CN205067589U - Cubical switchboard thermote - Google Patents
Cubical switchboard thermote Download PDFInfo
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- CN205067589U CN205067589U CN201520851777.9U CN201520851777U CN205067589U CN 205067589 U CN205067589 U CN 205067589U CN 201520851777 U CN201520851777 U CN 201520851777U CN 205067589 U CN205067589 U CN 205067589U
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Abstract
The utility model relates to an electric detection area provides a cubical switchboard thermote, including measured module, observe and control the module, pilot lamp and alarm, measured module includes a current transformer, it includes AD translation unit, MCU unit and light control unit to observe and control the module, the pilot lamp is colored LED signal lamp, current transformer is used for gathering in real time the load current value of cubical switchboard to measuring -signal passes through the AD translation unit input the MCU unit, the MCU unit is used for the current value of comparison input and the size of rated current value to export corresponding control signal extremely light control unit, the light control unit basis control signal control the LED signal lamp sends the light of different color / frequencies. Use this cubical switchboard thermote, the administrator needn't look over the concrete data of ampere meter and can surveyability ground not know the electric energy load conditions of each cubical switchboard that simple and clear both the time of having practiced thrift, was difficult for again causing danger.
Description
Technical field
The utility model relates to electric detection field, especially a kind of switch cubicle thermote.
Background technology
Along with the development of electric power science and technology, high pressure and UHV (ultra-high voltage) power distribution network also appear in each bulk power grid more and more.High-tension switch cabinet is as important electric equipment, and in long-term operational process formula, usually have various factors to cause load current excessive, load is overheated, and serious meeting causes fire failure.
Load state when current switch cubicle runs mainly is known by the reometer be arranged on switch cabinet panel, and representation is generally mechanical pointer or electronic digital display.When keeper need understand electric power loads situation, need power distribution cabinet be come into, check reometer one by one, read the load current value when pre-test current value and transmission line circuit, and just can understand after making comparisons, very inconvenient and easily cause danger.
Utility model content
The technical matters that the utility model solves is to provide a kind of switch cubicle thermote, for simple and clear indicator cock cabinet loading condition, is convenient to managerial personnel and checks and manage.
In order to solve the problem, the utility model have employed following technical scheme:
A kind of switch cubicle thermote, comprises measurement module, control module, pilot lamp and alarm; Described measurement module comprises a current transformer, and described control module comprises AD conversion unit, MCU unit and light control unit, and described pilot lamp is colorful LED signal lamp; Described current transformer is used for the load current value of Real-time Collection switch cubicle, and measuring-signal is inputted described MCU unit through described AD conversion unit, described MCU unit is for the size of the current value and load current value that compare input, and exporting corresponding control signal to described light control unit, described light control unit controls according to described control signal the light that described LED signal lamp sends different color/frequency.
Further, described light control unit comprises for providing the predetermined driving constant pressure source driving constant voltage, for the driving constant voltage of described driving constant pressure source being converted to the driving circuit of the multiple drive currents driving described colorful LED signal lamp, and for compensating the temperature compensation unit causing described drive current variations because of temperature variation.
Preferably, described drive current comprises red LED drive current, green LED drive current and yellow led drive current.
Further, described temperature compensation unit comprises NTC thermistor and linear compensation resistance device.
Switch cubicle thermote of the present utility model, when its work, the load current value of described current transformer Real-time Collection switch cubicle, and measuring-signal is inputted described MCU unit through described AD conversion unit, described MCU unit compares the current value of input and the size of load current value, control signal is sent to described light control unit, shows different colors to control colorful LED signal lamp.Such as, when load current value is zero, controls pilot lamp and be shown as pure green; When load current equals load current value (saturated), control pilot lamp and be shown as pure red; When load current is between above-mentioned two values, controlling the Color pair of pilot lamp, to answer the size of load current value to do green, yellow, red gradual change display; When load current value is greater than load current value, control the flicker of pilot lamp redness.
Use switch cubicle thermote of the present utility model, switch cubicle keeper need not check that the concrete data of reometer can understand the electric power loads situation of each switch cubicle at a glance, simple and clear, has both saved the time, and has not easily caused danger again.
Accompanying drawing explanation
Fig. 1 is the embodiment schematic diagram of switch cubicle thermote of the present utility model;
Fig. 2 is the circuit diagram of light control unit and colorful LED signal lamp in Fig. 1 embodiment;
Description of reference numerals: 1-measurement module, 2-control module, 3-color LED pilot lamp, 4-alarm.
Embodiment
In order to understand the utility model further, below in conjunction with embodiment, the utility model preferred embodiment is described, but should be appreciated that these describe just for further illustrating feature and advantage of the present utility model, instead of the restriction to the utility model claim.
As shown in Figure 1, in an embodiment of the present utility model, a kind of switch cubicle thermote, comprises measurement module 1, control module 2, pilot lamp 3 and alarm 4.
Wherein, measurement module comprises a current transformer, for the current value in sensing lead, and passes to control module by measuring the signal obtained.
Control module comprises AD conversion unit, MCU unit and light control unit.The signal of AD conversion unit received current mutual inductor, input MCU unit after conversion; MCU unit compares the current value of input and the size of load current value, and exports corresponding control signal to light control unit, and light control unit controls LED signal lamp and sends unlike signal.
Pilot lamp is colorful LED signal lamp, can send green, yellow, red trichromatism signal, and has extinguishing, continues to light, glimmer three kinds of signal frequencies.
In the present embodiment, during thermote work, when load current value is zero, controls pilot lamp and be shown as pure green; When load current equals load current value (saturated), control pilot lamp and be shown as pure red; When load current is between above-mentioned two values, controlling the Color pair of pilot lamp, to answer the size of load current value to do green, yellow, red gradual change display; When load current value is greater than load current value, control the flicker of pilot lamp redness.
Further, in order to make indicator structure compact and dependable performance, as shown in Figure 2, light control unit in the present embodiment comprises for providing the predetermined driving constant pressure source driving constant voltage, for the driving circuit that will the driving constant voltage of constant pressure source driven to be converted to the multiple drive currents driving described colorful LED signal lamp, and for compensating the temperature compensation unit causing drive current variations because of temperature variation.
Wherein, drive constant pressure source that predetermined driving constant voltage is supplied to driving circuit.Owing to driving constant voltage to be the even voltage irrelevant with load, so drive current can be regulated by changing resistor.
Driving circuit converts the driving constant voltage of driving constant pressure source to multiple drive currents for driving color LED.Comprise the yellow led drive current of the red LED drive current driving D1, the green LED drive current driving D2 and driving D3.
Temperature compensation unit comprises the first NTC themistor TH21 for compensating red LED drive current according to the change of temperature, and for the first linear compensating resistor R21 of the linearity that compensates red LED drive current; Compensate the second NTC themistor TH22 of green LED drive current, and for the second linear compensation resistance device R22 of the linearity that compensates green LED drive current; TH21 and R21 is in parallel, TH22 and R22 is in parallel.
Adopt foregoing circuit, owing to only used fixed resister and NTC thermistor, thus reduce cost, make indicator miniaturization of the present utility model, more convenient installation and use.
The explanation of above embodiment just understands method of the present utility model and core concept thereof for helping.Should be understood that; for those skilled in the art; under the prerequisite not departing from the utility model principle, can also carry out some improvement and modification to the utility model, these improve and modify and also fall in the protection domain of the utility model claim.
Claims (4)
1. a switch cubicle thermote, is characterized in that: comprise measurement module, control module, pilot lamp and alarm; Described measurement module comprises a current transformer, and described control module comprises AD conversion unit, MCU unit and light control unit, and described pilot lamp is colorful LED signal lamp; Described current transformer is used for the load current value of Real-time Collection switch cubicle, and measuring-signal is inputted described MCU unit through described AD conversion unit, described MCU unit is for the size of the current value and load current value that compare input, and exporting corresponding control signal to described light control unit, described light control unit controls according to described control signal the light that described LED signal lamp sends different color/frequency.
2. switch cubicle thermote as claimed in claim 1, it is characterized in that: described light control unit comprises for providing the predetermined driving constant pressure source driving constant voltage, for the driving constant voltage of described driving constant pressure source being converted to the driving circuit of the multiple drive currents driving described colorful LED signal lamp, and for compensating the temperature compensation unit causing described drive current variations because of temperature variation.
3. switch cubicle thermote as claimed in claim 2, is characterized in that: described drive current comprises red LED drive current, green LED drive current and yellow led drive current.
4. switch cubicle thermote as claimed in claim 3, is characterized in that: described temperature compensation unit comprises NTC thermistor and linear compensation resistance device.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520851777.9U CN205067589U (en) | 2015-10-30 | 2015-10-30 | Cubical switchboard thermote |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520851777.9U CN205067589U (en) | 2015-10-30 | 2015-10-30 | Cubical switchboard thermote |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN205067589U true CN205067589U (en) | 2016-03-02 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520851777.9U Active CN205067589U (en) | 2015-10-30 | 2015-10-30 | Cubical switchboard thermote |
Country Status (1)
| Country | Link |
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| CN (1) | CN205067589U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731631A (en) * | 2017-11-27 | 2018-02-23 | 中山路得斯空调有限公司 | A kind of air-break with operating current instruction |
| CN113056774A (en) * | 2018-11-29 | 2021-06-29 | 惠普发展公司，有限责任合伙企业 | Usage level based lighting adjustment for computing device enclosures |
-
2015
- 2015-10-30 CN CN201520851777.9U patent/CN205067589U/en active Active
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN107731631A (en) * | 2017-11-27 | 2018-02-23 | 中山路得斯空调有限公司 | A kind of air-break with operating current instruction |
| CN113056774A (en) * | 2018-11-29 | 2021-06-29 | 惠普发展公司，有限责任合伙企业 | Usage level based lighting adjustment for computing device enclosures |
| US11930577B2 (en) | 2018-11-29 | 2024-03-12 | Hewlett-Packard Development Company, L.P. | Usage-level based lighting adjustments to computing device housings |
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| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant |