CN219875185U - Switching circuit for thrombus pump supporting external power supply and battery input - Google Patents
Switching circuit for thrombus pump supporting external power supply and battery input Download PDFInfo
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- CN219875185U CN219875185U CN202320462687.5U CN202320462687U CN219875185U CN 219875185 U CN219875185 U CN 219875185U CN 202320462687 U CN202320462687 U CN 202320462687U CN 219875185 U CN219875185 U CN 219875185U
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- resistor
- power supply
- diode
- management module
- thrombus
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- 208000007536 Thrombosis Diseases 0.000 title claims abstract description 43
- 238000001514 detection method Methods 0.000 claims abstract description 12
- 230000005669 field effect Effects 0.000 claims description 31
- 239000003990 capacitor Substances 0.000 claims description 9
- 230000005540 biological transmission Effects 0.000 claims description 6
- 238000010586 diagram Methods 0.000 description 5
- 230000001225 therapeutic effect Effects 0.000 description 3
- 206010047249 Venous thrombosis Diseases 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 2
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000012986 modification Methods 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 206010051055 Deep vein thrombosis Diseases 0.000 description 1
- 208000010378 Pulmonary Embolism Diseases 0.000 description 1
- 230000009286 beneficial effect Effects 0.000 description 1
- 239000008280 blood Substances 0.000 description 1
- 210000004369 blood Anatomy 0.000 description 1
- 230000017531 blood circulation Effects 0.000 description 1
- 238000010276 construction Methods 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 238000005516 engineering process Methods 0.000 description 1
- 230000013011 mating Effects 0.000 description 1
- 230000000737 periodic effect Effects 0.000 description 1
- 230000000087 stabilizing effect Effects 0.000 description 1
- 230000008320 venous blood flow Effects 0.000 description 1
Abstract
The utility model discloses a switching circuit for supporting external power supply and battery input of a thrombus pump, which comprises an MCU, a power switch module, a mobile power management module, an input power detection module and an external power supply; through the arrangement of the input power management module, the external power supply and the mobile power management module, the thrombus pump can use the energy of the external power supply and the energy of the battery; people send a command of switching on the power supply of the thrombus pump through the power switch module, and select the energy of an external power supply or the energy of a battery through the MCU; the input power detection module is used for detecting whether the thrombus pump is connected with an external power supply or not, so that the MCU is convenient to adjust and control; the mobile power supply management module is connected with the input power supply management module, and the input power supply management module is connected with an external power supply, so that the thrombus pump can synchronously charge a battery of the mobile power supply management module when adopting the energy of the external power supply.
Description
Technical Field
The utility model relates to a startup and shutdown circuit for a thrombus pump supporting an external power supply and battery input.
Background
The thrombus pump is also called an air pressure wave therapeutic apparatus, a circulating pressure therapeutic apparatus, a gradient pressure therapeutic apparatus and an extremity circulating apparatus, and is a rehabilitation medical apparatus for extruding and massaging the limbs in a large area according to a periodic inflation principle, increasing the venous blood flow of patients with venous thrombosis risk, greatly improving the blood flow speed, reducing blood stasis and achieving the purpose of preventing deep venous thrombosis and pulmonary embolism.
Under the general condition, the thrombus pump adopts a mode of connecting an electric wire with an external power supply to provide energy for the thrombus pump, so as to realize the inflation principle and squeeze and massage the limbs in a large area; when the thrombus pump is used, the conditions that the periphery is not provided with an external power supply but is needed to be used can be met; therefore, there is a need for a thrombus pump that can operate even when disconnected from the wire; the more common mode is that a battery is arranged in the thrombus pump and is used for supplying power; however, as the treatment period of the thrombus pump is too long, the battery is very easy to lose electricity, and when the battery is not electrified, the battery needs to be replaced or charged; therefore, in combination with the defects and advantages of the thrombus pump, the thrombus pump which can be powered by an external power supply and a battery is created, and a circuit is designed according to the working requirement of the thrombus pump, so that the battery and the external power supply can be switched and managed, and the battery can be charged by the external power supply.
Disclosure of Invention
The utility model overcomes the defects of the prior art, and provides the startup and shutdown circuit for the thrombus pump supporting the external power supply and the battery input, which has simple structure and reasonable design, enables the battery and the external power supply to be switched and managed, and can charge the battery through the external power supply.
In order to solve the technical problems, the technical scheme of the utility model is as follows:
a switching circuit for a thrombus pump supporting an external power supply and battery input comprises an MCU, a power switch module, a mobile power management module, an input power detection module and an external power supply; the MCU is connected with the power switch module, the input power management module and the input power detection module; the power switch module is connected with the mobile power management module and the input power management module; the mobile power supply management module is connected with the input power supply management module; the input power management module is connected with an external power supply; the mobile power management module includes a battery.
Further, the input power management module comprises a resistor R1, a resistor R2, a fuse F1 and a diode D1; one end of the resistor R1 is connected with the resistor R2 and is connected with the MCU; the other end of the resistor R2 is grounded; the other end of the resistor R1 is connected with one end of the fuse F1 and one end of the diode D1; the other end of the fuse F1 is connected with an external power supply; the other end of the diode D1 is connected with the power switch module and the mobile power management module.
Further, the mobile power management module comprises a resistor R3, a resistor R4, a resistor R5, a resistor R6, a power BT1 and a capacitor C1; one end of the resistor R3 is connected with one end of the resistor R4, one end of the resistor R5, one end of the capacitor C1 and the positive electrode of the power supply BT 1; the other end of the resistor R5 is connected with one end of the resistor R6 and is connected with the power switch module; the other end of the resistor R6 is grounded; the other end of the capacitor C1 is connected with the negative electrode of the power supply BT1 and grounded; the other end of the resistor R3 and the other end of the resistor R4 are connected with the power switch module and the input power management module.
Further, the power switch module comprises a field effect transistor Q1, a field effect transistor Q2, a diode D3, a resistor R7, a resistor R8 and a switch SW1; the end 1 of the field effect tube Q1 is connected with one end of a resistor R7, the end 3 of the field effect tube Q2 and one end of a diode D2; the end 2 of the field effect tube Q1 is connected with the other end of the resistor R7, the other end of the resistor R3, the other end of the resistor R4 and the other end of the diode D1; the No. 3 end of the field effect tube Q1 is connected with a resistor R5 and a resistor R6; the other end of the diode D2 is connected with one end of the switch SW1 and one end of the diode D3; the other end of the diode D3 is connected with the MCU; the other end of the switch SW1 is grounded; the end 1 of the field effect tube Q2 is connected with one end of a resistor R8, and the other end of the resistor R8 is connected with the MCU; the No. 2 ground of the field effect transistor Q2 is grounded.
Further, the line of the diode D3 connected to the MCU is a transmission line (pwr_sw_sig) of a switch-on signal; the line of the resistor R8 connected to the MCU is a transmission line (pwr_sw_off) of a switch-OFF signal.
Further, the diode D1, the diode D2 and the diode D3 are schottky diodes;
the cathode of the diode D1 is connected with the No. 2 end of the field effect transistor Q1, the resistor R7, the resistor R3 and the resistor R4; the anode of the diode D1 is connected with the resistor R1 and the fuse F1;
the cathode of the diode D2 is connected with the cathode of the diode D3 and the switch SW1; the positive electrode of the diode D2 is connected with the No. 1 end of the field effect tube Q1, the No. 3 end of the field effect tube Q2 and the resistor R7;
the anode of the diode D3 is connected with the MCU.
The beneficial effects of the utility model are as follows:
in the utility model, the thrombus pump can work through the energy provided by the external power supply through the arrangement of the input power supply management module and the external power supply; through the arrangement of the mobile power management module, the thrombus pump can work through the energy provided by the battery; people send a command of switching on the power supply of the thrombus pump through the power switch module, and select the energy of an external power supply or the energy of a battery through the MCU; the input power detection module is used for detecting whether the thrombus pump is connected with an external power supply or not, so that the MCU is convenient to adjust and control; the mobile power supply management module is connected with the input power supply management module, and the input power supply management module is connected with an external power supply, so that the thrombus pump can synchronously charge a battery of the mobile power supply management module when adopting the energy of the external power supply; when the thrombus pump works by using the energy of the battery, the input power supply detection module detects that the thrombus pump is connected with an external power supply, the energy of the external power supply is preferentially adopted, the function mode is automatically switched, and meanwhile, the battery is charged.
In the utility model, the input power management module enables the voltage input to the thrombus pump to meet the use requirement through the conduction voltage drop of the resistor R1 and the resistor R2; meanwhile, the fuse F1 is arranged, so that a protection effect is achieved, and short circuit is avoided.
In the utility model, the charging current limiting is performed by the parallel arrangement of the resistor R3 and the resistor R4, so as to protect the battery.
Drawings
FIG. 1 is a frame construction diagram of the connection and mating between the modules of the present utility model.
Fig. 2 is a circuit diagram of the whole of the present utility model.
Fig. 3 is a circuit diagram of an input power management module.
Fig. 4 is a circuit diagram of the mobile power management module.
Fig. 5 is a circuit diagram of a power switch module.
Detailed Description
The utility model will be further described with reference to the drawings and specific examples. It should be noted that the examples are only specific to the present utility model and are for the purpose of better understanding of the technical solutions of the present utility model to those skilled in the art, and should not be construed as limiting the present utility model.
Examples:
as shown in fig. 1-5, a switching circuit for a thrombus pump supporting an external power supply and battery input includes an MCU, a power switching module, a mobile power management module, an input power detection module, and an external power supply; the MCU is connected with the power switch module, the input power management module and the input power detection module; the power switch module is connected with the mobile power management module and the input power management module; the mobile power supply management module is connected with the input power supply management module; the input power management module is connected with an external power supply; the mobile power management module includes a battery.
In the utility model, the thrombus pump can work through the energy provided by the external power supply through the arrangement of the input power supply management module and the external power supply; through the arrangement of the mobile power management module, the thrombus pump can work through the energy provided by the battery; people send a command of switching on the power supply of the thrombus pump through the power switch module, and select the energy of an external power supply or the energy of a battery through the MCU; the input power detection module is used for detecting whether the thrombus pump is connected with an external power supply or not, so that the MCU is convenient to adjust and control; the mobile power supply management module is connected with the input power supply management module, and the input power supply management module is connected with an external power supply, so that the thrombus pump can synchronously charge a battery of the mobile power supply management module when adopting the energy of the external power supply; when the thrombus pump works by using the energy of the battery, the input power supply detection module detects that the thrombus pump is connected with an external power supply, the energy of the external power supply is preferentially adopted, the function mode is automatically switched, and meanwhile, the battery is charged.
In this embodiment, the input power management module includes a resistor R1, a resistor R2, a fuse F1, and a diode D1; one end of the resistor R1 is connected with the resistor R2 and is connected with the MCU; the other end of the resistor R2 is grounded; the other end of the resistor R1 is connected with one end of the fuse F1 and one end of the diode D1; the other end of the fuse F1 is connected with an external power supply; the other end of the diode D1 is connected with the power switch module and the mobile power management module; the input power management module enables the voltage input to the thrombus pump to meet the use requirement through the conduction voltage drop of the resistor R1 and the resistor R2; meanwhile, the fuse F1 is arranged, so that a protection effect is achieved, and short circuit is avoided.
In this embodiment, the mobile power management module includes a resistor R3, a resistor R4, a resistor R5, a resistor R6, a power BT1, and a capacitor C1; one end of the resistor R3 is connected with one end of the resistor R4, one end of the resistor R5, one end of the capacitor C1 and the positive electrode of the power supply BT 1; the other end of the resistor R5 is connected with one end of the resistor R6 and is connected with the power switch module; the other end of the resistor R6 is grounded; the other end of the capacitor C1 is connected with the negative electrode of the power supply BT1 and grounded; the other end of the resistor R3 and the other end of the resistor R4 are connected with the power switch module and the input power management module; and the charging current limiting is performed through the parallel connection of the resistor R3 and the resistor R4, so that the battery is protected.
In this embodiment, the power switch module includes a field effect transistor Q1, a field effect transistor Q2, a diode D3, a resistor R7, a resistor R8, and a switch SW1; the end 1 of the field effect tube Q1 is connected with one end of a resistor R7, the end 3 of the field effect tube Q2 and one end of a diode D2; the end 2 of the field effect tube Q1 is connected with the other end of the resistor R7, the other end of the resistor R3, the other end of the resistor R4 and the other end of the diode D1; the No. 3 end of the field effect tube Q1 is connected with a resistor R5 and a resistor R6; the other end of the diode D2 is connected with one end of the switch SW1 and one end of the diode D3; the other end of the diode D3 is connected with the MCU; the other end of the switch SW1 is grounded; the end 1 of the field effect tube Q2 is connected with one end of a resistor R8, and the other end of the resistor R8 is connected with the MCU; the No. 2 ground of the field effect transistor Q2 is grounded.
In this embodiment, the line connecting the diode D3 and the MCU is a transmission line (pwr_sw_sig) of a switch on signal; the line of the resistor R8 connected to the MCU is a transmission line (pwr_sw_off) of a switch-OFF signal.
In this embodiment, the diode D1, the diode D2, and the diode D3 are schottky diodes, so that the circuit is more stable as a whole by the principle of better voltage stabilizing effect; the cathode of the diode D1 is connected with the No. 2 end of the field effect transistor Q1, the resistor R7, the resistor R3 and the resistor R4; the anode of the diode D1 is connected with the resistor R1 and the fuse F1; the cathode of the diode D2 is connected with the cathode of the diode D3 and the switch SW1; the positive electrode of the diode D2 is connected with the No. 1 end of the field effect tube Q1, the No. 3 end of the field effect tube Q2 and the resistor R7; the anode of the diode D3 is connected with the MCU.
It should be noted that other technical solutions of the present utility model belong to the existing technology, so that no description is given.
The foregoing is merely a preferred embodiment of the present utility model, and it should be noted that modifications and adaptations to those skilled in the art may be made without departing from the concept of the present utility model, and such modifications and adaptations are intended to be comprehended within the scope of the present utility model.
Claims (6)
1. The startup and shutdown circuit for supporting the external power supply and battery input of the thrombus pump is characterized by comprising an MCU, a power switch module, a mobile power management module, an input power detection module and an external power supply; the MCU is connected with the power switch module, the input power management module and the input power detection module; the power switch module is connected with the mobile power management module and the input power management module; the mobile power supply management module is connected with the input power supply management module; the input power management module is connected with an external power supply; the mobile power management module includes a battery.
2. The on-off circuit for supporting external power and battery input of a thrombus pump according to claim 1, wherein the input power management module comprises a resistor R1, a resistor R2, a fuse F1 and a diode D1; one end of the resistor R1 is connected with the resistor R2 and is connected with the MCU; the other end of the resistor R2 is grounded; the other end of the resistor R1 is connected with one end of the fuse F1 and one end of the diode D1; the other end of the fuse F1 is connected with an external power supply, and the other end of the diode D1 is connected with a power switch module and a mobile power management module.
3. The on-off circuit for supporting external power and battery input of a thrombus pump according to claim 2, wherein the mobile power management module comprises a resistor R3, a resistor R4, a resistor R5, a resistor R6, a power BT1 and a capacitor C1; one end of the resistor R3 is connected with one end of the resistor R4, one end of the resistor R5, one end of the capacitor C1 and the positive electrode of the power supply BT 1; the other end of the resistor R5 is connected with one end of the resistor R6 and is connected with the power switch module; the other end of the resistor R6 is grounded; the other end of the capacitor C1 is connected with the negative electrode of the power supply BT1 and grounded; the other end of the resistor R3 and the other end of the resistor R4 are connected with the power switch module and the input power management module.
4. A power on/off circuit for a thrombus pump supporting external power and battery input as in claim 3 wherein said power switch module comprises fet Q1, fet Q2, diode D3, resistor R7, resistor R8 and switch SW1; the end 1 of the field effect tube Q1 is connected with one end of a resistor R7, the end 3 of the field effect tube Q2 and one end of a diode D2; the end 2 of the field effect tube Q1 is connected with the other end of the resistor R7, the other end of the resistor R3, the other end of the resistor R4 and the other end of the diode D1; the No. 3 end of the field effect tube Q1 is connected with a resistor R5 and a resistor R6; the other end of the diode D2 is connected with one end of the switch SW1 and one end of the diode D3; the other end of the diode D3 is connected with the MCU; the other end of the switch SW1 is grounded; the end 1 of the field effect tube Q2 is connected with one end of a resistor R8, and the other end of the resistor R8 is connected with the MCU; the No. 2 ground of the field effect transistor Q2 is grounded.
5. The on-off circuit for supporting external power and battery input of a thrombus pump according to claim 4, wherein the line of the diode D3 connected to the MCU is a transmission line pwr_sw_sig of a switch on signal; the line of the resistor R8 connected to the MCU is a transmission line pwr_sw_off of the switch-OFF signal.
6. The on-off circuit for supporting external power and battery input of a thrombus pump according to claim 5, wherein the diode D1, the diode D2 and the diode D3 are schottky diodes;
the cathode of the diode D1 is connected with the No. 2 end of the field effect transistor Q1, the resistor R7, the resistor R3 and the resistor R4; the anode of the diode D1 is connected with the resistor R1 and the fuse F1;
the cathode of the diode D2 is connected with the cathode of the diode D3 and the switch SW1; the positive electrode of the diode D2 is connected with the No. 1 end of the field effect tube Q1, the No. 3 end of the field effect tube Q2 and the resistor R7;
the anode of the diode D3 is connected with the MCU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320462687.5U CN219875185U (en) | 2023-03-13 | 2023-03-13 | Switching circuit for thrombus pump supporting external power supply and battery input |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202320462687.5U CN219875185U (en) | 2023-03-13 | 2023-03-13 | Switching circuit for thrombus pump supporting external power supply and battery input |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN219875185U true CN219875185U (en) | 2023-10-20 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202320462687.5U Active CN219875185U (en) | 2023-03-13 | 2023-03-13 | Switching circuit for thrombus pump supporting external power supply and battery input |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN219875185U (en) |
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2023
- 2023-03-13 CN CN202320462687.5U patent/CN219875185U/en active Active
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