Mobile X-ray apparatus including a battery management system

• US 9,992,853 B2
• Filed: 12/28/2016
• Issued: 06/05/2018
• Est. Priority Date: 08/03/2016
• Status: Active Grant

• Current Assignee: Samsung Electronics Co. Ltd.
• Original Assignee: Samsung Electronics Co. Ltd.
• Inventors: Kim, Myeong-je
• Primary Examiner(s): Ho, Allen C.
• Application Number:
  US15/391,957
• Publication Number:
  US 20180042095A1
• Time in Patent Office: 524 Days
• Field of Search: 378101-103
• CPC Class Codes: A61B 6/42 Arrangements for detecting radiation specially adapted for radiation diagnosis
• CPC Class Codes: A61B 6/4208 characterised by using a particular type of detector
• CPC Class Codes: A61B 6/4233 using matrix detectors
• CPC Class Codes: A61B 6/4283 characterised by a detector unit being housed in a cassette
• CPC Class Codes: A61B 6/44 Constructional features of apparatus for radiation diagnosis
• CPC Class Codes: A61B 6/4405 the apparatus being movable or portable, e.g. handheld or mounted on a trolley
• CPC Class Codes: A61B 6/4429 related to the mounting of source units and detector units
• CPC Class Codes: A61B 6/4435 the source unit and the detector unit being coupled by a rigid structure
• CPC Class Codes: A61B 6/4452 the source unit and the detector unit being able to move relative to each other
• CPC Class Codes: A61B 6/56 Details of data transmission or power supply, e.g. use of slip rings
• CPC Class Codes: H05G 1/08 Electrical details
• CPC Class Codes: H05G 1/10 Power supply arrangements for feeding the X-ray tube supply circuits with converters in general H02M; supply circuits for emitters and amplifiers H04B1/16 - H04B1/1623
• CPC Class Codes: H05G 1/12 with dc or rectified single-phase ac or double-phase
• CPC Class Codes: H05G 1/26 Measuring, controlling or protecting measuring X-ray radiation G01T
• CPC Class Codes: H05G 1/265 Measurements of current, voltage or power
• CPC Class Codes: H05G 1/30 Controlling
• CPC Class Codes: H05G 1/32 Supply voltage of the X-ray apparatus or tube
• CPC Class Codes: H05G 1/34 Anode current, heater current or heater voltage of X-ray tube
• CPC Class Codes: H05G 1/36 Temperature of anode; Brightness of image power electrical temperature regulating in general G05D23/19
• CPC Class Codes: H05G 1/38 Exposure time time switches in general H01H43/00 and subgroups
• CPC Class Codes: H05G 1/54 : Protecting or lifetime predictionoverload protection combined with control H05G1/46
• CPC Class Codes: H05G 1/56 : Switching-on; Switching-off

Abstract

Provided is a mobile X-ray apparatus including: an X-ray radiator configured to emit X-rays; a battery configured to supply power to the X-ray radiator; a charger configured to charge the battery; a battery management system (BMS) configured to receive power from the battery or the charger and output a first signal based on a state of the battery; and a first switch configured to be turned off according to the first signal to prevent power from being supplied to the battery management system (BMS), wherein the first switch is further configured to be turned on by power supplied from the charger when the battery management system (BMS) is shut down.

Claims

1. A mobile X-ray apparatus comprising:

an X-ray radiator configured to generate and emit X-rays;

a battery configured to supply power to the X-ray radiator;

a charger configured to charge the battery;

a battery management system, comprising a battery stack monitor circuit, configured to determine a state of the battery by detecting at least one of a voltage and a temperature of the battery;

a direct current DC-to-DC converter configured to convert the power supplied by the battery into a driving power for driving the battery management system; and

a first switch configured to prevent power from being supplied to the DC-to-DC converter based on a control of the battery management system,

wherein the battery management system is further configured to be shut down when the first switch is turned off, and the first switch is further configured to be turned on by power supplied from the charger when the battery management system is shut down.

2. The mobile X-ray apparatus of claim 1, further comprising a second switch configured to be turned on or off based on the control of the battery management system,

wherein the first switch is further configured to be turned on as the second switch is turned on.

3. The mobile X-ray apparatus of claim 2, wherein the battery management system is further configured to output a driving power for operating the second switch.

4. The mobile X-ray apparatus of claim 2, wherein the second switch is further configured to be turned off when the battery management system is shut down.

5. The mobile X-ray apparatus of claim 1, wherein the battery management system is further configured to output a signal, and

wherein the first switch is further configured to be turned on by the signal.

6. The mobile X-ray apparatus of claim 1, further comprising a third switch configured to be turned on by the power supplied by the charger when the battery management system is shut down.

7. The mobile X-ray apparatus of claim 6, further comprising a fourth switch configured to remain in an on-state in the absence of a driving power and have one terminal connected to the third switch to control the third switch.

8. The mobile X-ray apparatus of claim 7, wherein the battery management system is further configured to output a driving power for operating the fourth switch.

9. The mobile X-ray apparatus of claim 1, further comprising a discharge FET configured to be turned on or off based on a signal output from the battery management system and to be turned on when the battery is discharged and be turned off when the battery is charged.

10. The mobile X-ray apparatus of claim 9, wherein the discharge FET is further configured to, when turned off, form a current path from a minus terminal of the battery to the charger.

11. The mobile X-ray apparatus of claim 1, further comprising a charge FET configured to be turned on or off based on a signal output from the battery management system and to be turned on when the battery is charged and be turned off when the battery is discharged.

12. The mobile X-ray apparatus of claim 11, wherein the charge FET is further configured to, when turned off, form a current path from the X-ray radiator to a minus terminal of the battery.

13. The mobile X-ray apparatus of claim 1, wherein the battery is a lithium ion battery.

14. A mobile X-ray apparatus comprising:

an X-ray radiator configured to emit X-rays;

a battery configured to supply power to the X-ray radiator;

a battery management system comprising a battery stack monitor circuit that is configured to;

monitor a voltage or a current of the battery, and

monitor a temperature of the battery,

wherein the battery management system is further configured to be shut down based on at least one of the monitored voltage, current, or temperature; and

a charger configured to supply power to the battery and the battery management system,

wherein the battery management system is further configured to be woken up by the power that is supplied from the charger when the battery management system is shut down.

15. A mobile X-ray apparatus comprising:

an X-ray radiator configured to emit X-rays;

a battery configured to supply power to the X-ray radiator;

a battery management system, comprising a battery stack monitor circuit, configured to be shut down based on a state of the battery;

a charger configured to supply power to the battery and the battery management system; and

a physical switch, configured to be operated h a user,

wherein the battery management system is further configured to be woken up by operation of the physical switch when the battery management system is shut down, and

wherein the battery management system is further configured to be woken up by the power that is supplied from the charger when the battery management system is shut down.