Photovoltaic cell testing device and photovoltaic cell testing equipment

Abstract

The utility model discloses a photovoltaic cell testing device and photovoltaic cell testing equipment, and belongs to the technical field of testing devices.The photovoltaic cell testing device comprises a bearing assembly, a friction piece and a driving mechanism, and the bearing assembly is used for bearing a photovoltaic cell; the friction piece is arranged on one side of the bearing assembly, the friction piece is provided with a contact surface facing the bearing assembly, the friction piece can press the photovoltaic cell, and the contact surface can be attached to the photovoltaic cell; and the driving mechanism is connected with the friction piece and can drive the friction piece to move on the photovoltaic cell. The driving mechanism is arranged to drive the friction piece to move in the second direction, so that the friction piece can scrape the surface of the photovoltaic cell, since the weight and the angle of the friction piece do not change, the force and the angle during testing do not change, and since the moving speed of the friction piece is controlled by the driving mechanism, the testing accuracy is improved. Therefore, the speed of each test can be consistent, so that the test result is more accurate, and the reference is higher.

Description

Technical Field

[0001] This application belongs to the field of testing device technology, specifically relating to a photovoltaic cell testing device and photovoltaic cell testing equipment. Background Technology

[0002] The adhesion of photovoltaic cell grid lines refers to the strength with which the grid lines bond to the silicon wafer through physical and chemical processes. Photovoltaic cell grid line adhesion is an important indicator for evaluating photovoltaic pastes and is related to the power generation efficiency from cell to module.

[0003] Existing adhesion tests involve manually scratching the grid lines. However, due to significant differences in the force, angle, and speed of each scratch, accurate test results are difficult to obtain. Utility Model Content

[0004] The purpose of this utility model is to provide a photovoltaic cell testing device to solve the technical problem that it is difficult to obtain accurate test results due to large differences in force, angle and speed; another purpose of this application is to provide a photovoltaic cell testing equipment.

[0005] Technical solution: This application provides a photovoltaic cell testing device, including:

[0006] A support component, wherein the support component is used to support photovoltaic cells;

[0007] A friction element is disposed on one side of the support assembly, the friction element has a contact surface facing the support assembly, the friction element can press against the photovoltaic cell, and the contact surface can be in contact with the photovoltaic cell;

[0008] A driving mechanism is connected to the friction element, and the driving mechanism can drive the friction element to move on the photovoltaic cell.

[0009] In some embodiments, the photovoltaic cell testing apparatus further includes a connection component, the connection component including a traction member, the two ends of which are respectively connected to the friction member and the driving mechanism, the traction member being capable of deformation so that the contact surface can move away from the photovoltaic cell.

[0010] In some embodiments, the connecting assembly further includes a pusher member connected to the side of the drive mechanism facing the friction member.

[0011] In some embodiments, the pushing member is provided with a limiting groove on the side facing the friction member, and the groove wall of the limiting groove can be connected to the friction member to limit the friction member.

[0012] In some embodiments, the photovoltaic cell testing device further includes a housing having a receiving cavity, a first surface facing away from the receiving cavity, a first through hole and a second through hole, the first through hole communicating with the receiving cavity, a support component passing through the first through hole, the support component having a support surface facing away from the receiving cavity along a first direction, the support surface being used to support the photovoltaic cell; the second through hole communicating with the receiving cavity, a portion of the driving mechanism passing through the second through hole and being movable along a second direction, the first through hole and the second through hole being spaced apart along a third direction, the first direction, the second direction and the third direction intersecting each other.

[0013] In some embodiments, the drive mechanism includes:

[0014] A driving element, wherein the driving element is disposed in the receiving cavity;

[0015] A transmission assembly is disposed in the receiving cavity and is connected to the driving member;

[0016] A support member is connected to the transmission assembly. The support member passes through the second through hole, and the portion of the support member exposed in the second through hole is connected to the friction member. The driving member can drive the transmission assembly so that the support member moves along the second direction.

[0017] In some embodiments, the support member includes:

[0018] A first support portion is connected to the transmission assembly, and the first support portion passes through the second through hole;

[0019] The second support portion is connected to the side of the first support portion away from the transmission assembly along the first direction. The second support portion is spaced apart from the first surface along the first direction. The second support portion is connected to the friction member. The second support portion is movable along the second direction to be spaced apart from the bearing surface along the first direction.

[0020] In some embodiments, the carrier component includes:

[0021] A support member having the support surface and passing through the first through hole;

[0022] An air pump is connected to the carrier, the air pump is disposed in the receiving cavity, and is connected to the housing.

[0023] In some embodiments, the driving element is a stepper motor.

[0024] In some embodiments, the photovoltaic cell testing apparatus includes a plurality of friction elements, which are spaced apart along a direction perpendicular to the movement of the drive mechanism.

[0025] In some embodiments, the first surface further has a third through hole; the carrier assembly further includes a pressure regulating valve and a controller, the pressure regulating valve being disposed in the receiving cavity and connected between the air pump and the carrier, the controller being disposed in the receiving cavity and connected to the pressure regulating valve, the controller being connected to the housing, and at least a portion of the controller being exposed through the third through hole.

[0026] In some embodiments, the drive mechanism further includes a control component connected to the drive member, a portion of which extends through the housing.

[0027] In some embodiments, the friction member includes a pressing portion and a friction portion, the contact surface is located on the friction portion, and the pressing portion is connected to the side of the friction portion opposite to the contact surface.

[0028] Accordingly, this application also provides a photovoltaic cell testing device, including the photovoltaic cell testing apparatus as described in any of the above embodiments.

[0029] Beneficial Effects: Compared with the prior art, the photovoltaic cell testing device provided in this application includes a supporting component, a friction element, and a driving mechanism. The supporting component is used to support the photovoltaic cell; the friction element is disposed on one side of the supporting component, has a contact surface facing the supporting component, and can press against the photovoltaic cell, with the contact surface adhering to the photovoltaic cell; the driving mechanism is connected to the friction element and can drive the friction element to move on the photovoltaic cell. This application, by setting a driving mechanism to drive the friction element to move along a second direction, allows the friction element to scratch the surface of the photovoltaic cell. Since the weight and angle of the friction element do not change, the force and angle during testing do not change. Furthermore, since the speed of the friction element's movement is controlled by the driving mechanism, the speed of each test can be kept consistent, resulting in more accurate and reliable test results. Attached Figure Description

[0030] The technical solution and other beneficial effects of this application will become apparent from the following detailed description of specific embodiments in conjunction with the accompanying drawings.

[0031] Figure 1 This is a top view schematic diagram of the photovoltaic cell testing device provided in the embodiments of this application;

[0032] Figure 2 This is a perspective view of the photovoltaic cell testing device provided in the embodiments of this application;

[0033] Figure 3 This is another perspective view of the photovoltaic cell testing device provided in the embodiments of this application;

[0034] Figure 4 A top view of the photovoltaic cell testing device provided in the embodiments of this application when carrying a photovoltaic cell;

[0035] Figure 5 Another top view of the photovoltaic cell testing device provided in the embodiments of this application when carrying a photovoltaic cell;

[0036] Figure 6 Another top view of the photovoltaic cell testing device provided in the embodiments of this application when carrying a photovoltaic cell;

[0037] Figure 7 Another top view of the photovoltaic cell testing device provided in the embodiments of this application when carrying a photovoltaic cell;

[0038] Figure 8 A detailed diagram showing the connection between the friction component of the photovoltaic cell testing device provided in this application embodiment and the photovoltaic cell;

[0039] Figure 9 Another detailed view of the photovoltaic cell testing device friction component connected to the photovoltaic cell in the embodiments of this application.

[0040] Reference numerals in the attached figures: 100-bearing component, 110-bearing element, 111-bearing surface, 112-air pore, 120-air pump, 130-pressure regulating valve, 140-controller, 200-friction element, 210-contact surface, 220-friction part, 230-pressing part, 300-drive mechanism, 310-drive element, 320-transmission component, 321-belt, 322-roller, 330-support element, 331-first support part, 332-second support part, 34 0-Control component, 400-Connection component, 410-Traction component, 420-Push component, 430-Limiting groove, 500-Housing housing, 510-Receiving cavity, 520-First surface, 530-First through hole, 540-Second through hole, 550-Third through hole, 600-Interactive component, 610-Display panel, 620-Input panel, 700-Photovoltaic cell, 710-Grid line, 800-Sub-housing housing, X-First direction, Y-Second direction, Z-Third direction. Detailed Implementation

[0041] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only a part of the embodiments of this application, and not all of them. All other embodiments obtained by those skilled in the art based on the embodiments of this application without creative effort are within the scope of protection of this application.

[0042] In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "connected" and "linked" should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection, an electrical connection, or a connection that allows for mutual communication; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two elements or the interaction between two elements. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances. In the description of this application, "multiple" means two or more, unless otherwise expressly and specifically limited. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more features.

[0043] It should also be noted that in the accompanying drawings of the embodiments of this application, the arrows labeled X, Y, and Z respectively represent the first direction X, the second direction Y, and the third direction Z. The description of this application introduces the first direction X, the second direction Y, and the third direction Z to more clearly express the relative positional relationship involved in this application. The first direction X, the second direction Y, and the third direction Z are three intersecting relative directions, not absolute directions. In practical applications, the first direction X, the second direction Y, and the third direction Z can point to any direction in space, as long as the intersection relationship between them is maintained.

[0044] The following disclosure provides many different implementations or examples for carrying out different structures of this application. To simplify the disclosure of this application, the components and arrangements of specific examples are described below. Of course, these are merely examples and are not intended to limit this application.

[0045] The adhesion of the 700 grid line 710 in photovoltaic cells refers to the degree to which the grid line 710 is firmly bonded to the silicon wafer after drying through physical and a small amount of chemical action. The adhesion of the 700 grid line 710 in photovoltaic cells is an important indicator for evaluating photovoltaic pastes and is related to the power generation efficiency from cell to module.

[0046] Existing adhesion tests involve manually scratching the grid line 710. However, due to significant differences in the force, angle, and speed of each scratch, accurate test results are difficult to obtain.

[0047] Among them, force refers to the magnitude of the pressure exerted on the photovoltaic cell 700 perpendicular to its surface; angle refers to the angle between the pressure exerted on the surface of the photovoltaic cell 700 and the surface of the photovoltaic cell 700; and velocity refers to the magnitude of the velocity of the object applying pressure to the surface of the photovoltaic cell 700 relative to the photovoltaic cell 700 in a direction parallel to its surface.

[0048] To address the technical problem of inaccurate and unreliable test results caused by inconsistent force, angle, and speed during manual testing, the first embodiment of this application provides a photovoltaic cell testing device. Please refer to... Figure 1 and Figure 4 ,in, Figure 1 This is a top view schematic diagram of a photovoltaic cell testing device in an embodiment of this application when no photovoltaic modules are placed on it. Figure 4 This is a top view of a photovoltaic cell testing device according to an embodiment of this application, with a photovoltaic cell 700 module placed on it. The photovoltaic cell testing device includes a support component 100, a friction element 200, and a drive mechanism 300. The support component 100 supports the photovoltaic cell 700. The friction element 200 is disposed on one side of the support component 100 along a first direction X. The friction element 200 has a contact surface 210 facing the support component 100 along the first direction X. The friction element 200 can press against the photovoltaic cell 700, and the contact surface 210 can fit closely to the photovoltaic cell 700. The drive mechanism 300 is connected to the friction element 200, and a portion of the drive mechanism 300 can drive the friction element 200 to move along a second direction Y on the photovoltaic cell 700. The first direction X and the second direction Y intersect.

[0049] In this case, the first direction X is parallel to the direction of gravity, and the friction component 200 is connected to the photovoltaic cell 700 by gravity.

[0050] In some embodiments, the friction element 200 is a weight.

[0051] The contact surface 210 allows the friction element 200 to be stably placed on the photovoltaic cell 700. When the friction element 200 scrapes the photovoltaic cell 700, the angle between the friction element 200 and the photovoltaic cell 700 can remain consistent, and the friction element 200 can also be prevented from tipping over and damaging the photovoltaic cell 700.

[0052] Specifically, the contact surface 210 is a plane. When the friction element 200 is placed on the photovoltaic cell 700, the contact surface 210 can fit against the surface of the photovoltaic cell 700, so that a large contact area 210 can be obtained between the friction element 200 and the photovoltaic cell 700, thereby ensuring the stability of the friction element 200 during testing.

[0053] In some embodiments, the contact surface 210 is a rough surface.

[0054] In the above embodiment, the friction element 200, placed on the surface of the photovoltaic cell 700, is moved by the driving mechanism 300, thereby causing the friction element 200 to perform a scraping action on the photovoltaic cell 700, thus realizing the test action of the adhesion of the grid lines 710 of the photovoltaic cell 700. Since the mass of the friction element 200 does not change during the test, the force of each action in multiple tests of the adhesion of the grid lines 710 of the photovoltaic cell 700 is consistent. Since the friction element 200 has a contact surface 210 that can adhere to the surface of the photovoltaic cell 700, the angle of each action in multiple tests of the adhesion of the grid lines 710 of the photovoltaic cell 700 is consistent. Since the friction element 200 is driven by the driving mechanism 300, by controlling the driving mechanism 300, the speed of each action in multiple tests of the adhesion of the grid lines 710 of the photovoltaic cell 700 can also be kept consistent. Therefore, relatively accurate test results can be obtained, and the accuracy and repeatability of the test results are high.

[0055] In some embodiments, please refer to Figure 2 , Figure 4 and Figure 5 ,in, Figure 4 and Figure 5 These are schematic diagrams showing the friction element 200 being pulled from left to right by the traction element 410 at two extreme positions along the second direction Y. A photovoltaic cell testing device also includes a connecting component 400, which includes a traction element 410. The two ends of the traction element 410 are respectively connected to the friction element 200 and the driving mechanism 300. The traction element 410 can deform so that the friction element 200 can move away from the bearing component 100 along the first direction X.

[0056] In some embodiments, the traction member 410 is a flexible member; in some embodiments, the traction member 410 is a traction belt or traction rope capable of deformation.

[0057] In some embodiments, a photovoltaic cell testing device further includes a fixing bolt, and one end of the traction member 410 is clamped between the bolt head of the fixing bolt and the drive mechanism 300 along a first direction X to achieve the connection between the traction member 410 and the drive mechanism 300.

[0058] In some embodiments, the other end of the traction member 410 is fixedly connected to the friction member 200.

[0059] In the above embodiment, the traction member 410 enables the friction member 200 to move together when a part of the drive mechanism 300 moves. Simultaneously, because the traction member 410 can deform, the friction member 200 can move in the first direction X without disconnecting from the drive mechanism 300, for placing or removing the photovoltaic cell 700. This facilitates the loading and unloading of the photovoltaic cell testing device, reduces the difficulty of using the device, and improves its efficiency.

[0060] In other embodiments, the traction member 410 is a rigid member, and the drive mechanism 300 can pull the friction member 200 along... Figure 4 Moving from left to right, it can also push the friction part 200. Figure 4 The center moves from right to left.

[0061] In some embodiments, please refer to Figure 3 , Figure 6 and Figure 7 ,in, Figure 6 and Figure 7 These are schematic diagrams showing the friction member 200 being pushed from right to left by the traction member 410 at two extreme positions along the second direction Y. The connecting assembly 400 also includes a pushing member 420, which is connected to the side of the drive mechanism 300 facing the friction member 200 along the second direction Y.

[0062] It is understandable that in some embodiments, since the traction member 410 is a flexible member and cannot withstand pressure along the extension direction, the drive mechanism 300 can only pull the friction member 200 to move unidirectionally along the second direction Y.

[0063] In the above embodiments, the connecting assembly 400, including the pushing member 420, allows the drive mechanism 300 to push the friction member 200 in... Figure 3 The device moves from right to left, which allows the photovoltaic cell 700 to be easily picked up and placed, while the drive mechanism 300 can drive the friction component 200 to reciprocate along the second direction Y, thereby improving the testing efficiency of the photovoltaic cell testing device.

[0064] In some embodiments, please refer to Figure 1 , Figure 3 , Figure 4 and Figure 6 The pusher 420 is provided with a limiting groove 430 on the side of the friction member 200 along the second direction Y. The groove wall of the limiting groove 430 can be connected with the friction member 200 to limit the friction member 200 along the third direction Z. The first direction X, the second direction Y and the third direction Z intersect each other.

[0065] In some embodiments, the opening of the limiting groove 430 faces the friction member 200 along the second direction Y, and the limiting groove 430 penetrates the push member 420 along the first direction X. The groove wall of the limiting groove 430 can contact the friction member 200 and limit the displacement of the friction member 200 relative to the battery cell along the third direction Z.

[0066] In the above embodiment, the limiting groove 430 is provided to reduce the pushing of the friction member 200 by the pushing member 420. Figure 3 When moving freely to the left, the friction element 200 has the potential to move along a third direction Z, making the scratching trajectory of the friction element 200 on the photovoltaic cell 700 controllable and predictable, further improving the consistency of each test, thus making the test results more accurate and more referential.

[0067] In some embodiments, please refer to Figure 2 and Figure 3 A photovoltaic cell testing device further includes a housing 500, which has a receiving cavity 510 and a first surface 520 facing away from the receiving cavity 510. The first surface 520 has a first through hole 530 and a second through hole 540. The first through hole 530 communicates with the receiving cavity 510. A support component 100 passes through the first through hole 530 and has a support surface 111 facing away from the receiving cavity 510 along a first direction X. The support surface 111 is used to support a photovoltaic cell 700. The second through hole 540 communicates with the receiving cavity 510. A portion of a drive mechanism 300 passes through the second through hole 540 and is movable along a second direction Y. The first through hole 530 and the second through hole 540 are spaced apart along a third direction Z. The first direction X, the second direction Y, and the third direction Z intersect each other.

[0068] The second through hole 540 of the first through hole 530, which is spaced along the third direction Z, allows a portion of the drive mechanism 300 passing through the second through hole 540 to be located along the third direction Z on one side of the support component 100 passing through the first through hole 530.

[0069] In the above embodiment, by partially housing the support component 100 and the drive mechanism 300 within the receiving cavity 510 of the housing 500, a certain degree of protection is provided for the support component 100 and the drive mechanism 300, thereby improving the reliability of the photovoltaic cell testing device and extending its service life. Simultaneously, the housing 500 also functions as a support, connecting the support component 100 and the drive mechanism 300 together, facilitating the movement and storage of the photovoltaic cell testing device.

[0070] In some embodiments, please refer to Figure 2 and Figure 3The drive mechanism 300 includes a drive member 310, a transmission assembly 320, and a support member 330. The drive member 310 is disposed in the receiving cavity 510. The transmission assembly 320 is disposed in the receiving cavity 510 and is connected to the drive member 310. The support member 330 is connected to the transmission assembly 320 and passes through the second through hole 540. The portion of the support member 330 exposed in the second through hole 540 is connected to the friction member 200. The drive member 310 can drive the transmission assembly 320 so that the support member 330 moves along the second direction Y.

[0071] In some embodiments, the transmission assembly 320 is a belt 321 mechanism, including a belt 321 and pulleys or belt rollers that support the belt 321 and drive it to rotate. At least two pulleys or belt rollers are inserted inside the belt 321 and connected to the inner surface of the belt 321. The drive member 310 is used to drive at least one pulley or belt roller to rotate, thereby driving the belt 321 to rotate. In this embodiment, by setting the transmission assembly 320 to convert the rotational motion output by the drive member 310 into linear motion, the support member 330 can be driven to move linearly along the second direction Y.

[0072] In some embodiments, the transmission assembly 320 further includes a tensioner connected to the belt 321 so that the belt 321 remains taut during operation, thereby reducing the displacement of the support member 330 along the third direction Z when it moves along the second direction Y.

[0073] In some embodiments, one end of the support member 330 is clamped to the belt 321. The forward and reverse rotation of the belt 321 can drive the support member 330 to move forward and reverse along the second direction Y, respectively, thereby causing the friction member 200 to move forward and reverse along the second direction Y, respectively corresponding to Figure 2 and Figure 3 Move from right to left and from left to right.

[0074] In the above embodiments, by placing the transmission assembly 320 and the drive member 310 in the receiving cavity 510 so that the housing 500 can provide protection for the transmission assembly 320 and the drive member 310, the reliability of the transmission assembly 320 and the drive member 310 is improved, and the service life of the transmission assembly 320 and the drive member 310 is extended.

[0075] In some embodiments, please refer to Figure 2 and Figure 3The support member 330 includes a first support portion 331 and a second support portion 332. The first support portion 331 is connected to the transmission assembly 320 and passes through the second through hole 540. The second support portion 332 is connected to the side of the first support portion 331 away from the transmission assembly 320 along the first direction X. The second support portion 332 and the first surface 520 are spaced apart along the first direction X. The second support portion 332 is connected to the friction member 200. The second support portion 332 can move along the second direction Y to be spaced apart from the bearing surface 111 along the first direction X.

[0076] In some embodiments, the end of the first support portion 331 away from the second support portion 332 is connected to the belt 321; in some embodiments, the end of the first support portion 331 away from the second support portion 332 is fixed and clamped to the belt 321.

[0077] In the above embodiment, since the first through hole 530 and the second through hole 540 are spaced apart along the third direction Z, when the first support part 331 is located on one side of the bearing component 100 along the third direction Z, the second support part 332 can be located on one side of the bearing component 100, so as to allow the second support part 332 to drive the friction member 200 to move as far as possible on the photovoltaic cell 700, thereby further improving the accuracy of the test results.

[0078] In some embodiments, please refer to Figure 1 , Figure 2 and Figure 3 The support assembly 100 includes a support member 110 and an air pump 120. The support member 110 has a support surface 111 and is disposed through a first through hole 530. The air pump 120 is connected to the support member 110, is disposed in the receiving cavity 510, and is connected to the housing 500.

[0079] In some embodiments, the carrier 110 is a suction cup with a plurality of air holes 112 on the carrier surface 111. The air pump 120 can form a negative pressure on the carrier surface 111 through the air holes 112 to adsorb the photovoltaic cell 700.

[0080] In some embodiments, the maximum dimension of the vent 112 along the first direction X is D, which satisfies: 5mm≤D≤8mm.

[0081] Specifically, the value of D can be any one of 5mm, 6mm, 7mm, and 8mm or any two of them. When the value of D is within the range defined in the embodiments of this application, it can ensure that the bearing surface 111 can provide good support for the photovoltaic cell 700 and also obtain a good negative pressure effect, thereby realizing the limitation of the photovoltaic cell 700 along the second direction Y and the third direction Z.

[0082] In the above embodiments, by setting up a support member 110 and an air pump 120 connected to the support member 110, the support member 110 can still perform an adsorption action on the photovoltaic cell 700 while carrying the photovoltaic cell 700, thereby limiting the displacement of the photovoltaic cell 700. This prevents the friction member 200 from moving the photovoltaic cell 700 when it moves, and makes the speed of the friction member 200 relative to the photovoltaic cell 700 consistent in each test, thereby improving the accuracy and reference value of the test results.

[0083] In some embodiments, the drive element 310 is a stepper motor.

[0084] In the use of a photovoltaic cell testing device, a stepper motor is connected to a control component 340 and a driver to obtain pulse signals for setting parameters such as direction, speed, and angle.

[0085] In the above embodiments, using a stepper motor as the driving component 310 and driving the transmission assembly 320 allows for the control of the rotation angle of the rotating part in the stepper motor by controlling the number of pulse signals, thereby controlling the movement of the friction component 200 along the second direction Y; controlling the rotation speed of the rotating part by controlling the pulse frequency, thereby controlling the speed of the friction component 200 moving along the second direction Y; and controlling the rate of change of the pulse frequency, thereby controlling the acceleration of the friction component 200 moving along the second direction Y. In summary, using a stepper motor as the driving component 310 allows for more convenient control of the speed of the friction component 200 moving relative to the photovoltaic cell 700 along the second direction Y, thereby improving the consistency of the friction component 200's speed during each test, and ultimately improving the accuracy and reliability of the test results.

[0086] In some embodiments, please refer to Figure 4 A photovoltaic cell testing device includes multiple friction elements 200, which are spaced apart along a third direction Z, and spaced apart along a first direction X, a second direction Y, and a third direction Z.

[0087] In the above embodiment, by setting multiple friction elements 200 spaced apart along the third direction Z, the friction elements 200 can cover the photovoltaic cell 700 as much as possible along the third direction Z, and can make more comprehensive contact with the grid lines 710 on the photovoltaic cell 700 in a single test, thereby making the test results more accurate and improving the test efficiency.

[0088] In some embodiments, please refer to Figure 2 and Figure 3The first surface 520 also has a third through hole 550; the carrier assembly 100 also includes a pressure regulating valve 130 and a controller 140. The pressure regulating valve 130 is disposed in the receiving cavity 510 and connected between the air pump 120 and the carrier 110. The controller 140 is disposed in the receiving cavity 510 and connected to the pressure regulating valve 130. The controller 140 is connected to the housing 500, and at least a portion of the controller 140 is exposed in the third through hole 550.

[0089] In some embodiments, the air pump 120 is connected to the carrier 110 via a first air pipe, the pressure regulating valve 130 is disposed on the first air pipe, and the controller 140 is connected to the pressure regulating valve 130 via a second air pipe. The controller 140 can control the pressure regulating valve 130 to adjust the magnitude of the negative pressure generated by the carrier 110.

[0090] In some embodiments, the controller 140 has the function of a barometer, and the controller 140 exposed through the third through hole 550 can display the barometer reading for easy reading by the operator.

[0091] In the above embodiment, the controller 140 exposed through the third through hole 550 allows the operator to easily adjust the negative pressure generated by the carrier component 100, thereby enabling the carrier component 100 to adapt to photovoltaic cells 700 of different specifications, reducing the difficulty of using the photovoltaic cell testing device and improving its applicability.

[0092] In some embodiments, please refer to Figure 2 and Figure 3 The drive mechanism 300 also includes a control component 340, which is connected to the drive component 310, and a portion of the control component 340 passes through the housing 500.

[0093] In some embodiments, the control component 340 includes an integrated control module for sending pulse signals to the stepper motor. The integrated control module is disposed in the receiving cavity 510 and connected to the housing 500. In some embodiments, the control module also includes a back button, a forward button, a reset button, and an emergency stop button that pass through the housing 500, to quickly control the drive member 310 to perform forward rotation, reverse rotation, return to position, and stop actions, respectively, thereby quickly enabling the drive mechanism 300 to drive the friction member 200 to perform forward movement, reverse movement, return to a preset position, and stop along the second direction Y.

[0094] In the above embodiments, by setting the control component 340, the difficulty of using the photovoltaic cell testing device can be reduced, thereby improving the efficiency of the photovoltaic cell testing device.

[0095] In some embodiments, please refer to Figure 2 and Figure 3The cavity 510 is further provided with a sub-housing housing 800, which has the sub-housing housing 510. The drive mechanism 300 also includes a transformer device, which is disposed in the sub-housing housing 510.

[0096] In the above embodiment, the transformer is used to change the voltage so that the air pump 120 and the drive unit 310 can operate.

[0097] In some embodiments, please refer to Figure 1 A photovoltaic cell testing device also includes an interactive component 600, which is installed in the housing 500 and is used for parameter setting and parameter display.

[0098] In some embodiments, the interactive component 600 includes a display panel 610 for displaying parameters and an input panel 620 for setting parameters.

[0099] In some embodiments, please refer to Figure 8 The friction member 200 includes a pressing part 230 and a friction part 220. The pressing part 230 is connected to the side of the friction part 220 away from the photovoltaic cell 700 along the first direction Z. The contact surface 210 is located on the side of the friction part 220 away from the pressing part 230 along the first direction X.

[0100] The friction part 220 is used to contact the grid line 710 and to rub against the grid line 710 when the friction member 200 moves.

[0101] In some embodiments, friction parts 220 with different coefficients of friction can be selected according to the test requirements. For example, if it is necessary to test the friction between the photovoltaic cell 700 and the conveyor belt during transportation, the friction part 220 can be made of a material with the same or similar coefficient of friction as the conveyor belt.

[0102] In some embodiments, the pressing part 230 is a weight, and weights of different weights can be selected according to the test requirements.

[0103] In some embodiments, please refer to Figure 9 The traction member 410 is disposed between the friction part 220 and the pressing part 230 along the first direction X, and is connected to the friction part 220 and the pressing part 230 respectively.

[0104] In the above embodiment, the traction member 410 is disposed between the friction part 220 and the pressing part 230 along the first direction X, so that the connection between the traction member 410 and the friction member 200 is closer to the center of gravity of the friction member 200 in the first direction X. This makes the friction member 200 more stable when the traction member 410 pulls the friction member 200, and the friction member 200 is less likely to tip over, thereby improving the reliability of the photovoltaic cell testing device.

[0105] The usage process of this photovoltaic module testing device is as follows:

[0106] 1. Place the photovoltaic cell 700 on the support surface 111 and adjust the controller 140 so that the support component 100 limits the photovoltaic cell 700;

[0107] 2. Place the friction component 200 on the surface of the photovoltaic cell 700;

[0108] 3. Set up control component 340 so that drive mechanism 300 can move. After traction component 410 is tightened, it drives friction component 200 to move along the second direction Y to the first preset position, so as to realize the first test of the adhesion of photovoltaic cell 700 grid line.

[0109] 4. Set up a control component 340 to activate the drive mechanism 300. After the pushing member 420 contacts the friction member 200, the drive mechanism 300 moves along the second direction Y to the second preset position to achieve the second test of the adhesion of the grid lines of the photovoltaic cell 700; or, adjust the controller 140 to release the limit of the bearing component 100 on the photovoltaic cell 700, remove the friction member 200, replace the next photovoltaic cell 700, set up the control component 340 to activate the drive mechanism 300. After the pushing member 420 contacts the friction member 200, the drive mechanism 300 moves along the second direction Y to the second preset position to achieve the first test of the adhesion of the grid lines of the other photovoltaic cell 700.

[0110] Accordingly, this application also provides a photovoltaic cell testing device, including a photovoltaic cell testing apparatus as described in any of the above embodiments.

[0111] The photovoltaic cell testing device and photovoltaic cell testing equipment provided in the embodiments of this application have been described in detail above. Specific examples have been used in this application to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the technical solutions and core ideas of this application. Those skilled in the art should understand that they can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features; and these modifications or substitutions do not cause the essence of the corresponding technical solutions to deviate from the scope of the technical solutions of the embodiments of this application.

Claims

1. A photovoltaic cell testing device, characterized in that, include: A support component (100) for supporting photovoltaic cells (700); Friction member (200) is disposed on one side of the support component (100), the friction member (200) has a contact surface (210) facing the support component (100), the friction member (200) can press against the photovoltaic cell (700), and the contact surface (210) can be in contact with the photovoltaic cell (700); A drive mechanism (300) is connected to the friction element (200), and the drive mechanism (300) can drive the friction element (200) to move on the photovoltaic cell (700).

2. The photovoltaic cell testing device according to claim 1, characterized in that, The photovoltaic cell testing device further includes a connecting component (400), which includes a traction member (410). The two ends of the traction member (410) are respectively connected to the friction member (200) and the driving mechanism (300). The traction member (410) can deform so that the contact surface (210) can move away from the photovoltaic cell (700).

3. The photovoltaic cell testing device according to claim 2, characterized in that, The connecting assembly (400) further includes a pusher (420) connected to the side of the drive mechanism (300) facing the friction member (200).

4. The photovoltaic cell testing device according to claim 3, characterized in that, The pusher (420) is provided with a limiting groove (430) on the side facing the friction member (200). The groove wall of the limiting groove (430) can be connected to the friction member (200) to limit the friction member (200).

5. A photovoltaic cell testing device according to claim 1, characterized in that, The photovoltaic cell testing device further includes a housing (500), the housing (500) having a receiving cavity (510), the housing (500) having a first surface (520) facing away from the receiving cavity (510), the first surface (520) having a first through hole (530) and a second through hole (540), the first through hole (530) communicating with the receiving cavity (510), the supporting component (100) passing through the first through hole (530), the supporting component (100) having a supporting surface (111), the supporting surface (111) 111) The bearing surface (111) is located away from the receiving cavity (510) along the first direction (X), and is used to support the photovoltaic cell (700); the second through hole (540) connects to the receiving cavity (510), a portion of the driving mechanism (300) passes through the second through hole (540) and is movable along the second direction (Y), the first through hole (530) and the second through hole (540) are spaced apart along the third direction (Z), and the first direction (X), the second direction (Y) and the third direction (Z) intersect each other.

6. A photovoltaic cell testing device according to claim 5, characterized in that, The drive mechanism (300) includes: A driving member (310) is disposed in the receiving cavity (510); A transmission assembly (320) is disposed in the receiving cavity (510) and is connected to the driving member (310); A support member (330) is connected to the transmission assembly (320). The support member (330) passes through the second through hole (540). The portion of the support member (330) exposed in the second through hole (540) is connected to the friction member (200). The driving member (310) can drive the transmission assembly (320) so that the support member (330) moves along the second direction (Y).

7. A photovoltaic cell testing device according to claim 6, characterized in that, The support member (330) includes: A first support part (331) is connected to the transmission assembly (320), and the first support part (331) passes through the second through hole (540); The second support (332) is connected to the first support (331) on the side away from the transmission assembly (320) along the first direction (X). The second support (332) is spaced apart from the first surface (520) along the first direction (X). The second support (332) is connected to the friction member (200). The second support (332) is movable along the second direction (Y) to be spaced apart from the bearing surface (111) along the first direction (X).

8. A photovoltaic cell testing device according to claim 5, characterized in that, The carrier component (100) includes: A support member (110) having the support surface (111) and passing through the first through hole (530); An air pump (120) is connected to the carrier (110), the air pump (120) is disposed in the receiving cavity (510) and connected to the housing (500).

9. A photovoltaic cell testing device according to claim 6, characterized in that, The driving component (310) is a stepper motor.

10. A photovoltaic cell testing device according to claim 1, characterized in that, The photovoltaic cell testing device includes a plurality of friction elements (200), which are spaced apart along a direction perpendicular to the movement of the drive mechanism (300).

11. A photovoltaic cell testing device according to claim 8, characterized in that, The first surface (520) also has a third through hole (550); the support assembly (100) further includes a pressure regulating valve (130) and a controller (140), the pressure regulating valve (130) being disposed in the receiving cavity (510) and connected between the air pump (120) and the support member (110), the controller (140) being disposed in the receiving cavity (510) and connected to the pressure regulating valve (130), the controller (140) being connected to the housing (500), and at least a portion of the controller (140) being exposed through the third through hole (550).

12. A photovoltaic cell testing device according to claim 6, characterized in that, The drive mechanism (300) further includes a control component (340), which is connected to the drive member (310), and a portion of the control component (340) extends through the housing (500).

13. The photovoltaic cell testing device according to claim 1, characterized in that, The friction element (200) includes a pressing part (230) and a friction part (220), the contact surface (210) is located on the friction part (220), and the pressing part (230) is connected to the side of the friction part (220) opposite to the contact surface (210).

14. A photovoltaic cell testing device, characterized in that, Includes a photovoltaic cell testing device as described in any one of claims 1 to 13.

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