Battery structure

Abstract

The utility model relates to a battery structure. The battery structure comprises a battery piece, wherein the battery piece comprises a control battery and a monitoring battery; the control battery is connected with the solar simulator; the monitoring battery is connected with the acquisition device; the control battery and the monitoring battery are independently mounted on a bottom plate, and the control battery and the monitoring battery are arranged in the working range of the solar simulator. By adopting the method, interference of two paths of signals can be avoided, and the detection accuracy is improved.

Description

Technical Field

[0001] This application relates to the field of battery testing, and particularly to a battery structure. Background Art

[0002] The performance evaluation of photovoltaic cells is an important part of the solar energy industry. Among them, the photovoltaic IV (current-voltage) curve test is one of the key indicators for measuring the performance of photovoltaic cells. In such tests, it is crucial to accurately monitor the irradiance on the battery under test, as it directly affects the accuracy and reliability of the test results.

[0003] In the related art, a standard battery with a known photoelectric conversion ratio is used to monitor the irradiance. However, the standard battery is not only used to monitor the irradiance but also to adjust the light source irradiance of the solar simulator, which is prone to signal interference and affects the accuracy of the measurement results. Summary of the Utility Model

[0004] Based on this, in view of the above technical problems, it is necessary to provide a battery structure that can avoid two-way signal interference and improve the accuracy of measurement results.

[0005] In a first aspect, this application provides a battery structure. The battery structure includes:

[0006] Battery cells, including a control battery and a monitoring battery;

[0007] The control battery is connected to the solar simulator;

[0008] The monitoring battery is connected to the acquisition device; the control battery and the monitoring battery are independently installed on the bottom plate, and the control battery and the monitoring battery are arranged within the working range of the solar simulator.

[0009] In one embodiment, the battery structure further includes:

[0010] An amplification module, the input end of the amplification module is connected to the monitoring battery, and the output end of the amplification module is connected to the acquisition device.

[0011] In one embodiment, the battery structure further includes:

[0012] A temperature measuring resistor, the temperature measuring resistor is connected to the monitoring battery.

[0013] In one embodiment, the control battery includes a polycrystalline silicon battery.

[0014] In one embodiment, the monitoring battery includes a single crystal silicon battery.

[0015] In one embodiment, the battery structure further includes:

[0016] An outer fixed frame, the outer fixed frame includes a bottom plate, a cover plate, and a glass plate. The battery cell is installed on the bottom plate, and the glass plate is located above the battery cell for transmitting the light emitted by the solar simulator.

[0017] In one embodiment, the control battery is connected to the solar simulator through a first plug, and the monitoring battery is connected to the acquisition device through a first plug.

[0018] In one embodiment, the amplification module is connected to the acquisition device through a second plug.

[0019] In one embodiment, the temperature measuring resistor is connected to the acquisition device through a first plug.

[0020] In a second aspect, the present application also provides a battery, and the standard battery includes the battery structure of any one of the above.

[0021] The above battery structure has at least the following beneficial effects:

[0022] In the embodiment provided by the present disclosure, the battery cell includes a control battery connected to the solar simulator. The control battery is connected to the solar simulator, and the output first electrical signal is used to adjust the light source irradiance of the solar simulator. The monitoring battery is connected to the acquisition device, and the output second electrical signal is used to monitor the light source irradiance of the solar simulator in real time. By separating the control and monitoring functions and using different battery cells to complete their respective tasks, the problem of signal interference can be effectively avoided, and the measurement accuracy and stability can be improved.

[0023] It should be understood that the above general description and the following detailed description are only exemplary and explanatory, and cannot limit the present disclosure. BRIEF DESCRIPTION OF THE DRAWINGS

[0024] In order to more clearly illustrate the technical solutions in the embodiments of the present disclosure or the prior art, the following will briefly introduce the drawings required for use in the description of the embodiments or the prior art. Obviously, the following drawings are only some embodiments of the present disclosure. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0025] Figure 1 It is a schematic diagram of the battery structure in one embodiment;

[0026] Figure 2 It is a schematic diagram of the structure of the battery cell in one embodiment;

[0027] Figure 3 It is a schematic diagram of the battery structure in one embodiment;

[0028] Figure 4 Schematic diagram of the battery structure in an embodiment;

[0029] Figure 5 Schematic diagram of the battery structure in an embodiment. Detailed implementation manners

[0030] In order to enable those of ordinary skill in the art to better understand the technical solutions of the present disclosure, the technical solutions in the embodiments of the present disclosure will be clearly and completely described below with reference to the accompanying drawings.

[0031] It should be noted that the terms "first", "second", etc. in the specification and claims of the present disclosure and the above-mentioned drawings are used to distinguish similar objects, and do not necessarily have to be used to describe a specific order or sequence. It should be understood that such used data can be interchanged under appropriate circumstances so that the embodiments of the present disclosure described herein can be implemented in an order other than those illustrated or described herein. The implementation manners described in the following exemplary embodiments do not represent all implementation manners consistent with the present disclosure. On the contrary, they are merely examples of devices and methods consistent with some aspects of the present disclosure as detailed in the appended claims. The term "comprising", "including" or any other variant thereof is intended to cover non-exclusive inclusion, such that a process, method, product or device comprising a series of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such process, method, product or device. Without further limitation, there is no exclusion of additional identical or equivalent elements in the process, method, product or device comprising the said elements. For example, if the terms first, second, etc. are used to denote names, they do not denote any specific order.

[0032] In the present disclosure, unless otherwise clearly defined and limited, the terms "installed", "connected", "connected", "fixed", etc. should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or integrated; it can be a mechanical connection or an electrical connection; it can be directly connected or indirectly connected through an intermediate medium, and it can be the communication inside two elements or the interaction relationship between two elements, unless otherwise clearly limited. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0033] The terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance or implicitly indicating the quantity of the indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include at least one of such features. In the description of the present disclosure, the meaning of "a plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0034] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this disclosure belongs. The terms used herein in the specification of this disclosure are for the purpose of describing specific embodiments only and are not intended to limit this disclosure. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.

[0035] As described in the background art, since the solar simulator needs to adjust the light source irradiance through the standard cell, the output of the standard cell also needs to be connected to the light source control terminal, and thus interference is likely to occur between these two signals.

[0036] For this reason, this disclosure proposes a battery structure. Referring to Figure 1 , the bottom layer is a bottom plate 102 for connecting components, the battery cell 104 is installed on the bottom plate 102, the glass plate 106 is installed above the battery cell 104 to ensure that light can penetrate smoothly, and the cover plate 108 is installed on the top layer to enclose the entire module and protect the internal components from the external environment.

[0037] Figure 2 It is a schematic diagram of the structure of the battery cell in an embodiment.

[0038] The battery cell in the embodiment of this disclosure includes a control battery 202 and a monitoring battery 204.

[0039] The battery can include two parts, a control battery and a monitoring battery. The control battery and the monitoring battery are independently arranged on the bottom plate, not connected to each other, and are simultaneously irradiated by the light source emitted by the solar simulator.

[0040] Figure 3 It is a schematic diagram of the battery structure in an embodiment.

[0041] The control battery 202 in the embodiment of this disclosure is connected to the solar simulator 302.

[0042] The control battery is used to output a first electrical signal to the solar simulator, and the first electrical signal is used to adjust the light source irradiance of the solar simulator. A solar simulator is a device used to simulate the solar spectrum and light intensity, and can be used to test and evaluate solar cells, photovoltaic modules, and other photosensitive materials. The control battery can be a key component for adjusting the light source irradiance of the solar simulator.

[0043] Control the connection between the battery and the solar simulator. When the light emitted by the solar simulator shines on the control battery, the control battery generates a first electrical signal according to the received light intensity. The first electrical signal is transmitted to the control system of the solar simulator to adjust the irradiance of the light source emitted by the solar simulator. That is, when the light intensity received by the control battery changes, a corresponding electrical signal is output, and the solar simulator automatically adjusts the irradiance of the light source according to these signals to ensure that the light intensity received by the photovoltaic module under test remains constant.

[0044] In the embodiment of the present disclosure, the monitoring battery 204 is connected to the acquisition device 304.

[0045] The monitoring battery is used to output a second electrical signal to the acquisition device, and the second electrical signal is used to monitor the irradiance of the light source of the solar simulator in real time. The acquisition device can be used to acquire and process the electrical signals from the monitoring battery, and without being connected to the solar simulator, it can monitor the irradiance of the light source of the solar simulator in real time, and output the processed data to the user or the control system for further analysis or adjustment of the settings of the solar simulator. The acquisition device in this embodiment can include a photoresistor, a photodiode, a light intensity acquisition board, etc. The monitoring battery can be a key component for monitoring the irradiance of the light source of the solar simulator in real time.

[0046] When the light emitted by the solar simulator shines on the monitoring battery, the monitoring battery generates a second electrical signal according to the received light intensity. The monitoring battery is connected to the acquisition device, and the second electrical signal is transmitted to the acquisition device for monitoring the irradiance of the light source of the solar simulator in real time. That is, when the light intensity received by the monitoring battery changes, a corresponding electrical signal is output, and the acquisition device monitors the irradiance of the light source of the solar simulator according to the received second electrical signal to ensure that the light intensity received by the solar cell or photovoltaic module under test remains constant.

[0047] The control battery 202 and the monitoring battery 204 are independently installed on the bottom plate 102, and the control battery 202 and the monitoring battery 204 are arranged within the working range of the solar simulator 302.

[0048] The control battery and the monitoring battery are independently installed on the bottom plate but within the working range of the solar simulator. The light intensities received by the control battery and the monitoring battery are the same.

[0049] The above battery structure includes controlling the connection between the battery and the solar simulator. The first electrical signal output from controlling the connection between the battery and the solar simulator is used to adjust the light source irradiance of the solar simulator. The monitoring battery is connected to the acquisition device, and the second electrical signal output is used to monitor the light source irradiance of the solar simulator in real time. By separating the control and monitoring functions and using different battery cells to complete their respective tasks, the problem of signal interference can be effectively avoided, and the measurement accuracy and stability can be improved.

[0050] In some embodiments of the present disclosure, Figure 4 As a schematic diagram of the battery structure in an embodiment, the battery structure further includes:

[0051] An amplification module 402, the input end of the amplification module 402 is connected to the monitoring battery 204, and the output end of the amplification module 402 is connected to the acquisition device 304.

[0052] The amplification module can use LT1167 as the amplifier, which has a magnification of 50 times, and is used to amplify the weak electrical signal output by the monitoring battery to a more easily processed level to improve the signal quality. The input end of the amplification module is connected to the monitoring battery to receive the second electrical signal from the monitoring battery. The output end of the amplification module is connected to the acquisition device to transmit the amplified signal to the acquisition device for further processing.

[0053] In some embodiments of the present disclosure, Figure 5 As a schematic diagram of the battery structure in an embodiment, the battery structure further includes:

[0054] A temperature-measuring resistor 502, the temperature-measuring resistor 502 is connected to the monitoring battery 204.

[0055] The temperature-measuring resistor (PT100) is an element used to monitor the temperature of the monitoring battery and collect the temperature information of the monitoring battery. Its resistance value changes with the temperature. The temperature-measuring resistor can be pasted on the back of the monitoring battery to monitor the temperature of the monitoring battery. When the light emitted by the solar simulator irradiates the monitoring battery, the monitoring battery generates an electrical signal. At the same time, the temperature-measuring resistor monitors the temperature of the monitoring battery and generates a temperature signal. The temperature signal can be received by the acquisition device for temperature compensation. The light source irradiance of the solar simulator can be adjusted according to the temperature signal. The change of temperature will affect the performance of the solar cell. By monitoring the temperature and adjusting the light source irradiance accordingly, the accuracy of the test results can be ensured.

[0056] In some embodiments of the present disclosure, the control battery includes a polycrystalline silicon battery.

[0057] The control battery can use monocrystalline silicon cells or polycrystalline silicon cells. In this embodiment, the control battery can be a polycrystalline silicon cell, which has a high response speed and can be used to adjust the light source irradiance of the solar simulator and can quickly respond to changes in light intensity. By adjusting the light source irradiance through the first electrical signal output by the control battery, the test accuracy and stability can be improved, and it is ensured that the light source irradiance is maintained at the required level.

[0058] In some embodiments of the present disclosure, the monitoring battery includes monocrystalline silicon cells.

[0059] The monitoring battery can use monocrystalline silicon cells or polycrystalline silicon cells. In this embodiment, monocrystalline silicon cells can be used as the monitoring battery. Monocrystalline silicon cells have a high photoelectric conversion efficiency and good temperature stability. The characteristics of monocrystalline silicon cells are high photoelectric conversion efficiency, and the conversion rate is more synchronized with the battery under test, and they can be used to monitor the light source irradiance in real time. When the light emitted by the solar simulator irradiates the monitoring battery (monocrystalline silicon cell), the monitoring battery will generate an electrical signal. The acquisition device monitors the light source irradiance of the solar simulator according to the received second electrical signal to ensure that the light intensity received by the battery under test or the photovoltaic module remains constant.

[0060] The length of the control battery and the monitoring battery can be set to 100 mm - 300 mm, and the width can be set to 100 mm - 300 mm. In some embodiments of the present disclosure, using battery wafers of the same size can ensure that the control battery and the monitoring battery receive the same light area, thereby reducing errors caused by different light areas. By using control batteries and monitoring batteries of the same size, the test accuracy and reliability can be ensured, and at the same time, the manufacturing and maintenance processes are simplified.

[0061] In some embodiments of the present disclosure, the battery structure further includes:

[0062] The glass plate is located above the battery wafer and is used to transmit the light emitted by the solar simulator.

[0063] The peripheral fixed frame is a structure for protecting and fixing the battery wafer, including a bottom plate, a cover plate, and a glass plate. The control battery and the monitoring battery are installed on the bottom plate, and the glass plate is installed above the control battery and the monitoring battery to ensure that the light can penetrate smoothly, while protecting the battery wafer from external factors. The cover plate is installed on the top layer to enclose the entire module and protect the internal components from the external environment.

[0064] The glass plate is located above the battery cell. Its main function is to transmit the light emitted by the solar simulator while providing a protective effect. When the light emitted by the solar simulator irradiates the glass plate, the light can smoothly pass through the glass plate and irradiate the control battery and the monitoring battery located below, generating corresponding electrical signals. The first electrical signal output by the control battery is used to adjust the light source irradiance of the solar simulator, and the second electrical signal output by the monitoring battery is used to monitor the light source irradiance of the solar simulator in real time.

[0065] In some embodiments of the present disclosure, the control battery is connected to the solar simulator through a first plug, and the monitoring battery is connected to the acquisition device through a first plug.

[0066] The first plug can be selected as an aviation plug. Aviation plugs are usually designed with a locking mechanism to ensure stable connection, not easy to loosen, and support various types of signal transmission. In this embodiment, a 7PIN aviation plug can be selected as the first plug. The 7PIN aviation plug can transmit multiple signals or power supplies simultaneously, ensuring the quality of signal transmission, reducing signal attenuation and interference, and the 7PIN aviation plug can transmit different signals or power supplies according to needs, providing flexible configuration options. The control battery outputs the first electrical signal to the solar simulator through the 7PIN aviation plug to adjust the irradiance of the light source. The monitoring battery outputs the second electrical signal to the acquisition device through the 7PIN aviation plug to monitor the light source irradiance of the solar simulator in real time.

[0067] In some embodiments of the present disclosure, the amplification module is connected to the acquisition device through a second plug.

[0068] In this embodiment, the second plug can be a 4PIN aviation plug. The acquisition device is connected to the amplification module through the 4PIN aviation plug for providing input and output of power and signals. By using the 4PIN aviation plug, a stable connection between the amplification module and the acquisition device can be ensured.

[0069] In some embodiments of the present disclosure, the temperature measuring resistor is connected to the acquisition device through a first plug.

[0070] The acquisition device can be a microcontroller, a data recorder, etc., which can be used for the voltage or current generated by the temperature measuring resistor and convert it into a temperature value, facilitating the staff to intuitively observe the real-time working temperature of the current monitoring battery. The temperature measuring resistor can be connected to the acquisition device through a first plug.

[0071] The present application also provides a standard battery, and the standard battery includes the battery structure of any one of the above.

[0072] It should be understood that although the steps in the flowcharts involved in the above-described embodiments are shown sequentially in the direction of the arrows, these steps are not necessarily executed sequentially in the order indicated by the arrows. Unless there is a clear indication in this document, there is no strict order restriction for the execution of these steps, and these steps can be executed in other orders. Moreover, at least some of the steps in the flowcharts involved in the above-described embodiments may include multiple steps or multiple stages. These steps or stages are not necessarily executed at the same time, but can be executed at different times. The execution order of these steps or stages is not necessarily sequential, but can be executed alternately or in turn with at least some of the steps or stages in other steps or other steps.

[0073] The technical features of the above-described embodiments can be combined arbitrarily. For the sake of brevity of description, not all possible combinations of the technical features in the above-described embodiments are described. However, as long as there is no contradiction in the combination of these technical features, it should be considered as the scope described in this specification.

[0074] The above-described embodiments merely represent several implementation manners of the present disclosure. The description is relatively specific and detailed, but it should not be construed as a limitation on the scope of the patent. It should be noted that for those of ordinary skill in the art, without departing from the concept of the present disclosure, several modifications and improvements can still be made, and these all belong to the protection scope of the present disclosure. Therefore, the protection scope of the present disclosure should be subject to the appended claims.

Claims

1. A battery structure, characterized in that, The battery structure includes: Solar cells, which include control cells and monitoring cells; The control cells are connected to a solar simulator; The monitoring cells are connected to a collection device; The control cells and the monitoring cells are independently installed on a bottom plate, and the control cells and the monitoring cells are arranged within the working range of the solar simulator.

2. The battery structure according to claim 1, wherein The battery structure further includes: An amplification module, whose input end is connected to the monitoring cells, and whose output end is connected to the collection device.

3. The battery structure according to claim 1, wherein, The battery structure further includes: A temperature measuring resistor, which is connected to the monitoring cells.

4. The battery structure according to claim 1, wherein, The control cells include polycrystalline silicon cells.

5. The battery structure according to claim 1, wherein The monitoring cells include single-crystalline silicon cells.

6. The battery structure according to claim 1, wherein, The battery structure further includes: An outer fixing frame, which includes a bottom plate, a cover plate, and a glass plate. The solar cells are installed on the bottom plate, and the glass plate is located above the solar cells and is used to transmit the light emitted by the solar simulator.

7. The battery structure according to claim 1, characterized in that, The control cells are connected to the solar simulator through a first plug, and the monitoring cells are connected to the collection device through a first plug.

8. The battery structure according to claim 2, wherein The amplification module is connected to the collection device through a second plug.

9. The battery structure according to claim 3, wherein, The temperature measuring resistor is connected to the collection device through a first plug.

10. A battery, characterized in that, Including the battery structure according to any one of claims 1-9.

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