Cable fixing device and photovoltaic system

Abstract

The utility model relates to the technical field of distributed photovoltaic systems, in particular to a cable fixing device and a photovoltaic system. The utility model provides a cable fixing device which is arranged on a photovoltaic assembly, and the photovoltaic assembly is provided with an output cable. The cable fixing device comprises a device main body; the two sides of the device body are fixedly arranged on the two adjacent photovoltaic modules respectively, and a containing cavity is formed in the device body and used for installing an output cable. The device main body is arranged between the two adjacent photovoltaic modules, and the output cable of the photovoltaic module is installed in the accommodating cavity of the device main body, so that compared with the prior art, the output cable is not arranged in a mopping manner any more and is separated from the roof, and therefore, insulation reduction caused by temperature rise of a mopping line pipe can be effectively prevented, and the service life of the photovoltaic module can be prolonged. And fire disasters are easily caused.

Description

Technical Field

[0001] The utility model relates to the technical field of distributed photovoltaic systems, and particularly relates to a cable fixing device and a photovoltaic system. Background Art

[0002] A distributed photovoltaic system is a miniaturized photovoltaic system, generally including structures such as photovoltaic modules, a busbar box, an inverter, and an energy storage system; the distributed photovoltaic system is usually installed on the roof of a building or other available spaces, and can realize operation modes such as self-consumption with surplus power fed into the grid.

[0003] In the construction of a distributed photovoltaic system, especially for a distributed photovoltaic system laid on a color steel tile roof, due to the close distance and small space between the photovoltaic module and the color steel tile surface, it is not easy to fabricate a cable tray for supporting the output cable during construction. The current practice is that the output cable passes through a pipe and drags on the ground. During the peak power generation period in summer, due to the increase in the temperature of the color steel tile roof, the temperature of structures such as the pipe dragging on the ground is likely to increase, resulting in a reduction in the insulation of the line and prone to causing a fire. Summary of the Utility Model

[0004] In view of this, the main purpose of the utility model is to provide a cable fixing device for solving the problems that it is difficult to arrange an output cable tray for a distributed photovoltaic system on a color steel tile roof during construction, and the cable dragging on the ground is prone to causing a fire. The utility model also provides a photovoltaic system including the above cable fixing device.

[0005] To achieve the above purpose, an embodiment of one aspect of the utility model provides a cable fixing device, which is arranged on a photovoltaic module, and the photovoltaic module has an output cable;

[0006] The cable fixing device includes: a device main body;

[0007] Both sides of the device main body are fixedly arranged on two adjacent photovoltaic modules respectively, and the device main body is provided with a receiving cavity for installing the output cable.

[0008] Further, it further includes a fixing member;

[0009] The fixing member is arranged in the receiving cavity and is used for fixedly installing the output cable arranged in the receiving cavity.

[0010] Further, the fixing member is a binding rope arranged in the receiving cavity.

[0011] Further, first through holes are respectively formed on two opposite side walls of the receiving cavity, and two ends of the binding rope are respectively tied to the two first through holes.

[0012] Further, the device main body includes an upper buckle, a lower buckle and a connecting member;

[0013] Both sides of the upper buckle are respectively connected to the upper surfaces of two adjacent photovoltaic modules, both sides of the lower buckle are respectively connected to the lower surfaces of two adjacent photovoltaic modules, the connecting member is located between two adjacent photovoltaic modules, and both ends thereof are respectively connected to the upper buckle and the lower buckle.

[0014] Furthermore, a groove is provided on the lower buckle, the groove is located on a side of the lower buckle facing away from the upper buckle, and the accommodating cavity is formed in the groove.

[0015] Furthermore, two oppositely arranged extending portions are provided on a side of the lower buckle facing away from the upper buckle, and the groove is formed between the two extending portions.

[0016] Furthermore, the connecting member is a screw or a bolt.

[0017] Furthermore, a first sinking portion is provided on the upper buckle, and a second through hole is provided in the first sinking portion; a second sinking portion is provided on the upper buckle, and a third through hole is provided in the second sinking portion; both ends of the connecting member cooperate with the second through hole and the third through hole to lock the upper buckle and the lower buckle.

[0018] Another embodiment of the present invention further provides a photovoltaic system, including the cable fixing device in any of the above embodiments.

[0019] Advantages of the present invention:

[0020] A cable fixing device provided by the present invention is arranged on a photovoltaic module, and the photovoltaic module has an output cable; the cable fixing device includes: a device main body; both sides of the device main body are respectively fixed on two adjacent photovoltaic modules, and an accommodating cavity is provided on the device main body, and the accommodating cavity is used for installing the output cable.

[0021] By arranging the device main body between two adjacent photovoltaic modules and installing the output cable of the photovoltaic module in the accommodating cavity of the device main body, compared with the prior art, the output cable is no longer arranged on the ground, and the output cable is separated from the roof, so that the problem that the insulation is reduced due to the increase in the temperature of the ground-dragging wire pipe and thus it is easy to cause a fire can be effectively prevented. Description of the Drawings

[0022] To more clearly illustrate the specific embodiments of the present invention or the technical solutions in the prior art, the following will briefly introduce the drawings required for use in the description of the specific embodiments or the prior art. Obviously, the drawings in the following description are some embodiments of the present invention. For those of ordinary skill in the art, without creative efforts, other drawings can be obtained based on these drawings.

[0023] Figure 1 It is a schematic structural diagram of the cable fixing device provided by the embodiment of the present invention in cooperation with the photovoltaic module.

[0024] Icon: 1 - Photovoltaic module;

[0025] 2 - Device main body; 21 - Upper buckle; 211 - Upper flange; 212 - First sinking part; 22 - Lower buckle; 221 - Lower flange; 222 - Second sinking part; 223 - Extension part; 224 - First through hole; 225 - Groove; 226 - Accommodation cavity; 23 - Connecting piece;

[0026] 3 - Output cable. Specific embodiments

[0027] The following will clearly and completely describe the technical solutions of the present invention in conjunction with the embodiments. Obviously, the described embodiments are some embodiments of the present invention, rather than all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative efforts fall within the scope of protection of the present invention.

[0028] As Figure 1 shown, an embodiment of the present invention provides a cable fixing device provided on the photovoltaic module 1, and the photovoltaic module 1 has an output cable 3; the cable fixing device includes: a device main body 2; both sides of the device main body 2 are fixedly provided on two adjacent photovoltaic modules 1 respectively, and an accommodation cavity 226 is provided on the device main body 2 for installing the output cable 3.

[0029] The cable fixing device provided in this embodiment is provided on the photovoltaic module 1 and is used to fix the output cable 3 of the photovoltaic module 1; the photovoltaic module 1 is a solar panel, and multiple photovoltaic modules 1 are provided in the photovoltaic system, and the current generated by the photovoltaic module 1 is transmitted outward through the output cable 3. The above-mentioned cable fixing device includes a device main body 2, and both sides of the device main body 2 can be cooperatively connected with two adjacent photovoltaic modules 1. An accommodation cavity 226 for accommodating the output cable 3 is provided on the device main body 2. During assembly, the output cable 3 of the photovoltaic module 1 can be installed in the accommodation cavity 226, so as to fix the output cable 3 of the photovoltaic module 1 between two adjacent photovoltaic modules 1.

[0030] In this embodiment, by arranging the device main body 2 between two adjacent photovoltaic modules 1 and installing the output cable 3 of the photovoltaic module 1 in the accommodation cavity 226 of the device main body 2, compared with the prior art, the output cable 3 is no longer arranged to drag on the ground, and the output cable 3 is separated from the roof, so that it can effectively prevent the problem of reduced insulation caused by the increase in the temperature of the dragging wire pipe, which is likely to cause a fire.

[0031] The cable fixing device provided by the embodiment of the present utility model further includes a fixing member; the fixing member is arranged in the accommodation cavity 226 and is used to fixedly install the output cable 3 in the accommodation cavity 226.

[0032] In this embodiment, in order to improve the stability of the output cable 3, a fixing member for fixing the output cable 3 is further arranged in the accommodation cavity 226. During assembly, the output cable 3 is placed in the accommodation cavity 226, and after the wiring is completed, the output cable 3 can be fixed by the fixing member.

[0033] Preferably, for the cable fixing device provided by the embodiment of the present utility model, the above-mentioned fixing member is a tie rope arranged in the accommodation cavity 226. After the output cable 3 is installed in the accommodation cavity 226, the operator can tie the output cable 3 with the tie rope. Its structure is simple, the operation is convenient, the stability is strong, and the cost is low.

[0034] It can be understood that in this embodiment, the above-mentioned fixing member can also be a buckle or an adhesive arranged in the accommodation cavity 226, etc., which can also achieve the purpose of fixing the output cable 3 installed in the accommodation cavity 226 in this embodiment.

[0035] The cable fixing device provided by the embodiment of the present utility model, as Figure 1 shown, first through holes 224 are respectively formed on two opposite side walls of the accommodation cavity 226, and two ends of the tie rope are respectively tied to the two first through holes 224.

[0036] In this embodiment, the accommodation cavity 226 has two opposite side walls. In order to facilitate the tie rope to tie the output cable 3, first through holes 224 are formed on both side walls, and the first through holes 224 on the two side walls are coaxially arranged. During assembly, the tie rope is tied to the output cable 3, and then the two ends of the tie rope are respectively passed through the two first through holes 224 and tied at the first through holes 224.

[0037] Optionally, in this embodiment, the device main body 2 can fill the entire gap between two adjacent photovoltaic modules 1. Thus, in order to improve the stability of the output cable 3, along the extending direction of the device main body 2, a plurality of first through holes 224 are spaced apart on two side walls of the accommodation cavity 226, and the first through holes 224 on the two side walls are arranged in one-to-one correspondence.

[0038] The cable fixing device provided by the embodiment of the present utility model is as follows Figure 1 shown. The device body 2 includes an upper buckle 21, a lower buckle 22 and a connecting piece 23. The two sides of the upper buckle 21 are respectively connected to the upper surfaces of two adjacent photovoltaic modules 1. The two sides of the lower buckle 22 are respectively connected to the lower surfaces of two adjacent photovoltaic modules 1. The connecting piece 23 is located between two adjacent photovoltaic modules 1, and both ends are respectively connected to the upper buckle 21 and the lower buckle 22.

[0039] In this embodiment, the above-mentioned cable fixing device includes an upper buckle 21, a lower buckle 22 and a connecting piece 23. Among them, the upper buckle 21 has upper flanges 211 on both sides, and the two upper flanges 211 can respectively abut against the upper surfaces of two adjacent photovoltaic modules 1. The lower buckle 22 has lower flanges 221 on both sides, and the two lower flanges 221 can respectively abut against the lower surfaces of two adjacent photovoltaic modules 1. During assembly, first place the upper buckle 21 and the lower buckle 22 on the upper and lower surfaces of two adjacent photovoltaic modules 1, and then lock and fix them through the connecting piece 23. It has the advantages of simple structure, convenient installation and low cost.

[0040] The cable fixing device provided by the embodiment of the present utility model is as follows Figure 1 shown. The lower buckle 22 is provided with a groove 225, and the groove 225 is located on the side of the lower buckle 22 facing away from the upper buckle 21, and a receiving cavity 226 is formed in the groove 225.

[0041] In this embodiment, the lower buckle 22 is provided with a groove 225, and the groove 225 can be realized by setting a sinking structure on the lower buckle 22 or by setting two spaced extension parts 223 on the lower buckle 22, which will be elaborated in detail below. The above-mentioned receiving cavity 226 for installing the output cable 3 is formed in the groove 225. By setting the groove 225 to install the output cable 3, the structure is simple, and at the same time, the installation of the output cable 3 can be facilitated. In order to prevent the output cable 3 from falling off from the groove 225, the above-mentioned fixing piece is arranged in the groove 225 to fix the output cable 3 after the installation of the output cable 3 is completed. Further, in this embodiment, the groove 225 is arranged on the lower buckle 22, and the upper buckle 21 can shield the lower buckle 22, which is beneficial to protecting the output cable 3, avoiding the output cable 3 from being exposed to the sun and reducing the situation of the output cable 3 being eroded by rain and snow. Further, the above-mentioned groove 225 is preferably oriented towards the roof to further improve the protection effect on the output cable 3.

[0042] It can be understood that in this embodiment, the above-mentioned accommodating cavity 226 can also be a cavity or a wire tube provided on the device main body 2. At this time, the output cable 3 can be installed in the accommodating cavity 226 by directly threading the wire, and it can also achieve the purpose of the output cable 3 detaching from the roof in this embodiment.

[0043] It can be understood that in this embodiment, the groove 225 of the above-mentioned device main body 2 can also be set to be made of a flexible material, such as rubber or silica gel, etc. In this way, the output cable 3 can be fixed in the accommodating cavity 226 by an interference fit method.

[0044] The cable fixing device provided by the embodiment of the present utility model, as Figure 1 shown, two oppositely arranged extension parts 223 are provided on the surface of the lower buckle 22 facing away from the upper buckle 21, and the groove 225 is formed between the two extension parts 223.

[0045] As mentioned above, the accommodating cavity 226 is the groove 225 provided on the surface of the lower buckle 22 facing away from the upper buckle 21. In order to provide the groove 225 on the lower buckle 22, two oppositely arranged extension parts 223 extend from the surface of the lower buckle 22 facing away from the upper buckle 21. The extension parts 223 are preferably in a plate-like structure, which has a simple structure and is convenient for manufacturing. The above-mentioned groove 225 is formed between the two extension parts 223, and the above-mentioned first through hole 224 is provided on each extension part 223.

[0046] Optionally, in this embodiment, the extension part 223 can also be set to an L-shaped structure, or a "<" - shaped structure, etc., and they can all achieve the purpose of forming the groove 225 in this embodiment for installing the output cable 3.

[0047] The cable fixing device provided by the embodiment of the present utility model, as Figure 1 shown, the connecting member 23 is a screw or a bolt.

[0048] In this embodiment, the above-mentioned device main body 2 is a split structure. After the upper buckle 21 and the lower buckle 22 are assembled, they are locked and fixed by the connecting member 23. The connecting member 23 is preferably a screw or a bolt, which has a simple structure, low cost, and at the same time has the advantage of being convenient for installation.

[0049] It can be understood that in this embodiment, the above-mentioned device main body 2 can also be set to an integral structure. Only the upper overlapping edge 211 part of the upper buckle 21 and the lower overlapping edge 221 part of the lower buckle 22 are set to be made of a high-temperature resistant flexible material, such as rubber or silica gel, etc. During assembly, by bending the upper overlapping edge 211 and the lower overlapping edge 221 parts, it can also achieve the purpose of clamping the device main body 2 between two adjacent photovoltaic modules 1 in this embodiment.

[0050] The cable fixing device provided by the embodiment of the present utility model is as follows Figure 1 As shown, a first sinking part 212 is provided on the upper buckle 21, and a second through hole is provided in the first sinking part 212; a second sinking part 222 is provided on the upper buckle 21, and a third through hole is provided in the second sinking part 222; both ends of the connecting piece 23 are matched with the second through hole and the third through hole to lock the upper buckle 21 and the lower buckle 22.

[0051] When the above-mentioned connecting piece 23 is a screw or a bolt, a second through hole matching with the connecting piece 23 needs to be provided on the upper buckle 21, and a third through hole matching with the connecting piece 23 needs to be provided on the lower buckle 22. When the above-mentioned connecting piece 23 is a bolt, both ends of the bolt are respectively passed through the second through hole and the third through hole, and then locked with a nut. When the above-mentioned connecting piece 23 is a screw, one of the second through hole and the third through hole needs to be an internal thread hole; taking the third through hole as an internal thread hole as an example, the threaded part of the screw passes through the second through hole and is connected with the third through hole, and the head of the screw abuts against the second through hole.

[0052] Further, in this embodiment, in order not to affect the appearance of the photovoltaic system, a first sinking part 212 is provided on the upper buckle 21, and the first sinking part 212 is located between two upper overlapping edges 211. During assembly, the first sinking part 212 can enter between two adjacent photovoltaic modules 1; similarly, a second sinking part 222 is provided on the lower buckle 22, and the second sinking part 222 is located between two lower overlapping edges 221. During assembly, the second sinking part 222 can enter between two adjacent photovoltaic modules 1.

[0053] Furthermore, in this embodiment, the width of the first sinking part 212 is slightly greater than or equal to the distance between two adjacent photovoltaic modules 1, and the width of the second sinking part 222 is slightly greater than or equal to the distance between two adjacent photovoltaic modules 1, or the outer edges of the first sinking part 212 and the second sinking part 222 are made of high-temperature resistant flexible materials such as rubber or silica gel. In this way, when assembling the upper buckle 21 and the lower buckle 22, the upper buckle 21 and the lower buckle 22 can be pre-tightened between two adjacent photovoltaic modules 1, so as to facilitate the connection of the connecting piece 23 between the upper buckle 21 and the lower buckle 22.

[0054] In this embodiment, for the convenience of production, as Figure 1 shown, the inner side of the second sinking part 222 is preferably flush with the inner side of the extension part 223.

[0055] Another embodiment of the present utility model also provides a photovoltaic system, including the cable fixing device described in any of the above embodiments.

[0056] In this embodiment, the photovoltaic system is preferably a distributed photovoltaic system arranged on the roof. The distributed photovoltaic system arranged on the roof uses the above cable fixing device to fix the output cable 3. The output cable 3 is no longer arranged to drag on the ground and is separated from the roof, thereby effectively preventing the problem of insulation reduction caused by the increase in the temperature of the dragging pipeline, which is likely to cause a fire.

[0057] In the description of the present invention, it should be noted that the orientation or positional relationship indicated by terms such as "upper" and "lower" is based on the orientation or positional relationship shown in the drawings. It is only for the convenience of describing the present invention and simplifying the description, rather than indicating or implying that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation. Therefore, it should not be construed as a limitation to the present invention. In addition, the terms "first" and "second" are only used for descriptive purposes and cannot be understood as indicating or implying relative importance.

[0058] In the description of the present invention, it should be noted that unless otherwise clearly specified and defined, the terms "installation", "connection", and "connection" should be understood in a broad sense. For example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the connection inside two elements. For those of ordinary skill in the art, the specific meanings of the above terms in the present invention can be understood according to specific circumstances. In addition, in the description of the present invention, unless otherwise stated, the meaning of "a plurality" is two or more.

[0059] The above are only the preferred embodiments of the present invention and are not intended to limit the present invention. Any modifications, equivalent replacements, improvements, etc. made within the spirit and principle of the present invention shall be included in the protection scope of the present invention.

Claims

1. A cable fixing device is provided on a photovoltaic module (1), and the photovoltaic module (1) has an output cable (3). It is characterized in that The cable fixing device includes: a device main body (2). Both sides of the device main body (2) are fixedly provided on two adjacent photovoltaic modules (1) respectively. An accommodation cavity (226) is provided on the device main body (2), and the accommodation cavity (226) is used for installing the output cable (3).

2. The cable fixing device according to claim 1, wherein It further includes a fixing member. The fixing member is arranged in the accommodation cavity (226) and is used for fixedly installing the output cable (3) arranged in the accommodation cavity (226).

3. The cable fixing device according to claim 2, characterized in that, The fixing member is a cable tie arranged in the accommodation cavity (226).

4. The cable fixing device according to claim 3, characterized in that, First through holes (224) are formed on opposite side walls of the accommodation cavity (226), and both ends of the cable tie are respectively tied to the two first through holes (224).

5. The cable fixing device according to claim 1, characterized in that, The device main body (2) includes an upper buckle (21), a lower buckle (22) and a connecting member (23). Both sides of the upper buckle (21) are respectively connected to the upper surfaces of two adjacent photovoltaic modules (1). Both sides of the lower buckle (22) are respectively connected to the lower surfaces of two adjacent photovoltaic modules (1). The connecting member (23) is located between two adjacent photovoltaic modules (1), and both ends are respectively connected to the upper buckle (21) and the lower buckle (22).

6. The cable fixing device according to claim 5, characterized in that, A groove (225) is provided on the lower buckle (22). The groove (225) is located on a side of the lower buckle (22) facing away from the upper buckle (21), and the accommodation cavity (226) is formed in the groove (225).

7. The cable fixing device according to claim 6, characterized in that, Two oppositely arranged extension parts (223) are provided on a side of the lower buckle (22) facing away from the upper buckle (21), and the groove (225) is formed between the two extension parts (223).

8. The cable fixing device according to claim 5, characterized in that, The connecting member (23) is a screw or a bolt.

9. The cable fixing device according to claim 8, characterized in that, A first sinking part (212) is provided on the upper buckle (21), and a second through hole is provided in the first sinking part (212). A second sinking part (222) is provided on the upper buckle (21), and a third through hole is provided in the second sinking part (222). Both ends of the connecting member (23) cooperate with the second through hole and the third through hole to lock the upper buckle (21) and the lower buckle (22).

10. A photovoltaic system, characterized in that, It includes the cable fixing device according to any one of claims 1 to 9.

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