WO2021244082A1

WO2021244082A1 - Mobile chassis capable of automatically cutting off power, and robot

Info

Publication number: WO2021244082A1
Application number: PCT/CN2021/078561
Authority: WO
Inventors: 何源; 张涛
Original assignee: 深圳市普渡科技有限公司
Priority date: 2020-05-30
Filing date: 2021-03-02
Publication date: 2021-12-09
Also published as: CN212497733U

Abstract

A mobile chassis (1) capable of automatically cutting off power, the mobile chassis comprising: an accommodating portion (10), a battery assembly (20), a chassis housing (30) and an accommodating compartment cover (40). The accommodating portion (10) is arranged on the chassis housing (30), the battery assembly (20) is arranged in the accommodating portion (10), the accommodating portion (10) has an opening (11), the accommodating compartment cover (40) can open or close the opening (11), the chassis housing (30) is provided with a magnetic field sensor (31), the accommodating compartment cover (40) is provided with a magnetic element (41), and the magnetic field sensor (31) is arranged close to the opening (11). When the accommodating compartment cover (40) is separated from the opening (11), the battery assembly (20) stops supplying power. The battery assembly (20) can be quickly disassembled, thereby improving the convenience and safety of the maintenance of the battery assembly (20). The present application further relates to a robot comprising the mobile chassis (1).

Description

Mobile chassis and robot with automatic power-off

This application claims the priority of a Chinese patent application filed with the Chinese Patent Office, the application number is 202020965596.X, and the invention title is "Mobile Chassis and Robot with Automatic Power-off" on May 30, 2020, the entire content of which is incorporated by reference In this application.

Technical field

This application relates to the field of robotics technology, and in particular to a mobile chassis and a robot that can automatically cut off power.

Background technique

Mobile robots have been widely used in many fields, such as providing delivery services in restaurants, office buildings, and hotels. Mobile robots usually have a chassis, which drives the robot to move. The chassis is equipped with a battery. Therefore, the battery assembly is an important part of a mobile robot, and it is also a power source. In actual use, the battery needs to be maintained, including operations such as disassembly and replacement. However, the existing chassis structure cannot facilitate the removal of the battery, which causes difficulty in maintenance.

Application content

This application has been completed in view of the above-mentioned existing conditions, and its purpose is to provide a mobile chassis and a robot that can automatically cut off power, which can realize quick disassembly of the battery and facilitate maintenance.

In order to achieve the foregoing objectives, the implementation manners of this application provide the following technical solutions:

This application provides a battery quick-release assembly, including:

A receiving portion, a battery assembly, a chassis housing, and a receiving hatch, the receiving portion is arranged on the chassis shell, the battery assembly is arranged on the receiving portion, the receiving portion has an opening, the receiving hatch The open opening can be closed openly, the chassis housing is provided with a magnetic field sensor, the storage compartment cover is provided with a magnetic element, and the magnetic field sensor is provided close to the open opening; when the storage compartment cover is separated from the open opening , The battery assembly stops supplying power.

Wherein, when the storage compartment cover closes the open opening, the magnetic element is close to the magnetic field sensor.

Wherein, the magnetic element is located under the magnetic field sensor.

Wherein, the magnetic field sensor is a Hall sensor, the magnetic field sensor is arranged on a circuit board, and the magnetic element is a magnet.

Wherein, the circuit board is a rigid circuit board.

Wherein, the containment hatch is clamped to the open opening, and the containment hatch is detachable.

Wherein, the receiving part has a hardware male interface, the battery assembly has a hardware female interface, and the hardware male interface is electrically connected to the hardware female interface.

The present application also provides a robot, including the mobile chassis that can be automatically powered off as described above.

According to the mobile chassis and robot that can automatically cut off power provided by the present application, the magnetic field sensor is arranged close to the open opening. The magnetic field sensor can sense the opening of the containment compartment cover, so that when the battery assembly needs to be maintained, the battery assembly will automatically stop power supply, the battery assembly can be quickly removed, and the convenience and safety of battery assembly maintenance are improved.

Description of the drawings

FIG. 1 shows a schematic diagram of a three-dimensional structure in an open state of the storage compartment cover of a mobile chassis capable of automatically powering off according to an embodiment of the present application;

FIG. 2 shows a schematic diagram of another example of a three-dimensional structure in an open state of the storage compartment cover of the mobile chassis that can be automatically powered off according to the embodiment of the present application.

detailed description

Hereinafter, the preferred embodiments of the present application will be described in detail with reference to the drawings. In the following description, the same symbols are assigned to the same components, and repeated descriptions are omitted. In addition, the drawings are only schematic diagrams, and the ratio of the dimensions between the components or the shapes of the components may be different from the actual ones.

As shown in Figs. 1 to 2, the present application relates to a mobile chassis 1 that can be automatically powered off. The mobile chassis 1 that can automatically cut off power can be applied to a mobile robot to realize fast and safe assembly and disassembly of battery components.

In this embodiment, the mobile chassis 1 that can be automatically powered off includes a receiving portion 10, a battery assembly 20, a chassis housing 30 and a receiving hatch 40. The receiving portion 10 is disposed on the chassis housing 30. The battery assembly 20 is disposed in the receiving portion 10. The receiving portion 10 has an open opening 11. The receiving hatch 40 can open or close the open opening 11. The chassis housing 30 is provided with a magnetic field sensor 31. The receiving hatch 40 is provided with a magnetic element 41. The magnetic field sensor 31 is arranged close to the open opening 11. When the storage compartment cover 40 is separated from the open opening 11, the battery assembly 20 stops supplying power. In this case, the magnetic field sensor 31 is arranged close to the open opening 11. When the storage compartment cover 40 closes the open opening 11, the magnetic element 41 is located within the magnetic induction range of the magnetic field sensor 31. When the storage compartment cover 40 opens the open opening 11, the magnetic field passes through The sensor 31 can sense that the storage compartment cover 40 is opened, so that when the battery assembly 20 needs to be maintained, the battery assembly 20 automatically stops power supply, so that the battery assembly 20 can be quickly disassembled, which improves the convenience and safety of the battery assembly 20 maintenance.

In some examples, the receiving part 10 may include a receiving shell. There may be a receiving cavity inside the receiving shell. The battery assembly 20 may be disposed in the receiving cavity. The shape of the receiving cavity may match the shape of the battery assembly 20.

In some examples, the battery assembly 20 may be flat. The battery assembly 20 may be horizontally arranged in the accommodating part 10. The receiving hatch 40 is arranged on the side of the chassis shell 30 so that the receiving hatch 40 can be opened from the side of the mobile chassis 1.

In this embodiment, when the storage compartment cover 40 closes the open opening 11, the magnetic element 41 is close to the magnetic field sensor 31. Thus, the sensitivity of the magnetic field sensor 31 to the magnetic element 41 can be improved.

In this embodiment, the magnetic element 41 is located below the magnetic field sensor 31.

In this embodiment, the magnetic field sensor 31 is a Hall sensor. The magnetic field sensor 31 is arranged on a circuit board (not shown in the figure). The magnetic element 41 is a magnet.

In some examples, the magnetic element 41 may be enclosed inside the receiving hatch 40. Thus, the magnetic element 41 can be protected, and the magnetic induction of the magnetic field sensor 31 to the magnetic element 41 is not affected.

In this embodiment, the circuit board is a rigid circuit board.

In this embodiment, the storage compartment cover 40 is clamped to the open opening 11. The receiving hatch 40 is detachable. As a result, the battery assembly 20 can be taken out of the storage portion 10 more conveniently by removing the storage compartment cover 40.

In this embodiment, the receiving portion 10 has a hardware male interface (not shown in the figure). The battery assembly 20 has a female hardware interface (not shown). The hardware male interface is electrically connected to the hardware female interface.

In this embodiment, the mobile chassis 1 further includes a driving wheel set 50. The driving wheel group 50 is arranged at the bottom of the chassis shell, and the driving wheel group 50 is driven by a motor. Wherein, the driving wheel set 50 includes fixed wheels fixed in two directions and symmetrically arranged, and a universal wheel with a variable direction is arranged between the two fixed wheels. As an example, a set of universal wheels with variable directions are arranged between the two fixed wheels, and the two sets of universal wheels are arranged symmetrically.

In this embodiment, the application also relates to a robot (not shown in the figure), which includes the mobile chassis 1 that can be automatically powered off as described above. The specific implementation of the mobile chassis 1 that can be automatically powered off will not be repeated here.

In this case, the magnetic field sensor 31 is arranged close to the open opening 11. When the storage compartment cover 40 closes the open opening 11, the magnetic element 41 is located within the magnetic induction range of the magnetic field sensor 31. When the storage compartment cover 40 opens the open opening 11, the magnetic field passes through The sensor 31 can sense that the storage compartment cover 40 is opened, so that when the battery assembly 20 needs to be maintained, the battery assembly 20 automatically stops power supply, which improves the convenience and safety of the battery assembly 20 maintenance.

The above-mentioned embodiments do not constitute a limitation on the protection scope of the technical solution. Any modifications, equivalent replacements and improvements made within the spirit and principles of the above implementation manners should be included in the protection scope of the technical solution.

Claims

A mobile chassis that can automatically cut off power, which includes:

A receiving portion, a battery assembly, a chassis housing, and a receiving hatch, the receiving portion is arranged on the chassis shell, the battery assembly is arranged on the receiving portion, the receiving portion has an opening, the receiving hatch The open opening can be opened or closed, the chassis housing is provided with a magnetic field sensor, the storage compartment cover is provided with a magnetic element, and the magnetic field sensor is provided close to the open opening; when the storage compartment cover is separated from the open opening , The battery assembly stops supplying power.
The mobile chassis capable of automatically powering off according to claim 1, wherein when the receiving hatch closes the open opening, the magnetic element is close to the magnetic field sensor.
3. The mobile chassis capable of automatically powering off according to claim 1, wherein the magnetic element is enclosed inside the housing cavity cover.
The mobile chassis capable of automatically powering off according to claim 1, wherein the magnetic element is located below the magnetic field sensor.
The mobile chassis capable of automatically powering off according to claim 1, wherein the magnetic field sensor is a Hall sensor, the magnetic field sensor is arranged on a circuit board, and the magnetic element is a magnet.
The mobile chassis capable of automatically powering off according to claim 5, wherein the circuit board is a rigid circuit board.
The mobile chassis capable of automatically powering off according to claim 1, wherein the receiving hatch is clamped to the open opening, and the receiving hatch is detachable.
The mobile chassis capable of automatically powering off according to claim 1, wherein the receiving hatch is arranged on the side of the chassis shell.
The mobile chassis capable of automatically powering off according to claim 1, wherein the receiving portion includes a receiving shell, the receiving shell includes a receiving cavity, and the battery assembly is disposed in the receiving cavity.
9. The mobile chassis capable of automatically powering off according to claim 9, wherein the shape of the receiving cavity matches the shape of the battery assembly.
9. The mobile chassis capable of automatically powering off according to claim 9, wherein the battery assembly is flat, and the battery assembly is horizontally arranged in the receiving cavity of the receiving portion.
The mobile chassis capable of automatically powering off according to claim 1, wherein the receiving portion has a hardware male interface, the battery assembly has a hardware female interface, and the hardware male interface is electrically connected to the hardware female interface.
The mobile chassis capable of automatically powering off according to claim 1, wherein the mobile chassis further comprises a drive wheel set, and the drive wheel set is arranged at the bottom of the chassis shell.
The mobile chassis capable of automatically powering off according to claim 13, wherein the driving wheel set is driven by a motor.
The mobile chassis capable of automatically powering off according to claim 13, wherein the drive wheel set includes two fixed and symmetrically arranged fixed wheels, and a variable-direction universal wheel is arranged between the two fixed wheels.
The mobile chassis capable of automatically powering off according to claim 15, wherein a set of universal wheels with variable directions are arranged between the two fixed wheels.
A robot comprising the mobile chassis capable of automatically powering off according to any one of claims 1-16.