Photovoltaic string direct-current cable buckling device

Abstract

The embodiment of the utility model discloses a photovoltaic string direct current cable buckling device. The photovoltaic string direct-current cable buckling device comprises a fixing piece body, the fixing piece body is arranged in channel steel, one end of the fixing piece body is provided with a first supporting part, and the other end of the fixing piece body is provided with a second supporting part; the first supporting part is fixedly connected to the fixing part body in a telescopic mode, a cable ejector rod is arranged on the first supporting part, the cable ejector rod and the first inner groove face in the channel steel are oppositely arranged, and a first cable fixing space is reserved between the cable ejector rod and the first inner groove face in the channel steel; and the second supporting part is fixedly connected to the fixing piece body, a supporting ejector rod is arranged on the second supporting part, and the supporting ejector rod is connected with a second inner groove face in the steel channel in a supporting mode. According to the photovoltaic string direct current cable buckling device, the problems that in the prior art, cables are not fixed, and line faults are likely to occur are solved.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of solar photovoltaic energy, and particularly relates to a photovoltaic string direct current cable buckle device. BACKGROUND

[0002] After the cable between photovoltaic modules is eroded by light, cleaning and rain and snow, the cable is prone to insulation aging, and the insulation of the cable connector is also damaged, which causes the string branch to frequently report a branch grounding fault, and in severe cases, causes a short circuit fire and a fire accident. Therefore, the string cable between the photovoltaic modules needs to be fixed.

[0003] The existing method mostly directly stores the direct current cable in a channel steel, fixes both ends of the cable, or fixes the position of the cable by using a special cable clamp, so as to avoid direct contact of the sun and rain and snow, and ensure the safety of the photovoltaic line.

[0004] However, the existing cable fixing device has the problem of poor use effect. CONTENT OF THE UTILITY MODEL

[0005] The present application provides a photovoltaic string direct current cable buckle device to solve the problem of poor use effect of the existing cable fixing device.

[0006] The present application provides a photovoltaic string direct current cable buckle device, which comprises:

[0007] A fixing member body is arranged in the channel steel, one end of the fixing member body is provided with a first support part, and the other end of the fixing member body is provided with a second support part;

[0008] The first support part is fixedly connected to the fixing member body in an extendable manner, a cable jack is arranged on the first support part, the cable jack is arranged opposite to a first inner groove surface in the channel steel, and a first cable fixing space is left between the cable jack and the first inner groove surface in the channel steel;

[0009] The second support part is fixedly connected to the fixing member body, a support jack is arranged on the second support part, and the support jack is supported and connected to a second inner groove surface in the channel steel.

[0010] In some embodiments, a first threaded hole is formed in one end of the fixing member body, and the first support part is fixedly connected to the fixing member body in an extendable manner by being screwed into the first threaded hole.

[0011] In some embodiments, a second threaded hole is formed in the other end of the fixing member body, and the second support part is fixedly connected to the fixing member body in an extendable manner by being screwed into the second threaded hole.

[0012] In some embodiments, the support jack is an arc-shaped rod, and the opening direction of the support jack faces the second inner groove surface.

[0013] In some embodiments, the two ends of the arc-shaped rod are arranged towards the outside of the photovoltaic module string DC cable buckle device.

[0014] In some embodiments, the cable top rod is an arc-shaped rod, and the opening direction of the cable top rod is towards the first inner groove surface.

[0015] In some embodiments, the cable top rod comprises a first arc-shaped rod and a second arc-shaped rod, and a gap is left between the first arc-shaped rod and the second arc-shaped rod.

[0016] The first support part is provided with a first support rod and a second support rod, wherein the first support rod is connected with the first arc-shaped rod, and the second support rod is connected with the second arc-shaped rod.

[0017] In some embodiments, the first support rod and the first support part, and the second support rod and the first support part are further connected with a reinforcing rib rod.

[0018] In some embodiments, an extension part is arranged along the circumference of the fixing member body, and the extension part at the channel steel notch is outside the channel steel notch.

[0019] In some embodiments, there are two extension parts, one of which is arranged close to the first support part, and the other is arranged close to the second support part.

[0020] The photovoltaic module string DC cable buckle device provided by the present application fixes the cable between the photovoltaic modules inside and above the channel steel through the interaction between the first support part, the second support part and the channel steel, avoiding direct contact with sunlight and rain and snow. At the same time, the telescopic connection between the first support part and the fixing member body makes the photovoltaic module string DC cable buckle device provided by the present application adaptable to channel steels of different models. The second support part provides a stress point for the photovoltaic module string DC cable buckle device, enhances the stability of the device, and prevents the device from falling over. BRIEF DESCRIPTION OF DRAWINGS

[0021] The drawings incorporated into the specification and forming part of the specification, show embodiments consistent with the present application, and together with the specification, serve to explain the principles of the present application.

[0022] Figure 1 The structural schematic diagram of the photovoltaic module string DC cable buckle device provided by the present application embodiment;

[0023] Figure 2 The structural schematic diagram of the first support part provided by the present application embodiment;

[0024] Figure 3 The structural schematic diagram of the extension part provided by the present application embodiment.

[0025] Reference signs:

[0026] 1000 - Photovoltaic module string DC cable buckle device; 1100 - fixing body; 1110 - first threaded hole; 1120 - second threaded hole; 1200 - first support part; 1210 - cable top rod; 1211 - first arc-shaped rod; 1212 - second arc-shaped rod; 1220 - first support rod; 1230 - second support rod; 1240 - reinforcing rod; 1300 - second support part; 1310 - support top rod; 1400 - extension part.

[0027] The specific embodiments of the present application have been shown by the above drawings, and will be described in more detail hereinafter. These drawings and the written description are not intended to restrict the scope of the present application concept in any way, but to illustrate the present application concept to those skilled in the art by referring to specific embodiments. DETAILED DESCRIPTION

[0028] The exemplary embodiments will be described in detail herein with reference to the accompanying drawings. In the following description, unless otherwise indicated, the same numbers in different drawings represent the same or similar elements. The embodiments described in the following exemplary embodiments are not representative of all embodiments consistent with the present application. Rather, they are merely examples of devices and methods consistent with some aspects of the present application as detailed in the appended claims.

[0029] In the process of installing a photovoltaic power station, photovoltaic modules are fixed on a support, and the cross beam of the support uses a special channel steel. The cables between the modules are fixed in the channel steel. However, part of the line is long, and this installation method can cause the DC cable to fall outside the channel steel. With sunlight, module cleaning, and snow erosion, the insulation layer of the cable will be damaged, the cable connector insulation will be damaged, the module string branch will frequently report a branch ground fault, and the most serious one will cause a short circuit fire, causing a fire accident. Therefore, it is necessary to fix the module string cable installed in the cross beam, place it on top and prevent direct sunlight, prevent direct contact with rain and snow, prevent insulation damage, and avoid accidents and accidents. Most of the prior art uses a specially designed cable clamp to fix the cable on the frame or support of the photovoltaic module, but this method uses a clamp with a short service life, does not have compatibility, and has a high maintenance difficulty.

[0030] To solve the problem of short service life, lack of compatibility, and high maintenance difficulty of the clamp in the prior art, the present application provides a photovoltaic module string DC cable buckle device, which is provided with a first support part and a second support part connected to the fixing body in an extendable manner, fixes the position of the DC cable, and at the same time makes the photovoltaic module string DC cable buckle device compatible with different types of channel steel. Two extension parts are arranged on the circumference of the fixing body to enhance the stability of the device.

[0031] The photovoltaic string direct current cable buckle device provided by the application aims to solve the above technical problems of the prior art.

[0032] The technical solutions of the application and how the technical solutions solve the above technical problems will be described in detail below with specific examples. The following specific examples can be combined with each other, and the same or similar concepts or processes can not be described again in some examples. The embodiments of the application will be described below with reference to the drawings.

[0033] Figure 1 A structural schematic diagram of the photovoltaic string direct current cable buckle device provided by the embodiment of the application is shown in FIG. 1. Figure 1 As shown in FIG. 1, the photovoltaic string direct current cable buckle device 1000 includes a fixing body 1100, a first support part 1200, and a second support part 1300.

[0034] The fixing body 1100 is used to connect the first support part 1200 and the second support part 1300, adjust the relative position between the first support part 1200 and the first inner groove surface of the channel steel, and adjust the size of the photovoltaic string direct current cable buckle device 1000. The fixing body 1100 is in a column shape.

[0035] The first support part 1200 is used to fix the cable in the first cable fixing space of the channel steel and is in a column shape. The first support part 1200 includes a cable top rod 1210, which is used to contact the cable between the photovoltaic module and fix the cable at a target position to prevent movement or sliding. The first support part 1200 is fixedly connected to one end of the fixing body 1100 in an extendable manner. In the embodiment of the application, the first support part 1200 and the fixing body 1100 can be connected through an extension structure formed by multiple extension pipe segments or through a clamping groove and buckle fitting mode.

[0036] The second support part 1300 is used to provide support for the photovoltaic string direct current cable buckle device 1000. One end of the second support part 1300 is provided with a support top rod 1310, which is an arc-shaped rod. The two ends of the arc-shaped rod are arranged toward the outside of the device. The support top rod 1310 is used to contact the second inner groove surface of the channel steel to provide a force point for the photovoltaic string direct current cable buckle device 1000 and ensure the stability of the device. The acting surface of the support top rod 1310 and the channel steel is a plane.

[0037] In the embodiment of the present application, the worker places the target cable on the cable top rod 1210 of the first support part 1200, holds the fixing part body 1100, places the photovoltaic module string DC cable buckle device 1000 in the channel steel, and then through the support action of the inner groove surface of the channel steel on the second support part 1300, the photovoltaic module string DC cable buckle device 1000 fixes the cable in the first cable fixing space of the channel steel. When there are a large number of DC cables, the cable connector and part of the DC cable are fixed in the first cable fixing space, and the remaining DC cable is fixed in the space between the support top rod 1310 of the second support part 1300 and the second inner groove surface of the channel steel, so as to fix all the cables in the channel steel, avoid the cables from falling off, and prevent direct sunlight and direct contact with rain and snow.

[0038] The channel steel is a long strip steel material with a groove shape, and can be used as a support and connecting member in the installation engineering of the photovoltaic module. In the embodiment of the present application, the first inner groove surface of the channel steel is the upper surface on the inner side of the channel steel, and the second inner groove surface in the channel steel is the lower surface on the inner side of the channel steel.

[0039] The first threaded hole 1110 can also be arranged on the fixing part body 1100. In the embodiment of the present application, the first support part 1200 can be fixedly connected with the fixing part body 1100 in an extendable and retractable manner through being screwed in the first threaded hole 1110. This connection mode can adjust the relative position between the first support part 1200 and the fixing part body 1100, and adapt to different models of channel steels.

[0040] The second threaded hole 1120 can also be arranged on the fixing part body 1100. In the embodiment of the present application, the second support part 1300 can be fixedly connected with the fixing part body 1100 in an extendable and retractable manner through being screwed in the second threaded hole 1120.

[0041] In the embodiment of the present application, the first support part 1200 and the second support part 1300 can be connected through a bidirectional nut. When the bidirectional nut is rotated, the first support part 1200 and the second support part 1300 will move towards each other or move in the opposite direction at the same time. The bidirectional nut can lock in both directions, preventing the bolt or screw rod from loosening under vibration or other external forces.

[0042] In the embodiment of the present application, the first support part 1200 and the second support part 1300 are made of stainless steel, and the surfaces of the first support part 1200 and the second support part 1300 are provided with an insulating layer to resist chemical erosion and prolong the service life of the fixing part.

[0043] The support top rod 1310 can be provided as an arc-shaped rod, and the opening direction of the support top rod 1310 is towards the second inner groove surface. In the embodiment of the present application, the support top rod 1310 can not only provide support, but also fix part of the cables. When the number of cables exceeds the capacity of the first cable fixing space, the staff can fix part of the cables between the support top rod 1310 and the second inner groove surface of the channel steel.

[0044] The photovoltaic string direct current cable buckle device 1000 provided by the embodiment of the present application uses the interaction between the first support part 1200, the second support part 1300 and the channel steel to fix the cables between the photovoltaic modules above the channel steel. By providing the second support part 1300 to provide a stable structure and control the size of the first cable fixing space, the problem of cable fixation, direct exposure to sunlight and direct contact with rain and snow, which leads to line failure, in the prior art is solved.

[0045] Figure 2 The structural diagram of the first support part provided by the embodiment of the present application is shown in FIG. 1, which shows that the first support part 1200 includes a cable top rod 1210, a first support rod 1220, a second support rod 1230 and a reinforcing rib rod 1240. Figure 2

[0046] The cable top rod 1210 is used to fix the cables in the first cable fixing space, and is in a column shape. The cable top rod 1210 includes a first arc-shaped rod 1211 and a second arc-shaped rod 1212. An empty space is left between the first arc-shaped rod 1211 and the second arc-shaped rod 1212 to increase the cable capacity of the first cable fixing space.

[0047] The first support rod 1220 is used to connect with the first arc-shaped rod 1211 to fix the first arc-shaped rod 1211 on the first support part 1200.

[0048] The second support rod 1230 is used to connect with the second arc-shaped rod 1212 to fix the second arc-shaped rod 1212 on the first support part 1200.

[0049] The reinforcing rib rod 1240 is used to enhance the stability between the first support rod 1220 and the first support part 1200, and between the second support rod 1230 and the first support part 1200.

[0050] In the embodiment of the present application, the first arc-shaped rod 1211 and the second arc-shaped rod 1212 in the cable top rod 1210 should be selected as relatively thick steel rods with a certain width, so that the contact surface of the cable top rod 1210 and the first inner groove surface of the channel steel is a plane to improve the stability of the fixing part. The opening width of the cable top rod 1210 is determined according to the leg width of the channel steel to fix all the cables inside the channel steel. The arc length of the first arc-shaped rod 1211 and the second arc-shaped rod 1212 can be set according to actual conditions.​

[0051] The first support part 1200 provided by the embodiment of the application fixes the cable between the cable top rod 1210 and the first inner groove surface of the channel steel, and sets the reinforcing rib 1240 between the first support rod 1220 and the first support part 1200 and between the second support rod 1230 and the first support part 1200 to enhance the stability of the structure, thereby avoiding the situation that the top rod is broken and the cable falls outside the channel steel, and also avoiding the wear of the line.

[0052] Figure 3 The structure diagram of the extension part provided by the embodiment of the application is shown in FIG. 14. Figure 3 As shown in FIG. 14, the extension part 1400 is arranged on the circumference of the body of the fixing part, and the extension part 1400 at the channel steel slot is outside the channel steel slot, which is used to improve the stability of the photovoltaic module string DC cable buckle device.

[0053] The extension part 1400 has two, one of which is arranged close to the first support part of the first cable fixing space, and the other is arranged close to the second support part of the first cable fixing space. Figure 3 The extension part 1400 shown in FIG. 14 is a cross-sectional view of the extension part 1400 on the circumference of the body of the fixing part.

[0054] In the embodiment of the application, the lower end of the extension part 1400 arranged close to the first support part is connected to the upper end of the extension part 1400 arranged close to the second support part, and the upper end of the extension part 1400 arranged close to the first support part is provided with a hook for connecting with the body of the fixing part.

[0055] The photovoltaic module string DC cable buckle device provided by the embodiment of the application can be used in cooperation with the C-shaped channel steel, and is used to connect adjacent photovoltaic modules and fix the DC cable between the adjacent photovoltaic modules.

[0056] The working principle of the embodiment of the application is as follows:

[0057] The body of the fixing part is placed inside the target channel steel, the DC cable and the cable connector are clamped into the cable top rod of the first support part, the element connecting the first support part and the second support part is rotated, the size of the photovoltaic module string DC cable buckle device is adjusted, the DC cable is completely fixed inside the channel steel, the extension part is installed on the circumference of the body of the fixing part to improve the stability of the body of the fixing part, thereby avoiding the direct contact of sunlight and rain and snow, and ensuring the safety of the line.

[0058] The beneficial effects of the embodiment of the application are as follows:

[0059] 1. The photovoltaic string direct current cable buckle device provided by the application can fix the direct current cable between photovoltaic modules above the inside of the channel steel, avoid the direct current cable from falling to be directly contacted by sunlight and rain and snow, and avoid safety hazards;

[0060] 2. The photovoltaic string direct current cable buckle device provided by the application has simple structure, and is convenient for production, installation and maintenance;

[0061] 3. The photovoltaic string direct current cable buckle device provided by the application has strong compatibility and is suitable for different models of channel steel.

[0062] In the description of the embodiments of the application, it should be noted that, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connecting" should be understood in a broad sense, for example, can be fixed connection, can be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship of two elements. For those skilled in the art, the specific meaning of the above terms in the embodiments of the application can be understood according to the specific circumstances.

[0063] In the description of the present application, the description of the terms "one embodiment", "some embodiments", "illustrative embodiment", "example", "specific example" or "some examples" means that the specific features, structures, materials or characteristics described in connection with the embodiment or example are included in at least one embodiment or example of the present application. The illustrative description of the above terms in the present application does not necessarily mean the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner.

[0064] It can be understood that the various numbers involved in the embodiments of the present application are only for the convenience of differentiation, and do not limit the scope of the embodiments of the present application.

[0065] It can be understood that in the embodiments of the present application, the size of the serial number of the above processes does not mean the order of execution, and the execution order of the processes should be determined according to its function and inherent logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0066] So far, the technical scheme of the present application has been described in combination with the preferred embodiments shown in the drawings, but those skilled in the art can easily understand that the protection scope of the present application is obviously not limited to these specific embodiments. Those skilled in the art can make equivalent changes or replacements to related technical features without departing from the principles of the present application, and the technical schemes after the changes or replacements will fall within the protection scope of the present application.

Claims

1. A photovoltaic string DC cable clip device, characterized by, The utility model relates to a fixing piece body (1100) is placed in channel steel, one end of fixing piece body (1100) is equipped with first support part (1200), the other end of fixing piece body (1100) is equipped with second support part (1300), first support part (1200) is fixedly connected in fixing piece body (1100), and first support part (1200) is equipped with cable jack (1210), cable jack (1210) is opposite with first inner groove surface in channel steel, and first cable fixed space is left between cable jack (1210) and first inner groove surface in channel steel, second support part (1300) is fixedly connected in fixing piece body (1100), and second support part (1300) is equipped with support jack (1310), and support jack (1310) is supportedly connected with second inner groove surface in channel steel. One end of fixing piece body (1100) is equipped with first threaded hole (1110), and first support part (1200) is rotatively connected in first threaded hole (1110) and is fixedly connected with fixing piece body (1100) in telescopic mode. The other end of fixing piece body (1100) is equipped with second threaded hole (1120), and second support part (1300) is rotatively connected in second threaded hole (1120) and is fixedly connected with fixing piece body (1100) in telescopic mode. Support jack (1310) is arc-shaped rod, and the opening direction of support jack (1310) is towards second inner groove surface.

2. The apparatus of claim 1, wherein, The two ends of arc-shaped rod are arranged towards the outside of photovoltaic module string direct current cable buckle device.

3. The apparatus of claim 1, wherein, Cable jack (1210) is arc-shaped rod, and the opening direction of cable jack (1210) is towards first inner groove surface.

4. The apparatus of claim 3, wherein, Cable jack (1210) includes first arc-shaped rod (1211) and second arc-shaped rod (1212), and gap is left between first arc-shaped rod (1211) and second arc-shaped rod (1212).

5. The apparatus of claim 4, wherein, First support part (1200) is equipped with first support rod (1220) and second support rod (1230), wherein first support rod (1220) is connected with first arc-shaped rod (1211), and second support rod (1230) is connected with second arc-shaped rod (1212).

6. The apparatus of claim 1, wherein, First support rod (1220) and first support part (1200) and second support rod (1230) and first support part (1200) are further connected with reinforcing rib rod (1240).

7. The apparatus of claim 6, wherein, Extension part (1400) is arranged along the circumference of fixing piece body (1100), and extension part (1400) at channel steel slot opening is outside channel steel slot opening. ​ 8. The apparatus of claim 7, wherein, ​ 9. The apparatus of claim 1, wherein, ​ 10. The apparatus of claim 9, wherein, The extension parts (1400) are two, and one of the extension parts (1400) is arranged close to the first support part (1200), and the other extension part (1400) is arranged close to the second support part (1300).

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