Spare battery box for electric cylinder

Abstract

A backup battery box for an electric cylinder is assembled with a control box and electrically connected to drive the electric cylinder, including: a charging and discharging device and a rechargeable battery. The charge and discharge device includes: a protection unit, a power conversion unit, a voltage detection unit, a control unit, a discharge unit, a display unit and a switch unit. The rechargeable battery is electrically connected with the charging and discharging device. When the start switch of the switch unit is pressed, the power of the rechargeable battery is transmitted to the control box by the charging and discharging device. When the power-off switch of the switch unit is pressed, the charging and discharging device is in a non-power supply mode, so that the power of the backup battery box is not exhausted.

Description

Technical field [0001] The invention relates to a control system, in particular to a backup battery box that provides power to a control box to drive an electric cylinder. Background technique [0002] It is known that an electric cylinder control device is installed at the bottom of the beds currently used in hospitals. After the electric cylinder is driven by the control box, the electric cylinder can adjust the height of the bed and the angle of the mattress, so that the user can compare Lie comfortably on the hospital bed. [0003] The electric cylinder control equipment on the hospital bed is composed of a control box, a spare battery box and an electric cylinder. The electric cylinder is electrically connected to the control box, and the backup battery box is assembled and electrically connected to the control box. After the backup battery box is fully charged, the backup battery box provides the operating power required by the control box. When the box receives the operati...

AI Technical Summary

Problems solved by technology

[0004] After the spare battery box of the electric cylinder is fully charged, the electric cylinder equipment is stored or installed on the hospital bed for a period of time, and after the hospital bed or the electric cylinder equipment is transported to the hospital for installation, the power switch is pressed for testing or use. The control box cannot control the action of the electric cylinder, the main reason is that the power of the rechargeable battery itself has been exhausted

Because the charging and discharging device inside the spare battery box and the components used on the circuit board of the control box all have a specific internal resistance value, which will cause the rechargeable battery to form an invisible discharge state, so the storage time of the electric cylinder equipment Or the transportation time is too long, which will easily cause the power of the rechargeable battery to run out

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