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KR-20260063602-A - Emergency power supply unit and power control system for robotic devices including the same

KR20260063602AKR 20260063602 AKR20260063602 AKR 20260063602AKR-20260063602-A

Abstract

The present invention relates to an emergency power supply device and a power control system for a robot device including the same. More specifically, the invention relates to an emergency power supply device and a power control system for a robot device including the same, wherein when a main power supply device supplying power to a motor unit of a robot device experiences a malfunction due to various causes and the power supply is interrupted, the emergency power is supplied to enable stable robot operation or the cessation of robot operation and the storage of operation information, and the stability of the battery cell is ensured by providing a back EMF prevention unit that can be transmitted from the motor unit to the battery cell during the emergency power supply. To this end, the present invention relates to an emergency power supply device that detects a power supply interruption and supplies emergency power when power supply from a main power supply device supplying power to a robot device is interrupted, wherein the emergency power supply device comprises: a housing; a plurality of battery cells accommodated within the housing and capable of storing and charging emergency power; an insulating tube that is closely disposed on the outer side of the battery cells in a manner that surrounds the upper and lower sides of the plurality of battery cells; a power connection line that is discharged from the inside to the outside through an incision in the housing and supplies power from the plurality of battery cells to the outside or receives power from the outside to charge the battery cells; a connector, one end of which is connected to a robot control device and the other end of which is connected to the power connection line; and a back EMF prevention unit provided between the battery cells and the power connection line to block back EMF transmitted from the robot control device.

Inventors

  • 표석봉

Assignees

  • 주식회사 울트라이노베이션

Dates

Publication Date
20260507
Application Date
20241030

Claims (5)

  1. In an emergency power supply that detects a power supply interruption and supplies emergency power when power supply from a main power supply (1100) that supplies power to a robot device (2000) is interrupted, The above emergency power supply unit (1000) is, Housing (100); A plurality of battery cells (200) that are housed within the above housing (100) and capable of storing and charging emergency power; An insulating tube (300) that is closely positioned on the outer side of the battery cell in a manner that surrounds the upper and lower sides of the plurality of battery cells (200); A power connection line (400) that is discharged from the inside to the outside through an incision in the housing (100) and supplies power from the plurality of battery cells (200) to the outside or receives power from the outside to charge the battery cells (200); A connector (500) having one side connected to a robot device (2000) and the other side connected to the power connection line (400); and A back EMF prevention unit (600) provided between the battery cell (200) and the power connection line (400) to block back EMF transmitted from the robot device (2000); comprising Emergency power supply.
  2. In paragraph 1, The above housing (100) is, A receiving housing (110) forming a receiving space to accommodate the plurality of battery cells (200) and A coupling cover (120) coupled to the above receiving housing (110) to accommodate a battery cell (200); comprising Emergency power supply.
  3. In paragraph 2, On the inner wall surface of the above receiving housing (110), A plurality of reinforcing bars (111) protruding inward to increase strength are formed in the transverse and longitudinal directions. Emergency power supply.
  4. A motor part (1300) of a robot device (2000) that is driven by being connected to a main power supply (1100); A power conversion unit (1400) including a DC-link capacitor and an inverter, which is connected between the main power supply unit (1100) and the motor unit (1300) to generate an alternating current for driving the motor unit (1300); An emergency power supply device (1000) having the features of claim 1, connected to the power conversion unit (1400) by a switch (S) to receive and store power from the power conversion unit (1400) or to supply power to the power conversion unit (1400); and A control unit (1500) that controls the switch (S) to connect the emergency power supply unit (1000) and the power conversion unit (1400) when the power supply of the main power supply unit (1100) is interrupted; comprising Power control system of a robot device including an emergency power supply.
  5. In paragraph 4, A converter (1600) is further included, which is provided between the switch (S) and the power conversion unit (1400) and generates a voltage required for the safe stop operation of the motor unit (1300) and the storage of operation information of the robot device using the power of the battery cell (200) of the emergency power supply unit (1000). Power control system of a robot device including an emergency power supply.

Description

Emergency power supply unit and power control system for robotic devices including the same The present invention relates to an emergency power supply device and a power control system for a robot device including the same. More specifically, the invention relates to an emergency power supply device and a power control system for a robot device including the same, wherein when a main power supply device supplying power to a motor unit of a robot device experiences a malfunction due to various causes and the power supply is interrupted, the emergency power is supplied to enable stable robot operation or the cessation of robot operation and the storage of operation information, and the stability of the battery cell is ensured by providing a back EMF prevention unit that can be transmitted from the motor unit to the battery cell during the emergency power supply. General industrial robots are widely used in production lines and other environments to perform precise tasks without human intervention or supervision. For example, robots used in the automotive industry perform various tasks such as transporting car bodies or welding. Unlike general industrial robots, intelligent service robots perform tasks within spaces where people reside and work. In particular, collaborative robots that interact with humans require a stable power supply. As such, when a collaborative robot operating with humans makes an emergency stop due to a sudden power failure during operation, the motor stops in a situation where safety is not ensured, which can cause harm to the person working with them. Examples of such sudden power failures may include damage to power lines, power outages, instability of system power (voltage/frequency fluctuations), and disconnection of power cords due to any external circumstances. In the event that a power failure occurs during the operation of such a robot or collaborative robot, it may be impossible to drive the robot to a safe area during emergency operation using only the energy from a normal power supply. For example, when a power failure occurs, there is no alternative other than stopping the motor, so situations may arise where people are harmed, such as a person's body part getting caught by the robot or a heavy object being suspended in the air. Therefore, it is required to configure the power supply so that the robot can be emergency operated to a safe area or operation in the event of a power failure. FIG. 1 is a perspective view showing a schematic view of an emergency power supply device according to an embodiment of the present invention. Figure 2 is an exploded perspective view of Figure 1. FIG. 3 is a drawing showing the internal view of a receiving housing according to an embodiment of the present invention. FIG. 4 is a block diagram showing the internal configuration of an emergency power supply device according to an embodiment of the present invention. FIG. 5 is a block diagram showing the internal configuration of a power control system of a robot device according to an embodiment of the present invention. The advantages and features of the present invention and the methods for achieving them will become clear by referring to the embodiments described below in detail together with the accompanying drawings. However, the present invention is not limited to the embodiments disclosed below but may be implemented in various different forms. These embodiments are provided merely to ensure that the disclosure of the present invention is complete and to fully inform those skilled in the art of the scope of the present invention, and the present invention is defined only by the scope of the claims. The terms used herein are for describing the embodiments and are not intended to limit the invention. In this specification, the singular form includes the plural form unless specifically stated otherwise in the text. As used herein, "comprises" and/or "comprising" do not exclude the presence or addition of one or more other components in addition to the components mentioned. Throughout the specification, the same reference numerals refer to the same components, and "and/or" includes each of the mentioned components and all combinations of one or more. Although "first," "second," etc. are used to describe various components, these components are not limited by these terms. These terms are used merely to distinguish one component from another. Therefore, it goes without saying that the first component mentioned below may be the second component within the technical scope of the present invention. Unless otherwise defined, all terms used herein (including technical and scientific terms) may be used in a meaning commonly understood by those skilled in the art to which the present invention pertains. Additionally, terms defined in commonly used dictionaries are not to be interpreted ideally or excessively unless explicitly and specifically defined otherwise. Spatially relative terms such as "below