CN205490133U - Inverter - Google Patents
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- CN205490133U CN205490133U CN201521140617.XU CN201521140617U CN205490133U CN 205490133 U CN205490133 U CN 205490133U CN 201521140617 U CN201521140617 U CN 201521140617U CN 205490133 U CN205490133 U CN 205490133U
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- inversion module
- electromagnetic device
- switching tube
- igbt inversion
- igbt
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Abstract
The utility model provides an inverter, passes through set up in the inverter to two independences and a same electromagnetic device and the 2nd electromagnetic device of specification, through control a IGBT contravariant module and the 2nd IGBT contravariant module respectively to an electromagnetic device and the opposite drive signal of the 2nd electromagnetic device output phase can make an electromagnetic device is the same with the amplitude with the frequency of the electromagnetism noise that the 2nd electromagnetic device produced to those skilled in the art can further make through the position of adjusting two electromagnetic device the electromagnetism noise cancel each other out that an electromagnetic device and the 2nd electromagnetic device produced, and by the electromagnetic radiation that an electromagnetic device and the 2nd electromagnetic device magnetic leakage cause also has the cancel each other out of certain degree, consequently need not to adopt sound absorbing material, compares in the prior art cost lowerly.
Description
Technical field
This utility model relates to inverter technology field, more particularly, it relates to a kind of inverter.
Background technology
There is power frequency and the electromagnetic noise of switch high-frequency and electric and magnetic oscillation in existing high-power inverter, at present,
Be typically employed in the structure of inverter add sound-absorbing deadener with solve high-power inverter power frequency and
The electromagnetic noise of switch high-frequency and electric and magnetic oscillation, thus realize passive noise reduction.But, owing to increasing sound-absorbing
Material relatively costly, causes the body relatively costly, overall of the high-power inverter using the method to produce
Long-pending big, and use the method poor for low frequency part noise reduction.
Utility model content
The purpose of this utility model is to provide a kind of inverter, is used for solving to reduce in prior art inversion
When device noise and vibration, relatively costly problem.
For achieving the above object, this utility model embodiment provides following technical scheme:
A kind of inverter, including inversion module, described inverter also includes at least one blood pressure lowering isolation module,
The outfan of described blood pressure lowering isolation module is connected with described inversion module, and described blood pressure lowering isolation module includes:
Oneth IGBT inversion module, and the first electricity being connected with the outfan of a described IGBT inversion module
Magnetic device；
2nd IGBT inversion module, and the second electricity being connected with the outfan of described 2nd IGBT inversion module
Magnetic device；
A described IGBT inversion module and the input serial or parallel connection of described 2nd IGBT inversion module,
As described blood pressure lowering isolation mode after the outfan parallel connection of described first electromagnetic device and described second electromagnetic device
The outfan of block；
A described IGBT inversion module is identical with the circuit of described 2nd IGBT inversion module and output is electric
The opposite in phase of pressure；Described first electromagnetic device is identical with the specification of described second electromagnetic device.
Preferably, in above-mentioned inverter, a described IGBT inversion module and described 2nd IGBT inversion mould
Block all includes that switching tube, the distance between described first electromagnetic device and described second electromagnetic device are described
The integral multiple of switching tube switching frequency electromagnetic noise wavelength.
Preferably, in above-mentioned inverter, described first electromagnetic device and described second electromagnetic device are arranged on
On same support.
Preferably, in above-mentioned inverter, described electromagnetic device is reactor or transformator.
Preferably, in above-mentioned inverter, described first electromagnetic device and described second electromagnetic device are change
During depressor, described blood pressure lowering isolation module also includes:
The first rectification circuit being connected with described first electromagnetic device outfan, described first rectification circuit
Outfan is connected with described inversion module；
The second rectification circuit being connected with described second electromagnetic device outfan, described first rectification circuit
Outfan is connected with described inversion module.
Preferably, in above-mentioned inverter, described first rectification circuit and the second rectification circuit are bridge rectifier
Circuit.
Preferably, in above-mentioned inverter, a described IGBT inversion module and the 2nd IGBT inversion module are equal
For H-bridge inverter circuit；
Described H-bridge inverter circuit includes:
First switching tube branch road in parallel and second switch pipe branch road, described first switching tube branch road and second
Two common ports of switching tube branch road are respectively as a described IGBT inversion module and described 2nd IGBT
The positive input terminal of inversion module and negative input end；
Described first switching tube branch road and second switch pipe branch road all include:
First switching tube of series connection and second switch pipe；Second end of described first switching tube and second switch
First end of pipe is connected, and the second end of the first end of described first switching tube and second switch pipe is as institute
State the first switching tube and the common port of second switch pipe；
With the first diode of described first switching tube reverse parallel connection, the anode of the first diode and described the
Second end of one switching tube is connected；
With the second diode of described second switch pipe reverse parallel connection, the anode of described second diode and institute
The second end stating second switch pipe is connected；
The common port of the first switching tube and second switch pipe described in described first switching tube branch road respectively as
A described IGBT inversion module and the positive output end of described 2nd IGBT inversion module, described second switch
The common port of the first switching tube and second switch pipe described in pipe branch road is respectively as a described IGBT inversion
Module and the negative output terminal of described 2nd IGBT inversion module；
The two ends of the primary coil of described first electromagnetic device transformator respectively with a described IGBT inversion mould
Block positive output end is connected with negative output terminal, and secondary coil is connected with the input of described first rectification circuit；
The two ends of the primary coil of described second electromagnetic device transformator are respectively with described 2nd IGBT inversion module just
Outfan is connected with negative output terminal, and secondary coil is connected with the input of described second rectification circuit.
Preferably, in above-mentioned inverter, a described IGBT inversion module and the 2nd IGBT inversion module are equal
For half-bridge inversion circuit,
Described half-bridge inversion circuit includes: the 3rd switching tube of series connection and the 4th switching tube；Described 3rd opens
The first end closing the second end of pipe and the 4th switching tube is connected, and the first end of described 3rd switching tube and the
Second end of four switching tubes is respectively as a described IGBT inversion module and described 2nd IGBT inversion mould
The positive input terminal of block and negative input end；
3rd switching tube two ends reverse parallel connection the 3rd diode, the anode of described 3rd diode and described the
Second end of three switching tubes is connected；
4th switching tube two ends reverse parallel connection the 4th diode, the anode of described 4th diode and described the
Second end of four switching tubes is connected；
First end of described 4th switching tube is respectively as a described IGBT inversion module and described second
The positive output end of IGBT inversion module；Second end of described 4th switching tube is respectively as a described IGBT
Inversion module and the negative output terminal of described 2nd IGBT inversion module；
The two ends of the primary coil of described first electromagnetic device transformator respectively with a described IGBT inversion mould
The positive output end of block is connected with negative output terminal one_to_one corresponding, the secondary wire of described first electromagnetic device transformator
Circle is connected with the input of described first rectification circuit；The primary coil of described second electromagnetic device transformator
Two ends be connected with positive output end and the negative output terminal one_to_one corresponding of described 2nd IGBT inversion module respectively,
The secondary coil of described second electromagnetic device transformator is connected with the input of described second rectification circuit.
Preferably, in above-mentioned inverter, described first electromagnetic device and the second electromagnetic device are reactor,
A described IGBT inversion module and the 2nd IGBT inversion module are half-bridge inversion circuit,
Described half-bridge inversion circuit includes:
Described half-bridge inversion circuit includes: the 3rd switching tube of series connection and the 4th switching tube；Described 3rd opens
The first end closing the second end of pipe and the 4th switching tube is connected, and the first end of described 3rd switching tube and the
Second end of four switching tubes is respectively as a described IGBT inversion module and described 2nd IGBT inversion mould
The positive input terminal of block and negative input end；
3rd switching tube two ends reverse parallel connection the 3rd diode, the anode of described 3rd diode and described the
Second end of three switching tubes is connected；
4th switching tube two ends reverse parallel connection the 4th diode, the anode of described 4th diode and described the
Second end of four switching tubes is connected；
First end of described 4th switching tube is respectively as a described IGBT inversion module and described second
The positive output end of IGBT inversion module；Second end of described 4th switching tube is respectively as a described IGBT
Inversion module and the negative output terminal of described 2nd IGBT inversion module；
First end of described first electromagnetic device reactor and the positive output end of a described IGBT inversion module
Be connected, the second end is connected with described inversion module, the first end of described second electromagnetic device reactor and institute
The positive output end stating the 2nd IGBT inversion module is connected, the second end is connected with described inversion module.
Preferably, in above-mentioned inverter, described blood pressure lowering isolation module also includes:
It is arranged at the capacitance between a described IGBT inversion module and the first electromagnetic device transformator；
It is arranged at the capacitance between described 2nd IGBT inversion module and the second electromagnetic device transformator.
By above scheme, the inverter that this utility model embodiment provides, by described inversion
Two independences and identical the first electromagnetic device of specification and the second electromagnetic device are set in device, by controlling institute
State an IGBT inversion module and the 2nd IGBT inversion module respectively to described first electromagnetic device and second
The pumping signal of electromagnetic device output opposite in phase, due to the principle of stacking of ripple, can make described first
The frequency of the electromagnetic noise that electromagnetic device and the second electromagnetic device produce is identical with amplitude, and both mutually support
Disappearing, therefore without using sound-absorbing material, cost is relatively low compared to existing technologies.In addition,
One IGBT inversion module and the 2nd IGBT inversion module are to described first electromagnetic device and the second electromagnetic device
Send the pumping signal of opposite in phase, described first electromagnetic device and the leakage of the second electromagnetic device can be made
Magnetic magnetic field 180 ° of phase angles of difference, so that the frequency electromagnetic radiation of two electromagnetic device generations and switch lock
Rate electromagnetic radiation is cancelled out each other, and contributes to the further optimization of inverter.
Accompanying drawing explanation
In order to be illustrated more clearly that this utility model embodiment or technical scheme of the prior art, below will
The accompanying drawing used required in embodiment or description of the prior art is briefly described, it should be apparent that,
Accompanying drawing in describing below is only embodiments more of the present utility model, for ordinary skill people
From the point of view of Yuan, on the premise of not paying creative work, it is also possible to obtain the attached of other according to these accompanying drawings
Figure.
Fig. 1 is the structure chart of a kind of inverter disclosed in this utility model embodiment；
Fig. 2 is the structure chart of a kind of inverter disclosed in another embodiment of this utility model；
Fig. 3 be a kind of IGBT inversion module disclosed in the embodiment of the present application with the structure of described electromagnetic device and
Annexation schematic diagram；
Fig. 4 is the structure of another kind of IGBT inversion module disclosed in the embodiment of the present application and described electromagnetic device
And annexation schematic diagram；
Fig. 5 is the structure of the embodiment of the present application another IGBT inversion module disclosed and described electromagnetic device
And annexation schematic diagram.
Detailed description of the invention
Below in conjunction with the accompanying drawing in this utility model embodiment, to the technology in this utility model embodiment
Scheme is clearly and completely described, it is clear that described embodiment is only this utility model one
Divide embodiment rather than whole embodiments.Based on the embodiment in this utility model, this area is common
The every other embodiment that technical staff is obtained under not making creative work premise, broadly falls into this
The scope of utility model protection.
Be directed in prior art inverter use add in structure sound-absorbing deadener solve electromagnetic noise and
Electric and magnetic oscillation and cause the relatively costly problem of inverter, this application discloses a kind of new-type inverter.
Fig. 1 is the structure chart of inverter disclosed in the present application, and inverter disclosed in the embodiment of the present application includes:
A kind of inverter, including inversion module 200, described inverter also includes at least one blood pressure lowering isolation mode
Block 100, each described blood pressure lowering isolation module 100 includes:
Oneth IGBT inversion module 110, and be connected with the outfan of a described IGBT inversion module 110
First electromagnetic device 120；
2nd IGBT inversion module 130, and be connected with the outfan of described 2nd IGBT inversion module 130
Second electromagnetic device 140；
A described IGBT inversion module 110 is connected with the input of described 2nd IGBT inversion module 130
Relation is serial or parallel connection, described first electromagnetic device 120 and the outfan of described second electromagnetic device 140
Parallel connection, is connected between the most described first electromagnetic device 120 and the outfan of the second electromagnetic device 140；
A described IGBT inversion module 110 identical with the circuit of described 2nd IGBT inversion module 130 and
The opposite in phase of output voltage；Described first electromagnetic device 120 and the specification of described second electromagnetic device 140
Identical.
Wherein, so that the electromagnetism that described first electromagnetic device 120 and the second electromagnetic device 140 produce is made an uproar
Sound is cancelled out each other, and needs to ensure that the frequency of the electromagnetic noise of both generations and amplitude are identical, therefore, and institute
State the first electromagnetic device 120 and need identical (i.e. both structure, sizes with the specification of the second electromagnetic device 140
Identical).
During inverter in technical scheme disclosed in the above embodiments of the present application, by described inverter
Two independences and identical the first electromagnetic device 120 and the second electromagnetic device 140 of specification are inside set, by control
Make described first IGBT module 110 and the 2nd IGBT inversion module 130 respectively to described first electromagnetic device
120 and second electromagnetic device 140 export the pumping signal of opposite in phase, due to the principle of stacking of ripple,
Make that described first electromagnetic device 120 is identical with amplitude with the frequency that the second electromagnetic device 140 produces, direction
Contrary electromagnetic noise is cancelled out each other, and therefore without using sound-absorbing material, becomes compared to existing technologies
This is relatively low.In addition, an IGBT inversion module and the 2nd IGBT inversion module are to described first electromagnetism
Device and the second electromagnetic device send the pumping signal of opposite in phase, can make described first electromagnetic device
180 ° of phase angles are differed with the leakage field magnetic field of the second electromagnetic device, so that the work that two electromagnetic devices produce
Frequently electromagnetic radiation and switching frequency electromagnetic radiation are cancelled out each other, and contribute to the further optimization of inverter.
Wherein it is desired to explanation, the quantity of described blood pressure lowering isolation module can according to user's request voluntarily
Set, and, each described blood pressure lowering isolation module all uses mode disclosed in above-described embodiment to arrange.
Preferably, by reasonably arranging between described first electromagnetic device 120 and the second electromagnetic device 140
Position so that both produce electromagnetic noises cancel out each other, and, when distance between the two
For a described IGBT inversion module and the switching frequency institute of described 2nd IGBT inversion module breaker in middle pipe
When causing the integral multiple of electromagnetic noise wavelength, neutralization effect can reach optimum, and therefore, the application is above-mentioned
In technical scheme disclosed in embodiment, between described first electromagnetic device 120 and the second electromagnetic device 140
The integral multiple of the most described switching tube switching frequency electromagnetic noise wavelength of distance.Such as, switching tube work
When switching frequency is 15KHz, the wavelength of sound of the electromagnetic noise of its correspondence is 22.6mm, so this circuit
Described in distance between the first electromagnetic device 120 and the second electromagnetic device 140 may be designed as the whole of 22.6mm
Several times.
It is understood that described first electromagnetic device 120 and the second electromagnetic device 140 are except producing electromagnetism
Outside noise, also can produce vibrating noise.In order to eliminate described first electromagnetic device 120 and the second electromagnetic device
The vibrating noise that part 140 produces, described first electromagnetic device 120 disclosed in the above embodiments of the present application and the
Two electromagnetic devices 140 are arranged on same support, and preferably rigid support and its rigidity is preferable, now described
Vibration produced by first electromagnetic device 120 and the second electromagnetic device 140 all can act on the bracket.
Due to the opposite in phase by described first IGBT module 110 and the output of the 2nd IGBT inversion module 130
Pumping signal so that the direction of the vibration that described first electromagnetic device 120 and the second electromagnetic device 140 produce
On the contrary, therefore, when effect of vibration in opposite direction is on same support, both meetings are cancelled out each other.
Below the principle of noise reduction of inverter disclosed in the above embodiments of the present application is described in detail:
When described inverter works, its vibration produced and noise include: the electromagnetic vibration caused by power frequency
Dynamic, frequency electromagnetic radiation, power frequency noise；By the IGBT inversion module in inverter and the 2nd IGBT
Electric and magnetic oscillation that electromagnetic device that switching tube speed-sensitive switch in inversion module causes produces, electromagnetic noise,
Switching frequency electromagnetic radiation.
Power frequency (50Hz/60Hz) noise reduction and elimination electromagnetism power frequency vibration: by controlling a described IGBT
The opposite in phase of the voltage excitation signals of module 110 and the output of the 2nd IGBT inversion module 130, i.e. differs 180
° so that 180 ° of phase angles of phase of the noise of two electromagnetic device generations so that described first electromagnetism
Device 120 and the direction of vibration of the second electromagnetic device 140 and noise on the contrary, thus can make power frequency noise
Cancel out each other；Next, be arranged on described same by described first electromagnetic device 120 and the second electromagnetic device 140
On one support, due to making an uproar that the first electromagnetic device 120 described under this frequency and the second electromagnetic device 140 produce
The wavelength of sound is 6.8m/5.6m, and the distance of the first electromagnetic device 120 and the second electromagnetic device 140 is the least
In the wavelength of described noise, by described support, described first electromagnetic device 120 and the second electricity can be made
Magnetic device 140 is produced the power frequency vibration caused by described power frequency and is cancelled out each other.
High frequency noise reduction and elimination switch electric and magnetic oscillation: due to the switch lock of the switching tube in described IGBT module
Rate is much larger than power frequency, that therefore caused by the switching tube in described IGBT module, produced by electromagnetic device
Vibration and the vibration that causes much larger than power frequency of switch electromagnetic noise frequency and frequency noise, described electromagnetism is made an uproar
The frequency of sound is the highest, then the wavelength corresponding to this noise is the shortest, when the switching tube of described IGBT inversion module
Switching frequency when bringing up to certain value, the ripple corresponding to electromagnetic noise that therefore described electromagnetic device produces
Long also can shorten to certain value, by regulate between described first electromagnetic device and the second electromagnetic device away from
From so that distance between the two is the integral multiple of the wavelength of described electromagnetic noise, now consolidating due to ripple
Having attribute, the electromagnetic noise that both can be made to send is cancelled out each other, and due to described first electromagnetic device and
The pumping signal opposite in phase of the second electromagnetic device, therefore causes described first electromagnetic device and the second electromagnetism
The electric and magnetic oscillation that device causes because of described switch also can be cancelled out each other.
Demagnetization electromagenetic wave radiation: certainly, the inverter in the above embodiments of the present application shakes in noise reduction, elimination
While Dong, also can reach the purpose of demagnetization electromagnetic radiation: when inversion disclosed in the above embodiments of the present application
Device operationally, by controlling a described IGBT inversion module and the 2nd IGBT inversion module to described the
One electromagnetic device and the second electromagnetic device send the pumping signal of opposite in phase, can make described first electricity
Leakage field magnetic field 180 ° of phase angles of difference of magnetic device and the second electromagnetic device, so that two electromagnetic devices produce
Raw frequency electromagnetic radiation and switching frequency electromagnetic radiation are cancelled out each other.
Described first electromagnetic device 120 and the second electromagnetic device 140 disclosed in the above embodiments of the present application
Think transformator or reactor.
It is understood that when described first electromagnetic device 120 and described second electromagnetic device 140 are change
During depressor, the signal of described transformator output is AC signal, it is therefore desirable to carry out whole to this AC signal
Stream processes, and therefore sees Fig. 2, and described blood pressure lowering isolation module 100 can also include: the first rectification circuit 150
With the second rectification circuit 160, wherein, described first rectification circuit 150 and described first electromagnetic device 120 phase
Even, for the signal of telecommunication of described first electromagnetic device 120 output is carried out rectification, described second rectification circuit
160 are connected with described second electromagnetic device 140, for the signal of telecommunication to described second electromagnetic device 140 output
Carry out rectification.Wherein, described first rectification circuit 150 and the second rectification circuit 160 can be bridge rectifier
Circuit.
Wherein, see Fig. 3, Fig. 4 and Fig. 5, a described IGBT inversion disclosed in the above embodiments of the present application
Module 110 and described 2nd IGBT inversion module 130 can be H-bridge inverter circuit or semi-bridge inversion electricity
Road.
See Fig. 3, when a described IGBT inversion module 110 and described 2nd IGBT inversion module 130 are equal
During for H-bridge inverter circuit, described first electromagnetic device 120 and described second electromagnetic device 140 are transformation
Device.The structure of each described H-bridge inverter circuit includes:
First switching tube branch road in parallel and second switch pipe branch road, described first switching tube branch road and second
Two common ports of switching tube branch road are respectively as a described IGBT inversion module 110 and described second
The positive input terminal of IGBT inversion module 130 can be connected with electrical network with negative input end；
Described first switching tube branch road and second switch pipe branch road all include:
First switching tube K1；
The second switch pipe K2 that first end is connected with second end of described first switching tube K1；
With the first diode D1 of described first switching tube K1 reverse parallel connection, the sun of described first diode D1
Pole is connected with second end of described first switching tube K1；
With the second diode D2 of described second switch pipe K2 reverse parallel connection, the sun of described second diode D2
Pole is connected with second end of described second switch pipe K2；
The common port of the first switching tube K1 and second switch pipe K2 described in described first switching tube branch road is made
For a described IGBT inversion module 110 and the positive output end of described 2nd IGBT inversion module 130, described
Described in second switch pipe branch road, the common port of the first switching tube K1 and second switch pipe K2 is respectively as institute
State an IGBT inversion module 110 and the negative output terminal of described 2nd IGBT inversion module 130.Concrete,
The type of described first switching tube K1 and second switch pipe K2 can select according to user's request, such as voluntarily
It can be audion, IGBT and metal-oxide-semiconductor, sees Fig. 3, the described first switching tube K1 in Fig. 3 and
When two switching tube K2 are IGBT and PMOS, wherein said first switching tube K1 and second switch pipe K2
The first end refer to drain electrode and the colelctor electrode of IGBT of described PMOS, the second end refers to described
The source electrode of PMOS and the emitter stage of the source electrode of IGBT.
As the two ends of primary coil of transformator of described first electromagnetic device 120 respectively with described first
The positive output end of IGBT inversion module 110 is connected with negative output terminal one_to_one corresponding, as described first electromagnetic device
The secondary coil of the transformator of part 120 is connected with the input of described first rectification circuit 150；As described
The two ends of the primary coil of the transformator of the second electromagnetic device 140 respectively with described 2nd IGBT inversion module
The positive output end of 130 is connected with negative output terminal one_to_one corresponding, as the transformation of described second electromagnetic device 140
The secondary coil of device is connected with the input of described second rectification circuit 160.
When the transformator that the described IGBT inversion module of connection and the 2nd IGBT inversion module are corresponding,
User can connect voluntarily according to needs, for example, with reference to Fig. 3, and the primary coil of described transformator of the same name
Hold the IGBT inversion mould that positive output end is connected, different name end is corresponding of corresponding IGBT inversion module
The negative output terminal of block is connected, the input phase of the rectification circuit that the secondary coil of described transformator is corresponding
Even, when the rectification circuit of its correspondence is bridge rectifier, the secondary coil of described transformator of the same name
End is connected with the positive input terminal of this bridge rectifier, the different name end of described secondary coil and this bridge rectifier
The negative input end of circuit is connected.
See Fig. 4 and Fig. 5, when a described IGBT inversion module 110 and described 2nd IGBT inversion module
130 when being half-bridge inversion circuit, and described first electromagnetic device 120 and described second electromagnetic device 140 are permissible
For transformator or reactor.Each described half-bridge circuit includes:
The 3rd switching tube K3 and the 4th switching tube K4 of series connection；Second end of described 3rd switching tube K3 and
First end of four switching tube K4 is connected, and first end of described 3rd switching tube K3 and the 4th switching tube K4
The second end respectively as a described IGBT inversion module 110 and described 2nd IGBT inversion module 130
Positive input terminal and negative input end；
3rd switching tube K3 two ends reverse parallel connection the 3rd diode D3, the anode of described 3rd diode D3 with
Second end of described 3rd switching tube K3 is connected；
4th switching tube K4 two ends reverse parallel connection the 4th diode D4, the anode of described 4th diode D4 with
Second end of described 4th switching tube K4 is connected；
First end of described 4th switching tube K4 is respectively as a described IGBT inversion module 110 and described
The positive output end of the 2nd IGBT inversion module 130；Second end of described 4th switching tube K4 is respectively as institute
State an IGBT inversion module 110 and the negative output terminal of described 2nd IGBT inversion module 130；
As the two ends of primary coil of transformator of described first electromagnetic device 120 respectively with described first
The positive output end of IGBT inversion module 110 is connected with negative output terminal one_to_one corresponding, the secondary coil of this transformator
It is connected with the input of described first rectification circuit 150；At the beginning of transformator as described second electromagnetic device
The two ends of level coil are respectively with the positive output end of described 2nd IGBT inversion module 130 and negative output terminal one by one
Corresponding connected, the secondary coil of this transformator described is connected with the input of described second rectification circuit 160.
Wherein, the type of described 3rd switching tube K3 and the 4th switching tube K4 can according to user's request voluntarily
Choosing, such as, it can be audion, IGBT and metal-oxide-semiconductor, when seeing Figure 4 and 5, when the described 3rd
When switching tube K3 and the 4th switching tube K4 is IGBT or metal-oxide-semiconductor, the first end refers to described metal-oxide-semiconductor
Drain electrode and the colelctor electrode of IGBT, the second end refers to the source electrode of described metal-oxide-semiconductor and the emitter stage of IGBT, i.e.
Source electrode or the emitter stage of described 3rd switching tube K3 be connected with the anode of described 3rd diode D3, drain or
Colelctor electrode is connected with the negative electrode of described 3rd diode D3；The source electrode of described 4th switching tube K4 or emitter stage
It is connected with the anode of described 4th diode D4, drains or the negative electrode of colelctor electrode and described 4th diode D4
It is connected.
See Fig. 4, when a described IGBT inversion module 110 and described 2nd IGBT inversion module 130 are equal
During for half-bridge inversion circuit, described first electromagnetic device 120 and described second electromagnetic device 140 are transformation
During device, the positive output end phase of the IGBT inversion module that one end of the primary coil of described transformator is corresponding
Even, the negative output terminal of the corresponding IGBT inversion module of the other end be connected, the secondary wire of described transformator
The input enclosing corresponding rectification circuit is connected.Concrete, see Fig. 4, the primary of described transformator
The positive output end of the IGBT inversion module that the Same Name of Ends of coil is corresponding is connected, different name end is corresponding
The negative output terminal of IGBT inversion module is connected, the rectification circuit that the secondary coil of described transformator is corresponding
Input be connected, when described first rectification circuit 150 and the second rectification circuit 160 are bridge rectifier
Time, the positive input terminal phase of the bridge rectifier that the Same Name of Ends of the secondary coil of described transformator is corresponding
Even, the negative input end of the bridge rectifier that the different name end of described secondary coil is corresponding is connected.
See Fig. 5, when a described IGBT inversion module 110 and described 2nd IGBT inversion module 130 are equal
During for half-bridge inversion circuit, described first electromagnetic device 120 and described second electromagnetic device 140 are reactance
During device, as the first end and a described IGBT inversion module of the reactor of described first electromagnetic device 120
The positive output end of 110 is connected, the second end is connected with the input of described inversion module 200, as described the
The positive output end phase of the first end of the reactor of two electromagnetic devices 120 and described 2nd IGBT inversion module 130
Connect, the second end is connected with the input of described inversion module 200, and wherein, described inversion module 200 is permissible
Including positive input terminal and negative input end, now, as described first electromagnetic device 120 and the second electromagnetic device
Second end of the reactor of 140 is connected with the positive input terminal of described inversion module 200, described inversion module 200
Negative input end and IGBT inversion module 110 and a negative output terminal phase for the 2nd IGBT inversion module 130
Even.
Certainly, in order to isolate the described IGBT module direct current signal to corresponding transformator output, ginseng
See Fig. 3 and 4, above-mentioned blood pressure lowering isolation module can also include:
It is arranged at a described IGBT inversion module 110 and the transformation as described first electromagnetic device 120
Capacitance C0 between device；
It is arranged at described 2nd IGBT inversion module 130 and the transformator as described second electromagnetic device 140
Between capacitance C0；
Concrete, described capacitance C0 is arranged at the positive output end of IGBT inversion module with corresponding
Between the Same Name of Ends of the primary coil of transformator.
It is understood that in order to ensure described first IGBT module and the input of the 2nd IGBT inversion module
The stability of electric current, sees Fig. 3,4 and 5, in technical scheme disclosed in the above embodiments of the present application, described
Blood pressure lowering isolation module 100 can also include: the filter circuit in parallel with described IGBT inversion module, described filter
Wave circuit can be filter capacitor C1, it is preferable that filter capacitor C1 two ends can be with parallel filtering resistance R1.
Wherein, when described first electromagnetic device and the second electromagnetic device are reactor, described in order to ensure
The stability of the output signal of reactor, sees Fig. 5, in technical scheme disclosed in the above embodiments of the present application,
A unilateral diode D0 and filter capacitor C2 it is additionally provided with between described reactor and inversion module 200, described
Unilateral diode D0 is connected with the second end of described reactor with the series connection of described reactor and its anode, negative electrode
It is connected with described inversion module 200, one end of described filter capacitor C2 and the negative electrode of described unilateral diode D0
It is connected, other end ground connection.
In this specification, each embodiment uses the mode gone forward one by one to describe, and each embodiment stresses
Being the difference with other embodiments, between each embodiment, identical similar portion sees mutually.
Described above to the disclosed embodiments, makes professional and technical personnel in the field be capable of or uses
This utility model.Multiple amendment to these embodiments will be aobvious for those skilled in the art
And be clear to, generic principles defined herein can be without departing from spirit or scope of the present utility model
In the case of, realize in other embodiments.Therefore, this utility model is not intended to be limited to institute herein
These embodiments shown, and it is to fit to consistent with principles disclosed herein and features of novelty the widest
Scope.
Claims (10)
1. an inverter, including inversion module, it is characterised in that described inverter also includes at least one
Individual blood pressure lowering isolation module, the outfan of described blood pressure lowering isolation module is connected with described inversion module, described fall
Pressure isolation module includes:
Oneth IGBT inversion module, and the first electricity being connected with the outfan of a described IGBT inversion module
Magnetic device；
2nd IGBT inversion module, and the second electricity being connected with the outfan of described 2nd IGBT inversion module
Magnetic device；
A described IGBT inversion module and the input serial or parallel connection of described 2nd IGBT inversion module,
As described blood pressure lowering isolation mode after the outfan parallel connection of described first electromagnetic device and described second electromagnetic device
The outfan of block；
A described IGBT inversion module is identical with the circuit of described 2nd IGBT inversion module and output is electric
The opposite in phase of pressure；Described first electromagnetic device is identical with the specification of described second electromagnetic device.
Inverter the most according to claim 1, it is characterised in that a described IGBT inversion module
Switching tube, described first electromagnetic device and described second electromagnetism is all included with described 2nd IGBT inversion module
Distance between device is the integral multiple of described switching tube switching frequency electromagnetic noise wavelength.
Inverter the most according to claim 2, it is characterised in that described first electromagnetic device and institute
State the second electromagnetic device to be arranged on same support.
Inverter the most according to any one of claim 1 to 3, it is characterised in that described electromagnetic device
Part is reactor or transformator.
Inverter the most according to claim 4, it is characterised in that described first electromagnetic device and institute
Stating the second electromagnetic device when being transformator, described blood pressure lowering isolation module also includes:
The first rectification circuit being connected with described first electromagnetic device outfan, described first rectification circuit
Outfan is connected with described inversion module；
The second rectification circuit being connected with described second electromagnetic device outfan, described first rectification circuit
Outfan is connected with described inversion module.
Inverter the most according to claim 5, it is characterised in that described first rectification circuit and
Two rectification circuits are bridge rectifier.
7. according to the inverter described in claim 5 or 6, it is characterised in that a described IGBT inversion mould
Block and the 2nd IGBT inversion module are H-bridge inverter circuit；
Described H-bridge inverter circuit includes:
First switching tube branch road in parallel and second switch pipe branch road, described first switching tube branch road and second
Two common ports of switching tube branch road are respectively as a described IGBT inversion module and described 2nd IGBT
The positive input terminal of inversion module and negative input end；
Described first switching tube branch road and second switch pipe branch road all include:
First switching tube of series connection and second switch pipe；Second end of described first switching tube and second switch
First end of pipe is connected, and the second end of the first end of described first switching tube and second switch pipe is as institute
State the first switching tube and the common port of second switch pipe；
With the first diode of described first switching tube reverse parallel connection, the anode of the first diode and described the
Second end of one switching tube is connected；
With the second diode of described second switch pipe reverse parallel connection, the anode of described second diode and institute
The second end stating second switch pipe is connected；
The common port of the first switching tube and second switch pipe described in described first switching tube branch road respectively as
A described IGBT inversion module and the positive output end of described 2nd IGBT inversion module, described second switch
The common port of the first switching tube and second switch pipe described in pipe branch road is respectively as a described IGBT inversion
Module and the negative output terminal of described 2nd IGBT inversion module；
The two ends of the primary coil of described first electromagnetic device transformator respectively with a described IGBT inversion mould
Block positive output end is connected with negative output terminal, and secondary coil is connected with the input of described first rectification circuit；
The two ends of the primary coil of described second electromagnetic device transformator are respectively with described 2nd IGBT inversion module just
Outfan is connected with negative output terminal, and secondary coil is connected with the input of described second rectification circuit.
8. according to the inverter described in claim 5 or 6, it is characterised in that a described IGBT inversion mould
Block and the 2nd IGBT inversion module are half-bridge inversion circuit,
Described half-bridge inversion circuit includes: the 3rd switching tube of series connection and the 4th switching tube；Described 3rd opens
The first end closing the second end of pipe and the 4th switching tube is connected, and the first end of described 3rd switching tube and the
Second end of four switching tubes is respectively as a described IGBT inversion module and described 2nd IGBT inversion mould
The positive input terminal of block and negative input end；
3rd switching tube two ends reverse parallel connection the 3rd diode, the anode of described 3rd diode and described the
Second end of three switching tubes is connected；
4th switching tube two ends reverse parallel connection the 4th diode, the anode of described 4th diode and described the
Second end of four switching tubes is connected；
First end of described 4th switching tube is respectively as a described IGBT inversion module and described second
The positive output end of IGBT inversion module；Second end of described 4th switching tube is respectively as a described IGBT
Inversion module and the negative output terminal of described 2nd IGBT inversion module；
The two ends of the primary coil of described first electromagnetic device transformator respectively with a described IGBT inversion mould
The positive output end of block is connected with negative output terminal one_to_one corresponding, the secondary wire of described first electromagnetic device transformator
Circle is connected with the input of described first rectification circuit；The primary coil of described second electromagnetic device transformator
Two ends be connected with positive output end and the negative output terminal one_to_one corresponding of described 2nd IGBT inversion module respectively,
The secondary coil of described second electromagnetic device transformator is connected with the input of described second rectification circuit.
Inverter the most according to claim 4, it is characterised in that described first electromagnetic device and
Two electromagnetic devices are reactor, and a described IGBT inversion module and the 2nd IGBT inversion module are half
Bridge inverter circuit,
Described half-bridge inversion circuit includes:
Described half-bridge inversion circuit includes: the 3rd switching tube of series connection and the 4th switching tube；Described 3rd opens
The first end closing the second end of pipe and the 4th switching tube is connected, and the first end of described 3rd switching tube and the
Second end of four switching tubes is respectively as a described IGBT inversion module and described 2nd IGBT inversion mould
The positive input terminal of block and negative input end；
3rd switching tube two ends reverse parallel connection the 3rd diode, the anode of described 3rd diode and described the
Second end of three switching tubes is connected；
4th switching tube two ends reverse parallel connection the 4th diode, the anode of described 4th diode and described the
Second end of four switching tubes is connected；
First end of described 4th switching tube is respectively as a described IGBT inversion module and described second
The positive output end of IGBT inversion module；Second end of described 4th switching tube is respectively as a described IGBT
Inversion module and the negative output terminal of described 2nd IGBT inversion module；
First end of described first electromagnetic device reactor and the positive output end of a described IGBT inversion module
Being connected, the second end and described negative output terminal are connected with described inversion module；Described second electromagnetic device reactance
First end of device is connected with the positive output end of described 2nd IGBT inversion module, the second end and described negative output
End is connected with described inversion module.
Inverter the most according to claim 4, it is characterised in that described blood pressure lowering isolation module is also
Including:
It is arranged at the capacitance between a described IGBT inversion module and the first electromagnetic device transformator；
It is arranged at the capacitance between described 2nd IGBT inversion module and the second electromagnetic device transformator.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521140617.XU CN205490133U (en) | 2015-12-31 | 2015-12-31 | Inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201521140617.XU CN205490133U (en) | 2015-12-31 | 2015-12-31 | Inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205490133U true CN205490133U (en) | 2016-08-17 |
Family
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| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201521140617.XU Expired - Fee Related CN205490133U (en) | 2015-12-31 | 2015-12-31 | Inverter |
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| Country | Link |
|---|---|
| CN (1) | CN205490133U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105450011A (en) * | 2015-12-31 | 2016-03-30 | 深圳市英威腾交通技术有限公司 | Inverter |
| CN109605481A (en) * | 2018-12-10 | 2019-04-12 | 无锡百得包装材料有限公司 | High speed die-cutting machine solenoid controlled circuit |
-
2015
- 2015-12-31 CN CN201521140617.XU patent/CN205490133U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105450011A (en) * | 2015-12-31 | 2016-03-30 | 深圳市英威腾交通技术有限公司 | Inverter |
| CN105450011B (en) * | 2015-12-31 | 2019-02-15 | 深圳市英威腾交通技术有限公司 | A kind of inverter |
| CN109605481A (en) * | 2018-12-10 | 2019-04-12 | 无锡百得包装材料有限公司 | High speed die-cutting machine solenoid controlled circuit |
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Granted publication date: 20160817 Termination date: 20191231 |