CN215601218U - Marine instrument - Google Patents
Marine instrument Download PDFInfo
- Publication number
- CN215601218U CN215601218U CN202121169630.3U CN202121169630U CN215601218U CN 215601218 U CN215601218 U CN 215601218U CN 202121169630 U CN202121169630 U CN 202121169630U CN 215601218 U CN215601218 U CN 215601218U
- Authority
- CN
- China
- Prior art keywords
- circuit
- signal
- power unit
- temperature
- coupled
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Fee Related
Links
Images
Abstract
The utility model discloses a marine instrument, relates to an instrument, and aims to solve the problem that a diesel motor runs for a long time and is easy to generate heat and burn out to influence the navigation of a ship, and the technical scheme is characterized in that: the temperature detection circuit is used for acquiring the heating condition of the diesel motor to output a temperature sampling signal; the judging circuit is coupled with the temperature detection circuit and responds to the fact that the temperature sampling signal is larger than the set temperature reference signal to output a switching signal; and the switching circuit is coupled with the standby power unit and the common power unit and responds to a switching signal to disconnect a power supply loop of the common power unit and start the standby power unit. When the temperature rises to be greater than the set temperature reference signal, the power supply of the common power unit is cut off, and the standby power unit is supplied with power at the same time, so that the heating common power unit can be stopped and cooled, the service life of the diesel motor is prolonged, and when the oil liquid level is lower than the set reference liquid level, the ship maintains the low-speed running condition.
Description
Technical Field
The utility model relates to a meter, in particular to a marine meter.
Background
Marine instruments and meters (marine instruments) are used for measuring and controlling relevant parameters and observing and measuring a measured object during the operation of a ship, most marine diesel engines are provided with instrument control boxes, instruments such as thermometers, oil pressure meters, battery jar voltmeters and the like are basically arranged in the control boxes, but most of the instruments are traditional magnetoelectric pointer instruments which only have simple measuring functions and lower measuring precision.
In the running process of a ship, the diesel motor needs to keep running to drive the propeller to rotate so as to propel the ship to advance, and the diesel motor runs for a long time, so that the situation of heating and burning out easily occurs to influence the navigation of the ship.
Therefore, a new solution is needed to solve this problem.
SUMMERY OF THE UTILITY MODEL
Aiming at the defects in the prior art, the utility model aims to provide a marine instrument.
The technical purpose of the utility model is realized by the following technical scheme: 1. a marine instrument, characterized by: the method comprises the following steps:
the temperature detection circuit is used for acquiring the heating condition of the diesel motor to output a temperature sampling signal;
the judging circuit is coupled with the temperature detection circuit and responds to the fact that the temperature sampling signal is larger than the set temperature reference signal to output a switching signal;
the switching circuit is coupled with the standby power unit and the common power unit, responds to a switching signal to disconnect a power supply loop of the common power unit and start the standby power unit;
the hydraulic detection circuit is used for acquiring the hydraulic condition of the engine oil in the oil tank so as to output a liquid level sampling signal;
the voltage comparison circuit is coupled with the hydraulic detection circuit and responds to the situation that the liquid level sampling signal is smaller than the set reference liquid level signal so as to output an under-voltage signal;
and the variable-frequency control circuit is coupled with the common power unit and the voltage comparison circuit and responds to the undervoltage signal to control the diesel motor to work in a variable-frequency speed regulation state.
By adopting the technical scheme, the heating condition of the diesel motor in the common power unit is collected by the temperature detection circuit, when the temperature rise causes the temperature sampling signal to be larger than the set temperature reference signal, the judgment circuit outputs a switching signal to the switching circuit to cut off the power supply of the common power unit, and simultaneously supplies power to the standby power unit to maintain the normal sailing of the ship, enables the heating common power unit to stop running and reduce the temperature, prolongs the service life of the diesel motor, and the liquid level sampling signal is output as a voltage signal by sampling the residual amount of the oil liquid for the oil tank through a hydraulic detection circuit, when the liquid level is lower than the set reference liquid level, the voltage comparison circuit responds that the sampling signal is smaller than the set reference liquid level signal to output an under-voltage signal to the variable frequency control circuit, so that the frequency of the common power unit is reduced, and the ship maintains the low-speed running condition.
The utility model is further configured to: also comprises
The integrated amplifying circuit is coupled with the hydraulic detection circuit and the voltage comparison circuit, and receives the liquid level sampling signal to output a multiplied liquid level signal;
and the trigger circuit is coupled with the voltage comparison circuit and the frequency conversion control circuit and responds to the undervoltage signal to transmit a frequency adjusting signal to the frequency conversion control circuit.
By adopting the technical scheme, the voltage signal of the liquid level sampling signal is amplified by the aid of the integrated amplifying circuit, the precision in the signal transmission process is improved, the signal loss is reduced, the subsequent trigger circuit and the switching circuit are convenient to receive and process the signal, and the accuracy of circuit signal processing is improved.
The utility model is further configured to: the temperature detection circuit comprises a thermistor temperature sensor and a thyristor amplification circuit, the thermistor temperature sensor responds to temperature change to output a temperature signal serving as a voltage signal, and the thermistor temperature sensor is connected with the thyristor amplification circuit to the input end of the integrated amplification circuit.
Through adopting above-mentioned technical scheme, make thermistor's resistance change through the change to the temperature with the help of thermistor temperature sensor, the output that can be accurate is voltage signal's temperature signal and realizes the convenience of temperature signal through thyristor amplifier circuit, matches integrated amplifier circuit, realizes the second grade and enlargies, improves signal transmission's precision.
The utility model is further configured to: the thyristor amplifying circuit comprises a power amplifier triode, the base of the power amplifier triode is connected with the output end of the thermistor temperature sensor, and a bias resistor is electrically connected between the collector and the base of the power amplifier triode.
By adopting the technical scheme, the thyristor amplifying circuit made of the power amplifier triode has the characteristics of large voltage gain, reverse phase of output voltage and input voltage and poor low-frequency performance, and the power amplifier triode is always positioned in an amplifying area through the biasing resistor, so that a temperature signal can be amplified, and the condition of cut-off distortion of the signal is avoided.
The utility model is further configured to: the switching circuit comprises a switching triode and an electromagnetic switch coupled with the common power unit and the standby power unit, and the electromagnetic switch is connected in series with a collector of the switching triode to a power supply.
Through adopting above-mentioned technical scheme, realize the switching of power unit commonly used and reserve power unit with the help of electromagnetic switch to realize control and regulation with the low-voltage weak current's mode, safer, electromagnetic switch's reaction rate is fast simultaneously, realizes the seamless connection of power unit commonly used and reserve power unit.
The utility model is further configured to: and a normally open type regulating switch is connected between the emitting electrode and the collector electrode of the switching triode.
By adopting the technical scheme, when the adjusting switch is closed, the switch triode is in short circuit, so that people can conveniently control the electromagnetic switch in a manual mode, and the ship running speed can be controlled manually.
The utility model is further configured to: the frequency conversion control circuit comprises a frequency setting circuit and a touch switch coupled with the frequency setting circuit, a reset switch is electrically connected between the touch switch and the frequency setting circuit, and a self-locking circuit used for keeping the frequency setting circuit running is electrically connected to a loop of the reset switch and the touch switch.
Through adopting above-mentioned technical scheme, through self-locking circuit, can be when the touch switch is closed, the short circuit touch switch maintains the normal work of frequency setting circuit to play frequency modulation's effect, and make things convenient for people's operation, through reset switch's setting, can carry out the unblock to self-locking circuit, realize people to the regulation of ship situation of traveling.
The utility model is further configured to: the self-locking circuit comprises a self-locking relay connected with the touch switch in series, and a controlled switch of the self-locking relay is connected with the touch switch in parallel.
Through adopting above-mentioned technical scheme, when the touch switch was closed for latching relay gets electric trigger, carries out the short circuit to the touch switch, and reaction rate is sensitive, and maneuverability is high.
In conclusion, the utility model has the following beneficial effects:
the heating condition of a diesel motor in a common power unit is collected by means of a temperature detection circuit, when the temperature rises to cause that a temperature sampling signal is greater than a set temperature reference signal, a switching signal is output to a switching circuit through a judgment circuit, the power supply of the common power unit is cut off, the standby power unit is supplied with power at the same time, the normal sailing of a ship is maintained, the common power unit which generates heat can be stopped and cooled, the service life of the diesel motor is prolonged, the allowance of oil for an oil tank is sampled through a hydraulic detection circuit, a liquid level sampling signal which is a voltage signal is output, when the liquid level is lower than the set reference liquid level, the voltage comparison circuit responds that the sampling signal is smaller than the set reference liquid level signal to output an under-voltage signal to a variable frequency control circuit, the frequency of the common power unit is reduced, and the low-speed running condition of the ship is maintained.
Drawings
FIG. 1 is a block diagram of the structure of the present invention;
FIG. 2 is a schematic circuit diagram of the temperature detection circuit of the present invention;
FIG. 3 is a schematic circuit diagram of the hydraulic sensing circuit of the present invention;
fig. 4 is a schematic circuit diagram of the variable frequency control circuit of the present invention.
In the figure: 1. a temperature detection circuit; 2. a judgment circuit; 3. a switching circuit; 4. a hydraulic pressure detection circuit; 5. A voltage comparison circuit; 6. a variable frequency control circuit; 7. an integrated amplification circuit; 8. a trigger circuit; 9. a thyristor amplification circuit; 10. a frequency setting circuit; 11. a self-locking circuit; 12. and (5) a standby power unit.
Detailed Description
The utility model is described in detail below with reference to the figures and examples.
A marine meter, as shown in fig. 1, comprising: the system comprises a temperature detection circuit 1, a judgment circuit 2, a switching circuit 3, a hydraulic pressure detection circuit 4, a voltage comparison circuit 5, a frequency conversion control circuit 6 and an integrated amplification circuit 7, wherein the temperature detection circuit 1 is used for acquiring the heating condition of a diesel motor to output a temperature sampling signal, the judgment circuit 2 is coupled with the temperature detection circuit 1 and outputs a switching signal in response to the temperature sampling signal being greater than a set temperature reference signal, the switching circuit 3 is coupled with a standby power unit 12 and a common power unit and disconnects a power supply loop of the common power unit and starts the standby power unit 12 in response to the switching signal, the hydraulic pressure detection circuit 4 is used for acquiring the hydraulic condition of engine oil in an oil tank to output a liquid level sampling signal, the voltage comparison circuit 5 is coupled with the hydraulic pressure detection circuit 4 and outputs an under-voltage signal in response to the liquid level sampling signal being less than the set reference liquid level signal, and finally, the variable-frequency control circuit 6 is coupled with the common power unit and the voltage comparison circuit 5 and responds to the undervoltage signal to control the diesel motor to work in a variable-frequency speed regulation state.
As shown in fig. 2, the temperature detection circuit 1 includes a thermistor temperature sensor and a thyristor amplification circuit 9, the thermistor temperature sensor responds to temperature changes and outputs a temperature signal as a voltage signal, the thermistor temperature sensor is connected to the thyristor amplification circuit 9 to an input end of the integrated amplification circuit 7, the thyristor amplification circuit 9 includes a power amplifier triode, a base of the power amplifier triode is connected to an output end of the thermistor temperature sensor, and a bias resistor is electrically connected between a collector and the base of the power amplifier triode.
As shown in fig. 2, the switching circuit 3 includes a switching transistor and an electromagnetic switch coupled to the normal power unit and the standby power unit 12, the electromagnetic switch is connected in series to a collector of the switching transistor to a power supply, the electromagnetic switch includes a normally-off relay KM1 and a normally-on relay KM2, a controlled switch KM1-1 and a controlled switch KM2-1 of the relay KM1 and the relay KM2 are respectively connected to a diesel motor M1 and a diesel motor M2 in the normal power unit and the standby power unit, and a normally-on regulating switch K is connected between an emitter and the collector of the switching transistor.
As shown in fig. 3, the integrated amplifying circuit 7 is coupled to the hydraulic detecting circuit 4 and the voltage comparing circuit 5, receives the liquid level sampling signal to output a liquid level signal amplified by times, and the triggering circuit 8 is coupled to the voltage comparing circuit 5 and the frequency conversion control circuit 6, and responds to the under-voltage signal to transmit the frequency adjusting signal to the frequency conversion control circuit 6, wherein the voltage comparing circuit is based on a voltage comparator, the integrated amplifying circuit 7 is an amplifying circuit based on a chip LM324 integrated operational amplifier, and the output end of the chip LM324 is connected to the inverting input end of the chip LM324 after being connected with the feedback resistor RF in series, so as to realize that the liquid level signal is amplified and output as a liquid level signal of the voltage signal, the triggering circuit 8 comprises a triode switch circuit connected to the voltage comparing circuit 5, and the inverting input end of the voltage comparing circuit 5 is connected to the power supply and the ground after being connected to the divider resistor R12 and the divider resistor R13 in series in sequence, the reference liquid level signal set by the voltage comparison circuit 5 is provided, the triode switch circuit is electrically connected to the output end of the voltage comparison circuit 5, the relay KM3 is connected in series in the triode switch circuit, the controlled switch KM3-1 of the relay KM3 is arranged in the frequency conversion control circuit 6, and the controlled switch of the relay KM3 is a single-pole double-throw switch, so that the frequency switching in the frequency conversion control circuit 6 is realized.
As shown in fig. 4, the frequency conversion control circuit 6 includes a frequency setting circuit 10 and a touch switch coupled to the frequency setting circuit 10, a reset switch is electrically connected between the touch switch and the frequency setting circuit 10, a self-locking circuit 11 is electrically connected to a loop of the reset switch and the touch switch for keeping the frequency setting circuit 10 operating, wherein, the self-locking circuit 11 comprises a self-locking relay connected with a touch switch in series, a controlled switch of the self-locking relay is connected with the touch switch in parallel, specifically, the frequency setting circuit 10 adopts a PI7600 series frequency converter, and an adjustable potentiometer is connected among the +10V end, the ALL end and the GND end of the frequency converter, and the adjusting end of the adjustable potentiometer is connected to the ALL end at a controlled switch KM3-1 of a relay KM3, so that when the relay KM3 is triggered, the change of the resistance value is adjusted, so that the effect of frequency modulation supply is achieved, and the rotating speed of a diesel motor in the common power set is adjusted.
The working process is as follows: when a ship runs, the common power unit keeps an electric working state, when the diesel motor in the common power unit generates heat due to long-time running, when the temperature change is detected by a thermistor sensor in the temperature detection circuit 1, a temperature signal which is a voltage signal can be output, secondary amplification is carried out through the thyristor amplification circuit 9 and the integrated amplification circuit 7, the voltage change generated by the temperature change is transmitted to the judgment circuit 2 under the condition of ensuring no distortion and is compared with a reference temperature signal, when a temperature sampling signal is greater than the reference temperature signal, an electromagnet is electrified and actuated to trigger, the relay KM1 is disconnected and the relay KM2 is closed, and as controlled switches of the relay KM1 and the relay KM2 are respectively connected to power supply loop examples of the diesel motor of the common power unit and the standby power unit 12, the common power unit is powered off and stops running, the cooling maintenance is carried out, the practical service life of the common power unit is prolonged, the standby power unit 12 is powered on to run simultaneously, the ship is kept to run orderly and stably, and the normal running of the voyage is not influenced.
When the oil in the oil tank is gradually consumed along with the operation of the diesel motor, the liquid level of the oil in the oil tank is detected by the liquid level detection circuit, so that the residual amount of the oil is known, when the liquid level is lower than the set liquid level, the liquid level sampling signal is lower than the set reference liquid level signal, the voltage comparison circuit 5 outputs a high level signal, the relay KM3 is electrically triggered, so that the resistance value of the adjustable potentiometer is adjusted to achieve the frequency modulation effect of the frequency converter, the rotating speed of the diesel motor is reduced, the low-speed front line of the ship is maintained, when people find that the running speed of the ship changes, the oil can be timely injected into the oil tank to maintain the stable running of the ship, the manual adjustment of the running speed of the ship can be realized by the adjusting switch K, the frequency converter is connected with the touch switch and the reset switch, when people want to start the automatic speed regulation function of the ship, the relay KM4 in the self-locking circuit 11 can be triggered by electricity only by pressing the touch switch, the touch switch is short-circuited, the work of the frequency converter is maintained, and when the frequency converter is to be closed, the reset switch is triggered only, so that the relay KM4 is powered off and released, the controlled switch KM4-1 is disconnected, and the initial condition is recovered.
The above description is only a preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments, and all technical solutions belonging to the idea of the present invention belong to the protection scope of the present invention. It should be noted that modifications and embellishments within the scope of the utility model may occur to those skilled in the art without departing from the principle of the utility model, and are considered to be within the scope of the utility model.
Claims (8)
1. A marine instrument, characterized by: the method comprises the following steps:
the temperature detection circuit (1) is used for acquiring the heating condition of the diesel motor to output a temperature sampling signal;
the judging circuit (2) is coupled with the temperature detection circuit (1) and responds to the fact that the temperature sampling signal is larger than the set temperature reference signal to output a switching signal;
the switching circuit (3) is coupled with the standby power unit (12) and the common power unit and responds to a switching signal to disconnect a power supply loop of the common power unit and start the standby power unit (12);
the hydraulic detection circuit (4) is used for acquiring the hydraulic condition of the engine oil in the oil tank so as to output a liquid level sampling signal;
the voltage comparison circuit (5) is coupled with the hydraulic detection circuit (4) and responds to the situation that the liquid level sampling signal is smaller than the set reference liquid level signal to output an under-voltage signal;
and the frequency conversion control circuit (6) is coupled with the common power unit and the voltage comparison circuit (5) and responds to the undervoltage signal to control the diesel motor to work in a frequency conversion speed regulation state.
2. A marine meter according to claim 1, wherein: also comprises
The integrated amplification circuit (7) is coupled with the hydraulic detection circuit (4) and the voltage comparison circuit (5) and is used for receiving the liquid level sampling signal to output a liquid level signal amplified in multiples;
and the trigger circuit (8) is coupled with the voltage comparison circuit and the variable frequency control circuit (6) and responds to the undervoltage signal to convey a frequency adjusting signal to the variable frequency control circuit (6).
3. A marine meter according to claim 2, wherein: the temperature detection circuit (1) comprises a thermistor temperature sensor and a thyristor amplification circuit (9), the thermistor temperature sensor responds to temperature change and outputs a temperature signal serving as a voltage signal, and the thermistor temperature sensor is connected with the thyristor amplification circuit (9) to the input end of the integrated amplification circuit (7).
4. A marine meter according to claim 3, wherein: the thyristor amplifying circuit (9) comprises a power amplifier triode, the base of the power amplifier triode is connected with the output end of the thermistor temperature sensor, and a bias resistor is electrically connected between the collector and the base of the power amplifier triode.
5. A marine meter according to claim 1, wherein: the switching circuit (3) comprises a switching triode and an electromagnetic switch coupled with the common power unit and the standby power unit (12), and the electromagnetic switch is connected in series with a collector of the switching triode to a power supply.
6. A marine meter according to claim 5, characterised in that: and a normally open type regulating switch is connected between the emitting electrode and the collector electrode of the switching triode.
7. A marine meter according to claim 1, wherein: the variable frequency control circuit (6) comprises a frequency setting circuit (10) and a touch switch coupled with the frequency setting circuit (10), a reset switch is electrically connected between the touch switch and the frequency setting circuit (10), and a self-locking circuit (11) used for keeping the frequency setting circuit (10) running is electrically connected to a loop of the reset switch and the touch switch.
8. A marine meter according to claim 7, wherein: the self-locking circuit (11) comprises a self-locking relay connected with the touch switch in series, and a controlled switch of the self-locking relay is connected with the touch switch in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121169630.3U CN215601218U (en) | 2021-05-27 | 2021-05-27 | Marine instrument |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121169630.3U CN215601218U (en) | 2021-05-27 | 2021-05-27 | Marine instrument |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN215601218U true CN215601218U (en) | 2022-01-21 |
Family
ID=79873856
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202121169630.3U Expired - Fee Related CN215601218U (en) | 2021-05-27 | 2021-05-27 | Marine instrument |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN215601218U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117220390A (en) * | 2023-11-09 | 2023-12-12 | 深圳市普兰斯通科技有限公司 | Charging circuit of charger and charger |
-
2021
- 2021-05-27 CN CN202121169630.3U patent/CN215601218U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117220390A (en) * | 2023-11-09 | 2023-12-12 | 深圳市普兰斯通科技有限公司 | Charging circuit of charger and charger |
| CN117220390B (en) * | 2023-11-09 | 2024-01-26 | 深圳市普兰斯通科技有限公司 | Charging circuit of charger and charger |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN215601218U (en) | Marine instrument | |
| US20230406133A1 (en) | Temperature control protection device and corresponding charging device | |
| CN107178493A (en) | A kind of urea pump detecting system | |
| CN111564879A (en) | Automobile low-voltage energy management device and method | |
| CN101924343B (en) | Multifunctional circuit for controlling and protecting switching apparatus | |
| CN203759564U (en) | Double closed-loop temperature control circuit | |
| US8098378B2 (en) | Energy-efficient operating method for a gas sensor | |
| EP1650820A4 (en) | Fuel cell optimum operation point tracking system in power supply device using fuel cell, and power supply device provided with this fuel cell optimum operation point tracking system | |
| CN105891591B (en) | A kind of large power energy storage inverter current detecting and controlling system | |
| CN205209650U (en) | Temperature -detecting device and barbecue utensil | |
| CN206835096U (en) | A kind of fibre optic modem with warning function | |
| CN202903887U (en) | Nitrogen-oxygen sensor heating detection circuit | |
| CN203423638U (en) | Soft starter for direct current motor | |
| CN215185838U (en) | Marine low-voltage high-power direct-current intelligent power distribution module | |
| CN214590562U (en) | NBIoT-based low-power-consumption acquisition controller | |
| CN212272335U (en) | Valve lift switching actuating mechanism and engine with variable valve lift | |
| CN211506202U (en) | Integrated chip with voltage stabilizing circuit | |
| CN204129114U (en) | Transformer electric energy meter | |
| CN113206527A (en) | Lead crystal storage battery charging equipment and method for rail transit vehicle | |
| CN210733852U (en) | Monitoring system of electric learner-driven vehicle | |
| CN209462009U (en) | A kind of temperature protection circuit of grass trimmer batteries in parallel connection packet | |
| CN209382609U (en) | A kind of additive storage vat | |
| CN207923315U (en) | Wisdom safety utilization of electric power monitoring detector temperature monitoring circuit | |
| CN102009249B (en) | Digital electricity saving device for welding machine | |
| CN200987137Y (en) | Electricity generator power coefficient auto-controller |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20220121 |