Lightweight component angle bead and photovoltaic device thereof

Abstract

The invention discloses a light component angle bead and a photovoltaic device thereof, and the light component angle bead comprises a lower sheath which comprises a lower supporting plate, one surface of the lower sheath is a lower supporting surface, and the lower supporting surface is provided with a positioning part and a lower protection arm; the upper sheath comprises an upper pressing plate, one surface of the upper pressing plate is an upper pressing surface, and an upper protection arm is arranged on the upper pressing surface; and the upper sheath and the lower sheath are detachably connected to the corners of the photovoltaic module through the fastening assembly. According to the light assembly corner protector and the photovoltaic device thereof, the upper sheath and the lower sheath are detachably connected at the corner position of the photovoltaic assembly through the fastening assembly, repeated use is facilitated, and the corner protector assembly is prevented from being separated from the photovoltaic assembly by attaching the positioning piece to the inner side surface of the lower portion of the adjacent frame profile; therefore, firm connection and protection effects on the corners of the photovoltaic module are realized.

Description

Technical Field

[0001] The invention relates to the technical field of photovoltaic components, and in particular to a lightweight component corner protector and a photovoltaic device thereof. Background Art

[0002] The corner protector of photovoltaic modules is a device used to protect the corners of photovoltaic modules. It is mainly used to cover the three sides of the corners of photovoltaic modules to achieve protection and prevent the corners of photovoltaic modules from collision and friction during transportation and storage.

[0003] The photovoltaic module corner protectors in the prior art usually adopt an integrated structure. When in use, the corner protectors are aligned with the corners of the module and inserted into the corners to complete the protection of the corners of the module. Although the corners can be wrapped, the connection strength between the corner protectors and the photovoltaic module is poor, resulting in the corner protectors being easily detached from the corners of the module due to bumps and vibrations during the production, storage, transportation and installation process, making it difficult to achieve good protection for the corners of the photovoltaic module.

[0004] Therefore, it is necessary to improve the corner protectors used at the corners of photovoltaic modules in the prior art. Summary of the invention

[0005] The purpose of the present invention is to overcome the defects existing in the prior art and to provide a lightweight component corner protector and a photovoltaic device thereof which have enhanced connection strength and are convenient for disassembly.

[0006] In order to solve the above technical problems, the present invention provides a lightweight component corner protector, comprising: A lower protective sleeve, wherein the lower protective sleeve comprises a lower supporting plate, one side of which is a lower supporting surface, and a positioning piece and a broken-line lower protective arm are provided on the lower supporting surface, and the positioning piece is used to fit with the lower inner side surfaces of two adjacent frame profiles in the photovoltaic module; An upper protective sleeve, the upper protective sleeve comprising an upper pressing plate, one side of the upper pressing plate being an upper pressing surface, and a broken-line upper protective arm is arranged on the upper pressing surface; The fastening assembly, the upper sleeve and the lower sleeve are detachably connected to the corners of the photovoltaic module through the fastening assembly. In the connected state, the lower supporting surface and the upper pressing surface are arranged opposite to each other and respectively fit with the bottom surface and the top surface of the frame profile of the photovoltaic module. One of the upper arm guard and the lower arm guard and the fastening assembly are clamped between the other and the outer surfaces of two adjacent frame profiles in the photovoltaic module.

[0007] Preferably, in order to achieve covering of the corners of the photovoltaic component, in the connected state, the lower guard arm and the two adjacent frame profiles of the photovoltaic component are enclosed to form a broken line slot, and the fastening assembly and the upper guard arm are both arranged in the slot.

[0008] Preferably, in order to achieve a detachable connection between the lower cover and the upper cover at the corner of the photovoltaic module, the fastening assembly includes a lower serrated bar and an upper serrated bar respectively arranged on the lower guard arm and the upper guard arm and tightly fitted with each other, and the lower serrated bar and the upper serrated bar respectively extend in a direction parallel to the lower support plate surface and the upper pressure plate surface.

[0009] Preferably, in order to facilitate the detachable connection between the lower cover and the upper cover at the corner of the photovoltaic module, the fastening assembly includes an electromagnet and a permanent magnet, one of the electromagnet and the permanent magnet is arranged on the lower cover, and the other is arranged on the upper cover.

[0010] Preferably, in order to further facilitate the separation of the lower sheath and the upper sheath, the electromagnet is arranged on the lower sheath, and the lower sheath is also provided with energized contacts electrically connected to both ends of the electromagnet wire, and the energized contacts are used to be detachably connected to the photovoltaic component, so that when the photovoltaic component is connected and photovoltaic power generation is performed, current passes through the electromagnet wire, and the electromagnet generates magnetism that repels the permanent magnet.

[0011] In order to solve the above technical problems, the present invention further provides a photovoltaic device, comprising: A photovoltaic module, the photovoltaic module comprising a photovoltaic laminate and a frame profile, the frame profiles are sequentially connected end to end to form a closed loop frame, the circumferential inner wall of the closed loop frame is sealed to the circumferential outer edge of the photovoltaic laminate; A corner protection assembly, the corner protection assembly comprising an upper sheath and a lower sheath detachably arranged on the corner of the photovoltaic assembly through a fastening assembly; The lower jacket comprises a lower support plate, a side of the lower support plate adjacent to the upper jacket is a lower support surface that fits the bottom of the photovoltaic module frame profile, a positioning piece located inside the closed loop frame and a lower guard arm in a broken line shape and located outside the closed loop frame are provided on the lower support surface, and the positioning piece fits the inner surfaces of two adjacent frame profiles; The upper sliding sleeve comprises an upper pressing plate, a side of the upper pressing plate adjacent to the lower protective sleeve is an upper pressing surface that is attached to the top of the photovoltaic module frame profile, and a folded line upper guard arm is provided on the upper pressing surface; The lower supporting surface and the upper pressing surface are arranged opposite to each other, and one of the upper guard arm and the lower guard arm and the fastening assembly are clamped between the other and the outer surfaces of two adjacent frame profiles in the photovoltaic assembly.

[0012] Preferably, in order to achieve a detachable connection between the lower cover and the upper cover at the corner of the photovoltaic module, the lower guard arm and the two adjacent frame profiles of the photovoltaic module are enclosed to form a zigzag slot, and the fastening assembly and the upper guard arm are both arranged in the slot; the fastening assembly includes a lower serrated bar and an upper serrated bar which are respectively arranged on the lower guard arm and the upper guard arm and are tightly fitted with each other, and the lower serrated bar and the upper serrated bar extend in directions parallel to the lower support plate surface and the upper pressure plate surface, respectively.

[0013] Preferably, in order to achieve a detachable connection between the lower sheath and the upper sheath at the corner position of the photovoltaic component, the fastening assembly includes an electromagnet arranged on the lower sheath and a permanent magnet arranged on the upper sheath, and the lower sheath is also provided with a powered contact electrically connected to both ends of the electromagnet wire, and the photovoltaic component is connected to a conversion assembly, and the conversion assembly has a circuit state and an open circuit state. The photovoltaic component is electrically connected to the powered contact through the conversion assembly in the circuit state and a current with a fixed direction passes through the wire of the electromagnet, so that the electromagnet generates magnetism that repels the permanent magnet.

[0014] Preferably, in order to facilitate the quick disassembly and connection of the lower sheath and the upper sheath, the conversion assembly includes an inverter, a transformer and a switch, the transformer is electrically connected to the photovoltaic laminate through the inverter, the output end of the transformer is electrically connected to a positive contact and a negative contact, the switch includes a movable frame movable between a passage station and an open circuit station, the movable frame is provided with two conductive contacts respectively electrically connected to the two powered contacts, at the passage station, the two conductive contacts are respectively electrically connected to the positive contact and the negative contact, at the open circuit station, the two conductive contacts are separated from the positive contact and the negative contact.

[0015] Preferably, in order to ensure that the on-off assembly is normally in the open circuit position, the conversion assembly further comprises an elastic member, and the elastic member acts on the movable frame to cause the movable frame to have a tendency to move toward the open circuit position.

[0016] In summary, compared with the prior art, the lightweight component corner guard and the photovoltaic device thereof of the present invention realize the detachable connection between the upper cover and the lower cover at the corner of the photovoltaic component through the fastening assembly, which is convenient for reuse. At the same time, the positioning piece is used to fit with the lower inner surface of the adjacent frame profile to prevent the corner guard assembly from detaching from the photovoltaic component, thereby achieving a firm connection and protection effect on the corner of the photovoltaic component. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] Figure 1 2 is a schematic structural diagram of a corner protection assembly according to a first embodiment of the present invention; Figure 2 yes Figure 1 A front view of Figure 3 yes Figure 1 Explosion diagram of Figure 4 yes Figure 1 Schematic diagram of the explosion from another perspective; Figure 5 is a schematic structural diagram of a photovoltaic device based on the first embodiment; Figure 6 yes Figure 5 Explosion diagram of Figure 7 yes Figure 5 Schematic diagram of the structure of photovoltaic modules; Figure 8 yes Figure 7 Explosion diagram of Fig. 9 is a schematic structural diagram of a corner protection assembly according to a second embodiment of the present invention; Fig.10 yes Fig. 9 Explosion diagram of Fig.11 yes Fig. 9 Schematic diagram of the explosion from another perspective; Fig.12 yes Fig. 9 Schematic diagram of the explosion from another perspective; Fig.13 is a schematic structural diagram of a photovoltaic device based on the second embodiment; Fig.14 yes Fig.13 A schematic diagram of the structure from another perspective; Fig.15 yes Fig.13 Explosion diagram of Fig.16 yes Fig.15 A magnified view of part A; Fig.17 yes Fig.13 Schematic diagram of the structure of the conversion component; Fig.18 yes Fig.17 Explosion diagram of Fig.19 yes Fig.18 Schematic diagram of the explosion from another perspective; Fig. 20 yes Fig.17 The structural diagram of the middle movable frame; In the figure: 1, lower jacket; 11, lower support plate; 111, lower support surface; 12, positioning piece; 13, lower arm guard; 131, mounting port; 14, energized contact; 15, folding arm; 2, upper jacket; 21, upper pressure plate; 211, upper pressure surface; 22, upper arm guard; 3, fastening assembly; 31, lower sawtooth bar; 32, upper sawtooth bar; 33, electromagnet; 34, permanent magnet; 4, photovoltaic module; 41, photovoltaic laminate; 411, front glass; 412, front film; 413, battery layer; 414, back film; 415, back glass; 42. Frame profile; 421. First opening; 422. Second opening; 423. Wire; 424. Contact; 425. Insulating sleeve; 43. Angle code; 5. Conversion assembly; 51. Inverter; 52. Transformer; 521. Positive contact; 522. Negative contact; 53. Movable frame; 531. Rectangular frame; 532. Sliding rod; 533. Protruding plate; 54. Conductive contact; 541. Anode contact; 542. Cathode contact; 55. Elastic member; 56. Protective shell; 561. Shell; 562. Protective tube; 57. Contact connection. DETAILED DESCRIPTION

[0018] The specific implementation of the present invention is further described below in conjunction with the accompanying drawings and embodiments. The following embodiments are only used to more clearly illustrate the technical solution of the present invention, and cannot be used to limit the protection scope of the present invention.

[0019] First embodiment

[0020] like Figure 1-Figure 4 As shown, the lightweight corner protector of the first embodiment of the present invention includes: The lower jacket 1 includes a lower support plate 11, one side of which is a lower support surface 111, and a positioning member 12 and a folded line lower guard arm 13 are provided on the lower support surface 111, and the positioning member 12 is used to fit with the lower inner side surfaces of two adjacent frame profiles 42 in the photovoltaic module 4; The upper sheath 2 includes an upper pressing plate 21, one side of which is an upper pressing surface 211, and a broken-line upper guard arm 22 is provided on the upper pressing surface 211; The fastening assembly 3, the upper sleeve 2 and the lower sleeve 1 are detachably connected to the corners of the photovoltaic assembly 4 through the fastening assembly 3. In the connected state, the lower supporting surface 111 and the upper pressing surface 211 are arranged opposite to each other and respectively fit with the bottom surface and the top surface of the frame profile 42 of the photovoltaic assembly 4. One of the upper guard arm 22 and the lower guard arm 13 and the fastening assembly 3 are clamped between the other and the outer surfaces of the two adjacent frame profiles 42 in the photovoltaic assembly 4.

[0021] The corner protector of the component adopts a structure in which the lower sheath 1 and the upper sheath 2 are detachably connected to the corner position of the photovoltaic component 4 through a fastening component 3, which is convenient for reuse. In order to ensure the structural strength of the corner protector of the component while taking into account the lightweight characteristics, the lower sheath 1 and the upper sheath 2 are both made of rate material.

[0022] When in use, lay the lower jacket 1 flat so that the top surface of the lower support plate 11 in the lower jacket 1, that is, the lower support surface 111, faces upward, and then put the photovoltaic module 4 in so that the inner side surfaces of the lower parts of the two adjacent frame profiles 42 of the photovoltaic module 4 (the combination of the lower inner surfaces of the two adjacent frame profiles 42 forms a surface whose horizontal plane projection is L-shaped) fit with the positioning piece 12, and at the same time, the bottom surface of the frame profile 42 fits with the lower support surface 111, and the lower guard arm 13 is located on the outside of the above-mentioned two frame profiles 42. Put the upper jacket 2 directly above the lower jacket 1. When placing it, the upper pressure surface 211 of the upper pressure plate 21 of the upper jacket 2 fits downward on the top surface of the frame profile 42, and the upper guard arm 22 is located On the outside of the two frame profiles 42, the lower arm guard 13 and the upper arm guard 22 are detachably connected by the fastening assembly 3 to cover the corners of the photovoltaic module 4. The lower supporting surface 111 and the upper pressing surface 211 are respectively fitted with the bottom and top surfaces of the frame profile 42 of the photovoltaic module 4 to prevent the component corner guard from shaking up and down, and the positioning piece 12 is used to fit the lower inner surfaces of the two frame profiles 42 to prevent the component corner guard from shifting, thereby ensuring the connection firmness between the component corner guard and the photovoltaic module 4 and preventing the component corner guard from detaching from the corner of the photovoltaic module 4. When the photovoltaic module 4 needs to be installed, the lower cover 1 is separated from the upper cover 2 by the fastening assembly 3, and the component corner guard can be removed, which is convenient for installing the photovoltaic module 4.

[0023] In this embodiment, the structure of the positioning member 12 is an isosceles right-angled triangular prism, the lower arm guard 13 and the upper arm guard 22 are both L-shaped, the length directions of the two side walls of the lower arm guard 13 are perpendicular, and the length directions of the two side walls of the upper arm guard 22 are perpendicular. This is mainly designed based on the fact that the corners of the photovoltaic module 4 in the prior art are usually right-angled, that is, the length directions of the two adjacent frame profiles 42 in the photovoltaic module 4 in the prior art are perpendicular to each other. Of course, according to the different shapes of the photovoltaic module 4, the corresponding corner shape of the photovoltaic module 4 will also change accordingly. Therefore, the shapes of the positioning member 12, the lower arm guard 13 and the upper arm guard 22 of the present invention also need to change with the corner shape of the photovoltaic module 4, and are not limited to the shapes described above in this embodiment.

[0024] A further improvement is that, in the connected state, the lower guard arm 13 and the two frame profiles 42 adjacent to the photovoltaic component 4 enclose a broken line-shaped slot, and the fastening component 3 and the upper guard arm 22 are both arranged in the slot.

[0025] Specifically, after the lower sleeve 1 is docked with the corner of the photovoltaic component 4, so that the positioning piece 12 is in contact with the inner surfaces of the two adjacent frame profiles 42 at the corresponding corners of the photovoltaic component 4, the L-shaped lower arm guard 13 and the frame profile 42 are enclosed to form an L-shaped slot, which is convenient for subsequent assembly. The upper arm guard 22 is inserted into the L-shaped slot so that the inner surface of the upper arm guard 22 is in contact with the outer surfaces of the above-mentioned two frame profiles 42, and the upper arm guard 22 and the lower arm guard 13 are firmly connected by the fastening component 3, and the positioning piece 12 is fitted with the inner surfaces of the two frame profiles 42, thereby achieving the technical effect of firmly connecting the component corner guard and the corner of the photovoltaic component 4 to prevent detachment.

[0026] A further improvement is that the fastening assembly 3 includes a lower serrated bar 31 and an upper serrated bar 32 which are respectively arranged on the lower guard arm 13 and the upper guard arm 22 and fit tightly with each other, and the lower serrated bar 31 and the upper serrated bar 32 extend in directions parallel to the surface of the lower support plate 11 and the surface of the upper pressure plate 21 respectively.

[0027] The fastening assembly 3 is divided into two parts, a lower serrated bar 31 and an upper serrated bar 32, wherein the lower serrated bar 31 is arranged on the inner wall of the lower guard arm 13. Specifically, two groups of lower serrated bars 31 are arranged respectively on the two side walls of the lower guard arm 13 adjacent to the positioning member 12, extending along the length direction of the side wall and spaced apart along the height direction of the side wall. Correspondingly, two groups of upper serrated bars 32 are also arranged respectively on the outer surfaces of the two side walls of the upper guard arm 22, extending along the length direction of the side wall and spaced apart along the height direction of the side wall.

[0028] After adopting the above structure, after the corners of the lower sheath 1 and the photovoltaic component 4 are positioned and connected by the positioning piece 12, the lower guard arm 13 of the lower sheath 1 and the two frame profiles 42 corresponding to the corner positions of the photovoltaic component 4 are enclosed to form an L-shaped slot, and the upper guard arm 22 of the upper sheath 2 is inserted into the slot, and the lower serrated bar 31 and the upper serrated bar 32 are used to fit each other, so as to realize the connection between the lower guard arm 13 and the upper guard arm 22 at the corner position of the photovoltaic component 4, and the positioning piece 12 is fitted and connected with the inner surfaces of the two frame profiles 42, so as to realize the firm connection between the lower sheath 1 and the upper sheath 2 at the corner position of the photovoltaic component 4, and at the same time, the lower guard arm 13 of the lower sheath 1 and the upper guard arm 22 of the upper sheath 2 can cover the outer surface of the connected position of the frame profile 42, and the upper pressure surface 211 and the lower support surface 111 are respectively covered on the top and bottom surfaces of the frame profile 42, so as to realize the comprehensive covering of the corner position of the photovoltaic component 4 by the component corner guard, and enhance the corner protection effect.

[0029] The lower sheath 1 and the upper sheath 2 are both made of elastic plastic. When the two are connected at the corner of the photovoltaic module 4 through the lower sawtooth bar 31 and the upper sawtooth bar 32, the two are firmly connected to protect the corner of the photovoltaic module 4 without external force. When the photovoltaic module 4 needs to be laid, the lower arm 13 of the lower sheath 1 is bent outward, and the upper sawtooth bar 32 and the upper arm 22 are conveniently moved upward through deformation, so that the upper sheath 2 is separated from the lower sheath 1, and the module corner guard can be separated at the corner of the photovoltaic module 4.

[0030] Based on the lightweight component corner guard of this embodiment, the present invention also discloses a photovoltaic device, such as Figure 5-Figure 8 As shown, including: Photovoltaic module 4, photovoltaic module 4 comprises photovoltaic laminate 41 and frame profile 42, frame profile 42 is connected end to end in sequence to form a closed loop frame, circumferential inner wall of the closed loop frame is sealed to circumferential outer edge of photovoltaic laminate 41; A corner protection assembly, the corner protection assembly comprises an upper sheath 2 and a lower sheath 1 which are detachably arranged at the corner of a photovoltaic assembly 4 through a fastening assembly 3; The lower jacket 1 includes a lower support plate 11, and a side of the lower support plate 11 adjacent to the upper jacket 2 is a lower support surface 111 that fits the bottom of the frame profile 42 of the photovoltaic module 4. The lower support surface 111 is provided with a positioning member 12 located inside the closed loop frame and a lower guard arm 13 in a broken line shape and located outside the closed loop frame. The positioning member 12 fits the inner surface of two adjacent frame profiles 42; The upper sliding sleeve includes an upper pressing plate 21, and a side of the upper pressing plate 21 adjacent to the lower sheath 1 is an upper pressing surface 211 that fits on the top of the frame profile 42 of the photovoltaic module 4, and a broken line upper guard arm 22 is provided on the upper pressing surface 211; The lower support surface 111 and the upper pressure surface 211 are arranged opposite to each other, and one of the upper guard arm 22 and the lower guard arm 13 and the fastening assembly 3 are sandwiched between the other and the outer surfaces of two adjacent frame profiles 42 in the photovoltaic assembly 4; The lower guard arm 13 and the two frame profiles 42 adjacent to the photovoltaic component 4 enclose a broken line-shaped slot, in which the fastening assembly 3 and the upper guard arm 22 are both arranged; the fastening assembly 3 includes a lower serrated bar 31 and an upper serrated bar 32 which are respectively arranged on the lower guard arm 13 and the upper guard arm 22 and fit tightly with each other, and the lower serrated bar 31 and the upper serrated bar 32 extend in directions parallel to the surface of the lower support plate 11 and the surface of the upper pressure plate 21, respectively.

[0031] In the photovoltaic device of this embodiment, the photovoltaic laminate 41 is a rectangular plate structure, including a front glass 411, a front adhesive film 412, a battery layer 413, a back adhesive film 414 and a back glass 415 which are stacked and connected in sequence from top to bottom. Four frame profiles 42 are provided, which are connected end to end in sequence to form a closed-loop frame as a rectangular frame. The circumferential inner wall of the rectangular frame is sealed to the circumferential outer edge of the photovoltaic laminate 41, and two adjacent frame profiles 42 are connected by a corner code 43.

[0032] After the photovoltaic component 4 is assembled and formed using the above structure, corner guard assemblies are installed at the four corners of the photovoltaic component 4. Specifically, the lower cover 1 is installed below the four corners of the photovoltaic component 4, so that the positioning pieces 12 on the lower supporting surface 111 of the lower supporting plate 11 are respectively fitted with the inner surfaces of the two frame profiles 42 of the photovoltaic component 4, and after the lower supporting surface 111 is fitted with the bottom surface of the frame profile 42, the lower guard arm 13 and the outer surfaces of the two adjacent frame profiles 42 are enclosed to form an L-shaped slot, the upper pressure surface 211 on the upper pressure plate 21 of the upper cover 2 is facing downward, and the upper guard arm 22 is inserted into the slot, so that the lower serration bar 31 and the upper serration bar 32 are clamped with each other, and the corner guard assembly can be firmly connected to the corner position of the photovoltaic component 4. In the connected state, the upper pressure surface 211 is in contact with the top surface of the frame profile 42, and the lower support surface 111 is in contact with the bottom surface of the frame profile 42, thereby preventing the component corner guard from being relatively cheap with the photovoltaic component 4 in the height direction. In the horizontal direction, the positioning piece 12 is in contact with the lower inner surface of the two adjacent frame profiles 42, while the outer surfaces of the two adjacent frame profiles 42 are in contact with the upper guard arm 22, and the lower guard arm 13 is used to clamp the fastening component 3 and the upper guard arm 22, thereby preventing the component corner guard from detaching from the corner of the photovoltaic component 4, ensuring the firm connection between the component corner guard and the photovoltaic component 4, thereby achieving a good corner protection effect.

[0033] When the photovoltaic module 4 is needed for installation, the two side walls of the lower arm guard 13 are bent outward to separate the upper serration bar 32 and the lower serration bar 31 from each other, and the upper arm guard 22 can be removed from the slot to separate the upper arm guard 22 from the lower arm guard 13, thereby facilitating the separation of the corner guard and the corner of the photovoltaic module 4 and facilitating the installation of the photovoltaic module 4.

[0034] Second embodiment

[0035] like Figure 9-12 As shown, the lightweight component corner guard of the second embodiment of the present invention is based on the first embodiment, and the difference is that the fastening component 3 includes an electromagnet 33 and a permanent magnet 34, one of the electromagnet 33 and the permanent magnet 34 is arranged on the lower sleeve 1, and the other is arranged on the upper sleeve 2.

[0036] Compared with the first embodiment, the fastening assembly 3 of this embodiment can conveniently realize the quick disassembly connection between the upper sleeve 2 and the lower sleeve 1 through the electromagnet 33 and the permanent magnet 34. Specifically, the electromagnet 33 includes an iron core made of magnetic conductive material and a wire wound around the outer circumference of the iron core. When there is no electricity inside the wire, the permanent magnet 34 can attract the iron core, so that the permanent magnet 34 and the un-energized electromagnet 33 attract each other, and then attract the lower sleeve 1 and the upper sleeve 2 to each other, so that the lower sleeve 1 and the upper sleeve 2 are combined at the corner of the photovoltaic component 4 to form a corner protection component for protecting it; when current is passed through the wire of the electromagnet 33, so that the electromagnet 33 generates magnetism that repels the permanent magnet 34, the upper sleeve 2 can be quickly disassembled and separated from the lower sleeve 1, without the need to pressurize and deform the lower guard arm 13, and the operation is more convenient and labor-saving.

[0037] A further improvement is that the electromagnet 33 is arranged on the lower sheath 1, and the lower sheath 1 is also provided with a power contact 14 electrically connected to the two ends of the electromagnet 33 wire. The power contact 14 is used to be detachably connected to the photovoltaic component 4, so that when the connection is in the connected state and the photovoltaic component 4 generates photovoltaic power, the wire of the electromagnet 33 passes the current, and the electromagnet 33 generates magnetism that repels the permanent magnet 34.

[0038] Specifically, the lower sleeve 1 also includes an L-shaped folding arm 15, which is fixed on the lower supporting surface 111, and the outer wall of the folding arm 15 is integrally connected to the inner wall of the lower guard arm 13. The side of the folding arm 15 facing away from the lower supporting surface 111 is provided with first mounting holes spaced apart along its length direction, and the electromagnet 33 is adapted to and corresponds to the first mounting hole one by one, and the electromagnet 33 is arranged in the first mounting hole; two mounting openings 131 are provided on the adjacent surfaces of the positioning member 12 and the lower guard arm 13, and the two mounting openings 131 are respectively fixed with power contacts 14, and the two power contacts 14 are electrically connected to the two ends of the electromagnet 33 wire; one side of the upper guard arm 22 adjacent to the lower sleeve 1 is provided with second mounting holes spaced apart along the length direction of the upper guard arm 22, and the second mounting holes correspond to the first mounting holes one by one, and a permanent magnet 34 adapted to it is fixed in the second mounting hole.

[0039] After adopting the above structure, after the lower sheath 1 is connected to the photovoltaic component 4, the photovoltaic component 4 is electrically connected to the power-on contact 14, so that power can be supplied to the electromagnet 33 through the photovoltaic component 4. Specifically, when it is necessary to cover and protect the corner of the photovoltaic component 4, the photovoltaic component 4 does not supply power to the electromagnet 33, and the permanent magnet 34 attracts the electromagnet 33, so that the lower sheath 1 and the upper sheath 2 are firmly connected to cover the corner of the photovoltaic component 4; and when the photovoltaic component 4 is installed, since the photovoltaic component 4 is usually installed on a sunny day, the photovoltaic component 4 can generate electrical energy, and a current of a fixed direction passes through the wire of the electromagnet 33 through the power-on contact 14, and the electromagnet 33 generates magnetism that repels the permanent magnet 34, so that the lower sheath 1 can be separated from the upper sheath 2 without manual operation on the lower sheath 1 and the upper sheath 2, thereby making the disassembly of the corner protection component and the corner of the photovoltaic component 4 more convenient and quick.

[0040] Based on the lightweight corner protector of the above embodiment, the present invention further discloses a photovoltaic device. Compared with the photovoltaic device based on the corner protector of the first embodiment, the photovoltaic device disclosed in this embodiment is as follows: Figure 13-Figure 20 As shown, the difference lies in that the electromagnet 33 on the lower sheath 1 and the permanent magnet 34 arranged on the upper sheath 2, the lower sheath 1 is also provided with a power-on contact 14 electrically connected to the two ends of the electromagnet 33 wire, the photovoltaic component 4 is connected to the conversion component 5, the conversion component 5 has a circuit state and an open circuit state, the photovoltaic component 4 is electrically connected to the power-on contact 14 through the conversion component 5 in the circuit state and a current with a fixed direction passes through the wire of the electromagnet 33, so that the electromagnet 33 generates a magnetic force that repels the permanent magnet 34.

[0041] During the specific operation, the conversion component 5 is adjusted to the open circuit state, and the lower sheath 1 is installed at the corner of the photovoltaic component 4, so that the photovoltaic component 4 cannot supply power to the electromagnet 33, and then the upper arm 22 is inserted into the slot, and the lower sheath 1 and the upper sheath 2 are firmly installed at the corner of the photovoltaic component 4 through the permanent magnet 34 and the electromagnet 33 that are magnetically attracted to each other, so as to cover and protect the corner of the photovoltaic component 4; when the corner protection component needs to be removed, the conversion component 5 is adjusted to the passage state, and the photovoltaic component 4 is placed under sunlight, so that the photovoltaic component 4 can generate photovoltaic power, and the current is transmitted to the energized contact 14 through the conversion component 5 in the passage state, so that after the current with a fixed direction passes through the wire of the electromagnet 33, the electromagnet 33 generates magnetism that repels the permanent magnet 34, and then the lower sheath 1 and the upper sheath 2 repel each other and separate from the corner position of the photovoltaic component 4.

[0042] A further improvement is that the conversion component 5 includes an inverter 51, a transformer 52 and a switch, the transformer 52 is electrically connected to the photovoltaic laminate 41 through the inverter 51, the output end of the transformer 52 is electrically connected to the positive contact 521 and the negative contact 522, the switch includes a movable frame 53 that moves between the passage station and the open circuit station, and the movable frame 53 is provided with two conductive contacts 54 that are respectively electrically connected to the two power contacts 14, in the passage station, the two conductive contacts 54 are respectively electrically connected to the positive contact 521 and the negative contact 522, in the open circuit station, the two conductive contacts 54 are separated from the positive contact 521 and the negative contact 522; the conversion component 5 also includes an elastic member 55, the elastic member 55 acts on the movable frame 53, so that the movable frame 53 has a tendency to move toward the open circuit station.

[0043] Specifically, the conversion assembly 5 also includes a protective shell 56, which includes a barrel-shaped shell 561. The top of the shell 561 is fixed below the rear glass 415. Two protective tubes 562 are provided on the four sides of the shell 561. The protective tubes 562 are fixed between the frame profile 42 and the shell 561. The transformer 52 and the inverter 51 are both fixed in the shell 561. The two sides of the transformer 52 are respectively fixed with a downward positive contact 521 and a negative contact 522. The movable frame 53 includes a rectangular frame 53 that slides along the photovoltaic laminate 41 in the shell 561. 1. The bottom of the rectangular frame 531 is fixedly connected with a convex plate 533 through a sliding rod 532. The convex plate 533 is located below the shell 561. The sliding rod 532 slides through the bottom of the shell 561. The elastic member 55 is a compression spring and is provided with four of them. They are respectively located at the four corners of the rectangular frame 531, and the two ends are respectively connected to the top surface of the rectangular frame 531 and the back glass 415. Two conductive contacts 54 are respectively provided on the inner walls on both sides of the rectangular frame 531 and are located directly below the positive contact 521 and the negative contact 522. One of them is square and the other is circular.

[0044] An anode contact 541 and a cathode contact 542 are disposed on each of the four side walls of the rectangular frame 531 . A wire is built into the rectangular frame 531 , so that the anode contact 541 is electrically connected to the square positive contact 521 , and the cathode contact 542 is electrically connected to the circular negative contact 522 .

[0045] The inner surface of the frame profile 42 is provided with two first openings 421 and two second openings 422 which are connected to its own cavity, and an insulating sleeve 425 is fixed on the inner wall of the first opening 421 and the second opening 422, and a contact 424 is fixed inside the insulating sleeve 425. The two contact pieces 424 are electrically connected through an electric wire 423, and the electric wire 423 is located in the cavity of the frame profile 42; a contact connection line 57 is provided on the inner side of the protective tube 562, and both ends of the contact connection line 57 are electrically connected to one of the contact pieces 424 and the anode contact 541 or the cathode contact 542, and the other is used to be electrically connected to one of the energized contacts 14 on the lower sleeve 1.

[0046] After adopting the above structure, when no external force is applied, the rectangular frame 531 is fitted to the inner bottom wall of the shell 561 through the compression spring, the movable frame 53 is in the open circuit position, and the two conductive contacts 54 on the rectangular frame 531 are spaced apart from the positive contact 521 and the negative contact 522 of the transformer 52, so that the power-on contact 14 cannot be powered. At this time, the lower sheath 1 is installed at the corner position of the photovoltaic component 4, so that the two power-on contacts 14 on the positioning piece 12 of the lower sheath 1 are respectively fitted and connected to the two contact pieces 424 adjacent to the corners of the photovoltaic component 4, and then the upper sheath 2 is installed, and the upper sheath 2 and the lower sheath 1 are firmly adsorbed at the corner positions of the photovoltaic component 4 through the electromagnet 33 and the permanent magnet 34.

[0047] When the photovoltaic module 4 is installed outdoors, the front glass 411 of the photovoltaic module 4 faces upward, so that the photovoltaic module 4 can generate photovoltaic power. The convex plate 533 is pressed upward, so that the two conductive contacts 54 on the rectangular frame 531 are respectively in contact with the positive contact 521 and the negative contact 522 of the transformer 52. At this time, the movable frame 53 is in the passage position, and the corresponding conversion component 5 is in the passage state. The inverter 51 and the transformer 52 convert the current generated by the photovoltaic power generation of the photovoltaic laminate 41 into a current in a fixed direction, which passes through the anode contact 541 / cathode contact 542, the contact connection line 57, one of the contact pieces 424, the wire 423, and the other contact piece 424 in sequence, and is transmitted to the wire of the electromagnet 33 through the energized contact 14. After the wire of the electromagnet 33 passes the current in a fixed direction, the electromagnet 33 generates magnetism, which repels the permanent magnet 34, and separates the lower sheath 1 and the upper sheath 2 at the four corners of the photovoltaic module 4 at one time, which is convenient and quick to operate. After separation, the action on the convex plate 533 is removed, and under the action of the elastic member 55, the rectangular frame 531 moves downward, and the movable frame 53 is in the open circuit position. At this time, the conversion assembly 5 is in the open circuit state.

[0048] The above is only a preferred embodiment of the present invention. It should be pointed out that for ordinary technicians in this technical field, several improvements and modifications can be made without departing from the technical principles of the present invention. These improvements and modifications should also be regarded as the scope of protection of the present invention.

Claims

1. A lightweight component corner protector, characterized in that: include: A lower protective cover (1), the lower protective cover (1) comprising a lower supporting plate (11), one side of the lower supporting plate (11) being a lower supporting surface (111), a positioning piece (12) and a broken-line lower protective arm (13) being provided on the lower supporting surface (111), the positioning piece (12) being used to fit with the lower inner side surfaces of two adjacent frame profiles (42) in the photovoltaic module (4); An upper protective sleeve (2), the upper protective sleeve (2) comprising an upper pressing plate (21), one side of the upper pressing plate (21) being an upper pressing surface (211), and a broken-line-shaped upper protective arm (22) being provided on the upper pressing surface (211); A fastening assembly (3), wherein the upper sleeve (2) and the lower sleeve (1) are detachably connected to the corners of the photovoltaic assembly (4) via the fastening assembly (3); in a connected state, the lower supporting surface (111) and the upper pressing surface (211) are arranged opposite to each other and respectively fit with the bottom surface and the top surface of the frame profile (42) of the photovoltaic assembly (4); and one of the upper arm guard (22) and the lower arm guard (13) and the fastening assembly (3) are sandwiched between the other and the outer surfaces of two adjacent frame profiles (42) in the photovoltaic assembly (4).

2. The lightweight component corner protector according to claim 1, characterized in that: In the connected state, the lower guard arm (13) and two frame profiles (42) adjacent to the photovoltaic assembly (4) enclose a broken-line slot, and the fastening assembly (3) and the upper guard arm (22) are both arranged in the slot.

3. The lightweight corner protector according to claim 2, characterized in that: The fastening assembly (3) comprises a lower sawtooth bar (31) and an upper sawtooth bar (32) which are respectively arranged on the lower guard arm (13) and the upper guard arm (22) and are tightly fitted with each other, and the lower sawtooth bar (31) and the upper sawtooth bar (32) respectively extend in a direction parallel to the plate surface of the lower support plate (11) and the plate surface of the upper pressure plate (21).

4. The lightweight component corner protector according to claim 2, characterized in that: The fastening assembly (3) comprises an electromagnet (33) and a permanent magnet (34); one of the electromagnet (33) and the permanent magnet (34) is arranged on the lower sleeve (1), and the other is arranged on the upper sleeve (2).

5. The lightweight component corner protector according to claim 4, characterized in that: The electromagnet (33) is arranged on the lower jacket (1), and the lower jacket (1) is also provided with an energized contact (14) electrically connected to both ends of the lead of the electromagnet (33). The energized contact (14) is used to be detachably connected to the photovoltaic assembly (4), so that when the photovoltaic assembly (4) is in a connected state and photovoltaic power generation is performed, current passes through the lead of the electromagnet (33), and the electromagnet (33) generates magnetism that repels the permanent magnet (34).

6. A photovoltaic device, characterized in that: include: A photovoltaic module (4), the photovoltaic module (4) comprising a photovoltaic laminate (41) and a frame profile (42), the frame profiles (42) being connected end to end in sequence to form a closed loop frame, the circumferential inner wall of the closed loop frame being sealed to the circumferential outer edge of the photovoltaic laminate (41); A corner protection assembly, the corner protection assembly comprising an upper protective cover (2) and a lower protective cover (1) which are detachably arranged on the corner of the photovoltaic assembly (4) via a fastening assembly (3); The lower jacket (1) comprises a lower support plate (11), a surface of the lower support plate (11) adjacent to the upper jacket (2) being a lower support surface (111) that fits the bottom of the frame profile (42) of the photovoltaic module (4), the lower support surface (111) being provided with a positioning piece (12) located inside the closed-loop frame and a lower guard arm (13) in a broken line shape and located outside the closed-loop frame, the positioning piece (12) being in contact with the inner surfaces of two adjacent frame profiles (42); The upper sliding sleeve comprises an upper pressing plate (21), a surface of the upper pressing plate (21) adjacent to the lower protective sleeve (1) being an upper pressing surface (211) affixed to the top of the frame profile (42) of the photovoltaic module (4), and a folded-line upper protective arm (22) being provided on the upper pressing surface (211); The lower supporting surface (111) and the upper pressing surface (211) are arranged opposite to each other, and one of the upper guard arm (22) and the lower guard arm (13) and the fastening assembly (3) are sandwiched between the other and the outer surfaces of two adjacent frame profiles (42) in the photovoltaic assembly (4).

7. The photovoltaic device according to claim 6, characterized in that: The lower guard arm (13) and two frame profiles (42) adjacent to the photovoltaic assembly (4) enclose a broken line slot, and the fastening assembly (3) and the upper guard arm (22) are both arranged in the slot; the fastening assembly (3) comprises a lower sawtooth bar (31) and an upper sawtooth bar (32) which are respectively arranged on the lower guard arm (13) and the upper guard arm (22) and are tightly fitted with each other, and the lower sawtooth bar (31) and the upper sawtooth bar (32) extend in a direction parallel to the plate surface of the lower support plate (11) and the plate surface of the upper pressure plate (21), respectively.

8. The photovoltaic device according to claim 7, characterized in that: The fastening assembly (3) comprises an electromagnet (33) arranged on the lower sleeve (1) and a permanent magnet (34) arranged on the upper sleeve (2); the lower sleeve (1) is also provided with an energized contact (14) electrically connected to both ends of a wire of the electromagnet (33); the photovoltaic assembly (4) is connected to a conversion assembly (5); the conversion assembly (5) has a circuit state and an open circuit state; the photovoltaic assembly (4) is electrically connected to the energized contact (14) through the conversion assembly (5) in the circuit state and a current with a fixed direction passes through the wire of the electromagnet (33), so that the electromagnet (33) generates a magnetic force that repels the permanent magnet (34).

9. The photovoltaic device according to claim 8, characterized in that: The conversion assembly (5) comprises an inverter (51), a transformer (52) and a switch. The transformer (52) is electrically connected to the photovoltaic laminate (41) via the inverter (51). The output end of the transformer (52) is electrically connected to a positive contact (521) and a negative contact (522). The switch comprises a movable frame (53) movable between a passage station and an open circuit station. Two conductive contacts (54) are provided on the movable frame (53) and are respectively electrically connected to two energized contacts (14). In the passage station, the two conductive contacts (54) are respectively electrically connected to the positive contact (521) and the negative contact (522). In the open circuit station, the two conductive contacts (54) are separated from the positive contact (521) and the negative contact (522).

10. The photovoltaic device according to claim 9, characterized in that: The conversion assembly (5) further comprises an elastic member (55), wherein the elastic member (55) acts on the movable frame (53) to cause the movable frame (53) to have a tendency to move towards the circuit opening station.

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