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Charging circuit, medical facility and charging method

A technology of medical equipment and charging circuit, which is applied in the field of charging circuit of medical equipment, can solve the problems of slow system charging speed, fan noise, difficult to support working time, etc., and achieve the effect of ensuring service life and meeting the requirements of charging time

Active Publication Date: 2013-10-23
SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD +1
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  • Summary
  • Abstract
  • Description
  • Claims
  • Application Information

AI Technical Summary

Problems solved by technology

If a fan is used for forced cooling, it will cause the noise of the fan and affect the normal rest of the patient.
[0004] 2. The charging speed of the system is too slow
Too long charging time will cause the battery to not be fully charged when the battery needs to be used for power supply, and it is difficult to support a long working time
[0005] Therefore, most of the actual monitor equipment will design a compromise solution, using a medium-sized charging current to charge the system, but it still cannot perfectly solve the two drawbacks mentioned above.

Method used

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  • Charging circuit, medical facility and charging method
  • Charging circuit, medical facility and charging method
  • Charging circuit, medical facility and charging method

Examples

Experimental program
Comparison scheme
Effect test

Embodiment 1

[0031] Please refer to figure 1 , directly control the charging unit through the control unit, and change the magnitude of the charging current, which belongs to open-loop control. Such as manually arbitrarily setting the size of the charging current. The charging unit adjusts the charging current according to the set value.

[0032] like figure 2 As shown, the charging unit includes a voltage supply unit and a charging resistor. The voltage supply unit DC provides a charging voltage for charging the battery. The positive and negative terminals of the voltage supply unit DC are respectively applied to the positive and negative poles of the battery BAT. The charging resistor R1 is connected in series Between said voltage supply unit DC and a battery BAT. The charging resistor R1 is an adjustable potentiometer, and the control unit is the adjustment terminal of the adjustable potentiometer. First adjust the voltage supply unit DC to a suitable voltage value, and then adjust ...

Embodiment 2

[0035] In order to enable the monitor to automatically switch the charging current according to its own state parameters, the current status or operating temperature of the monitor device can be detected through the detection unit, the detection result is compared with the preset value, and the control unit is notified, and then controlled by the control unit The charging unit is a closed-loop control.

[0036] Please refer to image 3 , the charging circuit includes a charging unit, a control unit, a first detection unit and a judgment unit, and the judgment unit is connected to the first detection unit and the control unit respectively, and the first detection unit is used to detect the status parameters of the monitor, and the status parameters of the monitor can be monitoring Any one or a combination of at least two of the working state of the instrument, the temperature and the remaining battery power, the working state can be divided into a working mode and a standby mod...

Embodiment 3

[0047] refer to Figure 5 , On the basis of the second embodiment, the closed-loop control of the charging unit is added, which belongs to the double closed-loop control. Due to individual differences in the charging unit, the same control value may output different charging currents, which will affect the charging effect. Therefore, in this embodiment, the charging circuit includes a charging unit, a control unit, a first detection unit, a judgment unit and a second detection unit, and the judgment unit is connected to the control unit, the first detection unit and the second detection unit respectively. The first detection unit is used to detect the status parameters of the monitor, and is used to output the detection result to the judging unit. The second detection unit is used to detect the actual charging current, the actual charging current can be obtained by collecting the current flowing through the charging resistor, comparing the collected charging current with the ...

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Abstract

The invention discloses a medical facility and a charging circuit. The charging circuit comprises a charging unit and a control unit, wherein the charging unit is used for supplying charging current to a battery; and the control unit is connected with the charging unit for controlling the charging current supplied by the charging unit. In the invention, different charging current is selected to charge the battery, and a rapid-slow combined charging manner is adopted, thereby satisfying the requirements of charging time, controlling the heating quantity of the whole monitoring facility within a certain range and ensuring the service life of the monitoring facility.

Description

【Technical field】 [0001] The invention relates to medical equipment, in particular to a charging circuit for medical equipment. 【Background technique】 [0002] At present, many medical devices are required to be mobile and able to rely on battery power to work for a long time in an environment without mains power. This requires medical devices to have a set of flexible battery charging management circuits, for example, monitor equipment. Battery charging generates heat, and heat is the direct cause of electronic device failure. How to control the thermal problem of medical equipment charging is the key issue for the system to run safely and reliably for a long time. At present, monitor equipment adopts a single charging current mode in terms of battery charging. There are two disadvantages of this charging method: [0003] 1. The system generates too much heat. If the monitor device has a faster charging speed, it can be guaranteed that it will complete the charging proc...

Claims

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Application Information

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Patent Type & Authority Patents(China)
IPC IPC(8): H02J7/00H01M10/44
CPCY02E60/12Y02E60/10
Inventor 刘铁柱侯建国赵亮
Owner SHENZHEN MINDRAY BIO MEDICAL ELECTRONICS CO LTD
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