Ceramic protective cover for photovoltaic connector

Abstract

The utility model discloses a ceramic protective cover for a photovoltaic connector, which comprises a pair of cover bodies made of ceramic materials, each cover body comprises a wrapping piece and a sealing plate, a wrapping cavity used for wrapping the photovoltaic connector is formed after the wrapping pieces abut against each other, and the sealing plates are respectively arranged on the wrapping pieces. The wrapping pieces are arranged in the wrapping cavity and located at the two opposite ends of the wrapping cavity to partially block the wrapping cavity, and the outer side walls of the pair of wrapping pieces are sleeved with the at least one tightening piece. According to the utility model, the pair of cover bodies abut against each other and are buckled on the outer side of the photovoltaic connector and then are bundled by the tightening piece to complete installation, the installation is convenient, the normal use of the photovoltaic connector is not influenced in the installation process, and the conditions of electric leakage, combustion and the like can be limited in the wrapping cavity through the protection effect of the cover bodies; and the damage to other parts (such as a photovoltaic panel) caused by diffusion is avoided.

Description

Technical Field

[0001] This utility model relates to the technical field of protective devices made of ceramic materials, and in particular to a ceramic protective cover for photovoltaic connectors. Background Technology

[0002] In existing photovoltaic power generation systems, photovoltaic modules are connected in series via photovoltaic connectors. These connectors are typically placed directly on the roof corrugated steel sheets or on the support rails without any outer protection. As the years of use increase, they may experience aging, poor contact, or melting due to DC arcing, leading to the burnout of the photovoltaic connectors, photovoltaic modules, and even larger areas.

[0003] To avoid the aforementioned issues, existing technologies, such as the fire protection device for photovoltaic power generation system connectors with application number 201821068682.X, disclose a fire-resistant and high-temperature resistant ceramic protective tube sleeved over the fire-resistant and high-temperature resistant ceramic protective tube, which improves the safety and reliability of the DC side electrical connection point of the photovoltaic power generation system and reduces potential safety hazards. However, this requires the fire-resistant and high-temperature resistant ceramic protective tube to be installed with the photovoltaic connector before it is placed in the photovoltaic power generation system. This is not applicable to photovoltaic connectors that are already connected to the photovoltaic system and may be subject to aging or other risks. Furthermore, the fire-resistant and high-temperature resistant ceramic protective tube cannot be reinstalled after the photovoltaic connector is removed, thus affecting the normal operation of the photovoltaic system. Another example is a protection device for photovoltaic connectors with application number 202121103135.2, which discloses a method of wrapping and protecting the photovoltaic connector by connecting the upper and lower protective covers. This method can be applied to photovoltaic connectors in use, but its structure is relatively complex and not easy to process. Utility Model Content

[0004] The purpose of this utility model is to provide a ceramic protective cover for a photovoltaic connector. A pair of covers are abutted and fastened to the outside of the photovoltaic connector and then bundled together by a fastening device to complete the installation. The installation is convenient and does not affect the normal use of the photovoltaic connector. Moreover, the protective function of the cover can limit leakage, combustion and other situations to the enclosed cavity, and prevent them from spreading and causing damage to other components (such as photovoltaic panels).

[0005] To achieve the above objectives, the technical solution adopted by this utility model is: a ceramic protective cover for photovoltaic connectors, comprising:

[0006] A pair of ceramic housings, each housing including a wrapping element and a sealing plate, wherein the pair of wrapping elements abut against each other to form a wrapping cavity for wrapping a photovoltaic connector, and at least one pair of sealing plates are respectively disposed on the pair of wrapping elements and located at opposite ends of the wrapping cavity for partially sealing the wrapping cavity.

[0007] At least one fastening element is fitted onto the outer wall of the pair of said packages.

[0008] As a further optimization, the package is provided with a package groove, one side of which has an opening and the other side is provided with a sealing plate. A pair of packages abut against each other to connect the pair of package grooves to form the package cavity.

[0009] As a further optimization, the projection of the sealing plate along the central axis of the wrapping groove is located within or coincides with the projection of the wrapping groove along its central axis.

[0010] As a further optimization, the package is provided with a package groove, and two sealing plates are provided on both sides of the package groove. The projection of the sealing plate along the central axis of the package groove is located within or coincides with the projection of the package groove along the central axis. The sealing plate is provided with a clearance perforation that penetrates its body and communicates with the package groove.

[0011] As a further optimization, the package is provided with a sealing strip and a sealing groove on both sides for abutting with another package. When a pair of packages abut, the sealing strip is embedded in the sealing groove. Both the sealing strip and the sealing groove pass through the package along the central axis of the package groove.

[0012] As a further optimization, a groove is provided on the side wall of the package on the side away from the package cavity, and the fastening member is disposed in the groove, which can prevent the fastening member from shifting position on the cover.

[0013] As a further optimization, a support block is provided on the side wall of the package away from the package cavity, and the support block is provided with an insertion port that penetrates its body, through which the fastening member passes.

[0014] As a further optimization, the side of the package that abuts against another package is provided with a protrusion and a groove. When a pair of packages abut against each other, the protrusion on one package is embedded in the groove on the other package, which can prevent the pair of covers from sliding in the left-right and front-back directions and ensure the stability of the position of the pair of covers.

[0015] As a further optimization, the protrusion and the groove are connected to form a wave shape.

[0016] As a further optimization, the cross-section of the package cavity is circular, elliptical, or polygonal; the outer contour cross-section of a pair of package components after they abut each other is circular, elliptical, or polygonal.

[0017] As a further optimization, the cover is a one-piece molded structure, with the ceramic material being integrally formed by extrusion using a mold.

[0018] As a further optimization, the cover is made of talc ceramic, which has better insulation, is lighter, and has lower material costs.

[0019] Compared with the prior art, the present invention has the following beneficial effects:

[0020] 1. After the two covers are abutted and fastened to the outside of the photovoltaic connector, the installation is completed by binding with fasteners. There is no need to disassemble the photovoltaic connector, which is convenient for installation and does not affect the normal use of the photovoltaic connector.

[0021] 2. The protective function of the enclosure can confine leakage, combustion, and other situations within the enclosed cavity, thereby preventing them from spreading and causing damage to other components (such as photovoltaic panels);

[0022] 3. By using grooves to limit the positioning of the fasteners and by matching the protrusions and grooves to prevent slippage between the covers, the stability of the ceramic protective cover installed on the photovoltaic connector can be guaranteed. Attached Figure Description

[0023] Figure 1 This is a structural diagram of the present invention.

[0024] Figure 2 This is a schematic diagram of the assembly of a pair of covers according to the present invention.

[0025] Figure 3 This is a schematic diagram illustrating the application of this utility model.

[0026] Figure 4 This is a structural diagram of another embodiment of the cover of this utility model.

[0027] Figure 5 This is a structural diagram of another embodiment of the cover of this utility model.

[0028] Figure 6 This is a structural diagram of another embodiment of the cover of this utility model.

[0029] Figure 7 This is a side view of another embodiment of the cover of this utility model.

[0030] Figure 8 This is a structural diagram of another embodiment of the present invention. Detailed Implementation

[0031] The following are specific embodiments of the present invention, which are described in conjunction with the accompanying drawings. However, the present invention is not limited to these embodiments.

[0032] like Figures 1 to 3As shown, a ceramic protective cover for a photovoltaic connector includes a cover body 10 and a fastening member 20 that can be fitted onto the cover body 10. The cover body 10 is made of ceramic material, preferably talc ceramic, which can be integrally formed by extrusion in a mold. The cover body 10 has a pair of parts, and the cover body 10 specifically includes a wrapping member 11 and a sealing plate 12 formed on the wrapping member 11. After the pair of wrapping members 11 abut against each other, they form a wrapping cavity 100 for wrapping the photovoltaic connector 301. The pair of sealing plates 12 are located at opposite ends of the wrapping cavity 100 for partially sealing the wrapping cavity 100. At least one fastening member 20 is fitted onto the outer wall of the pair of wrapping members 11 to tightly fix the pair of wrapping members 11.

[0033] In this utility model, a package 11 and a sealing plate 12 are formed into a cover 10. The package 11 has a package groove 100a. The sealing plate 12 is formed on one side of the package groove 100a, and an opening 100b is formed on the other side of the package groove 100a. When the sides of the two covers 10 with package grooves 100a are brought together and the sides with sealing plates 12 are moved away from each other, the two package grooves 100a form a package cavity 100. The sealing plate 12 with a limiting function and the opening 100b connecting the package cavity 100 to the outside are respectively located on both sides of the package cavity 100. When using this utility model, a pair of covers 10 are fitted onto the outside of the photovoltaic connector 301. The two ends of the photovoltaic connector 301 can be abutted by the sealing plate 12, thereby limiting the photovoltaic connector 301 to the enclosure cavity 100. The connecting wires 302 on both sides of the photovoltaic connector 301 can pass through the opening 100b respectively. The pair of covers 10 are stably connected by the fastening member 20 fitted onto the pair of covers 10. The fastening member 20 can be selected as a cable tie, and the two sides of the pair of covers 10 are tightened by the binding action of the pair of cable ties.

[0034] When assembling a pair of covers 10 to form a wrapping cavity 100, since each cover 10 has a sealing plate 12 only on one side (the wrapping groove 100a), the combination... Figure 2 As shown, one assembly method involves positioning one cover 10 (e.g., with the opening of the wrapping groove 100a facing upwards), and rotating the other cover 10 180° around its central axis to an inverted position (with the opening of the wrapping groove 100a facing downwards), and then rotating it 180° horizontally. The two covers 10 are then joined together to form two sealing plates 12 located at both ends of the wrapping cavity 100 for partially sealing the wrapping cavity 100. Of course, other assembly methods can also be used if the above assembly result can be achieved.

[0035] After use, the ceramic protective cover for the photovoltaic connector allows the photovoltaic connector 301 to be placed inside the enclosure 100, preventing contact between the photovoltaic connector 301 and external components (such as photovoltaic panels). Since the cover 10 is made of ceramic, even if the photovoltaic connector 301 experiences leakage or fire due to aging, short circuits, or other reasons, the leakage or fire can be confined within the enclosure 100, thus preventing the spread of adverse effects and providing better protection. Furthermore, the pair of cover bodies 10 of the ceramic protective cover for the photovoltaic connector can be fastened together with the fastener 20 and then bound together without disassembling the photovoltaic connector 301, making installation convenient and not affecting the normal use of the photovoltaic connector 301. Additionally, the enclosure 100 is formed by the fastening of the pair of cover bodies 10, which have identical structures, facilitating processing and molding. Therefore, fewer specifications and types of components need to be prepared during production (only multiple cover bodies with the same structure are required), simplifying the production process.

[0036] Preferably, the projection of the sealing plate 12 along the central axis of the wrapping groove 100a is located within or coincides with the projection of the wrapping groove 100a along the central axis, that is, the sealing plate 12 does not protrude from the wrapping groove 100a. Preferably, the end face of the sealing plate 12 is flush with the end face of the wrapping component 11, which serves to limit the end of the photovoltaic connector 301 and is also easy to process and form.

[0037] Furthermore, such as Figure 4 As shown, a clearance groove 120 can be provided on the sealing plate 12 to facilitate the connection line 302 to pass through in a straight state and avoid bending of the connection line 302.

[0038] In addition, it should be noted that, in addition to allowing the connecting wire 302 to pass through, the opening 100b (or its combined relief groove 120) can make the wrapping cavity 100 have better penetration. For example, even if water droplets are generated in the wrapping cavity 100, or water droplets enter the wrapping cavity 100 from the external environment, they can flow out of the wrapping cavity 100 through the opening 100b (or its combined relief groove 120), thus preventing water droplets from accumulating in the wrapping cavity 100.

[0039] Preferably, a groove 111 is provided on the side wall of the package 11 away from the package cavity 100 (package groove 100a), and the fastening member 20 is disposed in the groove 111. After a pair of packages are abutted and fastened, the front grooves 111 on the two packages are connected. By embedding the two fastening members 20 into the two grooves on both sides respectively, the fastening members 20 can be prevented from shifting on the package 11, and the stability of the fastening members 20 on the cover 10 can be guaranteed.

[0040] like Figure 5As shown, in another embodiment of this utility model, a support block 113 is provided on the side wall of the package 11 away from the package cavity 100 (package groove 100a). The support block 113 is provided with an insertion port 1130 that penetrates its body. The fastening member 20 passes through the insertion port 1130, which can also ensure the stability of the fastening member 20 on the cover 10.

[0041] like Figure 2 and 4 As shown, in another embodiment of this utility model, the sides of the package 11 for mutual contact are provided with protrusions 1121 and grooves 1122. When a pair of package 11s abut against each other, the protrusion 1121 on one package 11 is embedded in the groove 1122 on the other package 11. For example, if a protrusion 1121 and a groove 1122 are respectively provided on both sides of one side of the package 11, when a pair of covers 10s abut and fasten in the aforementioned manner, the two protrusions 1121 can be respectively embedded in the two grooves 1122, thereby preventing the pair of covers 10s from sliding in the left-right or front-back direction. Preferably, protrusions 1121 and grooves 1122 can be provided on both sides of the package 11, so that the two sides of the package 11 can be more stable after abutting.

[0042] In another embodiment, the protrusion 1121 and the groove 1122 are connected on the side of the package 11 (the side on the same side) to form a wave shape. The interlocking of the waves forms a structure that prevents slippage, but this structure only has a good anti-slippage effect in the direction along the central axis of the package cavity 100.

[0043] like Figures 6 to 7As shown, in another embodiment of the present invention, unlike the above embodiments (where the sealing plate 12 is formed only on one side of the wrapping groove 100a), in this embodiment, sealing plates 12 are formed on both sides of the wrapping groove 100a. That is, two sealing plates 12 are provided on both sides of the wrapping groove 100a on the wrapping component 11. The projection of the sealing plate 12 along the central axis of the wrapping groove 100a is located within or coincides with the projection of the wrapping groove 100a along the central axis. The sealing plate 12 is provided with a clearance through hole 120' that penetrates its body and communicates with the wrapping groove 100a. In this embodiment, after a pair of covers 10 abut to form a wrapping cavity 100, since both sides of the wrapping groove 100a (wrapping member 11) have sealing plates 12, in order to enable the connecting line 302 of the photovoltaic connector 301 to extend out of the wrapping cavity 100, the connecting line 302 can be extended through the clearance through hole 120′ on the sealing plate 12. The clearance through hole 120′ can be formed inside the sealing plate 12 or on the edge of the sealing plate 12. When it is formed on the edge of the sealing plate 12, the pair of clearance through holes 120′ when the two sealing plates 12 abut are interconnected; and the clearance through hole 120′ can be set to support the connecting line 302 to prevent the connecting line 302 from shaking (e.g., the opening size is set to match the connecting line 302, or a protrusion is set in the clearance through hole 120′ to support and limit the connecting line 302).

[0044] In this embodiment, the cover 10 has a symmetrical structure. Therefore, the assembly method for a pair of covers 10 is as follows: one cover 10 is positioned (for example, with the opening of the wrapping groove 100a facing upwards), and the other cover 10, when in the same placement state, is rotated 180° around its central axis to be inverted (with the opening of the wrapping groove 100a facing downwards). Then, the two covers 10 are abutted and fastened together. Based on the above assembly method, the protrusions 1121 and grooves 1122 of the wrapping member 11 used for mutual positioning need to be formed on its two sides respectively.

[0045] In the above embodiments, further, the two sides of the package 11 that abut against another package are respectively provided with sealing strips 1131 and sealing grooves 1132. When a pair of packages 11 abut against each other, the sealing strips 1131 are respectively embedded in the sealing grooves 1132. Preferably, both the sealing strips 1131 and the sealing grooves 1132 penetrate the package 11 along the central axis of the package groove 100a. Through the cooperation of the sealing strips 1131 and the sealing grooves 1132, the package cavity 100 can be better sealed. This continuous cooperation of the concave and convex structure can prevent leakage of electricity.

[0046] The cross-section of the enclosing cavity 100 can be circular, elliptical, or polygonal, and the outer contour cross-section of the pair of enclosing components 11 after they abut each other can be circular, elliptical, or polygonal, such as... Figure 8As shown, in another embodiment of this utility model, the cross-section of the wrapping cavity 100 and the outer contour cross-section of the wrapping member 11 after they abut each other are both square.

[0047] The specific embodiments described herein are merely illustrative examples illustrating the spirit of this utility model. Those skilled in the art to which this utility model pertains may make various modifications or additions to the described specific embodiments or use similar methods to substitute them, without departing from the spirit of this utility model or exceeding the scope defined by the appended claims.

Claims

1. A ceramic protective cover for a photovoltaic connector, characterized in that, include: A pair of ceramic housings, each housing including a wrapping element and a sealing plate, wherein the pair of wrapping elements abut against each other to form a wrapping cavity for wrapping a photovoltaic connector, and at least one pair of sealing plates are respectively disposed on the pair of wrapping elements and located at opposite ends of the wrapping cavity for partially sealing the wrapping cavity. At least one fastening element is fitted onto the outer wall of the pair of said packages.

2. The ceramic protective cover for photovoltaic connectors according to claim 1, characterized in that, The package is provided with a package groove, one side of which is open and the other side is provided with a sealing plate. A pair of packages abut against each other to connect the pair of package grooves to form the package cavity.

3. The ceramic protective cover for photovoltaic connectors according to claim 2, characterized in that, The projection of the sealing plate along the central axis of the wrapping groove is located within or coincides with the projection of the wrapping groove along its central axis.

4. The ceramic protective cover for photovoltaic connectors according to claim 1, characterized in that, The package is provided with a package groove, and two sealing plates are provided on both sides of the package groove. The projection of the sealing plate along the central axis of the package groove is located within or coincides with the projection of the package groove along the central axis. The sealing plate is provided with a clearance perforation that penetrates its body and is connected to the package groove.

5. The ceramic protective cover for photovoltaic connectors according to claim 4, characterized in that, The package is provided with a sealing strip and a sealing groove on both sides for abutting with another package. When a pair of packages abut, the sealing strip is embedded in the sealing groove. Both the sealing strip and the sealing groove pass through the package along the central axis of the package groove.

6. The ceramic protective cover for photovoltaic connectors according to claim 1, characterized in that, The package has a groove on the side wall away from the package cavity, and the fastening member is disposed in the groove.

7. The ceramic protective cover for photovoltaic connectors according to claim 1 or 6, characterized in that, A support block is provided on the side wall of the package away from the package cavity. The support block has an insertion port that penetrates its body, and the fastening member passes through the insertion port.

8. The ceramic protective cover for a photovoltaic connector according to any one of claims 1 to 6, characterized in that, The package has a protrusion and a groove on the side for abutting with another package. When a pair of packages abut each other, the protrusion on one package is inserted into the groove on the other package.

9. The ceramic protective cover for photovoltaic connectors according to claim 1, characterized in that, The cross-section of the package cavity is circular, elliptical, or polygonal; the outer contour cross-section of a pair of packaged items after they abut each other is circular, elliptical, or polygonal.

10. The ceramic protective cover for a photovoltaic connector according to claim 1, characterized in that, The cover is a one-piece molded structure; the material of the cover is talc ceramic.

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