CN205911952U - Collection flow box pressure reduction means - Google Patents
Collection flow box pressure reduction means Download PDFInfo
- Publication number
- CN205911952U CN205911952U CN201620855944.1U CN201620855944U CN205911952U CN 205911952 U CN205911952 U CN 205911952U CN 201620855944 U CN201620855944 U CN 201620855944U CN 205911952 U CN205911952 U CN 205911952U
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- Prior art keywords
- header box
- dropping equipment
- circuit
- box dropping
- resistance
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Abstract
The utility model discloses a collection flow box pressure reduction means, include: filter circuit for power supply voltage is received to the clutter that filters in the circuit, two switch tubes of establishing ties and setting up, it has a RCD snubber circuit all to establish ties on every switch tube, and be parallelly connected with filter circuit after establishing ties with RCD snubber circuit on the switch tube, a transformer, the stream input of transformer end with two switch tubes are connected respectively, two rectifiers are connected respectively to two outputs of transformer, and output circuit, output circuit with the rectifier is connected. The utility model discloses a mode of the double -barrelled series connection of switch tube realizes the partial pressure to the circuit, and then has reduced the withstand voltage requirement to the switch tube, has reached reduce cost's effect.
Description
Technical field
This utility model is related to header box field, particularly to a kind of header box dropping equipment.
Background technology
In recent years, photovoltaic generation industry develops rapidly all over the world, and China also increases support dynamics to relevant industries, makes
Obtain the large batch of development and application of various products of the sector, corresponding technical field also tends to all the more ripe, for solar energy
The remote monitoring in power plant, the header box with control function has been increasingly becoming main flow.Header box typically places solar electrical energy generation
The scene stood, possesses the water resistance of ip65 grade.
Header box power supply has voltage height, the little feature of power, and during work, supply voltage is up to 1500v, real work work(
Rate only has 2w, needs it is carried out blood pressure lowering process, more than current header box dropping equipment by the way of the work of Single switch pipe, therefore
The necessary height of pressure performance of requirement switching tube, but pressure higher switching tube, its Costco Wholesale is higher, leads to the one-tenth of header box
This is high.
Utility model content
This utility model provides a kind of header box dropping equipment, to solve above-mentioned technical problem present in prior art.
For solving above-mentioned technical problem, this utility model provides a kind of header box dropping equipment, comprising: filter circuit, uses
Clutter in filtering circuit；Two switching tubes being arranged in series, described switching tube is all in series with a rcd absorbing circuit, switch
In parallel with filter circuit after the series connection of Guan Shangyu rcd absorbing circuit；Transformator, two inputs of described transformator and described two switches
Pipe connects respectively, and two outfans of described transformator connect two commutators respectively；And output loop, described output loop and institute
State commutator to connect.
Preferably, described filter circuit includes four electrochemical capacitors being sequentially connected in series, all in parallel on each electrochemical capacitor
There is a resistance.
Preferably, the resistance of four resistance in parallel respectively with four electrochemical capacitors is identical.
Preferably, described commutator adopts diode.
Preferably, described header box dropping equipment also includes pwm module and feedback module, one end of described feedback module
It is connected with described output loop, the other end connects to one end of described pwm module, and the other end of described pwm module connects wherein
One switching tube.
Preferably, described header box dropping equipment also includes signal control module, described signal control module and power supply
Voltage connects.
Preferably, described output loop includes exporting major loop and output subloop.
Preferably, described rcd absorbing circuit includes electric capacity, resistance and diode, after described electric capacity and resistor coupled in parallel with
Described Diode series.
Compared with prior art, this utility model has the advantage that
1st, by the way of switching tube double-tube series, realize the partial pressure to circuit, and then reduce the pressure of switch tube
Require, reached the effect of reduces cost；
2nd, adopt filter circuit, by the way of four electrochemical capacitors are connected, each electric capacity undertakes power supply electricity to filter circuit
The 25% of pressure, to meet the voltage request of electric capacity in filter circuit with this；
3rd, to absorb the residual circuit of transformator using rcd absorbing circuit, simultaneously the voltage at controlling switch pipe two ends so as to
In the stable voltage range keeping, realize the protection of switch tube；
4th, by the way of feedback module and pwm module coordinate, adjust the conducting turn-off time of switching tube, thus adjusting defeated
Go out voltage so that output reaches voltage stabilizing；
5th, input voltage is gathered by signal control module (signal control), according to the change of input voltage, defeated
Go out corresponding signal value.
Brief description
Fig. 1 is the structural representation of header box dropping equipment of the present utility model.
Specific embodiment
Understandable for enabling above-mentioned purpose of the present utility model, feature and advantage to become apparent from, below in conjunction with the accompanying drawings to this
The specific embodiment of utility model is described in detail.It should be noted that, this utility model accompanying drawing is all in the form of simplifying
And all using non-accurately ratio, only in order to purpose that is convenient, lucidly aiding in illustrating this utility model embodiment.
As shown in figure 1, this utility model provides a kind of header box dropping equipment, comprising: filter circuit, first switch pipe
Q1, second switch pipe q2, a rcd absorbing circuit, the 2nd rcd absorbing circuit, transformator t1, commutator and output loop.
Wherein, described filter circuit is used for the clutter in filtering circuit, directly corresponds to two input vin+ and vin-,
Specifically, this filter circuit includes: first, second, third, fourth electrochemical capacitor cd1, cd2, cd3, cd4 being sequentially connected in series, with
Described first electrochemical capacitor cd1 first resistor r1 in parallel, second resistance r2 in parallel with described second electrochemical capacitor cd2, with
Described 3rd electrochemical capacitor cd3 3rd resistor r3 in parallel, the fourth resistance r4 in parallel with described 4th electrochemical capacitor cd4.String
Connection four electrochemical capacitors play increase pressure, the purpose of the requirement of input voltage is met with this, further, four resistance
Resistance identical, i.e. r1=r2=r3=r4, play partial pressure effect so that first, second, third, fourth electrochemical capacitor cd1,
The voltage at cd2, cd3, cd4 two ends is equal.
With continued reference to Fig. 1, described first switch pipe q1 is in parallel with described filter circuit after connecting with second switch pipe q2, enters
One step, described first switch pipe q1 is connected with a rcd absorbing circuit, and described second switch pipe q2 is inhaled with described 2nd rcd
Receive circuit connected in series.In other words, a described rcd absorbing circuit, first switch pipe q1, the 2nd rcd circuit and second switch pipe
Q2 is sequentially connected in series, and described second switch pipe q2 is connected to vin- end by the 5th resistance r5.
A described rcd absorbing circuit includes: the first electric capacity c1, the 6th resistance r6 and the second diode d2, wherein, first
Electric capacity c1 is connected with the negative pole of the second diode d2 with after the 6th resistance r6 parallel connection, and the positive terminal of described second diode d2 connects
To transformator t1 and first switch pipe q1.Described 2nd rcd absorbing circuit includes: the second electric capacity c2, the 7th resistance r7 and the 4th
Diode d4, wherein, connects to the negative pole of described 4th diode d4, institute after described second electric capacity c2 and the 7th resistance r7 parallel connection
The positive pole stating the 4th diode d4 connects to described transformator t1 and second switch pipe q2.
A described rcd absorbing circuit is used for protecting described first switch pipe q1, and described 2nd rcd absorbing circuit is used for protecting
Protect described second switch pipe q2, so that the voltage of two switching tubes is in stationary value.Specifically, first, second switching tube q1, q2 closes
Disconnected, the energy being accumulated in transformator t1 the parasitic capacitance of first switch pipe q1, second switch pipe q2 is charged so that first,
Second switch pipe q1, q2 voltage rises, when voltage rises to the voltage of first, second electric capacity c1, c2 respectively, the second, the 4th
Diode d2, d4 turn on, and in transformator t1, the energy of accumulation charges also to Absorption Capacitance c1, c2, now first switch pipe q1 electricity
, by the second diode d2 clamper in stationary value, second switch pipe q2 voltage is by the 4th diode d4 clamper in stationary value for pressure.Firstth,
During second switch pipe q1, q2 conducting, the first electric capacity c1 passes through the 6th resistance r6 electric discharge, and the second electric capacity c2 passes through the 7th resistance r7
Electric discharge is so that the voltage of the first electric capacity c1 and the second electric capacity c2 is in stationary value, and then makes first, second switching tube q1, q2
Voltage stabilization.
Two inputs of described transformator t1 are connected respectively with described first, second switching tube q1, q2, described transformator t1
Two outfans be respectively connecting to the first diode d1 and the 3rd diode d3, by transformator t1, primary energy is delivered to time
Level, by the first, the 3rd diode d1, d3 rectification, filtering.
Described output loop is included the output subloop 2 being connected with the first diode d1 and is connected with described 3rd diode d3
The output major loop 1 connecing.It should be noted that above-mentioned two-way output circuit all exports 5v constant voltage dc source, a road supply master
Circuit, a road supply communication uses, and double circuit output can reduce the cost of subsequent conditioning circuit.
With continued reference to Fig. 1, described header box dropping equipment also includes pwm (pulse width modulation) module 20 and feedback module
10, one end of described feedback module 10 is connected with described output major loop 1, and the other end connects to one end of described pwm module 20,
Described pwm module 20 connects to described first, second switching tube q1, q2.Specifically, described feedback module 10 is used for described defeated
Go out major loop 1 to be sampled, and the signal transmission that obtains of sampling is given described pwm module 20, described pwm module 20 is according to feedback
Signal, the conducting turn-off time of de-regulation first, second switching tube q1, q2 changes dutycycle, and then adjusts output voltage, makes
Must export and reach voltage stabilizing.
Preferably, described header box dropping equipment also includes signal control module 30, described signal control module and confession
Piezoelectric voltage connects, and for gathering input voltage, according to the change of input voltage, exports corresponding signal value.
Obviously, those skilled in the art can carry out various changes to utility model and modification is new without deviating from this practicality
The spirit and scope of type.So, if of the present utility model these modification and modification belong to this utility model claim and its
Within the scope of equivalent technologies, then this utility model is also intended to including these changes and modification.
Claims (8)
1. a kind of header box dropping equipment is it is characterised in that include:
Filter circuit, for the clutter in filtering circuit；
Two switching tubes being arranged in series, described switching tube is parallel to filter circuit two ends with rcd absorbing circuit after connecting；
Transformator, two inputs of described transformator are connected respectively with described two switching tubes, and two outfans of described transformator divide
Do not connect two commutators；
And
Output loop, described output loop is connected with described commutator.
2. header box dropping equipment as claimed in claim 1 is it is characterised in that described filter circuit includes four is sequentially connected in series
Electrochemical capacitor, each electrochemical capacitor is all parallel with a resistance.
3. header box dropping equipment as claimed in claim 2 is it is characterised in that distinguish in parallel four with four electrochemical capacitors
The resistance of resistance is identical.
4. header box dropping equipment as claimed in claim 1 is it is characterised in that described commutator adopts diode.
5. header box dropping equipment as claimed in claim 1 is it is characterised in that described header box dropping equipment also includes pwm
Module and feedback module, one end of described feedback module is connected with described output loop, and the other end connects to described pwm module
One end, the other end of described pwm module connects wherein one switching tube.
6. header box dropping equipment as claimed in claim 1 is it is characterised in that described header box dropping equipment also includes signal
Control module, described signal control module is connected with supply voltage.
7. header box dropping equipment as claimed in claim 1 it is characterised in that described output loop include export major loop and
Output subloop.
8. header box dropping equipment as claimed in claim 1 is it is characterised in that described rcd absorbing circuit includes electric capacity, resistance
And diode, with described Diode series after described electric capacity and resistor coupled in parallel.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620855944.1U CN205911952U (en) | 2016-08-09 | 2016-08-09 | Collection flow box pressure reduction means |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201620855944.1U CN205911952U (en) | 2016-08-09 | 2016-08-09 | Collection flow box pressure reduction means |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205911952U true CN205911952U (en) | 2017-01-25 |
Family
ID=57800492
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201620855944.1U Active CN205911952U (en) | 2016-08-09 | 2016-08-09 | Collection flow box pressure reduction means |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN205911952U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107294390A (en) * | 2017-07-27 | 2017-10-24 | 郑州瑞能电源技术有限公司 | Two-in-series circuit of reversed excitation |
-
2016
- 2016-08-09 CN CN201620855944.1U patent/CN205911952U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107294390A (en) * | 2017-07-27 | 2017-10-24 | 郑州瑞能电源技术有限公司 | Two-in-series circuit of reversed excitation |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |