CN212012172U

CN212012172U - Power supply circuit and robot apparatus

Info

Publication number: CN212012172U
Application number: CN202020465050.8U
Authority: CN
Inventors: 王玉奇; 吴春来; 李向龙; 熊友军
Original assignee: Ubtech Robotics Corp
Current assignee: Ubtech Robotics Corp
Priority date: 2020-04-01
Filing date: 2020-04-01
Publication date: 2020-11-24
Anticipated expiration: 2030-04-01

Abstract

The application discloses power supply circuit and robot equipment, power supply circuit includes: a charging interface for connection to a power input; the charging circuit is connected between the charging interface and the battery, and adjusts the voltage and the current of the power input based on the power input so as to charge the battery in different charging states of the battery; and two input ends of the gating circuit are respectively connected with the charging interface and the battery, an output end of the gating circuit is used for being connected to a load, the gating circuit is used for inputting a power supply to the load to supply power when the charging interface has the power supply input, and the battery supplies power to the load when the charging interface has no power supply input. When the charging power supply is input, the utility model can charge the battery of the device by using the accessed power supply, and simultaneously, the accessed power supply can directly supply power to the load by using the gating circuit to output the load; when no charging power supply is connected, the gating circuit can output the voltage of the battery to a load for power supply, so that the problem that the equipment cannot work while charging is solved, the battery of the equipment is used as a backup, and the applicable scene is wider.

Description

Power supply circuit and robot apparatus

Technical Field

The application belongs to the technical field of power supply circuits, and particularly relates to a power supply circuit and a robot device.

Background

Today, the robot technology is rapidly developed, the degree of intelligence of the robot is higher and higher, and the application scene is more and more complex. Particularly, a large mobile robot can only work under the condition of charging, but cannot work while charging, and cannot meet actual requirements.

SUMMERY OF THE UTILITY MODEL

The application aims to provide a power supply circuit and robot equipment, and aims to solve the problem that the conventional power supply circuit cannot enable the robot equipment to work while charging.

A first aspect of an embodiment of the present application provides a power supply circuit, including:

a charging interface for connection to a power input;

the charging circuit is connected between the charging interface and the battery and charges the battery based on the power supply input;

and two input ends of the gating circuit are respectively connected with the charging interface and the battery, an output end of the gating circuit is used for being connected to a load, the gating circuit is used for inputting a power supply to the load to supply power when the charging interface has the power supply input, and the battery supplies power to the load when the charging interface has no power supply input.

In one embodiment, the gating circuit includes:

a conductive switch, a first conducting end of the conductive switch being used as a first input end of the gating circuit, the first input end being connected to the battery;

and the anode of the diode and the control end of the conductive switch are connected together to be used as a second input end of the gating circuit, the second input end is connected with the charging interface, and the second conducting end of the conductive switch and the cathode of the diode are connected together to be used as an output end of the gating circuit.

In one embodiment, the conductive switch is a pMOS transistor, and the pMOS transistor cuts off the path from the battery to the load when the charging interface has a power input to the gate thereof, so that the power input supplies power to the load.

In one embodiment, the conductive switch is a relay that closes the path from the battery to the load when the charging interface has a power input to its gate, such that the power input powers the load.

In one embodiment, the method further comprises the following steps:

the two detection circuits are respectively connected with the two input ends of the gating circuit and are respectively used for outputting two detection signals according to the voltages of the two input ends;

the microprocessor is connected with the two detection circuits and determines the states of the battery and the power supply input based on the two detection signals;

and the communication module is connected with the microprocessor and used for sending the states of the battery and the power supply input.

In one embodiment, the detection circuit comprises two voltage dividing resistors connected in series to the input end of the gating circuit, and the common joint of the two voltage dividing resistors is connected to the microprocessor.

In one embodiment, the communication module is a wireless communication module or a wired communication interface.

In one embodiment, the charging circuit comprises a charging IC and a voltage conversion circuit built based on the charging IC.

In one embodiment, the charging IC model is BQ24610 RGER.

A second aspect of embodiments of the present application provides a robot apparatus including an electric load, a battery, and the power supply circuit described above.

When a charging power supply is input, the power supply circuit and the robot equipment containing the current can utilize the accessed power supply to charge the battery of the equipment, and can utilize the accessed power supply to output a load by a gating circuit to directly supply power to the load; when no charging power supply is connected, the gating circuit can output the voltage of the battery to a load for power supply, so that the problem that the equipment cannot work while charging is solved, the battery of the equipment is used as a backup, and the applicable scene is wider.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or the prior art descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without inventive exercise.

Fig. 1 is a schematic diagram of a power circuit according to an embodiment of the present disclosure;

FIG. 2 is an exemplary circuit schematic of a gate circuit and a detection circuit of the power circuit shown in FIG. 1;

fig. 3 is an exemplary circuit schematic of a charging circuit in the power circuit shown in fig. 1.

Detailed Description

In order to make the objects, technical solutions and advantages of the present application more apparent, the present application is described in further 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 present application and are not intended to limit the present application.

Referring to fig. 1, a power circuit applicable to a robot device according to an embodiment of the present disclosure includes a charging interface 10, a charging circuit 20, and a gating circuit 30.

The charging interface 10 is used for connecting to a power input Vin, the charging interface 10 is used for plugging a power adapter to access the power input Vin, and the power input Vin is, for example, 24V dc voltage; the charging circuit 20 is connected between the charging interface 10 and the electrode of the battery 100, the charging circuit 20 charges the battery 100 based on the power input Vin, and when the power input Vin is accessed, the charging circuit 20 adjusts the voltage and the current of the power input Vin to correspond to different charging states of the battery 100; two

input ends

31 and 32 of the gating circuit 30 are respectively connected with the charging interface 10 and the electrode of the battery 100, an output end 33 of the gating circuit 30 is used for being connected to the load 200, the gating circuit 30 is used for supplying power to the load 200 from the power input Vin when the charging interface 10 has the power input Vin, and supplying power to the load 200 from the battery 100 when the charging interface 10 has no power input Vin.

The power circuit provided by the embodiment can charge the battery 100 and supply power to the load 200 when receiving the power input Vin, and can supply power to the load 200 by using the battery 100 when not receiving the power input Vin, so that the effect of working while charging is achieved.

Referring to fig. 2, in one embodiment, the gating circuit 30 includes a conductive switch 34 and a diode 35, a first conducting terminal of the conductive switch 34 is used as the first input terminal 31 of the gating circuit 30, and the first input terminal 31 is connected to the electrode of the battery 100; the anode of the diode 35 and the control terminal of the conductive switch 34 are connected in common and serve as the second input terminal 32 of the gating circuit 30, the second input terminal 32 is connected to the charging interface 10, and the second conducting terminal of the conductive switch 34 and the cathode of the diode 35 are connected in common and serve as the output terminal 33 of the gating circuit 30. Specifically, the conductive switch 34 is in an on state by default, when the control terminal of the conductive switch 34 and the anode of the diode 35 have the power input Vin, the power input Vin controls the conductive switch 34 to be turned off, and at the same time, the cathode of the diode 35 is directly output to the load 200 to supply power to the load, the conductive switch 34 is turned off, that is, the power supply channel between the battery 100 and the load 200 is turned off, and the battery 100 is only charged but not discharged, so as to form a backup power supply; when the control terminal of the conductive switch 34 and the anode of the diode 35 are not connected to the power input Vin, the conductive switch 34 is turned on to output the voltage of the battery 100 to the load 200 to supply power to the load.

In one embodiment, the conductive switch 34 is a pMOS transistor, the source of the pMOS transistor is used as the first conducting terminal, the drain of the pMOS transistor is used as the second conducting terminal, and the gate of the pMOS transistor is used as the control terminal. When the charging interface 10 has a power input Vin to the gate thereof, the pMOS transistor turns off the path from the battery 100 to the load 200, so that the power input Vin supplies power to the load 200; as can be seen from the above description, otherwise, the battery 100 is used to supply power to the load 200. In another embodiment, conductive switch 34 is a relay that closes the path from battery 100 to load 200 when charging interface 10 has a power input Vin to its gate, so that the power input Vin powers load 200; as can be seen from the above description, on the contrary, the battery 100 is used to supply power to the load 200, and the contacts of the relay connected between the battery 100 and the load 200 are normally closed contacts.

Referring to fig. 2, in one embodiment, the power circuit further includes two detection circuits 40, a microprocessor 50 and a communication module 60. The two detection circuits 40 are respectively connected with the two

input ends

31 and 32 of the gating circuit 30, and are respectively used for outputting two detection signals according to the voltages of the two

input ends

31 and 32; the microprocessor 50 is connected with the two detection circuits 40, and determines the states of the battery 100 and the power input Vin based on the two detection signals; the communication module 60 is connected to the microprocessor 50 for transmitting the status of the battery 100 and the power input Vin.

Specifically, the microprocessor 50 may monitor the voltage of the power input Vin and the voltage of the battery 100 in real time, and when detecting that the second input terminal 32 is at a high level, there is an access power input Vin, and when detecting that the second input terminal is at a low level, there is no access power input Vin; when the first input terminal 31 is detected to be at a high level, the battery 100 is powered, and when the first input terminal is detected to be at a low level, the battery 100 is powered off; when detecting that the battery 100 or the direct charging is out of power, the microprocessor 50 will transmit back to the background server in the form of a communication interface, so as to realize power failure alarm and prompt relevant personnel to process.

In one embodiment, the detection circuit 40 includes two voltage dividing resistors R1, R2 connected in series to the input terminal 31/32 of the gating circuit 30, and the common junction of the two voltage dividing resistors R1, R2 is connected to the microprocessor 50. The communication module 60 is a wireless communication module 60 or a wired communication interface.

Referring to fig. 3, in one embodiment, the charging circuit 20 includes a charging IC and a voltage converting circuit built based on the charging IC. In one embodiment, the charging IC is model BQ24610 RGER.

A second aspect of the embodiments of the present application provides a robot apparatus including an electric load 200, a battery 100, and the power supply circuit described above.

The power circuit and the robot device containing the current are provided with a charging circuit, when a charging power supply inputs Vin, the battery 100 of the device can be charged by using the accessed power supply, and meanwhile, the accessed power supply can be directly supplied to the load 200 by using the load 200 output by the gating circuit 30; when no charging power supply is connected, the gating circuit 30 can output the voltage of the battery 100 to the load 200 for power supply, so that the problem that the device cannot work while charging is carried out is solved, and the battery 100 of the device is used as a backup, so that the applicable scene is wider.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A power supply circuit, comprising:

a charging interface for connection to a power input;

the charging circuit is connected between the charging interface and the battery, and adjusts the voltage and the current of the power input based on the power input so as to charge the battery in different charging states of the battery;

2. The power supply circuit of claim 1, wherein the gating circuit comprises:

3. The power supply circuit of claim 2 wherein said conductive switch is a pMOS transistor which, when the charging interface has a power input to its gate, closes the path from the battery to the load, causing the power input to power the load.

4. The power circuit of claim 2, wherein the conductive switch is a relay that closes the path from the battery to the load when the charging interface has a power input to its gate, such that the power input powers the load.

5. The power supply circuit according to any one of claims 1 to 4, further comprising:

6. The power supply circuit of claim 5 wherein the detection circuit includes two voltage dividing resistors connected in series to the input of the gating circuit, a common junction of the two voltage dividing resistors being connected to the microprocessor.

7. The power circuit of claim 5, wherein the communication module is a wireless communication module or a wired communication interface.

8. The power supply circuit according to any one of claims 1 to 4, wherein the charging circuit comprises a charging IC and a voltage conversion circuit built based on the charging IC.

9. The power supply circuit of claim 8, wherein the charging IC is of the type BQ24610 RGER.

10. A robotic device comprising an electrical load, a battery and a power supply circuit as claimed in any one of claims 1 to 9.