CN203774753U - Three-phase busbar low-voltage intelligent measurement and control circuit structure - Google Patents
Three-phase busbar low-voltage intelligent measurement and control circuit structure Download PDFInfo
- Publication number
- CN203774753U CN203774753U CN201420047010.6U CN201420047010U CN203774753U CN 203774753 U CN203774753 U CN 203774753U CN 201420047010 U CN201420047010 U CN 201420047010U CN 203774753 U CN203774753 U CN 203774753U
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- circuit structure
- voltage intelligent
- constant current
- bus bar
- low
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Abstract
The utility model relate to a three-phase busbar low-voltage intelligent measurement and control circuit structure which comprises a reference module, a constant current source unit, an amplification circuit unit and a single-chip microcomputer. The reference module is used for supplying power to the three-phase busbar low-voltage intelligent measurement and control circuit structure. The constant current source unit supplies constant current to the three-phase busbar low-voltage intelligent measurement and control circuit structure. The amplification circuit unit supplies amplified current to the three-phase busbar low-voltage intelligent measurement and control circuit structure. The single chip is used for converting a signal of the three-phase busbar low-voltage intelligent measurement and control circuit structure into a three-phase busbar temperature signal value. The reference module is connected with the constant current source unit, the amplification circuit unit and the single-chip microcomputer. The constant current unit has a temperature signal input end. According to the three-phase busbar low-voltage intelligent measurement and control circuit structure, the temperature of a three-phase busbar is detected by the above-mentioned units and is displayed through the single-chip microcomputer. By presetting a busbar allowed highest operating temperature, after reaching the preset busbar allowed highest operating temperature, the circuit structure trips off the current loops, thereby fulfilling an aim of protecting the busbar and lines.
Description
Technical field
The utility model relates to a kind of three-phase bus bar low-voltage intelligent telemetry circuit structure, belongs to electron electric power technical field.
Background technology
Low-voltage intelligent telemetry circuit mainly completes electrical measurement, protection, control, the communication function of feeder assembly at present, but fail the temperature of three-phase bus bar to carry out effective monitoring and measuring, existing intelligent measuring and control device is owing to there is no measurement and the supervision of three-phase bus bar temperature, frequent becoming flexible due to busbar junction, cause the contact resistance of busbar junction to raise, thereby thereby while further causing large electric current to flow through, causing the temperature of three-phase bus bar sharply to raise causes rectifying and improving burning of switch cubicle; In addition, at present in order addressing the above problem, in switch cubicle, to install three-phase bus bar temperature survey additional and monitor product, causing the cost of switch cubicle to raise, causing whole system maintenance workload to increase simultaneously.
Utility model content
The utility model object is that a kind of three-phase bus bar low-voltage intelligent telemetry circuit structure that plays temperature detection and defencive function is provided in order to overcome the deficiencies in the prior art.
For achieving the above object, the technical solution adopted in the utility model is: a kind of three-phase bus bar low-voltage intelligent telemetry circuit structure, comprises base modules, constant current source unit, amplifier circuit unit, single-chip microcomputer; Described base modules is for powering to three-phase bus bar low-voltage intelligent telemetry circuit structure; Described constant current source unit provides constant current for three-phase bus bar low-voltage intelligent telemetry circuit structure; Described amplifier circuit unit provides amplified current for three-phase bus bar low-voltage intelligent telemetry circuit structure; Described single-chip microcomputer is for being converted into three-phase bus bar temperature signal value by the signal of three-phase bus bar low-voltage intelligent telemetry circuit structure; Described base modules and constant current source unit, amplifier circuit unit, single-chip microcomputer interconnect; Described constant current source unit is provided with temperature signal input.
Preferably, described base modules is 2.5V base modules.
Due to the utilization of technique scheme, the utility model compared with prior art has following advantages:
A kind of three-phase bus bar low-voltage intelligent telemetry circuit structure of the utility model scheme; by base modules, constant current source unit, amplifier circuit unit, single-chip microcomputer; detect the temperature of three-phase bus bar; by single-chip microcomputer, show simultaneously; the maximum operating temperature simultaneously allowing by default busbar; circuit structure allows after maximum temperature reaching default busbar, and tripping current circuit reaches the object of protection busbar and circuit.
Accompanying drawing explanation
Below in conjunction with accompanying drawing, technical solutions of the utility model are described further:
Accompanying drawing 1 is the schematic diagram of a kind of three-phase bus bar low-voltage intelligent telemetry circuit structure of the present utility model;
Accompanying drawing 2 is the base modules enlarged drawing of a kind of three-phase bus bar low-voltage intelligent telemetry circuit structure of the present utility model;
Accompanying drawing 3 is the constant current source unit enlarged drawing of a kind of three-phase bus bar low-voltage intelligent telemetry circuit structure of the present utility model;
Accompanying drawing 4 is the amplifier circuit unit enlarged drawing of a kind of three-phase bus bar low-voltage intelligent telemetry circuit structure of the present utility model;
Accompanying drawing 5 is the single-chip microcomputer enlarged drawing of a kind of three-phase bus bar low-voltage intelligent telemetry circuit structure of the present utility model;
Wherein: 1, base modules; 2, constant current source unit; 3, amplifier circuit unit; 4, single-chip microcomputer.
Embodiment
Below in conjunction with drawings and the specific embodiments, the utility model is described in further detail.
Accompanying drawing 1-5 is a kind of three-phase bus bar low-voltage intelligent telemetry circuit structure described in the utility model, comprises base modules 1, constant current source unit 2, amplifier circuit unit 3, single-chip microcomputer 4; Described base modules 1 is for giving the power supply of three-phase bus bar low-voltage intelligent telemetry circuit structure; Described constant current source unit 2 provides constant current for three-phase bus bar low-voltage intelligent telemetry circuit structure; Described amplifier circuit unit 3 provides amplified current for three-phase bus bar low-voltage intelligent telemetry circuit structure; Described single-chip microcomputer 4 is for being converted into three-phase bus bar temperature signal value by the signal of three-phase bus bar low-voltage intelligent telemetry circuit structure; Described base modules 1 interconnects with constant current source unit 2, amplifier circuit unit 3, single-chip microcomputer 4; Described constant current source unit 2 is provided with temperature signal input; Described base modules 1 is 2.5V base modules.
When three-phase bus bar low-voltage intelligent telemetry circuit structure is used, single-chip microcomputer 4 is by the AD sampling module of inner MCU (central microprocessor), the signal of collecting temperature signal input part three-phase bus bar temperature, then by calculating three-phase bus bar temperature signal value, single-chip microcomputer 4 man-machine interfaces mainly complete the demonstration of three-phase bus bar temperature, the setting of busbar overtemperature temperature and the demonstration after overtemperature and indication, the DO output of single-chip microcomputer 4 is mainly controlled (object of DO output is relay output) by MCU, when MCU detects after the overtemperature temperature of controller internal temperature over man-machine interface setting, MCU sets high the mouth line of GPIO, the actuating of relay, wherein a road is to trip signal of the switchgear in switch cubicle, by switch, from co-bit displacement, divide position by force, allow switch in open position, thereby reach the large current signal in cut-off switch cabinet, another road output connects indicator light or buzzer is used as reporting to the police, single-chip microcomputer 4 communication interfaces mainly complete the data interconnection between multiple devices, are concentrated and are shown simultaneously by running background software, owing to having set up the circuit of measuring three-phase bus bar temperature in low-voltage intelligent telemetry circuit, simultaneously owing to having set the maximum operating temperature of busbar, can effectively avoid busbar because the busbar heating burnout problem causing is delivered in connection, and three-phase bus bar temperature protection is in the inner realization of low-voltage intelligent measure and control device, greatly reduces and increases the cost that other equipment are realized, and has reduced the operation expense of switch cubicle simultaneously.
Below be only concrete exemplary applications of the present utility model, protection range of the present utility model is not constituted any limitation.All employing equivalents or equivalence are replaced and the technical scheme of formation, within all dropping on the utility model rights protection scope.
Claims (2)
1. a three-phase bus bar low-voltage intelligent telemetry circuit structure, is characterized in that: comprise base modules, constant current source unit, amplifier circuit unit, single-chip microcomputer; Described base modules is for powering to three-phase bus bar low-voltage intelligent telemetry circuit structure; Described constant current source unit provides constant current for three-phase bus bar low-voltage intelligent telemetry circuit structure; Described amplifier circuit unit provides amplified current for three-phase bus bar low-voltage intelligent telemetry circuit structure; Described single-chip microcomputer is for being converted into three-phase bus bar temperature signal value by the signal of three-phase bus bar low-voltage intelligent telemetry circuit structure; Described base modules and constant current source unit, amplifier circuit unit, single-chip microcomputer interconnect; Described constant current source unit is provided with temperature signal input.
2. a kind of three-phase bus bar low-voltage intelligent telemetry circuit structure as claimed in claim 1, is characterized in that: described base modules is 2.5V base modules.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420047010.6U CN203774753U (en) | 2014-01-24 | 2014-01-24 | Three-phase busbar low-voltage intelligent measurement and control circuit structure |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201420047010.6U CN203774753U (en) | 2014-01-24 | 2014-01-24 | Three-phase busbar low-voltage intelligent measurement and control circuit structure |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN203774753U true CN203774753U (en) | 2014-08-13 |
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201420047010.6U Expired - Fee Related CN203774753U (en) | 2014-01-24 | 2014-01-24 | Three-phase busbar low-voltage intelligent measurement and control circuit structure |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN203774753U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762550A (en) * | 2014-01-24 | 2014-04-30 | 苏州融达兴电气有限公司 | Intelligent low-voltage measuring and controlling circuit structure of three-phase busbar |
| CN110402504A (en) * | 2017-03-15 | 2019-11-01 | 矢崎总业株式会社 | Busbar module and battery pack |
-
2014
- 2014-01-24 CN CN201420047010.6U patent/CN203774753U/en not_active Expired - Fee Related
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN103762550A (en) * | 2014-01-24 | 2014-04-30 | 苏州融达兴电气有限公司 | Intelligent low-voltage measuring and controlling circuit structure of three-phase busbar |
| CN110402504A (en) * | 2017-03-15 | 2019-11-01 | 矢崎总业株式会社 | Busbar module and battery pack |
| CN110402504B (en) * | 2017-03-15 | 2021-09-28 | 矢崎总业株式会社 | Bus bar module and battery pack |
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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: 20140813 Termination date: 20190124 |