Integrated photovoltaic fuse preparation method and related device

Abstract

The application provides a preparation method of an integrated photovoltaic fuse and related devices, and the method comprises the following steps: preparing a fuse material, a mounting piece material, a shell material and an arc extinguishing medium of an integrated photovoltaic fuse; preparing a metal fuse according to a first product specification; respectively performing injection molding on the shell material according to a second product specification to obtain a first shell and a second shell; performing stamping operation on the mounting piece material according to the second product specification to obtain a first mounting piece and a second mounting piece; and assembling the arc extinguishing medium, the first shell, the second shell, the first mounting piece, the second mounting piece and the metal fuse to obtain the integrated photovoltaic fuse. In this way, the customized preparation method is matched for a specific integrated photovoltaic fuse, unnecessary processes are simplified, and the production efficiency and the yield are improved.

Description

Technical Field

[0001] This application belongs to the field of emergency protection device technology, specifically relating to an integrated photovoltaic fuse manufacturing method and related device. Background Technology

[0002] Currently, fuses used for overcurrent and short-circuit protection in photovoltaic (solar) DC systems are key components for ensuring the safe and stable operation of solar power generation systems. They are widely used in photovoltaic projects of various sizes, from residential rooftop power stations to large ground-mounted power stations. Their main function is to quickly disconnect the circuit in the event of an overcurrent or short-circuit fault, thereby protecting expensive photovoltaic modules, inverters, combiner boxes and other equipment. They are mainly optimized for the high-voltage DC environment unique to photovoltaic systems and have the characteristics of high breaking capacity, strong weather resistance and easy installation.

[0003] Existing technologies require first classifying component types and generating control flow tables, and then manufacturing them in parallel or serial order according to priority, which is cumbersome and lacks specificity. Summary of the Invention

[0004] This application provides a method and related apparatus for manufacturing an integrated photovoltaic fuse, aiming to match a customized manufacturing method for a specific integrated photovoltaic fuse, simplify the process, and improve production efficiency and yield.

[0005] In a first aspect, this application provides a method for manufacturing an integrated photovoltaic fuse, comprising: Prepare the raw materials for the fusible element, the raw materials for the mounting components, the raw materials for the casing, and the arc-extinguishing medium for the integrated photovoltaic fuse; The molten raw materials are prepared into a metal melt according to the first product specification; According to the second product specification, the shell raw materials are respectively injection molded to obtain the first shell and the second shell; According to the third product specification, the raw material of the mounting part is stamped to obtain the first mounting part and the second mounting part; The arc-extinguishing medium, the first housing, the second housing, the first mounting component, the second mounting component, and the molten metal are assembled to obtain an integrated photovoltaic fuse.

[0006] In conjunction with the first aspect, in one possible embodiment, the step of preparing the molten material into a metallic melt according to the first product specification includes: thinning a first region of the molten material by a milling process to form a fusion fracture portion, thereby obtaining a first melt; forming a plurality of narrow necks on the fusion fracture portion using a first punching die, thereby obtaining a second melt; forming a plurality of protrusions on the fusion fracture portion using a bending die, thereby obtaining a third melt; performing a stamping operation and a bending operation on the first end and the second end of the third melt, respectively, to form a first electrode portion and a second electrode portion, thereby obtaining a fourth melt; and performing an electroplating operation on the fourth melt to obtain the metallic melt.

[0007] In conjunction with the first aspect, in one possible embodiment, the step of preparing the molten raw material into a molten metal according to the first product specification includes: thinning a first region of the molten raw material by a milling process to obtain a first molten metal; forming a plurality of narrow necks on the first molten metal using a first punching die to obtain a second molten metal; forming a plurality of protrusions on the second molten metal using a bending die to obtain a third molten metal; dividing the third molten metal along its width direction to obtain a plurality of fused portions; preparing a first electrode portion and a second electrode portion based on the molten raw material; and welding the two ends of the plurality of fused portions to the first electrode portion and the second electrode portion respectively to obtain the molten metal.

[0008] In conjunction with the first aspect, in one possible embodiment, the step of injection molding the shell raw materials according to the second product specifications to obtain a first shell and a second shell includes: drying the shell raw materials to adjust the moisture content of the shell raw materials to ≤0.03% to obtain a spare shell raw material; injecting the spare shell raw material into a multi-cavity mold and molding it using segmented temperature control to obtain the first shell and the second shell respectively; wherein, the surface roughness of the mold cavity of the multi-cavity mold is Ra≤0.2μm.

[0009] In conjunction with the first aspect, in one possible embodiment, the step of stamping the mounting material according to the third product specification to obtain the first mounting part and the second mounting part includes: controlling a CNC machine tool to perform a cutting operation on the mounting material to obtain a plurality of first unfolded parts; punching the plurality of first unfolded parts with a second punching die to obtain a plurality of second unfolded parts; bending the plurality of second unfolded parts with a forming tool to obtain a first wiring component, a second wiring component, a first clamping component, and a second clamping component; assembling the first wiring component and the first clamping component to obtain the first mounting part; and assembling the second wiring component and the second clamping component to obtain the second mounting part.

[0010] In conjunction with the first aspect, in one possible embodiment, assembling the arc-extinguishing medium, the first housing, the second housing, the first mounting component, the second mounting component, and the molten metal to obtain an integrated photovoltaic fuse includes: respectively setting the first mounting component and the second mounting component in a first mounting groove and a second mounting groove of the first housing; setting the molten metal in the first arc-extinguishing groove of the first housing, and inserting the first electrode portion and the second electrode portion of the molten metal into the first wiring component and the second wiring component, respectively; installing a stop block on the stop mounting portion of the first housing; covering the first housing with the second housing and fixing it with a third fixing component to obtain a first fuse; and loading the arc-extinguishing medium into the first fuse to obtain the integrated photovoltaic fuse.

[0011] In conjunction with the first aspect, in one possible embodiment, assembling the arc-extinguishing medium, the first housing, the second housing, the first mounting member, the second mounting member, and the molten metal to obtain an integrated photovoltaic fuse includes: respectively setting the first mounting member and the second mounting member in a first mounting groove and a second mounting groove of the first housing; setting the molten metal in the first arc-extinguishing groove of the first housing, and inserting the first electrode portion and the second electrode portion of the molten metal into the first wiring member and the second wiring member, respectively; adding the arc-extinguishing medium into the first arc-extinguishing groove, and installing a stop block on the stop mounting portion of the first housing; covering the first housing with the second housing and fixing it with a third fixing member to obtain the integrated photovoltaic fuse.

[0012] In conjunction with the first aspect, in one possible embodiment, the segmented temperature control includes: setting the temperature of the front section of the barrel to 260-270°C, the temperature of the middle section to 250-260°C, the temperature of the rear section to 240-250°C, and the nozzle temperature to 270-280°C; during injection molding, setting the feed rate of the rapid filling stage to 70-90 mm / s, and reducing the feed rate of the holding pressure stage to 15-25 mm / s.

[0013] Secondly, this application provides an apparatus for manufacturing an integrated photovoltaic fuse, comprising: The material preparation unit is used to prepare the fusible material, mounting component material, shell material and arc extinguishing medium for integrated photovoltaic fuses; The preparation unit is used to prepare the melt raw material into a metal melt according to a first product specification; to perform injection molding on the shell raw material according to a second product specification to obtain a first shell and a second shell; and to perform stamping operation on the mounting part raw material according to a third product specification to obtain a first mounting part and a second mounting part. An assembly unit is used to assemble the arc-extinguishing medium, the first housing, the second housing, the first mounting component, the second mounting component, and the molten metal to obtain an integrated photovoltaic fuse.

[0014] Thirdly, this application provides an electronic device including a processor, a memory, a communication interface, and one or more programs, said one or more programs being stored in the memory and configured to be executed by the processor, said programs including instructions for performing the steps in the first or second aspect of this application.

[0015] Fourthly, this application provides a computer-readable storage medium storing a computer program for electronic data interchange, wherein the computer program causes a computer to perform some or all of the steps described in the first or second aspect of this application.

[0016] Fifthly, this application provides a computer program product, wherein the computer program product includes a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps described in the first or second aspect of this application. The computer program product may be a software installation package.

[0017] As can be seen, in this application, the following steps are first taken: preparing the fusible material, mounting component material, shell material, and arc-extinguishing medium for the integrated photovoltaic fuse; preparing the fusible material into a molten metal according to a first product specification; injection molding the shell material according to a second product specification to obtain a first shell and a second shell; stamping the mounting component material according to the second product specification to obtain a first mounting component and a second mounting component; and assembling the arc-extinguishing medium, the first shell, the second shell, the first mounting component, the second mounting component, and the molten metal to obtain the integrated photovoltaic fuse. This customized manufacturing method, tailored to a specific integrated photovoltaic fuse, simplifies unnecessary processes and improves production efficiency and yield. Attached Figure Description

[0018] To more clearly illustrate the technical solutions in the embodiments of this application or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0019] Figure 1 This is a schematic flowchart of the integrated photovoltaic fuse manufacturing method provided in the embodiments of this application; Figure 2This is a schematic diagram of the integrated photovoltaic fuse provided in the embodiments of this application; Figure 3 This is a schematic diagram of the mating structure of the first housing, the first mounting component, the second mounting component, and the molten metal provided in the embodiments of this application; Figure 4 This is a schematic diagram of the structure of the first housing provided in an embodiment of this application; Figure 5 This is a schematic diagram of the structure of the second housing provided in an embodiment of this application; Figure 6 This is a schematic diagram of the structure of the first type of molten metal provided in the embodiments of this application; Figure 7 This is a schematic diagram of the structure of the first mounting component provided in the embodiments of this application; Figure 8 This is a schematic diagram of the structure of the second mounting component provided in the embodiments of this application; Figure 9 This is a schematic diagram of the structure of the second type of molten metal provided in the embodiments of this application; Figure 10 This is a cross-sectional schematic diagram of the second type of molten metal provided in the embodiments of this application; Figure 11 This is a schematic block diagram of the structure of the integrated photovoltaic fuse manufacturing apparatus provided in the embodiments of this application; Figure 12 This is a schematic block diagram of the electronic device provided in the embodiments of this application. Detailed Implementation

[0020] To enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present application, and not all embodiments. Based on the embodiments in the present application, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the scope of protection of the present application.

[0021] The terms "first," "second," etc., in the specification, claims, and accompanying drawings of this application are used to distinguish different objects, not to describe a specific order. Furthermore, the terms "comprising" and "having," and any variations thereof, are intended to cover non-exclusive inclusion. For example, a process, method, system, product, or apparatus that includes a series of steps or units is not limited to the listed steps or units, but may optionally include steps or units not listed, or may optionally include other steps or units inherent to these processes, methods, systems, products, or apparatuses.

[0022] In this document, the term "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of this application. The appearance of this phrase in various places throughout the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0023] The following is a brief introduction to the relevant terminology used in this application.

[0024] Computer Numerical Control (CNC): CNC technology is an automated manufacturing process that relies on computer numerical control programs to automatically drive CNC machining equipment and perform precision machining such as cutting, milling, grinding, and drilling on metal or non-metal workpieces according to preset machining trajectories, dimensional parameters, and process requirements. It has high machining accuracy and good dimensional consistency and is suitable for the batch forming and processing of precision parts.

[0025] Currently, existing technologies require first classifying component types and generating control flow tables, and then manufacturing them in parallel or serial order according to priority, which is cumbersome and lacks specificity.

[0026] To address the aforementioned issues, this application provides a method and apparatus for manufacturing an integrated photovoltaic fuse. This method and apparatus can be applied to various scenarios involving the manufacture of integrated photovoltaic fuses. The process involves preparing the fusible material, mounting component material, housing material, and arc-extinguishing medium for the integrated photovoltaic fuse; preparing the fusible material into a molten metal according to a first product specification; injection molding the housing material according to a second product specification to obtain a first housing and a second housing; stamping the mounting component material according to the second product specification to obtain a first mounting component and a second mounting component; and assembling the arc-extinguishing medium, the first housing, the second housing, the first mounting component, the second mounting component, and the molten metal to obtain the integrated photovoltaic fuse. This approach allows for a customized manufacturing method tailored to specific integrated photovoltaic fuses, streamlining unnecessary processes and improving production efficiency and yield. This solution is applicable to various scenarios, including but not limited to the applications mentioned above.

[0027] The specific methods will be described in detail below.

[0028] Please see Figure 1 This application also provides a method for manufacturing an integrated photovoltaic fuse, comprising: Step S101: Prepare the fusible material, mounting material, shell material, and arc extinguishing medium for the integrated photovoltaic fuse.

[0029] In practice, raw materials for preparing the molten metal, raw materials for preparing the first and second shells, raw materials for preparing the mounting components, and arc-extinguishing media are centrally prepared according to the product specifications of the integrated photovoltaic fuse. Standardized processes are used to simultaneously complete the molten metal stamping, wire frame stamping, and shell injection molding, without classifying component types, generating control flow tables, or setting preparation priorities.

[0030] Step S102: Prepare the melt raw material into a metal melt according to the first product specification.

[0031] In one possible embodiment, a first region of the molten material is thinned by milling to form a fusion fracture portion, resulting in a first melt; a plurality of narrow necks 331 are formed on the fusion fracture portion using a first punching die, resulting in a second melt; a plurality of protrusions are formed on the fusion fracture portion using a bending die, resulting in a third melt; a first electrode portion and a second electrode portion are formed on the first and second ends of the third melt, respectively, resulting in a fourth melt; and the fourth melt is electroplated to obtain the metal melt.

[0032] Specifically, the unthinned portions connected to both ends of the fuse section 33 are the first electrode section 31 and the second electrode section 32. The fuse section 33 is provided with easily fusible narrow necks 331. When the current exceeds the fusing current, the narrow necks 331 are the first to fuse, thus protecting the photovoltaic modules, inverters, combiner boxes, and other equipment on the main circuit. Optionally, the fuse section 33 is also provided with a bending section 332, which is a protruding structure formed by the inward concavity of one side of the fuse section to the other, such as a semi-circle or an arc shape. This bending section 332 prevents stress from pulling at both ends during installation from damaging the narrow necks 331 and also prevents direct arc connection between the narrow necks 331, improving arc extinguishing capability. Furthermore, the molten metal 30 is entirely coated with a metal protective layer to protect it from oxidation. This metal protective layer can be a tin plating layer or other types of metal oxide protective layers, and is not limited to a single type.

[0033] For example, the number of molten metal 30 can be one or more. When multiple molten metal 30 are provided, multiple molten metal 30 can be connected in parallel on the first mounting member 40, or multiple fusing parts can be provided on one molten metal. The connection method between each molten metal 30 and the first mounting member 40 is the same, which will not be described in detail here.

[0034] In practice, the first product specification refers to the specific shape and size parameters of the molten metal. The raw material of the molten metal can be a long strip of metal, such as copper strip / sheet, silver strip / sheet, or copper-silver composite material. When multiple fracturing sections are provided on the molten metal, CNC technology is first used to reduce the surface thickness of the first region of the raw material of the molten metal (such as the preset length region in the middle of the strip / sheet molten material) on a CNC machine tool through milling, thereby thinning the first region to meet the thickness requirements of the molten metal, thus obtaining the fracturing section; the unthinned positions at both ends serve as the end electrode parts of the molten metal, namely the first electrode part and the second electrode part; then, several rows of through holes are formed at the first preset position of the thinned first region by punching with a first punching die or laser cutting, and the lateral spacing between two through holes serves as the metal melt. The easily fusible narrow neck 331 is bent into multiple arc segments at the second preset position of the fusible section using a bending die to obtain a third molten metal. A narrow groove is stamped at the third preset position of the first electrode to obtain a third limiting part, and a narrow groove is stamped at the fourth preset position of the second electrode to obtain a fourth limiting part, serving as a limiting slot to restrict the left and right movement (third and fourth directions) of the molten metal. The end of the first electrode is bent upward to form a first limiting part to restrict the forward and backward movement (first and second directions) of the molten metal, and the end of the second electrode is bent upward to form a second limiting part to restrict the forward and backward movement of the molten metal. Optionally, glue or tin dispensing operations can be performed near the narrow neck 331, the first limiting part, and the second limiting part according to design requirements. Finally, the molten metal that meets the design requirements is obtained by tinning the entire third molten metal or tinning the end electrodes.

[0035] In an optional embodiment, the step of preparing the molten material into a molten metal according to the first product specification includes: thinning a first region of the molten material by milling to obtain a first molten metal; forming a plurality of narrow necks 331 on the first molten metal using a first punching die to obtain a second molten metal; forming a plurality of protrusions on the second molten metal using a bending die to obtain a third molten metal; dividing the third molten metal along its width direction to obtain a plurality of fused portions; preparing a first electrode portion and a second electrode portion based on the molten material; and welding the two ends of the plurality of fused portions to the first electrode portion and the second electrode portion respectively to obtain the molten metal.

[0036] In a specific implementation, when multiple fusing sections are provided on the molten metal, the multiple fusing sections 33 can share a first electrode section 31 and a second electrode section 32. For example, the number of fusing sections 33 can be one or more. When there is only one fusing section 33, the two ends of the fusing section 33 are respectively connected to the first electrode section 31 and the second electrode section 32. When multiple fusing sections 33 are provided, the first end of each fusing section 33 is connected to the same first electrode section 31, and the second end of each second molten metal is connected to the same second electrode section 32. That is, the connection method between the multiple fusing sections 33 and the first electrode section 31 and the second electrode section 32 is the same.

[0037] Optionally, the structure of each molten metal 30 can be the same or different, and the structure of each fused section 33 can be the same or different; no uniqueness is required here.

[0038] Optionally, one or more fusible portions 33 can be connected to the first electrode portion 31 and the second electrode portion 32 by welding, and then at least one molten metal 30 obtained after welding can be connected to the first mounting member 40 (specifically the first wiring member 410) and the second mounting member 50 (specifically the second wiring member 510).

[0039] Specifically, a wide strip of copper material can be prepared. First, using CNC machining, the surface thickness of the molten material is reduced in the first region by milling to thin the material into molten metal. Then, several easily fusible narrow necks 331 are formed at specific locations on the molten metal using a punching die. Next, several arc-shaped sections 332 are bent at specific locations on the molten metal using a bending die to form bent sections 332. Then, the first electrode section 31 and the second electrode section 32 are tin-plated. Finally, the metal material is folded in half along its width to obtain the desired shape. Figure 9 The metal melt 30 shown.

[0040] like Figure 10 In another structural form of the molten metal 30, two thin copper strips are stamped and bent to obtain the required narrow neck and bent portion 332. Then, the completed molten metal 30 is welded to the flat first electrode portion 31 and second electrode portion 32 using resistance welding, resulting in the following structure: Figure 10 The metal melt 30 shown.

[0041] In an optional example, the step of preparing the molten raw material into a molten metal according to the first product specification includes: thinning multiple molten raw materials by a milling process to obtain multiple first molten materials; forming multiple narrow necks 331 on the multiple first molten materials using a first punching die to obtain multiple second molten materials; forming multiple protrusions on the multiple second molten materials using a bending die to obtain multiple third molten materials; preparing a first electrode portion and a second electrode portion based on the molten raw material; and welding both ends of each of the multiple third molten materials to the first electrode portion and the second electrode portion respectively to obtain the molten metal.

[0042] In practice, multiple molten raw materials can be used to prepare multiple molten sections, and then the multiple molten sections can be welded onto the first electrode section and the second electrode section. This can eliminate the segmentation step and further improve the preparation efficiency.

[0043] It can be seen that the internal cavity space of existing tubular photovoltaic fuses is limited, and only a single metal fusible element 30 can be used. The rated current that can be met is generally only below 30A. In the integrated photovoltaic fuse of this application embodiment, after the first shell 10 and the second shell 20 are combined, the internal space volume is increased by more than 10 times compared with the existing products while changing the overall volume. Therefore, a structure of multiple metal fusible elements 30 connected in parallel can be realized, and the rated current of the product can be increased to more than 50A, which greatly improves the breaking capacity of the photovoltaic fuse.

[0044] Step S103: The shell material is injection molded according to the second product specifications to obtain the first shell and the second shell.

[0045] In one possible embodiment, the step of injection molding the shell material according to the second product specification to obtain a first shell and a second shell includes: drying the shell material to adjust the moisture content of the shell material to ≤0.03% to obtain a spare shell material; injecting the spare shell material into a multi-cavity mold and molding it using segmented temperature control to obtain the first shell and the second shell respectively; wherein the surface roughness of the mold cavity of the multi-cavity mold is Ra≤0.2μm.

[0046] In practice, the second product specification refers to the specific shape and size parameters of the first and second shells. Both the first and second shells are made of PA66 + 30% glass fiber material and are manufactured into the required shapes through injection molding. Before injection molding, the shell material must undergo strict drying treatment to control the moisture content to ≤0.03% to avoid defects such as bubbles and silver streaks during molding. The multi-cavity mold adopts a multi-cavity structure, with the number of cavities selected according to production efficiency requirements. The mold cavity surfaces are mirror-polished with a roughness Ra≤0.2μm to ensure that the surface finish of the first and second shells after molding meets the product's appearance and performance requirements.

[0047] Specifically, the segmented temperature control includes setting the temperature of the front section of the barrel to 260-270℃, the temperature of the middle section to 250-260℃, the temperature of the rear section to 240-250℃, and the temperature of the nozzle to 270-280℃; during injection molding, the feeding speed of the rapid filling stage is set to 70-90mm / s, and the feeding speed of the holding pressure stage is reduced to 15-25mm / s.

[0048] In practice, during injection molding, the barrel temperature is set at 260-270℃ for the front section, 250-260℃ for the middle section, and 240-250℃ for the rear section. The nozzle temperature is set at 270-280℃. The injection speed of the shell material in the barrel employs a variable speed control strategy, starting fast and gradually decreasing. During the rapid filling phase, the injection speed is 70-90 mm / s, while during the holding pressure phase, the speed drops to 15-25 mm / s. This ensures a dense internal structure and eliminates issues such as shrinkage marks and material shortages. Through precise injection molding process control, the first and second shells are molded into the designed shape, with dimensional accuracy controlled within ±0.5 mm and wall thickness uniformity deviation ≤0.1 mm, meeting subsequent assembly and performance requirements.

[0049] Furthermore, the first housing is placed in a special fixture for the bottom housing, and a visual dispensing machine is used to apply sealing silicone around the upper surface of the side wall of the arc-extinguishing chamber in the first housing, ensuring uniform thickness and no overflow.

[0050] Step S104: According to the third product specification, the raw material of the mounting part is stamped to obtain the first mounting part and the second mounting part.

[0051] In one possible embodiment, the step of stamping the mounting material according to the third product specification to obtain the first mounting part and the second mounting part includes: controlling a CNC machine tool to perform a cutting operation on the mounting material to obtain a plurality of first unfolded parts; punching the plurality of first unfolded parts with a second punching die to obtain a plurality of second unfolded parts; bending the plurality of second unfolded parts with a forming tool to obtain a first wiring component, a second wiring component, a first clamping component, and a second clamping component; assembling the first wiring component and the first clamping component to obtain the first mounting part; and assembling the second wiring component and the second clamping component to obtain the second mounting part.

[0052] In practice, the third product specification refers to the specific shape and size parameters of the first and second mounting components, which are parts of the same specification. The raw material for the mounting components can be a sheet of metal. First, a first unfolded part can be cut from the sheet using a CNC machine tool. This first unfolded part forms the basic shape of both the first and second mounting components. Multiple first unfolded parts include at least two shapes: one is the unfolded shape of the wiring component, and the other is the unfolded shape of the clamping component. Then, using a special die on a punch press, round holes are punched into the multiple first unfolded shapes to obtain the second unfolded parts, i.e., unfolded shapes with holes. Both the unfolded shapes of the wiring component and the clamping component have these round holes. Next, using a bending machine or stamping die, the multiple second unfolded parts are bent at the required angle along a preset bending line to obtain the corresponding first wiring component, second wiring component, first clamping component, and second clamping component. Finally, assembling the first clamping component and the first wiring component yields the first mounting component, and assembling the second clamping component and the second wiring component yields the second mounting component.

[0053] Specifically, the first clamping component and the first wiring component can be assembled using a first fixing member. The first fixing member can be independently manufactured or directly purchased from readily available materials; there is no specific limitation on its type. Optionally, the first fixing member can be a screw. When the first fixing member is a screw, it is passed sequentially through the circular holes on the first clamping component and the first wiring component to fix them together as a single unit. The second clamping component and the second wiring component can be assembled using a second fixing member. The second fixing member can be independently manufactured or directly purchased from readily available materials; there is no specific limitation on its type. Optionally, the second fixing member can be a screw. When the second fixing member is a screw, it is passed sequentially through the circular holes on the second clamping component and the second wiring component to fix them together as a single unit.

[0054] As can be seen, in this embodiment, the raw materials of the mounting component are stamped according to the third product specification to prepare the first mounting component and the second mounting component, which provide the main component support for the subsequent assembly of the integrated photovoltaic fuse.

[0055] Step S105: Assemble the arc-extinguishing medium, the first housing, the second housing, the first mounting component, the second mounting component, and the molten metal to obtain an integrated photovoltaic fuse.

[0056] In practice, there are several ways to assemble integrated photovoltaic fuses. The following is an introduction based on two assembly methods.

[0057] Assembly method 1: In one possible embodiment, assembling the arc-extinguishing medium, the first housing, the second housing, the first mounting component, the second mounting component, and the molten metal to obtain an integrated photovoltaic fuse includes: respectively setting the first mounting component and the second mounting component in a first mounting groove and a second mounting groove of the first housing; setting the molten metal in the first arc-extinguishing groove of the first housing, and inserting the first electrode portion and the second electrode portion of the molten metal into the first wiring component and the second wiring component, respectively; installing a stop block on the stop mounting portion of the first housing; covering the first housing with the second housing and fixing it with a third fixing component to obtain a first fuse; and loading the arc-extinguishing medium into the first fuse to obtain the integrated photovoltaic fuse.

[0058] In specific implementation, the assembled first and second mounting components are placed into the first and second mounting chambers on the left and right sides of the first housing, respectively. Then, the molten metal is placed into the arc-extinguishing chamber in the first housing. The first electrode portion of the molten metal passes through the first connecting hole 16 connecting the arc-extinguishing chamber and the first mounting chamber into the first mounting chamber and connects to the first wiring component in the first mounting component. The second electrode portion passes through the second connecting hole 26 connecting the arc-extinguishing chamber and the second mounting chamber into the first mounting chamber and connects to the first wiring component in the first mounting component. At this time, the third limiting portion on the first electrode portion of the molten metal is supported and restricted on the first connecting hole, and the fourth limiting portion on the second electrode portion is supported and restricted on the second connecting hole. The bent surface of the first limiting portion on the first electrode portion tightly adheres to the outer wall surface of the screw seat, forming a strict limit; the bent surface of the second limiting portion on the second electrode portion tightly adheres to the outer wall surface of the screw seat, forming a strict limit.

[0059] After placing the first mounting component, the second mounting component, and the molten metal, a stop block is inserted into the stop mounting part of the first housing, and then the second housing is covered. A pressure of 20 MPa is applied evenly to ensure that the upper surface of the first arc-extinguishing groove sidewall of the second housing is initially bonded to the upper surface of the second arc-extinguishing groove sidewall through the applied sealing silicone. The first positioning hole 15 on the first housing and the second positioning hole 25 on the second housing correspond to each other during assembly and are then fixed by a third fastener, which is tightened in one go using a riveting machine. The third fastener can be a flanged rivet. The number of the first positioning hole, the second positioning hole, and the third fastener is unlimited.

[0060] Furthermore, the arc-extinguishing medium is filled using a vibration filling process, employing refined quartz sand with a particle size of 50-100 mesh, a silica content ≥99.9%, and a moisture content ≤0.1%. Before filling, the assembled first fuse is preheated at 40-50℃ to reduce the surface tension of the material and improve the filling effect. Then, the first and second sand-filling holes on the first and second shells are vertically fixed face-up on an electromagnetic vibration table. The vibration frequency is set to 20-30Hz, and the amplitude is 0.5-1.0mm. The arc-extinguishing medium is uniformly and tightly filled into the arc-extinguishing chamber formed by the combination of the first and second arc-extinguishing groove sidewalls under the action of gravity and vibration through the first and second sand-filling holes, ensuring that the arc-extinguishing medium tightly surrounds the molten metal. The filling quality is monitored by weighing. After filling, a density detection device is used to ensure that the filling density reaches 1.65-1.75g / cm³, guaranteeing that the arc-extinguishing material fully functions when the integrated photovoltaic fuse breaks the circuit. After the arc-extinguishing medium weight filling requirement is met, anti-sand plugs are pressed into the surfaces of the first and second sand filling holes to prevent the arc-extinguishing medium from leaking out. Then, silicone sealant is applied to the surface of the anti-sand plugs to increase strength and sealing performance.

[0061] After sand filling is completed, the residual arc-extinguishing medium on the product surface is cleaned, the product resistance value is tested, and the product label is printed to complete the assembly process of the integrated photovoltaic fuse unit described in this invention.

[0062] As can be seen, in this embodiment, an integrated photovoltaic fuse is obtained by assembly, and many components such as fuse clips, spring clips, and spring clips in existing photovoltaic fuses are eliminated. This allows for the use of metal fuses with larger rated current while increasing the internal space of the photovoltaic fuse, thereby reducing costs and increasing efficiency.

[0063] Assembly method 2: In one possible embodiment, assembling the arc-extinguishing medium, the first housing, the second housing, the first mounting component, the second mounting component, and the molten metal to obtain an integrated photovoltaic fuse includes: respectively setting the first mounting component and the second mounting component in a first mounting groove and a second mounting groove of the first housing; setting the molten metal in the first arc-extinguishing groove of the first housing, and inserting the first electrode portion and the second electrode portion of the molten metal into the first wiring component and the second wiring component, respectively; adding the arc-extinguishing medium into the first arc-extinguishing groove, and installing a stop block on the stop mounting portion of the first housing; covering the first housing with the second housing and fixing it with a third fixing component to obtain the integrated photovoltaic fuse.

[0064] In practice, compared to assembly method 1, assembly method 2 requires switching the assembly and sand filling steps of the first and second housings in the integrated photovoltaic fuse. The specific process is as follows: After placing the first mounting component, the second mounting component, and the molten metal, the arc-extinguishing medium is directly added into the first arc-extinguishing groove and continuously vibrated to level it until the upper edge of the arc-extinguishing medium is parallel to the upper surface of the side wall of the first arc-extinguishing groove. Then, a stop block is placed on the stop mounting part of the first housing, and the second housing is placed on top of the first housing and fixed by the third fixing component. Then, the first positioning hole 15 on the first housing and the second positioning hole 25 on the second housing are combined and matched to each other, and then fixed by the third fixing component. The third fixing component can be a flanged rivet. The number of the first positioning hole, the second positioning hole, and the third fixing component is unlimited.

[0065] As can be seen, in this embodiment, an integrated photovoltaic fuse is obtained by assembly, and many components such as fuse clips, spring clips, and spring clips in existing photovoltaic fuses are eliminated. This allows for the use of metal fuses with larger rated current while increasing the internal space of the photovoltaic fuse, thereby reducing costs and increasing efficiency.

[0066] Please see Figures 2 to 10 This application also provides an integrated photovoltaic fuse 100, which is used in photovoltaic equipment, such as... Figure 2 , Figure 3 , Figure 4 and Figure 5The integrated photovoltaic fuse 100 includes a first housing 10, a second housing 20, and at least one molten metal element 30. The first housing 10 and the second housing 20 are combined to form an internal cavity, which includes a first mounting chamber 120, a second mounting chamber 130, and an arc-extinguishing chamber 110. A first electrode portion 31 is provided at the first end of the at least one molten metal element 30, and the first electrode portion 31 is installed in the first mounting chamber 120. A second electrode portion 32 is provided at the second end of the at least one molten metal element 30, and the second electrode portion 32 is installed in the second mounting chamber 130. The fuse portion 33 of the at least one molten metal element 30 is accommodated in the arc-extinguishing chamber 110, which is filled with an arc-extinguishing medium. A first terminal 1020 communicates with the first mounting chamber 120, and a second terminal 1122 communicates with the second mounting chamber 130.

[0067] In this embodiment, a photovoltaic fuse integrating the fuse and housing is formed by combining a first housing 10, a second housing 20, and at least one molten metal element 30, which differs from the existing separate structure of the fuse and base. This allows the housing, which has the shape of the base in the existing technology, to form a larger internal cavity, improving the overall breaking capacity of the product. Consequently, a molten metal element 30 with a larger rated current can be used. In addition, to avoid high-voltage arcing caused by increased breaking voltage, this embodiment sets a sealed arc-extinguishing chamber 110 in the internal cavity. The arc-extinguishing chamber 110 is filled with an arc-extinguishing medium, which effectively eliminates high-voltage arcing and prevents the housing from being burned by high-voltage arcing.

[0068] Optionally, the arc-extinguishing medium can be quartz sand with a purity of 99.9% or higher, with a mesh size of 50-100, as the arc-extinguishing material, and is filled into the arc-extinguishing chamber 110 through the first sand filling hole 11 on the first housing 10 and / or the second sand filling hole 21 on the second housing 20; after the arc-extinguishing medium is filled, a sand-stopping plug is pressed into the first sand filling hole 11 and / or the second sand filling hole 21 to prevent the arc-extinguishing medium from flowing out of the arc-extinguishing chamber 110 when the product is reversed.

[0069] For further details, please refer to Figure 3 , Figure 4 and Figure 5The first mounting chamber 120 and the second mounting chamber 130 are respectively used to fix the first electrode portion 31 and the second electrode portion 32 of at least one molten metal 30, so that at least one molten metal 30 is fixed in the internal cavity. At the same time, the first mounting chamber 120 and the second mounting chamber 130 are also respectively provided with a first wiring port 1020 and a second wiring port 1122, so that the integrated photovoltaic fuse 100 in this embodiment can introduce the main circuit wires by introducing the first wire and the second wire from the first wiring port 1020 and the second wiring port 1122 respectively, so that the first wire is connected to the first electrode portion 31 and the second wire is connected to the second electrode portion 32, thereby connecting the integrated photovoltaic fuse 100 into the main circuit.

[0070] In order to replace the existing photovoltaic fuse mounting base, the shape of the fuse housing after the combination of the first housing 10 and the second housing 20 in this embodiment is similar to that of the existing photovoltaic fuse, which can perfectly replace the existing photovoltaic fuse. At the same time, the detachable structure of the existing fuse and the base is improved into an integrated connection structure, and the base is improved into the fuse housing of the integrated photovoltaic fuse 100. Without changing the volume of the existing photovoltaic fuse, the internal usable space of the photovoltaic fuse is increased, the breaking capacity of the photovoltaic fuse is improved, and a metal fusible element 30 with a stronger rated current can be selected.

[0071] For example, in order to achieve pin-to-pin replacement with existing photovoltaic fuse mounting bases, the housing structure in this example retains the pull-out handle 101 portion of the existing mounting base. That is, the integrated photovoltaic fuse 100 includes a pull-out handle 101, which is formed by combining a first housing 10 and a second housing 20. Specifically, a first handle 102 is provided on the first housing 10, and a second handle 103 is provided on the second housing 20. When the first housing 10 and the second housing 20 are combined, the first handle 102 and the second handle 103 combine to form the pull-out handle 101. The housing consists of two parts: the first housing 10 and the second housing 20. Except for the sand filling hole, the preset positions or overall edges of each side wall of the first housing 10 adopt a constricted structure, which allows the second housing 20 to be placed inside the constricted edge of the first housing 10, thereby ensuring that the relative position of the second housing 20 and the first housing 10 will not move after being combined and installed. The outermost part is fixed and locked by bolts or other means through the first positioning through hole provided on the first housing 10 and the second positioning through hole provided on the second housing 20.

[0072] For example, the first housing 10 and / or the second housing 20 are provided with one or more first sand filling holes 11 and / or one or more second sand filling holes 21. The first sand filling holes 11 and the second sand filling holes 21 are respectively located away from the first positioning through hole and the second positioning through hole, thereby preventing sand particles from falling into the first positioning through hole and / or the second positioning through hole during the sand filling process. This avoids affecting the tightening degree of the screws in the first positioning through hole and / or the second positioning through hole, and avoids increasing the contact resistance between the external wire and the molten metal 30, or, in severe cases, affecting the reliability of the product.

[0073] Because the sand filling process for the integrated photovoltaic fuse 100 generates significant dust, in this embodiment, the first sand filling hole 11 and / or the second sand filling hole 21 are formed on the bottom surface of the first housing 10 and / or the second housing 20 structure, and are not in the same direction as the first positioning through hole and / or the second positioning through hole. This ensures that the sand filling process will not affect the subsequent electrical connection characteristics of the product. However, since the compaction of the arc-extinguishing material is much more difficult when the product is laid flat than when it is placed vertically, this embodiment uses four first sand filling holes 11 and / or second sand filling holes 21 arranged side by side to minimize this impact and improve sand filling efficiency.

[0074] Optional, please refer to Figure 5 The second housing 20 can also be a flat plate structure, in which case it is equivalent to a cover plate. The molten metal 30, the first wiring component 410 and the second wiring component 510 and the arc extinguishing medium are all completely inside the bottom housing. A groove is formed on the upper part of the side wall of the bottom housing to accommodate and seal the side wall of the second housing 20, ensuring that the first housing 10 and the second housing 20 will not move relative to each other after they are closed.

[0075] In one possible embodiment, the combined dimensions and structure of the first housing 10 and the second housing 20 are not limited to the dimensions and structure of existing photovoltaic fuse mounting bases. They can be designed into other required structures to adapt to different occasions where fuses are installed using mounting bases. No unique limitation is made here.

[0076] Optionally, both the first shell 10 and the second shell 20 are made of high-temperature resistant engineering plastics through processes such as injection molding. The high-temperature resistant engineering plastics can be PA66, PPS, PA66+30%GF, PPS+40%GF, PARA, etc., or other materials, and are not limited to a single material here.

[0077] In one possible embodiment, the integrated photovoltaic fuse 100 further includes a first mounting member 40 and a second mounting member 50; the first mounting member 40 is fixed in the first mounting chamber 120, and the first electrode portion 31 is fixed on the first mounting member 40; the second mounting member 50 is fixed in the second mounting chamber 130, and the second electrode portion 32 is fixed on the second mounting member 50.

[0078] In a specific implementation, the shape of the first mounting member 40 is adapted to the first mounting chamber 120. After the first housing 10 and the second housing 20 are combined to form a fuse housing, the first mounting chamber 120 formed clamps and fixes the first mounting member 40 through the first housing 10 and the second housing 20.

[0079] For further details, please refer to Figure 3 and Figure 7 The first mounting component 40 includes a first wiring component 410 and a first clamping component 420. The first wiring component 410 is provided with a first penetrating cavity 411. The first clamping component 420 includes a first clamping end 421 and a second clamping end 422. The first clamping end 421 is inserted into the first penetrating cavity 411, so that the first clamping end 421 and the second clamping end 422 are respectively disposed on both sides of the first wall plate of the first penetrating cavity 411, and the second electrode part 32 is clamped by the first wiring component 410 and the first clamping component 420.

[0080] Furthermore, a first connecting hole is provided on the first wall plate of the first penetrating cavity 411; a second connecting hole is provided on the first clamping end 421, and a third connecting hole is provided on the second clamping end 422. The first wiring component 410 and the first clamping component 420 are connected and fixed together by the first fixing member 430 and the first connecting hole, the second connecting hole and the third connecting hole, and the first electrode part 31 is clamped by the clamping force when they are connected.

[0081] Optionally, the first connection hole includes a first sub-connection hole and a second sub-connection hole; the first wiring component 410 is formed by rolling and enclosing a first plate, and the two ends of the first plate overlap each other in the circumferential direction after rolling to form a closed columnar peripheral wall and form a first penetration cavity 411; the first sub-connection hole and the second sub-connection hole are respectively provided at the two ends of the first plate in the circumferential direction.

[0082] Specifically, the integrated first sheet is rolled, and the two ends of the first sheet (such as...) are rolled... Figure 7The first plate end 413 and the second plate end 414 shown are overlapped and sealed to roll the first plate into a shape similar to a hollow body, such as the shape of a ring; at the same time, through holes are provided in the overlapping part of the first plate to obtain the first sub-connecting hole and the second sub-connecting hole respectively. The overlapping part is set as the first wall plate between the first clamping end 421 and the second clamping end 422, which can effectively prevent the two ends of the first plate from deforming and separating.

[0083] In specific implementation, the first opening 412 of the first penetration cavity 411 is the inlet for the molten metal 30, which enters the first penetration cavity 411 through the first opening 412 for fixation; the first wire passes through the first connection port 1020 and the third opening 512 in sequence into the first penetration cavity 411 and connects to the first electrode part 31. Specifically, the first clamping member 420 is provided with two clamping ends, the first clamping end 421 is inserted into the first penetration cavity 411 to accommodate the first wall plate of the first connection member 410 between the first clamping end 421 and the second clamping end 422; at the same time, the first electrode part 31 is disposed below the first clamping end 421, that is, the first clamping end 421 is disposed between the first electrode part 31 and the first wall plate; when the first wire is connected to the first connection port 1020, the first wire is disposed below the first electrode part 31, that is, the first electrode part 31 is disposed between the first clamping end 421 and the first wire.

[0084] Furthermore, the first penetration cavity 411 is used to access the first wire. When the first wire is housed in the first penetration cavity 411, the position of the first clamping end 421 in the first penetration cavity 411 is adjusted by the first fixing member 430 to clamp the first wire in the first penetration cavity 411.

[0085] The first fixing member 430 can be a screw or other connecting member (such as a lifting structure, a screw and spring combination structure, etc.). The first fixing member 430 passes through the first connecting hole, the second connecting hole and the third connecting hole and contacts the first electrode part 31. After the first wire is connected to the first terminal 1020, the first fixing member 430 moves the first wall plate toward the second clamping end 422, thereby driving the first wiring component 410 to move toward the second clamping end 422. During this process, the first clamping end 421 gradually compresses the space of the first penetration cavity 411, thereby clamping the first wire and the first electrode part 31 together, so that the first wire and the first electrode part 31 can be electrically connected.

[0086] For example, after the first housing 10 and the second housing 20 are combined, a first mounting hole 14 is formed. The first mounting hole 14 communicates with the first mounting chamber 120. The first fixing member 430 is correspondingly provided with the first mounting hole 14. When it is necessary to adjust the position of the first clamping end 421 in the first penetrating cavity 411, the first fixing member 430 is adjusted through the first mounting hole 14, thereby realizing the adjustment of the position of the first clamping end 421 in the first penetrating cavity 411.

[0087] As can be seen, in this embodiment, the first clamping component 420 is connected to the lower first wiring component 410, and the first fixing component 430 lifts the first wiring component 410 upwards. This allows the first wire inserted into the first wiring component 410 to be lifted upwards simultaneously, gradually compressing the internal space of the first penetration cavity 411 from the first clamping end 421. This, in turn, gradually presses the first wire against the first electrode portion 31 within the first wiring component 410 to form a good electrical connection. The special structure of the first mounting component 40 enables a stable electrical connection between the first wire and the first electrode portion 31, improving the reliability of the integrated photovoltaic fuse 100.

[0088] Similarly, please refer to Figure 3 and Figure 8 The second mounting component 50 includes a second wiring component 510 and a second clamping component 520; the second wiring component 510 is provided with a second penetration cavity 511, and the second clamping component 520 includes a third clamping end 521 and a fourth clamping end 522; the third clamping end 521 passes through the second penetration cavity 511, and the third clamping end 521 and the fourth clamping end 522 are respectively disposed on both sides of the second wall plate of the second penetration cavity 511, and the second electrode part 32 is clamped by the second wiring component 510 and the second clamping component 520.

[0089] Furthermore, a fourth connecting hole is provided on the second wall plate of the penetration cavity; a fifth connecting hole is provided on the third clamping end 521, and a sixth connecting hole is provided on the fourth clamping end 522. The second wiring component 510 and the second clamping component 520 are connected and fixed together by the second fixing member 530 and the fourth connecting hole, the fifth connecting hole and the sixth connecting hole, and the second electrode part 32 is clamped by the clamping force when they are connected.

[0090] Optionally, the second connection hole includes a third sub-connection hole and a fourth sub-connection hole; the second wiring component 510 is formed by rolling and enclosing a second plate, and the two ends of the second plate overlap each other in the circumferential direction after rolling to form a closed column wall and form a second penetration cavity 511; the second plate is provided with a third sub-connection hole and a fourth sub-connection hole at its two circumferential ends respectively.

[0091] Specifically, the integrated second sheet is rolled, and the two ends of the second sheet (such as...) are rolled... Figure 8 The third plate end 513 and the fourth plate end 514 shown are overlapped and sealed to roll the second plate into a shape similar to a hollow body, such as the shape of a ring; at the same time, through holes are provided in the overlapping part of the second plate to obtain the third sub-connecting hole and the fourth sub-connecting hole respectively. The overlapping part is set as the second wall plate between the third clamping end 521 and the fourth clamping end 522, which can effectively prevent the two ends of the second plate from deforming and separating.

[0092] In specific implementation, the third opening of the second penetration cavity 511 is the inlet for the second molten metal 30, and the molten metal 30 enters the second penetration cavity 511 through the third opening for fixation; the fourth opening of the second penetration cavity 511 is the second wiring port 1122, and the second wire passes through the second wiring port 1122 and the fourth opening in sequence to enter the second penetration cavity 511 and connect to the second electrode part 32. The second clamping member 520 is also provided with two clamping ends, and the third clamping end 521 enters the second penetration cavity 511 to accommodate the first wall plate of the second wiring member 510 between the third clamping end 521 and the fourth clamping end 522; at the same time, the second electrode part 32 is disposed below the third clamping end 521, that is, the third clamping end 521 is disposed between the second electrode part 32 and the second wall plate; when the second wire is connected to the second wiring port 1122, the second wire is disposed below the second electrode part 32, that is, the second electrode part 32 is disposed between the third clamping end 521 and the second wire.

[0093] Furthermore, the second penetration cavity 511 is used to access the second wire. When the second wire is housed in the second penetration cavity 511, the position of the third clamping end 521 in the second penetration cavity 511 is adjusted by the second fixing member 530 to clamp the second wire in the second penetration cavity 511.

[0094] The second fixing member 530 can be a screw or other connecting member (such as a lifting structure). The second fixing member 530 passes through the fourth connecting hole, the fifth connecting hole and the sixth connecting hole and contacts the second electrode part 32. When the second wire is connected to the second terminal 1122, the second fixing member 530 moves the second wall plate toward the fourth clamping end 522, thereby driving the second wiring component 510 to move toward the fourth clamping end 522. During this process, the third clamping end 521 gradually compresses the space of the second penetration cavity 511, thereby clamping the second wire and the second electrode part 32 together so that the second wire and the second electrode part 32 are electrically connected.

[0095] For example, after the first housing 10 and the second housing 20 are combined, a second mounting hole 24 is formed. The second mounting hole 24 communicates with the second mounting chamber 130. The second fixing member 530 is correspondingly provided with the second mounting hole 24. When it is necessary to adjust the position of the third clamping end 521 in the second penetrating cavity 511, the second fixing member 530 is adjusted through the second mounting hole 24, thereby realizing the adjustment of the position of the third clamping end 521 in the second penetrating cavity 511.

[0096] As can be seen, in this embodiment, the second clamping component 520 is connected to the lower second wiring component 510, and the second fixing component 530 lifts the second wiring component 510 upwards. This allows the second wire inserted into the second wiring component 510 to be lifted upwards simultaneously, and the third clamping end 521 gradually compresses the internal space of the second penetration cavity 511, thereby gradually pressing the second wire and the second electrode portion 32 within the second wiring component 510 to form a good electrical connection. The special structure of the second mounting component 50 enables the second wire to achieve a stable electrical connection with the second electrode portion 32, improving the reliability of the integrated photovoltaic fuse 100. Furthermore, by extending the two end electrodes of the molten metal 30 in the integrated photovoltaic fuse 100 outside the arc-extinguishing chamber 110 and reaching the first mounting component 40, it can be directly connected to the external circuit, thereby reducing the contact resistance with the external circuit and further improving the reliability of the product application.

[0097] In one possible embodiment, please refer to Figure 6 , Figure 9 and Figure 10 The molten metal 30 includes one or more fusing portions 33, with a first end of each fusing portion 33 connected to the first electrode portion 31 and a second end of each fusing portion 33 connected to the second electrode portion 32.

[0098] In a specific implementation, the molten metal 30 can be a one-piece molded structure made of copper. The material is thinned by milling along a specific length in its middle to form the fusing section 33. The unthinned portions connected to both ends of the fusing section 33 are the first electrode section 31 and the second electrode section 32. The fusing section 33 has easily fusible necks 331. When the current exceeds the fusing current, the necks 331 are the first to fuse, thus protecting the photovoltaic modules, inverters, combiner boxes, and other equipment on the main circuit. Optionally, the fusing section 33 may also have a bending section 332. This bending section 332 is a protruding structure formed by the fusing section being concave from one side to the other, such as a semi-circle or an arc. This bending section 332 prevents stress from pulling the necks 331 during installation and also prevents direct arc connection between the necks 331, improving arc extinguishing capability. In addition, the molten metal 30 is also coated with a metal protective layer to protect it from oxidation. This metal protective layer can be a tin plating layer or other types of metal oxide protective layer, and is not limited to a single type.

[0099] For example, the number of molten metal 30 can be one or more. When multiple molten metal 30 are provided, multiple molten metal 30 can be connected in parallel on the first mounting member 40. The connection method between each molten metal 30 and the first mounting member 40 is the same, which will not be described in detail here.

[0100] In one optional example, please refer to Figure 9 and Figure 10 When multiple molten metals 30 are provided, the multiple molten metals 30 can share a first electrode portion 31 and a second electrode portion 32; for example, the number of fusing portions 33 can be one or more. When there is only one fusing portion 33, the two ends of the fusing portion 33 are respectively connected to the first electrode portion 31 and the second electrode portion 32; when multiple fusing portions 33 are provided, the first end of each fusing portion 33 is connected to the same first electrode portion 31, and the second end of each second molten metal is connected to the same second electrode portion 32; that is, the connection method between the multiple fusing portions 33 and the first electrode portion 31 and the second electrode portion 32 is the same.

[0101] Optionally, the structure of each molten metal 30 can be the same or different, and the structure of each fused section 33 can be the same or different; no uniqueness is required here.

[0102] Optionally, one or more fusible portions 33 can be connected to the first electrode portion 31 and the second electrode portion 32 by welding, and then at least one molten metal 30 obtained after welding can be connected to the first mounting member 40 (specifically the first wiring member 410) and the second mounting member 50 (specifically the second wiring member 510).

[0103] It can be seen that the internal cavity space of existing tubular photovoltaic fuses is limited, and only a single metal fusible element 30 can be used. The rated current that can be met is generally only below 30A. In the integrated photovoltaic fuse of this application embodiment, after the first shell 10 and the second shell 20 are combined, the internal space volume is increased by more than 10 times compared with the existing products while changing the overall volume. Therefore, a structure of multiple metal fusible elements 30 connected in parallel can be realized, and the rated current of the product can be increased to more than 50A, which greatly improves the breaking capacity of the photovoltaic fuse.

[0104] For further information, please refer to [link / reference]. Figure 6 , Figure 9 and Figure 10 The first electrode portion 31 is provided with a first limiting portion 34. When the first electrode portion 31 is clamped between the first wiring component 410 and the first clamping component 420, the first electrode portion 31 passes through the third opening 512 of the first penetration cavity 411 from the first opening 412 of the first penetration cavity 411. The first limiting portion 34 and the wall plate of the third opening 512 form a limiting structure. The second electrode portion is provided with a second limiting portion 35. When the second electrode portion 32 is clamped between the second wiring component 510 and the second clamping component 520, the second electrode portion 32 passes through the fourth opening of the second penetration cavity 511 from the third opening of the second penetration cavity 511. The second limiting portion 35 and the wall plate of the fourth opening form a limiting structure.

[0105] In a specific implementation, at the end of the first end of the molten metal 30 (i.e., the end of the first electrode portion 31 away from the fusible portion 33 / arc-extinguishing chamber 110), a first limiting portion 34 is provided perpendicularly to the first electrode portion 31, so that the first end of the molten metal 30 forms a protruding shape and is disposed on one side of the wall plate of the third opening 512 of the first penetration cavity 411, thereby limiting the first wiring component 410 in the first mounting member 40 in a first direction, wherein the first direction refers to the direction from the first electrode portion 31 toward the fusible portion 33. Similarly, at the end of the second end of the molten metal 30 (i.e., the end of the second electrode portion 32 away from the fusible portion 33 / arc-extinguishing chamber 110), a second limiting portion 35 is provided perpendicularly to the second electrode portion 32, so that the second end of the molten metal 30 forms a protruding shape and is disposed on one side of the wall plate of the fourth opening of the second penetration cavity 511, thereby limiting the second wiring component 510 in the second mounting member 50 in a second direction, wherein the second direction refers to the direction from the second electrode portion 32 toward the fusible portion 33.

[0106] As can be seen, in this embodiment, by forming a limiting part at each of the two ends of the molten metal 30 and closely fitting it with the outer wall of the corresponding wiring component wall material, displacement of the molten metal 30 in the first and second directions is prevented when it is connected to the external connecting wire, so that the molten metal 30 will not have a positional deviation when the photovoltaic fuse is connected to the external wire.

[0107] In one possible embodiment, the first electrode portion 31 is further provided with a third limiting portion 36, and the second electrode portion 32 is further provided with a fourth limiting portion 37; when the first housing 10 and the second housing 20 are combined, they are respectively combined with the third limiting portion 36 and the fourth limiting portion 37 to limit the first electrode portion 31 and the second electrode portion 32.

[0108] In a specific implementation, a first partition 161 is provided between the first mounting chamber 120 and the arc-extinguishing chamber 110, which isolates the first mounting chamber 120 from the arc-extinguishing chamber 110. Furthermore, the first partition 161 is provided with a first connecting hole 16. Both the first partition 161 and the first connecting hole 16 are jointly formed by the combination of the first housing 10 and the second housing 20. The first electrode part 31 passes through the first connecting hole 16 into the first mounting chamber 120 and connects to the first mounting member 40.

[0109] Specifically, when the first electrode part 31 is connected to the first mounting member 40, the third limiting part 36 on the first electrode part 31 combines with the hole wall of the first connecting hole 16 to form a limiting structure, so that the first electrode part 31 cannot be displaced in the third and fourth directions, so as to prevent the molten metal 30 from shifting in the third and fourth directions when connected to the external connecting wire. The third and fourth directions refer to the directions perpendicular to the first housing 10 and the second housing 20, and the third and fourth directions are opposite to each other.

[0110] Similarly, a second partition 261 is provided between the second mounting chamber 130 and the arc-extinguishing chamber 110, which isolates the second mounting chamber 130 from the arc-extinguishing chamber 110. Furthermore, the second partition 261 is provided with a second connecting hole 26, both of which are jointly formed by the combination of the first housing 10 and the second housing 20; the second electrode part 32 passes through the second connecting hole 26 into the second mounting chamber 130 and connects to the second mounting member 50.

[0111] Specifically, when the second electrode part 32 is connected to the second mounting member 50, the fourth limiting part 37 on the second electrode part 32 combines with the hole wall of the second connecting hole 26 to form a limiting structure, so that the second electrode part 32 cannot be displaced in the third and fourth directions, so as to prevent the molten metal 30 from shifting in the third and fourth directions when connected to the external connecting wire. The third and fourth directions refer to the directions perpendicular to the first housing 10 and the second housing 20, and the third and fourth directions are opposite to each other.

[0112] In one possible embodiment, the integrated photovoltaic fuse 100 further includes a stop 60 and a support 12; the support 12 is formed at the bottom of the housing after the first housing 10 and the second housing 20 are combined, and the stop 60 is disposed at the bottom of the integrated photovoltaic fuse 100, the stop 60 engaging with the combined first housing 10 and second housing 20; the stop 60 is used to cooperate with the support 12 to clamp the integrated photovoltaic fuse 100 onto a mounting slot in a photovoltaic device; When disassembly is required, the clamping space is widened by the stop 60, allowing the integrated fuse to be removed from the mounting slot.

[0113] In a specific implementation, the bottom of the first housing 10 and the second housing 20 combined forms a stop mounting part 13 and a support part 12. The stop mounting part 13 is used to install the stop member 60. After the stop mounting part 13 is fitted with the stop member 60, a clamping space is formed between the support part 12 and the stop member 60. This clamping space allows the integrated photovoltaic fuse 100 to be installed on the mounting slot of the photovoltaic equipment in the same way as existing photovoltaic fuses, so as to perfectly adapt to the existing photovoltaic system and avoid the need to modify the photovoltaic equipment due to the improvement of the photovoltaic fuse, thereby improving the versatility of the integrated photovoltaic fuse 100 in this application.

[0114] Among them, the support part 12 is a fixed structure, and the stop part 60 can move on the stop mounting part 13 due to the presence of the stop mounting part 13. When installation or disassembly is required, the size of the clamping space can be adjusted by adjusting the position between the stop part 60 and the stop mounting part 13, thereby realizing the installation and disassembly of the integrated photovoltaic fuse 100 on the mounting groove.

[0115] In one example, the first housing 10 further includes a first positioning hole 15, and the second housing 20 further includes a second positioning hole 25. When the first housing 10 and the second housing 20 are combined, they are fixed by combining the first positioning hole 15 and the second positioning hole 25. Optionally, the fixation can be achieved by a third fastener 18, which can be a rivet, screw or other fastener, and is not limited to a single type.

[0116] In one example, the first housing 10 further includes a first spacer 17, and the second housing 20 further includes a second spacer 27. The first spacer 17 and the second spacer 27 are used to maintain a corresponding spaced heat dissipation distance when multiple integrated photovoltaic fuses 100 are installed side by side, without being tightly fitted together.

[0117] This application also provides a photovoltaic device, including a photovoltaic device body, wherein the photovoltaic device body is provided with an installation groove and an integrated photovoltaic fuse 100 as described in the embodiments of this application, and the integrated photovoltaic fuse 100 is installed on the installation groove.

[0118] In specific implementation, photovoltaic equipment can be photovoltaic modules, inverters, combiner boxes, and other equipment. Any relevant equipment in a photovoltaic DC system that requires the application of photovoltaic fuses can be included within the scope of photovoltaic equipment in this embodiment. Specifically, the integrated photovoltaic fuse 100 is installed in the photovoltaic equipment via a mounting slot. The specific installation method has been described in detail in relevant embodiments of the integrated photovoltaic fuse 100 and will not be repeated here.

[0119] The above primarily describes the solutions of the embodiments of this application from the perspective of the method execution process. It is understood that, in order to achieve the above functions, mobile electronic devices include corresponding hardware structures and / or software modules for executing each function. Those skilled in the art should readily recognize that, in conjunction with the units and algorithm steps of the various examples described in the embodiments provided herein, this application can be implemented in hardware or a combination of hardware and computer software. Whether a function is executed by hardware or by computer software driving hardware depends on the specific application and design constraints of the technical solution. Those skilled in the art can use different methods to implement the described functions for each specific application, but such implementation should not be considered beyond the scope of this application.

[0120] This application embodiment can divide the electronic device into functional units according to the above method example. For example, each function can be divided into a separate functional unit, or two or more functions can be integrated into one processing unit. The integrated unit can be implemented in hardware or as a software functional unit. It should be noted that the unit division in this application embodiment is illustrative and only represents one logical functional division. In actual implementation, there may be other division methods.

[0121] Please see Figure 11 This application also provides an integrated photovoltaic fuse manufacturing apparatus 1100, comprising: The material preparation unit 1101 is used to prepare the fusible material, mounting component material, shell material and arc extinguishing medium for the integrated photovoltaic fuse. The preparation unit 1102 is used to prepare the melt raw material into a metal melt according to the first product specification; to perform injection molding on the shell raw material according to the second product specification to obtain a first shell and a second shell; and to perform stamping operation on the mounting part raw material according to the third product specification to obtain a first mounting part and a second mounting part. Assembly unit 1103 is used to assemble the arc extinguishing medium, the first housing, the second housing, the first mounting component, the second mounting component, and the molten metal to obtain an integrated photovoltaic fuse.

[0122] In one possible embodiment, the step of preparing the molten material into a metal melt according to the first product specification includes: thinning a first region of the molten material by milling to form a fusion fracture portion, thereby obtaining a first melt; forming a plurality of narrow necks 331 on the fusion fracture portion by a first punching die, thereby obtaining a second melt; forming a plurality of protrusions on the fusion fracture portion by a bending die, thereby obtaining a third melt; performing a stamping operation and a bending operation on the first end and the second end of the third melt, respectively, to form a first electrode portion and a second electrode portion, thereby obtaining a fourth melt; and performing an electroplating operation on the fourth melt to obtain the metal melt.

[0123] In one possible embodiment, the step of preparing the molten material into a molten metal according to the first product specification includes: thinning a first region of the molten material by a milling process to obtain a first molten metal; forming a plurality of narrow necks on the first molten metal using a first punching die to obtain a second molten metal; forming a plurality of protrusions on the second molten metal using a bending die to obtain a third molten metal; dividing the third molten metal along its width direction to obtain a plurality of fused portions; preparing a first electrode portion and a second electrode portion based on the molten material; and welding the two ends of the plurality of fused portions to the first electrode portion and the second electrode portion respectively to obtain the molten metal.

[0124] In one possible embodiment, the step of injection molding the shell material according to the second product specification to obtain a first shell and a second shell includes: drying the shell material to adjust the moisture content of the shell material to ≤0.03% to obtain a spare shell material; injecting the spare shell material into a multi-cavity mold and molding it using segmented temperature control to obtain the first shell and the second shell respectively; wherein the surface roughness of the mold cavity of the multi-cavity mold is Ra≤0.2μm.

[0125] In one possible embodiment, the step of stamping the mounting material according to the third product specification to obtain the first mounting part and the second mounting part includes: controlling a CNC machine tool to perform a cutting operation on the mounting material to obtain a plurality of first unfolded parts; punching the plurality of first unfolded parts with a second punching die to obtain a plurality of second unfolded parts; bending the plurality of second unfolded parts with a forming tool to obtain a first wiring component, a second wiring component, a first clamping component, and a second clamping component; assembling the first wiring component and the first clamping component to obtain the first mounting part; and assembling the second wiring component and the second clamping component to obtain the second mounting part.

[0126] In one possible embodiment, assembling the arc-extinguishing medium, the first housing, the second housing, the first mounting component, the second mounting component, and the molten metal to obtain an integrated photovoltaic fuse includes: respectively installing the first mounting component and the second mounting component in a first mounting groove and a second mounting groove of the first housing; placing the molten metal in the first arc-extinguishing groove of the first housing, and inserting the first electrode portion and the second electrode portion of the molten metal into the first wiring component and the second wiring component, respectively; installing a stop block on the stop mounting portion of the first housing; covering the first housing with the second housing and fixing it with a third fixing component to obtain the first fuse; and loading the arc-extinguishing medium into the first fuse to obtain the integrated photovoltaic fuse.

[0127] In one possible embodiment, assembling the arc-extinguishing medium, the first housing, the second housing, the first mounting component, the second mounting component, and the molten metal to obtain an integrated photovoltaic fuse includes: respectively setting the first mounting component and the second mounting component in a first mounting groove and a second mounting groove of the first housing; setting the molten metal in the first arc-extinguishing groove of the first housing, and inserting the first electrode portion and the second electrode portion of the molten metal into the first wiring component and the second wiring component, respectively; adding the arc-extinguishing medium into the first arc-extinguishing groove, and installing a stop block on the stop mounting portion of the first housing; covering the first housing with the second housing and fixing it with a third fixing component to obtain the integrated photovoltaic fuse.

[0128] In one possible embodiment, the segmented temperature control includes: setting the temperature of the front section of the barrel to 260-270°C, the temperature of the middle section to 250-260°C, the temperature of the rear section to 240-250°C, and the temperature of the nozzle to 270-280°C; during injection molding, setting the feed rate of the rapid filling stage to 70-90 mm / s, and reducing the feed rate of the holding pressure stage to 15-25 mm / s.

[0129] The above embodiments can be implemented, in whole or in part, by software, hardware, firmware, or any other combination thereof. When implemented using software, the above embodiments can be implemented, in whole or in part, as a computer program product. The computer program product includes one or more computer instructions or computer programs. When the computer instructions or computer programs are loaded or executed on a computer, all or part of the processes or functions described in the embodiments of this application are generated. The computer can be a general-purpose computer, a special-purpose computer, a computer network, or other programmable device. The computer instructions can be stored in a computer-readable storage medium or transmitted from one computer-readable storage medium to another. For example, the computer instructions can be transmitted from one website, computer, server, or data center to another website, computer, server, or data center via wired or wireless means. The computer-readable storage medium can be any available medium that a computer can access or a data storage device such as a server or data center that includes one or more sets of available media. The available medium can be a magnetic medium (e.g., floppy disk, hard disk, magnetic tape), an optical medium (e.g., DVD), or a semiconductor medium. A semiconductor medium can be a solid-state drive.

[0130] This application also provides an electronic device 1200, such as... Figure 12 As shown, it includes at least one processor 1201, a display screen 1202, and a memory 1203, and may also include a communications interface 1205 and a bus 1204. The processor 1201, display screen 1202, memory 1203, and communications interface 1205 can communicate with each other via the bus 1204. The display screen 1202 is configured to display a preset user guide interface in the initial setup mode. The communications interface 1205 can transmit information. The processor 1201 can call logical instructions in the memory 1203 to execute the methods described in the above embodiments.

[0131] Optionally, the electronic device 1200 may be a mobile electronic device, an electronic device, or other devices, and is not limited to any particular type.

[0132] Furthermore, the logic instructions in the aforementioned memory 1203 can be implemented as software functional units and, when sold or used as independent products, can be stored in a computer-readable storage medium.

[0133] The memory 1203, as a computer-readable storage medium, can be configured to store software programs, computer-executable programs, such as program instructions or modules corresponding to the methods in the embodiments of this disclosure. The processor 1201 executes functional applications and data processing by running the software programs, instructions, or modules stored in the memory 1203, thereby implementing the methods in the above embodiments.

[0134] The memory 1203 may include a program storage area and a data storage area. The program storage area may store the operating system and application programs required for at least one function; the data storage area may store data created based on the use of the electronic device 1200. Furthermore, the memory 1203 may include high-speed random access memory (RAM) and may also include non-volatile memory. For example, various media capable of storing program code, such as USB flash drives, portable hard drives, read-only memory (ROM), random access memory (RAM), magnetic disks, or optical disks, may be used, or they may be transient storage media.

[0135] This application also provides a computer storage medium storing a computer program for electronic data interchange, which causes a computer to perform some or all of the steps of any of the methods described in the above method embodiments, wherein the computer includes an electronic device.

[0136] This application also provides a computer program product, which includes a non-transitory computer-readable storage medium storing a computer program operable to cause a computer to perform some or all of the steps of any of the methods described in the above method embodiments. The computer program product may be a software installation package, and the computer may include an electronic device.

[0137] It should be understood that in the various embodiments of this application, the order of the above-mentioned processes does not imply the order of execution. The execution order of each process should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of this application.

[0138] In the several embodiments provided in this application, it should be understood that the disclosed methods, apparatuses, and systems can be implemented in other ways. For example, the apparatus embodiments described above are merely illustrative; for example, the division of units is merely a logical functional division, and other division methods may exist in actual implementation; for example, multiple units or components may be combined or integrated into another system, or some features may be ignored or not executed. Furthermore, the coupling or direct coupling or communication connection shown or discussed may be through some interfaces, and the indirect coupling or communication connection between devices or units may be electrical, mechanical, or other forms.

[0139] The units described as separate components may or may not be physically separate. The components shown as units may or may not be physical units; that is, they may be located in one place or distributed across multiple network units. Some or all of the units can be selected to achieve the purpose of this embodiment according to actual needs.

[0140] Furthermore, the functional units in the various embodiments of this application can be integrated into one processing unit, or each unit can be physically included separately, or two or more units can be integrated into one unit. The integrated unit can be implemented in hardware or in the form of hardware plus software functional units.

[0141] The integrated units implemented as software functional units described above can be stored in a computer-readable storage medium. These software functional units, stored in a storage medium, include several instructions to cause a computer device (which may be a personal computer, server, or network device, etc.) to execute some steps of the methods described in the various embodiments of this application. The aforementioned storage medium includes: a USB flash drive, a portable hard disk, a magnetic disk, an optical disk, volatile memory, or non-volatile memory. The non-volatile memory can be read-only memory (ROM), programmable read-only memory (PROM), erasable programmable read-only memory (EPROM), electrically erasable programmable read-only memory (EEPROM), or flash memory. The volatile memory can be random access memory (RAM), which is used as an external cache. By way of example, but not limitation, many forms of random access memory (RAM) are available, such as static RAM (SRAM), dynamic RAM (DRAM), synchronous DRAM (SDRAM), double data rate SDRAM (DDR SDRAM), enhanced SDRAM (ESDRAM), synchronous linked DRAM (SLDRAM), and direct rambus RAM (DR RAM), etc., which are various media capable of storing program code.

[0142] While this application discloses the above information, it is not limited thereto. Any person skilled in the art can easily conceive of variations or substitutions without departing from the spirit and scope of this application, and can make various alterations and modifications, including combinations of the different functions and implementation steps described above, as well as software and hardware implementation methods, all of which are within the protection scope of this application.

Claims

1. A method for manufacturing an integrated photovoltaic fuse, characterized in that, include: Prepare the raw materials for the fusible element, the raw materials for the mounting components, the raw materials for the casing, and the arc-extinguishing medium for the integrated photovoltaic fuse; The molten raw materials are prepared into a metal melt according to the first product specification; According to the second product specification, the shell raw materials are respectively injection molded to obtain the first shell and the second shell; According to the third product specification, the raw material of the mounting part is stamped to obtain the first mounting part and the second mounting part; The arc-extinguishing medium, the first housing, the second housing, the first mounting component, the second mounting component, and the molten metal are assembled to obtain an integrated photovoltaic fuse.

2. The method according to claim 1, characterized in that, The step of preparing the melt raw material into a metal melt according to the first product specification includes: The first melt is obtained by thinning the first region of the molten material through milling to form a melt fracture. A second melt is obtained by forming multiple narrow necks on the weld section using a first punching die; A third melt is obtained by forming multiple protrusions on the melt section using a bending die; The first and second ends of the third melt are respectively stamped and bent to form the first electrode portion and the second electrode portion, thus obtaining the fourth melt; Electroplating is performed on the fourth melt to obtain the metal melt.

3. The method according to claim 1, characterized in that, The step of preparing the melt raw material into a metal melt according to the first product specification includes: The first melt is obtained by thinning the first region of the molten material through milling. A second melt is obtained by forming multiple narrow necks on the first melt using a first punching die; By forming multiple protrusions on the second melt using a bending die, a third melt is obtained; The third melt is divided along its width to obtain multiple melt-break sections; The first and second electrode sections are prepared based on melt raw materials; The two ends of the plurality of fused portions are respectively welded to the first electrode portion and the second electrode portion to obtain the molten metal.

4. The method according to claim 1, characterized in that, The step of injection molding the shell raw materials according to the second product specifications to obtain the first shell and the second shell includes: The shell material is dried to adjust the moisture content to ≤0.03% to obtain a ready-to-use shell material; The spare shell material is injected into a multi-cavity mold and formed by segmented temperature control to obtain a first shell and a second shell respectively; wherein, the surface roughness of the mold cavity of the multi-cavity mold is Ra≤0.2μm.

5. The method according to claim 1, characterized in that, The step of stamping the raw material of the mounting component according to the third product specification to obtain the first mounting component and the second mounting component includes: The CNC machine tool is controlled to perform a cutting operation on the raw material of the mounting part to obtain multiple first unfolded parts; The plurality of first unfolded parts are punched using a second punching die to obtain a plurality of second unfolded parts; The plurality of second unfolded parts are bent using a forming tool to obtain a first wiring component, a second wiring component, a first clamping component, and a second clamping component. Assemble the first wiring component and the first clamping component to obtain the first mounting component; Assemble the second wiring component and the second clamping component to obtain the second mounting component.

6. The method according to claim 5, characterized in that, The assembly of the arc-extinguishing medium, the first housing, the second housing, the first mounting component, the second mounting component, and the molten metal to obtain an integrated photovoltaic fuse includes: The first mounting component and the second mounting component are respectively disposed in the first mounting groove and the second mounting groove of the first housing. The molten metal is placed in the first arc-extinguishing groove of the first housing, and the first electrode portion and the second electrode portion of the molten metal are respectively inserted into the first wiring component and the second wiring component; A stop block is installed on the stop mounting portion of the first housing; The second housing is placed on top of the first housing and fixed by the third fastener to obtain the first fuse; The arc-extinguishing medium is loaded into the first fuse to obtain the integrated photovoltaic fuse.

7. The method according to claim 5, characterized in that, The assembly of the arc-extinguishing medium, the first housing, the second housing, the first mounting component, the second mounting component, and the molten metal to obtain an integrated photovoltaic fuse includes: The first mounting component and the second mounting component are respectively disposed in the first mounting groove and the second mounting groove of the first housing. The molten metal is placed in the first arc-extinguishing groove of the first housing, and the first electrode portion and the second electrode portion of the molten metal are respectively inserted into the first wiring component and the second wiring component; The arc-extinguishing medium is added to the first arc-extinguishing groove, and a stop block is installed on the stop mounting part of the first housing; The second housing is placed on top of the first housing and fixed by the third fastener to obtain the integrated photovoltaic fuse.

8. The method according to claim 4, characterized in that, The segmented temperature control includes: Set the temperature of the front section of the barrel to 260-270℃, the temperature of the middle section to 250-260℃, the temperature of the rear section to 240-250℃, and the temperature of the nozzle to 270-280℃. During injection molding, the feed rate during the rapid filling stage is set to 70-90 mm / s, and the feed rate during the holding pressure stage is reduced to 15-25 mm / s.

9. An electronic device, characterized in that, The method includes a processor, a memory, a communication interface, and one or more programs, said one or more programs being stored in the memory and configured to be executed by the processor, said programs including instructions for performing the steps of the method as described in any one of claims 1-8.

10. A computer-readable storage medium, characterized in that, A computer program for electronic data interchange is stored, wherein the computer program causes a computer to execute instructions for the steps of the method as described in any one of claims 1-8.

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