CN205385415U - Power supply conversing device - Google Patents
Power supply conversing device Download PDFInfo
- Publication number
- CN205385415U CN205385415U CN201620040429.8U CN201620040429U CN205385415U CN 205385415 U CN205385415 U CN 205385415U CN 201620040429 U CN201620040429 U CN 201620040429U CN 205385415 U CN205385415 U CN 205385415U
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- contactor
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- phase
- power supply
- outfan
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- 238000004378 air conditioning Methods 0.000 claims abstract description 20
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- 238000005516 engineering process Methods 0.000 abstract description 6
- 238000000034 method Methods 0.000 abstract description 3
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- Rectifiers (AREA)
- Inverter Devices (AREA)
Abstract
The utility model discloses a power supply conversing device, including ac contactor, three -phase full wave bridge rectifier, reactance, PTC, main capacitance ware, control relay, converter, DCDC power module, direct current contactor and resistance, adopt DC -DC pressure build -up technique and variable frequency technology, become three -phase AC 220V50Hz mains voltage with direct current 28V power with three -phase AC 208V400Hz power switching over, for military use air conditioning equipment's three -phase compressor and full wave bridge rectifier 0 work supplies. The utility model discloses technical content height, stable performance, conversion efficiency height, good reliability, small, light in weight, the for military use air conditioning equipment of realization homoenergetic under two kinds of power supply systems of direct current 28V and interchange 208V400Hz that can be fine is normally worked to can guarantee that for military use air conditioning equipment can normally work always according to two kinds of power supply system automatic switch -over heavy current circuit.
Description
Technical field
This utility model is related to the military air-conditioning technical field that armament systems are supporting, and specifically a kind of car that carries is powered the electric power conversion apparatus of system.
Background technology
Carry the three-phase alternating current two kinds power supply system of the unidirectional current that power supply is 28V in car and 208V/400Hz, military air-conditioning equipment all energy normal operation under powering system at two kinds, and when two kinds of power supply systems switchings, air-conditioning equipment is not shut down, still normal operation.In order to meet air-conditioning dual power supply requirement, what Russia's " dongle " air-conditioning was taked is Dual-motors Driving mode, and when 28V direct current supply, system adopts exchange electric driven compression mechanism cold；AC and DC motor is by a gear-box and two clutch conversions.This Dual-motors Driving form structure is more complicated, and equipment and component count are more, and difficulty of processing is big, and product cost is higher, keeps in repair more difficult.Certain ordnance factory adopts single motor drive mode, and namely system adopts DC motor Driver compressor cooling；When Alternating Current Power Supply, convert alternating current to powered by direct current by rectifier power source.This type of drive adopts direct current direct-driving motor efficiency low, and equipment and component count are more.
Utility model content
The purpose of this utility model is the disappearance for prior art, there is provided that a kind of with high content of technology, stable performance, conversion efficiency be high, the electric power conversion apparatus of good reliability, can realize very well military air-conditioning equipment direct current 28V with exchange that 208V/400Hz two kinds powers under system all can normal operation, and can according to two kinds of system automatic switchover high-current circuits of powering, to ensure that military air-conditioning equipment can normal operation always.
The technical solution of the utility model is as follows:
A kind of electric power conversion apparatus, include A.C. contactor, three phase full wave rectification bridge, reactance, PTC, main capacitor, control relay, converter, DC/DC power module, D.C. contactor and resistance, it is characterized in that: the external three-phase alternating-current supply of input of described A.C. contactor, the outfan of A.C. contactor is connected with the input of described three phase full wave rectification bridge, described reactance is connected with terminals of described main capacitor after being in series with control relay, described PTC is connected in parallel between input and the outfan of described control relay, one outfan of described three phase full wave rectification bridge is connected with the input of described reactance, another outfan of three phase full wave rectification bridge is connected with another terminals of described main capacitor；The input external direct current power supply of described DC/DC power module, after the outfan of DC/DC power module connects described D.C. contactor, it is connected with the input of described reactance, one terminals of described resistance are connected with the shell body of described DC/DC power module, another terminals of resistance are connected with another terminals of described main capacitor after connecting described D.C. contactor；Described main capacitor is connected in parallel between two inputs of described converter, and the outfan of described converter is connected with the power input of military air-conditioning.
Described electric power conversion apparatus, it is characterised in that: the external three-phase 208V/400Hz alternating current power supply of input of described A.C. contactor.
Described electric power conversion apparatus, it is characterised in that: the external 28V DC source of input of described DC/DC power module.
Described electric power conversion apparatus, it is characterised in that: described resistance adopts 56K/3W resistance.
When three-phase 208V/400Hz alternating current power supply is powered, adopt three phase full wave rectification bridge first to be changed into direct current 300V voltage, then convert thereof into three-phase 220V/50Hz supply voltage by converter technique again；When direct current 28V power supply is powered, adopt DC-DC power module that low-voltage direct 28V voltage is converted to direct current 300V voltage, then convert thereof into three-phase 220V/50Hz supply voltage by converter technique again.Military Air-conditioner design is single system, and its compressor and outer blower fan are three-phase 220V/50Hz, and system structure is simple, reliability is high.
The beneficial effects of the utility model:
1, the military air-conditioning equipment of weapon system requirement equal normal operation under direct current 28V and three-phase alternating current 208V/400Hz two kinds powers system is thoroughly solved, and automatically switch according to power supply system, ensure that the requirement of air-conditioning equipment normal operation, and this technology is domestically leading, fill up the domestic blank that single system air-conditioning is applied in this field.
2, technology maturation, good reliability, efficiency is high, and actual measurement DC-DC power source conversion efficiency reaches 87%；Adopt forth generation converter, vector converter technology, voltage utilization is high, efficient algorithm decreases the on-off times of power model and reduces switching loss, eliminates even-order harmonic, improves Electro Magnetic Compatibility, this converter is widely used on other military air-conditioning equipments and produces in batches, stable and reliable for performance, equipment and component count are few, and maintainability is good.
3, during the work of military air-conditioning equipment, electric power conversion apparatus input power supply wave shape is symmetrical, and primary power source is pollution-free.
4, power adaptation is good, in 90%～110% scope of two kinds of supply voltages, can normally start and work.
5, volume is little, lightweight, easy for installation, it is easy to manufacture, reliable and secure.
6, electrical strength, insulation resistance, hot operation, high temperature storage, low-temperature working, low tempertaure storage, shock and vibration, damp and hot, Electro Magnetic Compatibility are satisfied by military standard of China；And having carried out the test such as low pressure, sand dust, mycete, salt fog, transportability, reliability, maintainability with load car, result also meets military standard of China.
Accompanying drawing explanation
Fig. 1 is this utility model circuit theory diagrams.
Detailed description of the invention
Referring to Fig. 1, a kind of electric power conversion apparatus, include A.C. contactor 1, three phase full wave rectification bridge 2, reactance 3, PTC4, main capacitor 5, control relay 6, converter 7, DC/DC power module 8, D.C. contactor 9 and resistance 10, the external three-phase alternating-current supply of input of A.C. contactor 1, the outfan of A.C. contactor 1 is connected with the input of three phase full wave rectification bridge 2, reactance 3 is connected with terminals of main capacitor 5 after being in series with control relay 6, PTC4 is connected in parallel between input and the outfan controlling relay 6, one outfan of three phase full wave rectification bridge 2 is connected with the input of reactance 3, another outfan of three phase full wave rectification bridge 2 is connected with another terminals of main capacitor 5；The input external direct current power supply of DC/DC power module 8, after the outfan of DC/DC power module 8 connects D.C. contactor 9, it is connected with the input of reactance 3, one terminals of resistance 10 are connected with the shell body of DC/DC power module 8, another terminals of resistance 10 are connected with another terminals of main capacitor 5 after connecting D.C. contactor 9；Main capacitor 5 is connected in parallel between two inputs of converter 7, and the outfan of converter 7 is connected with the power input of military air-conditioning.
In this utility model, the external three-phase 208V/400Hz alternating current power supply of input of A.C. contactor 1.
The external 28V DC source of input of DC/DC power module 8.
Resistance 10 adopts 56K/3W resistance.
Below in conjunction with accompanying drawing, this utility model is further described:
When three-phase alternating current 208V/400Hz power supply is powered, A.C. contactor 1 adhesive, through three phase full wave rectification bridge 2 rectification, through reactance 3 and PTC4 soft-start circuit, after treating main capacitor 5 charging, control relay 6 adhesive, PTC4 short circuit, normal offer 300V DC voltage is provided, converts three-phase 220V/50Hz supply voltage to then through converter 7；When direct current 28V powers, DC/DC power module 8 exports 300V DC voltage, D.C. contactor 9 adhesive, now three phase full wave rectification bridge 2 ends, 300V DC voltage is provided by DC/DC power module 8, owing to DC/DC power module 8 is insulating power supply, its 300V output voltage and 28V input voltage are entirely isolated, between the two pressure for exchange 500V voltage, and 28V input voltage is ground connection, for avoiding now 300V high direct voltage output to be in " floating " state, have employed a 56K/3W resistance 10 to be connected with the shell body of DC/DC power module 8, 0V reference voltage is provided for it.
This utility model can be good at realizing military air-conditioning equipment direct current 28V with exchange that 208V/400Hz two kinds powers under system all can normal operation, and when two kinds of systems of powering switch, can be automatically switched high-current circuit, it is ensured that military air-conditioning equipment can normal operation always.
Claims (4)
1. an electric power conversion apparatus, include A.C. contactor, three phase full wave rectification bridge, reactance, PTC, main capacitor, control relay, converter, DC/DC power module, D.C. contactor and resistance, it is characterized in that: the external three-phase alternating-current supply of input of described A.C. contactor, the outfan of A.C. contactor is connected with the input of described three phase full wave rectification bridge, described reactance is connected with terminals of described main capacitor after being in series with control relay, described PTC is connected in parallel between input and the outfan of described control relay, one outfan of described three phase full wave rectification bridge is connected with the input of described reactance, another outfan of three phase full wave rectification bridge is connected with another terminals of described main capacitor；The input external direct current power supply of described DC/DC power module, after the outfan of DC/DC power module connects described D.C. contactor, it is connected with the input of described reactance, one terminals of described resistance are connected with the shell body of described DC/DC power module, another terminals of resistance are connected with another terminals of described main capacitor after connecting described D.C. contactor；Described main capacitor is connected in parallel between two inputs of described converter, and the outfan of described converter is connected with the power input of military air-conditioning.
2. electric power conversion apparatus according to claim 1, it is characterised in that: the external three-phase 208V/400Hz alternating current power supply of input of described A.C. contactor.
3. electric power conversion apparatus according to claim 1, it is characterised in that: the external 28V DC source of input of described DC/DC power module.
4. electric power conversion apparatus according to claim 1, it is characterised in that: described resistance adopts 56K/3W resistance.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620040429.8U CN205385415U (en) | 2016-01-14 | 2016-01-14 | Power supply conversing device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620040429.8U CN205385415U (en) | 2016-01-14 | 2016-01-14 | Power supply conversing device |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205385415U true CN205385415U (en) | 2016-07-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620040429.8U Expired - Fee Related CN205385415U (en) | 2016-01-14 | 2016-01-14 | Power supply conversing device |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205385415U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490555A (en) * | 2016-01-14 | 2016-04-13 | 合肥天鹅制冷科技有限公司 | Power supply converter device |
-
2016
- 2016-01-14 CN CN201620040429.8U patent/CN205385415U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105490555A (en) * | 2016-01-14 | 2016-04-13 | 合肥天鹅制冷科技有限公司 | Power supply converter device |
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| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20160713 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |