustration.” Any embodiment described herein as “exemplary” is not necessarily to be construed as preferred or advantageous over other embodiments.

[0038] In addition, numerous specific details are provided in the detailed description below to better illustrate the present application. Those skilled in the art will appreciate that the present application can be practiced without certain specific details. In some instances, methods, means, components, and circuits well known to those skilled in the art are not described in detail in order to highlight the main purpose of the present application.

[0039] like Figure 1 and Figure 2 As shown, the integrated buzzer payment terminal device of the embodiment of the present application includes: a payment terminal 100, a buzzer piece 200, and a buzzer circuit unit. A resonance cavity is provided inside the shell of the payment terminal 100. The resonance cavity is a cavity structure for echo resonance. The buzzer piece 200 is pasted inside the resonance cavity. The buzzer circuit unit is arranged in the payment terminal 100. The positive and negative poles are electrically connected to the buzzer piece 200 to form a connected buzzer electric circuit. The buzzer electric circuit generates an alternating electric field to drive the buzzer piece 200 to vibrate and make sound, and by generating resonance inside the resonance cavity, the sound is amplified, thereby replacing the function of the buzzer box.

[0040] In this embodiment, the main control chip, MH1902-QFN68, is a security chip with a built-in security encryption module. It forms a buzzer circuit with the buzzer 200, a key component of the sound-generating device. Its operating principle is based on the piezoelectric effect. Under the action of an alternating electric field, the piezoelectric material deforms, causing the metal diaphragm to vibrate and produce sound. The buzzer 200 acts as a resonant device, connected between the power supply and transistor 430. In line with the product characteristics and flattening requirements of the POS payment terminal 100, the POS terminal's cover bracket is used to outline a cylindrical resonant cavity, which serves as the buzzer's resonance box. The buzzer's operating principle is that the tiny sound emitted by the piezoelectric buzzer 200 under the alternating electric field resonates within the cavity, amplifying the sound.

[0041] Among them, this sound-generating device controls the transistor 430 to periodically turn on and off through PWM to drive the piezoelectric buzzer 200 to resonate and sound. Through the two contacts of the buzzer 200, the R4 resistor 470 is connected in parallel at both ends of the buzzer 200, serving as an impedance matcher for the buzzer 200. The resistance value of R4 is 510 ohms, and the power supply voltage of the buzzer 200 is 5V.

[0042] Among them, the payment terminal 100 of the present application is a product of a POS payment terminal 100, which is an existing feasible technology and will not be described in detail here.

[0043] In a specific embodiment, the buzzer 200 is made of piezoelectric material. Under the action of an alternating electric field, the piezoelectric material deforms, causing the metal diaphragm to vibrate and produce sound.

[0044] In a specific embodiment, the main control chip model is MH1902-QFN68, and its pin 19 is electrically connected to the buzzer circuit unit for controlling the connection and disconnection of the buzzer circuit unit. The main control chip can start or stop the sound output of the buzzer as needed.

[0045] In this embodiment, the buzzer circuit unit is composed of an R6 resistor 410, an R7 resistor 420, and a transistor 430. The R6 resistor 410 is connected to pin 19 of the main control chip and the base of the transistor 430. The main control chip controls the conduction and cutoff of the transistor 430. The R7 resistor 420 is connected between the collector of the transistor 430 and the R6 resistor 410, providing current limiting and protection. The first test point 450 of the buzzer 200 is connected to the emitter of the transistor 430, and the second test point 440 is connected to the power supply. When the transistor 430 is turned on, current flows through the buzzer 200 to produce sound.

[0046] In this embodiment, to further optimize circuit performance, resistor R3 460, resistor R4 470, and capacitor C2 are added. Resistor R3 460 is connected in series between the power supply and the second test point 440 of the buzzer 200 to limit the current. Resistor R4 470 is connected in parallel with the buzzer 200 to adjust the impedance matching of the buzzer 200. Capacitor C2 is connected to the power supply to filter or stabilize the power supply voltage.

[0047] In a specific embodiment, the resonance cavity is designed as a hollow columnar structure to enhance the sound effect emitted by the buzzer 200, making the sound clearer and louder.

[0048] In a specific embodiment, the buzzer 200 is a plate-like structure with a circular cross-section, which matches the resonance cavity to ensure that the sound resonates best in the cavity. Its diameter is set to 15 mm, which is a common size and can produce a moderate volume.

[0049] In this embodiment, a first contact 310 and a second contact 320 are provided inside the resonance cavity, which respectively abut the edge and center position of the buzzer 200 to ensure good contact between the buzzer 200 and the circuit. At the same time, the first contact 310 is connected to the emitter of the transistor 430, and the second contact 320 is connected to the power supply, so that the current can pass through the buzzer 200 smoothly.

[0050] In a specific embodiment, an opening is provided at the bottom of the resonance cavity of the shell, which helps to spread and diffuse the sound so that the buzzing sound can be clearly heard outside.

[0051] The embodiments of the present application have been described above. The above description is illustrative and not exhaustive, and is not 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 selected to best explain the principles of the embodiments, their practical applications, or improvements to the technology in the market, or to enable other persons skilled in the art to understand the embodiments disclosed herein.

Claims

1. An integrated buzzing payment terminal device, characterized in that: include: Payment terminal, buzzer, buzzer circuit unit; A resonance cavity is provided inside the housing of the payment terminal; The buzzer is attached to the inside of the resonance cavity; The buzzer circuit unit is arranged in the payment terminal, and the positive and negative electrodes are electrically connected to the buzzer plate to form a connected buzzer circuit. The buzzer circuit generates an alternating electric field to drive the buzzer plate to vibrate.

2. The integrated buzzer payment terminal device according to claim 1, characterized in that: The buzzer is made of piezoelectric material.

3. The integrated buzzer payment terminal device according to claim 2, characterized in that: Also includes: Main control chip; The model of the main control chip is MH1902-QFN68; Pin 19 of the main control chip is electrically connected to the buzzer circuit unit to control the connection and disconnection of the buzzer circuit unit.

4. The integrated buzzer payment terminal device according to claim 3, characterized in that: The buzzer circuit unit includes: a resistor R6, a resistor R7 and a transistor; The R6 resistor is electrically connected to the 19th pin of the main control chip and the base of the transistor respectively; The R7 resistor is electrically connected to the R6 resistor and the collector of the transistor respectively; The first test point of the buzzer is electrically connected to the emitter of the transistor, and the second test point is suitable for electrically connecting to a power supply.

5. The integrated buzzer payment terminal device according to claim 4, characterized in that: Also includes: R3 resistor, R4 resistor and C2 capacitor; The R3 resistor is connected in series between the power supply and the second test point of the buzzer; The R4 resistor is connected in parallel with the resistor formed by the buzzer; The power supply is electrically connected to the capacitor C2.

6. The integrated buzzer payment terminal device according to claim 4, characterized in that: The resonance cavity is a hollow columnar structure.

7. The integrated buzzer payment terminal device according to claim 6, characterized in that: The buzzer is a plate-shaped structure with a circular cross section, and the buzzer matches the resonance cavity.

8. The integrated buzzer payment terminal device according to claim 7, characterized in that: A first contact and a second contact are extended from a side of the resonance cavity that is not in contact with the buzzer plate toward the buzzer plate, wherein the first contact abuts against an edge of the buzzer plate, and the second contact abuts against a center of the buzzer plate; and The first contact is electrically connected to the emitter of the transistor; The second contact is electrically connected to the power source.

9. The integrated buzzer payment terminal device according to claim 1, characterized in that: The diameter of the buzzer is 15 mm.

10. The integrated buzzer payment terminal device according to claim 1, characterized in that: The bottom of the resonance cavity of the shell is provided with an opening.

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