CN216216767U - Conductive backboard detection device - Google Patents
Conductive backboard detection device Download PDFInfo
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- CN216216767U CN216216767U CN202122004373.4U CN202122004373U CN216216767U CN 216216767 U CN216216767 U CN 216216767U CN 202122004373 U CN202122004373 U CN 202122004373U CN 216216767 U CN216216767 U CN 216216767U
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- Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
- Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
- Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
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Abstract
The present disclosure relates to a conductive backplane detection device, the conductive backplane forms mutually separated conductive contact areas through a separation part, the detection device comprises a detection power supply and a detection circuit set, the detection power supply is connected with the detection circuit set; the detection circuit set comprises a plurality of detection circuits, and different detection circuits detect different separation parts; each detection circuit comprises a first probe and a second probe which are used for being connected to two sides of the separation part of the conductive backboard to be detected; each of the detection circuits further comprises a resistive component through which the first probe is electrically connected with the second probe; and under the condition that the first probe and the second probe are connected to two sides of the separation part of the conductive backboard to be detected, the detection circuit generates a detection signal for representing whether the detected separation part is short-circuited or not.
Description
Technical Field
The disclosure relates to the field of detection of back-contact solar cell conductive back plates, in particular to a conductive back plate detection device.
Background
At present, a back contact solar cell is widely concerned, and because the front side of the back contact solar cell is not provided with a main grid line or even any electrode pattern, the positive electrode and the negative electrode are both arranged on the back side of the cell, so that the shading of the cell is reduced, the short-circuit current of the cell is effectively increased, and the energy conversion efficiency of the cell is improved.
The back contact solar cell module has started to research the use of a conductive back sheet to realize the conductive interconnection between back contact cells, so that the back contact solar cell has high requirements on the conductive back sheet, and the separation part between conductive contact regions formed in the processing process of the conductive back sheet needs to be removed, and if the removal is not complete, a short circuit phenomenon of a circuit can be caused.
At present, whether the separation part is completely removed is mainly identified manually, but because the width of the separation part is small, the separation part is difficult to detect by naked eyes, and therefore, whether the separation part is completely removed cannot be accurately determined by the existing method.
SUMMERY OF THE UTILITY MODEL
In order to solve the above problems, an object of the present disclosure is to provide a conductive backplane detection apparatus.
In a first aspect, the present disclosure provides a conductive backplane detection apparatus, where the conductive backplane forms mutually separated conductive contact areas through a separation portion, the detection apparatus includes a detection power supply and a detection circuit set, and the detection power supply is connected to the detection circuit set; the detection circuit set comprises a plurality of detection circuits, and different detection circuits detect different separation parts; each detection circuit comprises a first probe and a second probe which are used for being connected to two sides of the separation part of the conductive backboard to be detected; each of the detection circuits further comprises a resistive component through which the first probe is electrically connected with the second probe; and under the condition that the first probe and the second probe are connected to two sides of the separation part of the conductive backboard to be detected, the detection circuit generates a detection signal for representing whether the detected separation part is short-circuited or not.
Optionally, the first probe of one of the detection circuits and the second probe of the other of the detection circuits access the same conductive contact area in adjacent detection circuits.
Optionally, the resistive component comprises a resistive or light-emitting component.
Optionally, in a case where the resistance component is a resistance, the detection signal includes a current signal; the detection device further comprises: and the processor is respectively connected with the detection power supply and the detection circuit set and is used for acquiring the current signal and determining the separation part with the short circuit according to the current signal.
Optionally, the resistances of the resistors of different detection circuits are different, so that the detection circuits generate different current signals when different separation parts are short-circuited; the processor determines that the conductive backboard has a short circuit condition under the condition that the detected current signal is different from a preset standard current threshold value, and determines the separating part with the short circuit according to the current signal.
Optionally, in a case where the resistive component is a light-emitting component, the detection signal represents a light-emitting state of the light-emitting component, and the light-emitting state includes light emission or light extinction; when the light-emitting component emits light, the separated part detected by the detection circuit where the light-emitting component is located is represented to be not short-circuited; and when the light-emitting component is extinguished, the short circuit of the separation part detected by the detection circuit where the light-emitting component is located is represented.
Optionally, the detection circuit set comprises a plurality of detection circuit arrays, the plurality of detection circuit arrays being connected in series, each detection circuit array comprising a first circuit sub-array and a second circuit sub-array, the first circuit sub-array and the second circuit sub-array being connected in parallel; the first circuit subarray and the second circuit subarray are both composed of a plurality of detection circuits.
By adopting the conductive backboard detection device, the first probe and the second probe in the detection circuit can be respectively connected into detection signals generated on two sides of the separation part of the conductive backboard to be detected, so as to detect whether the separation part is short-circuited or not, and the detection efficiency of the conductive backboard is effectively improved.
Additional features and advantages of the disclosure will be set forth in the detailed description which follows.
Drawings
The accompanying drawings, which are included to provide a further understanding of the disclosure and are incorporated in and constitute a part of this specification, illustrate embodiments of the disclosure and together with the description serve to explain the disclosure without limiting the disclosure. In the drawings:
fig. 1 is a circuit diagram of a conductive backplane detection apparatus provided in an embodiment of the present disclosure;
fig. 2 is a circuit diagram of a detection circuit provided by an embodiment of the present disclosure;
fig. 3 is a partial schematic view of a conductive backplane provided by an embodiment of the present disclosure;
FIG. 4 is a circuit diagram of another conductive backplane detection apparatus provided by embodiments of the present disclosure;
fig. 5 is a circuit diagram of a detection circuit set according to an embodiment of the disclosure.
Detailed Description
The following detailed description of specific embodiments of the present disclosure is provided in connection with the accompanying drawings. It should be understood that the detailed description and specific examples, while indicating the present disclosure, are given by way of illustration and explanation only, not limitation.
Firstly, an application scenario of the present disclosure is explained, and the present disclosure is applied to a detection scenario of a back contact solar cell conductive backplane, in which it is necessary to accurately determine whether a short circuit problem exists in the conductive backplane, and since the short circuit problem is difficult to be identified by naked eyes, in the conventional conductive backplane short circuit problem detection, it is mainly determined whether a separation part is completely removed by manual identification, so that it is impossible to accurately determine whether a short circuit problem exists in the conductive backplane.
In order to solve the above problem, the present disclosure provides a conductive backplane detection device, which can determine whether a short circuit occurs in a detected conductive backplane according to different detection signals triggered by a detection circuit, thereby avoiding detection of the conductive backplane through a manual method, effectively improving detection efficiency and detection accuracy of the conductive backplane, and reducing potential risks of the short circuit of the conductive backplane and rework operations.
The present disclosure is described below with reference to specific examples.
Fig. 1 is a conductive backplane detection apparatus 100 provided in an embodiment of the present disclosure, the conductive backplane forms mutually separated conductive contact areas through a separation portion, the detection apparatus includes a detection power source 101, a detection circuit set 102, the detection power source 101 is connected to the detection circuit set 102; the detection circuit set 102 includes a plurality of detection circuits 200, different detection circuits 200 detecting different separation portions; as shown in fig. 2, each of the detection circuits 200 includes a first probe 201 and a second probe 202 for accessing to both sides of the separated portion of the conductive backplane to be detected; each of the detection circuits 200 further includes a resistance member 203, and the first probe 201 is electrically connected to the second probe 202 through the resistance member 203;
in the case that the first probe 201 and the second probe 202 are connected to both sides of the separated portion of the conductive backplane to be detected, the detection circuit 200 generates a detection signal for indicating whether the detected separated portion is short-circuited.
By adopting the conductive backboard detection device, whether the conductive backboard is short-circuited or not can be accurately and efficiently monitored, and the detection efficiency is greatly improved.
Fig. 3 is a partial schematic view of a conductive backplane according to an embodiment of the disclosure, as shown in fig. 3, the conductive backplane is divided into a first pattern 302 and a second pattern 303 by a separating portion 301, a first probe 201 and a second probe 202 of the detection circuit are respectively connected to the first pattern 302 and the second pattern 303 of the conductive backplane, and in the adjacent detection circuit, the second probe 202 of the detection circuit and the first probe 203 of another detection circuit are connected to the same conductive contact area.
In addition, the resistive member includes a resistor or a light emitting member, and the detection signal includes a current signal in the case where the resistive member is a resistor, and the detection signal represents a light emitting state of the light emitting member in the case where the resistive member is a light emitting member.
Fig. 4 is a diagram of a conductive backplane detection apparatus 400 provided in an embodiment of the present disclosure, where the resistance component is a resistance, and the conductive backplane detection apparatus 400 includes a detection power source 101, a detection circuit set 102, and a processor 401, where the detection power source 101 is connected to the detection circuit set 102, and the processor 401 is connected to the detection circuit set 102 and the detection power source 101, respectively; the detection circuit set 102 includes a plurality of detection circuits 200, different detection circuits 200 detecting different separation portions;
the processor 401 is configured to obtain the current signal and determine the separation portion where the short circuit occurs according to the current signal.
The resistance values of the resistance elements of different detection circuits are different, and the preset resistance values of the resistance elements are used for generating different current signals under the condition that the detection circuits generate short circuits at different separating parts, and presetting the current signals under the condition that the conductive backboard is not short-circuited as a standard current threshold; the processor determines that the conductive backboard has a short circuit condition under the condition that the detected current signal is different from the preset standard current threshold, and determines the separating part with the short circuit according to the difference of the current signals.
For example, in a case that the detection power supplies provide the same voltage, and the detected conductive backplates have no short circuit problem, the processor detects the same current signal for multiple times, which is a preset standard current signal threshold, or the current signal is within a tolerable error range centered on the standard current signal threshold, for example, the standard current signal threshold may be 10000uA, the error range may be ± 3uA, or ± 5uA, and for example, the error range is ± 3uA, and the current signal is within a range of (9997 uA, 10003 uA), it can be determined that the conductive backplane has no short circuit problem. In the case that the conductive backboard has a short circuit problem, since the resistance element of the detection circuit is short-circuited, the processor can detect that the current signal of the detection circuit is increased, determine that the conductive backboard has the short circuit problem, and then can pass through
RString＝R1+R2And
the resistance value of the short-circuited resistance element is determined, and the short-circuited position of the conductive backplane is determined according to the detection circuit corresponding to the resistance element, for example, the detection circuit set may be formed by connecting 3 detection circuit arrays in series, each detection circuit array may be formed by connecting 2 detection circuit sub-arrays in parallel, each detection circuit sub-array may be formed by connecting a plurality of detection circuits in series, and each detection circuit sub-array is numbered. In the above-mentioned detection circuit set, U may be preset as a detection power supply voltage, I may be preset as a standard current signal threshold, R is preset as a standard total resistance of the detection circuit set under the condition that the conductive backplane does not have a short circuit problem, under the above-mentioned conditions, the conductive backplane detection device detects the conductive backplane to be detected, and if the processor detects that the current signal is I1And the current signal I1If the conductive backboard is not within the preset error range, determining that the conductive backboard has a short circuit problem
The actual total resistance value of the conductive backboard to be detected can be obtained, the actual total resistance value is compared with the lumped resistance value of the detection circuit after a single detection circuit or a plurality of detection circuits are short-circuited in the detection circuit set one by one, the serial number of the target detection circuit is determined to be the serial number of the short-circuited detection circuit under the condition that the actual total resistance value is the same as the lumped resistance value of the detection circuit after the target detection circuit is short-circuited or the difference value of the actual total resistance value and the lumped resistance value of the detection circuit after the target detection circuit is short-circuited is in an error range, and the serial number is displayed or alarmed.
It should be noted that, the resistance value of the resistor element in the detection circuit may be preset, so that different current signals are generated under the condition that different separating portions are short-circuited, thereby avoiding that the specific position of the conductive backplane at which the short circuit occurs cannot be determined due to the same current signal under the condition that there may be a plurality of different separating portions that are short-circuited.
Fig. 5 is a circuit diagram of a detection circuit set according to an embodiment of the present disclosure, where the detection circuit set includes a plurality of detection circuit arrays, here, 3 detection circuit arrays are taken as an example, and are respectively a first detection circuit array 501, a second detection circuit array 502, and a third detection circuit array 503, the plurality of detection circuit arrays are connected in series, each detection circuit array includes a first circuit sub-array 5001 and a second circuit sub-array 5002, the first circuit sub-array 5001 and the second circuit sub-array 5002 are connected in parallel, and the first circuit sub-array 5001 and the second circuit sub-array 5002 are both composed of a plurality of detection circuits.
Illustratively, the detection circuit set is connected with the detection power supply through one of the detection circuits and connected with the processor through one of the detection circuits in the other detection circuit array; in the case of detection by the conductive backboard detection device, the detection circuit set makes all detection circuits form a path through the conductive backboard.
By adopting the detection device, whether the conductive backboard is short-circuited or not can be quickly confirmed through the change of the current signal, and the position of the conductive backboard with the short circuit can be accurately judged through calculating the current signal and the resistance value change of the resistance element under the condition that the conductive backboard is short-circuited.
In addition, the resistance element can also be a signal light-emitting component, and in the case that the resistance component is a light-emitting component, the detection signal represents the light-emitting state of the light-emitting component, and the light-emitting state comprises light emission or light extinction;
when the light-emitting component emits light, the separated part detected by the detection circuit where the light-emitting component is located is represented to be not short-circuited; and when the light-emitting component is extinguished, the short circuit of the separation part detected by the detection circuit where the light-emitting component is located is represented.
By adopting the device, the corresponding position of the conductive backboard with the short circuit problem can be directly displayed under the condition that the conductive backboard with the short circuit problem occurs, so that the complex device and calculation are avoided, and the display of the short circuit fault is more visual.
The preferred embodiments of the present disclosure are described in detail with reference to the accompanying drawings, however, the present disclosure is not limited to the specific details of the above embodiments, and various simple modifications may be made to the technical solution of the present disclosure within the technical idea of the present disclosure, and these simple modifications all belong to the protection scope of the present disclosure.
It should be noted that, in the foregoing embodiments, various features described in the above embodiments may be combined in any suitable manner, and in order to avoid unnecessary repetition, various combinations that are possible in the present disclosure are not described again.
In addition, any combination of various embodiments of the present disclosure may be made, and the same should be considered as the disclosure of the present disclosure, as long as it does not depart from the spirit of the present disclosure.
Claims (7)
1. The conductive backboard detection device is characterized in that the conductive backboard forms mutually separated conductive contact areas through a separation part, the detection device comprises a detection power supply and a detection circuit set, and the detection power supply is connected with the detection circuit set; the detection circuit set comprises a plurality of detection circuits, and different detection circuits detect different separation parts;
each detection circuit comprises a first probe and a second probe which are used for being connected to two sides of the separation part of the conductive backboard to be detected; each of the detection circuits further comprises a resistive component through which the first probe is electrically connected with the second probe;
and under the condition that the first probe and the second probe are connected to two sides of the separation part of the conductive backboard to be detected, the detection circuit generates a detection signal for representing whether the detected separation part is short-circuited or not.
2. The apparatus of claim 1, wherein the first probe of one of the sensing circuits and the second probe of another of the sensing circuits access a same conductive contact area in adjacent ones of the sensing circuits.
3. The apparatus of claim 1, wherein the resistive component comprises a resistive or light-emitting component.
4. The apparatus of claim 3, wherein in a case where the resistance member is a resistance, the detection signal includes a current signal; the detection device further comprises:
and the processor is respectively connected with the detection power supply and the detection circuit set and is used for acquiring the current signal and determining the separation part with the short circuit according to the current signal.
5. The apparatus of claim 4, wherein the resistances of the resistors of different detection circuits are different, so that the detection circuits generate different current signals in case of short circuit of different separation parts;
the processor determines that the conductive backboard has a short circuit condition under the condition that the detected current signal is different from a preset standard current threshold value, and determines the separating part with the short circuit according to the current signal.
6. The apparatus according to claim 3, wherein in a case where the resistive member is a light emitting member, the detection signal indicates a light emitting state of the light emitting member, the light emitting state including light emission or extinction;
when the light-emitting component emits light, the separated part detected by the detection circuit where the light-emitting component is located is represented to be not short-circuited; and when the light-emitting component is extinguished, the short circuit of the separation part detected by the detection circuit where the light-emitting component is located is represented.
7. The apparatus of any one of claims 1 to 6, wherein the set of detection circuits comprises a plurality of detection circuit arrays, the plurality of detection circuit arrays being connected in series, each detection circuit array comprising a first circuit sub-array and a second circuit sub-array, the first circuit sub-array and the second circuit sub-array being connected in parallel; the first circuit subarray and the second circuit subarray are both composed of a plurality of detection circuits.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122004373.4U CN216216767U (en) | 2021-08-24 | 2021-08-24 | Conductive backboard detection device |
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| CN202122004373.4U CN216216767U (en) | 2021-08-24 | 2021-08-24 | Conductive backboard detection device |
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| CN216216767U true CN216216767U (en) | 2022-04-05 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117008070A (en) * | 2023-10-07 | 2023-11-07 | 成都世源频控技术股份有限公司 | Radar simulator with electric leakage detection function |
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2021
- 2021-08-24 CN CN202122004373.4U patent/CN216216767U/en active Active
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN117008070A (en) * | 2023-10-07 | 2023-11-07 | 成都世源频控技术股份有限公司 | Radar simulator with electric leakage detection function |
| CN117008070B (en) * | 2023-10-07 | 2023-12-19 | 成都世源频控技术股份有限公司 | Radar simulator with electric leakage detection function |
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