CN216649286U

CN216649286U - Circuit board of sharing treasured rack that charges

Info

Publication number: CN216649286U
Application number: CN202220139831.7U
Authority: CN
Inventors: 姚娇尧; 韩向雨
Original assignee: Shenzhen Amis Electronic Technology Co ltd
Current assignee: Shenzhen Amis Electronic Technology Co ltd
Priority date: 2022-01-19
Filing date: 2022-01-19
Publication date: 2022-05-31
Anticipated expiration: 2032-01-19

Abstract

The utility model relates to the technical field of shared charging cabinet equipment, and discloses a circuit board of a shared charging treasure cabinet, which aims to solve the technical problems of overhigh cost and complex wiring caused by excessive communication lines in the existing product. The line communication is selected by selecting the gating switch in the middle, so that the direct connection between a plurality of charging interfaces and the control module is avoided, the requirement on the control module is reduced, the cost is saved, the wiring of the circuit board is optimized, and the wiring pressure of the circuit board is reduced.

Description

Circuit board of sharing precious rack that charges

Technical Field

The utility model relates to the technical field of shared charging cabinets, in particular to a circuit board of a shared charging treasure cabinet.

Background

Along with the wide and quick popularization of mobile terminal at the crowd to and mobile terminal power consumption constantly increase, the demand that the user need charge at any time in various occasions, the user is not carrying under the circumstances that the treasured that charges, rents the sharing treasured that charges and charges to mobile terminal like the cell-phone.

The shared precious rack that charges is equipped with communication circuit with the treasured that charges to charge and discern the authentication and detect, the shared precious rack that charges is equipped with a plurality of machine storehouses that hold the treasured that charges, because the precious rack that charges of shared needs every to charge the treasured and all communicates, need set up multiunit communication circuit, this communication interface that has just caused control module is enough, control module's cost has been increased, circuit board circuit is also comparatively complicated, the wiring of giving the circuit board has brought pressure.

SUMMERY OF THE UTILITY MODEL

The utility model aims to provide a circuit board of a shared charger cabinet, which aims to solve the technical problems of high cost and complex wiring caused by excessive communication lines in the existing product.

In order to achieve the above purpose, the specific technical scheme of the circuit board sharing the charger baby cabinet of the utility model is as follows:

the utility model provides a circuit board of sharing treasured rack that charges, includes power module, control module, is used for communication module of control module and external communication, a plurality of interfaces that charge that are used for charging the treasured and be used for controlling the current-limiting module of the interface output current that charges, charge and be equipped with communication circuit between interface and the control module, still be equipped with the gating switch between interface and the control module that charges for the alternative selects to charge interface and control module communication, the gating switch is connected with control module, a plurality of interface that charges respectively. The charging control system has the advantages that the gating switch is connected with the plurality of charging interfaces, the gating switch is connected with the control module through the pair of lines, the gating switch selects one line to communicate in the middle, the plurality of charging interfaces are prevented from being directly connected with the control module, the performance requirement on the control module is lowered, the cost is saved, meanwhile, the wiring of the circuit board is optimized, and the wiring pressure of the circuit board is reduced.

Furthermore, the gating switch comprises a first gating switch used for receiving data by the control module and a second gating switch used for sending data by the control module, so as to form a bidirectional communication circuit, and the communication circuit is a serial communication circuit.

Further, the power supply module comprises a first power supply module for outputting a first voltage and a second power supply module for outputting a second voltage, wherein the first voltage is greater than the second voltage; the first voltage is used for supplying power to the current limiting module and is output to the charging interface through the current limiting module; the second voltage is used for supplying power to the control module and the gating switch.

Further, the communication module comprises an RS485 communication module and/or a USB communication module, the first voltage is used for supplying power to the USB communication module, and the second voltage is used for supplying power to the RS485 communication module.

Furthermore, the communication module further comprises a 4G communication module and a third power module for outputting a third voltage, the second voltage and the third voltage are used for supplying power to the 4G communication module, the 4G communication module is connected with an eSIM module, and the eSIM module occupies a small volume relative to the SIM card holder.

Furthermore, the circuit board is also provided with a voice module for outputting prompt information, and the voice module is connected with the control module.

Furthermore, the circuit board is also provided with a protective gate circuit, the protective gate circuit comprises a plurality of groups of control buttons and a driving circuit, the control buttons are connected with the control module through LOCK circuits, the controlled end of the driving circuit is connected with the control module, and the driving circuit controls the motor to open and close the bin gate to form a protective effect.

The circuit board of the shared charger cabinet provided by the utility model has the following advantages that:

the charging control system has the advantages that the gating switch is connected with the plurality of charging interfaces, the gating switch is connected with the control module through the pair of lines, the gating switch selects one line to communicate in the middle, the plurality of charging interfaces are prevented from being directly connected with the control module, the performance requirement on the control module is lowered, the cost is saved, meanwhile, the wiring of the circuit board is optimized, and the wiring pressure of the circuit board is reduced.

Drawings

Fig. 1 is a functional block diagram of a shared power bank cabinet according to the present invention;

FIG. 2 is a schematic diagram of a selector switch circuit according to the present invention;

FIG. 3 is a circuit diagram of a current limiting module according to the present invention;

FIG. 4 is a block diagram of a power supply system provided by the present invention;

FIG. 5 is a circuit diagram of a voice module according to the present invention;

FIG. 6 is a block diagram of a protection gate circuit provided by the present invention;

fig. 7 is a circuit diagram of the protection gate according to the present invention.

In the figure: u3, a first gating switch; u4, a second gating switch; q9, a first power device; q10, a second power device; u26, a voice module; u1, a current limiting module; j12, charging interface.

Detailed Description

In order to make the objects, technical solutions and advantages of the present invention more apparent, the present invention is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the utility model and are not intended to limit the utility model.

Referring to fig. 1 to 7, the circuit board of the shared charger cabinet provided by the utility model comprises a power module, a control module, a communication module for communication between the control module and the outside, a plurality of charging interfaces J12 for charging the charger and a current limiting module U1 for controlling the output current of the charging interface J12, wherein a communication circuit is arranged between the charging interface J12 and the control module, a gating switch is further arranged between the charging interface J12 and the control module and used for selecting the charging interface J12 to communicate with the control module, and the gating switch is respectively connected with the control module and the plurality of charging interfaces J12.

Referring to fig. 2, the gate switch includes a first gate switch U3 for controlling the module to receive data and a second gate switch U4 for controlling the module to transmit data, and forms a bidirectional communication circuit, and the communication circuit is a serial communication circuit.

Referring to fig. 3, in an embodiment of the present invention, eight charging interfaces J12 are provided, each charging interface J12 includes CHN _ RX and CHN _ TX interfaces for interfacing with a data interface of a charger bank, the CHN _ RX interface is connected to the first gate switch U3, and the CHN _ TX interface is connected to the second gate switch U4.

An enabling line CH-EN is arranged between the control module and the gating switch and used for starting or closing the gating switch. And three-line control lines A00, A11 and A22 are further arranged between the control module and the gating switch, the gating switch is configured through the combination of high and low levels, and the corresponding charging interface J12 is selected for communication.

Referring to fig. 4, the power supply module includes a first power supply module for outputting a first voltage and a second power supply module for outputting a second voltage, the first voltage being greater than the second voltage;

in one embodiment of the utility model, the first voltage is 5V and the second voltage is 3.3V.

The first voltage is used for supplying power to the current limiting module U1, is output to the charging interface J12 through the current limiting module U1, and then charges the charger;

the second voltage is used for supplying power to the control module and the gating switch.

An enable line EN is arranged between the current limiting module U1 and the control module, and the control module is used for starting or closing the selection switch current limiting module U1 through the enable line EN. A feedback line FLG is arranged between the current limiting module U1 and the control module, when the current limiting module U1 is overcurrent, a fault signal is output to the control module through the feedback line FLG, and the control module closes the fault signal through an enabling line EN, so that safety is guaranteed.

The current limit module U1 is optimized for hot plug applications, controls rise and fall times, minimizes current overshoot or undershoot during switching, has fast short circuit response time, and may improve overall system robustness. And overcurrent protection, over-temperature protection and short-circuit protection, as well as controlled rise time and under-voltage locking functions are provided.

The communication module comprises an RS485 communication module and a USB communication module, the first voltage is used for supplying power to the USB communication module, and the second voltage is used for supplying power to the RS485 communication module. Remote communication is realized through the RS485 communication module, and high-bandwidth communication is realized through the USB communication module.

Furthermore, the communication module still includes the 4G communication module, and the power module still includes the third power module that is used for exporting third voltage, and the input of third power module is connected with the output of first power module, and in this embodiment, the third power is 3.8V, and the 4G communication module is the communication module of dual power supply, and second voltage and third voltage are used for supplying power for the 4G communication module.

The communication SIM card that 4G communication module used can be plug-in, also can be the eSIM module of paster on the circuit board, and the eSIM module is preferred to be connected to 4G communication module, and for the SIM cassette, the eSIM module occupies smallly, can reduce the space that the SIM cassette occupy, saves more spaces.

Further, the circuit board is further provided with a voice module U26 for outputting prompt information, referring to fig. 5, the voice module U26 is connected with the control module through a DATA _ SOUND line, and the voice module U26 is programmed with voice DATA, so that the prompt signal of the control module can be analyzed and output as PWM pure audio to directly drive a horn or a buzzer.

As shown in fig. 6 and 7, the circuit board further includes a protection gate circuit, and the protection gate circuit controls the opening and closing of the bin gate of the shared charger cabinet through a motor.

The protective door circuit comprises a plurality of groups of control buttons and a driving circuit, the control buttons are connected with the control module through LOCK circuits, the controlled end of the driving circuit is connected with the control module, and the driving circuit controls the motor to act to open and close the bin door.

Each group of driving circuits comprises a MOS type first power device Q9, a second power device Q10, and NPN type triodes Q13 and Q16, drain output ends of the first power device Q9 and the second power device Q10 are used for being connected with a motor, and a control module sends out control levels to be reversed through the triodes Q13 and Q16, so that the first power device Q9 and the second power device Q10 are controlled.

In the embodiment, the control module controls a plurality of groups of driving circuits through eight control ends A1-A4 and B1-B4, and is provided with eight control buttons SW2-SW9 to control different bin gates.

In summary, the circuit board sharing the charger baby cabinet provided by the utility model is connected with the plurality of charging interfaces J12 through the gating switch, the gating switch is connected with the control module through the pair of lines, and the gating switch selects one of the selection lines in the middle for communication, so that the plurality of charging interfaces J12 are prevented from being directly connected with the control module, the performance requirement on the control module is reduced, the cost is saved, the wiring of the circuit board is optimized, and the wiring pressure of the circuit board is reduced.

The above description is only for the purpose of illustrating the preferred embodiments of the present invention and is not to be construed as limiting the utility model, and any modifications, equivalents and improvements made within the spirit and principle of the present invention are intended to be included within the scope of the present invention.

Claims

1. The utility model provides a circuit board of sharing treasured rack that charges, including power module, a control module, a communication module for control module and external communication, a plurality of interface (J12) that charge that are used for charging the treasured and current-limiting module (U1) that are used for controlling interface (J12) output current that charges, it is equipped with communication circuit to charge between interface (J12) and the control module, a serial communication port, still be equipped with the gate switch between interface (J12) and the control module that charges for the alternative selects interface (J12) and the control module communication that charges, the gate switch is connected with control module, a plurality of interface (J12) that charge respectively.

2. The circuit board of a shared power bank cabinet as claimed in claim 1, wherein the gating switch comprises a first gating switch (U3) for the control module to receive data, and a second gating switch (U4) for the control module to send data, and the two-way communication circuit is a serial communication circuit.

3. The circuit board of a shared power bank cabinet according to claim 2, wherein the power module comprises a first power module for outputting a first voltage and a second power module for outputting a second voltage, the first voltage being greater than the second voltage; the first voltage is used for supplying power to the current limiting module (U1) and is output to the charging interface (J12) through the current limiting module (U1); the second voltage is used for supplying power to the control module and the gating switch.

4. The circuit board of claim 3, wherein the communication module comprises an RS485 communication module and/or a USB communication module, the first voltage is used for supplying power to the USB communication module, and the second voltage is used for supplying power to the RS485 communication module.

5. The circuit board of claim 4, wherein the communication module further comprises a 4G communication module and a third power module for outputting a third voltage, the second voltage and the third voltage are used for supplying power to the 4G communication module, and the 4G communication module is connected with an eSIM module.

6. The circuit board of a sharing treasured that charges cabinet of claim 5, characterized in that, the circuit board also is equipped with voice module (U26) for output prompt message, voice module (U26) is connected with control module.

7. The circuit board of a sharing treasured that charges rack of claim 3, characterized in that, the circuit board still is equipped with the protection gate circuit, the protection gate circuit includes multiunit control button and drive circuit, and control button is connected with control module through the LOCK circuit, and the controlled end of drive circuit is connected with control module, and drive circuit control motor switch door.