CN217282219U - Radar power supply for ship - Google Patents
Radar power supply for ship Download PDFInfo
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- CN217282219U CN217282219U CN202120920790.0U CN202120920790U CN217282219U CN 217282219 U CN217282219 U CN 217282219U CN 202120920790 U CN202120920790 U CN 202120920790U CN 217282219 U CN217282219 U CN 217282219U
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Abstract
The utility model provides a marine radar power supply, utilize the axle to take the generator to provide alternating current power supply for the radar, when trading the electricity or when abnormal outage, 24v direct current that utilize electronic switch automatic start boats and ships to provide the contravariant and provide the continuation of guaranteeing radar equipment work and go on, the mutual compensation mechanism that electrical power generating system used realizes incessant stable power supply, even boats and ships AC supply voltage constantly changes, guarantee that supply voltage variation range is between 90v-280v, 220v alternating current reliable and stable is provided for the radar, the job stabilization is reliable, the output precision is high, and small and handy, the fault rate is low, high efficiency, and convenient maintenance.
Description
Technical Field
The utility model relates to a boats and ships electrical apparatus technical field, concretely relates to marine radar power.
Background
The stable power supply is the key for ensuring the safe operation of equipment such as radars, compass and the like, and particularly has higher requirements on the power supply when the radars are started and transmitted, and the large fluctuation of the working frequency or voltage of ship electricity can possibly cause the abnormal work or even damage of the radars.
The current radar power supply has a problem that when a non-linear load applies a sine wave voltage, the current is not a sine wave, and harmonics are generated. These harmonics may cancel each other and partially overlap each other, and over-currents with high frequency harmonic components may cause overheating or burning of radar components. The radar is composed of a nonlinear load and a linear load, and the higher the ratio of the nonlinear load to the linear load, the higher the possibility of harmonic overload. The reason is specifically analyzed, high voltage can not be loaded when the transmitter breaks down easily, no echo signal is caused due to insufficient power, the receiver breaks down mainly due to unstable frequency, the antenna breaks down mainly due to unstable motor rotating speed caused by ship motion, and the parts can not be powered by the radar power supply when working normally.
The power supply reliability is very important to the normal work of radar and each part life cycle of radar, and at present marine radar mainly is supplied power by diesel generator, and the load fluctuation of radar during operation is that marine diesel generator's speed governing and pressure regulating can't match, and the impulsive load can lead to the fact serious influence for boats and ships electric power system, leads to the radar part impaired easily.
SUMMERY OF THE UTILITY MODEL
To the above problem, the utility model provides a marine radar power.
A radar power supply for a ship, comprising:
an AC power input unit for providing an AC input voltage;
the alternating current voltage stabilizing unit is connected with the power supply input unit and is used for outputting primary stable alternating current voltage;
the parallel two-way voltage stabilization AC-DC unit is connected with the alternating current voltage stabilization unit and is used for converting alternating current output by the alternating current voltage stabilization unit into direct current;
one end of the switching power supply DC-AC unit is connected with the parallel two-way voltage stabilization AC-DC unit, the other end of the switching power supply DC-AC unit is connected with the radar, and the switching power supply DC-AC unit is used for converting the direct current output by the parallel two-way voltage stabilization AC-DC unit into secondarily stable alternating current to be supplied to the radar;
the ship power input unit is connected with the switching power supply DC-AC unit and used for providing direct current input voltage;
an electronic switch for starting the ship power to supply power for the radar when the power supply voltage is lower than the rated input voltage or when the power supply is cut off is arranged between the ship power input unit and the DC-AC unit of the switching power supply.
The input of the ship electricity input unit is a storage battery.
The alternating current power supply input unit comprises a shaft belt starting host, a shaft belt starting auxiliary machine and a main distribution board, wherein the shaft belt starting host and the shaft belt starting auxiliary machine supply power for the main distribution board.
The alternating current voltage stabilizing unit is provided with a plurality of relay switches for controlling the turns of transformer coils connected into the circuit.
The alternating current voltage stabilizing unit comprises a plurality of triodes and MPUs (micro processing units) which correspond to the relay switches, collecting electrodes of the triodes are respectively connected with the corresponding relay switches, base electrodes of the triodes are connected with the MPUs, and emitting electrodes of the triodes are connected in parallel and connected with the output end.
The voltage stabilizing circuit module comprises a current detection sensor, and the current detection sensor is electrically connected with the MPU.
The voltage stabilizing circuit module comprises an input display for displaying current/voltage, and the input display is electrically connected with the MPU.
The utility model has the advantages that: the utility model discloses provide alternating current power supply by the axle belt generator when utilizing boats and ships to stabilize navigation, process the utility model discloses provide the power supply for the radar after the conversion, play the environmental protection and energy saving effect, for preventing that boats and ships from trading the electric in-process and often produce short-term outage, cause the condition that radar equipment damaged, the utility model discloses still utilize the battery that electronic switch automatic start boats and ships provided to carry out the contravariant and provide the continuation of guaranteeing equipment work and go on, the mutual compensation mechanism that electrical power generating system used realizes incessant stable power supply, even boats and ships AC supply voltage constantly changes, practice proves that supply voltage variation range is between 90v-280v, also can realize providing reliable and stable 220v alternating current for the radar. The utility model discloses job stabilization is reliable, output accuracy is high, the volume is light and handy, the fault rate is low, efficient, maintain convenient etc. and equipment uses through real ship and verifies, respond well.
Drawings
Fig. 1 is a block diagram of the design flow of the power supply system of the present invention.
Fig. 2 is a schematic circuit diagram of an embodiment of the present invention.
Fig. 3 is a circuit diagram of an ac voltage stabilizing unit according to an embodiment of the present invention.
Detailed Description
The embodiments of the present invention will be further explained with reference to the drawings.
Referring to fig. 1, for stable and normal constant-speed sailing of a ship in sailing, the power supply voltage of the shaft generator is normal and stable, the main machine of the shaft generator supplies power to the main distribution board, the internal AC110V voltage stabilization output and the internal AC220V voltage stabilization output are realized after primary voltage stabilization of the alternating current voltage stabilization unit, and the power is output to the radar stable power supply AC220V through the parallel double-path voltage stabilization AC-DC circuit, the bridge rectifier circuit and the switching power supply DC-AC circuit. When the main distribution board loses power, the electronic switch starts the ship electric storage battery to supply power for the radar equipment through the bridge rectifier circuit and the switching power supply DC-AC circuit.
Referring to fig. 2, the input end J1 of the main generator and the auxiliary generator is connected with the AC voltage stabilizing unit, AC switches SW1 and SW2 are arranged between the input end J1 and the AC voltage stabilizing unit, when SW1 is closed, SW2 is opened, the main generator provides alternating current input voltage, when SW1 is opened, SW2 is closed, the auxiliary generator provides alternating current input voltage, the alternating current voltage stabilizing unit outputs stabilized AC110V and AC220V for the requirement of power supply inside the ship, the alternating current voltage stabilizing unit is connected with the parallel two-way voltage stabilizing AC-DC unit, the parallel two-way voltage-stabilizing AC-DC unit is connected with the switching power supply DC-AC unit through the rectifier bridge, the switching power supply DC-AC unit is connected with the radar through the relay K6, when the ship sails at a stable and normal constant speed, the power supply voltage of the shaft generator is normal and stable, and the alternating voltage is supplied to the radar after primary alternating current voltage stabilization, AC-DC voltage stabilization, rectification and DC-AC inversion.
The ship power input end is connected with the switching power supply DC-AC unit through the rectifier bridge, an electronic switch SW3 is arranged between the ship power input end and the rectifier bridge, when the power supply voltage of the shaft belt generator is lower than a rated range or the power of the main engine and the auxiliary engine is changed or abnormal power failure is caused by other conditions, the electronic switch SW3 automatically starts direct current provided by the ship storage battery to rectify and DC-AC inversion to ensure that the radar equipment works continuously, and when the alternating current is normally supplied again, the direct current supply is automatically cut off within 10 s.
Referring to fig. 3, a power input terminal J1 is connected to a transformer T1, a primary coil of a transformer T1 is connected to a segment, and the segment is divided into 5 segments which are respectively connected to relay switches K1, K2, K3, K4 and K5, the bases of the relay switches K1, K2, K3, K4 and K5 are respectively connected to collectors of transistors Q1, Q2, Q3, Q4 and Q5, the bases of the transistors Q1, Q2, Q3, Q4 and Q5 are respectively connected to pins 16, 15, 12, 20 and 19 of an MPU, the emitters of the transistors Q1, Q2, Q3, Q4 and Q5 are connected in parallel to an output terminal J2, and during power switching of a host and an auxiliary machine, the relay switches control coils connected to a circuit to perform power supply in a mutually compensated turn number mode, and maintain stable voltage output. When the input voltage is 90V-115V, K1, K2, K4 and K5 do not work, and K3 works; when the input voltage is 115V-150V, K1, K4 and K5 do not work, and K2 and K3 work; when the input voltage is 150V-175V, K4 and K5 do not work, and K1, K2 and K3 work; when the input voltage is 175-220V, K5 does not work, and K1, K2, K3 and K4 work; when the input voltage is 220V-280V, K1, K2, K3, K4 and K5 work; the input display is connected to pins 8, 10, 18 of the MPU to display current/voltage. The current detection sensor is connected to pins 1 and 7 of the MPU to detect an input current.
The present embodiment has the following features:
1) applicable voltage range: the input voltage works between AC90v-280v, and the power output is stabilized to 220v +/-1.5%;
2) the actual radar is used for testing, when the input voltage is 90v, the alternating current is 3.4A, and the average power consumption is 0.3 kw; when the input voltage is 245v, the alternating current is 1.1A, and the average power consumption is 0.24 kw;
3) when the alternating voltage is lower than 90v or the power is directly cut off, the power supply can automatically start 24v direct current to work until normal power supply is realized, and the output voltage 220v is ensured to be normal and stable;
4) when the alternating voltage is cut off and the direct current supplies power to one radar, the current is about 15A, and when the alternating current supplies power normally again, the direct current supply automatically cuts off the power supply within 10 s.
The examples should not be construed as limiting the invention, and any non-inventive modifications based on the spirit of the invention should be construed as within the scope of the invention.
Claims (7)
1. A radar power supply for a ship, comprising:
an AC power input unit for providing an AC input voltage;
the alternating current voltage stabilizing unit is connected with the power input unit and is used for outputting primary stable alternating current voltage;
the parallel two-way voltage stabilization AC-DC unit is connected with the alternating current voltage stabilization unit and is used for converting alternating current output by the alternating current voltage stabilization unit into direct current;
one end of the switching power supply DC-AC unit is connected with the parallel two-way voltage stabilization AC-DC unit, and the other end of the switching power supply DC-AC unit is connected with the radar and is used for converting the direct current output by the parallel two-way voltage stabilization AC-DC unit into secondary stable alternating current to be supplied to the radar;
the ship power input unit is connected with the switching power supply DC-AC unit and used for providing direct current input voltage;
an electronic switch for starting the ship power to supply power for the radar when the power supply voltage is lower than the rated input voltage or when the power supply is cut off is arranged between the ship power input unit and the DC-AC unit of the switching power supply.
2. A radar power supply for a ship according to claim 1, wherein: the input of the ship electricity input unit is a storage battery.
3. A radar power supply for a ship according to claim 1, wherein: the alternating current power supply input unit comprises a shaft belt starting host, a shaft belt starting auxiliary machine and a main distribution board, wherein the shaft belt starting host and the shaft belt starting auxiliary machine supply power for the main distribution board.
4. A radar power supply for a ship according to claim 1, wherein: the alternating current voltage stabilizing unit is provided with a plurality of relay switches for controlling the turns of transformer coils connected into the circuit.
5. The marine radar power supply of claim 4, wherein: the alternating current voltage stabilizing unit comprises a plurality of triodes and MPUs (micro processing units) which correspond to the relay switches, collecting electrodes of the triodes are respectively connected with the corresponding relay switches, base electrodes of the triodes are connected with the MPUs, and emitting electrodes of the triodes are connected in parallel and connected with the output end.
6. A radar power supply for a ship according to claim 5, characterized in that: the alternating current voltage stabilizing unit comprises a current detection sensor, and the current detection sensor is electrically connected with the MPU.
7. A radar power supply for a ship according to claim 5, characterized in that: the alternating current voltage stabilizing unit comprises an input display for displaying current/voltage, and the input display is electrically connected with the MPU.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120920790.0U CN217282219U (en) | 2021-04-30 | 2021-04-30 | Radar power supply for ship |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202120920790.0U CN217282219U (en) | 2021-04-30 | 2021-04-30 | Radar power supply for ship |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN217282219U true CN217282219U (en) | 2022-08-23 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202120920790.0U Active CN217282219U (en) | 2021-04-30 | 2021-04-30 | Radar power supply for ship |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN217282219U (en) |
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2021
- 2021-04-30 CN CN202120920790.0U patent/CN217282219U/en active Active
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