CN2328124Y - Uninterruption A.C. power source - Google Patents
Uninterruption A.C. power source Download PDFInfo
- Publication number
- CN2328124Y CN2328124Y CN 97215975 CN97215975U CN2328124Y CN 2328124 Y CN2328124 Y CN 2328124Y CN 97215975 CN97215975 CN 97215975 CN 97215975 U CN97215975 U CN 97215975U CN 2328124 Y CN2328124 Y CN 2328124Y
- Authority
- CN
- China
- Prior art keywords
- power supply
- power source
- motor
- alternating current
- current generator
- 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
Abstract
The utility model discloses an AC power source device which has the uninterruption performance. The AC power source device is composed of a DC motor, a fly wheel, an AC generator, an elastic coupling, a bearing seat, a base, a protective cover, and a vibration isolator. The AC generator still can continuously supply power for the electric equipment which adopts the AC under the condition that the DC power source used by the DC motor fails for a short time. The utility model has the advantages of low investment, favorable performance, simple device, energy consumption saving, etc. The existing AC power source problem that the cold and warm air conditioner of the household and other electric equipment which uses the AC as the power are used as the bus electric vehicle, the mine electric vehicle, and the electric locomotive is solved.
Description
The utility model is a kind of supply unit, and it relates to a kind of ac power supply apparatus, specially refers to a kind of uninterrupted power supply ac power supply apparatus.It can be converted into the frequent direct current power supply of dead electricity in short-term the AC power of uninterrupted supply, with solving the alternating electromotive force supply problem that uses family's air conditioner and other electric equipments in electric car of public traffic, mining electric car and electric locomotive.
Stable development along with Chinese national economy, improving constantly of living standards of the people, dress has been mentioned agenda with air-conditioning on electric car of public traffic, but the air-conditioning that is suitable for Electric does not at present also come out, can only on electric car, adorn and use bus air conditioner, be equipped with DC motor and drive compressor of air conditioner, taking the lead in from 1994 at several electric car of public traffic as Guangzhou electric car company is exactly so to implement.The shortcoming of this method is: price is expensive, operating reliability is poor, and air conditioner is a single cold type.For solving heating problem, the Shanghai second electric car company adopts when dress is with motor bus single cold type air conditioner, installs a cover again additional and utilizes galvanic electric heating ventilation equipment, makes like this that whole device becomes very complicated, fail safe is also poor, therefore, they all lack application value.If can adorn with the family expenses cooling and heating air conditioner then the problems referred to above will be resolved, but this brings new technical problem again, i.e. the powerup issue of domestic air conditioner.Because ought directly utilize the electrical network of public electric car to drive the alternating current generator power supply by DC motor, when electric car is changed by cross wire or different power supply network, direct current fails to be convened for lack of a quorum and interrupts in short-term, and this what interrupt in short-term is very frequent, so just influences the normal use of domestic air conditioner.Therefore, how frequently the direct current power supply of dead electricity in short-term is converted into the AC power of uninterrupted supply, then is prior art an open question still.
The purpose of this utility model just is to overcome the shortcoming of prior art, a kind of uninterrupted power supply ac power supply apparatus is provided, the frequent direct current power supply of dead electricity in short-term is converted into the AC power of uninterrupted power supply, to solve the alternating electromotive force supply problem that in electric car of public traffic, mining electric car and electric locomotive, uses domestic air conditioner and other electric equipments.
The purpose of this utility model is achieved in that it comprises DC motor, alternating current generator, the bearing pedestal that is fixed on the common bed, is characterized in that: DC motor connects driving alternating current generator and flywheel by shaft coupling.
The utility model also has following feature:
(1) base is connected with vehicle chassis by isolator;
(2) alternating current generator is furnished with and can makes the modulation of its PWM-OMOS pulsewidth excitation that keeps output voltage stabilization in rated speed 75%～11% scope.
Because the utility model adopts flywheel energy storage and has the modulation of PWM-OMOS pulsewidth excitation, when the electric car power lead-ining line by the conversion of cross wire or different power supply network the time, DC power supply is interrupted in short-term, this moment, the mechanical energy of storage flywheel discharged, form the applying working condition of flywheel with the inertia-activated generator powered, this moment, rotating speed had decline slightly, because alternating current generator is furnished with the modulation of PWM-OMOS pulsewidth excitation, can keep ac output voltage constant substantially, the continuous normal operation that still can keep domestic air conditioner, when the electric car power lead-ining line by cross wire or after finishing the conversion of different power supply networks, direct current power recovers regular supply again, forms the normal applying working condition that DC motor drives alternating current generator and flywheel rotation again.So just realized goal of the invention of the present utility model.Simultaneously, because the utility model is provided with isolator, like this, both guaranteed that electric supply installation avoided the influence that Vehicular vibration impacts, vibration and the unlikely compartment that is passed to of noise that this electric supply installation is produced in the running improve the compartment driving comfort.
Below in conjunction with accompanying drawing, further set forth concrete enforcement of the present utility model.
When Fig. 1 is two ends output for DC motor, a kind of structural representation of the present utility model
When Fig. 2 is the single-ended output of DC motor, another kind of structural representation of the present utility model
Embodiment one, when DC motor is two ends output.
Seeing also Fig. 1 the utility model comprises: DC motor 3, alternating current generator 1, shaft coupling 2, bearing pedestal 4, flywheel 5, isolator 6, base 7, protective cover 8, wherein DC motor 3 is two ends output, and alternating current generator 1 and flywheel 5 are separately positioned on its two outputs by shaft coupling 2 and are driven by it; Shaft coupling 2 is preferably selected a kind of spring coupling for use, to improve serviceability.Alternating current generator 1, DC motor 3, bearing pedestal 4 and protective cover 8 all are fixed on the common bed 7; alternating current generator 1 is furnished with the modulation of PWM-OMOS pulsewidth excitation; make alternating current generator output voltage in rated speed 75%～110% scope keep stable; the moment of inertia of flywheel 5 can be selected according to actual needs; for electric car of public traffic, be typically chosen in can keep 5 second inertia promptly passable.For keeping supply unit not impacted by Vehicular vibration and raising vehicle driving comfort, base 7 is connected with vehicle chassis by isolator 6.
Embodiment two: when DC motor is single-ended output
See also Fig. 2, be not difficult to find out that from Fig. 2 it is compared with embodiment one, remove because of motor 3 be single-ended output, therefore alternating current generator 1 and flywheel 5 are arranged on by spring coupling 2 outside the same end of DC motor 3, and the annexation of miscellaneous part is basic identical with example one.This is not difficult to implement to this professional people, therefore repeats no more.
Sketch use principle of the present utility model below.
The electric car direct current input voltage reaches or during near rated value, direct current machine reaches or rotates near rated speed (being generally 1500r/min), and driving alternating current generator and flywheel rotation, this moment, alternating current generator sent three-phase 380V or single-phase 220V, frequency is 50HZ or uses for domestic air conditioner near the alternating current of 50HZ that flywheel is then laid in mechanical energy.When the electric car power lead-ining line by the conversion of cross wire or different power supply grid the time, DC power supply is interrupted in short-term, this moment, storage flywheel mechanical energy discharged, and drove alternating current generator and can keep ac output voltage to remain unchanged substantially, made the normal continuously operation of air conditioner.After the electric car power lead-ining line was by cross wire or the conversion of different power supply network, direct current power recovered regular supply again.Go round and begin again, make the domestic air conditioning function on electric car of public traffic, be kept normal operation.Thereby reduced cost, saved the energy, running has been safe and reliable, and be convenient to maintenance.
Claims (3)
1. a uninterrupted power supply ac power supply apparatus comprises the DC motor, alternating current generator, the bearing pedestal that are fixed on the base, it is characterized in that: DC motor connects and driving alternating current generator and flywheel by shaft coupling.
2. ac power supply apparatus as claimed in claim 1 is characterized in that: base is connected with vehicle chassis by isolator.
3. ac power supply apparatus as claimed in claim 1 is characterized in that: alternating current generator is furnished with can make its output voltage in 75%～110% scope of rated speed keep stable PWM-OMOS pulsewidth excitation modulation.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97215975 CN2328124Y (en) | 1997-05-20 | 1997-05-20 | Uninterruption A.C. power source |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 97215975 CN2328124Y (en) | 1997-05-20 | 1997-05-20 | Uninterruption A.C. power source |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN2328124Y true CN2328124Y (en) | 1999-07-07 |
Family
ID=33932988
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 97215975 Expired - Fee Related CN2328124Y (en) | 1997-05-20 | 1997-05-20 | Uninterruption A.C. power source |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN2328124Y (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208830A (en) * | 2011-03-22 | 2011-10-05 | 艾默生网络能源有限公司 | Hybrid uninterruptible power supply system |
-
1997
- 1997-05-20 CN CN 97215975 patent/CN2328124Y/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102208830A (en) * | 2011-03-22 | 2011-10-05 | 艾默生网络能源有限公司 | Hybrid uninterruptible power supply system |
| CN102208830B (en) * | 2011-03-22 | 2015-02-11 | 艾默生网络能源有限公司 | Hybrid uninterruptible power supply system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C19 | Lapse of patent right due to non-payment of the annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |