CN202583261U - Current sensor used for photovoltaic conflux monitoring - Google Patents
Current sensor used for photovoltaic conflux monitoring Download PDFInfo
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- CN202583261U CN202583261U CN2012202408007U CN201220240800U CN202583261U CN 202583261 U CN202583261 U CN 202583261U CN 2012202408007 U CN2012202408007 U CN 2012202408007U CN 201220240800 U CN201220240800 U CN 201220240800U CN 202583261 U CN202583261 U CN 202583261U
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Abstract
The utility model provides a current sensor used for photovoltaic conflux monitoring. The current sensor used for the photovoltaic conflux monitoring adopts a current magnitude sensor measuring all current channels in a photovoltaic combiner box. The current sensor used for the photovoltaic conflux monitoring supports photovoltaic current measurement of the four channels. A housing of the current sensor used for the photovoltaic conflux monitoring is provided with four through holes. The diameters and spaces of the through holes, and distances between the through holes and side edges of the housing are determined specially, thereby making the current sensor used for the photovoltaic conflux monitoring suitable for applying to the photovoltaic combiner box. The housing is provided with one or two socket pieces connected with the external. The current sensor used for the photovoltaic conflux monitoring provided by the utility model has an advantage that the measurement of the four current channels is supported at the same time in the housing. The four current channels can share a signal processing circuit, thereby reducing the cost. The current sensor used for the photovoltaic conflux monitoring provided by the utility model has another advantage that the structure of the current sensor used for the photovoltaic conflux monitoring is designed specially for the monitoring of photovoltaic conflux, thereby facilitating the installation and use of the current sensor used for the photovoltaic conflux monitoring in the combiner box.
Description
Technical field
The field of photovoltaic power generation that the invention belongs to is applied to photovoltaic and confluxes in box, header box, the cabinet that confluxes etc., is used for measuring the photovoltaic generation current.
Background technology
Along with the development of photovoltaic generation, the reliability of photovoltaic plant, monitoring property have been proposed increasingly high requirement, wherein the current monitoring that confluxes of photovoltaic is important ingredient.So dispose photovoltaic monitor that confluxes at photovoltaic box, photovoltaic header box, photovoltaic (these equipment of hereinafter general designation are header box) needs such as cabinet that conflux that conflux.The conflux major function of monitor of photovoltaic is the photovoltaic magnitude of current of each passage of monitoring, shows the current value of each passage is local, and communicates by letter with host computer through remote communication interface.For safety and the reliability that improves system, the non-contact measurement mode of hall principle is adopted in the conflux current measurement of monitor of photovoltaic more.Current to be used for the conflux Hall element of monitoring of photovoltaic all be the general Hall current sensor that adopts, and is not to monitor custom-made for photovoltaic confluxes specially.Shortcomings such as they are used for the monitoring of photovoltaic header box has cost high, and structure is dumb.
Summary of the invention
The present invention proposes a kind of photovoltaic monitoring current sensor that confluxes, the use dirigibility that has improved product has made things convenient for the place and route in the header box, and has reduced system cost.
The technical scheme that the present invention adopts is (with reference to figure 1): the photovoltaic monitoring current sensor (hereinafter referred is the present invention) that confluxes is supported the current measurement of four current channels; Shell shape characteristic of the present invention is; Four through holes that are used for passing through the photovoltaic current lead (Fig. 1 14,15,16,17) are arranged on the shell (11 among Fig. 1); The diameter of each through hole is greater than 5mm; Center distance between the adjacent through-holes is 14mm～22mm, the through hole center of both sides (14 among Fig. 1,17) apart from the corresponding side distance of shell less than 11mm; Have one or two to be used for and the outside connector that is connected (Fig. 1 12,13) on the shell (11 among Fig. 1), they be used for to the power supply of this sensor with communicate by letter.
The invention has the beneficial effects as follows: the shared shell of the current sensor of four passages of the present invention, thereby inside can be shared a cover treatment circuit lowered the cost of every passage; It monitors design for photovoltaic confluxes specially in addition, has better adapted to the structure of photovoltaic header box, has made things convenient for the wiring of photovoltaic header box, has improved the dirigibility of using.
Description of drawings
This instructions has an accompanying drawing:
Fig. 1, photovoltaic of the present invention monitoring current sensor that confluxes, among the figure, 11 is sensor outer housing, and 12 and 13 are connected outside connector for being used to, and 14,15,16,17 are four passes through the through hole that the photovoltaic current lead is used.
Embodiment
Photovoltaic confluxes has four through holes on the monitoring current sensor, and these four through holes are the leads that are used for through the photovoltaic electric current.There are four magnet rings of opening the slit in portion in the enclosure, and magnet ring of cover is equipped with Hall element on each through hole in the cracking of each magnet ring.When electric current flow through from the lead that passes through through hole, the magnetic field of Hall element changed, and measured the size in magnetic field through Hall element and had just learnt the magnitude of current of each passage.The diameter of through hole has guaranteed that greater than 5mm current most of photovoltaic group crosstalk current wire can adorn from the centre.It is suitable that the center distance of adjacent through-holes is set at the spacing that has guaranteed between 14mm～22mm between the photovoltaic current lead, corresponding with width such as the commonly used Fuse box of industry, connection terminals, made things convenient for the use of the present invention in the photovoltaic header box.The corresponding side of the through hole centre distance shell of both sides distance is less than 11mm, guaranteed that a plurality of photovoltaics monitoring current sensor that confluxes expands side by side, supports hyperchannels more such as 8,12,16.The power supply of this sensor be to realize PERCOM peripheral communication through the connector on the shell.
Claims (5)
1. the photovoltaic monitoring current sensor that confluxes is used for conflux box, header box, the cabinet that confluxes of photovoltaic and realizes the measurement of photovoltaic electric current it is characterized in that supporting the current measurement of four current channels that four through holes that are used to pass through the photovoltaic current lead are promptly arranged on its shell.
2. the photovoltaic according to claim 1 monitoring current sensor that confluxes is characterized in that each through-hole diameter is greater than 5mm in said four through holes.
3. the photovoltaic according to claim 1 monitoring current sensor that confluxes, the center distance that it is characterized in that adjacent through-holes in said four through holes is between 14mm and 22mm.
4. the photovoltaic according to claim 1 monitoring current sensor that confluxes, the respective side edge distance that it is characterized in that the through hole centre distance shell of both sides in said four through holes is less than 11mm.
5. the photovoltaic according to claim 1 monitoring current sensor that confluxes is characterized in that it has one or two to be used for and the outside connector that is connected.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202408007U CN202583261U (en) | 2012-05-15 | 2012-05-15 | Current sensor used for photovoltaic conflux monitoring |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN2012202408007U CN202583261U (en) | 2012-05-15 | 2012-05-15 | Current sensor used for photovoltaic conflux monitoring |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN202583261U true CN202583261U (en) | 2012-12-05 |
Family
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Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN2012202408007U Expired - Lifetime CN202583261U (en) | 2012-05-15 | 2012-05-15 | Current sensor used for photovoltaic conflux monitoring |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN202583261U (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN104597309A (en) * | 2015-01-27 | 2015-05-06 | 张发宇 | Multi-parallel-connection current sensor |
| CN105092949A (en) * | 2014-05-19 | 2015-11-25 | 北京人民电器厂有限公司 | Plastic shell type current acquisition module for photovoltaic combiner box |
-
2012
- 2012-05-15 CN CN2012202408007U patent/CN202583261U/en not_active Expired - Lifetime
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN105092949A (en) * | 2014-05-19 | 2015-11-25 | 北京人民电器厂有限公司 | Plastic shell type current acquisition module for photovoltaic combiner box |
| CN104597309A (en) * | 2015-01-27 | 2015-05-06 | 张发宇 | Multi-parallel-connection current sensor |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| C14 | Grant of patent or utility model | ||
| GR01 | Patent grant | ||
| C56 | Change in the name or address of the patentee | ||
| CP02 | Change in the address of a patent holder |
Address after: 201114, Shanghai, Minhang District, Pujiang, Zhenjiang Road, No. 999, 5 odd floor Park, 1 floor Patentee after: Fengzhi (Shanghai) New Energy Technology Co., Ltd. Address before: 201112, room 1188, building 7, Urarie Chise business garden, Union Road, Shanghai, Minhang District, Patentee before: Fengzhi (Shanghai) New Energy Technology Co., Ltd. |
|
| DD01 | Delivery of document by public notice |
Addressee: Fengzhi (Shanghai) New Energy Technology Co., Ltd. Document name: Notification of Passing Examination on Formalities |
|
| CX01 | Expiry of patent term |
Granted publication date: 20121205 |
|
| CX01 | Expiry of patent term |