CN216485412U - Testing device for solar cell - Google Patents
Testing device for solar cell Download PDFInfo
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- CN216485412U CN216485412U CN202122471894.0U CN202122471894U CN216485412U CN 216485412 U CN216485412 U CN 216485412U CN 202122471894 U CN202122471894 U CN 202122471894U CN 216485412 U CN216485412 U CN 216485412U
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01R—MEASURING ELECTRIC VARIABLES; MEASURING MAGNETIC VARIABLES
- G01R31/00—Arrangements for testing electric properties; Arrangements for locating electric faults; Arrangements for electrical testing characterised by what is being tested not provided for elsewhere
- G01R31/36—Arrangements for testing, measuring or monitoring the electrical condition of accumulators or electric batteries, e.g. capacity or state of charge [SoC]
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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 provides a testing device of a solar cell, which comprises: the device comprises a test platform, a light source, a pressing platform and a plurality of test probes; the test platform is used for supporting a battery piece to be tested, a plurality of first through holes are formed in the test platform, one test probe corresponds to one first through hole, and each test probe penetrates through the corresponding first through hole to be in contact with the battery piece to be tested; the pressing platform is of a light-transmitting structure and is positioned on the surface of the battery piece to be tested, which is far away from the testing platform; one side of the pressing platform far away from the test platform is provided with a light source, or one side of the pressing platform far away from the test platform and one side of the test platform far away from the pressing platform are respectively provided with a light source, and the pressing platform is used for pressing down the battery piece to be tested so as to attach the battery piece to be tested on the test platform. This embodiment has increased and has pushed down the platform, pushes down the platform and pushes down the battery piece that awaits measuring, can offset the ascending effort of some test probes at least to make the battery piece that awaits measuring can attach on test platform better.
Description
Technical Field
The utility model relates to the field of solar cells, in particular to a solar cell testing device.
Background
At present, a solar module is generally composed of a plurality of solar cells to obtain higher power generation. The performance of the single solar cell pieces packaged in the same solar module is relatively close, otherwise the overall performance of the solar module is negatively influenced. Therefore, before the solar module is packaged, a performance test must be performed on each solar cell, so that the solar cells are classified into different grades, and the solar cells in the same grade are packaged into the solar module.
The front surface of the back contact solar cell (called a cell for short) is not provided with the main grid line, and the welding positions of the anode and the cathode of the back contact solar cell are positioned on the same surface of the cell, so that the shading of the cell is reduced, and the conversion efficiency of the cell is improved, therefore, the back contact solar cell is widely applied. Similarly, to assemble a plurality of back contact solar cells into a solar module, performance testing of individual cells is also required.
In the prior art, the performance of a single cell is tested by a testing device of a back contact solar cell. However, in the existing testing device, the supporting platform downwardly adsorbs the battery piece, and the testing probe upwardly pushes the battery piece, so that a part of adsorption force is offset, and there may be incomplete contact between the testing probe and the electrode of the battery piece, which affects the testing accuracy.
SUMMERY OF THE UTILITY MODEL
The embodiment of the utility model provides a testing device for a solar cell, which aims to solve the technical problem of lower testing accuracy caused by incomplete contact of a testing probe and an electrode of the solar cell in the testing device for a back contact solar cell in the related technology.
In order to solve the technical problem, the utility model is realized as follows:
the embodiment of the utility model provides a testing device for a solar cell, which comprises: the device comprises a test platform, a light source, a pressing platform and a plurality of test probes;
the test platform is used for supporting a battery piece to be tested, a plurality of first through holes are formed in the test platform, one test probe corresponds to one first through hole, and each test probe penetrates through the corresponding first through hole to be in contact with the battery piece to be tested;
the pressing platform is of a light-transmitting structure and is positioned on the surface of the battery piece to be tested, which is far away from the testing platform;
the utility model discloses a battery piece that awaits measuring, including test platform, push down the platform and keep away from one side of test platform is equipped with the light source, perhaps, push down the platform and keep away from one side of test platform with one side of push down the platform is equipped with respectively the light source, push down the platform and be used for pushing down the battery piece that awaits measuring, so that the battery piece that awaits measuring is attached in on the test platform.
In the embodiment of the utility model, the testing device for the solar cell has the following advantages:
compared with the existing testing device, the device has the advantages that the pressing platform is additionally arranged and is positioned on the surface, away from the testing platform, of the battery piece to be tested, and the pressing platform is used for pressing down the battery piece to be tested.
Drawings
Fig. 1 is a schematic diagram of a testing apparatus for a solar cell according to an embodiment of the present invention, wherein a light source is disposed on one side of a testing platform;
fig. 2 is a second schematic diagram of a testing apparatus for solar cells according to an embodiment of the present invention, wherein light sources are disposed on two sides of a testing platform;
fig. 3 is a schematic view illustrating a viewing angle of a pressing platform in a solar cell testing apparatus according to an embodiment of the present invention.
Reference numerals:
10: a test platform; 11: a first through hole; 20: pressing the platform; 21: a second through hole; 22: taking the mouth; 30: testing the probe; 40: a battery piece to be tested; 50-a light source; 60-standard cell piece.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are some, not all, embodiments of the present invention. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
It should be appreciated that reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present invention. Thus, the appearances of the phrases "in one embodiment" or "in an embodiment" in various places throughout this specification are not necessarily all referring to the same embodiment. Furthermore, the particular features, structures, or characteristics may be combined in any suitable manner in one or more embodiments.
In an embodiment of the present invention, a testing apparatus (simply referred to as a testing apparatus) for a solar cell is provided, and referring to fig. 1 and fig. 2, the testing apparatus may specifically include: a test platform 10, a light source 50, a press-down platform 20 and a plurality of test probes 30; the testing platform 10 is used for supporting a battery piece 40 to be tested, a plurality of first through holes 11 are arranged on the testing platform 10, one testing probe 30 corresponds to one first through hole 11, and each testing probe 30 is respectively arranged through the corresponding first through hole 11 to be contacted with the battery piece 40 to be tested; the pressing platform 20 is a light-transmitting structure and is located on the surface of the battery piece 40 to be tested, which is far away from the testing platform 10; the light source 50 is disposed on one side of the pressing platform 20 away from the testing platform 10, or the light source 50 is disposed on one side of the pressing platform 20 away from the testing platform 10 and one side of the testing platform 10 away from the pressing platform 20, respectively, and the pressing platform 20 is configured to press down the battery piece 40 to be tested, so that the battery piece 40 to be tested is attached to the testing platform 10.
Specifically, the testing platform 10 is used to support a battery piece 40 to be tested, as shown in fig. 1 and fig. 2, and with the illustrated orientation as a reference, the battery piece 40 to be tested is placed above the testing platform 10, and the battery piece 40 to be tested of the pressing platform 20 is far away from the surface of the testing platform 10, that is, the pressing platform 20 is located above the battery piece 40 to be tested. The pressing platform 20 is used for pressing down the battery piece 40 to be tested, that is, the pressing platform 20 applies a downward acting force to the battery piece 40 to be tested.
Specifically, the cell 40 to be tested in this embodiment may be a back contact solar cell, and the welding positions of the positive and negative electrodes of the back contact solar cell are located on the same side of the back contact solar cell. As shown in fig. 1 and fig. 2, the welding positions of the positive electrode and the negative electrode of the battery piece to be tested 40 of the embodiment are located on the lower surface of the battery piece to be tested 40, and therefore, the test probe 30 is located below the battery piece to be tested 40.
Specifically, the test platform 10 is provided with a plurality of first through holes 11, the plurality of first through holes 11 are arranged at intervals, one test probe 30 corresponds to one first through hole 11, each test probe 30 respectively penetrates through the corresponding first through hole 11 to be in contact with the battery piece 40 to be tested, and after the contact, each test probe 30 can be electrically conducted with the battery piece 40 to be tested, so that the performance of the battery piece 40 to be tested is detected.
In practice, the test probe 30 may be biased or not well contacted, which may degrade the accuracy of the test. Compared with the prior art, although the test probe 30 pushes up the battery piece on the side of the belt, because the downward acting force can be applied to the battery piece 40 to be tested by the pressing platform 20 of the embodiment, it can at least offset part of the upward acting force of the test probe 30, so that the battery piece 40 to be tested can be better attached to the test platform 10, and the test accuracy is improved.
Specifically, the light source 50 irradiates light to the cell 40 to be tested to simulate sunlight, so that the test probe 30 tests the performance of the cell 40 to be tested when receiving light. The light source 50 is disposed on one side of the pressing platform 20 away from the testing platform 10, that is, the light source 50 is disposed above the pressing platform 20, or the light source 50 is disposed on one side of the pressing platform 20 away from the testing platform 10 and one side of the testing platform 10 away from the pressing platform 20, that is, the light source 50 is disposed above the pressing platform 20 and below the testing platform 10. It can be seen that, in this embodiment, the light source 50 may be disposed on the upper side or both the upper and lower sides of the test platform 10, and if the light source 50 is located on the upper side of the test platform 10, the performance of the upper surface of the battery piece 40 to be tested when receiving light is tested; if the light sources 50 are disposed on both sides of the testing platform 10, the performance of the battery piece 40 under test when the upper surface and the lower surface are illuminated can be tested. Whether the light source 50 is disposed on one side or both sides of the testing platform 10 may be set according to actual requirements, and the present embodiment does not limit this.
Specifically, in order to not affect the light receiving of the cell 40 to be tested and to make the testing accuracy better, the pressing platform 20 of the present embodiment is a light-transmitting structure, and is selected from light-transmitting materials with a light transmittance of 90% or more, preferably 95% or more, for example: the platen 20 may be a quartz material or other transparent material with a light transmittance of 90% or more. Other light-transmitting materials can be selected from glass materials with light transmittance of more than or equal to 90 percent; an organic polymer material having a light transmittance of 90% or more, for example, any one of polymethyl methacrylate (pmma), Polystyrene (PS), Polycarbonate (PC), and polybisallyldiglycol carbonate (polybisallyl diglycol carbonate).
Specifically, the material of the test platform 10 is related to the location where the light source 50 is disposed. If the light source 50 is disposed on both sides of the testing platform 10, the testing platform 10 is made of a light-transmitting material, and the light-transmitting material has a good transmittance to light with a wavelength of 300-1100 nm, and any light-transmitting material satisfying the above condition can be used, and in the material types of the pressing platform 20, a light-transmitting material with a transmittance of 90% or more can be selected, and specifically, the light-transmitting material can be the same as or different from the material type of the pressing platform 20; but is preferably the same type of material as the hold-down platform 20 to facilitate overall test result evaluation. If the light source 50 is disposed only above the test platform 10, the material of the test platform 10 may be a non-light-transmitting material, such as an aircraft aluminum material or other materials that can be used in a scenario for testing the performance of a solar cell.
In the embodiment of the present invention, the testing apparatus for a solar cell further includes: a vacuum adsorption member; the test platform 10 is provided with an adsorption hole, the vacuum adsorption piece is connected with the adsorption hole, and the vacuum adsorption piece is used for pumping out the gas in the adsorption hole so that the battery piece 40 to be tested is adsorbed on the test platform 10.
Particularly, test platform 10 is equipped with the adsorption hole, and the connecting pipe and the adsorption hole intercommunication of vacuum adsorption piece take out gas in the adsorption hole for test platform 10 has vacuum adsorption ability, thereby can adsorb the battery piece 40 that awaits measuring in test platform 10's upper surface, and then improves the accuracy of test. The vacuum adsorption part can be a vacuum pump or other parts with the same function as the vacuum pump.
In the embodiment of the utility model, the adsorption holes comprise a plurality of first adsorption holes and second adsorption holes which are arranged at intervals; in the vertical direction, the testing platform 10 includes a first surface and a second surface opposite to each other, the first surface is close to the pressing platform 20, and each first adsorption hole penetrates through the second surface from the first surface; the second adsorption hole runs through another lateral wall from a lateral wall of test platform 10, and a lateral wall is relative with another lateral wall, and a second adsorption hole corresponds a first adsorption hole, and each second adsorption hole communicates with the first adsorption hole that corresponds respectively, and is connected with the vacuum adsorption piece respectively.
Specifically, the first suction holes are arranged at intervals, and since the battery piece 40 to be tested is generally a cube, the shape of the test platform 10 generally matches with the shape of the battery piece 40 to be tested, and is also a cube. In the vertical direction, the test platform 10 includes a first surface (an upper surface as shown) and a second surface (a lower surface as shown) which are opposite to each other, and each of the first adsorption holes penetrates through the lower surface from the upper surface. The second adsorption holes may penetrate through one sidewall of the test platform 10 from the other sidewall, and one sidewall is opposite to the other sidewall, for example, the test platform 10 may include four sidewalls, a left sidewall, a right sidewall, a front sidewall and a rear sidewall, where the left sidewall and the right sidewall are opposite, the front sidewall is opposite to the rear sidewall, a part of the second adsorption holes may penetrate through the right sidewall from the left sidewall, and a part of the second adsorption holes may penetrate through the rear sidewall from the front sidewall.
Specifically, one second adsorption hole corresponds to one first adsorption hole, and each second adsorption hole is communicated with the corresponding first adsorption hole. In practice, the vacuum adsorption member may include a plurality of communicating pipes, and one communicating pipe is communicated with one second adsorption hole, so that the vacuum adsorption member sequentially draws out the vacuum in the second adsorption hole and the first adsorption hole, so that the test platform 10 has a vacuum adsorption capacity. The present embodiment is configured in such a way, so as to avoid that the connection pipe, if connected from the upper side or the lower side of the testing platform 10, affects the adhesion of the to-be-tested battery piece 40 to the testing platform 10 and the light receiving area of the to-be-tested battery piece 40, thereby affecting the testing accuracy.
Preferably, at least one first adsorption hole is generally and respectively arranged in four corner areas of the test platform 10 opposite to the battery piece 40 to be tested, and the second adsorption hole is arranged near the first adsorption hole, so that a communication channel between the second adsorption hole and the first adsorption hole is short, vacuum in the second adsorption hole and the first adsorption hole can be conveniently and quickly pumped out through a vacuum adsorption piece, time can be saved, and production cost can be saved; moreover, the four corner regions of the battery piece 40 to be tested are adsorbed on the test platform 10, so that the position of the battery piece 40 to be tested is more stable.
In the embodiment of the present invention, referring to fig. 3, in the vertical direction, the lower platen 20 is provided with a plurality of second through holes 21; the plurality of second through holes 21 are arranged at intervals, each second through hole 21 is connected with a vacuum adsorption piece, and the vacuum adsorption pieces are further used for blowing air into each second through hole 21, so that the battery piece 40 to be tested is adsorbed on the test platform 10, or the battery piece 40 to be tested is helped to be separated from the test platform 10.
Specifically, the second through holes 21 are provided at intervals, and penetrate the lower surface of the platen 20 from the upper surface thereof. Under the test condition, one connecting pipe of the vacuum adsorption part is communicated with one second through hole 21 and blows air into each second through hole 21, and the air pressure is positive pressure so as to form downward acting force on the battery piece 40 to be tested and at least offset upward acting force of part of the test probes 30, so that the battery piece 40 to be tested can be attached to the test platform 10 better, and the test accuracy is improved.
In the prior art, after the test is completed, the test platform 10 and the test probes 30 need to be removed at the same time, and when the test platform 10 is removed, the battery piece 40 to be tested is removed along with the test platform 10, so that the phenomenon of piece sticking occurs. The strip phenomenon refers to that negative pressure is formed by extruding air between the contact surfaces of the battery piece 40 to be tested and the test platform 10 during testing, when the test platform 10 and the test probe 30 are moved away simultaneously after testing is completed, the vacuum adsorption of the test platform 10 is difficult to rapidly pull the battery piece 40 to be tested away from the test platform 10, generally, the test probe 30 can only be moved firstly, after certain gas is naturally filled between the battery piece 40 and the test platform 10, the test platform 10 is moved, so that the testing accuracy can be ensured, but the testing speed is reduced. In this embodiment, after the test is completed, the vacuum absorption member still blows air into the second through hole 21 to fill air between the battery piece 40 to be tested and the test platform 10, so that the battery piece 40 to be tested can be quickly pulled away from the test platform 10, the waiting time is very short, at least about 2.5S can be shortened to 1-1.3S in the prior art, the phenomenon of carrying the battery piece by the test platform 10 is avoided, and the fragment rate is effectively reduced.
Specifically, the push platform 20 is generally rectangular parallelepiped. For example, as shown in fig. 3, the second through holes 21 are respectively disposed at positions of the pressing platform 20 opposite to four corner regions of the cell 40 to be tested, so that the connection pipes of the vacuum absorption member can be conveniently communicated, and the light received by the working region of the cell 40 to be tested can be prevented from being blocked. Of course, the specific arrangement positions of the plurality of second through holes 21 are not limited to the above examples, for example: the pressing platform 20 is provided with second through holes 21 at positions opposite to four corner regions of the battery piece 40 to be tested, and also can be provided with second through holes 21 at positions opposite to the center region of the pressing platform 20 and the battery piece 40 to be tested; or, a second through hole 21 is arranged at a position of the lower flattening table 20 opposite to the central area of the battery piece 40 to be tested, second through holes 21 are respectively arranged at positions opposite to each diagonal line of the battery piece 40 to be tested, and two second through holes 21 are symmetrically arranged at positions opposite to each diagonal line; or, the second through holes 21 are arranged at the positions of the lower pressing platform 20 opposite to the central area of the battery piece 40 to be tested, the center of the second through hole 21 is the center of a circle, three, four, five, six, eight and the like second through holes 21 are arranged around the center of a circle, the specific numerical value of the distance (which can be understood as the radius) between the center of a circle and the second through holes 21 is not limited, and the specific numerical value can be set according to the actual situation, wherein the number of the surrounding second through holes 21 is four or eight, which is the preferred scheme, so that the battery piece 40 to be tested can be subjected to more balanced downward acting force, and the battery piece 40 to be tested can be better attached to the upper surface of the testing platform 10. The specific arrangement position and number of the plurality of second through holes 21 are not limited in this embodiment, and may be specifically set according to actual situations.
In the embodiment of the utility model, the lower pressing platform 20 is provided with the taking port 22, and the taking port 22 is used for taking the battery piece 40 to be tested.
Specifically, be equipped with at least one and take mouthful 22 on the platform 20 that pushes down, take mouthful 22 vertical setting, and from the upper surface of platform 20 that pushes down the lower surface of running through. When the testing device is abnormal, such as downtime, the battery piece 40 to be tested can be taken out from the taking port 22 manually, and the weight of the pressing platform 20 can be reduced, so that the device is convenient to mount and carry.
Illustratively, as shown in fig. 3, the shape of the orthographic projection of the push-down stage 20 on the test stage 10 is rectangular. The downward pressing platform 20 is provided with four taking ports 22, the center of the downward pressing platform 20 relative to the battery piece 40 to be tested is used as a reference, the four taking ports 22 are arranged around the center, one taking port 22 corresponds to and is close to the edge of one rectangle, in the figure, the distances between the taking ports 22 and the corresponding changes can be completely equal or not completely equal, and the distance between the left taking port 22 and the left side of the rectangle in the figure is not equal to the distance between the right taking port 22 and the right side of the rectangle. In the figure, four taking ports 22 are provided, and a person can firstly separate the four corner regions of the battery piece 40 to be tested from the four taking ports 22 and then take out the battery piece 40 to be tested from one of the taking ports 22, so as to ensure the integrity of the battery piece 40 to be tested. It should be noted that the specific number and the specific positions of the access ports 22 are not limited in this embodiment, and may be set according to actual situations, and are not limited to the illustrated structure.
As shown in fig. 3, the pressing platform 20 is provided with second through holes 21 at positions opposite to four corner regions of the battery piece 40 to be tested, and the pressing platform 20 is provided with second through holes 21 at the corner regions between two adjacent taking ports 22. In practical application, the length of the taking port 22 is greater than the distance between the two second through holes 21 on the same side, so that the battery piece 40 to be tested can be taken out from the taking port 22 while blowing air to the four corner areas of the battery piece 40 to be tested through the second through holes 21.
In the embodiment of the present invention, the testing apparatus for a solar cell further includes: the testing device of the solar cell further comprises: the device comprises a machine table, a bracket and a fixing frame; the bracket is fixed on the machine table, and the light source 50 is arranged on the bracket; the plurality of test probes 30 are fixed on a fixing frame, and the fixing frame is connected to the machine table in a sliding mode along the vertical direction.
Specifically, the support can be fixed on the machine table through welding, fastener connection and other modes. The light source 50 may be removably mounted to the bracket to facilitate mounting of the removable light source 50. A plurality of test needles can be fixed in on the mount, and the mount can be followed vertical direction (upper and lower direction) and connected in the board with sliding. For example, the board includes two risers, and the mount sets up between two risers, on test platform 10's length direction (the left and right sides of figure), the one end of mount is equipped with first slider, and the other end of mount is equipped with the second slider, and a riser is close to the mount be equipped with first spout on the surface, and another riser is close to the mount be equipped with the second spout on the surface, and two spouts set up along vertical direction, and first slider slides and sets up in first spout, and the second slider slides and sets up in the second spout. The two sliding devices respectively slide up and down in the corresponding sliding grooves to drive the fixing frame to slide up and down, so as to drive the test probe 30 to slide up and down, that is, the test probe 30 can be close to or far away from the lower surface of the battery piece 40 to be tested. It should be noted that, for the implementation manner that the fixing frame is slidably connected to the machine, in addition to the above examples, other manners may also be adopted: for example: the matching between the sliding rail and the roller is not limited in this embodiment, and the setting can be specifically performed according to the actual situation.
In an embodiment of the present invention, the apparatus for testing a solar cell further includes: the device comprises a positioning piece, a control system and a first driving assembly; each test probe 30 is connected with the control system, and the control system is further used for acquiring the electrical parameters of the battery piece 40 to be tested, which are detected by the test probes 30; the positioning piece is arranged on the bracket and used for collecting positioning information of the battery piece 40 to be detected, and the first driving assembly is connected with the fixed frame; the control system is electrically connected with the positioning element and the driving assembly respectively, and is further used for controlling the first driving assembly to drive the fixing frame to move or rotate according to the acquired positioning information of the battery piece 40 to be tested so as to adjust the position of the test probe 30.
Specifically, after the battery sheet 40 to be tested is irradiated by the light source 50, a first electrical parameter is generated, and the control system can calculate the performance parameter of the battery sheet 40 to be tested according to the first electrical parameter (current, voltage, etc.) acquired in real time.
In practical application, in order to detect whether the performance parameters of the battery piece 40 to be tested meet the requirements, the testing apparatus of this embodiment further includes: the standard cell 60, the standard cell 60 is used for calibrating the irradiation intensity of the light source 50. Specifically, the standard cell 60 is attached to the upper surface of the testing platform 10, the standard cell 60 generates a second electrical parameter after being irradiated by the light source 50, the control system is further connected to the standard cell 60 and the light source 50 to obtain the second electrical parameter, so as to calculate a performance parameter (for example, an electric quantity) of the standard cell 60, and determine whether the electric quantity reaches a preset value, if not, it indicates that the irradiation intensity of the light source 50 is insufficient, and the control system needs to adjust the irradiation illumination of the light source 50 until the electric quantity of the standard cell 60 reaches the preset value; after the irradiation intensity of the light source 50 is adjusted, the control system calculates performance parameters (for example, electric quantity, power, and the like) of the battery piece 40 to be measured according to the acquired first electrical parameter, compares the performance parameters with a preset performance parameter range, and determines whether the calculated performance parameters of the battery piece 40 to be measured are within a preset performance parameter range (for example, a preset electric quantity range, a preset power range, and the like), if so, the battery piece 40 to be measured meets the requirements, and if not, the battery piece 40 to be measured does not meet the requirements.
It should be noted that the standard cell 60 may be a double-sided light receiving cell or a single-sided light receiving cell, if the light source 50 is only disposed above the test platform 10, the standard cell 60 is a single-sided light receiving cell, and if the light sources 50 are disposed above and below the test platform 10, the standard cell 60 is a double-sided light receiving cell.
In particular, the positioning element may be an optical positioning Device, such as a camera, typically a CCD (Charge-coupled Device) camera. The camera can capture the positioning information (laser mark) information on the battery piece 40 to be detected and send the information to the control system; the control system calculates the position information of the battery piece to be tested 40 after analysis according to the acquired positioning information, if the position information is not matched with the preset position information, the first driving assembly is controlled to drive the fixing frame to move or rotate until the fixing frame is matched with the preset position information, at the moment, the test probes 30 are located at preset target positions, at the preset target positions, the test probes 30 are respectively in contact with the positive electrode or the negative electrode corresponding to the battery piece to be tested 40, the process is to finely adjust the test probes 30, and the main purpose is to correct the positions of the test probes 30 so as to improve the testing accuracy. The position information may include information such as the area of the surface of the battery to be tested, the number of electrodes, the distance between adjacent electrodes, and the displacement of the battery piece 40 to be tested relative to the test platform 10, the laser mark on the battery piece 40 to be tested may adopt different marks to mark the center, the edge line, the welding positions of the anode and the cathode of the battery piece 40 to be tested, and the control system prestores in advance the corresponding relationship between information and reference points corresponding to the different marks and calculates the position information of the battery piece 40 to be tested.
For example, the first driving assembly may include two first linear motors, the two first linear motors are respectively fixed to the machine table, one first linear motor is connected to one end of the fixing frame, the other first linear motor is connected to the other end of the fixing frame, and the two first linear motors simultaneously drive the end portions of the fixing frame to move, so as to drive the fixing frame to move. The test apparatus may further include: the first rotating table, the first drive assembly also include the first rotating electrical machines; the first rotating table can be rotatably arranged on the machine table, a first rotating shaft can be arranged on the machine table, the first rotating table can be fixedly sleeved on the first rotating shaft, and the lower ends of the two vertical plates are fixed on the first rotating table; the first rotating motor is connected with the control system and the first rotating shaft respectively, and the control system can drive the first rotating motor to drive the first rotating shaft to rotate and drive the first rotating shaft to rotate, so that the fixing frame is driven to rotate, and the test probe 30 is driven to rotate. The two first linear motors can also be respectively fixed on the two vertical plates, and the specific setting positions of the first linear motors can be set according to actual conditions without limitation in the embodiment.
It should be noted that the two first linear motors may be replaced by a rotating motor and a transmission mechanism, and in practice, the transmission mechanism may convert a rotating motion into a linear motion, such as a rack-and-pinion mechanism, a lead screw nut, and other mechanisms. For example, the rotating motor can be connected with a gear, the gear is meshed with a rack, the rack is fixed on the fixed frame, and the rotating motor drives the gear to rotate and drives the rack to move, so that the fixed frame is driven to move; the rotary motor can be connected with the screw rod, the nut is sleeved on the screw rod, the fixing frame is connected with the nut, and the rotary motor drives the screw rod to rotate and drives the nut to move so as to drive the fixing frame to move.
In the embodiment of the present invention, the testing apparatus for a solar cell further includes: a second drive assembly; the second driving assembly is connected with the pressing platform 20, the pressing platform 20 is further used for adsorbing the battery piece 40 to be tested, and the positioning piece is further used for collecting positioning information of the pressing platform 20; the control system is electrically connected with the second driving assembly and is further used for controlling the second driving assembly to drive the pressing platform 20 to move according to the acquired positioning information of the pressing platform 20 so as to drive the battery piece 40 to be tested to move or rotate.
Specifically, the pressing platform 20 can absorb the battery piece 40 to be tested, so that the battery piece 40 to be tested moves along with the movement of the pressing platform 20. In practice, the second through hole 21 and the picking port 22 on the pressing platform 20 are set according to the target position of the battery piece 40 to be tested, so that the second through hole 21 and the picking port 22 can be used as a reference for positioning the position of the battery piece 40 to be tested, and therefore, the laser mark can be marked on the second through hole 21 and the picking port 22. The control system judges that the position information of the battery piece 40 to be tested is not matched with the preset position information, acquires the positioning information of the pressing platform 20, and controls the second driving assembly to drive the pressing platform 20 to move or rotate according to the positioning information until the position information of the battery piece 40 to be tested is matched with the preset position information, so that the test probe 30 can be in contact with the battery piece 40 to be tested, and the test accuracy is improved.
Illustratively, the test apparatus may further include: the second driving assembly comprises a second rotating motor and a second linear motor; the second rotating table is rotatably arranged on the machine table, a second rotating shaft can be arranged on the machine table, the second rotating table can be fixedly sleeved on the second rotating shaft, and one end of the pressing platform 20 is provided with a connecting piece and a third sliding block; the connecting piece is fixedly sleeved on the second rotating shaft, the second rotating motor is connected with the second rotating shaft, the control system is also connected with the second rotating motor, and the control system can also drive the second rotating motor to drive the second rotating shaft to rotate and drive the connecting piece to rotate, so that the lower pressing platform 20 is driven to rotate, and the battery piece 40 to be tested is driven to rotate; and a third sliding groove is formed in the second rotating shaft and is arranged in the vertical direction, a third sliding block is arranged in the third sliding groove in a sliding mode and is connected with a second rotating motor, the control system is also connected with a second linear motor, and the control system can also drive the second linear motor to drive the third sliding block to move in the vertical direction, so that the pressing platform 20 is driven to move, and then the battery piece 40 to be detected is driven to move.
In the embodiment of the present invention, a flexible buffer layer is provided on the surface of the pressing platform 20 close to the testing platform 10 in the vertical direction.
In practice, in order to prevent the cell 40 to be tested from being damaged, the pressing platform 20 is close to the surface of the testing platform 10, that is, a flexible buffer layer is fixed on the surface of the pressing platform 20 contacting with the cell 40 to be tested, the flexible buffer layer may be made of a transparent flexible material, and in order not to affect the light receiving of the cell 40 to be tested, the flexible buffer layer may be disposed in a region of the lower surface of the pressing platform 20 side not opposite to the cell 40 to be tested.
In the embodiment of the present invention, the testing apparatus for a solar cell further includes: rotating the working table; the rotary worktable is rotatably arranged on the machine table, and the test platform 10 is arranged on the rotary worktable.
Particularly, testing arrangement still includes the third driving piece, is equipped with the third pivot on the board, and the fixed cover of swivel work head is located in the third pivot, and the third driving piece includes third rotating electrical machines, and the third rotating electrical machines is connected with third pivot and control system respectively, and control system can also drive the rotation of third rotating electrical machines to drive the rotation of third pivot, and then drive swivel work head and rotate.
In practice, the testing platform 10 may be disposed on the rotary table by means of fasteners or welding, and the testing platform 10 may rotate along with the rotation of the rotary table.
In practice, three station positions of a feeding station, a testing station and a discharging station are sequentially arranged on a track of the rotating workbench driving each working platform to rotate, the three stations are uniformly arranged along the circumferential direction of the rotating workbench, that is, the three working platforms are uniformly arranged along the circumferential direction of the rotating workbench, wherein the working platform positioned at the testing station is called as a testing platform 10. In practice, all three work stations are moved to the test station, and therefore, the structure of each work station is the same as that of the test station 10. The rotary workbench drives each working platform to rotate in a circulating mode in sequence in the horizontal plane, and testing speed can be improved.
The working process of the testing device for the solar cell of the embodiment is as follows:
firstly, placing a battery piece 40 to be tested on a working platform corresponding to a feeding station; the rotary workbench is driven by a third rotary motor to drive the working platform to rotate for 90 degrees, and at the moment, the battery piece 40 to be tested rotates from the feeding station to the testing station; during testing, the first rotating motor can firstly rotate the fixing frame to a position corresponding to the working platform, then the two first linear motors drive the fixing support to move upwards until the test probe 30 is contacted with the lower surface of the battery piece 40 to be tested, finally the second rotating motor can firstly drive the pressing platform 20 to rotate to a position opposite to the battery piece 40 to be tested, and then the second linear motor drives the pressing platform 20 to move to a position contacted with the upper surface of the battery piece 40 to be tested; after the test is finished, the second linear motor drives the pressing platform 20 to move upwards, and the first linear motor drives the fixing frame to move downwards so as to loosen the battery piece 40 to be tested; and the third rotating motor continuously drives the working platform to rotate by 90 degrees, at the moment, the battery piece 40 to be tested rotates to the blanking station from the testing station, and then the battery piece 40 to be tested is taken out and sequentially and circularly carried out.
It should be noted that, according to actual needs, in addition to three stations of a feeding station, a testing station and a discharging station, stations can be added, for example, a waiting station is added between the feeding station and the testing station, at this time, four station positions of the feeding station, the waiting station, the testing station and the discharging station are sequentially arranged on a track where the rotary workbench drives each working platform to rotate, and the four stations are uniformly arranged along the circumferential direction of the rotary workbench.
Specifically, the testing device is further provided with an alarm, the control system is connected with the alarm, if the testing device is abnormal, the control system controls the alarm to give an alarm sound and controls the testing device to be closed, so that an operator can take out the battery piece 40 to be tested from the taking port 22.
In the embodiment of the utility model, the testing device for the solar cell has the following advantages:
in an embodiment of the present invention, a testing apparatus for a solar cell includes: the device comprises a test platform, a light source, a pressing platform and a plurality of test probes; the test platform is used for supporting a battery piece to be tested, a plurality of first through holes are formed in the test platform, one test probe corresponds to one first through hole, and each test probe penetrates through the corresponding first through hole to be in contact with the battery piece to be tested; the pressing platform is of a light-transmitting structure and is positioned on the surface of the battery piece to be tested, which is far away from the testing platform; one side of the pressing platform far away from the test platform is provided with a light source, or one side of the pressing platform far away from the test platform and one side of the test platform far away from the pressing platform are respectively provided with a light source, and the pressing platform is used for pressing down the battery piece to be tested so as to attach the battery piece to be tested on the test platform. It is thus clear that compare with current testing arrangement, this embodiment has increased the push down platform, and push down the platform and be located the battery piece that awaits measuring and keep away from test platform on the surface, push down the platform and push down the battery piece that awaits measuring, can offset the ascending effort of some test probes at least to make the battery piece that awaits measuring can attach on test platform better, thereby improve the accuracy of test.
It should be noted that, in this specification, each embodiment is described in a progressive manner, and each embodiment focuses on differences from other embodiments, and portions that are the same as and similar to each other in each embodiment may be referred to.
While alternative embodiments of the present invention have been described, additional variations and modifications of those embodiments may occur to those skilled in the art once they learn of the basic inventive concepts. It is therefore intended that the following claims be interpreted as including alternative embodiments and all such alterations and modifications as fall within the true scope of the embodiments of the utility model.
Finally, it should also be noted that, in this document, relational terms such as first and second, and the like may be used solely to distinguish one entity from another entity without necessarily requiring or implying any actual such relationship or order between such entities. Also, the terms "comprises," "comprising," or any other variation thereof, are intended to cover a non-exclusive inclusion, such that an article or terminal apparatus that comprises a list of elements does not include only those elements but may include other elements not expressly listed or inherent to such article or terminal apparatus. Without further limitation, an element defined by the phrase "comprising an … …" does not exclude the presence of additional like elements in the article or terminal device comprising the element.
While the technical solutions provided by the present invention have been described in detail, the principles and embodiments of the present invention are described herein by using specific examples, and meanwhile, for a person of ordinary skill in the art, according to the principles and implementation manners of the present invention, changes may be made in the specific embodiments and application ranges.
Claims (12)
1. A testing device for solar cells is characterized by comprising: the device comprises a test platform, a light source, a pressing platform and a plurality of test probes;
the test platform is used for supporting a battery piece to be tested, a plurality of first through holes are formed in the test platform, one test probe corresponds to one first through hole, and each test probe penetrates through the corresponding first through hole to be in contact with the battery piece to be tested;
the pressing platform is of a light-transmitting structure and is positioned on the surface of the battery piece to be tested, which is far away from the testing platform;
the utility model discloses a battery piece that awaits measuring, including test platform, push down the platform and keep away from one side of test platform is equipped with the light source, perhaps, push down the platform and keep away from one side of test platform with one side of push down the platform is equipped with respectively the light source, push down the platform and be used for pushing down the battery piece that awaits measuring, so that the battery piece that awaits measuring is attached in on the test platform.
2. The device for testing the solar cell of claim 1, further comprising: a vacuum adsorption member;
the test platform is equipped with the absorption hole, vacuum adsorption spare with the absorption jogged joint, vacuum adsorption spare is used for taking out gas in the absorption hole, so that the battery piece that awaits measuring adsorb in on the test platform.
3. The solar cell testing device according to claim 2, wherein the adsorption holes comprise a plurality of first adsorption holes and second adsorption holes which are arranged at intervals;
in the vertical direction, the test platform comprises a first surface and a second surface which are opposite, the first surface is close to the pressing platform, and each first adsorption hole penetrates through the second surface from the first surface;
the second adsorption holes penetrate through the other side wall from one side wall of the test platform, one side wall is opposite to the other side wall, one second adsorption hole corresponds to one first adsorption hole, and each second adsorption hole is communicated with the corresponding first adsorption hole and is connected with the vacuum adsorption piece.
4. The solar cell testing device according to claim 2, wherein the pressing platform is provided with a plurality of second through holes in a vertical direction;
the second through holes are arranged at intervals, each second through hole is respectively connected with the vacuum adsorption piece, and the vacuum adsorption pieces are further used for blowing air into the second through holes so that the battery piece to be tested is adsorbed on the test platform or the battery piece to be tested is helped to be separated from the test platform.
5. The device for testing the solar cell, according to claim 1, wherein the pressing platform is provided with a taking port, and the taking port is used for taking the cell to be tested.
6. The device for testing the solar cell of claim 1, further comprising: the device comprises a machine table, a bracket and a fixing frame;
the bracket is fixed on the machine table, and the light source is arranged on the bracket;
the test probes are fixed on the fixing frame, and the fixing frame is connected to the machine table in a sliding mode in the vertical direction.
7. The device for testing the solar cell of claim 6, further comprising: the device comprises a positioning piece, a control system and a first driving assembly;
each test probe is respectively connected with the control system, and the control system is further used for acquiring the electrical parameters of the battery piece to be tested, which are detected by the test probes;
the positioning piece is arranged on the support and used for collecting positioning information of the battery piece to be detected, and the first driving assembly is connected with the fixing frame;
the control system is respectively electrically connected with the positioning piece and the driving assembly, and is further used for controlling the first driving assembly to drive the fixing frame to move or rotate according to the acquired positioning information of the battery piece to be tested so as to adjust the position of the test probe.
8. The device for testing the solar cell of claim 7, further comprising: a second drive assembly;
the second driving assembly is connected with the pressing platform, the pressing platform is further used for adsorbing the battery piece to be tested, and the positioning piece is further used for collecting positioning information of the pressing platform;
the control system is electrically connected with the second driving assembly and is further used for controlling the second driving assembly to drive the pressing platform to move or rotate according to the acquired positioning information of the pressing platform so as to drive the battery piece to be detected to move or rotate.
9. The device for testing the solar cell slice as claimed in claim 1 or 8, wherein a flexible buffer layer is arranged on the surface of the pressing platform close to the testing platform in the vertical direction.
10. The device for testing the solar cell of claim 6, further comprising: rotating the working table;
the rotary worktable is rotatably arranged on the machine table, and the test platform is arranged on the rotary worktable.
11. The device for testing the solar cell slice as claimed in claim 1, wherein the pressing platform and/or the testing platform comprise a light-transmitting material with a light transmittance of 90% or more.
12. The device for testing the solar cell sheet according to claim 11, wherein the light-transmitting material comprises any one selected from quartz, glass, and organic polymer material.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| PCT/CN2022/096262 WO2023045390A1 (en) | 2021-09-27 | 2022-05-31 | Test apparatus for solar cell sheet |
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| Application Number | Priority Date | Filing Date | Title |
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| CN202111141270 | 2021-09-27 | ||
| CN2021111412700 | 2021-09-27 |
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| CN216485412U true CN216485412U (en) | 2022-05-10 |
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| CN (1) | CN216485412U (en) |
| WO (1) | WO2023045390A1 (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN114985313A (en) * | 2022-07-19 | 2022-09-02 | 宿迁庆阳太阳能科技有限公司 | Sample testing system based on solar panel processing |
| WO2023045390A1 (en) * | 2021-09-27 | 2023-03-30 | 泰州隆基乐叶光伏科技有限公司 | Test apparatus for solar cell sheet |
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| CN116626348B (en) * | 2023-07-24 | 2023-10-13 | 昆山龙雨智能科技有限公司 | Connector detection equipment and detection method thereof |
| CN117317059B (en) * | 2023-10-07 | 2024-04-05 | 安徽美达伦光伏科技有限公司 | Solar cell groove type alkali polishing machine table and production line |
| CN117284767A (en) * | 2023-10-30 | 2023-12-26 | 安徽朗越能源股份有限公司 | Grabbing device for lithium ion battery plate |
| CN117554788B (en) * | 2024-01-11 | 2024-04-16 | 凯瑞电子(诸城)有限公司 | Chip packaging test equipment |
| CN117872030B (en) * | 2024-03-12 | 2024-05-28 | 东莞市楷德精密机械有限公司 | Quartz crystal test head |
Family Cites Families (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN203054178U (en) * | 2012-12-24 | 2013-07-10 | 苏州阿特斯阳光电力科技有限公司 | Performance testing device for double-face back-contact solar cells |
| CN204349918U (en) * | 2015-01-09 | 2015-05-20 | 顺德中山大学太阳能研究院 | A kind of MWT solar cell IV test macro |
| CN208547691U (en) * | 2018-07-03 | 2019-02-26 | 四川工业科技学院 | A kind of MWT solar battery IV test device |
| CN211509018U (en) * | 2020-01-07 | 2020-09-15 | 通威太阳能(眉山)有限公司 | Testing device |
| CN214125242U (en) * | 2020-11-24 | 2021-09-03 | 浙江晶科能源有限公司 | Solar cell testing device |
| CN216485412U (en) * | 2021-09-27 | 2022-05-10 | 泰州隆基乐叶光伏科技有限公司 | Testing device for solar cell |
-
2021
- 2021-10-13 CN CN202122471894.0U patent/CN216485412U/en active Active
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2022
- 2022-05-31 WO PCT/CN2022/096262 patent/WO2023045390A1/en unknown
Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO2023045390A1 (en) * | 2021-09-27 | 2023-03-30 | 泰州隆基乐叶光伏科技有限公司 | Test apparatus for solar cell sheet |
| CN114985313A (en) * | 2022-07-19 | 2022-09-02 | 宿迁庆阳太阳能科技有限公司 | Sample testing system based on solar panel processing |
| CN114985313B (en) * | 2022-07-19 | 2022-10-21 | 宿迁庆阳太阳能科技有限公司 | Sample testing system based on solar panel processing |
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| WO2023045390A1 (en) | 2023-03-30 |
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