CN207426994U - A kind of general inverter - Google Patents
A kind of general inverter Download PDFInfo
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- CN207426994U CN207426994U CN201721660633.0U CN201721660633U CN207426994U CN 207426994 U CN207426994 U CN 207426994U CN 201721660633 U CN201721660633 U CN 201721660633U CN 207426994 U CN207426994 U CN 207426994U
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Abstract
A kind of general inverter, including：Transformer circuit, rectifier circuit, filter circuit, full-bridge inverting output unit and inversion control unit；One end of the transformer circuit is electrically connected with one end of the rectifier circuit, the other end of the rectifier circuit is electrically connected with one end of the filter circuit, the other end of the filter circuit is electrically connected with one end of the full-bridge inverting output unit, and the another end of the filter circuit is electrically connected with one end of the inversion control unit；The inversion control unit is for controlling transformer circuit, and the utility model inversion efficiency is high, the unique design of inversion control unit, substantially increases the transformation efficiency of electric energy；Transformer winding utilization rate is higher so that equipment is made the best use of everything；It is versatile, the light switching in inversion source can be realized by multiplication of voltage relational design mechanism.
Description
Technical field
The utility model patent is related to inverter circuit design field, especially a kind of general inverter.
Background technology
In country's work and home life, usually using the commonplace such as common pen of the situation of power supply adaptor
Remember this power supply adaptor etc., the principle of power supply adaptor is exactly that the rectification circuit often mentioned in electricity designs, simplest not mistake
In classical bridge rectifier, AC conversion easily can be the DC power supply of people's needs by it, and is applied,
But in many technical fields, people are also required to direct current being converted to alternating current use, and corresponding, inverter circuit just generates
, and inverter circuit equipment, filtering, logic control and rectifier bridge are integrated with, therefore by its aggregate usually as finished product inversion
Device is sold, with reference to shown in Fig. 3；
Inverter is direct current energy, such as dry cell, battery, is transformed into alternating current；Popular says, inverter is one
Direct current (DC) is converted into the device of alternating current (AC) by kind；It is widely used in air-conditioning, home theater, electric wheel, electronic work
Tool, sewing machine, DVD, VCD, computer, TV, washing machine, smoke exhaust ventilator, refrigerator, video recorder, massager, fan, illumination etc.；More
Briefly, inverter is exactly a kind of electronics that low pressure (12 volts or 24 volts or 48 volts) direct current is changed into 220 volts of alternating currents
Equipment；We are in the epoch of one " movement ", mobile office, mobile communication, mobile leisure and amusement.In mobile state
In, people not only need by battery or storage battery supply low-voltage DC, while with greater need for we in surroundings can not or
220 volts of scarce alternating currents, inverter can meet our this demand；
But there are following design defect and deficiencies for existing inverter：
1. inverter efficiency has much room for improvement：Inverter itself will also consume a part of electric power at work, therefore, it
Input power is greater than its output power；
2. transformer winding utilization rate is not high in inverter, there are idle；
3. poor universality：In the prior art, every inverter has access DC voltage numerical value, such as 12V, 24V, 48V etc.,
It is required that selection battery tension must be consistent with inverter DC input voitage；For example, 12V inverters must select 12V electric power storages
Pond；It causes many constant during use；There is not an effective, simple, reliable circuit design and realize general-purpose interface
Switching；
Utility model content
The purpose of this utility model is to provide a kind of general inverter, solves inverter work efficiency in the prior art
Not high, poor universality deficiency by the Reliable Design of control relay circuit, considerably increases the utilization of transformer winding
Rate, simple in structure, easy to maintain, energy conservation and environmental protection.
A kind of general inverter, including：Transformer circuit, rectifier circuit, filter circuit, full-bridge inverting output unit and
Inversion control unit；One end of the transformer circuit is electrically connected with one end of the rectifier circuit, the rectifier circuit
The other end be electrically connected with one end of the filter circuit, the other end of the filter circuit and the full-bridge inverting output unit
One end electrical connection, the another end of the filter circuit is electrically connected with one end of the inversion control unit；
Further, single winding transformer inverter circuit, two-winding transformer inversion electricity can be used in the transformer circuit
Road or the mixed structure circuit design of the two；
Further, the rectifier circuit uses three groups of rectifier circuit structure designs；
As a kind of for example, in three groups of rectifier bridges, every group of rectifier bridge forms rectifier bridge using 4 diodes；
Further, the filter circuit uses two groups of filter capacitor structures；
Further, the full-bridge inverting output unit is used to export alternating current；
Further, the inversion control unit is used to control transformer circuit, including：Inverter controller, relay and
Driving switch, the inverter controller also can control the actuation operation of the relay for controlling inverter circuit logic control；
A kind of control method of general inverter, includes the following steps：
Step 1: transformer high-voltage uses double-winding structure；
When for inversion 12V DC electricity, in use, relay works, it is to be used in series to connect driving switch switching winding；
This structure design can substantially increase output voltage, and need not consume additional electrical energy；
When for inversion 24V direct currents, in use, relay does not work, driving switch resets, and winding parallel uses；This knot
Structure design can substantially increase output power；
Using the multiplication of voltage relation of 12V, 24V, transformer is made full use of, transformer winding can be used, does not cause equipment
Idle and waste of energy；
Step 2: transformer high-voltage uses simplex winding；
When for inversion 12V DC power supply in use, relay work, driving switch switching transformer series is allowed to use,
Increase output voltage；
When for inversion 24V DC power supplies, in use, relay does not work, driving switch resets transformers connected in parallel and uses,
Increase output power；
Using 12V, 24V multiplication of voltage relation, transformer is made full use of, does not cause waste of resource；
The beneficial effects of the utility model：
1. inversion efficiency is high, the unique design of inversion control unit, the transformation efficiency of electric energy is substantially increased；
2. transformer winding utilization rate is higher so that equipment is made the best use of everything；
3. it is versatile, the light switching in inversion source can be realized by multiplication of voltage relational design mechanism；
Description of the drawings
Fig. 1 is a kind of circuit design principle figure of the single phase transformer double-winding structure of general inverter of the utility model
(12V/24V)
Fig. 2 is a kind of circuit design principle figure of the dual transformer simplex winding structural circuit of general inverter of the utility model
(12V/24V)
Fig. 3 is a kind of prior art inversion design circuit diagram of general inverter of the utility model
Fig. 4 is a kind of circuit design principle figure of the single phase transformer double-winding structure of general inverter of the utility model
(48V/60V)
Fig. 5 is a kind of circuit design principle figure of the dual transformer double-winding structure circuit of general inverter of the utility model
(48V/60V)
Specific embodiment
The preferred embodiment of the utility model is described in detail below in conjunction with the accompanying drawings.
Referring to figs. 1 to shown in Fig. 2, a kind of general inverter, including：Transformer circuit 101, rectifier circuit 102, filtering
Circuit 103, full-bridge inverting output unit 104 and inversion control unit 105；One end of the transformer circuit 101 with it is described whole
One end electrical connection of bridge circuit 102 is flowed, the other end of the rectifier circuit 102 and one end of the filter circuit 103 are electrically connected
It connects, the other end of the filter circuit 103 is electrically connected with one end of the full-bridge inverting output unit 104, the filter circuit
103 another end is electrically connected with one end of the inversion control unit 105；
Further, single winding transformer inverter circuit, two-winding transformer inversion can be used in the transformer circuit 101
The mixed structure circuit design of circuit or the two；
Further, the rectifier circuit 102 uses three groups of rectifier circuit structure designs；
As a kind of for example, in three groups of rectifier bridges, every group of rectifier bridge forms rectifier bridge using 4 diodes；
Further, the filter circuit 103 uses two groups of filter capacitor structures；
Further, the full-bridge inverting output unit 104 is used to export alternating current；
Further, the inversion control unit 105 is used to control transformer circuit 101, including：Inverter controller, after
Electric appliance and driving switch, the inverter controller are used to control the actuation behaviour of inverter circuit logic control and the control relay
Make；
A kind of control method of general inverter, includes the following steps：
Step 1: high voltage side of transformer uses double-winding structure；
When for inversion 12V DC electricity, in use, relay works, it is to be used in series to connect driving switch switching winding；
This structure design can substantially increase output voltage, and need not consume additional electrical energy；
When for inversion 24V direct currents, in use, relay does not work, driving switch resets, and winding parallel uses；This knot
Structure design can substantially increase output power；
Using the multiplication of voltage relation of 12V, 24V, transformer is made full use of, transformer winding can be used, does not cause equipment
Idle and waste of energy；
Step 2: transformer high-voltage uses simplex winding；
When for inversion 12V DC power supply in use, relay work, driving switch switching transformer series is allowed to use,
Increase output voltage；
When for inversion 24V DC power supplies, in use, relay does not work, driving switch resets transformers connected in parallel and uses,
Increase output power；
Using 12V, 24V multiplication of voltage relation, transformer is made full use of, does not cause waste of resource；
In order to better illustrate the design principle of the utility model, preferred design circuit of now illustrating is as follows：
As a kind of preferred circuit design example, with reference to shown in Fig. 1：A kind of general inverter, including high frequency transformer T1,
The pin 1 of high frequency transformer T1 concatenates the drain D of field-effect tube Q1, the source of the source S connection field-effect tube Q2 of field-effect tube Q1
Pole S connects power cathode, and the drain D of field-effect tube Q2 connects the pin 6 of high frequency transformer T1, and the pin 2 of high frequency transformer T1 is with drawing
Foot 5 connects positive pole, and the pin 4 of high frequency transformer T1 is connected with pin 7 by K2, the pin 8 of high frequency transformer T1
The pin 1 of bridge rectifier diode D2 is connect, the pin 2 of rectifier diode D1 is electrically connected with the pin 1 of full-bridge inverter U1, rectification
The pin 4 of diode D1 is electrically connected with the pin 2 of full-bridge inverter U1, the 1 serial capacitance C1 of pin of full-bridge inverter U1 with it is complete
The pin 2 of bridge inverter U1 connects；The pin 4 of bridge rectifier diode D1 is electrically connected with the pin 4 of bridge rectifier diode D2,
The pin 2 of bridge rectifier diode D2 is electrically connected with the pin 1 of full-bridge inverter U1, the pin 4 of bridge rectifier diode D2 with
The pin 2 of full-bridge inverter U1 is electrically connected, and the pin 7 of high frequency transformer T1 is electrically connected with the pin 3 of bridge rectifier diode D2；
The pin 4 of high frequency transformer T1 is electrically connected with the pin 3 of relay K2 and bridge rectifier diode D1；The pin 1 of relay K2
It is electrically connected with the pin 1 of inverter controller U2, the pin 2 of relay K2 is electrically connected with the pin 2 of inverter controller U2, inversion control
The pin 3 of device U2 processed is electrically connected with the pin 2 of bridge rectifier diode D3, pin 4 and the inversion control of bridge rectifier diode D3
The pin 4 of device U2 processed is electrically connected, and the 3 serial capacitance C2 of pin of inverter controller U2 is electrically connected with the pin 4 of inverter controller U2；
The pin 1 of bridge rectifier diode D3 is electrically connected with the pin 9 of high frequency transformer T1, the pin 3 of bridge rectifier diode D3 with
The pin 10 of high frequency transformer T1 is electrically connected；Double winding is used by using single high frequency transformer T1, high frequency transformer T1, when
For 12V in use, relay K2 is controlled by inverter controller U2, relay K2 switchings allow the pin 4 and T1 of high frequency transformer T1
Pin 7 be electrically connected, as 24V in use, relay K2 switchings allow the pin 7 of pin 4 and T1 of high frequency transformer T1 to disconnect, around
The independent rectification of group is used in parallel, adds output power.
As a kind of preferred circuit design example, with reference to shown in Fig. 2：A kind of dual transformer formula inverter control circuit, including
The pin 1 of transformer T3, transformer T3 concatenate the drain D of field-effect tube Q1, the source S concatenation field-effect tube Q2 of field-effect tube Q1
Source S connect power cathode, the drain D of field-effect tube Q2 connects the pin 6 of transformer T3, pin 2 and 5 electricity of pin of transformer T3
Positive pole is connect, the pin 3 of transformer T3 connects the pin 1 of bridge rectifier diode D1, and bridge rectifier diode D1's draws
Foot 2 is electrically connected with the pin 1 of full-bridge inverter U1, and the pin 4 of transformer T3 is electrically connected with the pin 3 of rectifier diode D1.Bridge
The pin 4 of formula rectifier diode D1 is connected with the pin 2 of full-bridge inverter U1, the 1 serial capacitance C1 of pin of full-bridge inverter U1
It is connected with the pin 2 of full-bridge inverter U1；The pin 7 of transformer T3 is electrically connected with the pin 1 of rectifier diode D2, transformer T3
Pin 8 be electrically connected with the pin 3 of rectifier diode D2, the pin 2 of rectifier diode D2 connects with the pin 1 of inverter controller U2
It connects, the pin 4 of rectifier diode D2 is connected with the pin 2 of inverter controller U2, the 1 serial capacitance C2 of pin of inverter controller U2
It is connected with the pin 2 of inverter controller U2；The pin 3 of inverter controller U2 is electrically connected with the pin 1 of relay K2, inversion control
The pin 4 of device U2 is electrically connected with the pin 2 of relay K2, the pin 4 and relay K2 and rectifier diode D3's of transformer T3
Pin 1 connects；The pin 2 of rectifier diode D1 is connected with the pin 2 of rectifier diode D3, and the pin 2 of rectifier diode D3 is gone here and there
Capacitance C3 is met to be electrically connected with the pin 4 of rectifier diode D3, capacitance C3+end be electrically connected with the pin 1 of full-bridge inverter U1；It is whole
The pin 1 of stream diode D3 is electrically connected with the pin 3 of transformer T4, the pin 3 of rectifier diode D3 and the pin 4 of transformer T4
Electrical connection；By using the transformer T3 of high pressure simplex winding and transformer T4, as 12V in use, inverter controller U2 controls after
Electric appliance K2 causes the pin 4 of transformer T3 to be electrically connected with the pin 3 of transformer T4, and transformer T3 and transformer T4 is allowed, which to connect, to be made
With, as 24V in use, relay K2 does not work, transformer T3 and transformer T4 are used in parallel, using 12/24V multiplication of voltage relations,
Transformer is made full use of, does not cause the wasting of resources.
As a kind of preferred circuit design example, with reference to shown in Fig. 4：One transformer type inverter control circuit, including height
The pin 1 of frequency power transformer T1, high frequency transformer T1 concatenate the drain D of field-effect tube Q1, the source S concatenation field effect of field-effect tube Q1
Should the source S of pipe Q2 connect power cathode, the drain D of field-effect tube Q2 connects the pin 6 of high frequency transformer T1, high frequency transformer T1's
Pin 2 is electrically connected with pin 5 and connects positive pole, and the pin 4 of high frequency transformer T1 is electrically connected with pin 7, high frequency transformer T1's
Pin 8 connects the pin 3 of bridge rectifier diode D1, and the pin 2 of rectifier diode D1 is electrically connected with the pin 1 of full-bridge inverter U1
It connects, the pin 4 of rectifier diode D1 is electrically connected with the pin 2 of full-bridge inverter U1,1 serial capacitance of pin of full-bridge inverter U1
C1 is connected with the pin 2 of full-bridge inverter U1；The pin 1 of bridge rectifier diode D1 passes through relay K2 and high frequency transformer T1
Pin 3 or the pin 7 of high frequency transformer T1 connect；The pin 1 of relay K2 is electrically connected with the pin 1 of inverter controller U2,
The pin 2 of relay K2 is electrically connected with the pin 2 of inverter controller U2, the pin 3 and rectifier diode D2 of inverter controller U2
Pin 2 connect, the pin 4 of inverter controller U2 is connected with the pin 4 of rectifier diode D2, the pin 3 of inverter controller U2
Serial capacitance C2 is connected with the pin 4 of inverter controller U2, the pin 1 of rectifier diode D2 and the pin 9 of high frequency transformer T1
Electrical connection, the pin 3 of rectifier diode D2 are electrically connected with the pin 10 of high frequency transformer T1；Become by using doublewound high frequency
Depressor T1 as 48V in use, relay K2 switches to high-voltage winding, increases output voltage, as 60V in use, relay K2 not
Work, acquiescence access low pressure winding, realizes voltage switching, stabilizes the output voltage；
When for inversion 48V DC power supplies, in use, relay works, driving switch switches to high-voltage winding, increases defeated
Go out voltage；When for inversion 60V DC power supplies, in use, relay does not work, driving switch resets acquiescence access low pressure winding,
Virtual voltage switches, and stabilizes the output voltage；
As a kind of preferred circuit design example, with reference to shown in Fig. 5：A kind of dual transformer formula inverter control circuit, including
The pin 1 of high frequency transformer T1 and high frequency transformer T2, high frequency transformer T1 concatenate the drain D of field-effect tube Q1, field-effect tube
The source S of the source S concatenation field-effect tube Q2 of Q1 connects power cathode, and the drain D of field-effect tube Q2 connects drawing for high frequency transformer T1
Foot 6, the pin 2 of high frequency transformer T1 is electrically connected with pin 5 connects positive pole, and pin 4 and the pin 7 of high frequency transformer T1 are electrically connected
It connects, the pin 8 of high frequency transformer T1 connects the pin 1 of bridge rectifier diode D1, pin 2 and two pole of rectification of rectifier diode D1
The pin 2 of pipe D2 is electrically connected, and the pin 4 of rectifier diode D1 is electrically connected with the pin 2 of full-bridge inverter U1, rectifier diode D1
Pin 3 concatenate the K1-1 contacts of dpdt relay K1, the K1-1 contacts of dpdt relay K1 and high frequency transformer
The pin 3 or pin 7 of T1 is electrically connected；The pin 2 of rectifier diode D2 is electrically connected with the pin 1 of full-bridge inverter U1, rectification two
The pin 4 of pole pipe D2 is electrically connected with the pin 2 of full-bridge inverter U1, the 1 serial capacitance C1 of pin and full-bridge of full-bridge inverter U1
The pin 2 of inverter U1 connects；The pin 1 of rectifier diode D2 concatenates the K1-2 contacts of dpdt relay K1, and double-pole is double
The K1-2 contacts of relay K1 are thrown to be electrically connected with the pin 3 of high frequency transformer T2 or pin 4, the pin 3 of rectifier diode D2 with
The pin 8 of high frequency transformer T2 is electrically connected, and the pin 4 of high frequency transformer T2 is electrically connected with pin 7, the pin of high frequency transformer T2
The drain D of 1 concatenation field-effect tube Q3, the source S of the source S concatenation field-effect tube Q4 of field-effect tube Q3 connect power cathode, field effect
Should the drain D of pipe Q4 connect the pin 6 of high frequency transformer T2, the pin 2 of high frequency transformer T2 is electrically connected with pin 5 is connecing power supply just
Pole；The pin 1 of dpdt relay K1 is electrically connected with the pin 1 of inverter controller U2, the pin 2 of dpdt relay K1
It is electrically connected with the pin 2 of inverter controller U2, the pin 3 of inverter controller U2 is electrically connected with the pin 2 of rectifier diode D3, inverse
The pin 4 for becoming controller U2 is electrically connected with the pin 4 of rectifier diode D3, the 3 serial capacitance C2 of pin of inverter controller U2 and
The pin 4 of inverter controller U2 is electrically connected, and the pin 1 of rectifier diode D3 connects the pin 9 of high frequency transformer T2, two pole of rectification
The pin 3 of pipe D3 connects the pin 10 of high frequency transformer T2；The high frequency transformer T1 of the dual transformer formula inverter control circuit and
Using double winding, two transformers or even number transformer are can control using dpdt relay K1 by high frequency transformer T2,
Realize powerful switching, inverter controller U2 control dpdt relay K1 work, as 48V in use, double-pole double throw after
The K1-1 contacts of electric appliance K1 are electrically connected with the pin 3 of high frequency transformer T1, the K1-2 contacts of dpdt relay K1 and high frequency
The pin 3 of transformer T2 is electrically connected, and increases output voltage, and as 60V in use, dpdt relay K1 does not work, double-pole is double
The K1-1 contacts acquiescence for throwing relay K1 is electrically connected with the pin 7 of high frequency transformer T1, and the K1-2 of dpdt relay K1 is touched
Point acquiescence is electrically connected with the pin 4 of high frequency transformer T2, therefore can realize that voltage switching stabilizes the output voltage, and makes full use of transformation
Device and relay so that resource is fully used；Using dpdt relay, dual transformer or even number transformation are controlled
Device, actual high-power switching, as 48V in use, relay synchronism switching increases output voltage to high-voltage winding；When 60V is used
When, relay does not work, and gives tacit consent to synchronous access low pressure winding, and virtual voltage switching stabilizes the output voltage, makes full use of transformer
And relay, make full use of resource；
The utility model inversion efficiency is high, the unique design of inversion control unit, substantially increases the transformation efficiency of electric energy；
Transformer winding utilization rate is higher so that equipment is made the best use of everything；It is versatile, can inversion be realized by multiplication of voltage relational design mechanism
The light switching in source；
Above-described is only the preferred embodiment of the utility model, it should be understood that the explanation of above example is only
It is the method and its core concept for being used to help understand the utility model, is not used to limit the scope of protection of the utility model,
It is new to should be included in this practicality for all any modifications made within the thought and principle of the utility model, equivalent substitution etc.
Within the protection domain of type.
Claims (6)
1. a kind of general inverter, which is characterized in that including：Transformer circuit, rectifier circuit, filter circuit, full-bridge inverting
Output unit and inversion control unit；One end of the transformer circuit is electrically connected with one end of the rectifier circuit, described
The other end of rectifier circuit is electrically connected with one end of the filter circuit, and the other end of the filter circuit and the full-bridge are inverse
Become one end electrical connection of output unit, the another end of the filter circuit is electrically connected with one end of the inversion control unit；Institute
Inversion control unit is stated for controlling transformer circuit, including：Inverter controller, relay and driving switch, the inversion control
Device processed also can control the actuation operation of the relay for controlling inverter circuit logic control.
2. a kind of general inverter according to claim 1, which is characterized in that the transformer circuit is simplex winding transformation
The mixed structure circuit design of device inverter circuit, two-winding transformer inverter circuit or the two.
3. a kind of general inverter according to claim 2, which is characterized in that the rectifier circuit uses three groups of rectifications
Bridge circuit structure design.
4. a kind of general inverter according to claim 3, which is characterized in that in three groups of rectifier bridges, every group of rectification
Bridge forms rectifier bridge using 4 diodes.
5. a kind of general inverter according to claim 4, which is characterized in that the filter circuit uses two groups of filtered electricals
Hold structure.
6. a kind of general inverter according to claim 5, which is characterized in that the full-bridge inverting output unit is for defeated
Go out alternating current.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721660633.0U CN207426994U (en) | 2017-12-04 | 2017-12-04 | A kind of general inverter |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201721660633.0U CN207426994U (en) | 2017-12-04 | 2017-12-04 | A kind of general inverter |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207426994U true CN207426994U (en) | 2018-05-29 |
Family
ID=62396717
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109787458A (en) * | 2018-11-26 | 2019-05-21 | 肖军 | A kind of general inverter and its control method |
| CN109873571A (en) * | 2017-12-04 | 2019-06-11 | 邹晓灵 | A kind of general inverter and its control method |
-
2017
- 2017-12-04 CN CN201721660633.0U patent/CN207426994U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN109873571A (en) * | 2017-12-04 | 2019-06-11 | 邹晓灵 | A kind of general inverter and its control method |
| CN109787458A (en) * | 2018-11-26 | 2019-05-21 | 肖军 | A kind of general inverter and its control method |
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