CN203350347U - Three-phase electrification indicator of switch cabinet - Google Patents
Three-phase electrification indicator of switch cabinet Download PDFInfo
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- CN203350347U CN203350347U CN 201320481102 CN201320481102U CN203350347U CN 203350347 U CN203350347 U CN 203350347U CN 201320481102 CN201320481102 CN 201320481102 CN 201320481102 U CN201320481102 U CN 201320481102U CN 203350347 U CN203350347 U CN 203350347U
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Abstract
The utility model relates to a three-phase electrification indicator of a switch cabinet. The indicator comprises six units which are respectively a sensor voltage sampling input unit, an input protection unit, a rectifying unit, a voltage processing unit, a voltage-stabilizing circuit unit and a display circuit unit, wherein the sensor voltage sampling input unit is connected to the rectifying unit through the input protection unit, so as to convert an AC voltage into a DC voltage; the rectifying unit converts the DC voltage into voltage and current parameters suitable for power supply of the indicating lamp through the voltage processing unit and the voltage-stabilizing circuit unit; and the voltage processing unit is connected with the display unit for displaying the electrified condition of the unit. The indicator has higher safety performance, better ensures the safety of the operators, does not need additional power conversion equipment, and reduces the cost.
Description
Technical field
A kind of switch cubicle of the utility model, relate in particular to a kind of three-phase potential indicator of switch cubicle.
Background technology
The three-phase potential indicator is a kind of being directly installed on indoor electric equipment, intuitively demonstrates electrical equipment whether with the indicative safety feature of working voltage.When equipment, during with working voltage, this indicator window flashes, and warning people high-tension apparatus is charged, during without electricity without indicating.The characteristics such as it has that reliability is strong, economy, use are extensive.
At present, the three-phase potential indicator on switch cubicle on market needs external power supply equipment to be indicated the three-phase electricity of cabinet.The method of this external power supply equipment has not only increased cost, also operating personnel's safety problem is brought to certain hidden danger.
The utility model content
The purpose of this utility model is in order to overcome the deficiencies in the prior art, and a kind of three-phase potential indicator of switch cubicle is provided, and this indicator, without external power supply equipment, is got the induced voltage of sensor, and after it is processed as the power supply of indicator.
The utility model is to be achieved through the following technical solutions: a kind of three-phase potential indicator of switch cubicle, this indicator comprises six unit, respectively sensor voltage sampling input block, input protection unit, rectification unit, voltage processing unit, mu balanced circuit unit, display circuit unit, described sensor voltage sampling input block is connected to rectification unit through the input protection unit, and its alternating voltage is become to DC voltage; Described rectification unit, by voltage processing unit and mu balanced circuit unit, becomes DC voltage the voltage and current parameter that is applicable to the pilot lamp power supply; Described voltage processing unit connects the display circuit unit, and its charged situation is shown.
Compared with prior art, the beneficial effects of the utility model are:
1, security performance is higher, in any case if cabinet high-tension electricity is arranged, this indicator all can indicate, larger assurance operating personnel's safety;
2, because instructed voltage, from sensor voltage, does not need extra power conversion device like this, reduced cost.
The accompanying drawing explanation
Fig. 1 is schematic diagram of the present utility model.
Embodiment
In order to make the purpose of this utility model, technical scheme and advantage clearer, below in conjunction with drawings and Examples, the utility model is further elaborated.Should be appreciated that specific embodiment described herein is only in order to explain the utility model, and be not used in restriction the utility model.
Refer to Fig. 1, Fig. 1 is schematic diagram of the present utility model.
The three-phase potential indicator of described a kind of switch cubicle, this indicator comprises six unit, respectively sensor voltage sampling input block 1, input protection unit 2, rectification unit 3, voltage processing unit 4, mu balanced circuit unit 5, display circuit unit 6, described sensor voltage sampling input block 1 is connected to rectification unit 3 through input protection unit 2, its alternating voltage is become to DC voltage, in order to light power supply is provided for pilot lamp; Described rectification unit 3, by voltage processing unit 4 and mu balanced circuit unit 5, becomes DC voltage the voltage and current parameter that is applicable to the pilot lamp power supply; Described voltage processing unit 4 connects display circuit unit 6, and its charged situation is shown.
This indicator is indicated the charged situation of three-phase, and the charged situation of the three-phase of indicator cock cabinet, be convenient to user's operation and analyze exactly.If A is mutually charged, after processing by series of voltage, A phase pilot lamp is bright, and same, if B is mutually charged, B phase pilot lamp is bright, if C is mutually charged, C phase pilot lamp is bright.Security performance is higher on the one hand for this indicator, as long as cabinet has high-tension electricity, all can indicate in any case, larger assurance operating personnel's safety, because instructed voltage, from sensor voltage, does not need extra power conversion device like this, reduced cost on the other hand.
The foregoing is only preferred embodiment of the present utility model; not in order to limit the utility model; all any modifications of doing within spirit of the present utility model and principle, be equal to and replace and improvement etc., within all should being included in protection domain of the present utility model.
Claims (1)
1. the three-phase potential indicator of a switch cubicle, it is characterized in that, this indicator comprises six unit, respectively sensor voltage sampling input block (1), input protection unit (2), rectification unit (3), voltage processing unit (4), mu balanced circuit unit (5), display circuit unit (6), described sensor voltage sampling input block (1) is connected to rectification unit (3) through input protection unit (2), and its alternating voltage is become to DC voltage; Described rectification unit (3), by voltage processing unit (4) and mu balanced circuit unit (5), becomes DC voltage the voltage and current parameter that is applicable to the pilot lamp power supply; Described voltage processing unit (4) connects display circuit unit (6), and its charged situation is shown.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320481102 CN203350347U (en) | 2013-08-08 | 2013-08-08 | Three-phase electrification indicator of switch cabinet |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN 201320481102 CN203350347U (en) | 2013-08-08 | 2013-08-08 | Three-phase electrification indicator of switch cabinet |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203350347U true CN203350347U (en) | 2013-12-18 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN 201320481102 Expired - Fee Related CN203350347U (en) | 2013-08-08 | 2013-08-08 | Three-phase electrification indicator of switch cabinet |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203350347U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104635021A (en) * | 2015-02-06 | 2015-05-20 | 四川蓝讯宝迩电子科技有限公司 | Charge indicator for three-phase electrical system |
| CN104698259A (en) * | 2015-02-06 | 2015-06-10 | 四川蓝讯宝迩电子科技有限公司 | Electrified detection circuit suitable for three-phase electrical system |
-
2013
- 2013-08-08 CN CN 201320481102 patent/CN203350347U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104635021A (en) * | 2015-02-06 | 2015-05-20 | 四川蓝讯宝迩电子科技有限公司 | Charge indicator for three-phase electrical system |
| CN104698259A (en) * | 2015-02-06 | 2015-06-10 | 四川蓝讯宝迩电子科技有限公司 | Electrified detection circuit suitable for three-phase electrical system |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| 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: 20131218 Termination date: 20190808 |