CN208314053U - AC three-phase ammeter and power distribution unit - Google Patents
AC three-phase ammeter and power distribution unit Download PDFInfo
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- CN208314053U CN208314053U CN201820768081.3U CN201820768081U CN208314053U CN 208314053 U CN208314053 U CN 208314053U CN 201820768081 U CN201820768081 U CN 201820768081U CN 208314053 U CN208314053 U CN 208314053U
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Abstract
The utility model discloses a kind of AC three-phase ammeter and power distribution units, the AC three-phase ammeter, it include: ammeter ontology, segment encode LCD, key module, buzzer, LED alarm lamp, power-fail detection circuit and current sampling circuit, wherein, the ammeter ontology uses the SOC system integrated chip of model 71M6543, the key module, power-fail detection circuit and current sampling circuit are respectively connected to the input pin of the ammeter ontology, and the segment encode LCD, buzzer, LED alarm lamp are respectively connected to the output pin of the ammeter ontology.The utility model can measure the electric current in socket by increasing AC three-phase ammeter in power distribution unit, make staff can be with the working condition of timely learning electrical equipment, so as in time, in time control.
Description
Technical field
The utility model relates to Electric Manufacture field, in particular to a kind of AC three-phase ammeter and power distribution unit.
Background technique
Power distribution unit (Power Distribution Unit), abbreviation PDU is a kind of suitable for server, exchange
The power distribution utensil of the various electronic and electrical equipments such as machine and cabinet.With the increase for the number of devices installed in cabinet, individually
The presence of the diversity, complexity of equipment in cabinet will provide enough, suitable power distribution for each load in cabinet,
It is to be directly related to the availability for guaranteeing IT system, and the important basic link of its proper efficiency can be played, if machine
In great confusion fiber crops of cable in cabinet, it is easy to the problems such as causing the plug of mistake, or even often to face power down, current overload
It threatens, to largely effect on the stability and safety of IT system.By the use of the PDU product of industrial standard, network can be made
The power safety of product more improves, and meets the requirement of important equipment power input.
In PDU use process, has power supply or the unstable situation of electric current occurs, if can not be found to go forward side by side in time
Row control is easy to influence the working condition of electrical equipment.
Utility model content
The utility model provides a kind of AC three-phase ammeter and power distribution unit, existing in the prior art to solve
Above-mentioned technical problem.
In order to solve the above technical problems, the utility model provides a kind of AC three-phase ammeter, comprising: ammeter ontology, section
Code LCD, key module, buzzer, LED alarm lamp, power-fail detection circuit and current sampling circuit, wherein the ammeter sheet
Body uses the SOC system integrated chip of model 71M6543, the key module, power-fail detection circuit and current sampling circuit
It is respectively connected to the input pin of the ammeter ontology, the segment encode LCD, buzzer, LED alarm lamp are respectively connected to the electricity
The output pin of table ontology.
Preferably, being additionally provided with backlight in the segment encode LCD.
Preferably, further including filter circuit, the filter circuit is connected to the ammeter ontology.
Preferably, further including the memory being connect with the ammeter ontology.
Preferably, being also connected with crystal oscillator chip on the ammeter ontology.
The utility model also provides a kind of power distribution unit, including socket and the AC three-phase ammeter, wherein
The socket passes through the power-fail detection circuit and current sampling circuit respectively and connect with ammeter ontology.
Compared with prior art, the utility model increases AC three-phase ammeter on the basis of Power Management Unit,
The ammeter can be measured and be monitored to the electric current in socket by current sampling circuit, can be with by power-fail detection circuit
Judge socket whether power down, thus the situation of the electrical equipment on authentic and valid reflection socket, also, the AC three-phase electric current
Table has key module, buzzer and LED alarm lamp, can alarm in abnormal parameters, greatly reduce operator
Operating time and operating cost, improve efficiency, and can in time, in time control electrical equipment, avoid electrical equipment from damaging
It is bad, and then influence the working condition of other electrical equipments.
Detailed description of the invention
Fig. 1 is the structure principle chart of the power distribution unit with AC three-phase ammeter of the utility model；
Fig. 2 is the circuit diagram of primary processor in the power distribution unit of the utility model；
Fig. 3 is the schematic diagram of power-fail detection circuit and current sampling circuit in the power distribution unit of the utility model.
It is as shown in the figure: 10- socket, 30- ammeter ontology, 41- segment encode LCD, 42- buzzer, 43-LED alarm lamp, 44- back
Light lamp, 50- key module, 61- power-fail detection circuit, 62- current sampling circuit, 71- crystal oscillator chip, 72- filter circuit, 73-
Memory.
Specific embodiment
To keep the above objects, features, and advantages of the utility model more obvious and easy to understand, with reference to the accompanying drawing to this
The specific embodiment of utility model is described in detail.It should be noted that the utility model attached drawing is all made of simplified form
And non-accurate ratio is used, only to convenient, lucidly aid illustration the utility model embodiment purpose.
As shown in Figure 1, the utility model provides a kind of power distribution unit, including socket 10 and it is connect with the socket 10
AC three-phase ammeter.
With continued reference to Fig. 1, the AC three-phase ammeter includes: ammeter ontology 30, segment encode LCD41, key module 50, bee
Ring device 42, LED alarm lamp 43, backlight 44, power-fail detection circuit 61 and current sampling circuit 62.
As shown in Fig. 2, SOC system integrated chip of the ammeter ontology 30 using model 71M6543, is collection metering
Function, micro controller function, real-time clock, LCD driving and the functions such as temperature-compensating are in the system level chip of one, therefore it can be with
Electric current on socket 10 is sampled and monitored, so as to the working condition of the electrical equipment on timely learning socket 10.
As shown in figures 1 and 3, the key module 50, power-fail detection circuit 61 and current sampling circuit 62 are separately connected
To the input pin of the ammeter ontology 30.Specifically, power-fail detection circuit 61 is monitored the voltage on socket 10, with
Just it in 10 power down of socket, can be found in time, the current sampling circuit 62 acquires the current signal on socket 10, and passes
The ammeter ontology 30 is passed, the ammeter ontology 30 measures the power consumption parameter on socket 10 according to current signal.
The operating mode of ammeter ontology 30 can be switched over and be adjusted by the key module 50.Specifically, electric
Long-pressing key 2s under 30 normal operating conditions of table ontology can make ammeter ontology 30 enter alarm threshold value and state, this period is arranged
Code LCD41 shows current alerts threshold value, and short-press key module 50, alarm threshold value is cumulative by the stepping of 1A, and highest is arranged to specified
Restart to add up from 1 after current value, again long-pressing key module 50 two seconds, segment encode LCD41 restores normal display, and power down is still
This alarm threshold value can be saved.
The segment encode LCD41, buzzer 42, backlight 44 and LED alarm lamp 43 are respectively connected to the ammeter ontology 30
Output pin, and the backlight 44 is arranged in the segment encode LCD41.Wherein, the segment encode LCD41 is for number display
AC three-phase electric current, specifically: front two is played on the left side indicates phase, is indicated with L1, L2, L3；Three indicate respective phase afterwards
Current value, intermediate one does not show.Can be manually in each alternate switching by key, current value is accurate to one decimal place.
The buzzer 42, backlight 44 and LED alarm lamp 43 are used in controller, are flashed and are mentioned
It wakes up.Specifically, when electric current is more than alarm threshold value but is lower than rated current, backlight 44 and LED alarm lamp 43 flash；Work as electricity
When stream is more than rated current, backlight 44 and LED alarm lamp 43 flash, while 42 sound of buzzer.Long-pressing key module 50 two seconds,
Audible alarm can be eliminated, only backlight 44 and LED alarm lamp 43 flashes, then long-pressing 2s can restart audible alarm.
After electric current restores alarm current or less, restore normal display.
Preferably, crystal oscillator chip 71, filter circuit 72 and memory 73 are also connected on the ammeter ontology 30,
In, the memory 73 is used to store the setting parameter and power consumption parameter of ammeter.
In conclusion the utility model increases AC three-phase ammeter on the basis of Power Management Unit, the electric current
Table is measured and is monitored to the electric current in socket 10 by current sampling unit 62, may determine that by power-fail detection circuit 61
Socket 10 whether power down, thus the situation of the electrical equipment on authentic and valid reflection socket, also, the AC three-phase ammeter
With key module 50, buzzer 42 and LED alarm lamp 43, it can alarm in abnormal parameters, greatly reduce operation
The operating time of personnel and operating cost, improve efficiency, and can in time, in time control electrical equipment, avoid electrical equipment from sending out
Raw damage, and then influence the working condition of other electrical equipments.
Obviously, it is practical new without departing from this can to carry out various modification and variations to utility model by those skilled in the art
The spirit and scope of type.If in this way, these modifications and variations of the present invention belong to the utility model claims and its
Within the scope of equivalent technologies, then the utility model is also intended to including these modification and variations.
Claims (6)
1. a kind of AC three-phase ammeter characterized by comprising ammeter ontology, segment encode LCD, key module, buzzer, LED
Alarm lamp, power-fail detection circuit and current sampling circuit, wherein the ammeter ontology uses the SOC system of model 71M6543
System integrated chip, the key module, power-fail detection circuit and current sampling circuit are respectively connected to the defeated of the ammeter ontology
Enter pin, the segment encode LCD, buzzer, LED alarm lamp are respectively connected to the output pin of the ammeter ontology.
2. AC three-phase ammeter as described in claim 1, which is characterized in that be additionally provided with backlight in the segment encode LCD.
3. AC three-phase ammeter as described in claim 1, which is characterized in that it further include filter circuit, the filter circuit
It is connected to the ammeter ontology.
4. AC three-phase ammeter as described in claim 1, which is characterized in that further include being deposited with what the ammeter ontology was connect
Reservoir.
5. AC three-phase ammeter as described in claim 1, which is characterized in that be also connected with crystal oscillator core on the ammeter ontology
Piece.
6. a kind of power distribution unit, which is characterized in that the friendship including socket and as described in any one of Claims 1 to 5
Flow three-phase electricity flow table, wherein the socket passes through the power-fail detection circuit and current sampling circuit and ammeter ontology respectively
Connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820768081.3U CN208314053U (en) | 2018-05-22 | 2018-05-22 | AC three-phase ammeter and power distribution unit |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201820768081.3U CN208314053U (en) | 2018-05-22 | 2018-05-22 | AC three-phase ammeter and power distribution unit |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN208314053U true CN208314053U (en) | 2019-01-01 |
Family
ID=64715172
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201820768081.3U Active CN208314053U (en) | 2018-05-22 | 2018-05-22 | AC three-phase ammeter and power distribution unit |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN208314053U (en) |
-
2018
- 2018-05-22 CN CN201820768081.3U patent/CN208314053U/en active Active
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