CN210397060U - Micropump with liquid shortage alarm - Google Patents
Micropump with liquid shortage alarm Download PDFInfo
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- CN210397060U CN210397060U CN201920447400.5U CN201920447400U CN210397060U CN 210397060 U CN210397060 U CN 210397060U CN 201920447400 U CN201920447400 U CN 201920447400U CN 210397060 U CN210397060 U CN 210397060U
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- power supply
- pump body
- control circuit
- module
- voltage comparator
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Abstract
The utility model discloses a micropump with liquid deficiency alarm, which judges the working state (whether idling) of the pump by comparing the current change of the pump in liquid pumping and air pumping (no-load), thereby deducing whether entering the liquid deficiency state, feeding back the signal, realizing the liquid deficiency alarm, integrating the circuit board at the end of the motor, feeding back the running state in real time by a liquid deficiency feedback line besides the traditional outlet line of the whole pump, preventing idling and realizing the liquid deficiency alarm; in order to solve the technical problem, the utility model discloses a technical scheme be: a micropump with a liquid shortage alarm comprises a pump body, a power circuit and a comparison control circuit; the power supply circuit is electrically connected with the pump body and the comparison control circuit respectively, the power supply circuit is electrically connected with the pump body and the comparison control circuit respectively to provide direct current, the pump body is electrically connected with the comparison control circuit, and the comparison control circuit is used for monitoring the current of the pump body; the utility model discloses but wide application in micropump and fluid field.
Description
Technical Field
The utility model relates to a micropump of liquid shortage warning belongs to micropump and fluid technical field.
Background
When the existing diaphragm pump is used, the liquid shortage alarm cannot be realized, for example, when the traditional pump pumps liquid, the liquid is pumped up (the pump cannot continuously pump the liquid), and then the pump enters an idle running state. Because the signal can not be fed back, the liquid can not be supplemented, the pump continues to do useless work, the energy is wasted, and even the pump is burnt.
SUMMERY OF THE UTILITY MODEL
The utility model overcomes prior art exists not enough, provides a take micropump that lacks liquid and report to police, can feed back running state in real time, prevents idle running, realizes lacking the liquid and reports to the police.
In order to solve the technical problem, the utility model discloses a technical scheme be: a micropump with a liquid shortage alarm comprises a pump body, a power circuit and a comparison control circuit; the power supply circuit is electrically connected with the pump body and the comparison control circuit respectively, the power supply circuit is electrically connected with the pump body and the comparison control circuit respectively to provide direct current, the pump body is electrically connected with the comparison control circuit, and the comparison control circuit is used for monitoring the current of the pump body;
the comparison control circuit includes: adjustable resistor R4 and dual voltage comparator integrated circuit module L; the VCC end of the L power supply pin of the dual-voltage comparator integrated circuit module is connected with 5V direct current, and the VCC terminal of the L power pin of the dual voltage comparator integrated circuit module is further connected to the capacitor C3 and the resistor R2, the other end of the capacitor C3 is grounded, the other end of the resistor R2 is connected with the signal output end of the double-voltage comparator integrated circuit module L, the current signal access pin IN-of the dual-voltage comparator integrated circuit module L is connected with one fixed end of the resistor R3 and the adjustable resistor R4, the other end of the resistor R3 is connected with a +5V power supply, the other fixed end and the middle end of the adjustable resistor R4 are both grounded, the current signal access pin IN + of the dual-voltage comparator integrated circuit module L is connected with the negative pole of the pump body and the resistor R5, the positive pole of the pump body is connected with a VCC end, the other end of the resistor R5 is grounded, and the grounding ends of the double-voltage comparator integrated circuit module L are grounded.
The power supply circuit comprises a power supply circuit, and the power supply circuit specifically comprises:
the three terminal regulator IC input is connected with power VCC end and electric capacity C1, electric capacity C1 other end ground connection, output +5V voltage of three terminal regulator IC output back is connected with two voltage comparator integrated circuit module L power pin VCC end and the resistance R3 other end, just three terminal regulator IC output still is connected with electric capacity C2, electric capacity C2 other end ground connection.
And the two ends of the anode and the cathode of the pump body are respectively connected with the cathode and the anode of the light-emitting diode.
The dual voltage comparator integrated circuit module L is an LM393DR2G module.
The three-terminal regulator IC is 78L05G-AB 3-R.
The power supply circuit further includes a power supply control circuit, the power supply control circuit including: the device comprises an MCU module, an isolation power supply, a buzzer, a thyristor driving circuit and a touch module; the MCU module is respectively and electrically connected with the L signal output end of the dual-voltage comparator integrated circuit module, the buzzer, the thyristor driving circuit and the touch module, the thyristor driving circuit is connected with the thyristor control end, the anode of the thyristor is connected with the anode of the isolation power supply, and the cathode of the thyristor is connected with the VCC end of the power supply.
The power circuit and the comparison control circuit are both fixed on the PCB and are mounted on the pump body shell and are sealed through the box body.
The light emitting diode, the buzzer and the touch module are all arranged on the outer side of the box body, so that observation and control are facilitated.
Compared with the prior art, the utility model beneficial effect who has is: the utility model discloses a comparison pump is at the drawing of liquid and the current change of bleeding (empty load), judges the operating condition of pump (whether idle running) to whether the inference gets into the liquid deficiency state, and with signal feedback, accomplish the liquid deficiency warning, the circuit board integration is at the end of motor, and whole pump is outside traditional being qualified for the next round of competitions, and a liquid deficiency feedback line still has, can feed back the running state in real time, prevents idle running, realizes the liquid deficiency warning.
Drawings
The present invention will be further described with reference to the accompanying drawings.
Fig. 1 is a schematic diagram of the circuit structure of the present invention;
FIG. 2 is a schematic diagram of a control comparison circuit of the present invention;
fig. 3 is a schematic diagram of a power supply circuit of the power circuit of the present invention;
fig. 4 is a schematic diagram of a power control circuit of the power circuit of the present invention.
Detailed Description
As shown in fig. 1 to 4, the utility model relates to a micropump with liquid shortage alarm, which comprises a pump body, a power circuit and a comparison control circuit; the power supply circuit is electrically connected with the pump body and the comparison control circuit respectively, the power supply circuit is electrically connected with the pump body and the comparison control circuit respectively to provide direct current, the pump body is electrically connected with the comparison control circuit, and the comparison control circuit is used for monitoring the current of the pump body;
the comparison control circuit includes: adjustable resistor R4 and dual voltage comparator integrated circuit module L; the VCC end of the L power supply pin of the dual-voltage comparator integrated circuit module is connected with 5V direct current, and the VCC terminal of the L power pin of the dual voltage comparator integrated circuit module is further connected to the capacitor C3 and the resistor R2, the other end of the capacitor C3 is grounded, the other end of the resistor R2 is connected with the signal output end of the double-voltage comparator integrated circuit module L, the current signal access pin IN-of the dual-voltage comparator integrated circuit module L is connected with one fixed end of the resistor R3 and the adjustable resistor R4, the other end of the resistor R3 is connected with a +5V power supply, the other fixed end and the middle end of the adjustable resistor R4 are both grounded, the current signal access pin IN + of the dual-voltage comparator integrated circuit module L is connected with the negative pole of the pump body and the resistor R5, the positive pole of the pump body is connected with a VCC end, the other end of the resistor R5 is grounded, and the grounding ends of the double-voltage comparator integrated circuit module L are grounded.
The power supply circuit comprises a power supply circuit, and the power supply circuit specifically comprises:
the three terminal regulator IC input is connected with power VCC end and electric capacity C1, electric capacity C1 other end ground connection, output +5V voltage of three terminal regulator IC output back is connected with two voltage comparator integrated circuit module L power pin VCC end and the resistance R3 other end, just three terminal regulator IC output still is connected with electric capacity C2, electric capacity C2 other end ground connection.
And the two ends of the anode and the cathode of the pump body are respectively connected with the cathode and the anode of the light-emitting diode.
The dual voltage comparator integrated circuit module L is an LM393DR2G module.
The three-terminal regulator IC is 78L05G-AB 3-R.
The power supply circuit further includes a power supply control circuit, the power supply control circuit including: the device comprises an MCU module, an isolation power supply, a buzzer, a thyristor driving circuit and a touch module; the MCU module is respectively and electrically connected with the L signal output end of the dual-voltage comparator integrated circuit module, the buzzer, the thyristor driving circuit and the touch module, the thyristor driving circuit is connected with the thyristor control end, the anode of the thyristor is connected with the anode of the isolation power supply, and the cathode of the thyristor is connected with the VCC end of the power supply.
The power circuit and the comparison control circuit are both fixed on the PCB and are mounted on the pump body shell and are sealed through the box body.
The light emitting diode, the buzzer and the touch module are all arranged on the outer side of the box body, so that observation and control are facilitated.
The utility model discloses a comparison pump is at the drawing of liquid and the current change of bleeding (empty load), judges the operating condition of pump (whether idle running) to whether the inference gets into the liquid shortage state, and with signal feedback, accomplish the liquid shortage warning, the circuit board integration is at the end of motor, and whole pump is outside traditional being qualified for the next round of competitions, still has a liquid shortage feedback line.
The utility model discloses for lack of liquid alarm scheme at present, more reliable, and more economy reduces the pump moreover and does idle work, increase of service life.
The embodiments of the present invention have been described in detail with reference to the accompanying drawings, but the present invention is not limited to the above embodiments, and various changes can be made without departing from the spirit of the present invention within the knowledge of those skilled in the art.
Claims (6)
1. A micropump with a liquid shortage alarm is characterized by comprising a pump body, a power supply circuit and a comparison control circuit; the power supply circuit is electrically connected with the pump body and the comparison control circuit respectively, the power supply circuit is electrically connected with the pump body and the comparison control circuit respectively to provide direct current, the pump body is electrically connected with the comparison control circuit, and the comparison control circuit is used for monitoring the current of the pump body;
the comparison control circuit includes: adjustable resistor R4 and dual voltage comparator integrated circuit module L; the VCC end of the L power supply pin of the dual-voltage comparator integrated circuit module is connected with 5V direct current, and the VCC terminal of the L power pin of the dual voltage comparator integrated circuit module is further connected to the capacitor C3 and the resistor R2, the other end of the capacitor C3 is grounded, the other end of the resistor R2 is connected with the signal output end of the double-voltage comparator integrated circuit module L, the current signal access pin IN-of the dual-voltage comparator integrated circuit module L is connected with one fixed end of the resistor R3 and the adjustable resistor R4, the other end of the resistor R3 is connected with a +5V power supply, the other fixed end and the middle end of the adjustable resistor R4 are both grounded, the current signal access pin IN + of the dual-voltage comparator integrated circuit module L is connected with the negative pole of the pump body and the resistor R5, the positive pole of the pump body is connected with a VCC end, the other end of the resistor R5 is grounded, and the grounding ends of the double-voltage comparator integrated circuit module L are grounded.
2. The micropump with the liquid deficiency alarm as recited in claim 1, wherein: the power supply circuit comprises a power supply circuit, and the power supply circuit specifically comprises: including the three terminal regulator IC, the three terminal regulator IC input is connected with power VCC end and electric capacity C1, electric capacity C1 other end ground connection, be connected with two voltage comparator integrated circuit module L power pin VCC end and the resistance R3 other end behind the three terminal regulator IC output +5V voltage, just the three terminal regulator IC output still is connected with electric capacity C2, electric capacity C2 other end ground connection.
3. The micropump with the liquid deficiency alarm as recited in claim 2, wherein: and the two ends of the anode and the cathode of the pump body are respectively connected with the cathode and the anode of the light-emitting diode.
4. The micropump with the liquid deficiency alarm as recited in claim 3, wherein: the dual voltage comparator integrated circuit module L is an LM393DR2G module.
5. The micropump with the liquid deficiency alarm as recited in claim 3, wherein: the three-terminal regulator IC is 78L05G-AB 3-R.
6. The micropump with the liquid deficiency alarm as recited in claim 2, wherein: the power supply circuit further includes a power supply control circuit, the power supply control circuit including: the device comprises an MCU module, an isolation power supply, a buzzer, a thyristor driving circuit and a touch module; the MCU module is respectively and electrically connected with the L signal output end of the dual-voltage comparator integrated circuit module, the buzzer, the thyristor driving circuit and the touch module, the thyristor driving circuit is connected with the thyristor control end, the anode of the thyristor is connected with the anode of the isolation power supply, and the cathode of the thyristor is connected with the VCC end of the power supply.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920447400.5U CN210397060U (en) | 2019-04-03 | 2019-04-03 | Micropump with liquid shortage alarm |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920447400.5U CN210397060U (en) | 2019-04-03 | 2019-04-03 | Micropump with liquid shortage alarm |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN210397060U true CN210397060U (en) | 2020-04-24 |
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920447400.5U Active CN210397060U (en) | 2019-04-03 | 2019-04-03 | Micropump with liquid shortage alarm |
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| CN (1) | CN210397060U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113940576A (en) * | 2021-10-14 | 2022-01-18 | 上海利康消毒高科技有限公司 | Liquid discharging method of infrared non-contact liquid discharging device |
-
2019
- 2019-04-03 CN CN201920447400.5U patent/CN210397060U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113940576A (en) * | 2021-10-14 | 2022-01-18 | 上海利康消毒高科技有限公司 | Liquid discharging method of infrared non-contact liquid discharging device |
| CN113940576B (en) * | 2021-10-14 | 2023-08-15 | 上海利康消毒高科技有限公司 | Liquid outlet method of infrared non-contact liquid outlet device |
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