CN211266597U

CN211266597U - Wireless charging trolley

Info

Publication number: CN211266597U
Application number: CN201922003862.0U
Authority: CN
Inventors: 李云; 李炳; 孙山林; 谭智诚
Original assignee: Guilin University of Aerospace Technology
Current assignee: Guilin University of Aerospace Technology
Priority date: 2019-11-19
Filing date: 2019-11-19
Publication date: 2020-08-14
Anticipated expiration: 2029-11-19

Abstract

The utility model provides a wireless charging trolley, which comprises a trolley body, a motor driving the trolley body to move, a wireless charging module, a self-starting module, a timing starting module, a comprehensive control module and a PWM control module, wherein the wireless charging module, the self-starting module, the timing starting module, the comprehensive control module and the PWM control module are respectively arranged on the trolley; the self-starting module is electrically connected with the wireless charging module and is used for realizing the power-off self-starting of the motor; the timing starting module is electrically connected with the wireless charging module and used for controlling the motor to start according to preset time; the comprehensive control module is respectively electrically connected with the self-starting module and the timing starting module and is used for controlling the power supply condition of the motor; and the PWM control module is electrically connected with the comprehensive control module and is used for driving the motor to move. Compared with the prior art, the utility model discloses a wireless dolly that charges has the function of outage self-starting and regularly starting.

Description

Wireless charging trolley

Technical Field

The utility model relates to a wireless charging technology field especially relates to a wireless dolly that charges.

Background

With the development of technology, wireless charging systems are gradually applied to many aspects, such as mobile phones, automobiles, and the like. There are many technologies in the aspect of the car, as 2018 11 months, the wireless rechargeable electronic dolly of applying for by the ningde professor, it includes STM32 chip, 3.3V power module, 5V1A power module, wireless power module, display module, power supply receiving module, STC singlechip, control circuit module and dolly, 3.3V power module, wireless power module and display module all are connected with the STM32 chip, wireless power module and 3.3V power module all are connected with 5V1A power module, power supply receiving module and wireless power module looks adaptation, power supply receiving module is connected with the STC singlechip, the STC singlechip is connected with control circuit module, the dolly is connected with control circuit module.

In the prior art, the wireless charging trolley cannot be automatically started after charging is finished, and the function of controlling the starting of the trolley in a timing mode is not provided.

Therefore, there is a need to provide a new wireless charging cart to solve the above problems.

SUMMERY OF THE UTILITY MODEL

An object of the utility model is to provide a wireless dolly that charges with outage self-starting and regularly start function.

In order to achieve the purpose, the utility model provides a wireless charging trolley, which comprises a trolley body, a motor driving the trolley body to move, and a wireless charging module, a self-starting module, a timing starting module, a comprehensive control module and a PWM control module which are respectively arranged on the trolley;

the wireless charging module comprises a receiving coil arranged on the vehicle body and a rectifying circuit connected with the receiving coil, and the receiving coil is used for being coupled with a transmitting coil of an external wireless power supply and realizing wireless charging;

the self-starting module is electrically connected with the wireless charging module and is used for realizing the power-off self-starting of the motor;

the timing starting module is electrically connected with the wireless charging module and used for controlling the starting of the motor according to preset time;

the comprehensive control module is respectively electrically connected with the self-starting module and the timing starting module and is used for controlling the power supply condition of the motor;

and the PWM control module is electrically connected with the comprehensive control module and is used for driving the motor to move.

Preferably, the self-starting module comprises a first input end, a diode, a super capacitor, a relay and a first output end; the first input end is connected with the output of the rectifying circuit, the positive end of the diode is connected with the first input end, the negative end of the diode is electrically connected with the positive end of the super capacitor, the normally closed end of the relay is electrically connected with the negative end of the super capacitor, the public end of the relay is connected with the first output end, and the power supply of the relay is provided by the first input end.

Preferably, the timing starting module comprises an AD conversion chip, a zener diode, and a first resistor; the AD conversion chip converts the analog voltage of the super capacitor into a digital signal and transmits the digital signal to the comprehensive control module, and an IN port of the AD conversion chip is connected with the first output end; the negative end of the voltage stabilizing diode is grounded, and the positive end of the voltage stabilizing diode is connected with an out port of the AD conversion chip; the first end of the first resistor is connected with an out port of the AD conversion chip, and the second end of the first resistor is connected with a power supply voltage.

Preferably, the integrated control module is an MSP-430F5529LP chip, an input end of the MSP-430F5529LP chip is connected to an out port of the AD conversion chip, and an output end of the MSP-430F5529 chip is connected to the PWM control module.

Preferably, the PWM control module includes a second resistor, a third resistor, a first transistor and a second transistor, a first end of the second resistor is connected as an input to the output end of the MSP-430F5529LP chip, and a second end of the second resistor is connected to the base of the first transistor; the emitter of the first triode is grounded, and the collector of the first triode is connected with the first end of the third resistor; the second end of the third resistor is connected with the base electrode of the second triode, the emitting electrode of the second triode is connected with the motor, and the collecting electrode of the second triode is electrically connected with power supply voltage.

Preferably, be equipped with the singlechip on the wireless module of charging, the singlechip is STM32F103C8T6 minimum system, just be equipped with the button on the singlechip.

Preferably, the relay is a 3.3V direct current relay.

Preferably, the wireless charging module is a 5V1A wireless charging module.

Compared with the prior art, the cathode end of the diode is electrically connected with the anode end of the super capacitor, the normally closed end of the relay is electrically connected with the negative end of the super capacitor, the common end of the relay is connected with the first output end, when charging is started, the relay is electrified, the super capacitor is disconnected with the motor, the motor is not started, when charging is stopped, the relay is connected with the super capacitor and the motor, the super capacitor starts to discharge, and the motor starts to drive the vehicle body to move, so that the self-starting function is achieved; the AD conversion chip converts the analog voltage of the super capacitor into a digital signal and transmits the digital signal to the comprehensive control module, and the comprehensive control module is used for controlling the motor to be started according to preset time.

Drawings

In order to make the content of the invention clearer, the drawings needed for describing the embodiments will be briefly described below, it is obvious that the drawings in the following description are only some embodiments of the invention, and other drawings can be obtained by those skilled in the art without inventive effort, wherein:

fig. 1 is a schematic block diagram of the wireless charging cart of the present invention;

fig. 2 is a schematic diagram of a self-starting module in the wireless charging trolley of the utility model;

fig. 3 is a schematic diagram of a timing start module in the wireless charging trolley of the present invention;

fig. 4 is the schematic diagram of the PWM control module in the wireless charging cart of the present invention.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative efforts belong to the protection scope of the present invention.

Please refer to fig. 1-4, the utility model provides a wireless dolly 10 that charges, including automobile body 7, drive motor 6 that automobile body 7 marcd and install respectively in wireless charging module 1, self-starting module 2, timing starting module 3, integrated control module 4 and PWM control module 5 on the dolly, self-starting module 2 with wireless charging module 1 is connected, timing starting module 3 with wireless charging module 1 is connected, integrated control module 4 respectively with self-starting module 2 with timing starting module 3 is connected, PWM control module 5 with integrated control module 4 is connected, motor 6 with PWM control module 5 is connected, and automobile body 7 is connected with motor 6.

The wireless charging module 1 comprises a receiving coil arranged on the vehicle body 7 and a rectifying circuit connected with the receiving coil, and the receiving coil is used for being coupled with a transmitting coil of an external wireless power supply and realizing wireless charging; the wireless charging module 1 is also provided with a single chip microcomputer, and the single chip microcomputer is provided with a key.

In this embodiment, the wireless charging module 1 is a 5V1A wireless charging module, and a receiving coil of the wireless charging module 1 is used for coupling with a transmitting coil of an external wireless power supply to realize wireless charging; the single chip microcomputer is a STM32F103C8T6 minimum system, is provided with a key, and controls the disconnection and the connection of the wireless charging module 1 through the key, so that the starting and the stopping of the wireless charging trolley 10 are controlled.

The self-starting module 2 comprises a first input end, a diode D1, a capacitor C1, a capacitor C2, a capacitor C3, a capacitor C4, a capacitor C5, a capacitor C6, a relay S1 and a first output end; the capacitor C1 and the capacitor C2 are connected in series to form a first capacitor bank, the capacitor C3 and the capacitor C4 are connected in series to form a second capacitor bank, the capacitor C5 and the capacitor C6 form a third capacitor bank, and the first capacitor bank, the second capacitor bank and the third capacitor bank are connected in parallel to form a super capacitor C. The first input end is connected with the output of the rectifying circuit, the positive end of the diode D1 is connected with the first input end, the negative end of the diode D1 is electrically connected with the positive end of the super capacitor C, the normally closed end of the relay S1 is electrically connected with the negative end of the super capacitor C, the common end of the relay S1 is connected with the first output end, and the power supply of the relay is provided by the first input end.

In this embodiment, the relay S1 is a 3.3V dc relay, the negative terminal of the diode D1 is electrically connected to the positive terminal of the super capacitor C, the normally closed terminal of the relay S1 is electrically connected to the negative terminal of the super capacitor C, the common terminal of the relay S1 is connected to the first output terminal, when charging is started, the relay S1 is powered on, the super capacitor C and the motor 6 are disconnected, the motor 6 is not started, when charging is stopped, the relay S1 connects the super capacitor C and the motor 6, the super capacitor C starts discharging, the motor 6 is started, and the vehicle body 7 is driven to move, so that the self-starting function is achieved.

The timing starting module 3 comprises an AD conversion chip, a diode D2 and a first resistor R1; the AD conversion chip converts the analog voltage of the super capacitor C into a digital signal and transmits the digital signal to the comprehensive control module 4, and an IN port of the AD conversion chip is connected with the first output end; the negative electrode end of the diode D2 is grounded, and the positive electrode end of the diode D2 is connected with the AD conversion chip; the first end of the first resistor R1 is connected with the AD conversion chip, and the second end of the first resistor R1 is connected with a power supply voltage.

In this embodiment, the IO port of the AD conversion chip is limited by the analog input voltage, and in order to meet the requirement of the IO port on the analog input voltage, the diode D2 is a zener diode; the resistance value of the first resistor R1 is 1K omega; the AD conversion chip converts the analog voltage of the super capacitor C into a digital signal and transmits the digital signal into the comprehensive control module 4, and the self-starting module 2 is controlled to realize the starting of the motor 6 according to preset time. As an alternative, the timing module 3 may replace the processing function of the AD conversion chip with an external AD converter, which has the advantage of avoiding the limitation of the analog voltage at the IO port.

The integrated control module 4 is an MSP430 chip, an input end of the MSP430 chip is connected with an out port of the AD conversion chip, and an output end of the MSP430 chip is connected with the PWM control module 5. The comprehensive control module 4 is also connected with a tracing module.

In this embodiment, the model of the MSP430 chip is MSP-430F5529LP, the tracking module is composed of three infrared tracking modules, when the wireless charging cart 10 passes through a black line, the tracking module outputs a low level, otherwise, the tracking module outputs a high level, and inputs the output level to the IO port, and then the integrated control module 4 makes the wireless charging cart 10 travel along the black line.

The PWM control module 5 includes a second resistor R2, a third resistor R3, a first transistor Q1 and a second transistor Q2, a first end of the second resistor R2 is connected as an input to an output end of the MSP-430F5529LP chip, and a second end of the second resistor R2 is connected to a base of the first transistor Q1; the emitter of the first triode Q1 is grounded, and the collector of the first triode Q1 is connected with the first end of the third resistor R3; a second end of the third resistor R3 is connected to a base of the second transistor Q2, an emitter of the second transistor Q2 is connected to the motor 6, and a collector of the second transistor Q2 is electrically connected to a supply voltage. In this embodiment, the resistance of the second resistor R2 is 5.3K Ω, and the resistance of the third resistor R3 is 4.7K Ω.

The above examples are only for clearly illustrating the present invention and are not to be construed as limiting the embodiments; the scope of the present invention includes, but is not limited to, the above embodiments, and all equivalent changes made by the shape and structure according to the present invention are included in the protection scope of the present invention.

Claims

1. A wireless charging trolley is characterized by comprising a trolley body, a motor for driving the trolley body to advance, and a wireless charging module, a self-starting module, a timing starting module, a comprehensive control module and a PWM (pulse width modulation) control module which are respectively arranged on the trolley;

2. The wireless charging trolley according to claim 1, wherein the self-starting module comprises a first input end, a diode, a super capacitor, a relay, and a first output end; the first input end is connected with the output of the rectifying circuit, the positive end of the diode is connected with the first input end, the negative end of the diode is electrically connected with the positive end of the super capacitor, the normally closed end of the relay is electrically connected with the negative end of the super capacitor, the public end of the relay is connected with the first output end, and the power supply of the relay is provided by the first input end.

3. The wireless charging trolley according to claim 2, wherein the timing starting module comprises an AD conversion chip, a voltage stabilizing diode and a first resistor; the AD conversion chip converts the analog voltage of the super capacitor into a digital signal and transmits the digital signal to the comprehensive control module, and an IN port of the AD conversion chip is connected with the first output end; the negative end of the voltage stabilizing diode is grounded, and the positive end of the voltage stabilizing diode is connected with an out port of the AD conversion chip; the first end of the first resistor is connected with an out port of the AD conversion chip, and the second end of the first resistor is connected with a power supply voltage.

4. The wireless charging cart of claim 3, wherein the integrated control module is an MSP-430F5529LP chip, the MSP-430F5529LP chip has an input terminal connected to the out port of the AD conversion chip and an output terminal connected to the PWM control module.

5. The wireless charging cart of claim 4, wherein the PWM control module comprises a second resistor, a third resistor, a first transistor, and a second transistor, a first end of the second resistor is connected as an input to the output of the MSP-430F5529LP chip, and a second end of the second resistor is connected to the base of the first transistor; the emitter of the first triode is grounded, and the collector of the first triode is connected with the first end of the third resistor; the second end of the third resistor is connected with the base electrode of the second triode, the emitting electrode of the second triode is connected with the motor, and the collecting electrode of the second triode is electrically connected with power supply voltage.

6. The wireless charging trolley according to claim 1, wherein a single chip microcomputer is arranged on the wireless charging module, the single chip microcomputer is an STM32F103C8T6 minimum system, and a key is arranged on the single chip microcomputer.

7. The wireless charging trolley according to claim 2, wherein the relay is a 3.3V direct current relay.

8. The wireless charging trolley according to claim 1, wherein the wireless charging module is a 5V1A wireless charging module.