IP Library Granted Patent US 12685421
Granted Patent B2
US 12685421 · App. 17/769,711 · Granted Jul 21, 2026

Autonomous mobile robot

Inventors: Keting Yang (Suzhou, CN); Ya Liu (Suzhou, CN); Qingtao Chen (Suzhou, CN); Zeheng Tang (Suzhou, CN)
Assignee: ECOVACS ROBOTICS CO., LTD.
A47L11/4061A47L11/24A47L11/40A47L11/4011G05D1/0227A47L2201/04
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Quick Facts
Patent No.
US 12685421
App. No.
17/769,711
Granted
Jul 21, 2026
Kind
B2
Abstract

Provided is an autonomous mobile robot, includes a cover, a base and a pressure sensor assembly; the cover includes a top plate and a side plate that are integrally arranged, a connecting portion is formed between the top plate and the side plate, and the connecting portion is at least partially higher than the top plate; the base is arranged below the top plate; and the pressure sensor assembly is arranged in a manner of facing the side plate. The impact of the traditional autonomous mobile robot using a floating bump plate on the positioning accuracy of an optical component may be avoided and the reliability of the autonomous mobile robot during the movement is improved.

Claims (35)

1 . An autonomous mobile robot, comprising: a cover, a base, and a pressure sensor assembly; wherein,

the cover comprises a top plate and a side plate, the top plate and the side plate are integrally arranged, a connecting portion is formed between the top plate and the side plate, and the connecting portion is at least partially higher than the top plate; wherein the connecting portion comprises a first surface and a second surface, the first surface is connected to the top plate, and the second surface is connected to the side plate, there is an included angle between the first surface and the second surface;

the base is arranged below the top plate; and

the pressure sensor assembly is arranged between the top plate and the side plate and a sensing surface of the pressure sensor assembly faces the side plate;

wherein the pressure sensor assembly comprises at least one strain pressure sensor;

each of the at least one strain pressure sensor comprises a sensor seat and a sensor body; the sensor seat is arranged on a side of the top plate facing the base; the sensor body is arranged on the sensor seat; and a sensing surface of the sensor body faces the side plate;

wherein each of the at least one strain pressure sensor further comprises a sensor cover; the sensor cover is connected to the sensor seat and moves relative to the sensor seat; a side of the sensor cover facing away from the sensor seat faces the side plate; and a side of the sensor cover facing the sensor seat is provided with a first sensing protrusion opposite to the sensor body.

2 . The autonomous mobile robot according to claim 1 , wherein the included angle is in an inverted V-shaped structure.

3 . The autonomous mobile robot according to claim 1 , wherein the side plate is made of rigid plastic.

4 . The autonomous mobile robot according to claim 1 , wherein a first gap is reserved between an end part of the side plate close to the base and an outer edge of the base.

5 . The autonomous mobile robot according to claim 1 , wherein the base is provided with a groove, a lower end of the side plate is inserted into the groove, and a second gap is reserved between an inner wall of the groove and the lower end of the side plate.

6 . The autonomous mobile robot according to claim 1 , wherein a thickness of the connecting portion is 1 mm to 2 mm.

7 . The autonomous mobile robot according to claim 1 , wherein a thickness of the side plate is 1 mm to 2 mm.

8 . The autonomous mobile robot according to claim 1 , wherein the pressure sensor assembly comprises a sensor support layer and a sensor body layer being attached to each other.

9 . The autonomous mobile robot according to claim 8 , further comprising: a first fixed frame; wherein,

the first fixed frame is arranged on the top plate; the pressure sensor assembly is arranged between the side plate and the first fixed frame; an end part of the first fixed frame close to the side plate abuts against the sensor support layer; and the end part of the first fixed frame away from the side plate has a first preset distance from the side plate.

10 . The autonomous mobile robot according to claim 9 , wherein a minimum value of the first preset distance is 5 mm.

11 . The autonomous mobile robot according to claim 10 , wherein the first preset distance is 14 mm to 17 mm.

12 . The autonomous mobile robot according to claim 1 , wherein a number of the at least one strain pressure sensor is not less than two; and an included angle between two adjacent strain pressure sensors is not more than 45 degrees.

13 . The autonomous mobile robot according to claim 1 , further comprising: a second fixed frame; wherein,

the second fixed frame is arranged on a side of the top plate facing the base; the sensor seat is arranged on a side of the second fixed frame facing the side plate; and the sensor body has a second preset distance from the side plate.

14 . The autonomous mobile robot according to claim 13 , wherein the second preset distance is 15.5 mm to 17.5 mm.

15 . The autonomous mobile robot according to claim 1 , wherein the sensor cover on both sides of the first sensing protrusion is provided with a connecting rod facing the sensor seat; an end part of the connecting rod is provided with a hook; and a position of the sensor seat opposite to the connecting rod is provided with a connecting slot for the connecting rod to pass through.

16 . The autonomous mobile robot according to claim 1 , wherein the pressure sensor assembly is fixed on the top plate.

17 . The autonomous mobile robot according to claim 1 , wherein a sensing surface of the pressure sensor assembly is located below the connecting portion.

18 . An autonomous mobile robot, comprising: a cover, a base, and a pressure sensor assembly; wherein,

the cover comprises a top plate and a side plate, the top plate and the side plate are integrally arranged, a connecting portion is formed between the top plate and the side plate, and the connecting portion is at least partially higher than the top plate; wherein the connecting portion comprises a first surface and a second surface, the first surface is connected to the top plate, and the second surface is connected to the side plate, there is an included angle between the first surface and the second surface;

the base is arranged below the top plate; and

the pressure sensor assembly is arranged between the top plate and the side plate and a sensing surface of the pressure sensor assembly faces the side plate, and a preset distance between a fixed frame of the pressure sensor assembly and the side plate is greater than 5 mm;

wherein the pressure sensor assembly comprises at least one strain pressure sensor;

each of the at least one strain pressure sensor comprises a sensor seat and a sensor body; the sensor seat is arranged on a side of the top plate facing the base; the sensor body is arranged on the sensor seat; and a sensing surface of the sensor body faces the side plate;

wherein each of the at least one strain pressure sensor further comprises a sensor cover; the sensor cover is connected to the sensor seat and moves relative to the sensor seat; a side of the sensor cover facing away from the sensor seat faces the side plate; and a side of the sensor cover facing the sensor seat is provided with a first sensing protrusion opposite to the sensor body.

19 . An autonomous mobile robot, comprising: a housing and a pressure sensor assembly; wherein,

the housing comprises a base plate and a side plate, the base plate and the side plate are integrally arranged, a connecting portion is formed between the base plate and the side plate, the connecting portion comprises a first surface and a second surface, the first surface is connected to the base plate, and the second surface is connected to the side plate, there is an included angle between the first surface and the second surface; and the included angle is an acute angle; and

the pressure sensor assembly is arranged between the top plate and the side plate and a sensing surface of the pressure sensor assembly faces the side plate.