CN216672964U - Portable detector for IV characteristics of solar cell - Google Patents
Portable detector for IV characteristics of solar cell Download PDFInfo
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- CN216672964U CN216672964U CN202122751301.6U CN202122751301U CN216672964U CN 216672964 U CN216672964 U CN 216672964U CN 202122751301 U CN202122751301 U CN 202122751301U CN 216672964 U CN216672964 U CN 216672964U
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- shell
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- solar cell
- voltage
- cell panel
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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 discloses a portable detector for IV characteristics of a solar cell, which comprises a device main body and electronic instruments with different functions, wherein the electronic instruments are arranged in the device main body. In the course of the work, anodal terminal links to each other with solar cell panel is anodal, and the negative terminal links to each other with the solar cell panel negative pole, measures solar cell panel's open circuit voltage this moment: and then adjusting the resistance values of the two sliding rheostats to the maximum, switching on the ship-shaped switch, slowly adjusting the resistance value of the large-range sliding rheostat to 0, slowly adjusting the resistance value of the small-range sliding rheostat to 0, recording the indication number of the detection instrument, and processing the data to obtain the IV characteristic curve of the solar cell panel. Compared with the traditional detection mode, the utility model has small volume and simple and convenient operation, can be used for measuring various solar panels, and the shell is manufactured by 3D printing, has high precision and is not easy to deform. The products in the market are not popularized in a large area, can occupy the market in a short time, and have very wide prospects.
Description
Technical Field
The utility model relates to the field of performance detection of solar panels, in particular to a portable detector for solar IV characteristics.
Background
With the development of the times, the demand of human society for energy has increased dramatically, and nowadays petrochemical energy represented by coal and petroleum is facing the current situation of exhaustion. Therefore, a great variety of novel energy sources are developed, and solar energy and related industries are undergoing rapid development. As an important means for solar energy application, related performance tests of the solar cell panel are generally carried out in a laboratory under simulated natural conditions, and have a large difference from the actual working environment. In order to optimally design a solar photovoltaic system, the photoelectric performance of the solar photovoltaic system needs to be measured under a real working state, so that a portable solar IV characteristic detector needs to be developed.
SUMMERY OF THE UTILITY MODEL
The method is used for measuring the IV characteristics of the solar cell panel, and solves the problem of difficult detection in various complex environments.
The housing (8) is manufactured by 3D printing technology. A first rectangular opening (9) is machined in the upper end of the front face of the shell (8), a first round opening (10) and a second round opening (11) are respectively formed in the lower end of the front face of the shell, a second rectangular opening (12) is formed in the right side face of the shell (8), and a third round opening (13) and a fourth round opening (14) are formed in the top face of the shell (8).
Electronic component mounting inside the housing: the voltage and current double-display meter (5) is arranged in a first rectangular opening (9) at the upper end of the front surface of a shell (8), a ship-shaped switch (2) is arranged in a second rectangular opening (12) at the right side surface of the shell (8), a positive terminal (7) of the voltage and current double-display meter (5) is arranged in a third circular opening (13) at the top surface of the shell (8), a negative terminal (6) of the voltage and current double-display meter (5) is arranged in a fourth circular opening (14) at the left end of the top surface of the shell (8), a plectrum of a first slide rheostat (3) is matched with a knob and arranged in the first circular opening (10) at the lower end of the front surface of the shell (8), and a plectrum of a second slide rheostat (4) is matched with the knob and arranged in the second circular opening (11) at the lower end of the front surface of the shell (8), so that the resistance values of the two slide rheostats can be adjusted through the two knobs.
The circuit connection inside the shell: one end of a lead is connected with a positive terminal (7) of the voltage and current double display meter (5), the other end of the lead is connected with one end of the ship-shaped switch (2), the lead is connected with one end of the first slide rheostat (3) from the other end of the ship-shaped switch (2), the lead is connected with one end of the second slide rheostat (4) from the other end of the first slide rheostat (3), and the lead is connected with a negative terminal (6) of the voltage and current double display meter (5) from the other end of the second slide rheostat (4) to form a series circuit. The first slide rheostat and the second slide rheostat are respectively a large range and a small range, and two combination modes can form two specific embodiments.
Portable detector of solar energy IV characteristic is at the working process, and anodal terminal (7) links to each other with the solar cell panel is anodal, and negative terminal (6) link to each other with the solar cell panel negative pole, measures solar cell panel's open circuit voltage this moment: then adjusting the resistance values of the two sliding rheostats to the maximum, switching on the ship-shaped switch (2), firstly, slowly adjusting the resistance value of the large-range sliding rheostat to 0, then slowly adjusting the resistance value of the small-range sliding rheostat to 0, recording the indication number of a detection instrument in the period, processing display data to obtain an IV characteristic curve of the solar cell panel, multiplying the short-circuit current of the curve by the open-circuit voltage to obtain the rated power of the solar cell panel, finding out the maximum actual power from the curve, and enabling the actual power to be close to the rated power by adjusting the working conditions of the solar cell panel so as to carry out maximum power generation.
The solar energy IV characteristic portable detector has the working principle that: when the solar cell panel is a power generation device for converting light energy into electric energy, when the solar cell panel normally works, the electric energy converted from the light energy can be supplied to an external circuit through the solar cell panel, the external circuit can obtain most electric energy generated by the solar cell panel at the moment, and a small part of electric energy can be consumed by the internal resistance of the solar cell panel. This patent changes the process that simulates external circuit consumption electric energy through the resistance of sliding rheostat to voltage, the electric current display of in-process come out through detecting instrument, with this IV characteristic that obtains solar cell panel.
The utility model solves the problems of complex connection, difficult carrying and the like of detection equipment caused by the need of a plurality of detection instruments in the conventional detection means; in the data reading process, the problems of confusion and the like caused by a voltmeter and an ammeter need to be considered.
The utility model integrates the voltage and current testing module, the slide rheostat, the circuit and the switch into a new detection device, and has the advantages of small volume, convenient carrying, simple operation and accurate data measurement.
Drawings
FIG. 1 is a circuit diagram of the solar energy IV characteristic portable detector.
Fig. 2 is a front view of the solar IV portable detector housing of the present invention.
Fig. 3 is a side view of a solar IV portable detector housing of the present invention.
Fig. 4 is a top view of a solar IV characteristic portable detector housing of the present invention.
Detailed Description
The utility model is described in detail below with reference to the attached drawing figures: firstly, the positive terminal 7 is connected with the positive electrode of the solar cell panel, and the negative terminal 6 is connected with the negative electrode of the solar cell panel. The open circuit voltage of the solar panel is recorded at this time.
Secondly, after the resistance values of the two sliding rheostats are adjusted to the maximum, the ship-shaped switch 2 is switched on, the resistance value of the large-range sliding rheostat is slowly adjusted to 0, then the resistance value of the small-range sliding rheostat is slowly adjusted to 0, and the indication of the detection instrument is recorded in the period, so that the IV characteristic of the solar cell panel can be obtained. In the process, voltage and current readings are recorded for many times, and a solar cell panel IV curve is manufactured by taking the time data as a reference. In the graph: the product of the short-circuit current and the open-circuit voltage is the rated power of the solar cell panel; the product of the detected voltage and the detected current is the actual power of the solar panel.
And then, the service state of the solar panel is adjusted by comparing the actual power with the rated power, and when the actual power is close to the rated power, the solar panel can be considered to be in a normal working state.
The shell is prepared by adopting a 3D printing technology, and the optimal relevant sizes of the shell are as follows:
the shell size is 140X 120X 50 mm.
A first rectangular opening with a size of 77 x 39.5mm is reserved at the upper end of the front surface of the shell.
The diameter of a first round opening and a second round opening which are left and right are reserved at the lower end of the front surface of the shell is 10 mm.
A second rectangular opening 22 x 14mm is reserved in the middle of the right side face of the shell.
The diameters of a third round opening and a fourth round opening which are reserved at the left end and the right end of the upper surface of the shell are 6 mm.
The technical solutions only represent one or more preferable technical solutions of the utility model, and some modifications that may be made to some parts by those skilled in the art can represent the principle of the present invention, and belong to the protection scope of the utility model.
Claims (4)
1. A portable solar IV characteristic detector, comprising: a shell (8) and a plurality of electronic elements and leads arranged in the shell (8);
a first rectangular opening (9) is processed at the upper end of the front of the shell (8), a first round opening (10) and a second round opening (11) are respectively arranged at the lower end of the front, a second rectangular opening (12) is arranged on the right side surface of the shell (8), and a third round opening (13) and a fourth round opening (14) are arranged on the top surface of the shell (8);
a plurality of the electronic components include: the voltage and current double-display meter comprises a voltage and current double-display meter (5), a ship-shaped switch (2), a first sliding rheostat (3) and a second sliding rheostat (4), wherein a positive terminal (7) and a negative terminal (6) are arranged on the voltage and current double-display meter (5), one of the first sliding rheostat (3) and the second sliding rheostat (4) is in a small range, and the other one of the first sliding rheostat (3) and the second sliding rheostat (4) is in a large range;
the positive terminal (7) of the voltage and current double display meter (5) is connected with one end of the ship-shaped switch (2) through a plurality of leads, the other end of the ship-shaped switch (2) is connected with the first sliding rheostat (3), the other end of the first sliding rheostat (3) is connected with the second sliding rheostat (4), and the other end of the second sliding rheostat (4) is connected with the negative terminal (6) of the voltage and current double display meter (5) to form a series loop;
the voltage and current double display meter (5) is installed in a first rectangular opening (9) in the front of the shell (8), the ship-shaped switch (2) is installed in a second rectangular opening (12) in the right side face of the shell (8), the positive terminal (7) of the voltage and current double display meter (5) is installed in a third circular opening (13) in the top face of the shell (8), the negative terminal (6) of the voltage and current double display meter (5) is installed in a fourth circular opening (14) in the top face of the shell (8), the first sliding rheostat (3) is installed in a first circular opening (10) in the front lower end of the shell (8), and the second sliding rheostat (4) is installed in a second circular opening (11) in the front lower end of the shell (8).
2. A portable solar IV characteristic detector according to claim 1, wherein the first sliding varistor (3) is a small-range sliding varistor and the second sliding varistor (4) is a large-range sliding varistor.
3. A portable solar IV characteristic detector according to claim 1, wherein the first sliding varistor (3) is a wide-range sliding varistor and the second sliding varistor (4) is a narrow-range sliding varistor.
4. A portable detector of solar IV characteristics according to claim 2 or 3, characterized in that the housing (8) is prepared for 3D printing technology.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122751301.6U CN216672964U (en) | 2021-11-11 | 2021-11-11 | Portable detector for IV characteristics of solar cell |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202122751301.6U CN216672964U (en) | 2021-11-11 | 2021-11-11 | Portable detector for IV characteristics of solar cell |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN216672964U true CN216672964U (en) | 2022-06-03 |
Family
ID=81790348
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN202122751301.6U Active CN216672964U (en) | 2021-11-11 | 2021-11-11 | Portable detector for IV characteristics of solar cell |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN216672964U (en) |
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2021
- 2021-11-11 CN CN202122751301.6U patent/CN216672964U/en active Active
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Legal Events
| Date | Code | Title | Description |
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| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| EE01 | Entry into force of recordation of patent licensing contract | ||
| EE01 | Entry into force of recordation of patent licensing contract |
Assignee: Liaoning Xitai Technology Co.,Ltd. Assignor: YINGKOU INSTITUTE OF TECHNOLOGY Contract record no.: X2022210000067 Denomination of utility model: Solar cell IV characteristic portable detector Granted publication date: 20220603 License type: Common License Record date: 20221212 |