Robot

Patent metadata

Field	Value
Publication number	US-11660741-B2
Application number	US-202016845503-A
Country	US
Kind code	B2
Filing date	Apr 10, 2020
Priority date	Dec 5, 2019
Publication date	May 30, 2023
Grant date	May 30, 2023

Abstract

A robot includes a housing, a body frame disposed inside the housing, a driving motor provided at lower portion of the body frame, a driving wheel rotated by the driving motor and protruding downward of the housing, a control rack mounted to the body frame and positioned above the driving motor, an opening defined in the housing and positioned at a rear side of the control rack, the control rack being insertable into the opening, and a back cover covering the opening.

First claim

What is claimed is:

1. A robot, comprising:
a housing having a rear side;
a body frame disposed inside the housing;
a driving motor provided at a lower portion of the body frame;
a driving wheel configured to be rotated by the driving motor and protruding downward from the housing;
a control rack mounted to the body frame and positioned above the driving motor;
an opening positioned at a rear side of the control rack; and
a back cover configured to cover the opening,
wherein the control rack is removable through the opening.

2. The robot according to claim 1 , wherein the body frame comprises:
a base;
an inner plate spaced upward from the base and configured to support the control rack; and
a top cover spaced upward from the inner plate, and
wherein the control rack is disposed between the inner plate and the top cover.

3. The robot according to claim 2 , wherein a pad is attached to an upper surface of the inner plate, and
wherein the pad comprises:
an elastic layer having an elastic material; and
an insulator layer positioned above the elastic layer, the insulator layer contacting the control rack and having a coefficient of friction lower than a coefficient of friction of the elastic layer.

4. The robot according to claim 2 , wherein the body frame further comprises a plurality of pillars configured to support the top cover, and
wherein the plurality of pillars is positioned at two sides of the control rack.

5. The robot according to claim 4 , wherein at least a portion of the plurality of pillars guide front and rear movement of the control rack.

6. The robot according to claim 2 , wherein the body frame further comprises a separation prevention frame configured to support the top cover, and
wherein the separation prevention frame is positioned behind the control rack and in front of the opening.

7. The robot according to claim 6 , wherein the separation prevention frame is coupled to the top cover of the body frame by a fastener.

8. The robot according to claim 2 , wherein the inner plate is provided with a stepped portion that is stepped downward so as to be spaced apart from a bottom surface of the control rack.

9. The robot according to claim 8 , further comprising:
a blowing fan configured to generate an air flow passing between the stepped portion and the control rack, the blowing fan being positioned in front of the control rack; and
an air guide configured to guide the air flow generated by the blowing fan to a discharge port defined in the housing.

10. The robot according to claim 9 , wherein a front surface of the housing is provided with a recessed portion,
wherein a lidar is disposed in the recessed portion of the front surface of the housing, and
wherein the discharge port is defined on an upper surface of the recessed portion.

11. The robot according to claim 1 , wherein the control rack comprises:
a rack housing having an opened back surface;
a plurality of substrates disposed inside the rack housing; and
a coupling bracket coupling a rear end of the rack housing to the body frame.

12. The robot according to claim 11 , wherein the rack housing includes a through hole, and
wherein the control rack further comprises a heat dissipation fan coupled to the rack housing and configured to blow air to the plurality of substrates through the through hole of the rack housing.

13. The robot according to claim 11 , further comprising a damper provided between the coupling bracket and the body frame.

14. The robot according to claim 1 , further comprising a battery mounted to the body frame,
wherein the battery is positioned above the driving motor and below the control rack.

15. A robot, comprising:
a housing having a rear side;
a base disposed inside the housing;
a driving motor disposed on the base;
a driving wheel configured to be rotated by the driving motor and protruding downward from the housing;
an inner plate spaced upward from the base;
a top cover spaced upward from the inner plate;
a battery disposed between the base and the inner plate;
a control rack disposed between the inner plate and the top cover;
an opening positioned at a rear side of the control rack; and
a back cover configured to cover the opening,
wherein the control rack is removable through the opening.

16. The robot according to claim 15 , further comprising:
a plurality of pillars, each of the plurality of pillars having an upper end coupled to the top cover and a lower end coupled to the base or the inner plate,
wherein the plurality of pillars is positioned outside the control rack or the battery in a horizontal direction.

17. The robot according to claim 15 , wherein the inner plate is provided with a stepped portion that is stepped downward so as to be spaced apart from a bottom surface of the control rack, and
wherein an upper surface of the battery is adjacent to the stepped portion.

18. The robot according to claim 15 , wherein an upper surface of the base includes a first pad contacting the battery,
wherein an upper surface of the inner plate includes a second pad contacting the control rack, and
wherein each of the first pad and the second pad comprises:
an elastic layer having an elastic material; and
an insulator layer positioned above the elastic layer, the insulator layer having a coefficient of friction lower than a coefficient of friction of the elastic layer.

19. The robot according to claim 15 , further comprising:
a reinforcing frame configured to support the inner plate and positioned at a rear side of the battery; and
a separation prevention frame configured to support the top cover,
wherein the separation prevention frame is positioned behind the control rack and in front of the opening.

20. The robot according to claim 15 , wherein the control rack comprises:
a rack housing having an opened back surface;
a plurality of substrates disposed inside the rack housing; and
a coupling bracket coupling a rear end of the rack housing to the body frame.

Assignees

• Lg Electronics Inc

Inventors

• Lee Iljae
• Jung Chungin
• Kang Hoseong
• Kim Taiwoo
• Cho Sunil
• Han Sunghee
• Park Seungjong
• Kim Jaeyoung

Classifications

• B25J11/008 Primary

  Manipulators for service tasks · CPC title

• B25J19/022

  using lasers · CPC title

• B25J19/0075

  Means for protecting the manipulator from its environment or vice versa · CPC title

• B25J9/0009

  Constructional details, e.g. manipulator supports, bases · CPC title

• B25J9/161

  Hardware, e.g. neural networks, fuzzy logic, interfaces, processor · CPC title