BC battery detection device

Abstract

The utility model belongs to the field of photovoltaic detection, and particularly relates to a BC battery detection device which comprises a feeding conveying line, a discharging conveying line, a rotating mechanism, an IV-EL detection mechanism and an IR detection mechanism. According to the BC battery detection device, the BC battery is circulated at multiple stations through the rotating mechanism, IV detection, EL detection and IR detection are completed, the BC battery detection requirement can be met through one detection device, the circulation frequency of the BC battery is reduced, the risk that the BC battery is scratched is reduced, meanwhile, the three detection structures are arranged in the same detection device, and the detection efficiency is improved. The occupied space required by BC battery detection is reduced, and the effective utilization rate of the space is improved.

Description

Technical Field

[0001] This utility model belongs to the field of photovoltaic testing, specifically relating to a BC battery testing device. Background Technology

[0002] Back contact battery (BC battery) is a photovoltaic cell technology that places both the PN junction and the metal contact on the back of the cell, thereby maximizing the utilization of incident light, reducing optical losses, and improving photoelectric conversion efficiency.

[0003] To ensure the safety and reliability of BC batteries in actual use, it is necessary to perform current and voltage testing (IV testing), electroluminescence testing (EL testing), and infrared testing (IR testing) on ​​BC batteries before they leave the factory.

[0004] In related technologies, multiple detection devices are used to inspect BC batteries, which requires the batteries to be repeatedly transported and transferred on a conveyor belt, increasing the risk of scratches. Furthermore, multiple detection devices occupy a significant amount of space, reducing the effective utilization of space.

[0005] Therefore, how to reduce the number of times the BC battery flows during detection while reducing the area occupied by the detection device is a technical problem that urgently needs to be solved.

[0006] It should be noted that the information disclosed in this background section is only for understanding the background technology of the present application concept, and therefore, the above description is not considered to constitute prior art information. Utility Model Content

[0007] This disclosure provides at least one BC battery testing device.

[0008] In a first aspect, embodiments of this disclosure provide a BC battery testing device, comprising:

[0009] Feeding conveyor line, used for feeding BC batteries;

[0010] The discharge conveyor line is used for unloading BC batteries;

[0011] The rotating mechanism includes a loading station, a first inspection station, a second inspection station, and a unloading station;

[0012] The discharge port of the feeding conveyor is located in the loading station, and the inlet of the discharge conveyor is located in the unloading station.

[0013] The IV-EL testing unit is located in the first testing station and is used to perform IV and EL testing on BC batteries.

[0014] An IR detection mechanism is set up in the second detection station and is used to detect the thermal distribution of BC batteries.

[0015] A control module is electrically connected to the IV-EL detection mechanism and the IR detection mechanism respectively, and is configured to control the IV-EL detection mechanism and the IR detection mechanism to detect the BC battery.

[0016] In one optional embodiment, the rotating mechanism includes:

[0017] Rotating disk and rotating motor;

[0018] The rotary disk is positioned above the discharge port of the feeding conveyor line and the loading port of the discharge conveyor line, and is connected to the rotor of the rotating motor.

[0019] The rotating mechanism is equipped with an adsorption element, which is used to adsorb BC batteries.

[0020] The rotating motor is used to drive the rotating disk to rotate, thereby causing the BC batteries adsorbed by the adsorption element to flow through the loading station, the first detection station, the second detection station, and the unloading station.

[0021] In one optional embodiment, the adsorption element includes:

[0022] An adsorption plate having multiple adsorption holes;

[0023] A negative pressure pump is connected to the adsorption hole via a pipe.

[0024] In one optional embodiment, the number of adsorption elements is four;

[0025] The four adsorption elements are arranged in a circumferential array on the rotating disk.

[0026] In one optional implementation, the IV-EL testing apparatus includes:

[0027] The first movable plate, the first UVW module, the first lifting assembly, and the first probe plate;

[0028] The first lifting component is mounted on the first movable plate;

[0029] The first probe plate is mounted on the first lifting assembly;

[0030] The first UVW module is positioned below the first movable plate;

[0031] Under the control of the control module, the first UVW module adjusts the position of the first probe plate on the horizontal plane so that the probe array on the first probe plate is aligned with the grid line of the BC battery on the first detection station.

[0032] The first lifting component adjusts the height of the first probe plate under the control of the control module, so that the probe array on the first probe plate contacts the grid line of the BC battery at the first detection station for subsequent IV and EL detection.

[0033] In one optional implementation, the IR detection mechanism includes:

[0034] The second movable plate, the second UVW module, the second lifting assembly, and the second probe plate;

[0035] The second lifting component is mounted on the second movable plate;

[0036] The second probe plate is mounted on the second lifting assembly;

[0037] The second UVW module is positioned below the second movable plate;

[0038] Under the control of the control module, the second UVW module adjusts the position of the second probe plate on the horizontal plane so that the probe array on the second probe plate is aligned with the grid line of the BC battery on the second detection station.

[0039] The second lifting component adjusts the height of the second probe plate under the control of the control module, so that the probe array on the second probe plate contacts the grid line of the BC battery on the second detection station for subsequent IR detection mechanism.

[0040] In one optional implementation, the feed conveyor line includes:

[0041] Conveyor rack;

[0042] A conveying assembly, which is mounted on the conveying frame and is used to convey BC batteries;

[0043] The lifting mechanism is located below the conveying assembly and directly below the loading station, and is used to push the BC batteries upward into the loading station.

[0044] In one alternative embodiment, the conveying assembly includes a first conveyor belt, a second conveyor belt, and a drive motor;

[0045] The first conveyor belt and the second conveyor belt are arranged side by side and are mounted on the slide rail of the conveyor frame by a slider;

[0046] The drive motor drives the first conveyor belt and the second conveyor belt to work under the control of the control module;

[0047] The lifting mechanism is disposed between the first conveyor belt and the second conveyor belt, and is located below the BC batteries conveyed on the first conveyor belt and the second conveyor belt.

[0048] In one optional implementation, the lifting mechanism includes:

[0049] The lifting platform has multiple supporting components on its top surface;

[0050] A lifting cylinder is located below the lifting plate.

[0051] In one alternative embodiment, the rotating mechanism further includes a light source;

[0052] The light source is positioned above the loading station.

[0053] The beneficial effects of this utility model are that the BC battery testing device uses a rotating mechanism to transfer the BC battery to multiple stations to complete IV testing, EL testing, and IR testing. One testing device can meet the testing requirements of BC batteries, reducing the number of times the BC battery is transferred and reducing the risk of the BC battery being scratched. At the same time, by setting the three testing structures in the same testing device, the space required for BC battery testing is reduced, and the effective utilization rate of space is improved.

[0054] Other features and advantages of this invention will be set forth in the description which follows, and will be apparent in part from the description, or may be learned by practicing the invention. The objectives and other advantages of this invention are realized and obtained through the structures particularly pointed out in the description and the accompanying drawings.

[0055] To make the above-mentioned objectives, features and advantages of this utility model more apparent and understandable, preferred embodiments are described in detail below with reference to the accompanying drawings. Attached Figure Description

[0056] To more clearly illustrate the specific embodiments of this utility model or the technical solutions in the prior art, the drawings used in the description of the specific embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are some embodiments of this utility model. For those skilled in the art, other drawings can be obtained from these drawings without creative effort.

[0057] Figure 1 This is a schematic diagram of the BC battery testing device provided in an embodiment of this disclosure;

[0058] Figure 2 A side view of the feeding conveyor line and rotating mechanism provided in an embodiment of this disclosure;

[0059] Figure 3 This is a partial structural schematic diagram of the feeding conveyor line provided in an embodiment of the present disclosure;

[0060] Figure 4 This is a schematic diagram of the lifting mechanism provided in an embodiment of the present disclosure;

[0061] Figure 5 This is a schematic diagram of the structure of the IV-EL testing mechanism provided in the embodiments of this disclosure;

[0062] Figure 6 This is a schematic diagram of the structure of the IR detection mechanism provided in the embodiments of this disclosure;

[0063] Figure 7 This is a schematic diagram of the structure of the adsorption plate provided in an embodiment of this disclosure.

[0064] In the diagram: 100, Feeding conveyor line; 110, Conveyor frame; 120, Conveying assembly; 121, First conveyor belt; 122, Second conveyor belt; 123, Drive motor; 124, Slider; 125, Slide rail; 130, Lifting mechanism; 131, Lifting plate; 1311, Support component; 132, Lifting cylinder; 200, Discharge conveyor line; 300, Rotating mechanism; 310, Rotary disk; 311, Adsorption component; 311a, Adsorption plate; 3 11a1 - Adsorption pore; 311b - Negative pressure pump; 320 - Rotary motor; 330 - Light source; 400 - IV-EL detection mechanism; 410 - First moving plate; 420 - First UVW module; 430 - First lifting assembly; 440 - First probe plate; 500 - IR detection mechanism; 510 - Second moving plate; 520 - Second UVW module; 530 - Second lifting assembly; 540 - Second probe plate; 600 - BC battery. Detailed Implementation

[0065] To make the objectives, technical solutions, and advantages of the embodiments of this utility model clearer, the technical solutions of this utility model will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this utility model, not all embodiments. Based on the embodiments of this utility model, all other embodiments obtained by those skilled in the art without creative effort are within the protection scope of this utility model.

[0066] In this document, when it is said that the first component is located on the second component, this can mean that the first component can be directly formed on the second component, or that the third component can be inserted between the first component and the second component.

[0067] It should be noted that similar reference numerals and letters in the following figures indicate similar items; therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures. Furthermore, in the figures, the thickness of parts may be exaggerated or reduced for the purpose of effectively depicting the technical content.

[0068] The following detailed description, with reference to the accompanying drawings, describes some embodiments of the present invention. Unless otherwise specified, the following embodiments and features can be combined with each other.

[0069] Please see Figure 1 and Figure 2 At least one embodiment provides a BC battery 600 testing device, including a feeding conveyor line 100, a discharging conveyor line 200, a rotating mechanism 300, an IV-EL testing mechanism 400, an IR testing mechanism 500, and a control module. The rotating mechanism 300 transfers the BC battery 600 through multiple stations to complete IV, EL, and IR testing. A single testing device can meet the testing requirements of the BC battery 600, reducing the number of transfers and the risk of scratches. Furthermore, by integrating the three testing structures within the same device, the space required for BC battery testing is reduced, improving space utilization.

[0070] A control module is electrically connected to both the IV-EL detection mechanism 400 and the IR detection mechanism 500, and is configured to allow the IV-EL detection mechanism 400 and the IR detection mechanism 500 to detect BC batteries. The control module can be, but is not limited to, a computer or an industrial control computer, and stores relevant control programs to control the operation of the IV-EL detection mechanism 400 and the IR detection mechanism 500.

[0071] Among them, the feeding conveyor line 100 is used for feeding BC batteries 600.

[0072] Please see Figure 2 and Figure 3 Specifically, the feeding conveyor line 100 includes the following mechanisms:

[0073] The conveyor frame 110 is a three-dimensional frame supported by profiles, which is used to support the conveyor assembly 120.

[0074] A conveying assembly 120 is disposed on the conveying frame 110 and is used to convey the BC battery 600.

[0075] The conveying assembly 120 includes a first conveyor belt 121, a second conveyor belt 122, and a drive motor 123; the first conveyor belt 121 and the second conveyor belt 122 are arranged side by side and are mounted on the slide rail 125 of the conveying frame 110 by a slider 124.

[0076] The drive motor 123 drives the first conveyor belt 121 and the second conveyor belt 122 to work under the control of the control module, thereby completing the conveying of the BC battery 600.

[0077] The lifting mechanism 130 is disposed between the first conveyor belt 121 and the second conveyor belt 122, and is located below the BC battery 600 conveyed on the first conveyor belt 121 and the second conveyor belt 122. The lifting mechanism 130 is disposed between the first conveyor belt 121 and the second conveyor belt 122 to avoid interfering with the operation of the conveying assembly 120.

[0078] Please see Figure 3 and Figure 4 The lifting mechanism 130 is located below the conveying assembly 120 and directly below the loading station, and is used to push the BC battery 600 upward into the loading station.

[0079] The lifting plate 131 has multiple support members 1311 on its top surface.

[0080] The support member 1311 has an adjustable height and a rubber pad on its top to reduce scratches on the BC battery 600.

[0081] A lifting cylinder 132 is located below the lifting plate 131 and is used to drive the lifting plate 131 to rise and fall in the following direction: Figure 4 As shown in F.

[0082] Please continue reading. Figure 1 The discharge conveyor line 200 is used for unloading BC batteries 600. The structure of the discharge conveyor line 200 is similar to that of the feed conveyor line 100.

[0083] Please continue reading. Figure 1 The rotating mechanism 300 includes a loading station, a first inspection station, a second inspection station, and a unloading station.

[0084] The discharge port of the feeding conveyor line 100 is located in the loading station, and the feed port of the discharging conveyor line 200 is located in the unloading station.

[0085] The IV-EL testing unit 400 is located in the first testing station and is used to perform IV and EL testing on the BC battery 600.

[0086] An IR detection unit 500 is installed in the second detection station and is used to detect the thermal distribution of the BC battery 600.

[0087] Please continue reading. Figure 1 The structure of the rotating mechanism 300 is described below:

[0088] The rotating mechanism 300 includes a rotating disk 310 and a rotating motor 320.

[0089] The rotating disk 310 is positioned above the discharge port of the infeed conveyor line 100 and the loading port of the discharge conveyor line 200, and is connected to the rotor of the rotary motor 320. The rotary motor 320 drives the rotating disk 310 to rotate, rotating 90° each time, in the following direction: Figure 1 As shown in F, this completes the switching of workstations.

[0090] The rotating mechanism 300 is equipped with an adsorption element 311, which is used to adsorb the BC battery 600. During testing, the BC battery 600 remains adsorbed on the rotating mechanism 300, thereby reducing the number of times the BC battery 600 needs to be removed and placed, and further reducing the probability of scratches.

[0091] The rotating motor 320 is used to drive the rotating disk 310 to rotate, thereby causing the BC battery 600 adsorbed by the adsorption component 311 to flow through the loading station, the first detection station, the second detection station and the unloading station.

[0092] To improve the image accuracy of the BC battery 600 captured by the vision camera as it enters the rotating mechanism 300, the rotating mechanism 300 also includes a light source 330; the light source 330 is positioned above the loading station. By providing supplemental lighting to the BC battery 600, the image accuracy captured by the vision camera is improved, enabling precise positioning of the BC battery 600. This also facilitates subsequent adjustments to the positions of the first probe plate 440 and the second probe plate 540 by the IV-EL inspection mechanism 400 and the IR inspection mechanism 500.

[0093] It should be noted that the control module obtains the position information of the BC battery 600 adsorbed by the adsorption component 311 based on the image captured by the vision camera, thereby controlling the first UVW module 420 and the second UVW module 520 to adjust the position of the corresponding first probe plate 440 and second probe plate 540.

[0094] Please continue reading. Figure 1The adsorption component 311 includes: an adsorption plate 311a with multiple adsorption holes 311a1; and a negative pressure pump 311b connected to the adsorption holes 311a1 via a pipe. Negative pressure adsorption is used to circulate the BC battery 600, thereby reducing scratches on the BC battery 600. A schematic diagram of the adsorption plate 311a is shown below. Figure 7 As shown.

[0095] The number of adsorption elements 311 is four; the four adsorption elements 311 are arranged in a circumferential array on the rotating disk 310. Each adsorption element 311 corresponds to a work station below it. When the rotating motor drives the rotating disk 310 to rotate, the adsorption elements 311 are moved between different work stations.

[0096] Please see Figure 5 The IV-EL testing mechanism 400 is described below. The IV-EL testing mechanism 400 includes: a first moving plate 410, a first UVW module 420, a first lifting assembly 430, and a first probe plate 440. Both IV and EL testing are performed using the current and voltage values ​​detected by the first probe plate 440. A corresponding image acquisition module is also provided to photograph the BC battery 600 after it is powered on, thus completing the EL testing. The specific testing principle is prior art and will not be described in this embodiment.

[0097] The structure and principle of the first UVW module 420 are largely the same as the mesh frame adjustment mechanism in the patent with publication number CN215620732U. The difference is that the first UVW module 420 is used to adjust the position of the first probe plate 440 so that the probe array on the first probe plate 440 can be closely attached to the grid line of the BC battery 600.

[0098] Meanwhile, the first UVW module 420 is used to adjust the position of the first probe plate 440, eliminating the need to adjust the position of the BC battery 600 and preventing the BC battery 600 from being scratched during position adjustment.

[0099] The first lifting assembly 430 is disposed on the first moving plate 410; the first probe plate 440 is disposed on the first lifting assembly 430; and the first UVW module 420 is disposed below the first moving plate 410.

[0100] Since the position of the BC battery 600 adsorbed by the adsorption component 311 is uncertain, the first UVW module 420 adjusts the position of the first probe plate 440 on the horizontal plane under the control of the control module during each test, so that the probe array on the first probe plate 440 is aligned with the grid lines of the BC battery 600 at the first test station. This eliminates the need to adjust the position of the BC battery 600, reducing the risk of scratching the BC battery 600.

[0101] Under the control of the control module, the first lifting component 430 adjusts the height of the first probe plate 440 so that the probe array on the first probe plate 440 contacts the grid line of the BC battery 600 at the first detection station for subsequent IV and EL detection.

[0102] Please see Figure 6 The structure of the IR detection mechanism 500 is described below. The IR detection mechanism 500 includes: a second moving plate 510, a second UVW module 520, a second lifting assembly 530, and a second probe plate 540. IR detection captures thermal images of the BC battery 600 through a corresponding image acquisition module to detect whether the thermal distribution of the BC battery 600 is abnormal. The specific detection process is prior art and will not be described in this embodiment.

[0103] The structure and principle of the second UVW module 520 are similar to those of the first UVW module 420, and will not be described in detail here.

[0104] The second lifting assembly 530 is disposed on the second moving plate 510, the second probe plate 540 is disposed on the second lifting assembly 530, and the second UVW module 520 is disposed below the second moving plate 510.

[0105] Under the control of the control module, the second UVW module 520 adjusts the position of the second probe plate 540 on the horizontal plane so that the probe array on the second probe plate 540 is aligned with the grid line of the BC battery 600 on the second detection station.

[0106] Under the control of the control module, the second lifting component 530 adjusts the height of the second probe plate 540 so that the probe array on the second probe plate 540 contacts the grid line of the BC battery 600 on the second detection station for subsequent IR detection mechanism 500.

[0107] In summary, this utility model provides a BC battery 600 testing device, including an infeed conveyor line 100, an outfeed conveyor line 200, a rotating mechanism 300, an IV-EL testing mechanism 400, and an IR testing mechanism 500. The rotating mechanism 300 allows the BC battery 600 to be transferred between multiple stations, completing IV, EL, and IR testing. A single testing device can meet the testing requirements of the BC battery 600, reducing the number of transfers and the risk of scratches. Furthermore, by integrating the three testing structures within the same device, the space required for BC battery testing is reduced, improving the effective utilization of space.

[0108] Based on the above-described preferred embodiments of this utility model, and through the foregoing description, those skilled in the art can make various changes and modifications without departing from the technical concept of this utility model. The technical scope of this utility model is not limited to the contents of the specification, but must be determined according to the scope of the claims.

Claims

1. A BC battery testing device, characterized in that, include: Feeding conveyor (100) for feeding BC batteries (600); The discharge conveyor line (200) is used for unloading BC batteries (600); The rotating mechanism (300) includes a loading station, a first inspection station, a second inspection station, and a unloading station; The discharge port of the feeding conveyor (100) is located in the loading station, and the feed port of the discharge conveyor (200) is located in the unloading station. IV-EL testing unit (400) is set in the first testing station and is used to perform IV and EL testing on BC batteries (600); An IR testing unit (500) is installed in the second testing station and is used to perform thermal distribution testing on the BC battery (600); A control module is electrically connected to the IV-EL detection mechanism (400) and the IR detection mechanism (500) respectively, and is configured to control the IV-EL detection mechanism (400) and the IR detection mechanism (500) to detect the BC battery.

2. The BC battery testing device as described in claim 1, characterized in that, The rotating mechanism (300) includes: Rotary disk (310) and rotating motor (320); The rotary disk (310) is located above the discharge port of the feed conveyor line (100) and the loading port of the discharge conveyor line (200), and is connected to the rotor of the rotary motor (320). The rotating mechanism (300) is provided with an adsorption element (311), and the adsorption element (311) is used to adsorb the BC battery (600); The rotating motor (320) is used to drive the rotating disk (310) to rotate, thereby driving the BC battery (600) adsorbed by the adsorption component (311) to flow through the loading station, the first detection station, the second detection station and the unloading station.

3. The BC battery testing device as described in claim 2, characterized in that, The adsorption element (311) includes: The adsorption plate (311a) has multiple adsorption holes (311a1). A negative pressure pump (311b) is connected to the adsorption hole (311a1) via a pipe.

4. The BC battery testing device as described in claim 2, characterized in that, The number of adsorption elements (311) is four; The four adsorption elements (311) are arranged in a circumferential array on the rotating disk (310).

5. The BC battery testing device as described in claim 1, characterized in that, The IV-EL testing facility (400) includes: The first movable plate (410), the first UVW module (420), the first lifting assembly (430) and the first probe plate (440). The first lifting assembly (430) is mounted on the first movable plate (410); The first probe plate (440) is disposed on the first lifting assembly (430); The first UVW module (420) is disposed below the first movable plate (410); Under the control of the control module, the first UVW module (420) adjusts the position of the first probe plate (440) on the horizontal plane so that the probe array on the first probe plate (440) is aligned with the grid line of the BC battery (600) on the first detection station. The first lifting assembly (430) adjusts the height of the first probe plate (440) under the control of the control module, so that the probe array on the first probe plate (440) contacts the grid line of the BC battery (600) on the first detection station for subsequent IV detection and EL detection.

6. The BC battery testing device as described in claim 1, characterized in that, The IR detection mechanism (500) includes: The second moving plate (510), the second UVW module (520), the second lifting assembly (530), and the second probe plate (540); The second lifting assembly (530) is mounted on the second movable plate (510); The second probe plate (540) is disposed on the second lifting assembly (530); The second UVW module (520) is disposed below the second movable plate (510); The second UVW module (520) is positioned on the horizontal plane of the second probe plate (540) under the control of the control module, so that the probe array on the second probe plate (540) is aligned with the grid line of the BC battery (600) on the second detection station; The second lifting assembly (530) adjusts the height of the second probe plate (540) under the control of the control module, so that the probe array on the second probe plate (540) contacts the grid line of the BC battery (600) on the second detection station, so as to provide a subsequent IR detection mechanism (500).

7. The BC battery testing device as described in claim 1, characterized in that, The feeding conveyor line (100) includes: Conveyor frame (110); A conveying assembly (120) is disposed on the conveying frame (110) and is used to convey BC batteries (600); The lifting mechanism (130), which is located below the conveying assembly (120) and directly below the loading station, is used to push the BC battery (600) upward into the loading station.

8. The BC battery testing device as described in claim 7, characterized in that, The conveying assembly (120) includes a first conveyor belt (121), a second conveyor belt (122), and a drive motor (123); The first conveyor belt (121) and the second conveyor belt (122) are arranged side by side and are mounted on the slide rail (125) of the conveyor frame (110) by a slider (124); The drive motor (123) drives the first conveyor belt (121) and the second conveyor belt (122) to work under the control of the control module; The lifting mechanism (130) is disposed between the first conveyor belt (121) and the second conveyor belt (122), and is located below the BC batteries (600) conveyed on the first conveyor belt (121) and the second conveyor belt (122).

9. The BC battery testing device as described in claim 7, characterized in that, The lifting mechanism (130) includes: The lifting plate (131) has multiple support components (1311) on its top surface. A lifting cylinder (132) is located below the lifting plate (131).

10. The BC battery testing device as described in claim 1, characterized in that, The rotating mechanism (300) also includes a light source (330); The light source (330) is positioned above the loading station.

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