Photovoltaic detection structure

Abstract

The application discloses a photovoltaic detection structure arranged on a cable, which comprises a magnetic component and a detection component. The combination of the magnetic component and the detection component can detect current-related data in the cable as a Hall sensor. Furthermore, the magnetic component can be electromagnetically inducted by the current in the cable to charge as the power supply for the automatic operation of the detection component. Thus, the photovoltaic detection structure can provide instant monitoring and feedback detection results and self-powered detection operation.

Description

Technical Field

[0001] This application relates to the technical field of the photovoltaic industry, and in particular to a photovoltaic testing structure for photovoltaic cables. Background Technology

[0002] In the existing photovoltaic industry, photovoltaic power generation is a technology that directly converts light energy into electrical energy using the photovoltaic effect at the semiconductor interface. The key component of this technology is the solar cell. Solar cells are connected in series and then encapsulated for protection to form large-area solar cell modules. A solar panel composed of one or more solar cell modules is called a photovoltaic module. These, along with components such as a power controller, form a photovoltaic power generation device. However, if a solar cell module in a photovoltaic power generation device fails, due to the large area of ​​the module, a large-scale search for the fault location is required before targeted repairs can be carried out. Therefore, the detection and repair process is time-consuming, which is detrimental to the development of the industry. Summary of the Invention

[0003] This application provides a photovoltaic detection structure, which is assembled on the photovoltaic cables connected in series with individual solar cell modules. The photovoltaic detection structure can monitor the photovoltaic cables of individual solar cell modules in real time. At the same time, the photovoltaic detection structure can operate autonomously by powering its own power supply and can report detection information and detection location. Therefore, it can effectively solve the efficiency problem of detection and maintenance.

[0004] To solve the above-mentioned technical problems, this application is implemented as follows:

[0005] A photovoltaic detection structure is provided, which is mounted on a cable. The photovoltaic detection structure includes a magnetic component and a detection component. The magnetic component includes a magnetic ring and a coil, with the coil wound around the magnetic ring. The magnetic ring is sleeved on the cable, and the magnetic ring has an opening. The detection component includes a Hall element, a detection module, a control module, a signal module, and a power module. The Hall element is located in the opening. The detection module is electrically connected to the Hall element. The control module is electrically connected to the detection module, the signal module, and the power module. The power module is electrically connected to the coil.

[0006] In one embodiment, the power module includes a management unit and a battery unit, with the management unit electrically connected to both the coil and the battery unit.

[0007] A photovoltaic detection structure is provided, which is mounted on a cable. The photovoltaic detection structure includes a magnetic component and a detection component. The magnetic component includes a magnetic ring and a coil, with the coil wound around the magnetic ring. The magnetic ring is sleeved on the cable, and the magnetic ring has an opening. The detection component includes a Hall element, a detection module, a control module, a signal module, and a power module. The Hall element is located in the opening. The detection module is electrically connected to the Hall element, and the control module is electrically connected to the detection module, the signal module, the power module, and the coil.

[0008] In one embodiment, the power module includes a management unit and a battery unit, with the management unit electrically connected to both the battery unit and the control module.

[0009] In one embodiment, a housing is further included, which is fitted over the cable, and the magnetic components and the detection components are disposed within the housing.

[0010] A photovoltaic detection structure is provided, which is disposed on a cable. The photovoltaic detection structure includes: a first magnetic component, a detection component, and a second magnetic component. The first magnetic component includes a first magnetic ring and a first coil, with the first coil wound around the first magnetic ring. The first magnetic ring is sleeved on the cable, and the first magnetic ring has an opening. The detection component includes a Hall element, a detection module, a control module, a signal module, and a power supply module. The Hall element is located in the opening. The detection module is electrically connected to the Hall element. The control module is electrically connected to the detection module, the signal module, the power supply module, and the first coil. The second magnetic component includes a second magnetic ring and a second coil, with the second coil wound around the second magnetic ring. The second magnetic ring is sleeved on the cable, and the power supply module is electrically connected to the second coil.

[0011] In one embodiment, it further includes a third magnetic component and an auxiliary detection component. The third magnetic component includes a third magnetic ring and a third coil, with the third coil wound around the third magnetic ring. The third magnetic ring is sleeved on the cable and has an opening. The auxiliary detection component includes an auxiliary Hall element and an auxiliary detection module. The auxiliary Hall element is located at the opening of the third magnetic ring, and the auxiliary detection module is electrically connected to the auxiliary Hall element. The control module is electrically connected to the auxiliary detection module.

[0012] In one embodiment, the power module includes a management unit and a battery unit, with the management unit electrically connected to the second coil and the battery unit, respectively.

[0013] In one embodiment, a housing is further included, which is fitted over the cable, and the first magnetic component, the detection component, and the second magnetic component are disposed within the housing.

[0014] In one embodiment, the detection module includes a filtering unit, an amplification circuit unit, and a signal conversion unit. The filtering unit is electrically connected to a Hall element, the amplification circuit unit is electrically connected to the filtering unit, the signal conversion unit is electrically connected to the amplification circuit unit, and the control module is electrically connected to the signal conversion unit.

[0015] In one embodiment, the signal module is used for wireless signal transmission, wherein the wireless signal communication method adopts at least one of the following: Wi-Fi communication, Bluetooth communication, ANT communication, RF4CE communication, Zigbee communication, NFC communication, UWB communication and infrared communication.

[0016] This application provides a photovoltaic detection structure designed by combining a magnetic component and a detection component. The combination of the magnetic component and the detection component functions as a Hall sensor to detect current-related data within the cable. Furthermore, the magnetic component can be charged through the magnetic effect and electromagnetic induction of the current within the cable, providing power for the automatic operation of the detection component. This achieves the photovoltaic detection structure's ability to provide real-time monitoring and reporting of detection results, as well as autonomous power supply for detection operation. Attached Figure Description

[0017] The accompanying drawings, which are included to provide a further understanding of this application and form part of this application, illustrate exemplary embodiments of this application and are used to explain this application, but do not constitute an undue limitation of this application. In the drawings:

[0018] Figure 1 This is a perspective view of the photovoltaic detection structure according to the first embodiment of this application;

[0019] Figure 2 This is a schematic diagram of the circuit module of the first embodiment of this application;

[0020] Figure 3 This is a schematic diagram of another circuit module of the first embodiment of this application;

[0021] Figure 4 This is a schematic diagram of the circuit module according to the second embodiment of this application;

[0022] Figure 5 This is a schematic diagram of another circuit module according to the second embodiment of this application;

[0023] Figure 6 This is a perspective view of the photovoltaic detection structure according to the third embodiment of this application;

[0024] Figure 7 This is a schematic diagram of the circuit module of the third embodiment of this application;

[0025] Figure 8This is a schematic diagram of another circuit module according to the third embodiment of this application;

[0026] Figure 9 This is a perspective view of the photovoltaic detection structure according to the fourth embodiment of this application; and

[0027] Figure 10 This is a schematic diagram of the circuit module of the fourth embodiment of this application.

[0028] The following explanation is based on the accompanying diagram:

[0029] 1: Photovoltaic detection structure; 11: Magnetic component; 111: Magnetic ring; 1110: Opening; 112: Coil; 13: Detection component; 131: Hall element; 132: Detection module; 1321: Filtering unit; 1322: Amplification circuit unit; 1323: Signal conversion unit; 133: Control module; 134: Signal module; 135: Power module; 1351: Management unit; 1352: Battery unit; 15: Housing; 151: Cover; 152: Shell Body; 1521: Receiving groove; 11A: First magnetic component; 111A: First magnetic ring; 1110A: Opening; 112A: First coil; 11B: Second magnetic component; 111B: Second magnetic ring; 112B: Second coil; 11C: Third magnetic component; 111C: Third magnetic ring; 1110C: Opening; 112C: Third coil; 13C: Auxiliary detection component; 131C: Auxiliary Hall element; 132C: Auxiliary detection module; 2: Cable. Detailed Implementation

[0030] The following drawings disclose several embodiments of this application. For clarity, many implementation details will be described in the following description. However, it should be understood that these implementation details are not intended to limit the application. That is, in some embodiments of this application, these implementation details are not essential. Furthermore, for the sake of simplicity, some conventional structures and components will be shown in a simple schematic manner in the drawings. In the following embodiments, the same or similar components will be represented by the same reference numerals.

[0031] Please see Figures 1 to 3 , Figure 1 This is a perspective view of the photovoltaic detection structure according to the first embodiment of this application. Figure 2 It is a schematic diagram of the circuit module and Figure 3This is a schematic diagram of another circuit module. As shown in the figure, this application provides a photovoltaic detection structure 1, which is disposed on a cable 2. The photovoltaic detection structure 1 includes a magnetic component 11 and a detection component 13. The magnetic component 11 includes a magnetic ring 111 and a coil 112. The coil 112 is wound around the magnetic ring 111. The magnetic ring 111 is sleeved on the cable 2. The magnetic ring 111 has an opening 1110. The two end faces of the magnetic ring 111 are located on both sides of the opening 1110, and the two end faces of the magnetic ring 111 are parallel to each other. The detection component 13 includes a Hall element 131, a detection module 132, a control module 133, a signal module 134, and a power module 135. The Hall element 131 is located in the opening 1110. The detection module 132 is electrically connected to the Hall element 131. The control module 133 is electrically connected to the detection module 132, the signal module 134, and the power module 135 respectively. The power module 135 is electrically connected to the coil 112.

[0032] In this embodiment, the photovoltaic detection structure 1 is used to detect the low-voltage DC transmission cable 2 in the solar photovoltaic power generation system. The cable 2 includes connecting cables between solar cell modules, connecting cables between batteries, or connecting cables for AC loads. Furthermore, the magnetic ring 111 of the magnetic component 11 is a C-ring, and the coil 112 is spirally wound along the magnetic ring 111. The Hall element 131 is located at the opening 1110 of the magnetic ring 111. The detection component 13 is disposed on both sides of the magnetic component 11 via a circuit board. The magnetic component 11 and the detection component 13 together constitute a Hall sensor. A Hall sensor is a magnetic field sensor based on the Hall effect. The essence of the Hall effect is that when charge carriers in a solid material move in an external magnetic field, their trajectories are deflected due to the Lorentz force, resulting in charge accumulation on both sides of the material, forming an electric field perpendicular to the current direction. This balances the Lorentz force on the charge carriers with the electric field repulsion, thereby establishing a stable potential difference on both sides, i.e., the Hall voltage.

[0033] As described above, Hall sensors include both open-loop and closed-loop types. In this embodiment, the magnetic component 11 and the detection component 13 partially constitute an open-loop Hall sensor. When the primary current flows through the photovoltaic cable 2, a magnetic field is generated around the cable 2. The magnitude of this magnetic field is proportional to the primary current flowing through the cable 2. The magnetic field generated by the cable 2 is concentrated within the magnetic ring 111 and measured through the Hall element 131 in the opening 1110 of the magnetic ring 111. Furthermore, the detection signal measured by the Hall element 131 is acquired by the detection module 132. The detection module 132 includes a filtering unit 1321, an amplification circuit unit 1322, and a signal conversion unit 1323. The filtering unit 1321 is electrically connected to the Hall element 131, the amplification circuit unit 1322 is electrically connected to the filtering unit 1321, the signal conversion unit 1323 is electrically connected to the amplification circuit unit 1322, and the control module 133 is electrically connected to the signal conversion unit 1323. Since the potential difference (i.e., the data of the detection signal) generated by the Hall element 131 is very small, the detection signal measured by the Hall element 131 needs to be converted from AC to DC by the filtering unit 1321, and after the voltage waveform is stabilized, the detection signal is amplified by the amplification circuit unit 1322. Finally, the detection signal is converted from an analog signal to a digital signal by the signal conversion unit 1323 and input to the control module 133.

[0034] Furthermore, the control module 133 compares the detected signal with the data of the detected signal under normal conditions. If there is a difference between the detected signal and the detected signal under normal conditions, the control module 133 activates the signal module 134 to send an alarm signal. After reporting the abnormal detected signal and the location where the detected signal was sent to the central control system, the user can dispatch personnel to directly inspect the fault location based on the information received by the central control system. If there is no difference between the detected signal and the detected signal under normal conditions, no alarm signal is sent. The signal module 134 is used for wireless signal transmission, and the wireless communication method adopts at least one of the following: Wi-Fi communication, Bluetooth communication, ANT communication, RF4CE communication, Zigbee communication, NFC communication, UWB communication, and infrared communication.

[0035] Additionally, the power module 135 includes a management unit 1351 and a battery unit 1352, with the management unit 1351 electrically connected to both the coil 112 and the battery unit 1352. Due to the magnetic effect of current, a magnetic field is generated around the current-carrying cable 2. The current-carrying cable 2 passes through the magnetic component 11, generating a current magnetic effect. In other words, this changes the magnetic field around the coil 112 of the magnetic component 11, inducing a current within the coil 112. This induced current is rectified and concentrated by the management unit 1351 of the power module 135, and then input into the battery unit 1352 for charging. The management unit 1351 can also supply power from the battery unit 1352 to the control module 133 to maintain the detection operation.

[0036] The photovoltaic detection structure 1 of this embodiment further includes a housing 15, which has a cover 151 and a shell 152. The shell 152 is fitted onto the cable 2 and has a receiving groove 1521 surrounding the cable 2. The magnetic component 11 and the detection component 13 are disposed within the receiving groove 1521 of the shell 152, and the cover 151 is then placed over the opening of the receiving groove 1521. Thus, the shell 152 provides waterproof and dustproof protection for the magnetic component 11 and the detection component 13.

[0037] In this embodiment, a combination design of magnetic component 11 and detection component 13 is used. The combination of magnetic component 11 and detection component 13 can serve as a Hall sensor to detect current-related data within cable 2. Furthermore, magnetic component 11 can be charged through current magnetic effect and electromagnetic induction by the current within cable 2, thus providing electrical energy to power detection component 13. In this way, the photovoltaic detection structure 1 can provide real-time monitoring and reporting of detection results, as well as autonomous power supply for detection operation.

[0038] Please see Figures 4 to 5 , Figure 4 This is a schematic diagram of the circuit module of the second embodiment of this application and Figure 5 This is a schematic diagram of another circuit module. As shown in the figure, the difference between this embodiment and the first embodiment lies in the electrical connection method of the detection component 13. The detection component 13 includes a Hall element 131, a detection module 132, a control module 133, a signal module 134, and a power supply module 135. The Hall element 131 is located in the opening 1110. The detection module 132 is electrically connected to the Hall element 131. The control module 133 is electrically connected to the detection module 132, the signal module 134, the power supply module 135, and the coil 112.

[0039] As described above, the magnetic component 11 and the detection component 13 together form a closed-loop Hall sensor. When the magnetic flux generated by the primary current is concentrated through the magnetic component 11, the Hall element 131, located in the opening 1110 of the magnetic ring 111, detects the magnetic flux. Furthermore, a reverse compensation current is output through a multi-turn coil 112 wound around the magnetic ring 111 to cancel out the magnetic flux generated by the primary current, ensuring that the magnetic flux in the magnetic component 11 remains zero. Through this special circuit processing, the output of the Hall element 131 of the closed-loop Hall sensor can output a current that accurately reflects the change in the primary current. Thus, the coil 112 in this embodiment, compared to the coil 112 in the first embodiment, further includes the function of providing a reverse compensation current output.

[0040] In this embodiment, the control module 133 can control the closed-loop Hall sensor composed of the magnetic component 11 and the detection module 132 of the detection component 13 to detect the cable 2; or, it can charge the current in the cable 2 through the combination of the magnetic component 11 and the power module 135 using current magnetic effect and electromagnetic induction. The above detection process or charging process is arranged to operate alternately by the control module 133.

[0041] Please see Figures 6 to 8 , Figure 6 This is a perspective view of the photovoltaic detection structure according to the third embodiment of this application. Figure 7 It is a schematic diagram of the circuit module and Figure 8 This is a schematic diagram of another circuit module. As shown in the figure, the difference between this embodiment and the second embodiment is that the power module 135 is charged through another magnetic component. The photovoltaic detection structure 1 of this embodiment includes a first magnetic component 11A, a detection component 13, and a second magnetic component 11B. The first magnetic component 11A includes a first magnetic ring 111A and a first coil 112A. The first coil 112A is wound around the first magnetic ring 111A. The first magnetic ring 111A is sleeved on the cable 2. The first magnetic ring 111A has an opening 1110A. The detection component 13 includes a Hall element 131, a detection module 132, a control module 133, a signal module 134, and a power module 135. The Hall element 131 is located at the opening 1110A. The detection module 132 is electrically connected to the Hall element 131. The control module 133 is electrically connected to the detection module 132, the signal module 134, the power module 135, and the first coil 112A, respectively. The second magnetic component 11B includes a second magnetic ring 111B and a second coil 112B. The second coil 112B is wound around the second magnetic ring 111B. The second magnetic ring 111B is sleeved on the cable 2. The power module 135 is electrically connected to the second coil 112B.

[0042] As described above, the control module 133 controls the closed-loop Hall sensor, composed of the first magnetic component 11A and the detection module 132 of the detection component 13, to detect the cable 2. Simultaneously, the control module 133 controls the combination of the second magnetic component 11B and the power module 135 to charge the current within the cable 2 through current magnetic effect and electromagnetic induction. The aforementioned detection and charging processes operate independently without interference.

[0043] Please see Figure 9 and Figure 10 , Figure 9 This is a perspective view of the photovoltaic detection structure according to the fourth embodiment of this application and... Figure 10 This is a schematic diagram of the circuit module. As shown in the figure, the difference between this embodiment and the third embodiment is that it further includes a third magnetic component 11C and an auxiliary detection component 13C. In this embodiment, the third magnetic component 11C includes a third magnetic ring 111C and a third coil 112C. The third coil 112C is wound around the third magnetic ring 111C. The third magnetic ring 111C is sleeved on the cable 2. The third magnetic ring 111C has an opening 1110C. The auxiliary detection component 13C includes an auxiliary Hall element 131C and an auxiliary detection module 132C. The auxiliary Hall element 131C is located at the opening 1110C of the third magnetic ring 111C. The auxiliary detection module 132C is electrically connected to the auxiliary Hall element 131C. The control module 133 is electrically connected to the auxiliary detection module 132C. The auxiliary detection module 132C also includes a filtering unit, an amplification circuit unit, and a signal conversion unit, which will not be described in detail here.

[0044] In this embodiment, the combination of the first magnetic component 11A and the detection component 13 can generate a first detection signal by detecting the current in the Hall sensor cable 2. The combination of the third magnetic component 11C and the auxiliary detection component 13C can also generate a second detection signal by detecting the current in the Hall sensor cable 2. The control module 133 compares the data of the first and second detection signals. If there is a difference between the first and second detection signals, the control module 133 activates the signal module 134 to send an alarm signal. If there is no difference between the first and second detection signals, no alarm signal is sent.

[0045] In summary, this application provides a photovoltaic detection structure that combines a magnetic component and a detection component. The combination of the magnetic component and the detection component functions as a Hall sensor to detect current-related data within the cable. Furthermore, the magnetic component can be charged through the current within the cable via magnetic field effects and electromagnetic induction, providing the electrical energy to power the detection component for automatic operation. This achieves the photovoltaic detection structure's ability to provide real-time monitoring and reporting of detection results, as well as autonomous power supply for detection operation.

[0046] It should also be noted that the terms "comprising," "including," or any other variations thereof are intended to cover non-exclusive inclusion, such that a process, method, article, or apparatus that comprises a list of elements includes not only those elements but also other elements not expressly listed, or elements inherent to such a process, method, article, or apparatus. Without further limitation, an element defined by the phrase "comprising one..." does not exclude the presence of other identical elements in the process, method, article, or apparatus that includes said element.

[0047] The foregoing description illustrates and describes several preferred embodiments of this application. However, as previously stated, it should be understood that this application is not limited to the forms disclosed herein and should not be construed as excluding other embodiments. It can be used in various other combinations, modifications, and environments, and can be altered within the scope of the inventive concept described herein through the foregoing teachings or techniques or knowledge in related fields. Any modifications and variations made by those skilled in the art that do not depart from the spirit and scope of this application should be protected within the scope of the appended claims.

Claims

1. A photovoltaic detection structure, characterized in that, It is mounted on the cable, and the photovoltaic detection structure includes: A first magnetic component includes a first magnetic ring and a first coil, the first coil being wound around the first magnetic ring, the first magnetic ring being sleeved on the cable, and the first magnetic ring having an opening; The detection assembly includes a Hall element, a detection module, a control module, a signal module, and a power module. The Hall element is located at the opening. The detection module is electrically connected to the Hall element. The control module is electrically connected to the detection module, the signal module, the power module, and the first coil, respectively. The second magnetic component includes a second magnetic ring and a second coil, the second coil being wound around the second magnetic ring, the second magnetic ring being sleeved on the cable, and the power module being electrically connected to the second coil; The control module controls the combination of the first magnetic component and the detection module to detect the cable, and controls the combination of the second magnetic component and the power module to inductively charge the cable, so that the detection process and the charging process are arranged alternately by the control module.

2. The photovoltaic detection structure as described in claim 1, characterized in that, It further includes a third magnetic component and an auxiliary detection component. The third magnetic component includes a third magnetic ring and a third coil. The third coil is wound around the third magnetic ring. The third magnetic ring is sleeved on the cable. The third magnetic ring has an opening. The auxiliary detection component includes an auxiliary Hall element and an auxiliary detection module. The auxiliary Hall element is located at the opening of the third magnetic ring. The auxiliary detection module is electrically connected to the auxiliary Hall element. The control module is electrically connected to the auxiliary detection module.

3. The photovoltaic detection structure as described in claim 1, characterized in that, The power module includes a management unit and a battery unit, and the management unit is electrically connected to the second coil and the battery unit respectively.

4. The photovoltaic detection structure as described in claim 1, characterized in that, It also includes a housing, which is fitted over the cable, and the first magnetic component, the detection component, and the second magnetic component are disposed inside the housing.

5. The photovoltaic detection structure as described in claim 1, characterized in that, The detection module includes a filtering unit, an amplification circuit unit, and a signal conversion unit. The filtering unit is electrically connected to the Hall element, the amplification circuit unit is electrically connected to the filtering unit, the signal conversion unit is electrically connected to the amplification circuit unit, and the control module is electrically connected to the signal conversion unit.

6. The photovoltaic detection structure as described in claim 1, characterized in that, The signal module is used for wireless signal transmission, wherein the wireless signal communication method adopts at least one of the following: WI-FI communication, Bluetooth communication, ANT communication, RF4CE communication, Zigbee communication, NFC communication, UWB communication and infrared communication.

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