A simulation test device for a small assembly of BC batteries

Abstract

The application discloses a simulation testing device for a BC battery small-size assembly, which comprises a testing cavity, a driving assembly, a lamp box and two lamp assembly components arranged in the testing cavity. The lamp box comprises a containing cavity for mounting the lamp assembly components and a lighting opening for exposing the lamp assembly components. Two sides of the top of the containing cavity are respectively provided with containing areas for respectively containing two lamp assembly components. The driving assembly is suitable for driving any one of the lamp assembly components to move into or out of the lighting opening, and the other lamp assembly component is in the containing cavity. When the lamp assembly component enters the lighting opening, a seal is formed between the lamp assembly component and the lighting opening, so that the lamp assembly component in the containing cavity is separated from the testing cavity. When illumination testing is performed, through the design of the lamp box, only the lamp assembly component needed is stretched into the testing cavity through the lighting opening during testing, so that the service life of the lamp assembly component can be effectively guaranteed.

Description

Technical Field

[0001] This application relates to the field of photovoltaic technology, and in particular to a simulation test apparatus for a BC cell small module. Background Technology

[0002] Unlike traditional PERC and TOPCon batteries, BC batteries print both the positive and negative electrodes on the back, with no grid lines on the front. This solves the problem of light blocking by the main grid, fine grid, and electrode points on the front, increasing the light absorption rate by 3% to 5%.

[0003] BC cells, combined with OBB (Obstacle-Free) technology, can form more efficient photovoltaic modules. The testing phase includes electrical performance testing (i.e., illumination testing) using a solar simulator, accelerated aging testing, and damp heat cycling testing. These tests assess the reliability of small BC cell modules, providing data and theoretical support for subsequent research and development and production. Illumination and aging tests are typically conducted using different types of lighting fixtures. Since the testing environment needs to simulate high humidity and high temperature scenarios, this has an adverse effect on lighting fixtures with poor heat dissipation, accelerating their aging. How to address this impact is a pressing issue in the field of BC cell testing equipment. Utility Model Content

[0004] The purpose of this application is to provide a BC battery simulation test device that can switch between different lamps for lighting and aging tests.

[0005] To achieve the above objectives, the technical solution adopted in this application is as follows: a simulation testing device for a small BC battery component, comprising a test chamber, wherein a driving component, a light box, and two lighting components are disposed within the test chamber. The light box includes a receiving cavity for mounting the lighting components and an illumination port for exposing the lighting components. The top sides of the receiving cavity are respectively provided with accommodating areas to accommodate the two lighting components respectively. The driving component is adapted to drive any one of the lighting components to move to enter or leave the illumination port, while the other lighting component is located in the receiving cavity. When the lighting component enters the illumination port, a seal is formed between it and the illumination port, thereby separating the lighting component in the receiving cavity from the test chamber.

[0006] As a preferred embodiment, the drive assembly is installed in the receiving cavity, and the drive assembly is connected to and controls the movement of the lamp assembly in the receiving cavity.

[0007] As a preferred embodiment, the light box further includes a conductive part disposed on the side wall of the lighting opening, and the lighting assembly enters the lighting opening to make the conductive part and the lighting assembly conductive.

[0008] As a preferred embodiment, the lamp assembly includes a lamp housing, a lamp body, and a snap-fit ​​structure. The lamp body is mounted on the lamp housing, and the snap-fit ​​structure is formed at the edge of the lamp housing. The lamp housing and the lighting opening are shaped to fit together. During installation, the lamp housing and the lighting opening are aligned and fitted together, while the snap-fit ​​structure is attached to the top of the lighting opening to form a seal.

[0009] As a preferred embodiment, the light box further includes a partition for isolating the lighting components and a heat dissipation channel for air circulation.

[0010] As a preferred embodiment, two lamp components are provided, and the driving component includes a first displacement part for lateral movement and a second displacement part for lifting. Two driving components are also provided for each of the two lamp components, and the two driving components drive the two lamp components to move respectively.

[0011] As a preferred embodiment, both the first displacement part and the second displacement part are cylinders or hydraulic rods, and the second displacement part is fixed to the first displacement part. The second displacement part and the lamp assembly are fixedly installed. The driving assembly also includes a guide rail part for limiting the movement of the lamp assembly. The guide rail part is T-shaped, and the two lamp assemblies are respectively located at both ends of the T-shaped guide rail part. During testing, the first displacement part drives one of the lamp assemblies to move laterally to the middle of the guide rail part, and then the second displacement part moves it vertically to allow the lamp assembly to enter the lighting opening.

[0012] As a preferred embodiment, the simulation testing device for the BC battery miniature component further includes a humidity control component, a temperature control component, a circulation component, and a through hole disposed on the cavity wall of the test chamber. The circulation component and the through hole are used to provide channels and power for airflow to control the accumulation and dissipation of humidity and / or temperature.

[0013] As a preferred embodiment, the humidity control component includes a water vapor generator and a humidity recognition unit. The water vapor generator is disposed below the test chamber, and the humidity recognition unit is adapted to monitor the humidity inside the test chamber and to control the water vapor output of the water vapor generator. The circulation component is disposed on one side outside the test chamber.

[0014] As a preferred embodiment, the temperature control component includes a heat generator and a temperature recognition unit. Both the heat generator and the circulation component are disposed on the side of the test chamber. The temperature recognition unit is adapted to monitor the temperature inside the test chamber and to control the heat generation of the heat generator.

[0015] Compared with the prior art, the beneficial effects of this application are as follows: During illumination testing, the lightbox design ensures that only the necessary lighting components are inserted into the test chamber through the illumination port, while the other lighting component remains in its housing and is not connected to the test chamber. Therefore, it is less affected by environmental factors such as humidity and heat, effectively guaranteeing the lifespan of the lighting components. Attached Figure Description

[0016] Figure 1 This is a schematic diagram of the overall structure of one embodiment of this application.

[0017] Figure 2 yes Figure 1 A structural diagram showing the opening of the case door.

[0018] Figure 3 yes Figure 2 A schematic diagram of the internal structure of the light box above the central lighting port.

[0019] Figure 4 This is a schematic diagram of part of the internal structure of the test chamber.

[0020] In the diagram: 1. Test box; 2. Test chamber; 3. BC battery; 4. Through hole; 5. Illumination port; 6. First displacement part; 7. Second displacement part; 8. Guide rail part; 9. Lamp assembly; 10. Lamp box; 11. Receiving cavity; 12. Temperature control assembly; 13. Humidity control assembly. Detailed Implementation

[0021] The present application will be further described below with reference to specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0022] In the description of this application, it should be noted that the terms "center", "lateral", "longitudinal", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc., which indicate the orientation and positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and should not be construed as limiting the specific protection scope of this application.

[0023] It should be noted that the terms "first," "second," etc., in the specification and claims of this application are used to distinguish similar objects and are not necessarily used to describe a specific order or sequence.

[0024] The terms “comprising” and “having”, and any variations thereof, in the specification and claims of this application are intended to cover non-exclusive inclusion, for example, a process, method, system, product, or device that includes a series of steps or units is not necessarily limited to those steps or units that are explicitly listed, but may include other steps or units that are not explicitly listed or that are inherent to such process, method, product, or device.

[0025] This application proposes a simulation testing device for BC battery small modules, mainly for simulating and testing the pass rate of BC battery modules in multiple items. The test items mainly include simulated light exposure test to measure conversion efficiency, simulated rapid aging test by EV light exposure, and simulated damp heat condition for weather resistance test.

[0026] This simulation testing device mainly consists of a main body and a test chamber 2 formed on the main body. The bottom of the main body can be equipped with casters with brakes for easy movement. Components for creating various simulated environments, such as humidity and temperature control components, can be added to the outside of the test chamber 2. The BC battery 3 is mainly housed inside the test chamber 2, and various tests are conducted on the BC battery 3 using the simulated environments.

[0027] When conducting simulation tests, such as Figure 2 , Figure 4 As shown, an adjustment bracket can be provided for mounting the BC battery 3 to adjust the actual mounting angle of the BC battery 3 miniature assembly. The adjustment bracket can be selected as needed, and its specific structure is not limited in this application. The actual test was conducted on the miniature assembly of the BC battery, which was formed by fixing multiple BC batteries using OBB dispensing and encapsulation technology.

[0028] like Figure 1 , Figure 3 As shown, the test chamber 2 is equipped with a drive assembly, a lamp housing 10, and two lamp assemblies 9. The lamp housing 10 includes a receiving cavity 11 for mounting the lamp assembly 9 and an illumination port 5 for exposing the lamp assembly 9. The drive assembly is adapted to drive one of the lamp assemblies 9 to move into or out of the illumination port 5, while the other lamp assembly 9 is located in the receiving cavity 11. When the lamp assembly 9 enters the illumination port 5, the two form a seal, so that the receiving cavity 11 and the test chamber 2 are not interconnected. The drive assembly is installed in the receiving cavity 11 and connects to and controls the movement of the lamp assembly 9 within the receiving cavity 11.

[0029] This simulation testing device includes conventional illumination testing and ultraviolet irradiation aging testing simulation. Since the testing environment needs to simulate high humidity and high temperature scenarios, this has a further accelerated aging effect on lamps with poor heat dissipation performance. Conventional illumination testing is used to test parameters such as the photoelectric conversion of the BC battery 3, while ultraviolet irradiation mainly tests its weather resistance and lifespan; the two are generally not performed simultaneously. Therefore, if another lamp is also in the test chamber 2 and subjected to a humid and hot environment during one test, it will have an aging effect on the lamp component 9 used for testing. This application, through the design of the lamp box 10, ensures that only the lamp component 9 needed is extended into the test chamber 2 through the illumination port 5 during testing. The other lamp component 9 is housed in the lamp component 9 receiving cavity 11 and is not interconnected with the test chamber 2. Therefore, it is less affected by environmental factors such as humidity and heat, effectively ensuring the lifespan of the lamp component 9.

[0030] Of course, the above-mentioned conventional light exposure test and ultraviolet irradiation aging test can be replaced with tests for other specific lights. It should be noted that for convenience, only two lamp components 9 are usually set. If you want to set multiple, you need to make adaptive changes to the drive components.

[0031] To facilitate conductivity of the light box 10, the light box 10 also includes a conductive part, which is disposed on the side wall of the lighting opening 5. The lighting assembly 9 enters the lighting opening 5 to make the conductive part and the lighting assembly 9 conductive. The lighting assembly 9 is provided with corresponding electrodes corresponding to the conductive part. The conductive part is connected to a power source. When the driving component drives the lighting assembly 9 to move to the lighting opening 5, the electrodes of the lighting assembly 9 and the conductive part are automatically connected, thereby automatically powering on and starting the corresponding lighting assembly 9.

[0032] The preferred luminaire assembly 9 includes a luminaire housing, a luminaire body, and a snap-fit ​​structure. The luminaire body is mounted on the luminaire housing, and the snap-fit ​​structure is formed at the edge of the luminaire housing. The luminaire housing and the lighting port 5 are shaped to fit together. During installation, the luminaire housing and the lighting port 5 are aligned, and the snap-fit ​​structure is pressed against the top of the lighting port 5 to form a seal. The main function of the snap-fit ​​structure is to form a seal when the luminaire assembly 9 moves to the lighting port 5, thereby ensuring that the lamp box 10 and the test chamber 2 are not interconnected.

[0033] The preferred lamp box 10 also includes a heat dissipation channel for air circulation. The main purpose of the lamp box 10 is to isolate the entire lamp box 10 from the environment surrounding the test chamber 2. Since the test chamber 2 requires humidification and heating, it is generally necessary to provide through holes in the wall of the test chamber 2 to allow the circulation of hot and humid air. However, the lamp assembly 9 also generates heat during long-term operation. Therefore, providing a heat dissipation channel can help dissipate heat inside the lamp box 10. This heat dissipation channel preferably extends both the inlet and outlet to the outside of this simulation test device through pipes, and an air pump or fan can be installed to promote air circulation.

[0034] To facilitate the design of the drive structure, two lamp assemblies 9 are provided: a xenon lamp to simulate normal illumination and a UV lamp for aging tests. The drive assembly includes a first displacement section 6 for lateral movement and a second displacement section 7 for lifting. Two drive assemblies are also provided for each of the two lamp assemblies 9, each driving the other two lamp assemblies 9 to move. The UV lamp can also be used in conjunction with humidity and heat simulation environments to test the weather resistance of the BC battery 3 in relatively harsh environments.

[0035] Preferably, both the first displacement part 6 and the second displacement part 7 are cylinders or hydraulic rods, and the second displacement part 7 is fixed to the first displacement part 6. The second displacement part 7 and the lamp assembly 9 are fixedly installed. The drive assembly also includes a guide rail part 8 for limiting the movement of the lamp assembly 9. The guide rail part 8 is T-shaped, and the two lamp assemblies 9 are located at the two ends of the T-shaped guide rail part 8. Figure 3 As shown, during the test, the first displacement part 6 first moves the left lamp assembly 9 laterally to the middle of the guide rail part 8 (from the dotted line position on the left to the middle), and then moves it vertically through the second displacement part 7 to make the lamp assembly 9 enter the lighting port 5. At this time, the lamp assembly 9 channel is illuminated to simulate light, while the right lamp assembly 9 is in the light box 10 to ensure that it is separated from the test chamber 2.

[0036] like Figure 4 As shown, the simulation testing device for the BC battery 3 small component also includes a humidity control component 13, a temperature control component 12, a circulation component, and a through-hole 4 disposed on the cavity wall of the test chamber 2. The circulation component and the through-hole 4 provide channels and power for airflow to control the accumulation and dissipation of humidity and / or temperature. The humidity control component 13 includes a water vapor generator and a humidity recognition unit. The water vapor generator is disposed below the test chamber 2, and the humidity recognition unit is adapted to monitor the humidity inside the test chamber 2 and to control the water vapor output of the water vapor generator. The circulation component is disposed on one side outside the test chamber 2. The temperature control component 12 includes a heat generator and a temperature recognition unit. Both the heat generator and the circulation component are disposed on the side of the test chamber 2. The temperature recognition unit is adapted to monitor the temperature inside the test chamber 2 and to control the heat generation of the heat generator. The humidity control component 13, temperature control component 12, circulation component, and through-hole 4 can refer to existing devices such as the dual 85 test chamber 1. The principles of temperature and humidity control, the circulation component for controlling airflow, and the through-hole 4 will not be elaborated further.

[0037] When the heat generation part of the temperature control component 12 is located on the side wall of the test chamber 2, hot air can be horizontally delivered to the location of the small component of BC battery 3 through the circulation component. Compared with the heat generation part being located below the small component of BC battery 3, the heat will not be blocked by the bottom surface of BC battery 3 with a larger bottom area, thus preventing poor temperature flow and uneven temperature in the test chamber 2.

[0038] The basic principles, main features, and advantages of this application have been described above. Those skilled in the art should understand that this application is not limited to the above embodiments. The embodiments and descriptions in the specification are merely the principles of this application. Various changes and modifications can be made to this application without departing from its spirit and scope, and all such changes and modifications fall within the scope of the claims. The scope of protection claimed by this application is defined by the appended claims and their equivalents.

Claims

1. A simulation testing device for a small BC battery component, characterized in that, The test chamber includes a driving assembly, a light box, and two lighting assemblies. The light box includes a receiving cavity for mounting the lighting assemblies and an illumination opening for exposing the lighting assemblies. The top sides of the receiving cavity are respectively provided with accommodating areas to accommodate the two lighting assemblies. The driving assembly is adapted to drive any one of the lighting assemblies to move into or out of the illumination opening, while the other lighting assembly is located in the receiving cavity. When the lighting assembly enters the illumination opening, a seal is formed between it and the illumination opening, thereby separating the lighting assembly in the receiving cavity from the test chamber.

2. The simulation testing apparatus for BC battery miniature components as described in claim 1, characterized in that, The drive assembly is installed in the receiving cavity, and the drive assembly is connected to and controls the movement of the lamp assembly in the receiving cavity.

3. The simulation testing apparatus for BC battery miniature components as described in claim 2, characterized in that, The light box also includes a conductive part disposed on the side wall of the lighting opening, and the lighting assembly enters the lighting opening to make the conductive part and the lighting assembly conductive.

4. The simulation testing apparatus for BC battery miniature components as described in claim 2, characterized in that, The lighting assembly includes a lighting housing, a lighting body, and a snap-fit ​​structure. The lighting body is mounted on the lighting housing, and the snap-fit ​​structure is formed at the edge of the lighting housing. The lighting housing and the lighting opening are shaped to fit together. During installation, the lighting housing and the lighting opening are aligned and fitted together, while the snap-fit ​​structure is attached to the top of the lighting opening to form a seal.

5. The simulation testing apparatus for BC battery miniature components as described in claim 4, characterized in that, The light box also includes a partition for isolating the lighting components and a heat dissipation channel for air circulation.

6. The simulation testing apparatus for BC battery miniature components as described in claim 2, characterized in that, Two lamp components are provided. The driving component includes a first displacement part for lateral movement and a second displacement part for lifting. Two driving components are also provided for each of the two lamp components. The two driving components drive the two lamp components to move respectively.

7. The simulation testing apparatus for BC battery miniature components as described in claim 6, characterized in that, Both the first displacement part and the second displacement part are cylinders or hydraulic rods, and the second displacement part is fixed on the first displacement part. The second displacement part and the lamp assembly are fixedly installed. The driving assembly also includes a guide rail part for limiting the movement of the lamp assembly. The guide rail part is T-shaped, and the two lamp assemblies are respectively located at both ends of the T-shaped guide rail part. During the test, the first displacement part drives one of the lamp assemblies to move laterally to the middle of the guide rail part, and then the second displacement part moves it vertically to allow the lamp assembly to enter the lighting port.

8. The simulation testing apparatus for BC battery miniature components as described in claim 2, characterized in that, It also includes a humidity control component, a temperature control component, a circulation component, and a through hole disposed on the wall of the test chamber. The circulation component and the through hole are used to provide channels and power for airflow to control the accumulation and dissipation of humidity and / or temperature.

9. The simulation testing apparatus for BC battery miniature components as described in claim 8, characterized in that, The humidity control component includes a water vapor generator and a humidity recognition unit. The water vapor generator is located below the test chamber, and the humidity recognition unit is adapted to monitor the humidity inside the test chamber and to control the water vapor output of the water vapor generator. The circulation component is located outside one side of the test chamber.

10. The simulation testing apparatus for BC battery miniature components as described in claim 8, characterized in that, The temperature control component includes a heat generator and a temperature recognition unit. Both the heat generator and the circulation component are disposed on the side of the test chamber. The temperature recognition unit is adapted to monitor the temperature inside the test chamber and to control the heat generation of the heat generator.

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