CN104597309A - Multi-parallel-connection current sensor - Google Patents
Multi-parallel-connection current sensor Download PDFInfo
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- CN104597309A CN104597309A CN201510039000.7A CN201510039000A CN104597309A CN 104597309 A CN104597309 A CN 104597309A CN 201510039000 A CN201510039000 A CN 201510039000A CN 104597309 A CN104597309 A CN 104597309A
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- current sensor
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Abstract
The invention discloses a multi-parallel-connection current sensor. The multi-parallel-connection current sensor comprises a sensor main body, accommodation space which is fixedly connected with the main body and used for accommodating a detection unit; the main body is provided with at least one through hole which can penetrate bilateral sides of the main body and is for an electric wire to penetrate. According to the technical scheme, the sensor is designed to be in a common twelve-line, sixteen-line or twenty-four-line multi-parallel-connection mode and can be assembled to be the multi-parallel-connection current sensor, applications are flexible, besides, the sensor is attractive in appearance, disassembling and assembling are convenient, wasting is avoided, and production costs are greatly reduced.
Description
Technical field
The present invention relates to multi-joint dress current sensor field, be specifically related to a kind of multi-joint dress current sensor.
Background technology
In recent years, domestic and international photovoltaic combiner box field presents following characteristics:
1, enormous amount.The domestic annual newly-increased nearly 10GW of photovoltaic installed capacity, the demand of photovoltaic combiner box about about 140,000 ~ 200,000;
2, intelligent.For the needs of photovoltaic plant operation management, photovoltaic combiner box is tending towards intelligent gradually, requires that header box can detect the current value of each road input, and testing result is uploaded for operation personnel's reference;
3, diversified in specifications.By the restriction of the practice of construction conditions such as topography and geomorphology, the input circuit number of each photovoltaic combiner box is often different, be input to from 6 tunnels 16 tunnels input so that 20 tunnels input different, abroad even occurred 32 tunnels input header box.
In traditional photovoltaic combiner box input electric cur-rent measure technology, multiple sensor is welded on one piece of circuit board, makes the current detection module that amount detection is determined.Such as 12 roads or 16 tunnels etc.But along with the development of photovoltaic industry, the current detection module technology that this amount detection is determined shows some shortcomings gradually:
1. be unfavorable for expansion.When the input circuit number of header box is greater than the maximum measure loop number of module, needs the module that exploitation and composition is new, thus produce the input of huge manpower, material resources and financial resources, need to expend the long time simultaneously;
2. when the quantity detected when actual needs is less than the maximum amount detection of module, unnecessary sensor use less than, also cannot pull down, produce waste;
If 3. develop the detection module of different measure loop quantity respectively in order to the header box of satisfied different input circuit quantity, not only cost of development is comparatively large, and creates the product of many different sizes, is unfavorable for the management of producing.
Summary of the invention
In view of the requirement of input circuit current detecting in the header box product of different input circuit quantity, the present invention proposes flexible, a reliable solution.
A kind of multi-joint dress current sensor, comprising: sensor main body;
Be fixedly connected with aforementioned body and accommodation space for holding detecting unit;
Aforementioned body has at least one and run through these main body both sides and the through hole that passes of supply lines.
Preferably, described detecting unit is a circuit board.
Preferably, the pitch-row between described adjacent through-holes is 18 ± 1mm.
Preferably, this main body lower end is also provided with at least one holder.
Preferably, also comprise for can the connected structure of grafting combination mutually between any two sensors, described connected structure comprises a male and a female, is connected between two sensors by the plug of male and female.
Preferably, the signal that described sensor exports is analog quantity, switching value or digital quantity.
In the inventive solutions, sensor design becomes multi-joint die-filling formula, the multi-joint dress current sensor that 12 tunnels, 16 roads or 24 tunnels etc. are conventional can be assembled into according to the actual needs, apply more flexible, in addition, this sensor good looking appearance, dismantles and installs more convenient, can not waste be caused, greatly reduce production cost.
Accompanying drawing explanation
In order to be illustrated more clearly in the technical scheme of the embodiment of the present invention, below the accompanying drawing used required in describing embodiment is briefly described.
Fig. 1 is the structural representation in a kind of multi-joint one of them direction of dress current sensor disclosed in the embodiment of the present invention;
Fig. 2 is the structural representation in a kind of multi-joint another direction of dress current sensor disclosed in the embodiment of the present invention;
Fig. 3 is the functional block diagram of a kind of multi-joint dress current sensor disclosed in the embodiment of the present invention.
Numeral in figure:
1, main body 2, electric wire 3, through hole 4, holder 5, male 6, female.
Embodiment
Below in conjunction with the accompanying drawing in the embodiment of the present invention, the technical scheme in the embodiment of the present invention is clearly and completely described.
Shown in Fig. 1, the enforcement principle of the technical program: the Main Function of the sensor is used for the detection of electric current, according to Hall effect: when one block of alive metal or wafer are vertically placed in magnetic field, the two ends of thin slice will produce potential difference (PD), and this phenomenon is just called Hall effect.According to above-mentioned principle, when electric wire 2 is through sensor main body 1, because energising produces magnetic field, electric current, by forming induced potential, by the faradic power of the effect of detecting unit and stability, thus makes monitoring to the duty of the output terminal of electric current.
As shown in Figures 1 to 3, a kind of multi-joint dress current sensor, comprises main body 1, main body 1 has at least one through hole 3, through hole 3 number in the present embodiment is four, and through hole 3 through main body 1 both sides, for passing through of electric wire 2, electric current in electric wire 2 by time produce electromotive force, detecting unit, namely circuit board can export electric signal according to the change of electromotive force, and then is transferred to terminal, end device in the present embodiment is header box
The pitch-row of described through hole 3 is 18mm, and error is positive and negative 1mm;
In addition, for the ease of installing, be also provided with at least one holder 4 below this main body 1, the number of the holder 4 in the present embodiment is two.
For the ease of being connected of any two sensors, also comprise between any two sensors can mutually grafting combination connected structure, described connected structure is comprised between a male 5 and a female 6, two sensors and being connected with female 6 plug by male 5.
In addition, the signal that sensor exports is analog quantity, switching value or digital quantity.
In the present embodiment, the effect of main body 1 is passing through of carrying electric wire 2, and utilize through hole 3 to pass through to make electric wire 2 further, due to the inductive action between electric wire 2, therefore pitch-row is set to this, the position relationship of accommodation space and main body 1 does not have particular requirement, can in any side of main body 1, because according to Hall effect, detecting unit is the potential change of energy induction current by producing all, in the figure that the present embodiment provides, detecting unit is positioned at the lower end of main body 1, one-body molded with main body 1, detecting unit i.e. circuit board are placed in accommodation space, do not mark in figure,
During concrete enforcement, multi-joint dress current sensor is installed in header box, to it detects before confluxing after the electric current of photovoltaic panel enters header box by electric wire 2.Different according to the number of solar panel, the way of sensor is also different, present stage commonly uses Wei 12 tunnel, 16 roads or 24 tunnels, therefore visible, in this programme, the number of through hole 3 can be transformed into 12 further, 16 or 24, also three four multi packs can be assembled into No. 12 sensors, four four multi packs are assembled into No. 16 sensors etc., male 5 is utilized to be connected with the mutual plug of female 6 time assembled, although this programme is four multi pack sensors preferably, but it is only preferred as one of multi-joint dress current sensor, although other various situation ways are different, but use principle is consistent, therefore do not repeat.
As shown in Figure 3, the block diagram of Fig. 3 discloses use principle, CPU (central processing unit) and sample circuit are the electrical structure on circuit board, connection-peg a in figure and connection-peg b is corresponding male 5 and female 6 respectively, and signal imports the female 6 of another adjacent combination sensor into from the male 5 of one of them sensor, forms one, detect through CPU (central processing unit), draw the transmission state of electric current, wherein, the signal that sensor exports is analog quantity, switching value or digital quantity.
Above-described is only the preferred implementation of a kind of multi-joint dress current sensor provided by the present invention; should be understood that; for the person of ordinary skill of the art; without departing from the concept of the premise of the invention; can also make some distortion and improvement, these all belong to protection scope of the present invention.
Claims (6)
1. a multi-joint dress current sensor, is characterized in that, comprising: sensor main body;
Be fixedly connected with aforementioned body and accommodation space for holding detecting unit;
Aforementioned body has at least one and run through these main body both sides and the through hole that passes of supply lines.
2. the multi-joint dress current sensor of one according to claim 1, is characterized in that, described detecting unit is a circuit board.
3. the multi-joint dress current sensor of one according to claim 3, is characterized in that, the pitch-row between described adjacent through-holes is 18 ± 1mm.
4. the multi-joint dress current sensor of one according to claim 1, is characterized in that, this main body lower end is also provided with at least one holder.
5. the multi-joint dress current sensor of the one according to claim 1,2,3 or 4, is characterized in that, also comprises the connection connected structure that can plug between any two sensors, and described connected structure comprises not in a male and a female of same one end.
6. the multi-joint dress current sensor of the one according to claim 1,2,3 or 4, is characterized in that, the signal that described sensor exports is analog quantity, switching value or digital quantity.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510039000.7A CN104597309A (en) | 2015-01-27 | 2015-01-27 | Multi-parallel-connection current sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201510039000.7A CN104597309A (en) | 2015-01-27 | 2015-01-27 | Multi-parallel-connection current sensor |
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| CN104597309A true CN104597309A (en) | 2015-05-06 |
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| Application Number | Title | Priority Date | Filing Date |
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| CN201510039000.7A Pending CN104597309A (en) | 2015-01-27 | 2015-01-27 | Multi-parallel-connection current sensor |
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Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202583261U (en) * | 2012-05-15 | 2012-12-05 | 丰郅(上海)新能源科技有限公司 | Current sensor used for photovoltaic conflux monitoring |
| CN103543328A (en) * | 2012-07-10 | 2014-01-29 | 施耐德电器工业公司 | Measuring system for measuring at least one electrical quantity, electrical transforming staton comprising such a measuring system and associated measuring method |
| CN103630728A (en) * | 2013-11-16 | 2014-03-12 | 苏州长风自动化科技有限公司 | Pluggable multi-connected current sensor module |
| CN204439701U (en) * | 2015-01-27 | 2015-07-01 | 张发宇 | A kind of multi-joint dress current sensor |
-
2015
- 2015-01-27 CN CN201510039000.7A patent/CN104597309A/en active Pending
Patent Citations (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN202583261U (en) * | 2012-05-15 | 2012-12-05 | 丰郅(上海)新能源科技有限公司 | Current sensor used for photovoltaic conflux monitoring |
| CN103543328A (en) * | 2012-07-10 | 2014-01-29 | 施耐德电器工业公司 | Measuring system for measuring at least one electrical quantity, electrical transforming staton comprising such a measuring system and associated measuring method |
| CN103630728A (en) * | 2013-11-16 | 2014-03-12 | 苏州长风自动化科技有限公司 | Pluggable multi-connected current sensor module |
| CN204439701U (en) * | 2015-01-27 | 2015-07-01 | 张发宇 | A kind of multi-joint dress current sensor |
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Application publication date: 20150506 |