CN207720038U - A kind of rectification circuit and power cabinet of power cabinet - Google Patents
A kind of rectification circuit and power cabinet of power cabinet Download PDFInfo
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- CN207720038U CN207720038U CN201820074320.5U CN201820074320U CN207720038U CN 207720038 U CN207720038 U CN 207720038U CN 201820074320 U CN201820074320 U CN 201820074320U CN 207720038 U CN207720038 U CN 207720038U
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- controllable silicon
- silicon scr
- power
- bridge rectifier
- circuit
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Abstract
The utility model is related to alternating current-direct current transformation technology field more particularly to the rectification circuits and power cabinet of a kind of power cabinet, including bridge rectifier, Hall voltage sensor and filter circuit；The input terminal of bridge rectifier connects AC power, for converting the alternating voltage of AC power to DC voltage；Hall voltage sensor is connect with bridge rectifier, the output stability for controlling DC voltage；The input terminal of filter circuit is connect with Hall voltage sensor, for being filtered to the electric current that Hall voltage sensor exports to export filtered electric current.A kind of rectification circuit of the power cabinet of the utility model, pass through bridge rectifier, Hall voltage sensor, the Combination Design of filter circuit, former three-phase alternating current is set to transform into direct current reliable, that ripple coefficient is small and smooth, it can apply in High Frequency Solid State induction heating equipment, high quality direct current is provided for follow-up DC inversion, ensures that the tubing weld seam of welding more they tends to smoothly.
Description
Technical field
The utility model is related to the rectification circuit of HF induction heating apparatus technical field more particularly to a kind of power cabinet and
Power cabinet.
Background technology
It is much set using electron tube high-frequency induction heating currently, China's design and the HF induction heating apparatus of manufacture still have
Standby, that there is only energy losses is big for this equipment, working efficiency is low, operating voltage is high, load stability is poor and takes up a large area
Etc. drawbacks, there is also needed before using preheating, tube life is short and equipment maintenance cost is high the defects of.
With the raising of the development of large power semiconductor device and microelectric technique, control technology, many countries are developing
It is made great progress in terms of High Frequency Solid State power supply.Currently as high frequency electric source device for power switching mainly by power MOSFET
And SIT, since there are high on-state loss by SIT, and manufacturing process is complicated, of high cost, expensive, working frequency is limited in
The defects of 200KHZ or less, so mostly based on MOSFET.Some domestic research institutions and manufacturing firm, it is solid studying and manufacturing
It is still to be continued to use traditional in original electron tube HF induction heating apparatus technical foundation on state HF induction heating apparatus
Design Thinking mode makes it much be limited in technical aspects such as high frequency, high capacity high efficiency and equipment dependabilities, deposits
In considerable difficulty.
Utility model content
For problems of the prior art, the utility model provides a kind of rectification circuit and power cabinet of power cabinet.
The utility model provides a kind of rectification circuit of the power cabinet of embodiment, and rectification circuit includes bridge rectifier, suddenly
That voltage sensor and filter circuit；
The input terminal of bridge rectifier connects AC power, for converting the alternating voltage of AC power to direct current
Pressure；
Hall voltage sensor is connect with bridge rectifier, the output stability for controlling DC voltage；
The input terminal of filter circuit is connect with the Hall voltage sensor, for the electricity to Hall voltage sensor both ends
Stream is filtered to export filtered electric current.
Further, rectification circuit further includes resonance circuit, the output end connection of resonance circuit and filter circuit.
Further, bridge rectifier include the first controllable silicon SCR 1, the second controllable silicon SCR 2, third controllable silicon SCR 3,
4th controllable silicon SCR 4, the 5th controllable silicon SCR 5 and the 6th controllable silicon SCR 6, wherein：
The anode of first controllable silicon SCR 1 is connected with the first of AC power, third controllable silicon SCR 3 it is positive with exchange
The second of power supply is connected, and the anode of the 5th controllable silicon SCR 5 is connected with the third of AC power, the second controllable silicon SCR 2
Cathode is connected with the third of AC power；The cathode of 4th controllable silicon SCR 4 is connected with the first of AC power；6th can
The cathode of control silicon SCR6 is connected with the second of AC power；
The cathode three of the cathode of first controllable silicon SCR 1, the cathode of third controllable silicon SCR 3 and the 5th controllable silicon SCR 5 connects
It connects and as the first output end of bridge rectifier；The anode of second controllable silicon SCR 2, the anode of the 4th controllable silicon SCR 4 and
The positive three of six controllable silicon SCRs 6 connects and as the second output terminal of bridge rectifier.
Further, filter circuit includes common mode inductance L, and two input terminals of common mode inductance L connect one to one respectively
The first output end and second output terminal of bridge rectifier, two output ends of common mode inductance L connect one to one access respectively
The first input end of resonance circuit and the second input terminal.
Further, resonance circuit includes the first resonance circuit and the second resonance circuit parallel with one another, the first resonance electricity
Road includes inductance L1 and capacitance C1, and the second resonance circuit includes inductance L2 and capacitance C2, and inductance L1 connects with capacitance C1, inductance
L2 connects with capacitance C2.
The utility model also provides a kind of power cabinet, and power cabinet includes the whole of cabinet and above-described embodiment in cabinet
Current circuit.
The rectification circuit and power cabinet of a kind of power cabinet of the utility model are sensed by bridge rectifier, Hall voltage
Three-phase alternating current, is transformed into that reliable, ripple coefficient is small and smooth by the Combination Design of device, filter circuit and resonance circuit
Direct current, can apply in High Frequency Solid State induction heating equipment, provide high quality direct current for follow-up DC inversion, ensure weldering
The tubing weld seam connect more they tends to straight line.
Description of the drawings
Illustrate the utility model embodiment or technical solution in the prior art in order to clearer, it below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it is clear that, the accompanying drawings in the following description is only
It is some embodiments of the utility model, for those of ordinary skill in the art, in the premise not made the creative labor
Under, it can also be obtained according to these attached drawings other attached drawings.
Fig. 1 is a kind of module composition figure of the rectification circuit of power cabinet of the utility model；
Fig. 2 is a kind of circuit design drawing of the rectification circuit of power cabinet of the utility model.
Specific implementation mode
Below in conjunction with the attached drawing in the utility model, to the technical scheme in the embodiment of the utility model carry out it is clear,
Complete description, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole implementation
Example.Based on the embodiments of the present invention, those skilled in the art is without making creative work
The all other embodiment obtained, belongs to the scope of protection of the utility model.
A kind of rectification circuit of power cabinet provided by the utility model, the rectification circuit are set as High Frequency Solid State sensing heating
Standby DC power supply provides high quality direct current reliable, that ripple coefficient is small and smooth for other electrical equipments.
As shown in Figure 1, the rectification circuit of the utility model includes bridge rectifier, Hall voltage sensor and filtered electrical
Road；
The input terminal of bridge rectifier connects AC power, for converting the alternating voltage of AC power to direct current
Pressure；
Hall voltage sensor is connect with bridge rectifier, the output stability for controlling DC voltage；
The input terminal of filter circuit is connect with Hall voltage sensor, for the electric current at Hall voltage sensor both ends into
To export filtered electric current, filter circuit sets output to other direct current electricity consumptions after the direct current filtering after conversion for row filtering
It is standby.
Specifically, rectification circuit further includes resonance circuit, the output end connection of resonance circuit and filter circuit.Resonance circuit
It is divided into series resonance and parallel resonance, while also according to capacitance in resonance circuit, resistance, the access of inductance and selected device
Electric parameter can reach different technique effects, and the utility model selects the mode of capacitor and inductor parallel resonance to current waveform
It is debugged, but this programme is not specifically limited the electric parameter of selected device, those skilled in the art can be by specific
Purpose of design select suitable parameters electronic device.
Specifically as shown in Fig. 2, the bridge rectifier of the utility model includes that the first controllable silicon SCR 1, second is silicon-controlled
SCR2, third controllable silicon SCR 3, the 4th controllable silicon SCR 4, the 5th controllable silicon SCR 5 and the 6th controllable silicon SCR 6, wherein：First can
The anode of control silicon SCR1 is connected with the first of AC power, and the anode of third controllable silicon SCR 3 is connected with the second of AC power
It connects, the anode of the 5th controllable silicon SCR 5 is connected with the third of AC power, the cathode and AC power of the second controllable silicon SCR 2
Third be connected；The cathode of 4th controllable silicon SCR 4 is connected with the first of AC power；The cathode of 6th controllable silicon SCR 6
It is connected with the second of AC power；The cathode of first controllable silicon SCR 1, the cathode of third controllable silicon SCR 3 and the 5th are silicon-controlled
The cathode three of SCR5 connects and as the first output end of bridge rectifier；The anode of second controllable silicon SCR 2, the 4th are controllably
The anode of silicon SCR4 is connected with the positive three of the 6th controllable silicon SCR 6 and as the second output terminal of bridge rectifier.It is silicon-controlled
It is the abbreviation of silicon controlled rectifier, is that there are three the four-layer structure large power semiconductor devices of PN knots for a kind of tool, it is also referred to as brilliant
Brake tube, it is silicon-controlled to be used as common semiconductor devices, it is widely used in various electronic equipments and electronic product, is generally used to controllable
Rectification, inversion, frequency conversion, pressure regulation, noncontacting switch etc..The silicon-controlled type and type that the utility model selects the technical program
It number is not especially limited, those skilled in the art can voluntarily select and access in circuit using electrical knowledge.
Specifically, three-phase alternating voltage includes U phases, V phases and W phases；The anode of first controllable silicon SCR 1 is connected with U；
The anode of third controllable silicon SCR 3 is connected with V；The anode of 5th controllable silicon SCR 5 is connected with W；Second controllable silicon SCR 2
Cathode is connected with W；The cathode of 4th controllable silicon SCR 4 is connected with U；The cathode of 6th controllable silicon SCR 6 is connected with V；The
The cathode of one controllable silicon SCR 1, the cathode of third controllable silicon SCR 3, the 5th controllable silicon SCR 5 cathode connection and it is whole as bridge-type
Flow the cathode output end of device；The anode of second controllable silicon SCR 2, the anode of the 4th controllable silicon SCR 4, the 6th controllable silicon SCR 6
Anode connects and as the cathode output end of bridge rectifier.Preferably, the utility model further includes control panel, control panel and bridge
The first controllable silicon SCR 1, the second controllable silicon SCR 2, third controllable silicon SCR 3, the 4th controllable silicon SCR the 4, the 5th in formula rectifier
Controllable silicon SCR 5 and the connection of the 6th controllable silicon SCR 6, can to control the first controllable silicon SCR 1, the second controllable silicon SCR 2, third
The firing point of control silicon SCR3, the 4th controllable silicon SCR 4, the 5th controllable silicon SCR 5 and the 6th controllable silicon SCR 6, to realize bridge rectifier
Device output voltage is adjustable in a certain range.
In specific implementation, as shown in Fig. 2, the filter circuit of the utility model includes common mode inductance L, common mode inductance L's
Two input terminals connect one to one the first output end and second output terminal of bridge rectifier respectively, two of common mode inductance L
Output end connects one to one respectively accesses the first input end and the second input terminal of resonance circuit.The access energy of common mode inductance L
Electromagnetic interference signal is enough filtered out, keeps the voltage waveform of output more smooth.
In specific implementation, as shown in Fig. 2, the resonance circuit of the utility model includes the first resonance circuit parallel with one another
With the second resonance circuit, the first resonance circuit includes inductance L1 and capacitance C1, and the second resonance circuit includes inductance L2 and capacitance C2,
Inductance L1 connects with capacitance C1, and inductance L2 connects with capacitance C2.That is, one end of inductance L1 and one end of inductance L2 connect
It connects, as the positive V+ of out-put supply, the other end of inductance L1 is connect with one end of capacitance C1, the other end and the electricity of inductance L2
Hold one end connection of C2, the other end of the other end and capacitance C2 of capacitance C1, the cathode V- as out-put supply.In addition, this reality
It is not construed as limiting with the novel concrete model to inductance L1, capacitance C1, L2 and capacitance C2, is selected according to specific design requirement.
In specific implementation, the utility model also provides a kind of power cabinet of embodiment, and power cabinet includes cabinet and is located at
Rectification circuit as described above in cabinet.Rectification circuit is mounted in power cabinet, is it as an independent product
He provides direct current by direct-flow electricity utilization apparatus.
The rectification circuit of power cabinet in the utility model embodiment, passes through bridge rectifier, Hall voltage sensor, filtering
Three-phase alternating current is transformed into direct current reliable, that ripple coefficient is small and smooth by the Combination Design of circuit and resonance circuit
Electricity can apply in High Frequency Solid State induction heating equipment, and high quality direct current is provided for follow-up DC inversion.
The utility model is further described by specific embodiment above, it should be understood that, have here
The description of body, should not be construed as the restriction to the spirit and scope of the utility model, and one of ordinary skilled in the art is readding
The various modifications made to above-described embodiment after reader specification belong to the range that the utility model is protected.
Claims (6)
1. a kind of rectification circuit of power cabinet, which is characterized in that the rectification circuit includes bridge rectifier, Hall voltage sensing
Device and filter circuit；
The input terminal of the bridge rectifier connects AC power, for converting the alternating voltage of AC power to direct current
Pressure；
The Hall voltage sensor is connect with the bridge rectifier, the output stability for controlling DC voltage；
The input terminal of the filter circuit is connect with the Hall voltage sensor, for the Hall voltage sensor both ends
Electric current be filtered to export filtered electric current.
2. rectification circuit as described in claim 1, which is characterized in that the rectification circuit further includes resonance circuit, described humorous
The circuit that shakes is connect with the output end of the filter circuit.
3. rectification circuit as claimed in claim 2, which is characterized in that the bridge rectifier include the first controllable silicon SCR 1,
Second controllable silicon SCR 2, third controllable silicon SCR 3, the 4th controllable silicon SCR 4, the 5th controllable silicon SCR 5 and the 6th controllable silicon SCR 6,
Wherein：
The anode of first controllable silicon SCR 1 is connected with the first of the AC power, and the third controllable silicon SCR 3 is just
Pole is connected with the second of the AC power, and the anode of the 5th controllable silicon SCR 5 is connected with the third of the AC power
It connects, the cathode of second controllable silicon SCR 2 is connected with the third of the AC power；4th controllable silicon SCR 4 is born
Pole is connected with the first of the AC power；The cathode of 6th controllable silicon SCR 6 is connected with the second of the AC power
It connects；
The cathode of first controllable silicon SCR 1, the cathode of the third controllable silicon SCR 3 and the 5th controllable silicon SCR 5 it is negative
Pole three connects and as the first output end of the bridge rectifier；The positive, described 4th of second controllable silicon SCR 2
The anode of controllable silicon SCR 4 connects and with the positive three of the 6th controllable silicon SCR 6 as the second of the bridge rectifier
Output end.
4. rectification circuit as claimed in claim 2, which is characterized in that the filter circuit includes common mode inductance L, the common mode
Two input terminals of inductance L connect one to one the first output end and second output terminal of the bridge rectifier respectively, described
Two output ends of common mode inductance L connect one to one respectively accesses first input end and the second input of the resonance circuit
End.
5. rectification circuit as claimed in claim 2, which is characterized in that the resonance circuit includes the first resonance parallel with one another
Circuit and the second resonance circuit, first resonance circuit include inductance L1 and capacitance C1, and second resonance circuit includes electricity
Feel L2 to connect with the capacitance C1 with capacitance C2, the inductance L1, the inductance L2 connects with the capacitance C2.
6. a kind of power cabinet, which is characterized in that the power cabinet include cabinet and in the cabinet such as claim 1-5
Rectification circuit described in any one.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820074320.5U CN207720038U (en) | 2018-01-17 | 2018-01-17 | A kind of rectification circuit and power cabinet of power cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820074320.5U CN207720038U (en) | 2018-01-17 | 2018-01-17 | A kind of rectification circuit and power cabinet of power cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN207720038U true CN207720038U (en) | 2018-08-10 |
Family
ID=63052026
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820074320.5U Expired - Fee Related CN207720038U (en) | 2018-01-17 | 2018-01-17 | A kind of rectification circuit and power cabinet of power cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN207720038U (en) |
-
2018
- 2018-01-17 CN CN201820074320.5U patent/CN207720038U/en not_active Expired - Fee Related
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20180810 Termination date: 20220117 |