CN209233715U - A kind of high voltage direct current power supply system - Google Patents
A kind of high voltage direct current power supply system Download PDFInfo
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- CN209233715U CN209233715U CN201920227899.9U CN201920227899U CN209233715U CN 209233715 U CN209233715 U CN 209233715U CN 201920227899 U CN201920227899 U CN 201920227899U CN 209233715 U CN209233715 U CN 209233715U
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Abstract
This application discloses a kind of high voltage direct current power supply systems, conversion equipment, first diode and the second diode including converting alternating current to direct current electricity output, in which: total output port of high voltage direct current power supply system includes first port and second port；The direct current output port of conversion equipment includes positive port and negative terminal mouth；The cathode of first diode is connected with positive port or first port, and the anode of first diode is connected with negative terminal mouth or second port；For second Diode series between any direct current output port and corresponding total output port, conducting direction is identical as the output current direction of the direct current output port.If total output port is connected to alternating current by client's maloperation, second diode prevents external alternating current from entering conversion equipment, first diode can be by first port and second port short circuit, extraneous alternating current is avoided to enter conversion equipment, to improve operation fault tolerance rate, appearance the case where malfunction and failure when avoiding client's maloperation.
Description
Technical field
The utility model relates to high voltage supply field, in particular to a kind of high voltage direct current power supply system.
Background technique
As technological improvement and equipment update, direct current supply is more more reliable than Alternating Current Power Supply, and high voltage direct current is powered increasingly
Favor by consumer.In high voltage direct current power supply system, the high pressure of 240V is converted alternating current to by high-voltage direct module
Direct current, client supply electricity to different electric power supplies using the high voltage direct current of output.
But since many clients not enough understand current high voltage direct current power supply unit or careless, accidentally by alternating current
It has been connected to high voltage direct current output end, has finally resulted in the filter capacitor excessive pressure damages of high-voltage direct module output end, thus entire high
Press DC power-supply system failure.
Therefore, how to provide a kind of scheme of solution above-mentioned technical problem is that current those skilled in the art need to solve
Problem.
Utility model content
In view of this, avoiding client's maloperation the purpose of this utility model is to provide a kind of high voltage direct current power supply system
When entire high voltage direct current power supply system malfunction and failure.Its concrete scheme is as follows:
A kind of high voltage direct current power supply system, conversion equipment, the one or two pole including converting alternating current to direct current electricity output
Pipe and the second diode, in which:
Total output port of the high voltage direct current power supply system includes first port and second port；
The direct current output port of the conversion equipment includes positive port and negative terminal mouth, respectively with the first port and described
Second port is corresponding；
The cathode of the first diode is connected with the positive port or the first port, the sun of the first diode
Pole is connected with the negative terminal mouth or the second port；
Second Diode series are between any direct current output port and corresponding total output port, conducting side
It is identical to the output current direction with the direct current output port.
Preferably, the anode of second diode homogeneously connects with the cathode of the first diode, the positive port；
The cathode of second diode is connected with the first port；
The negative terminal mouth is connected with the second port.
Preferably, the anode of second diode is connected with the positive port；
The cathode of second diode is connected with the cathode of the first diode, the first port；
The negative terminal mouth is connected with the second port.
Preferably, the positive port is connected with the first port；
The cathode of second diode homogeneously connects with the anode of the first diode, the positive port；
The anode of second diode is connected with the second port.
Preferably, the positive port is connected with the first port；
The anode of second diode is connected with the anode of the first diode, the second port；
The cathode of second diode is connected with the negative terminal mouth.
Preferably, the high voltage direct current power supply system further include:
The voltage monitor that both ends are connect with the first port and the second port respectively.
Preferably, the high voltage direct current power supply system further include:
The warning device being connected with the voltage monitor.
The utility model discloses a kind of high voltage direct current power supply systems, including converting alternating current to turning for direct current electricity output
Changing device, first diode and the second diode, in which: total output port of the high voltage direct current power supply system includes first end
Mouth and second port；The direct current output port of the conversion equipment includes positive port and negative terminal mouth, respectively with the first port
It is corresponding with the second port；The cathode of the first diode is connected with the positive port or the first port, and described
The anode of one diode is connected with the negative terminal mouth or the second port；Second Diode series are in any direct current
Between output port and corresponding total output port, conducting direction is identical as the output current direction of the direct current output port.Such as
Total output port is connected to alternating current by fruit client maloperation, in the utility model, in alternating current positive half period, the second diode resistance
Only external alternating current enters conversion equipment, and in alternating current negative half-cycle, first diode can be by first port and second port
Short circuit avoids extraneous alternating current from entering conversion equipment, so that the operation that the utility model improves high voltage direct current power supply system is held
Error rate, appearance the case where high voltage direct current power supply system malfunction and failure when avoiding client's maloperation.
Detailed description of the invention
In order to illustrate the embodiment of the utility model or the technical proposal in the existing technology more clearly, below will be to embodiment
Or attached drawing needed to be used in the description of the prior art is briefly described, it should be apparent that, the accompanying drawings in the following description is only
It is the embodiments of the present invention, for those of ordinary skill in the art, without creative efforts, also
Other attached drawings can be obtained according to the attached drawing of offer.
Fig. 1 a is a kind of structure distribution figure of high voltage direct current power supply system in the utility model；
Fig. 1 b is the structure distribution figure of another high voltage direct current power supply system in the utility model；
Fig. 1 c is the structure distribution figure of another high voltage direct current power supply system in the utility model；
Fig. 1 d is the structure distribution figure of another high voltage direct current power supply system in the utility model；
Fig. 2 is the structure distribution figure of another high voltage direct current power supply system in the utility model.
Specific embodiment
The following will be combined with the drawings in the embodiments of the present invention, carries out the technical scheme in the embodiment of the utility model
Clearly and completely describe, it is clear that the described embodiments are only a part of the embodiments of the utility model, rather than whole
Embodiment.Based on the embodiments of the present invention, those of ordinary skill in the art are without making creative work
Every other embodiment obtained, fall within the protection scope of the utility model.
The utility model embodiment discloses a kind of high voltage direct current power supply system, including to convert alternating current to direct current defeated
Conversion equipment 1, first diode D1 and the second diode D2 out, in which:
Total output port V of the high voltage direct current power supply system includes first port V+ and second port V-；
The direct current output port VO of the conversion equipment 1 includes positive port VO+ and negative terminal mouth VO-, respectively with described first
The port V+ and second port V- is corresponding；
The cathode of the first diode D1 is connected with the positive port VO+ or the first port V+, and the described 1st
The anode of pole pipe D1 is connected with the negative terminal mouth VO- or the second port V-；
The second diode D2 is series between any direct current output port VO and corresponding total output port V,
Conducting direction is identical as the output current direction of direct current output port VO.
It is understood that the common of conversion equipment 1 is set as inputting 220V alternating current, 240V direct current, conversion are exported
Device 1 includes input protective module, in-line power device and the high-voltage direct module including output end filter capacitor, high voltage direct current
DC output end VO of the output port of module as conversion equipment 1.Alternating current is connected to DC output end VO when client misses,
The voltage peak of 220V alternating current reaches 311V, much higher than the pressure voltage of output end filter capacitor, output end is easy to cause to filter
Capacitor excessive pressure damages.
In the present embodiment, if the normal output direct current of conversion equipment 1, first diode D1 and the second diode D2's
Wiring direction makes normal transmission electric current between direct current output port VO and total output port V；If client's maloperation, the one or two
Pole pipe D1 and the second diode D2 can prevent total output port V to DC output end VO input AC electricity, specific: total output
When the alternating current positive half period of port V input, the second diode D2 plays the role of reversely ending, and protects direct current output port
VO；When the alternating current negative half-cycle of total output port input, first diode D1 conducting, alternating current is flowed into from second port V-
By flowing back to first port V+ after first diode D1, alternating current may not flow into DC port VO, avoid filter capacitor over-voltage
Damage.As can be seen that the present embodiment just plays the effect of effective protection conversion equipment 1 using two diodes, cost is extremely low,
Power loss is small, is a kind of very high product of market economy.
Wherein, selection scheme there are many relative positional relationships of first diode D1 and the second diode D2, referring specifically to
Fig. 1 a, Fig. 1 b, Fig. 1 c and Fig. 1 d.
In fig 1 a, cathode, the positive port VO+ of the anode of the second diode D2 and the first diode D1
It is connected；The cathode of the second diode D2 is connected with the first port V+；The negative terminal mouth VO- and the second port
V- is connected.
In Figure 1b, the anode of the second diode D2 is connected with the positive port VO+；The second diode D2's
Cathode is connected with the cathode of the first diode D1, the first port V+；The negative terminal mouth VO- and the second port
V- is connected.
In figure 1 c, the positive port VO+ is connected with the first port V+；The cathode of the second diode D2 and institute
State the anode of first diode D1, the positive port VO+ is connected；The anode of the second diode D2 and the second port
V- is connected.
In Fig. 1 d, the positive port VO+ is connected with the first port V+；The anode of the second diode D2 and institute
State the anode of first diode D1, the second port V- is connected；The cathode and the negative terminal mouth of the second diode D2
VO- is connected.
The utility model discloses a kind of high voltage direct current power supply systems, including converting alternating current to turning for direct current electricity output
Changing device, first diode and the second diode, in which: total output port of the high voltage direct current power supply system includes first end
Mouth and second port；The direct current output port of the conversion equipment includes positive port and negative terminal mouth, respectively with the first port
It is corresponding with the second port；The cathode of the first diode is connected with the positive port or the first port, and described
The anode of one diode is connected with the negative terminal mouth or the second port；Second Diode series are in any direct current
Between output port and corresponding total output port, conducting direction is identical as the output current direction of the direct current output port.Such as
Total output port is connected to alternating current by fruit client maloperation, in the utility model, in alternating current positive half period, the second diode resistance
Only external alternating current enters conversion equipment, and in alternating current negative half-cycle, first diode can be by first port and second port
Short circuit avoids extraneous alternating current from entering conversion equipment, so that the operation that the utility model improves high voltage direct current power supply system is held
Error rate, appearance the case where high voltage direct current power supply system malfunction and failure when avoiding client's maloperation.
The utility model embodiment discloses a kind of specific high voltage direct current power supply system, relative to a upper embodiment, originally
Embodiment has made further instruction and optimization to technical solution.Specifically, shown in Figure 2, high voltage direct current power supply system
System further include:
The voltage monitor 2 that both ends are connect with the first port V+ and the second port V- respectively.
Further, the high voltage direct current power supply system further include:
The warning device 3 being connected with the voltage monitor 2.
It is understood that voltage monitor 2 and warning device 3 here can be added according to the connection type of setting
In four figures (Fig. 1 a, Fig. 1 b, Fig. 1 c and Fig. 1 d) in any one of a upper embodiment, and Fig. 2 be on the basis of Fig. 1 a into
Capable modification.
Wherein, voltage monitor 2 is used to monitor the voltage between first port V+ and second port V-, when voltage is more than
Predetermined voltage range, voltage monitor 2 send alarm signal to warning device 3, and warning device 3 is warned to staff.
Specifically, the concrete form of warning device 3 may include buzzer and/or warning lamp, it can also include other energy
The device of warning of staff is enough reminded, details are not described herein again.
The present embodiment can effectively eliminate client's maloperation, exchange is electrically accessed to high voltage direct current power supply system total output end when
Influence to conversion equipment avoids the possibility of entire DC power-supply system damage.
The foregoing description of the disclosed embodiments makes those skilled in the art can be realized or use the utility model.
Various modifications to these embodiments will be apparent for a person skilled in the art, general original as defined herein
Reason can be realized in other embodiments without departing from the spirit or scope of the present utility model.Therefore, this is practical new
Type is not intended to be limited to the embodiments shown herein, and is to fit to and the principles and novel features disclosed herein phase
Consistent widest scope.
Claims (7)
1. a kind of high voltage direct current power supply system, which is characterized in that including convert alternating current to direct current electricity output conversion equipment,
First diode and the second diode, in which:
Total output port of the high voltage direct current power supply system includes first port and second port；
The direct current output port of the conversion equipment includes positive port and negative terminal mouth, respectively with the first port and described second
Port is corresponding；
The cathode of the first diode is connected with the positive port or the first port, the anode of the first diode with
The negative terminal mouth or the second port are connected；
Second Diode series between any direct current output port and corresponding total output port, conducting direction with
The output current direction of the direct current output port is identical.
2. high voltage direct current power supply system according to claim 1, which is characterized in that
The anode of second diode homogeneously connects with the cathode of the first diode, the positive port；
The cathode of second diode is connected with the first port；
The negative terminal mouth is connected with the second port.
3. high voltage direct current power supply system according to claim 1, which is characterized in that
The anode of second diode is connected with the positive port；
The cathode of second diode is connected with the cathode of the first diode, the first port；
The negative terminal mouth is connected with the second port.
4. high voltage direct current power supply system according to claim 1, which is characterized in that
The positive port is connected with the first port；
The cathode of second diode homogeneously connects with the anode of the first diode, the positive port；
The anode of second diode is connected with the second port.
5. high voltage direct current power supply system according to claim 1, which is characterized in that
The positive port is connected with the first port；
The anode of second diode is connected with the anode of the first diode, the second port；
The cathode of second diode is connected with the negative terminal mouth.
6. according to claim 1 to any one of 5 high voltage direct current power supply systems, which is characterized in that further include:
The voltage monitor that both ends are connect with the first port and the second port respectively.
7. high voltage direct current power supply system according to claim 6, which is characterized in that further include: with the voltage monitor
Connected warning device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920227899.9U CN209233715U (en) | 2019-02-20 | 2019-02-20 | A kind of high voltage direct current power supply system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201920227899.9U CN209233715U (en) | 2019-02-20 | 2019-02-20 | A kind of high voltage direct current power supply system |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209233715U true CN209233715U (en) | 2019-08-09 |
Family
ID=67511253
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201920227899.9U Active CN209233715U (en) | 2019-02-20 | 2019-02-20 | A kind of high voltage direct current power supply system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209233715U (en) |
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2019
- 2019-02-20 CN CN201920227899.9U patent/CN209233715U/en active Active
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| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CB03 | Change of inventor or designer information |
Inventor after: Hua Qiang Inventor after: Zhang Qian Inventor after: Zhu Ping Inventor after: Deng Ming Inventor after: Wang Xi Inventor after: Chen Junyu Inventor after: Fang Yong Inventor after: Li Jia Inventor after: Chen Chi Inventor after: Yang Zhiguo Inventor before: Zhu Ping Inventor before: Deng Ming Inventor before: Wang Xi Inventor before: Chen Junyu Inventor before: Fang Yong Inventor before: Li Jia Inventor before: Chen Chi Inventor before: Yang Zhiguo Inventor before: Zhang Qian |
|
| CB03 | Change of inventor or designer information | ||
| CP03 | Change of name, title or address |
Address after: Room 501, Building 5, No. 425, Miaohouwang Road, Xixing Street, Binjiang District, Hangzhou City, Zhejiang Province, 310000 Patentee after: Zhejiang Paiwei Digital Technology Co.,Ltd. Patentee after: WUHAN STREET LAMP MANAGEMENT SERVICE CENTER Address before: 1st Floor, Building 2, No. 69, Dongxin Avenue, Binjiang District, Hangzhou City, Zhejiang Province, 310000 Patentee before: HANGZHOU ZHONGHENG POWER ENERGY CO.,LTD. Patentee before: WUHAN STREET LAMP MANAGEMENT SERVICE CENTER |
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| CP03 | Change of name, title or address |