CN219627394U - Medical equipment and power supply circuit thereof - Google Patents
Medical equipment and power supply circuit thereof Download PDFInfo
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- CN219627394U CN219627394U CN202320352057.2U CN202320352057U CN219627394U CN 219627394 U CN219627394 U CN 219627394U CN 202320352057 U CN202320352057 U CN 202320352057U CN 219627394 U CN219627394 U CN 219627394U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
- Y02E60/00—Enabling technologies; Technologies with a potential or indirect contribution to GHG emissions mitigation
- Y02E60/10—Energy storage using batteries
Abstract
The utility model discloses medical equipment and a power supply circuit thereof, wherein the power supply circuit comprises a storage battery pack, the input end of the storage battery pack is connected with a charging and discharging control circuit and then is connected with the rear end of a relay, and the front end of the relay is connected with a power line; the output end of the storage battery pack is connected with the charge-discharge control circuit and then connected with the current input port of the main control module, and the current output port of the main control module is connected with medical equipment; the main control module is provided with a plurality of signal input and output ports, and one signal output port is connected with the relay coil and used for controlling the switch of the relay; a signal output port is connected with the charge-discharge control circuit and is used for controlling the charge and discharge of the storage battery pack; and a signal input port is connected with a current transformer arranged on the L line at the rear end of the relay and used for receiving a current signal and sending the current signal to the main control module. The utility model can ensure that the equipment automatically disconnects the charging circuit under the working state without manually plugging and unplugging the charging plug.
Description
Technical Field
The utility model belongs to the field of power supply circuits, and particularly relates to medical equipment and a power supply circuit thereof.
Background
Currently, most portable devices are powered by a storage battery, and when the portable device is used, the portable device needs to be fully charged and then a charging power plug is pulled out for use. However, many devices cannot be charged and used when required, and the battery is possibly damaged due to such use, and other devices are not reliable in design due to cost problem, and the electric shock danger of the back-end device is possibly caused by the failure of the charging process circuit because of the direct electric shock of the charging connection commercial power through the failure point. A portable miniature depression adjuvant therapy apparatus is disclosed in chinese patent publication No. CN110575599 a.
For portable medical devices, charging is not allowed. For some portable medical devices with charging functions, some of the devices are used for notifying workers that the devices cannot be used when the devices are charged in a training mode. And when the equipment is inserted into the equipment through mechanical design and mechanical switch, the equipment cannot work no matter the plug at the other end is connected with mains supply, the structural design difficulty is improved, the cost is increased, the requirement on the plugging times of the cable port is higher, and the phenomena of poor contact and the like are easy to occur for a long time.
Disclosure of Invention
The utility model provides medical equipment and a power supply circuit thereof, which can ensure that the equipment can automatically disconnect a charging circuit under the working state without manually plugging and unplugging a charging plug.
The technical scheme of the utility model is as follows:
the power supply circuit of the medical equipment comprises a storage battery pack, wherein the input end of the storage battery pack is connected with a charging and discharging control circuit and then is connected with the rear end of a relay, and the front end of the relay is connected with a power line; the output end of the storage battery pack is connected with the charge-discharge control circuit and then connected with the current input port of the main control module, and the current output port of the main control module is used for being connected with medical equipment;
the main control module is provided with a plurality of signal input ports and signal output ports, wherein one signal output port is connected with a relay coil on the relay and used for controlling the opening and closing of the relay; a signal output port is connected with a control switch on the charge-discharge control circuit and used for controlling the charge and discharge of the storage battery pack; and a signal input port is connected with a current transformer arranged on the L line at the rear end of the relay and used for receiving a current signal on the L line and sending the current signal to the main control module.
Further, the relay adopts a double-circuit relay, and the double-circuit relay is respectively connected with an L line and an N line of the power line.
Further, the main control module is provided with an electric quantity detection unit, and the electric quantity detection unit is connected with an electric quantity acquisition interface arranged on the charge-discharge control circuit through an electric quantity detection circuit and is used for detecting whether the electric quantity of the storage battery pack reaches a preset value.
Further, the main control module comprises an MCU chip, an optocoupler chip and an A/D conversion chip;
the signal input port and the signal output port of the main control module are respectively connected with the signal acquisition unit and the instruction output unit on the MCU chip; the command output unit is isolated by the optocoupler chip and then connected with a relay coil on the relay through a signal output port;
the A/D conversion chip is connected with the current transformer through a signal input port and is used for converting the current signal into a digital signal and then sending the digital signal to the MCU chip.
Further, the charge-discharge control circuit comprises a voltage stabilizing circuit, a constant current circuit and a charge indicating circuit, wherein the voltage stabilizing circuit, the constant current circuit and the charge indicating circuit are formed by a voltage stabilizing tube, a switching tube and a resistor-capacitor element.
The utility model also provides medical equipment, and the power supply circuit is adopted.
Compared with the prior art, the utility model has the following beneficial effects:
the power supply circuit is provided with the double-circuit relay, the charge-discharge control circuit and the main control module, and the charging circuit can be disconnected under the working state of the equipment through the control logic of the main control module; in addition, the current transformer is arranged at the rear end of the relay, so that the situation that a charging circuit cannot be disconnected due to contact adhesion caused by relay faults in the using process of equipment can be avoided, and at the moment, the equipment can send out a warning after collecting a current signal of the charging circuit, and meanwhile, treatment is stopped.
Drawings
Fig. 1 is a schematic diagram of a power supply circuit in the present utility model.
Detailed Description
The utility model will be described in further detail with reference to the drawings and examples, it being noted that the examples described below are intended to facilitate the understanding of the utility model and are not intended to limit the utility model in any way.
As shown in fig. 1, a power supply circuit of a medical device includes a power line 20, a relay 11, a current transformer 12, a battery pack 13, a charge-discharge control circuit 14, and a main control module 15.
The input end of the storage battery pack 13 is connected with the charge-discharge control circuit 14 and then is connected with the rear end of the relay 11, and the front end of the relay 11 is connected with the power line 20; the output end of the storage battery pack 13 is connected with the charge-discharge control circuit 14 and then connected with the current input port of the main control module, and the current output port of the main control module 15 is connected with medical equipment through an output cable 16.
The main control module 15 is provided with a plurality of signal input ports and signal output ports, wherein one signal output port is connected with a relay coil on the relay 11 and used for controlling the opening and closing of the relay; a signal output port is connected with a control switch on the charge-discharge control circuit 14 and is used for controlling the charge and discharge of the storage battery pack 13; a signal input port is connected to a current transformer 12 provided on the L line at the rear end of the relay 11 for receiving a current signal on the L line and transmitting it to the main control module 14. The main control module 15 is provided with an electric quantity detection unit, and the electric quantity detection unit is connected with the charge and discharge control circuit 14 through an electric quantity detection circuit 151 and is used for detecting whether the electric quantity of the storage battery pack 13 reaches a preset value.
In the utility model, the relay 11 adopts a double-circuit relay which is respectively connected with the L line and the N line of the power line.
The main control module comprises an MCU chip, an optocoupler chip and an A/D conversion chip; the signal input port and the signal output port of the main control module are respectively connected with the signal acquisition unit and the instruction output unit on the MCU chip. The command output unit is isolated by the optocoupler chip and then connected with a relay coil on the relay through a signal output port. The A/D conversion chip is connected with the current transformer through a signal input port and is used for converting the current signal into a digital signal and then sending the digital signal to the MCU chip so that the MCU chip can judge the circuit state at the moment.
The charge-discharge control circuit comprises a voltage stabilizing circuit, a constant current circuit and a charge indication circuit, wherein the voltage stabilizing circuit, the constant current circuit and the charge indication circuit are formed by a voltage stabilizing tube, a switching tube and a resistance-capacitance element together; and the charge and discharge control circuit is provided with an electric quantity acquisition interface, the interface is connected with the main control module, and equipment electric quantity reminding is realized through acquisition of the electric quantity state.
In the use process of the device, a simple control logic needs to be set for the main control module 15 of the power supply circuit, and the control process of the main control module 15 is as follows:
before the device starts to operate, the main control module 15 checks the electric quantity of the storage battery pack 13 through the electric quantity detection unit, and when the electric quantity of the storage battery pack 13 is lower than the set threshold value, the device is not allowed to operate, and power supply to the device is stopped through the current output port of the main control module 15. At this time, the main control module 15 controls the control switch on the charge/discharge control circuit 14 to control the storage battery pack 13 to enter the charging mode, and at the same time, the main control module 15 sends an instruction to the relay 11 to close the charging line, and at this time, the device automatically enters the charging state. In the charging process, the relay 11 is in a normal state, at this time, the main control module 15 cannot give an instruction to the current output port, that is, the device cannot work, when the charging electric quantity reaches a preset value, a prompt is sent, and if no operation instruction is given, the storage battery pack 13 continues to be charged until full.
Only when the electric quantity of the storage battery pack 13 at least meets the electric quantity required by the treatment course of the equipment, the equipment is allowed to work, when the electric quantity of the storage battery pack 13 is detected to be higher than a preset value, the equipment can enter an output state, if the equipment is required to work, the main control module 15 can send an instruction to the relay coil of the relay 11 to disconnect the relay, meanwhile, the main control module 15 controls a control switch on the charge and discharge control circuit 14 to control the storage battery pack 13 to enter a discharge mode, and the equipment enters a working state.
In the normal treatment process of the equipment, the main control module 15 can acquire whether the current transformer 12 has a current signal in real time, when the relay 11 fails and contacts are adhered, the current transformer 12 can send the detected current signal to the main control module 15, the main control module 15 controls a current output port to stop supplying power to the equipment, the equipment is automatically stopped, and a fault warning is sent out.
If there is no fault warning, the device will remain operational until the device is completed.
The power supply circuit is applied to the portable medical equipment, realizes a safer medical equipment power supply line, can ensure that the equipment can automatically disconnect a charging circuit under the working state without manually plugging and unplugging a charging plug, and avoids potential danger caused by improper manual operation or equipment problems.
The foregoing embodiments have described in detail the technical solution and the advantages of the present utility model, it should be understood that the foregoing embodiments are merely illustrative of the present utility model and are not intended to limit the utility model, and any modifications, additions and equivalents made within the scope of the principles of the present utility model should be included in the scope of the utility model.
Claims (6)
1. The power supply circuit of the medical equipment is characterized by comprising a storage battery pack, wherein the input end of the storage battery pack is connected with the charging and discharging control circuit and then is connected with the rear end of a relay, and the front end of the relay is connected with a power line; the output end of the storage battery pack is connected with the charge-discharge control circuit and then connected with the current input port of the main control module, and the current output port of the main control module is used for being connected with medical equipment;
the main control module is provided with a plurality of signal input ports and signal output ports, wherein one signal output port is connected with a relay coil on the relay and used for controlling the opening and closing of the relay; a signal output port is connected with a control switch on the charge-discharge control circuit and used for controlling the charge and discharge of the storage battery pack; and a signal input port is connected with a current transformer arranged on the L line at the rear end of the relay and used for receiving a current signal on the L line and sending the current signal to the main control module.
2. The power supply circuit of the medical equipment according to claim 1, wherein the relay adopts a two-way relay, and the two-way relay is respectively connected with an L line and an N line of the power line.
3. The power supply circuit of the medical equipment according to claim 1, wherein the main control module is provided with an electric quantity detection unit, and the electric quantity detection unit is connected with an electric quantity acquisition interface arranged on the charge-discharge control circuit through an electric quantity detection circuit and is used for detecting whether the electric quantity of the storage battery pack reaches a preset value.
4. The power supply circuit of the medical equipment according to claim 1, wherein the main control module comprises an MCU chip, an optocoupler chip and an A/D conversion chip;
the signal input port and the signal output port of the main control module are respectively connected with the signal acquisition unit and the instruction output unit on the MCU chip; the command output unit is isolated by the optocoupler chip and then connected with a relay coil on the relay through a signal output port;
the A/D conversion chip is connected with the current transformer through a signal input port and is used for converting the current signal into a digital signal and then sending the digital signal to the MCU chip.
5. The power supply circuit of the medical equipment according to claim 1, wherein the charge-discharge control circuit comprises a voltage stabilizing circuit, a constant current circuit and a charge indicating circuit which are formed by a voltage stabilizing tube, a switching tube and a resistor-capacitor element together.
6. A medical device characterized in that the power supply circuit according to any one of claims 1 to 5 is used.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320352057.2U CN219627394U (en) | 2023-02-27 | 2023-02-27 | Medical equipment and power supply circuit thereof |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320352057.2U CN219627394U (en) | 2023-02-27 | 2023-02-27 | Medical equipment and power supply circuit thereof |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219627394U true CN219627394U (en) | 2023-09-01 |
Family
ID=87796136
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320352057.2U Active CN219627394U (en) | 2023-02-27 | 2023-02-27 | Medical equipment and power supply circuit thereof |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219627394U (en) |
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2023
- 2023-02-27 CN CN202320352057.2U patent/CN219627394U/en active Active
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