High-precision heterojunction battery electrical performance test equipment

Abstract

The invention discloses a high-precision heterojunction cell electrical performance test device, which belongs to the technical field of heterojunction cells, and comprises a base, a light source simulator, four groups of upper covers and an intermediate box, a bracket is fixedly mounted on the base; an outer ring body is fixedly installed on the base, an inner gear ring is rotatably installed in the outer ring body, an electric gear is installed on the inner side of the inner gear ring, the inner gear ring is matched with the electric gear, and a loading mechanism is installed on the inner gear ring. Compared with the prior art, the high-precision test equipment for the electrical performance of the heterojunction battery can simulate rotation and revolution of the earth, and can simulate the four-season environment in the revolution process, so that the electrical performance of the heterojunction battery in different seasons in practical application can be tested, and the high-precision test of the electrical performance of the heterojunction battery is realized; and test data is infinitely close to actual application data.

Description

Technical Field

[0001] The present invention belongs to the technical field of heterojunction batteries, and in particular relates to a high-precision heterojunction battery electrical performance testing device. Background Art

[0002] Heterojunction cells are currently at the forefront of solar cell technology research and have attracted much attention due to their flexible structural design and excellent device performance. Compared with traditional silicon-based single-junction cells, heterojunction cells have higher efficiency, lower cost, smaller size and stronger spectral absorption capabilities. In recent years, heterojunction cell technology has made great progress, and various heterojunction cell structures, such as perovskite solar cells and organic semiconductor solar cells, have shown great application potential. This rapid development has also driven the demand for advanced heterojunction cell testing equipment.

[0003] With the continuous development of heterojunction battery technology, the requirements for accurate testing of battery performance are increasing. There are some devices on the market for testing the electrical performance of heterojunction batteries, but their electrical performance is affected by many factors (such as light intensity, temperature, humidity, etc.). Especially after being put into use, due to the significant differences in ambient temperature, humidity and light intensity in different seasons, heterojunction batteries will show different electrical performance in different seasons. Although the existing testing equipment can change the test environment to test electrical performance, it cannot truly simulate the outdoor environment in different seasons, resulting in a large difference between the test data of the electrical performance of heterojunction batteries and the actual operation data, and low test accuracy.

[0004] Therefore, in view of the above technical problems, it is necessary to provide a high-precision heterojunction battery electrical performance testing device.

[0005] The information disclosed in this background technology section is only intended to enhance the understanding of the overall background of the invention and should not be regarded as an acknowledgment or any form of suggestion that the information constitutes the prior art already known to a person skilled in the art. Summary of the invention

[0006] The purpose of the present invention is to provide a high-precision heterojunction battery electrical performance testing device, which can solve the problem that there is a large difference between the test data of the heterojunction battery electrical performance and the actual operation data, and the test accuracy is low.

[0007] In order to achieve the above object, a technical solution provided by a specific embodiment of the present invention is as follows:

[0008] A high-precision heterojunction battery electrical performance testing device, comprising a base, a light source simulator, four sets of upper covers and an intermediate box;

[0009] A bracket is fixedly mounted on the base;

[0010] An outer ring body is fixedly mounted on the base, an inner gear ring is rotatably mounted inside the outer ring body, an electric gear is mounted on the inner side of the inner gear ring, the inner gear ring matches the electric gear, and a loading mechanism is mounted on the inner gear ring;

[0011] The loading mechanism comprises a rotating plate, a bearing frame and a fixed frame, wherein the fixed frame is fixedly mounted on the inner gear ring, a motor is fixedly mounted on the fixed frame, an output end of the motor is fixed to the rotating plate, the bearing frame is mounted on the rotating plate, and an IV tester is fixedly mounted on the bearing frame;

[0012] The light source simulator is located on the inner side of the inner gear ring;

[0013] The four groups of upper covers are fixedly mounted on the bracket in a circumferentially distributed manner;

[0014] Four groups of conduits are fixedly mounted on the intermediate box, and the four groups of conduits are respectively connected to the inside of four groups of upper covers. The intermediate box is also connected to a temperature regulating mechanism and a humidity regulating mechanism.

[0015] In one or more embodiments of the present invention, a partition is fixedly installed inside the upper cover body, a plurality of blowing holes are opened on the partition, and a cavity is arranged above the partition.

[0016] In one or more embodiments of the present invention, a closed frame is fixedly installed on the outside of the upper cover body, the interior of the closed frame is a hollow structure, a closed opening is provided on the lower end surface of the closed frame, a through hole is provided on the inner side of the closed frame, and the interior of the closed frame is connected with the interior of the cavity through the through hole.

[0017] In one or more embodiments of the present invention, one end of the support frame is rotatably connected to a rotating plate, an electric push rod is rotatably connected to the rotating plate, and a telescopic end of the electric push rod is rotatably connected to the support frame.

[0018] In one or more embodiments of the present invention, a plurality of suction cups are disposed on the support frame.

[0019] In one or more embodiments of the present invention, the temperature adjustment mechanism includes an air conditioner indoor unit, and an air supply pipe is fixedly installed between the air conditioner indoor unit and the intermediate box.

[0020] In one or more embodiments of the present invention, the humidity regulating mechanism includes a water cylinder, which is fixedly mounted above the bracket, a water pump is fixedly mounted on the water cylinder, a branch pipe is fixedly mounted on the output end of the water pump, one end of the branch pipe is connected to the interior of the intermediate box, and an atomizer is fixedly mounted on the branch pipe.

[0021] In one or more embodiments of the present invention, a one-way valve is fixedly installed on the branch pipe.

[0022] In one or more embodiments of the present invention, a temperature sensor and a humidity sensor are fixedly installed inside the intermediate box.

[0023] In one or more embodiments of the present invention, solenoid valves are fixedly mounted on the four groups of conduits.

[0024] Compared with the prior art, the high-precision heterojunction battery electrical performance testing equipment of the present invention can simulate the rotation and revolution of the earth, and can simulate the four-season environment during the revolution, so that it can test the electrical performance of heterojunction batteries in different seasons in actual applications, realize high-precision testing of the electrical performance of heterojunction batteries, and make the test data infinitely close to the actual application data. BRIEF DESCRIPTION OF THE DRAWINGS

[0025] In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments recorded in the present invention. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying creative work.

[0026] Figure 1 The structure of a high-precision heterojunction battery electrical performance testing device in one embodiment of the present invention is shown in FIG. Figure 1 ;

[0027] Figure 2 The structure of a high-precision heterojunction battery electrical performance testing device in one embodiment of the present invention is shown in FIG. Figure 2 ;

[0028] Figure 3 The structure of a loading mechanism of a high-precision heterojunction battery electrical performance testing device in one embodiment of the present invention Figure 1 ;

[0029] Figure 4 The structure of a loading mechanism of a high-precision heterojunction battery electrical performance testing device in one embodiment of the present invention Figure 2 ;

[0030] Figure 5 A high-precision heterojunction battery electrical performance testing device according to an embodiment of the present invention Figure 1 Enlarged view of point A in the middle;

[0031] Figure 6 This is a structural diagram of an upper cover of a high-precision heterojunction battery electrical performance testing device in one embodiment of the present invention;

[0032] Figure 7 This is a cross-sectional view of an upper cover of a high-precision heterojunction battery electrical performance testing device in one embodiment of the present invention.

[0033] Description of main reference numerals:

[0034] 1. Base; 2. Bracket; 3. Outer ring; 4. Inner gear ring; 5. Electric gear; 6. Light source simulator; 7. Loading mechanism; 701. Turntable; 702. Carrying frame; 7021. Suction cup; 703. IV tester; 704. Electric push rod; 705. Fixing frame; 706. Motor; 8. Upper cover; 801. Closed frame; 8011. Closed opening; 8012. Through hole; 802. Partition; 8021. Blowing hole; 803. Cavity; 9. Water cylinder; 10. Conduit; 1001. Solenoid valve; 11. Air pipe; 12. Air conditioner indoor unit; 13. Intermediary box; 14. Water pump; 15. Branch pipe; 1501. One-way valve; 1502. Atomizer. DETAILED DESCRIPTION

[0035] In order to enable those skilled in the art to better understand the technical solutions in the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0036] like Figure 1-Figure 7 As shown, a high-precision heterojunction battery electrical performance testing device in one embodiment of the present invention includes a base 1, a bracket 2, a light source simulator 6, a loading mechanism 7 and four sets of upper covers 8, and the bracket 2 is fixedly installed above the base 1.

[0037] like Figure 1 As shown, an outer ring body 3 is fixedly installed on the top of the base 1, an inner ring gear 4 is rotatably installed inside the outer ring body 3, an electric gear 5 is installed on the inner side of the inner ring gear 4, the inner ring gear 4 is meshingly connected with the electric gear 5, and the electric gear 5 is driven by a motor, which can drive the inner ring gear 4 to rotate.

[0038] like Figure 3 and Figure 4 As shown, a loading mechanism 7 is installed on the inner gear ring 4, and the loading mechanism 7 includes a rotating plate 701, a supporting frame 702 and a fixing frame 705. The fixing frame 705 is fixedly installed on the inner gear ring 4, and a motor 706 is fixedly installed at the middle position of the bottom end of the fixing frame 705. The output end of the motor 706 passes through the top of the fixing frame 705 and is fixed to the rotating plate 701. The motor 706 can drive the rotating plate 701 to rotate.

[0039] One end of the support frame 702 is rotatably mounted on the rotating plate 701 , and the support frame 702 is used to place the heterojunction battery to be tested.

[0040] Preferably, a plurality of suction cups 7021 are provided on the support frame 702, and the plurality of suction cups 7021 are used to absorb and fix the heterojunction battery to prevent it from shaking during the test process.

[0041] An IV tester 703 is fixedly mounted on the support frame 702 , and the IV tester 703 evaluates the electrical performance of the heterojunction battery by measuring the current and voltage characteristics of the heterojunction battery.

[0042] The light source simulator 6 is located inside the inner gear ring 4 and fixed to the top of the base 1. The light source simulator 6 can simulate solar radiation. The light source simulator 6 can control its power by frequency conversion so as to test the electrical performance of the heterojunction battery under different lighting conditions.

[0043] Specifically, during the test, the heterojunction battery is placed and fixed on the support frame 702, and after establishing a connection with the IV tester 703 through a wire, the light source simulator 6 is started, and the light source simulator 6 simulates solar radiation so that the heterojunction battery converts light energy into electrical energy and generates current. The current and voltage are tested simultaneously by the IV tester 703, and the electrical performance of the heterojunction battery is evaluated based on the current and voltage. During the test, the motor 706 is started to drive the rotating plate 701 to rotate, so that the heterojunction battery rotates to simulate the rotation of the earth and change the illumination angle in the horizontal direction.

[0044] At the same time, the inner gear ring 4 can be driven to rotate by the electric gear 5, so that the loading mechanism 7 as a whole rotates around the light source simulator 6, that is, simulating the revolution of the earth.

[0045] In addition, the top of the rotating plate 701 is rotatably connected to an electric push rod 704, and the telescopic end of the electric push rod 704 is rotatably connected to the support frame 702. The electric push rod 704 can drive the support frame 702 to rotate in the vertical direction to change the illumination angle in the vertical direction. It is worth noting that the electric push rod 704 can drive the support frame 702 to rotate in the vertical direction, so that the support frame 702 can be in a vertical state, so as to test the electrical performance of the vertical heterojunction battery, and also realize the measurement of the electrical performance of the heterojunction battery sheet under vertical laying.

[0046] In summary, this device can truly simulate the rotation and revolution of the earth during the test, making the electrical performance test of the heterojunction battery more suitable for actual use and enhancing the authenticity of the test; and it can also vertically adjust the lighting angle, which is more flexible and enhances adaptability.

[0047] like Figure 1 and Figure 2As shown, four groups of upper covers 8 are fixedly installed on the bracket 2 in a circumferentially distributed manner. The four groups of upper covers 8 are all located above the loading mechanism 7. When the loading mechanism 7 rotates around the light source simulator 6, it will pass under the four groups of upper covers 8 in sequence.

[0048] An intermediate box 13 is arranged above the bracket 2, and the top and bottom ends of the intermediate box 13 are respectively connected to a temperature regulating mechanism and a humidity regulating mechanism. The temperature regulating mechanism includes an air conditioner indoor unit 12, and an air supply pipe 11 is fixedly installed between the air conditioner indoor unit 12 and the intermediate box 13, and the air conditioner indoor unit 12 can inject air of different temperatures into the intermediate box 13 through the air supply pipe 11.

[0049] like Figure 1 and Figure 5 As shown, the humidity adjustment mechanism includes a water cylinder 9, which is fixedly mounted above the bracket 2. A certain amount of water is stored in the water cylinder 9. A water pump 14 is fixedly mounted on the top of the water cylinder 9. The input end of the water pump 14 is inserted into the water cylinder 9 to extract the water in the water cylinder 9. A branch pipe 15 is fixedly mounted on the output end of the water pump 14. One end of the branch pipe 15 is connected to the inside of the intermediate box 13. An atomizer 1502 is fixedly mounted on the branch pipe 15. The atomizer 1502 can atomize the water extracted by the water pump 14 to form water mist. The water mist enters the inside of the intermediate box 13 and combines with the air supplied by the air conditioner indoor unit 12 to form air with the required temperature and humidity.

[0050] A temperature sensor and a humidity sensor (not shown in the figure) are fixedly installed inside the intermediate box 13 for real-time detection of the temperature and humidity of the air inside the intermediate box 13 so as to control and adjust the temperature and humidity of the air.

[0051] A one-way valve 1501 is also fixedly installed on the branch pipe 15, and the one-way valve 1501 prevents the water mist from flowing back, ensuring that the water mist can enter the interior of the intermediate box 13 and mix with the air, thereby ensuring the reliability of the overall operation.

[0052] Four groups of ducts 10 are fixedly installed on the side wall of the intermediate box 13, and the four groups of ducts 10 are respectively connected to the interior of the four groups of upper covers 8. The four groups of ducts 10 can supply gases with different temperatures and humidities to the four groups of upper covers 8 respectively, so as to create temperature and humidity environments in different seasons of the year through the four groups of upper covers 8.

[0053] The four groups of conduits 10 are all fixedly mounted with electromagnetic valves 1001 , which are used to control the on-off of each conduit 10 , thereby controlling the supply of gas inside the corresponding upper cover body 8 .

[0054] like Figure 6 and Figure 7As shown, a partition 802 is fixedly installed inside the upper cover body 8, and a plurality of blowing holes 8021 are opened on the partition 802. A cavity 803 is arranged above the partition 802. The gas first enters the cavity 803, and then is evenly blown downward through the plurality of blowing holes 8021, thereby creating a gas environment with corresponding temperature and humidity.

[0055] A closed frame 801 is fixedly installed on the outside of the upper cover body 8. The interior of the closed frame 801 is a hollow structure. A through hole 8012 is opened on the inner side of the closed frame 801. The interior of the closed frame 801 is connected with the interior of the cavity 803 through the through hole 8012. In addition to being evenly blown downward through a number of blowing holes 8021, a part of the gas entering the cavity 803 also enters the interior of the closed frame 801 through the through hole 8012.

[0056] The lower end surface of the closed frame 801 is provided with a closed opening 8011, and the gas can be blown out through the closed opening 8011 after entering the closed frame 801. Since the closed opening 8011 is closed on all sides, a closed air curtain can be blown out through the closed opening 8011 to isolate the outside air, thereby making the gas environment of the corresponding temperature and humidity relatively stable.

[0057] In the process of blowing out the air with corresponding temperature and humidity of the four seasons through the upper cover body 8, the closed opening 8011 will first form an isolation air curtain, and then blow air from the inside of the air curtain to the heterojunction battery below through a plurality of blowing holes 8021, so that the heterojunction battery on the carrier 702 is in an environment with stable temperature and humidity, and then by changing the power of the light source simulator 6 to control the light intensity, the environmental conditions such as temperature, humidity and light intensity of the four seasons of the year can be simulated in turn during the test process, so as to test the electrical performance of the heterojunction battery during actual use.

[0058] Specifically, since the earth's revolution will form four seasons, the environment of each season is different, and the main factors affecting the electrical performance of the heterojunction battery are temperature, humidity and light intensity. By sequentially forming air with corresponding temperature and humidity of the four seasons inside the intermediate box 13, and then blowing it out through the four sets of upper covers 8 in sequence, so that the heterojunction battery is sequentially placed in the environment of corresponding temperature, humidity and light intensity of the four seasons during the revolution, the electrical performance of the heterojunction battery in different seasons can be tested by simulating the four seasons environment, which greatly improves the authenticity of the electrical performance test of the heterojunction battery, and realizes high-precision testing, so as to obtain more practical test data.

[0059] When in use, the heterojunction battery is placed and fixed on the carrier 702, and after establishing a connection with the IV tester 703 through a wire, the light source simulator 6 is started, and the solar radiation is simulated by the light source simulator 6, so that the heterojunction battery converts light energy into electrical energy and generates current, and the current and voltage are tested simultaneously by the IV tester 703, and the electrical performance of the heterojunction battery is evaluated according to the current and voltage. During the test, the motor 706 is started to drive the rotating plate 701 to rotate, so that the heterojunction battery rotates to simulate the rotation of the earth and change the illumination angle in the horizontal direction. At the same time, the inner gear ring 4 can be driven to rotate by the electric gear 5, so that the loading mechanism 7 rotates around the light source simulator 6 as a whole, that is, simulating the revolution of the earth. During the revolution, the air with corresponding temperature and humidity of the four seasons is blown out in sequence through the four groups of upper covers 8, and the corresponding light intensity is adjusted, so that the heterojunction battery is in the environment of corresponding temperature and humidity and light intensity of the four seasons in sequence, thereby realizing the simulation of the four seasons environment to test the electrical performance of the heterojunction battery in different seasons.

[0060] Compared with the prior art, the high-precision heterojunction battery electrical performance testing equipment of the present invention can simulate the rotation and revolution of the earth, and can simulate the four-season environment during the revolution, so that it can test the electrical performance of heterojunction batteries in different seasons in actual applications, realize high-precision testing of the electrical performance of heterojunction batteries, and make the test data infinitely close to the actual application data.

[0061] It will be apparent to those skilled in the art that the invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0062] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

1. A high-precision heterojunction battery electrical performance testing device, characterized in that: include: A base, on which a bracket is fixedly mounted; An outer ring body is fixedly mounted on the base, an inner gear ring is rotatably mounted inside the outer ring body, an electric gear is mounted on the inner side of the inner gear ring, the inner gear ring matches the electric gear, and a loading mechanism is mounted on the inner gear ring; The loading mechanism comprises a rotating plate, a bearing frame and a fixed frame, wherein the fixed frame is fixedly mounted on the inner gear ring, a motor is fixedly mounted on the fixed frame, an output end of the motor is fixed to the rotating plate, the bearing frame is mounted on the rotating plate, and an IV tester is fixedly mounted on the bearing frame; A light source simulator, wherein the light source simulator is located inside the inner gear ring; Four groups of upper covers, the four groups of upper covers are distributed in a circumference and fixedly installed on a bracket; An intermediate box is provided with four groups of conduits fixedly mounted thereon, the four groups of conduits being respectively connected to the inside of four groups of upper covers, and the intermediate box is also connected with a temperature regulating mechanism and a humidity regulating mechanism.

2. A high-precision heterojunction battery electrical performance testing device according to claim 1, characterized in that: A partition is fixedly installed inside the upper cover body, a plurality of blowing holes are opened on the partition, and a cavity is arranged above the partition.

3. A high-precision heterojunction battery electrical performance testing device according to claim 2, characterized in that: A closed frame is fixedly mounted on the outside of the upper cover body, the inside of the closed frame is a hollow structure, a closed opening is provided on the lower end surface of the closed frame, a through hole is provided on the inner side of the closed frame, and the inside of the closed frame is connected with the inside of the cavity through the through hole.

4. The high-precision heterojunction battery electrical performance testing device according to claim 1, characterized in that: One end of the support frame is rotatably connected to a rotating plate, an electric push rod is rotatably connected to the rotating plate, and a telescopic end of the electric push rod is rotatably connected to the support frame.

5. A high-precision heterojunction battery electrical performance testing device according to claim 4, characterized in that: A plurality of suction cups are arranged on the bearing frame.

6. The high-precision heterojunction battery electrical performance testing device according to claim 1, characterized in that: The temperature regulating mechanism comprises an air conditioner indoor unit, and an air supply pipe is fixedly installed between the air conditioner indoor unit and the intermediate box.

7. A high-precision heterojunction battery electrical performance testing device according to claim 6, characterized in that: The humidity regulating mechanism comprises a water cylinder, which is fixedly mounted above the bracket, on which a water pump is fixedly mounted, on which an output end of the water pump is fixedly mounted a branch pipe, one end of which is connected to the interior of the intermediate box, and on which an atomizer is fixedly mounted.

8. The high-precision heterojunction battery electrical performance testing device according to claim 7, characterized in that: A one-way valve is also fixedly installed on the branch pipe.

9. A high-precision heterojunction battery electrical performance testing device according to claim 8, characterized in that: A temperature sensor and a humidity sensor are fixedly installed inside the intermediate box.

10. The high-precision heterojunction battery electrical performance testing device according to claim 1, characterized in that: Solenoid valves are fixedly installed on the four groups of conduits.

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