CN215339436U - Solar cell backboard membrane water vapor transmittance detection device based on humidity sensor - Google Patents
Solar cell backboard membrane water vapor transmittance detection device based on humidity sensor Download PDFInfo
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- CN215339436U CN215339436U CN202121785478.1U CN202121785478U CN215339436U CN 215339436 U CN215339436 U CN 215339436U CN 202121785478 U CN202121785478 U CN 202121785478U CN 215339436 U CN215339436 U CN 215339436U
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- XLYOFNOQVPJJNP-UHFFFAOYSA-N water Chemical compound O XLYOFNOQVPJJNP-UHFFFAOYSA-N 0.000 title claims abstract description 37
- 238000001514 detection method Methods 0.000 title claims abstract description 30
- 239000012528 membrane Substances 0.000 title claims abstract description 6
- 238000002834 transmittance Methods 0.000 title abstract description 17
- 238000012360 testing method Methods 0.000 claims abstract description 36
- 238000004088 simulation Methods 0.000 claims abstract description 29
- 238000012544 monitoring process Methods 0.000 claims abstract 2
- 238000007789 sealing Methods 0.000 claims description 13
- 230000035699 permeability Effects 0.000 claims description 10
- 230000005540 biological transmission Effects 0.000 claims description 3
- 230000000712 assembly Effects 0.000 claims 1
- 238000000429 assembly Methods 0.000 claims 1
- 230000007613 environmental effect Effects 0.000 abstract description 7
- 238000009833 condensation Methods 0.000 abstract description 2
- 230000005494 condensation Effects 0.000 abstract description 2
- 238000005303 weighing Methods 0.000 description 12
- 238000000034 method Methods 0.000 description 11
- 230000000694 effects Effects 0.000 description 7
- 239000002274 desiccant Substances 0.000 description 5
- 238000005259 measurement Methods 0.000 description 4
- 230000008859 change Effects 0.000 description 3
- 238000001179 sorption measurement Methods 0.000 description 3
- DQXBYHZEEUGOBF-UHFFFAOYSA-N but-3-enoic acid;ethene Chemical compound C=C.OC(=O)CC=C DQXBYHZEEUGOBF-UHFFFAOYSA-N 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000005038 ethylene vinyl acetate Substances 0.000 description 2
- 238000005286 illumination Methods 0.000 description 2
- 229920001200 poly(ethylene-vinyl acetate) Polymers 0.000 description 2
- 238000010521 absorption reaction Methods 0.000 description 1
- 239000002313 adhesive film Substances 0.000 description 1
- 230000005611 electricity Effects 0.000 description 1
- 230000006872 improvement Effects 0.000 description 1
- 238000009413 insulation Methods 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000004065 semiconductor Substances 0.000 description 1
- 239000005341 toughened glass Substances 0.000 description 1
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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
- Y02E10/00—Energy generation through renewable energy sources
- Y02E10/50—Photovoltaic [PV] energy
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Abstract
The utility model relates to the technical field of solar cells, in particular to a solar cell backboard film water vapor transmittance detection device based on a humidity sensor, which comprises: the test unit is placed in the environment simulation bin and comprises a fixed cavity and a movable cavity; the opening sides of the fixed cavity and the movable cavity are oppositely arranged, and a solar cell back panel film to be tested is clamped between the two cavities; water vapor is introduced into the movable cavity; and a temperature and humidity sensor is placed in the fixed cavity to monitor the temperature and/or humidity in the fixed cavity. Will the test unit is arranged in the environmental simulation storehouse to make the test unit be in the constant temperature state, avoid steam condensation to become the drop of water after getting into the test unit, influence the transmissivity of the solar cell backplate membrane that awaits measuring, adopt temperature and humidity sensor direct monitoring simultaneously the humidity value of fixed intracavity, in order to further reduce the error, improve and detect the precision.
Description
Technical Field
The utility model relates to the technical field of solar cells, in particular to a solar cell backboard film water vapor transmittance detection device based on a humidity sensor.
Background
The solar cell is a device for directly converting light energy into electric energy through a photoelectric effect or a photochemical effect, and a photoelectric semiconductor sheet for directly generating electricity by using sunlight is also called as a solar chip or a photoelectric cell, and can output voltage instantly and generate current under the condition of a loop as long as the solar cell is satisfied with the illumination of a certain illumination condition.
The solar cell module generally comprises tempered glass/EVA (ethylene vinyl acetate) adhesive film/cell piece/back plate, wherein the solar cell back plate is also called as a solar cell back plate film so as to seal the cell piece in the module and simultaneously achieve the effects of insulation and water resistance.
Therefore, the water vapor transmittance of the solar cell back panel film needs to be tested, and the conventional water vapor transmittance test is usually carried out by adopting a weighing method, so that on one hand, due to the generation of air flow when water vapor is introduced into the test cavity, certain impact force is generated on the test unit, and the weighing result is influenced; in yet another aspect, the weighing method reflects the water vapor transmission amount by placing a drying agent in a cavity on the water vapor transmission side, and the absorption rate of the drying agent to the transmitted water vapor also influences the test result.
SUMMERY OF THE UTILITY MODEL
The utility model aims to provide a solar cell backboard film water vapor transmittance detection device based on a humidity sensor, so as to reduce measurement errors and improve detection precision.
In order to solve the technical problem, the utility model provides a humidity sensor-based solar cell back panel film water vapor transmittance detection device, which comprises: the test unit is placed in the environment simulation bin and comprises a fixed cavity and a movable cavity; the opening sides of the fixed cavity and the movable cavity are oppositely arranged, and a solar cell back panel film to be tested is clamped between the two cavities; water vapor is introduced into the movable cavity; and a temperature and humidity sensor is placed in the fixed cavity to monitor the temperature and/or humidity in the fixed cavity.
Further, an insert is arranged on one side wall of the fixing cavity; corresponding slots are arranged on the corresponding side walls of the environment simulation bin; the signal line and the power line of the temperature and humidity sensor are communicated with the slot through the plug-in; wherein the detection signal of the temperature and humidity sensor is sent to a control module of the environment simulation bin; the control module is connected with the display module to display temperature and/or humidity data in the fixed cavity.
Further, the control module is also connected with the environment simulation cabin temperature adjusting module; the control module is suitable for adjusting the temperature in the environment simulation bin according to the temperature in the fixed cavity so as to keep the temperature inside and outside the fixed cavity consistent.
Furthermore, a humidity generator is also arranged in the environment simulation bin to input water vapor into the movable cavity; wherein the humidity generator is controlled by a control module.
Furthermore, the fixed cavity and the movable cavity adopt a covering structure, and the opening edges of the two cavities are provided with sealing annular components.
Further, the seal ring assembly comprises: a plurality of annular sealing rings are arranged at the edges of the openings of the two cavities; the corresponding ring-shaped sealing rings of the two cavities are distributed in a staggered way so as to be mutually embedded after being covered.
The solar cell back plate film moisture permeability detection device based on the humidity sensor has the advantages that the humidity value in the fixed cavity is directly monitored by the temperature and humidity sensor, and on one hand, when a weighing method is used for measurement, detection errors caused by influences on the result of the weighing method due to certain impact force generated by air flow introducing moisture into the test cavity on the test unit are avoided; on the other hand, the influence of the adsorption rate of the drying agent to the water vapor permeating in the weighing method on the test result is avoided; in addition, the test unit is arranged in the environment simulation bin, so that the test unit is in a constant temperature state, and the phenomenon that water vapor is condensed into water drops after entering the test unit to influence the transmittance of the solar cell back panel film to be tested is avoided, so that the error is further reduced, and the detection precision is improved.
Additional features and advantages of the utility model will be set forth in the description which follows, and in part will be obvious from the description, or may be learned by practice of the utility model.
In order to make the aforementioned and other objects, features and advantages of the present invention comprehensible, preferred embodiments accompanied with figures are described in detail below.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are some embodiments of the present invention, and other drawings can be obtained by those skilled in the art without creative efforts.
FIG. 1 is a schematic structural diagram of a humidity sensor-based solar cell back sheet film water vapor permeability detection device according to the present invention;
fig. 2 is a schematic block diagram of the humidity sensor-based solar cell back sheet film water vapor permeability detection device of the present invention.
In the figure: a movable cavity 1; a fixed cavity 2; a humidity generator 3; an air inlet 4; an air outlet 5; a seal 6; a temperature and humidity sensor 7; a display module 8; an environment simulation bin 9; a solar cell back sheet film to be tested 10; 11-plug-in.
Detailed Description
The present invention will now be described in further detail with reference to the accompanying drawings. These drawings are simplified schematic views illustrating only the basic structure of the present invention in a schematic manner, and thus show only the constitution related to the present invention.
Examples
As shown in fig. 1, the present embodiment provides a humidity sensor-based solar cell backsheet film moisture permeability detection apparatus, including: the test unit is placed in the environment simulation bin 9 and comprises a fixed cavity 2 and a movable cavity 1; the opening sides of the fixed cavity 2 and the movable cavity 1 are arranged oppositely, and a solar cell back plate film 10 to be tested is clamped between the two cavities; water vapor is introduced into the movable cavity 1; and a temperature and humidity sensor 7 is arranged in the fixed cavity 2 to monitor the temperature and/or humidity in the fixed cavity 2.
In the embodiment, the humidity sensor 7 is adopted to directly monitor the humidity value in the fixed cavity 2, so that on one hand, when the weighing method is used for measurement, a certain impact force is generated on the test unit by the air flow introducing water vapor into the test cavity, and the detection error caused by the influence on the result of the weighing method is avoided; on the other hand, the influence of the adsorption rate of the drying agent to the water vapor permeating in the weighing method on the test result is avoided; in addition, the test unit is arranged in the environment simulation bin 9, so that the test unit is in a constant temperature state, and water vapor is prevented from being condensed into water drops after entering the test unit, so that the transmittance of the solar cell back panel film 10 to be tested is prevented from being influenced, errors are further reduced, and the detection precision is improved.
Specifically, the solar cell back panel film 10 to be detected is placed at the opening of the fixed cavity 2, and the movable cavity 1, the solar cell back panel film 10 to be detected and the fixed cavity 2 are sealed by using the sealing element 6, so that air leakage is prevented, and the detection result is prevented from being influenced; wherein, steam gets into activity intracavity 1 from air inlet 4 along arrow direction in the picture to in getting into fixed chamber 2 behind the backplate membrane 10, monitor the humidity change in fixed chamber 2 through the temperature and humidity sensor 7 of placing in fixed chamber 2, with the steam transmissivity of reflection solar cell backplate membrane 10 that awaits measuring.
Optionally, an air outlet 5 is disposed on one side of the movable cavity 1 away from the air inlet 4 to balance air pressure in the movable cavity 1.
Further, as shown in fig. 2, a side wall of the fixing cavity 2 is provided with an insert 11; corresponding slots are arranged on the corresponding side walls of the environment simulation bin 9; the signal line and the power line of the temperature and humidity sensor 7 are communicated with the slot through the plug-in; wherein, the detection signal of the temperature and humidity sensor 7 is sent to the control module of the environment simulation bin 9; the control module is connected to a display module 8 for displaying temperature and/or humidity data within the fixed chamber.
Optionally, the control module is further connected with the environment simulation bin temperature adjusting module; the control module is suitable for adjusting the temperature in the environment simulation bin 9 according to the temperature in the fixed cavity 2 so as to keep the temperature inside and outside the fixed cavity 2 consistent.
Specifically, when the solar cell back panel film is used outdoors, the solar cell back panel film may be at different environmental temperatures, so that the control module in the solar cell back panel film moisture transmittance detection apparatus based on the humidity sensor of this embodiment may also feed back the moisture transmittance of the solar cell back panel film 10 to be detected at a specific temperature according to the temperature and humidity value in the fixed cavity 2 monitored by the temperature and humidity sensor; further, the control module can also control the temperature regulation module of the environmental simulation bin to adjust the temperature of the environmental simulation bin 9 so as to change the test temperature of the solar cell back panel film 10 to be tested in the test unit and perform water vapor transmittance tests at different temperatures.
Optionally, the temperature and humidity sensor may be, but is not limited to, an SHT11 sensor; the control module can adopt but not limited to STM32 singlechip.
Further, preferably, a humidity generator 3 is further arranged in the environment simulation bin 9 to input water vapor into the movable cavity 1; wherein the humidity generator 3 is controlled by a control module.
Specifically, will humidity generator 3 arranges in environmental simulation storehouse 9, by control module control humidity generator 3 to constant temperature steam is imported in the activity chamber 1, in order to further avoid steam to get into because temperature difference causes the steam condensation in the activity chamber 1, influence the testing result.
Furthermore, the fixed cavity 2 and the movable cavity 1 adopt a covering structure, and the opening edges of the two cavities are provided with sealing ring-shaped components.
Optionally, the sealing ring assembly comprises: a plurality of annular sealing rings are arranged at the edges of the openings of the two cavities; the corresponding ring-shaped sealing rings of the two cavities are distributed in a staggered way, so that the sealing rings are mutually embedded after being covered, and the sealing effect is improved.
The functional modules related to the present embodiment all belong to the category of the prior art, and the present application does not make any creative improvement on the circuits of the functional modules themselves. The technical problem to be solved by the present application is fully solved by the description of the functional modules according to the present embodiment, which is fully within the capability of those skilled in the art.
In summary, the utility model provides a humidity sensor-based solar cell back plate film moisture permeability detection device, wherein a temperature and humidity sensor 7 is adopted to directly monitor the humidity value in a fixed cavity 2, so that on one hand, when a weighing method is used for measurement, detection errors caused by the influence on the result of the weighing method due to certain impact force generated by air flow introducing moisture into a test cavity on a test unit are avoided; on the other hand, the influence of the adsorption rate of the drying agent to the water vapor permeating in the weighing method on the test result is avoided; in addition, the test unit is placed in the environment simulation bin 9, so that the test unit is in a constant temperature state, and the phenomenon that water vapor is condensed into water drops after entering the test unit to influence the transmittance of the solar cell back panel film 10 to be tested is avoided, so that the error is further reduced, and the detection precision is improved; the control module in the solar cell back panel film water vapor transmittance detection device based on the humidity sensor can also feed back the water vapor transmittance of the solar cell back panel film 10 to be detected at a specific temperature according to the temperature and humidity value in the fixed cavity 2 monitored by the temperature and humidity sensor; furthermore, the control module can also control the temperature regulation module of the environmental simulation bin to adjust the temperature of the environmental simulation bin so as to change the test temperature of the solar cell back panel film 10 to be tested in the test unit and perform water vapor transmittance tests at different temperatures.
In light of the foregoing description of the preferred embodiment of the present invention, many modifications and variations can be made by the worker in the light of the above teachings without departing from the spirit of the utility model. The technical scope of the present invention is not limited to the content of the specification, and must be determined according to the scope of the claims.
Claims (6)
1. The utility model provides a solar cell backplate membrane vapor transmission rate detection device based on humidity sensor which characterized in that includes:
the test unit is placed in the environment simulation bin and comprises a fixed cavity and a movable cavity; wherein
The opening sides of the fixed cavity and the movable cavity are oppositely arranged, and a solar cell back panel film to be tested is clamped between the two cavities;
water vapor is introduced into the movable cavity; and
temperature and humidity sensor has been placed to fixed intracavity to the monitoring temperature and/or humidity in the fixed intracavity.
2. The solar cell backsheet film moisture vapor permeability detection apparatus according to claim 1,
an insert is arranged on one side wall of the fixing cavity; and
corresponding slots are arranged on the corresponding side walls of the environment simulation bin;
the signal line and the power line of the temperature and humidity sensor are communicated with the slot through the plug-in; wherein
The detection signal of the temperature and humidity sensor is sent to a control module of the environment simulation bin;
the control module is connected with the display module to display temperature and/or humidity data in the fixed cavity.
3. The solar cell backsheet film moisture vapor permeability detection apparatus according to claim 2,
the control module is also connected with the environment simulation cabin temperature adjusting module;
the control module is suitable for adjusting the temperature in the environment simulation bin according to the temperature in the fixed cavity so as to keep the temperature inside and outside the fixed cavity consistent.
4. The solar cell backsheet film moisture vapor permeability detection apparatus according to claim 2,
a humidity generator is also arranged in the environment simulation bin to input water vapor into the movable cavity; wherein
The humidity generator is controlled by a control module.
5. The solar cell backsheet film moisture vapor permeability detection apparatus according to claim 1,
the fixed cavity and the movable cavity adopt a covering structure, and the opening edges of the two cavities are provided with sealing annular assemblies.
6. The solar cell backsheet film moisture vapor permeability detection apparatus according to claim 5,
the seal ring assembly includes: a plurality of annular sealing rings are arranged at the edges of the openings of the two cavities;
the corresponding ring-shaped sealing rings of the two cavities are distributed in a staggered way so as to be mutually embedded after being covered.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121785478.1U CN215339436U (en) | 2021-08-02 | 2021-08-02 | Solar cell backboard membrane water vapor transmittance detection device based on humidity sensor |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202121785478.1U CN215339436U (en) | 2021-08-02 | 2021-08-02 | Solar cell backboard membrane water vapor transmittance detection device based on humidity sensor |
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| CN215339436U true CN215339436U (en) | 2021-12-28 |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114441379A (en) * | 2022-01-13 | 2022-05-06 | 中国乐凯集团有限公司 | Dehumidification capacity testing device and testing method for gas dehumidification film |
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2021
- 2021-08-02 CN CN202121785478.1U patent/CN215339436U/en active Active
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114441379A (en) * | 2022-01-13 | 2022-05-06 | 中国乐凯集团有限公司 | Dehumidification capacity testing device and testing method for gas dehumidification film |
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Address after: No. 168 Jiaotong North Road, Wujiang Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee after: Suzhou Yisheng Optical Materials Co.,Ltd. Address before: No. 168 Jiaotong North Road, Wujiang Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee before: SUZHOU YISHENG OPTICAL MATERIAL Co.,Ltd. |
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Address after: No. 5399 Jiaotong Road, Wujiang District, Changzhou City, Jiangsu Province, 215000 Patentee after: Suzhou Yisheng Optical Materials Co.,Ltd. Address before: No. 168 Jiaotong North Road, Wujiang Economic and Technological Development Zone, Suzhou City, Jiangsu Province Patentee before: Suzhou Yisheng Optical Materials Co.,Ltd. |