CN204575234U - A kind of Portable low voltage switch drawout cubicle plug-in unit contact testing diagnosis equipment - Google Patents
A kind of Portable low voltage switch drawout cubicle plug-in unit contact testing diagnosis equipment Download PDFInfo
- Publication number
- CN204575234U CN204575234U CN201520231605.1U CN201520231605U CN204575234U CN 204575234 U CN204575234 U CN 204575234U CN 201520231605 U CN201520231605 U CN 201520231605U CN 204575234 U CN204575234 U CN 204575234U
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- clamping force
- signal
- conditioning circuit
- display
- contact
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Abstract
The utility model discloses a kind of Portable low voltage switch drawout cubicle plug-in unit contact testing diagnosis equipment, can measure and show the clamping force of this contact.Comprise sensor, signal conditioning circuit, microprocessor and display; Described sensor is used for measuring described contact clamping force and exports the voltage signal corresponding to its size; Described signal conditioning circuit amplifies this voltage signal and is converted to digital signal; Described microprocessor carries out data processing to this digital signal, is scaled clamping force value; Described display is used for showing this clamping force value; Described sensor comprises housing, T-shaped composite beam is placed in this housing hollow position, and this composite beam is the wide symmetrical beam of uniform strength structures in middle narrow two ends, by the T-shaped beam-ends head welding of two panels, the each each symmetry in top and bottom pastes pair of metal foil gauge, and these four foil gauges connect into electric bridge.
Description
Technical field
The utility model relates to contact pressure measurement mechanism, particularly relates to low tension switch drawout cubicle connector moving contact clamping force measurement mechanism.
Background technology
The industry such as oil, chemical industry due to drawer of low-voltage switch cabinet formula plug-in unit contact (the U-shaped fork of cable) distortion, loosen and cause power failure, device parking accident happens occasionally, and is the difficult problem always perplexing electric power maintenance personnel.At present, the key industry such as oil, chemical industry loosens because switch card contact is aging the electric power accident rate caused in order to reduce, and usually adopt periodic replacement to solve this difficult problem, but this way cost is higher, causes larger economic pressures to relevant industries.
Utility model content
Technical problem to be solved in the utility model is to provide a kind of Portable low voltage switch drawout cubicle plug-in unit contact testing diagnosis equipment, can measure and show the clamping force of this contact.
For solving the problems of the technologies described above, the technical solution of the utility model is: comprise sensor, signal conditioning circuit, microprocessor and display; Described sensor is used for measuring described contact clamping force and exports the voltage signal corresponding to its size; Described signal conditioning circuit amplifies this voltage signal and is converted to digital signal; Described microprocessor carries out data processing to this digital signal, is scaled clamping force value; Described display is used for showing this clamping force value; Described sensor comprises housing, T-shaped composite beam is placed in this housing hollow position, and this composite beam is the wide symmetrical beam of uniform strength structures in middle narrow two ends, by the T-shaped beam-ends head welding of two panels, the each each symmetry in top and bottom pastes pair of metal foil gauge, and these four foil gauges connect into electric bridge.
The beneficial effects of the utility model are, composite structure equi intensity cantilever adds the intensity of semi-girder, reduces thickness, possess the stress distribution effect of diplopore parallel girder force snesor simultaneously, and be applicable to the measurement of small-range power, measuring accuracy is more than 0.5%; Meanwhile, owing to being equipped with microprocessor, be convenient to system performance expansion; Such as, for adapting to different cabinet types, the conversion that range is set is needed; Whether qualified for determining the clamping force of contact, need the bound setting acceptability limit.By utilizing this device to carry out maintenance, drawer of low-voltage switch cabinet plug-in unit contact slap heating short trouble can be reduced by 80%.
Accompanying drawing explanation
Fig. 1 is the structured flowchart of a Portable low voltage switch drawout cubicle plug-in unit contact testing diagnosis equipment; Fig. 2 is the structural representation of sensor.
In figure: 1-goes between; 2-housing; 3-foil gauge; 4-T type composite beam; The upper dynamometry dish of 5-; Dynamometry dish under 6-; 11-sensor; 12-signal conditioning circuit; 13-microprocessor; 14-display.
Embodiment
As shown in Figure 1 and Figure 2, Portable low voltage switch drawout cubicle plug-in unit contact testing diagnosis equipment comprises sensor 11, signal conditioning circuit 12, microprocessor 13 and display 14; Sensor 11 is used for measuring described contact clamping force and exports the voltage signal corresponding to its size; Signal conditioning circuit 12 amplifies this voltage signal and is converted to digital signal; Microprocessor 13 carries out data processing to this digital signal, is scaled clamping force value; Display 14 is used for showing this clamping force value; Sensor 11 comprises housing 2, T-shaped composite beam 4 is placed in housing 2 hollow part, and T-shaped composite beam 4 is the wide symmetrical beam of uniform strength structures in middle narrow two ends, by the T-shaped beam-ends head welding of two panels, the each each symmetry in top and bottom pastes pair of metal foil gauge 3, and these four foil gauges 3 connect into electric bridge.
During measurement, one time plug-in unit contact is stuck between dynamometry dish 5 and lower dynamometry dish 6, sensor 11 is experienced this contact force and is converted into electric signal, signal conditioning circuit 12 amplifies this electric signal and calibrates, convert thereof into digital signal, this digital signal is scaled clamping force value and send display 14 to be shown by microprocessor 13.This device sets the bound of acceptability limit according to different cabinet types, to determine that whether contact clamping force is qualified.Qualified, hummer yowls 0.5 second and OK green light is long brightly passes through, and in display 14 main screen row display measurement value.Rapid short ring three sound of defective then hummer and OUT red light long bright warning, also row display measurement value in display 14 main screen.The utility model is applicable to cabinet type ABBMNS3.0, the Siemens 8PT of a plug-in unit, the detection of the contact clamping force of Great Wall GCK, analysis, can certainly be used for the detection of other drawer of low-voltage switch cabinet formulas plug-in unit contact (the U-shaped fork of cable) clamping force, analysis.The utility model can meet the needs that key industry electric power safety ensures, prevents the power outage because low-tension switch cabinet plug-in unit contact slap causes, enterprise benefit.
Claims (1)
1. Portable low voltage switch drawout cubicle plug-in unit contact testing diagnosis equipment, comprises sensor, signal conditioning circuit, microprocessor and display; Described sensor is used for measuring described contact clamping force and exports the voltage signal corresponding to its size; Described signal conditioning circuit amplifies this voltage signal and is converted to digital signal; Described microprocessor carries out data processing to this digital signal, is scaled clamping force value; Described display is used for showing this clamping force value; It is characterized in that, described sensor comprises housing, T-shaped composite beam is placed in this housing hollow position, this composite beam is the wide symmetrical beam of uniform strength structures in middle narrow two ends, by the T-shaped beam-ends head welding of two panels, the each each symmetry in top and bottom pastes pair of metal foil gauge, and these four foil gauges connect into electric bridge.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520231605.1U CN204575234U (en) | 2015-04-09 | 2015-04-09 | A kind of Portable low voltage switch drawout cubicle plug-in unit contact testing diagnosis equipment |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201520231605.1U CN204575234U (en) | 2015-04-09 | 2015-04-09 | A kind of Portable low voltage switch drawout cubicle plug-in unit contact testing diagnosis equipment |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN204575234U true CN204575234U (en) | 2015-08-19 |
Family
ID=53867853
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201520231605.1U Expired - Fee Related CN204575234U (en) | 2015-04-09 | 2015-04-09 | A kind of Portable low voltage switch drawout cubicle plug-in unit contact testing diagnosis equipment |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN204575234U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567618A (en) * | 2019-07-29 | 2019-12-13 | 深圳供电局有限公司 | Contact engagement force detection device and platform |
| CN111289150A (en) * | 2019-12-26 | 2020-06-16 | 方圆检测认证有限公司 | Pressure detection device for low-voltage cabinet shell |
-
2015
- 2015-04-09 CN CN201520231605.1U patent/CN204575234U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110567618A (en) * | 2019-07-29 | 2019-12-13 | 深圳供电局有限公司 | Contact engagement force detection device and platform |
| CN110567618B (en) * | 2019-07-29 | 2021-08-24 | 深圳供电局有限公司 | Contact engagement force detection device and platform |
| CN111289150A (en) * | 2019-12-26 | 2020-06-16 | 方圆检测认证有限公司 | Pressure detection device for low-voltage cabinet shell |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C41 | Transfer of patent application or patent right or utility model | ||
| CB03 | Change of inventor or designer information |
Inventor after: Wang Lin Inventor after: Wang Qunfeng Inventor before: Fu Ying |
|
| COR | Change of bibliographic data | ||
| TR01 | Transfer of patent right |
Effective date of registration: 20160122 Address after: 730060 Gansu province Xigu District of Lanzhou city Gulang Road No. 19 Patentee after: Lanzhou Petrochemical Branch of PetroChina Company Limited Address before: 741000 Gansu province Tianshui Qinzhou District of Xinhua Road Huayuan Lantian P.O. Box 14 Patentee before: Great Wall, sky and water power instrument equipment Ltd |
|
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20150819 Termination date: 20170409 |
|
| CF01 | Termination of patent right due to non-payment of annual fee |