CN104009538A - Auxiliary power source used for power distribution cabinet monitoring device and power distribution cabinet - Google Patents
Auxiliary power source used for power distribution cabinet monitoring device and power distribution cabinet Download PDFInfo
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- CN104009538A CN104009538A CN201410192126.3A CN201410192126A CN104009538A CN 104009538 A CN104009538 A CN 104009538A CN 201410192126 A CN201410192126 A CN 201410192126A CN 104009538 A CN104009538 A CN 104009538A
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- transformer
- distribution cabinet
- transducer
- power distribution
- monitoring device
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Abstract
The invention discloses an auxiliary power source used for a power distribution cabinet monitoring device and a power distribution cabinet. The auxiliary power source is arranged in the power distribution cabinet and comprises an adapter plate, a first transformer and a first DC/DC converter. The first transformer and the first DC/DC converter are respectively connected with the adapter plate in a pluggable mode. The auxiliary power source has the advantages that the auxiliary power source can output a 24V direct-current power source and a +/-12V direct-current power source which can fit different components in the monitoring device respectively, so that all the components in the monitoring device do not need to be provided with independent special power sources, and installation and use are convenient to carry out; the adapter plate is used for connecting all the components, the transformer and the DC/DC converter are arranged in the pluggable mode, and therefore installation and maintenance are easy to carry out; meanwhile, the auxiliary power source further support the standby power source function; as the transformer and a data center server share a zero line and a ground line, influence on work of a server system from zero-ground voltage can be prevented, and common mode noise can be effectively reduced.
Description
Technical field
The invention belongs to low-voltage distribution cabinet technical field, be specifically related to a kind of accessory power supply for monitoring device for power distribution cabinet and power distribution cabinet.
Background technology
In the data center machine room of using in reality, easily occur the situation of three-phase imbalance, when severe three-phase is uneven, can there is catastrophic hidden danger in machine room.Therefore, be necessary to arrange monitoring device, the threephase load situation of power distribution cabinet is monitored, avoid the generation of above-mentioned hidden danger.Yet, in monitoring device, need the dsp processor that comprises that the data to collecting are calculated, and the background monitoring equipment that shows Monitoring Data or receiving alarm, and the power supply of dsp processor and the different voltages of background monitoring equipment needs, when assembling monitoring device, also need to be equipped with separately adaptive power supply, complicated operation is loaded down with trivial details, and increasing device volume, takes up room.Therefore, be necessary, in power distribution cabinet inside, one accessory power supply is set, be convenient to monitoring device to power.
Summary of the invention
In order to overcome the defect existing in prior art, the invention provides a kind of accessory power supply for monitoring device for power distribution cabinet and power distribution cabinet.Concrete technical scheme is as follows:
For an accessory power supply for monitoring device for power distribution cabinet, be installed in power distribution cabinet, comprising: keyset, the first transformer and a DC/DC transducer; Wherein, the first transformer can plug and be connected with keyset respectively with a DC/DC transducer; The first transformer access 220V civil power;
On keyset, be integrated with the first full-wave rectifier, the first full-wave rectifier is connected with a DC/DC transducer with the first transformer respectively; On keyset, be also integrated with pressurizer assembly, the first output interface and the second output interface, pressurizer assembly is connected with the second output interface; The one DC/DC transducer comprise 24V and ± output of two groups of direct currents of 15V, wherein, the output of 24V direct current is directly via the first output interface output, the output of ± 15V direct current is linked into pressurizer assembly.
As prioritization scheme, accessory power supply also comprises can plug respectively the second transformer and the 2nd DC/DC transducer being connected with keyset; Wherein, the second transformer access 220V civil power;
On keyset, be also integrated with the second full-wave rectifier, the second full-wave rectifier is connected with the 2nd DC/DC transducer with the second transformer respectively; The 2nd DC/DC transducer comprise 24V and ± output of two groups of direct currents of 15V, wherein, the output of the 24V direct current of the 2nd DC/DC transducer is directly via the first output interface output, the 2nd DC/DC transducer ± output of 15V direct current is linked into pressurizer assembly.
As prioritization scheme, the first transformer and the second transformer are the autotransformer of 2:1.
As prioritization scheme, a DC/DC transducer is with the 2nd DC/DC transducer the DC/DC transducer that specification is identical.
As prioritization scheme, pressurizer assembly comprises a positive supply pressurizer and a negative supply pressurizer.
As prioritization scheme, positive supply pressurizer is positive supply three-terminal voltage-stabilizing IC, and negative supply pressurizer is negative supply three-terminal voltage-stabilizing IC.
A power distribution cabinet, its inside is provided with accessory power supply.
As prioritization scheme, power distribution cabinet is arranged in data center machine room, the zero line of the first transformer and or the zero line of the second transformer, be connected with the zero line of server system in data center machine room; The ground wire of the first transformer and or the ground wire of the second transformer, be connected with the ground wire of server system in data center machine room.
Compared with prior art, the present invention has following beneficial effect:
(1) the exportable 24V of accessory power supply provided by the invention and ± two kinds of DC power supply of 12V, can distinguish components and parts different in adaptive monitoring device, make each components and parts in monitoring device to assemble separately power source special, be convenient to install and use;
(2) accessory power supply provided by the invention adopts keyset that each components and parts are connected, and transformer and DC/DC transducer are and can plug design, is easy to install and safeguard; Meanwhile, accessory power supply is also supported stand-by power supply function;
(3) transformer in accessory power supply provided by the invention and data center server system common zero line and ground wire, can prevent zero impact of ground voltage on server system work, effectively reduces common mode noise.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of the accessory power supply for monitoring device for power distribution cabinet provided by the invention;
In upper figure, sequence number is: 1-keyset, 101-the first output interface, 102-the second output interface, 2a-the first transformer, 2b-the second transformer, 3a-the one DC/DC transducer, 3b-the 2nd DC/DC transducer, 4a-the first full-wave rectifier, 4b-the first full-wave rectifier, 5a-positive supply pressurizer, 5b-negative supply pressurizer.
Embodiment
Below in conjunction with accompanying drawing, in the mode of embodiment, describe the present invention in detail.
Embodiment 1:
As shown in Figure 1, a kind of accessory power supply for monitoring device for power distribution cabinet, is installed in power distribution cabinet, comprising: keyset 1, the first transformer 2a and a DC/DC transducer 3a; Wherein, the first transformer 2a can plug and be connected with keyset 1 respectively with a DC/DC transducer 3a; The first transformer 2a access 220V civil power.
On keyset 1, be integrated with the first full-wave rectifier 4a, the first full-wave rectifier 4a is connected with a DC/DC transducer 3a with the first transformer 2a respectively; On keyset 1, be also integrated with pressurizer assembly, the first output interface 101 and the second output interface 102, pressurizer assembly is connected with the second output interface 102; The one DC/DC transducer 3a comprise 24V and ± output of two groups of direct currents of 15V, wherein, the output of 24V direct current is directly via the first output interface 101 outputs, the output of ± 15V direct current is linked into pressurizer assembly.
In order to realize the function of stand-by power supply, in the present embodiment, accessory power supply also comprises can plug respectively the second transformer 2b and the 2nd DC/DC transducer 3b being connected with keyset 1; Wherein, the second transformer 2b access 220V civil power.
On keyset 1, be also integrated with the second full-wave rectifier 4b, the second full-wave rectifier 4b is connected with the 2nd DC/DC transducer 3b with the second transformer 2b respectively; The 2nd DC/DC transducer 3b comprise 24V and ± output of two groups of direct currents of 15V, wherein, the output of the 24V direct current of the 2nd DC/DC transducer 3b is directly via the first output interface 101 outputs, the 2nd DC/DC transducer 3b ± output of 15V direct current is linked into pressurizer assembly.
In the present embodiment, the first transformer 2a and the second transformer 2b are the autotransformer of 2:1, this autotransformer access 220V civil power, the line voltage of output 190V.The present invention does not limit the concrete model of autotransformer, so long as the autotransformer that turn ratio is 2:1 is all applicable.The first full-wave rectifier 4a is with the second full-wave rectifier 4b the three-phase main-frequency full-wave rectifier that structure is identical.The one DC/DC transducer 3a and the 2nd DC/DC transducer 3b are the DC/DC transducer that model is UHW241M5, but are not limited to this, as long as can realize similar technique function.Pressurizer assembly comprises a positive supply pressurizer 5a and a negative supply pressurizer 5b; Wherein, positive supply pressurizer 5a can select positive supply three-terminal voltage-stabilizing IC, negative supply pressurizer 5b can select negative supply three-terminal voltage-stabilizing IC, and the present invention does not limit the concrete model of positive supply three-terminal voltage-stabilizing IC and negative supply three-terminal voltage-stabilizing IC, as long as both match.This pressurizer assembly by a DC/DC transducer 3a and the 2nd DC/DC transducer 3b output ± the DC power supply output of be converted to ± 12V of 15V DC power supply.
Workflow of the present invention and using method are as follows:
The first transformer 2a and a DC/DC transducer 3a are patched on keyset 1, if will use stand-by power supply function, the second transformer 2b and the 2nd DC/DC transducer 3b are also patched on keyset 1.The first transformer 2a is converted to 190V line Voltage-output by 220V civil power; The three-phase output of the first transformer 2a is all linked into the first full-wave rectifier 4a, enters a DC/DC transducer 3a after full-wave rectification; The 24V of the one DC/DC transducer 3a and ± output of two groups of direct currents of 15V takes back keyset 1 again, wherein, the output of the direct current of 24V is directly via the first output interface 101 outputs, the direct current output access pressurizer assembly of ± 15V; Pressurizer assembly is the DC power supply of the be converted to ± 12V of DC power supply of ± 15V, then by the second output interface 102 outputs.
Wherein, by the first output interface 101 output 24V DC power supply, can, directly for the background monitoring equipment of monitoring device is powered, by the second output interface 102 output ± 12V DC power supply, can be directly the dsp processor power supply in monitoring device.
Embodiment 2:
The present embodiment provides a kind of power distribution cabinet, and its inside is provided with the accessory power supply that embodiment 1 provides.
The power distribution cabinet that the present embodiment provides is applicable to a kind of special application scenario, when power distribution cabinet is used for data center machine room, the zero line of the first transformer 2a (can be also the zero line of the second transformer 2b, or two zero lines that transformer is common) is connected with the zero line of server system in data center machine room; , the ground wire of the first transformer 2a (can be also the ground wire of the second transformer 2b, or two ground wires that transformer is common) is connected with the ground wire of server system in data center machine room meanwhile, sees Fig. 1.Because power distribution cabinet is arranged in data center machine room, close together with server system, to be arranged on after transformer in power distribution cabinet and server system have carried out common zero line and ground wire arranges altogether, can reduce zero ground voltage, make it be less than 1V, control zero impact of ground voltage on server system work, meanwhile, can also reduce common mode noise.
The other technologies feature of the present embodiment is all identical with embodiment 1, does not repeat them here.
Disclosed is above only two specific embodiments of the application, but the not limited thereto the changes that any person skilled in the art can think of of the application all should drop in the application's protection range.
Claims (8)
1. for an accessory power supply for monitoring device for power distribution cabinet, it is characterized in that, be installed in power distribution cabinet, comprising: keyset, the first transformer and a DC/DC transducer; Wherein, described the first transformer can plug and be connected with described keyset respectively with a described DC/DC transducer; Described the first transformer access 220V civil power;
On described keyset, be integrated with the first full-wave rectifier, described the first full-wave rectifier is connected with a described DC/DC transducer with described the first transformer respectively; On described keyset, be also integrated with pressurizer assembly, the first output interface and the second output interface, described pressurizer assembly is connected with described the second output interface; A described DC/DC transducer comprise 24V and ± output of two groups of direct currents of 15V, wherein, described 24V direct current output is directly via described the first output interface output, described ± 15V direct current output is linked into described pressurizer assembly.
2. a kind of accessory power supply for monitoring device for power distribution cabinet according to claim 1, is characterized in that, also comprises respectively and can plug the second transformer and the 2nd DC/DC transducer being connected with described keyset; Wherein, described the second transformer access 220V civil power;
On described keyset, be also integrated with the second full-wave rectifier, described the second full-wave rectifier is connected with described the 2nd DC/DC transducer with described the second transformer respectively; Described the 2nd DC/DC transducer comprise 24V and ± output of two groups of direct currents of 15V, wherein, the 24V direct current output of described the 2nd DC/DC transducer is directly via described the first output interface output, described the 2nd DC/DC transducer ± output of 15V direct current is linked into described pressurizer assembly.
3. a kind of accessory power supply for monitoring device for power distribution cabinet according to claim 2, is characterized in that, described the first transformer and described the second transformer are the autotransformer of 2:1.
4. a kind of accessory power supply for monitoring device for power distribution cabinet according to claim 2, is characterized in that, a described DC/DC transducer and described the 2nd DC/DC transducer are the DC/DC transducer of same specification.
5. a kind of accessory power supply for monitoring device for power distribution cabinet according to claim 2, is characterized in that, described pressurizer assembly comprises a positive supply pressurizer and a negative supply pressurizer.
6. a kind of accessory power supply for monitoring device for power distribution cabinet according to claim 5, is characterized in that, described positive supply pressurizer is positive supply three-terminal voltage-stabilizing IC, and described negative supply pressurizer is negative supply three-terminal voltage-stabilizing IC.
7. a power distribution cabinet, is characterized in that, its inside is provided with accessory power supply as claimed in claim 1.
8. a kind of power distribution cabinet according to claim 7, is characterized in that, is arranged in data center machine room; The zero line of described the first transformer and or the zero line of described the second transformer, be connected with the zero line of server system in described data center machine room; The ground wire of described the first transformer with or the ground wire of described the second transformer be connected with the ground wire of server system in described data center machine room.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410192126.3A CN104009538B (en) | 2014-05-08 | 2014-05-08 | A kind of accessory power supply and power distribution cabinet for monitoring device for power distribution cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410192126.3A CN104009538B (en) | 2014-05-08 | 2014-05-08 | A kind of accessory power supply and power distribution cabinet for monitoring device for power distribution cabinet |
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| Publication Number | Publication Date |
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| CN104009538A true CN104009538A (en) | 2014-08-27 |
| CN104009538B CN104009538B (en) | 2019-01-29 |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102044911A (en) * | 2010-11-29 | 2011-05-04 | 东莞市开关厂有限公司 | FTU terminal power supply real-time monitoring device for power distribution monitoring system |
| CN202094709U (en) * | 2011-06-28 | 2011-12-28 | 北京易投嘉德投资咨询有限公司 | Monitoring device for power distribution cabinet |
| CN203522540U (en) * | 2013-09-30 | 2014-04-02 | 南京理工大学 | High frequency switch power supply device used for transformer substation |
| CN204030715U (en) * | 2014-05-08 | 2014-12-17 | 上海银音信息科技股份有限公司 | A kind of accessory power supply for monitoring device for power distribution cabinet and power distribution cabinet |
-
2014
- 2014-05-08 CN CN201410192126.3A patent/CN104009538B/en active Active
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102044911A (en) * | 2010-11-29 | 2011-05-04 | 东莞市开关厂有限公司 | FTU terminal power supply real-time monitoring device for power distribution monitoring system |
| CN202094709U (en) * | 2011-06-28 | 2011-12-28 | 北京易投嘉德投资咨询有限公司 | Monitoring device for power distribution cabinet |
| CN203522540U (en) * | 2013-09-30 | 2014-04-02 | 南京理工大学 | High frequency switch power supply device used for transformer substation |
| CN204030715U (en) * | 2014-05-08 | 2014-12-17 | 上海银音信息科技股份有限公司 | A kind of accessory power supply for monitoring device for power distribution cabinet and power distribution cabinet |
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| CN104009538B (en) | 2019-01-29 |
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