CN113783248B - Portable medical equipment maintenance device control circuit - Google Patents

Portable medical equipment maintenance device control circuit Download PDF

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Publication number
CN113783248B
CN113783248B CN202110938631.8A CN202110938631A CN113783248B CN 113783248 B CN113783248 B CN 113783248B CN 202110938631 A CN202110938631 A CN 202110938631A CN 113783248 B CN113783248 B CN 113783248B
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China
Prior art keywords
resistor
triode
cathode
control circuit
diode
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CN202110938631.8A
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Chinese (zh)
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CN113783248A (en
Inventor
姚仕杰
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Shenzhen Kawo Technology Co ltd
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Shenzhen Kawo Technology Co ltd
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Classifications

    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0047Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with monitoring or indicating devices or circuits
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21SNON-PORTABLE LIGHTING DEVICES; SYSTEMS THEREOF; VEHICLE LIGHTING DEVICES SPECIALLY ADAPTED FOR VEHICLE EXTERIORS
    • F21S9/00Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply
    • F21S9/02Lighting devices with a built-in power supply; Systems employing lighting devices with a built-in power supply the power supply being a battery or accumulator
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21VFUNCTIONAL FEATURES OR DETAILS OF LIGHTING DEVICES OR SYSTEMS THEREOF; STRUCTURAL COMBINATIONS OF LIGHTING DEVICES WITH OTHER ARTICLES, NOT OTHERWISE PROVIDED FOR
    • F21V33/00Structural combinations of lighting devices with other articles, not otherwise provided for
    • F21V33/0064Health, life-saving or fire-fighting equipment
    • F21V33/0068Medical equipment
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H3/00Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection
    • H02H3/08Emergency protective circuit arrangements for automatic disconnection directly responsive to an undesired change from normal electric working condition with or without subsequent reconnection ; integrated protection responsive to excess current
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02HEMERGENCY PROTECTIVE CIRCUIT ARRANGEMENTS
    • H02H7/00Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions
    • H02H7/20Emergency protective circuit arrangements specially adapted for specific types of electric machines or apparatus or for sectionalised protection of cable or line systems, and effecting automatic switching in the event of an undesired change from normal working conditions for electronic equipment
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • HELECTRICITY
    • H02GENERATION; CONVERSION OR DISTRIBUTION OF ELECTRIC POWER
    • H02JCIRCUIT ARRANGEMENTS OR SYSTEMS FOR SUPPLYING OR DISTRIBUTING ELECTRIC POWER; SYSTEMS FOR STORING ELECTRIC ENERGY
    • H02J7/00Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries
    • H02J7/0029Circuit arrangements for charging or depolarising batteries or for supplying loads from batteries with safety or protection devices or circuits
    • HELECTRICITY
    • H05ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
    • H05BELECTRIC HEATING; ELECTRIC LIGHT SOURCES NOT OTHERWISE PROVIDED FOR; CIRCUIT ARRANGEMENTS FOR ELECTRIC LIGHT SOURCES, IN GENERAL
    • H05B1/00Details of electric heating devices
    • H05B1/02Automatic switching arrangements specially adapted to apparatus ; Control of heating devices
    • H05B1/0227Applications
    • H05B1/023Industrial applications
    • H05B1/025For medical applications
    • FMECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F21LIGHTING
    • F21YINDEXING SCHEME ASSOCIATED WITH SUBCLASSES F21K, F21L, F21S and F21V, RELATING TO THE FORM OR THE KIND OF THE LIGHT SOURCES OR OF THE COLOUR OF THE LIGHT EMITTED
    • F21Y2115/00Light-generating elements of semiconductor light sources
    • F21Y2115/10Light-emitting diodes [LED]

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  • Engineering & Computer Science (AREA)
  • Power Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Health & Medical Sciences (AREA)
  • Biomedical Technology (AREA)
  • Circuit Arrangement For Electric Light Sources In General (AREA)

Abstract

The invention relates to the field of medical equipment, in particular to a control circuit of a portable medical equipment maintenance device. The technical problems of the invention are as follows: a portable medical equipment maintenance device control circuit is provided that does not delay patient treatment. A control circuit of a portable medical equipment maintenance device comprises a power supply circuit, a charging protection circuit, a first indicator light, a storage battery and the like; the output end of the charging protection circuit is connected with the first indicator lamp, and the output end of the charging protection circuit is connected with the storage battery. The invention supplies power to the medical equipment through the power supply circuit, so that the medical equipment can work normally, the treatment of the patient can be continued, the treatment time of the patient can not be delayed, the LED illuminating lamp can be lightened to provide illumination, the medical equipment is convenient to maintain, the liquid medicine can be heated through the heater, and the discomfort of the patient caused by cool liquid medicine is avoided.

Description

Portable medical equipment maintenance device control circuit
Technical Field
The invention relates to the field of medical equipment, in particular to a control circuit of a portable medical equipment maintenance device.
Background
Medical equipment plays an important role in the medical industry, can treat and check patients, has very big help to patient's rehabilitation, and along with development of science and technology, medical equipment is also more advanced, and the development of medical treatment depends on medical equipment's development to a great extent, because medical equipment needs long-time operation, and inside temperature is higher, easy ageing, easy trouble, and medical equipment is after the trouble, need close to maintain, can delay patient's treatment like this.
The control circuit of the portable medical equipment maintenance device is designed to solve the existing problems without delaying treatment of patients.
Disclosure of Invention
In order to overcome the defect that the medical equipment needs to be closed for maintenance after failure, and thus the treatment of a patient is delayed, the technical problem of the invention is that: a portable medical equipment maintenance device control circuit is provided that does not delay patient treatment.
The technical implementation scheme of the invention is as follows: the utility model provides a portable medical equipment maintains device control circuit, includes power supply circuit, charge protection circuit, first pilot lamp, battery, second pilot lamp, undervoltage protection control circuit, third pilot lamp and USB circuit, charge protection circuit's output and first pilot lamp are connected, charge protection circuit's output and battery are connected, battery and second pilot lamp are connected, USB circuit's input and battery are connected, battery and undervoltage protection control circuit's input are connected, undervoltage protection control circuit's output and third pilot lamp are connected, power supply circuit is charge protection circuit and first pilot lamp power supply, the battery is second pilot lamp, undervoltage protection control circuit, third pilot lamp and USB circuit power supply.
In a preferred embodiment of the invention, the LED lamp further comprises a first electronic switch and an LED lamp, wherein the output end of the undervoltage protection control circuit is connected with the first electronic switch, the first electronic switch is connected with the LED lamp, and the storage battery supplies power for the first electronic switch and the LED lamp.
In a preferred embodiment of the invention, the low-voltage protection circuit further comprises a first potentiometer, a voltage amplification comparison circuit, a temperature sensor and a heater, wherein the output end of the low-voltage protection control circuit is connected with the input end of the voltage amplification comparison circuit, the output end of the voltage amplification comparison circuit is connected with the heater, the first potentiometer and the temperature sensor are both connected with the input end of the voltage amplification comparison circuit, and the storage battery supplies power for the first potentiometer, the voltage amplification comparison circuit, the temperature sensor and the heater.
In a preferred embodiment of the present invention, the charge protection circuit includes a FUSE1, a rectifier bridge D4, a resistor R1, a resistor R2, a resistor R5, a resistor R7, a capacitor C1, a diode D3, a diode D5, a light emitting diode VD1, a battery BT1, a triode Q2, an electrolytic capacitor EC1, an electrolytic capacitor EC3, a thyristor Q4 and a thyristor Q6, the 4 pin of the rectifier bridge D4 is grounded, the 3 pin of the rectifier bridge D4 is connected to the ac N terminal, the 1-pin serial capacitor C1 of the rectifier bridge D4 and the FUSE1, the other end of the FUSE1 is connected with an alternating current L end, the 2-pin serial diode D1 of the rectifier bridge D4 is grounded, the 2-pin serial electrolytic capacitor EC1 of the rectifier bridge D4 is grounded, the 2-pin of the rectifier bridge D4 is connected with one end of a resistor R1, the other end of the resistor R1 is connected with +12V, the 2-pin of the rectifier bridge D4 is connected with a collector electrode of a triode Q2, the emitter of the triode Q2 is connected with the electrolytic capacitor EC3 and the control electrode of the silicon controlled rectifier Q6 in series, the cathode of the silicon controlled rectifier Q6 is grounded, the anode of the silicon controlled rectifier Q6 is connected with the anode of the light emitting diode VD1, the resistor R7 and the diode D3 in series, the cathode of the diode D3 is connected with +12V, the emitter of the triode Q2 is connected with the anode of the silicon controlled rectifier Q4, the cathode of the silicon controlled rectifier Q4 is grounded, the control electrode of the silicon controlled rectifier Q4 is connected with the cathode of the diode D5, the anode of the diode D5 is connected with the base of the triode Q2, the base of the triode Q2 is connected with one end of the resistor R5, the other end of the resistor R5 is connected with the series intermediate point of the resistor R7 and the diode D3, one end of the battery BT1 is connected with +12V, and the other end of the battery BT1 is connected with the series intermediate point of the light emitting diode VD1 and the resistor R7.
In a preferred embodiment of the present invention, the under-voltage protection control circuit includes a triode Q1, a triode Q3, a thyristor Q5, a thyristor Q7, a light emitting diode VD2, a light emitting diode VD3, a resistor R4, a resistor R6, a resistor R8, an electrolytic capacitor EC4 and a diode D2, wherein the diode D2 and the resistor R6 are connected in series, a cathode of the diode D2 is connected with +12v, the other end of the resistor R6 is grounded, an emitter of the triode Q1 is connected with +12v, a base of the triode Q1 is connected with one end of the resistor R3, the other end of the resistor R3 is connected with a series intermediate point between the diode D2 and the resistor R6, a collector of the triode Q1 is connected with an anode of the light emitting diode VD2, a cathode of the light emitting diode VD2 is connected with a cathode of the thyristor Q7, an anode of the thyristor Q7 is grounded, a collector of the triode Q2 is connected with the electrolytic capacitor Q5, a collector of the triode Q5 is connected with the cathode of the thyristor Q5, and one end of the triode Q4 is connected with the cathode of the thyristor Q3, and the other end of the triode Q4 is connected with the cathode of the thyristor Q3.
In a preferred embodiment of the present invention, the first electronic switch includes a transistor Q8, a transistor Q10, a transistor Q11, a resistor R10, a resistor R12, a resistor R14, a resistor R18, a resistor R19, a resistor R20, an electrolytic capacitor EC5, and a light touch switch SW1, wherein an emitter of the transistor Q8 is connected to +12v, a base of the transistor Q8 is connected to one end of the resistor R14, the other end of the resistor R14 is connected to a collector of the transistor Q10, an emitter of the transistor Q10 is grounded, a collector of the transistor Q10 is connected to one end of the resistor R12, the other end of the resistor R12 is connected to +12v, a base of the transistor Q10 is connected to the resistor R18 and the resistor R20 in series, the other end of the resistor R20 is grounded, one end of the light touch switch SW1 is connected to +12v, the other end of the light touch switch SW1 is connected to a series intermediate point of the resistor R18 and the resistor R20, a base of the transistor Q10 is connected to the base of the transistor Q12, the other end of the transistor Q12 is connected to the resistor 12, the base of the transistor Q12 is connected to the collector of the resistor 12 is connected to the resistor 12, the other end of the resistor 12 is connected to the resistor 12 and the resistor 12 is connected to the resistor 12, the resistor is connected to the other end of the resistor 12 is connected to the resistor 12.
In a preferred embodiment of the present invention, the LED lighting lamp is formed by connecting three groups of LEDs connected in series in parallel, forming two common terminals, the common terminal formed by the cathodes of the LEDs being grounded, the common terminal formed by the anodes of the LEDs being connected to the other end of the resistor R10.
In a preferred embodiment of the present invention, the voltage amplification comparison circuit includes an operational amplifier LM393A-U1, a triode Q9, a relay RL1, a heater PCT1, a light emitting diode VD13, a diode D6, a resistor R9, a resistor R11, a resistor R15, a resistor R16, a resistor R17, and a temperature sensor RT1, the 4 pin of the operational amplifier LM393A-U1 is grounded, the 8 pin of the operational amplifier LM393A-U1 is connected to +1v, the 7 pin of the operational amplifier LM393A-U1 is connected in series with a base of a resistor R11 and a triode Q9, an emitter of the triode Q9 is connected to +1v, a base of the triode Q9 is connected to one end of the resistor R9, the other end of the resistor R9 is connected to +1v, a series resistor R15 of the triode Q9 is connected to an anode of the diode VD13, the cathode of the diode Q9 is grounded, the diode D6 is connected to the diode D6 of the triode Q9 is connected to the collector of the diode V, the other end of the triode Q1 is connected to the cathode of the resistor Q1 is connected to the temperature sensor RT1, the other end of the triode Q1 is connected to the other end of the resistor RL1 is connected to the resistor Q1 is connected to the other end of the resistor Q1 is connected to the temperature sensor RT1, and the other end of the resistor RL1 is connected to the resistor Q1 is connected to the other end of the resistor Q1 is connected to the temperature sensor is connected to the other end of the resistor is connected to the end to the resistor is connected to the other end to the resistor is 3 is to the resistor is to the end to the cathode.
In a preferred embodiment of the present invention, the first potentiometer is a potentiometer VR1, the other end of the resistor R16 is connected to one end of the potentiometer VR1, the other end of the potentiometer VR1 is connected to +12v, and the adjustable end of the potentiometer VR1 is connected to the 6 pins of the operational amplifier LM 393A-U1.
In a preferred embodiment of the present invention, the operational amplifier is of model LM393A.
The invention has the following advantages:
1. the medical equipment is powered by the power supply circuit, so that the medical equipment works normally, the patient can be continuously treated, and the treatment time of the patient is not delayed.
2. The LED illuminating lamp is lighted to provide illumination, so that the medical equipment is convenient to maintain.
3. The heater can heat the liquid medicine, so that the discomfort of patients caused by cool liquid medicine is avoided.
Drawings
Fig. 1 is a circuit block diagram of the present invention.
Fig. 2 is a schematic circuit diagram of the present invention.
Wherein: the power supply circuit comprises a 1-power supply circuit, a 2-charging protection circuit, a 3-first indicator lamp, a 4-storage battery, a 5-second indicator lamp, a 6-undervoltage protection control circuit, a 7-first electronic switch, an 8-LED illuminating lamp, a 9-third indicator lamp, a 10-first potentiometer, a 11-voltage amplification comparison circuit, a 12-temperature sensor, a 13-USB circuit and a 14-heater.
Detailed Description
The invention will be further illustrated by the following description of specific examples, which are given by the terms such as: setting, mounting, connecting are to be construed broadly, and may be, for example, fixed, removable, or integrally connected; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium, and can be communication between two elements. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.
Example 1
The utility model provides a portable medical equipment maintains device control circuit, as shown in fig. 1, including power supply circuit 1, charge protection circuit 2, first pilot lamp 3, battery 4, second pilot lamp 5, undervoltage protection control circuit 6, third pilot lamp 9 and USB circuit 13, charge protection circuit 2's output and first pilot lamp 3 are connected, charge protection circuit 2's output and battery 4 are connected, battery 4 and second pilot lamp 5 are connected, USB circuit 13's input and battery 4 are connected, battery 4 and undervoltage protection control circuit 6's input are connected, undervoltage protection control circuit 6's output and third pilot lamp 9 are connected, power supply circuit 1 is charge protection circuit 2 and first pilot lamp 3 power supply, battery 4 is second pilot lamp 5, undervoltage protection control circuit 6, third pilot lamp 9 and USB circuit 13 power supply.
After the control circuit of the portable medical equipment maintenance device is electrified, medical staff can charge the storage battery 4 through the USB circuit 13, the charging protection circuit 2 starts to work, the first indicator lamp 3 is lightened, the power supply circuit 1 supplies power for the medical equipment, so that the medical equipment can work normally and can continue to treat patients, the treatment time of the patients cannot be delayed, when the storage battery 4 is discharged, the second indicator lamp 5 is lightened, if under-voltage conditions occur, the third indicator lamp 9 is lightened, and after the control circuit of the portable medical equipment maintenance device is powered off, the first indicator lamp 3, the second indicator lamp 5 and the third indicator lamp 9 are extinguished.
Example 2
On the basis of embodiment 1, as shown in fig. 1, the under-voltage protection control circuit further comprises a first electronic switch 7 and an LED illuminating lamp 8, wherein the output end of the under-voltage protection control circuit 6 is connected with the first electronic switch 7, the first electronic switch 7 is connected with the LED illuminating lamp 8, and the storage battery 4 supplies power for the first electronic switch 7 and the LED illuminating lamp 8.
Medical personnel short press first electronic switch 7, LED light 8 begins work, and LED light 8 lights, provides the illumination, makes things convenient for medical personnel to maintain medical equipment, long-term first electronic switch 7, and LED light 8 closes.
The under-voltage protection control circuit is characterized by further comprising a first potentiometer 10, a voltage amplification comparison circuit 11, a temperature sensor 12 and a heater 14, wherein the output end of the under-voltage protection control circuit 6 is connected with the input end of the voltage amplification comparison circuit 11, the output end of the voltage amplification comparison circuit 11 is connected with the heater 14, the first potentiometer 10 and the temperature sensor 12 are both connected with the input end of the voltage amplification comparison circuit 11, and the storage battery 4 supplies power for the first potentiometer 10, the voltage amplification comparison circuit 11, the temperature sensor 12 and the heater 14.
After the portable medical equipment maintenance device control circuit is electrified, the voltage amplification comparison circuit 11 controls the heater 14 to work, the heater 14 can heat the liquid medicine, the cold liquid medicine is prevented from causing discomfort to a patient, the first potentiometer 10 can set the reference temperature of the voltage amplification comparison circuit 11, the temperature sensor 12 starts to work, the temperature sensor 12 can detect the temperature of the liquid medicine and input detected data into the voltage amplification comparison circuit 11, the voltage amplification comparison circuit 11 compares the detected temperature with the reference temperature, and when the detected temperature is greater than the reference temperature, the heater 14 is turned off.
Example 3
A portable medical equipment maintenance device control circuit is shown in figure 2, the charging protection circuit 2 comprises a FUSE FUSE1, a rectifier bridge D4, a resistor R1, a resistor R2, a resistor R5, a resistor R7, a capacitor C1, a diode D3, a diode D5, a light emitting diode VD1, a battery BT1, a triode Q2, an electrolytic capacitor EC1, an electrolytic capacitor EC3, a silicon controlled rectifier Q4 and a silicon controlled rectifier Q6, the pin 4 of the rectifier bridge D4 is grounded, the pin 3 of the rectifier bridge D4 is connected with an alternating current N end, the pin 1 of the rectifier bridge D4 is connected with the FUSE FUSE1 in series, the pin 2 of the rectifier bridge D4 is connected with the diode D1 in series, the pin 2 of the rectifier bridge D4 is connected with the electrolytic capacitor EC1 in series, the pin 2 of the resistor R1 is connected with one end of the resistor R1, the other pin 12V 4 of the resistor R1 is connected with the other pin 2 of the diode Q4, the cathode of the diode Q4 is connected with the cathode of the diode Q6, the cathode of the triode Q4 is connected with the diode Q6, the diode Q4 is connected with the cathode of the diode Q6, the Q2 of the diode Q4 is connected with the diode Q3, the Q3 is connected with the diode Q6 in series, the Q3 is connected with the Q3, the other end of the battery BT1 is connected with a series connection intermediate point of the light emitting diode VD1 and the resistor R7.
The under-voltage protection control circuit 6 comprises a triode Q1, a triode Q3, a controllable silicon Q5, a controllable silicon Q7, a light emitting diode VD2, a light emitting diode VD3, a resistor R4, a resistor R6, a resistor R8, an electrolytic capacitor EC4 and a diode D2, wherein the diode D2 and the resistor R6 are connected in series, the cathode of the diode D2 is connected with +12V, the other end of the resistor R6 is grounded, the emitter of the triode Q1 is connected with +12V, the base of the triode Q1 is connected with one end of the resistor R3, the other end of the resistor R3 is connected with the serial intermediate point of the diode D2 and the resistor R6, the collector of the triode Q1 is connected with the anode of the light emitting diode VD2 in series, the cathode of the light emitting diode VD2 is connected with the cathode of the controllable silicon Q7, the anode of the controllable silicon Q7 is grounded, the electrolytic capacitor EC2 is connected with the control electrode of the controllable silicon Q5 in series, the other end of the controllable silicon Q5 is connected with the anode of the controllable silicon Q7, the cathode of the triode Q7 is connected with the anode of the controllable silicon Q4, and the cathode of the controllable silicon Q7 is connected with the anode of the cathode of the triode Q3, and the cathode of the controllable silicon Q7 is connected with the cathode of the resistor 3, and the cathode of the triode Q3.
The first electronic switch 7 comprises a triode Q8, a triode Q10, a triode Q11, a resistor R10, a resistor R12, a resistor R14, a resistor R18, a resistor R19, a resistor R20, an electrolytic capacitor EC5 and a light touch switch SW1, wherein an emitter of the triode Q8 is connected with +12V, one end of a base electrode of the triode Q8 is connected with one end of the resistor R14, the other end of the resistor R14 is connected with a collector of the triode Q10, the emitter of the triode Q10 is grounded, a collector of the triode Q10 is connected with one end of the resistor R12, the other end of the resistor R12 is connected with +12V, the base electrode of the triode Q10 is connected with the resistor R18 and the other end of the resistor R20 in series, the base electrode of the triode Q12 is connected with the resistor R18, the other end of the resistor R20 is connected with the base electrode of the resistor C12, the base electrode of the triode Q12 is connected with the resistor C8, and the other end of the resistor C13 is connected with the resistor C8.
The LED illuminating lamp 8 is formed by connecting three groups of light emitting diodes connected in series in parallel to form two common ends, the common end formed by the cathodes of the light emitting diodes is grounded, and the common end formed by the anodes of the light emitting diodes is connected with the other end of the resistor R10.
The voltage amplification comparison circuit 11 comprises an operational amplifier LM393A-U1, a triode Q9, a relay RL1, a heater PCT1, a light emitting diode VD13, a diode D6, a resistor R9, a resistor R11, a resistor R15, a resistor R16, a resistor R17 and a temperature sensor RT1, wherein the 4 feet of the operational amplifier LM393A-U1 are grounded, the 8 feet of the operational amplifier LM393A-U1 are connected with +1V, the 7 feet of the operational amplifier LM393A-U1 are connected with the base electrode of the triode Q9 in series, the emitter electrode of the triode Q9 is connected with +1V, the base electrode of the triode Q9 is connected with one end of the resistor R9, the other end of the resistor VD 9 is connected with +1V, the collector electrode of the triode Q9 is connected with the anode of the light emitting diode D13, the cathode of the diode Q9 is connected with the cathode of the diode D6, the anode of the diode D6 is connected with the cathode of the diode D6, the other end of the triode Q1 is connected with the collector electrode of the coil of the triode Q1 is connected with the temperature sensor RL1, the other end of the triode Q1 is connected with the other end of the resistor RL1 is connected with the temperature sensor RL1, and the other end of the temperature sensor RL1 is connected with the other end of the temperature sensor R1 is connected with the temperature sensor R1.
The first potentiometer 10 is a potentiometer VR1, the other end of the resistor R16 is connected with one end of the potentiometer VR1, the other end of the potentiometer VR1 is connected with +12v, and the adjustable end of the potentiometer VR1 is connected with the 6 pins of the operational amplifier LM 393A-U1.
After the portable medical equipment maintenance device control circuit is electrified, the rectifier bridge D4 converts alternating current into direct current, the operational amplifier LM393A-U1 outputs high level, the triode Q9 is switched on, the relay RL1 is attracted, the heater PCT1 starts to work, the heater PCT1 can heat liquid medicine, the temperature sensor RT1 can detect the temperature of the liquid medicine, and the detected data is input into the operational amplifier LM393A-U1, the operational amplifier LM393A-U1 compares the detected temperature with a reference temperature, when the detected temperature is higher than the reference temperature, the operational amplifier LM393A-U1 outputs low level, the triode Q9 is switched off, the heater PCT1 is switched off, the reference temperature of the operational amplifier LM A-U1 can be set by adjusting the resistance value of the potentiometer VR1, the temperature sensor RT1 can be short-touch the switch 1, the triode Q11 is switched on, the LED illuminating lamp 8 is lighted, the medical equipment is conveniently maintained, the long-touch light touch switch SW1 is switched off, when the triode Q11 is switched off, the triode Q9V 2 is switched on, the triode Q2V 2 is switched off, the triode VD 2D 2 is switched off, the triode VD 2D 2 is switched on and the triode Q3 is switched off the normal, the triode Q2 is switched off 3 is switched off the normal, the triode 3 is switched off 3V 2 is switched on.
While the invention has been described with reference to exemplary embodiments, it is to be understood that the invention is not limited to the disclosed exemplary embodiments. The scope of the following claims is to be accorded the broadest interpretation so as to encompass all such modifications and equivalent structures and functions.

Claims (7)

1. The utility model provides a portable medical equipment maintains device control circuit, its characterized in that, including power supply circuit (1), charge protection circuit (2), first pilot lamp (3), battery (4), second pilot lamp (5), undervoltage protection control circuit (6), third pilot lamp (9) and USB circuit (13), charge protection circuit (2) output and first pilot lamp (3) are connected, charge protection circuit (2) output and battery (4) are connected, battery (4) and second pilot lamp (5) are connected, USB circuit (13) input and battery (4) are connected, battery (4) and undervoltage protection control circuit (6) input are connected, undervoltage protection control circuit (6) output and third pilot lamp (9) are connected, power supply circuit (1) is charge protection circuit (2) and first pilot lamp (3) power supply, battery (4) are second pilot lamp (5), undervoltage protection control circuit (6), third pilot lamp (9) and USB circuit (13) power supply;
the LED lamp protection circuit is characterized by further comprising a first electronic switch (7) and an LED lamp (8), wherein the output end of the undervoltage protection control circuit (6) is connected with the first electronic switch (7), the first electronic switch (7) is connected with the LED lamp (8), and the storage battery (4) supplies power for the first electronic switch (7) and the LED lamp (8);
the low-voltage protection circuit is characterized by further comprising a first potentiometer (10), a voltage amplification comparison circuit (11), a temperature sensor (12) and a heater (14), wherein the output end of the low-voltage protection control circuit (6) is connected with the input end of the voltage amplification comparison circuit (11), the output end of the voltage amplification comparison circuit (11) is connected with the heater (14), the first potentiometer (10) and the temperature sensor (12) are both connected with the input end of the voltage amplification comparison circuit (11), and the storage battery (4) supplies power to the first potentiometer (10), the voltage amplification comparison circuit (11), the temperature sensor (12) and the heater (14);
the charging protection circuit (2) comprises a FUSE FUSE1, a rectifier bridge D4, a resistor R1, a resistor R2, a resistor R5, a resistor R7, a capacitor C1, a diode D3, a diode D5, a light emitting diode VD1, a battery BT1, a triode Q2, an electrolytic capacitor EC1, an electrolytic capacitor EC3, a silicon controlled rectifier Q4 and a silicon controlled rectifier Q6, the pin 4 of the rectifier bridge D4 is grounded, the pin 3 of the rectifier bridge D4 is connected with an alternating current N end, the pin 1 of the rectifier bridge D4 is connected with the capacitor C1 and the FUSE FUSE1 in series, the other end of the FUSE FUSE1 is connected with an alternating current L end, the pin 2 of the rectifier bridge D4 is connected with the diode D1 in series, the electrolytic capacitor EC1 is connected with the end of the resistor R1 in series, the other end of the resistor R1 is connected with the other end of the resistor R12V, the 2 of the rectifier bridge D4 is connected with the cathode of the resistor R6, the cathode of the resistor R4 is connected with the triode Q6, the cathode of the resistor Q4 is connected with the cathode of the resistor Q6, the cathode of the resistor Q6 is connected with the triode Q4 in series, the cathode of the resistor Q6 is connected with the triode Q6, and the cathode of the resistor Q6.
2. The portable medical equipment maintenance device control circuit according to claim 1, wherein the under-voltage protection control circuit (6) comprises a triode Q1, a triode Q3, a controllable silicon Q5, a controllable silicon Q7, a light emitting diode VD2, a light emitting diode VD3, a resistor R4, a resistor R6, a resistor R8, an electrolytic capacitor EC4 and a diode D2, wherein the diode D2 is connected with the resistor R6 in series, the cathode of the diode D2 is connected with +12V, the other end of the resistor R6 is grounded, the emitter of the triode Q1 is connected with +1V, the base of the triode Q1 is connected with one end of the resistor R3, the other end of the resistor R3 is connected with the series intermediate point of the diode D2 and the resistor R6, the collector of the triode Q1 is connected with the anode of the light emitting diode D2 in series, the cathode of the controllable silicon Q7 is connected with the cathode of the controllable silicon Q7, the anode of the controllable silicon Q7 is grounded, the cathode of the controllable silicon Q1 is connected with the anode of the resistor R6 in series, the cathode of the controllable silicon Q2 is connected with the cathode of the controllable silicon Q3, the cathode of the controllable silicon Q4 is connected with the cathode of the controllable silicon Q3, the other end of the controllable silicon Q3 is connected with the cathode of the controllable silicon Q3, the cathode of the controllable silicon Q3 is connected with the cathode of the controllable silicon Q3, the cathode of the controllable silicon Q3 is connected with the anode, the cathode of the controllable silicon is connected with the anode, the cathode of the cathode is connected with the anode.
3. A portable medical equipment maintenance device control circuit according to claim 2, wherein the first electronic switch (7) comprises a triode Q8, a triode Q10, a triode Q11, a resistor R10, a resistor R12, a resistor R14, a resistor R18, a resistor R19, a resistor R20, an electrolytic capacitor EC5 and a light touch switch SW1, wherein an emitter of the triode Q8 is connected to +12v, a base of the triode Q8 is connected to one end of the resistor R14, the other end of the resistor R14 is connected to a collector of the triode Q10, an emitter of the triode Q10 is grounded, a collector of the triode Q10 is connected to one end of the resistor R12, the other end of the resistor R12 is connected to +12v, a base of the triode Q10 is connected to the resistor R18, the other end of the resistor R20 is grounded, one end of the light touch switch SW1 is connected to +12v, the other end of the light touch switch SW1 is connected to an intermediate point of the resistor R18 and the resistor R20, the other end of the triode Q10 is connected to the base of the resistor 12, the other end of the resistor 12 is connected to the resistor 12, and the base of the resistor is connected to the resistor 12 is connected to the base of the resistor 12, the resistor is connected to the resistor 12, the base of the resistor is connected to the resistor is 12.
4. A portable medical equipment maintenance apparatus control circuit according to claim 3, wherein the LED illuminating lamp (8) is composed of three groups of serially connected LEDs connected in parallel to form two common terminals, the common terminal formed by the LED cathodes is grounded, and the common terminal formed by the LED anodes is connected to the other end of the resistor R10.
5. The portable medical equipment maintenance device control circuit according to claim 4, wherein the voltage amplification comparison circuit (11) comprises an operational amplifier LM393A-U1, a triode Q9, a relay RL1, a heater PCT1, a light emitting diode VD13, a diode D6, a resistor R9, a resistor R11, a resistor R15, a resistor R16, a resistor R17 and a temperature sensor RT1, the pin 4 of the operational amplifier LM393A-U1 is grounded, the pin 8 of the operational amplifier LM393A-U1 is connected with +1V, the pin 7 of the operational amplifier LM A-U1 is connected with the base of a triode Q9 in series, the emitter of the triode Q9 is connected with +1V, the other end of the resistor R9 is connected with +1V, the collector of the triode Q9 is connected with the anode of the light emitting diode RT 13 in series, the cathode of the diode R13 is grounded, the coil R6 of the other end of the triode Q9 is connected with the cathode of the resistor R1, the other end of the resistor RL1 is connected with the other end of the resistor R1 is connected with the temperature sensor R1.
6. A portable medical equipment maintenance apparatus control circuit according to claim 5, wherein the first potentiometer (10) is a potentiometer VR1, the other end of the resistor R16 is connected to one end of the potentiometer VR1, the other end of the potentiometer VR1 is connected to +12v, and the adjustable end of the potentiometer VR1 is connected to the 6 pins of the operational amplifier LM 393A-U1.
7. A portable medical device maintenance apparatus control circuit according to claim 6, wherein said operational amplifier is of the LM393A type.
CN202110938631.8A 2021-08-16 2021-08-16 Portable medical equipment maintenance device control circuit Active CN113783248B (en)

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Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210297344U (en) * 2019-09-12 2020-04-10 西安钧标电子科技有限公司 Portable emergency maintenance power supply
CN112751392A (en) * 2021-01-25 2021-05-04 刘杰 Medical equipment battery under-voltage charging control circuit

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN210297344U (en) * 2019-09-12 2020-04-10 西安钧标电子科技有限公司 Portable emergency maintenance power supply
CN112751392A (en) * 2021-01-25 2021-05-04 刘杰 Medical equipment battery under-voltage charging control circuit

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