CN206908530U - A kind of integral type emergency power supply inverter - Google Patents
A kind of integral type emergency power supply inverter Download PDFInfo
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- CN206908530U CN206908530U CN201720071673.5U CN201720071673U CN206908530U CN 206908530 U CN206908530 U CN 206908530U CN 201720071673 U CN201720071673 U CN 201720071673U CN 206908530 U CN206908530 U CN 206908530U
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Abstract
The utility model discloses a kind of integral type emergency power supply inverter; it includes PWM controller; control circuit is provided with PWM controller, control circuit includes chip IC 1 and the voltage startup circuit, DC transfer circuit, filter circuit, protection circuit, oscillating circuit and the output voltage feedback circuit that are sequentially connected with chip IC 1.Reliability and stability of the present utility model are high, can adapt to the demand of the steady operation under severe hot environment for a long time.
Description
Technical field
It the utility model is related to inverter technology field, more particularly to a kind of integral type emergency power supply inverter.
Background technology
Emergency power supply is designed, emergency power plant exclusively for fire-fighting equipment and the power supply of first order load or important load
It is mainly used in the departments such as skyscraper, steel industry, post and telecommunications, petrochemical industry, chemical fertilizer chemical fibre, national defence and scientific research.
Inverter is the equipment for direct current energy being transformed into alternating current, the power list that its structure is typically made up of inverter circuit
Member and inversion control unit two parts are formed, and specifically, are generally included：Pwm pulse generation circuit part, produced for controlling
Pwm pulses；Power conversion part, for input direct voltage, the arteries and veins as caused by pwm pulse generation circuit part
Duration-modulated pulse is rushed to carry out switch control, in the primary side storage energy of transformer, shut-off by the energy of storage when opening
The secondary of transformer is sent to, required various voltages are obtained after rectified filtering；Voltage feedback section, for adjustment control
Pwm circuit exports the dutycycle of pulse；Output voltage current rectifying and wave filtering circuit part, it is required for being obtained by rectifying and wave-filtering
Various voltages.
At present, what inverter system technology had been studied is more ripe, but its still there is some safety, radiating, tie
The problems such as structure is complicated, equipment heaviness.For example, in the summer that The sun is shining fiercely, roof Near Ground temperature can reach more than 60 °, inverse
Become device and face heat and the outside baking that internal power consumption is brought, if the inverter of external fan, fan accelerates inverse
Become device radiating, to ensure inverter normal work, while can ensure that internal component temperature is as low as possible, be unlikely to due to interior
Portion's device works long hours at high temperature and shortens service life；Without the inverter of external fan, in high temperature environments,
Although the section time can work, due to too high internal temperature, there is problem in the reliability and stability of product, and the life-span is also
Have a greatly reduced quality；Meanwhile the problem of downrating during high temperature also be present, have a strong impact on user's income.
In addition, existing emergency power supply inverter, also in the presence of following defect：The situation of bad environments is being faced, it is necessary to inverse
Becoming utensil has the ability that can be worked long hours under the high temperature conditions, but existing inverter common configuration is complicated, thus band
The shortcomings that performance is unstable during working long hours in high temperature environments；In addition, for may need simultaneously band capacitive, perception and
For the equipment of resistive load, existing inverter power supply is either in the adaptability to load, or is bearing motor/electricity
Appearance load on " load capacity " of caused electrical surge electric current, all seems weaker on startup.
To sum up, a kind of integral type emergency power supply inverter need to be researched and developed to make up drawbacks described above.
Utility model content
To solve drawbacks described above, the utility model proposes a kind of integral type emergency power supply inverter, its reliability and stably
Property it is high, can adapt to the demand of the steady operation under severe hot environment for a long time.
What the technical solution of the utility model was realized in：
The utility model discloses a kind of integral type emergency power supply inverter, and it includes PWM controller, is set in PWM controller
Have a control circuit, control circuit include chip IC 1 and the voltage startup circuit being sequentially connected with chip IC 1, DC transfer circuit,
Filter circuit, protection circuit, oscillating circuit and output voltage feedback circuit；Voltage startup circuit includes resistance R1, resistance R2, electricity
Hinder R3, resistance R4, triode Q1, triode Q2 and electric capacity C1；Triode Q1 grounded emitter, and triode Q1 emitter stage
Resistance R1 one end is connected to, the resistance R1 other end is connected to triode Q1 base stage, resistance R2 one end；Resistance R2's is another
One end is connected to the power switch button of PWM controller；Triode Q1 colelctor electrode is connected to resistance R3 one end；Resistance R3's
The other end is connected to resistance R4 one end, triode Q2 base stage；Triode Q2 emitter stage is connected to chip IC 1；Triode
Q2 colelctor electrode is connected to the resistance R4 other end, electric capacity C1 one end；Electric capacity C1 other end ground connection；DC transfer circuit bag
Include inductance L1, switch K1, diode D1, electric capacity C2 and resistance R5；Switch K1 one end is connected to positive source, and its other end connects
It is connected to inductance L1 one end, diode D1 one end；The diode D1 other end is connected to electric capacity C2 one end, the one of resistance R5
End；The inductance L1 other end, the electric capacity C2 other end, the resistance R5 other end are connected to power cathode；Filter circuit includes
Inductance L2, inductance L3, electric capacity C3, electric capacity C4, electric capacity C5, resistance R6 and common mode inductance TR, inductance L2 one end are connected to resistance R5
One end and diode D1 junction, its other end is connected to electric capacity C3 one end, resistance R6 one end, common mode inductance TR
First pin；Inductance L3 one end is connected to the resistance R5 other end, and its other end is connected to the electric capacity C3 other end, resistance R6
The other end, common mode inductance TR the 3rd pin；Common mode inductance TR the second pin is connected to electric capacity C4 one end；Common mode inductance
TR the 4th pin is connected to electric capacity C5 one end；The electric capacity C4 other end is connected to the electric capacity C5 other end；Oscillating circuit bag
Include triode Q3, transformer T2 and electric capacity C6；Triode Q3 base stage is connected to transformer T2 secondary coil one end；Triode
Q3 emitter stage is connected to the transformer T2 secondary coil other end；Triode Q3 colelctor electrode is connected to electric capacity C6 one end, become
Depressor T2 primary coil one end；The electric capacity C6 other ends are connected to the transformer T2 primary coil other end, and electric capacity C6 is another
End and the junction of the transformer T2 primary coil other end are grounded；Protection circuit include inductance L4, transformer T3, electric capacity C7,
Electric capacity C8, electric capacity C9, electric capacity C10, fuse F1, diode D2, static cost control diode D3 and piezo-resistance R7；Inductance L4's
One end is connected to electric capacity C4 one end, and its other end is connected to electric capacity C7 one end, transformer T3 primary coil one end；Electric capacity
The C7 other end is connected to electric capacity C5 one end, transformer T3 secondary coil one end；The transformer T3 primary coil other end
It is connected to fuse F1 one end；The fuse F1 other end is connected to diode D2 one end；The diode D2 other end connects
It is connected to static cost control diode D3 one end, piezo-resistance R7 one end, electric capacity C9 one end, electric capacity C10 one end；Transformer
The T3 secondary coil other end is connected to the static cost control diode D3 other end, the piezo-resistance R7 other end, electric capacity C10
One end of the other end, electric capacity C8；The electric capacity C8 other end is connected to the electric capacity C9 other end；Output voltage feedback circuit includes electricity
Hinder R8, resistance R9, resistance R10, electric capacity C11, diode D4 and four end photoelectrical coupler U1；Resistance R8 one end is connected to resistance
R9 one end；The resistance R9 other end is connected to resistance R10 one end, electric capacity C11 one end；Electric capacity C11 other end connection
To diode D4 one end, four end photoelectrical coupler U1 the second pin；The diode D4 other end is connected to the another of resistance R10
One end；The resistance R8 other end is connected to four end photoelectrical coupler U1 the first pin；The 4th of four end photoelectrical coupler U1 connects
Pin is connected to the electric capacity C10 other end；Four end photoelectrical coupler U1 the 3rd pin ground connection.
Wherein, triode Q3 base stage is connected to electric capacity C10 one end.
Wherein, resistance R8 and resistance R9 are connected to chip IC 1.
Wherein, control circuit further comprises reverse-connection protection circuit, and reverse-connection protection circuit is electrically connected to chip IC 1, and instead
The input for connecing protection circuit is connected to power supply, and its output end is connected to DC transfer circuit.
Compared with prior art, the utility model has the following advantages that：
The utility model is prevented from damaging integral type emergency power supply inverter because of overdischarge by protection circuit, can also realized
Overtemperature prote, guarantee is brought so as to be worked long hours to the utility model under the high adverse circumstances of environment temperature.
Brief description of the drawings
, below will be to embodiment in order to illustrate more clearly of the utility model embodiment or technical scheme of the prior art
Or the required accompanying drawing used is briefly described in description of the prior art, it should be apparent that, drawings in the following description are only
It is some embodiments of the utility model, for those of ordinary skill in the art, is not paying the premise of creative work
Under, other accompanying drawings can also be obtained according to these accompanying drawings.
Fig. 1 is the circuit diagram of the utility model voltage startup circuit.
Fig. 2 is the circuit diagram of the utility model DC transfer circuit.
The circuit diagram of the non-the utility model filter circuits of Fig. 3.
Fig. 4 is the circuit diagram of the utility model oscillating circuit.
Fig. 5 is the circuit diagram of the utility model protection circuit.
Fig. 6 is the circuit diagram of the utility model output voltage feedback circuit.
Embodiment
Below in conjunction with the accompanying drawing in the utility model embodiment, the technical scheme in the embodiment of the utility model is carried out
Clearly and completely describing, it is clear that described embodiment is only the utility model part of the embodiment, rather than whole
Embodiment.Based on the embodiment in the utility model, those of ordinary skill in the art are not under the premise of creative work is made
The every other embodiment obtained, belong to the scope of the utility model protection.
Referring to figs. 1 to Fig. 6, the utility model discloses a kind of integral type emergency power supply inverter, and it includes PWM controller,
Be provided with control circuit in PWM controller, control circuit including chip IC 1 and the voltage startup circuit being sequentially connected with chip IC 1,
DC transfer circuit, filter circuit, protection circuit, oscillating circuit and output voltage feedback circuit；Voltage startup circuit includes electricity
Hinder R1, resistance R2, resistance R3, resistance R4, triode Q1, triode Q2 and electric capacity C1；Triode Q1 grounded emitter, and three
Pole pipe Q1 emitter stage is connected to resistance R1 one end, and the resistance R1 other end is connected to triode Q1 base stage, resistance R2
One end；The resistance R2 other end is connected to the power switch button of PWM controller；Triode Q1 colelctor electrode is connected to resistance R3
One end；The resistance R3 other end is connected to resistance R4 one end, triode Q2 base stage；Triode Q2 emitter stage is connected to
Chip IC 1；Triode Q2 colelctor electrode is connected to the resistance R4 other end, electric capacity C1 one end；Electric capacity C1 other end ground connection；
DC transfer circuit includes inductance L1, switch K1, diode D1, electric capacity C2 and resistance R5；Switch K1 one end is connected to power supply
Positive pole, its other end are connected to inductance L1 one end, diode D1 one end；The diode D1 other end is connected to electric capacity C2's
One end, resistance R5 one end；The inductance L1 other end, the electric capacity C2 other end, the resistance R5 other end are connected to power supply and born
Pole；Filter circuit includes inductance L2, inductance L3, electric capacity C3, electric capacity C4, electric capacity C5, resistance R6 and common mode inductance TR, inductance L2 mono-
End is connected to resistance R5 one end and diode D1 junction, and its other end is connected to electric capacity C3 one end, the one of resistance R6
End, common mode inductance TR the first pin；Inductance L3 one end is connected to the resistance R5 other end, and its other end is connected to electric capacity C3
The other end, resistance the R6 other end, common mode inductance TR the 3rd pin；Common mode inductance TR the second pin is connected to electric capacity C4
One end；Common mode inductance TR the 4th pin is connected to electric capacity C5 one end；The electric capacity C4 other end is connected to the another of electric capacity C5
One end；Oscillating circuit includes triode Q3, transformer T2 and electric capacity C6；Triode Q3 base stage is connected to transformer T2 secondary
Coil one end；Triode Q3 emitter stage is connected to the transformer T2 secondary coil other end；Triode Q3 colelctor electrode connection
To electric capacity C6 one end, transformer T2 primary coil one end；The primary coil that the electric capacity C6 other ends are connected to transformer T2 is another
End, and the junction of the electric capacity C6 other ends and the transformer T2 primary coil other end is grounded；Protection circuit includes inductance L4, become
Depressor T3, electric capacity C7, electric capacity C8, electric capacity C9, electric capacity C10, fuse F1, diode D2, static cost control diode D3 and pressure-sensitive
Resistance R7；Inductance L4 one end is connected to electric capacity C4 one end, its other end be connected to electric capacity C7 one end, transformer T3 just
Level coil one end；The electric capacity C7 other end is connected to electric capacity C5 one end, transformer T3 secondary coil one end；Transformer T3's
The primary coil other end is connected to fuse F1 one end；The fuse F1 other end is connected to diode D2 one end；Two poles
The pipe D2 other end is connected to static cost control diode D3 one end, piezo-resistance R7 one end, electric capacity C9 one end, electric capacity
C10 one end；The transformer T3 secondary coil other end is connected to the static cost control diode D3 other end, piezo-resistance R7
The other end, the electric capacity C10 other end, electric capacity C8 one end；The electric capacity C8 other end is connected to the electric capacity C9 other end；Output electricity
Pressure feedback circuit includes resistance R8, resistance R9, resistance R10, electric capacity C11, diode D4 and four end photoelectrical coupler U1；Resistance R8
One end be connected to resistance R9 one end；The resistance R9 other end is connected to resistance R10 one end, electric capacity C11 one end；Electric capacity
The C11 other end is connected to diode D4 one end, four end photoelectrical coupler U1 the second pin；The diode D4 other end connects
It is connected to the resistance R10 other end；The resistance R8 other end is connected to four end photoelectrical coupler U1 the first pin；Four end photoelectricity couplings
Clutch U1 the 4th pin is connected to the electric capacity C10 other end；Four end photoelectrical coupler U1 the 3rd pin ground connection.This practicality is new
Type triode Q3 base stage is connected to electric capacity C10 one end.The utility model resistance R8 and resistance R9's is connected to chip IC 1.
Wherein, control circuit further comprises reverse-connection protection circuit, and reverse-connection protection circuit is electrically connected to chip IC 1, and instead
The input for connecing protection circuit is connected to power supply, and its output end is connected to DC transfer circuit.The utility model reverse connecting protection electricity
Road is the circuit that those skilled in the art commonly use, and it can prevent reversal connection, and the utility model integral type emergency power supply inverter is risen
To protective effect.
The utility model voltage startup circuit provides enabling signal by chip IC 1 for PWM controller.The utility model is filtered
Wave circuit has two-way buffer action, and it can suppress the interference signal from AC network input, while when being also prevented from power work
Caused harmonic wave and electromagnetic interference signal influence AC network；Inductance L2.Inductance L3 and electric capacity C3 forms first order filtering, common mode
Inductance TR and electric capacity C4, electric capacity C5 carry out second level filtering；Electric capacity C3 is mainly used to filter out DM EMI, and it selects high frequency characteristics
Preferable thin-film capacitor.Resistance R6 provides discharge loop to electric capacity C3, avoids because the charge accumulated on electric capacity C3 influences wave filter
Working characteristics.
The utility model fuse F1 is used to provide safeguard protection, and those skilled in the art choose guarantor according to the actual requirements
Dangerous silk F1 specified input current.The utility model electric capacity C7 is electrochemical capacitor, and it has two effects：1. absorb the electricity of input
Pointing peak, 2. when occurring voltage transient on input, there is provided the maintenance voltage of certain time.The utility model piezo-resistance R7
For suppressing high pressure spike caused by primary power source, to protect the safe and reliable of input.LC wave filters have product to transient energy
It is allocated as using, and Transient Suppression Diode can cut down peak voltage.The utility model inductance L4 is common mode filtering inductance, filters out input
The common-mode noise at end.
The utility model output voltage feedback circuit by diode D4 and four end photoelectrical couplers, adjustable resistor R9 and
Resistance R10 output reaches the higher precision of voltage regulation, if exported to the voltage liter of protection circuit to the voltage of protection circuit
Height, the electric current increase of diode D4 negative electrodes to anode, four end photoelectrical couplers is exported to the electric current increase of triode, export arteries and veins
Width accordingly narrows, therefore reduces output to the voltage of protection circuit；Opposite, can if output to the voltage of protection circuit reduces
It is allowed to raise by feedback regulation.
Preferred embodiment of the present utility model is the foregoing is only, it is all at this not to limit the utility model
Within the spirit and principle of utility model, any modification, equivalent substitution and improvements made etc., the utility model should be included in
Protection domain within.
Claims (4)
1. a kind of integral type emergency power supply inverter, it is characterised in that it includes PWM controller, and control is provided with PWM controller
Circuit, control circuit include chip IC 1 and the voltage startup circuit being sequentially connected with chip IC 1, DC transfer circuit, filtered electrical
Road, protection circuit, oscillating circuit and output voltage feedback circuit；
Voltage startup circuit includes resistance R1, resistance R2, resistance R3, resistance R4, triode Q1, triode Q2 and electric capacity C1；Three
Pole pipe Q1 grounded emitter, and triode Q1 emitter stage is connected to resistance R1 one end, the resistance R1 other end is connected to
Triode Q1 base stage, resistance R2 one end；The resistance R2 other end is connected to the power switch button of PWM controller；Three poles
Pipe Q1 colelctor electrode is connected to resistance R3 one end；The resistance R3 other end is connected to resistance R4 one end, triode Q2 base
Pole；Triode Q2 emitter stage is connected to chip IC 1；Triode Q2 colelctor electrode is connected to the resistance R4 other end, electric capacity C1
One end；Electric capacity C1 other end ground connection；
DC transfer circuit includes inductance L1, switch K1, diode D1, electric capacity C2 and resistance R5；Switch K1 one end is connected to
Positive source, its other end are connected to inductance L1 one end, diode D1 one end；The diode D1 other end is connected to electric capacity
C2 one end, resistance R5 one end；The inductance L1 other end, the electric capacity C2 other end, the resistance R5 other end are connected to electricity
Source negative pole；
Filter circuit includes inductance L2, inductance L3, electric capacity C3, electric capacity C4, electric capacity C5, resistance R6 and common mode inductance TR, inductance L2
One end is connected to resistance R5 one end and diode D1 junction, and its other end is connected to electric capacity C3 one end, resistance R6
One end, common mode inductance TR the first pin；Inductance L3 one end is connected to the resistance R5 other end, and its other end is connected to electric capacity
The C3 other end, the resistance R6 other end, common mode inductance TR the 3rd pin；Common mode inductance TR the second pin is connected to electric capacity
C4 one end；Common mode inductance TR the 4th pin is connected to electric capacity C5 one end；The electric capacity C4 other end is connected to electric capacity C5's
The other end；
Oscillating circuit includes triode Q3, transformer T2 and electric capacity C6；Triode Q3 base stage is connected to transformer T2 secondary
Coil one end；Triode Q3 emitter stage is connected to the transformer T2 secondary coil other end；Triode Q3 colelctor electrode connection
To electric capacity C6 one end, transformer T2 primary coil one end；The primary coil that the electric capacity C6 other ends are connected to transformer T2 is another
End, and the junction of the electric capacity C6 other ends and the transformer T2 primary coil other end is grounded；
Protection circuit includes inductance L4, transformer T3, electric capacity C7, electric capacity C8, electric capacity C9, electric capacity C10, fuse F1, diode
D2, static cost control diode D3 and piezo-resistance R7；Inductance L4 one end is connected to electric capacity C4 one end, and its other end is connected to
Electric capacity C7 one end, transformer T3 primary coil one end；The electric capacity C7 other end is connected to electric capacity C5 one end, transformer T3
Secondary coil one end；The transformer T3 primary coil other end is connected to fuse F1 one end；The fuse F1 other end
It is connected to diode D2 one end；The diode D2 other end is connected to static cost control diode D3 one end, piezo-resistance R7
One end, electric capacity C9 one end, electric capacity C10 one end；The transformer T3 secondary coil other end is connected to the pole of static cost control two
The pipe D3 other end, the piezo-resistance R7 other end, the electric capacity C10 other end, electric capacity C8 one end；The electric capacity C8 other end connects
It is connected to the electric capacity C9 other end；
Output voltage feedback circuit includes resistance R8, resistance R9, resistance R10, electric capacity C11, diode D4 and four end photoelectric couplings
Device U1；Resistance R8 one end is connected to resistance R9 one end；The resistance R9 other end is connected to resistance R10 one end, electric capacity C11
One end；The electric capacity C11 other end is connected to diode D4 one end, four end photoelectrical coupler U1 the second pin；Diode
The D4 other end is connected to the resistance R10 other end；What the resistance R8 other end was connected to four end photoelectrical coupler U1 first connects
Pin；Four end photoelectrical coupler U1 the 4th pin is connected to the electric capacity C10 other end；Four end photoelectrical coupler U1 the 3rd pin
Ground connection.
2. integral type emergency power supply inverter as claimed in claim 1, it is characterised in that triode Q3 base stage is connected to electricity
Hold C10 one end.
3. integral type emergency power supply inverter as claimed in claim 2, it is characterised in that resistance R8 is connected to resistance R9's
Chip IC 1.
4. integral type emergency power supply inverter as claimed in claim 3, it is characterised in that control circuit further comprises reversal connection
Protection circuit, reverse-connection protection circuit is electrically connected to chip IC 1, and the input of reverse-connection protection circuit is connected to power supply, and it is exported
End is connected to DC transfer circuit.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720071673.5U CN206908530U (en) | 2017-01-19 | 2017-01-19 | A kind of integral type emergency power supply inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201720071673.5U CN206908530U (en) | 2017-01-19 | 2017-01-19 | A kind of integral type emergency power supply inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN206908530U true CN206908530U (en) | 2018-01-19 |
Family
ID=61295028
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201720071673.5U Expired - Fee Related CN206908530U (en) | 2017-01-19 | 2017-01-19 | A kind of integral type emergency power supply inverter |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN206908530U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112737311A (en) * | 2020-12-21 | 2021-04-30 | 中国北方发动机研究所(天津) | Filter circuit |
-
2017
- 2017-01-19 CN CN201720071673.5U patent/CN206908530U/en not_active Expired - Fee Related
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112737311A (en) * | 2020-12-21 | 2021-04-30 | 中国北方发动机研究所(天津) | Filter circuit |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180119 Termination date: 20190119 |
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| CF01 | Termination of patent right due to non-payment of annual fee |