Fixing and sealing device for cable connector of photovoltaic power station

Abstract

The utility model discloses a fixing and sealing device for a cable connector of a photovoltaic power station, and relates to the technical field of cable junction boxes of photovoltaic power stations. Comprising a wiring opening box, a connecting assembly and a sealing assembly, the sealing assembly is installed at an opening in the top of the wiring opening box, the connecting assembly is installed in the wiring opening box, the connecting assembly comprises a wiring box wire harness assembly, and the wiring box wire harness assembly is installed in the center of the interior of the wiring opening box. The two ends of the junction box wire harness assembly are respectively provided with a transformer box, the two transformer boxes are electrically connected with the junction box wire harness assembly, and the exteriors of the two transformer boxes are respectively provided with transmission wire harnesses penetrating through the two sides of the exterior of the wiring opening box. According to the utility model, the transmission belt which enables the cables at the two ends not to pass through the wiring harness assembly of the junction box is arranged in the junction box, so that when the photovoltaic cable is electrified and maintained, current attached outside the sealing device can be avoided, and the potential safety hazard during actual maintenance is reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of cable junction boxes in photovoltaic power stations, in particular to a fixing and sealing device for cable connectors in photovoltaic power stations. Background Art

[0002] In a photovoltaic power station, cables and connectors are necessary to bring together the electricity from a large number of components and feed it into the inverter. The photovoltaic junction box is a connector for photovoltaic cables. It is a key component that connects the components, junction boxes, controllers, inverters and other components in the photovoltaic power generation system.

[0003] After searching, the patent with application publication number "CN211183861U" discloses a "photovoltaic connector fixing device". This application effectively avoids direct contact between the photovoltaic connector and the color steel tile roof by fixing the photovoltaic connector at the lower end of the photovoltaic module frame, thereby reducing the risk of arcing due to poor contact of the photovoltaic connector and improving the safety and stability of the operation of the photovoltaic power station.

[0004] However, in actual use, the above device may have insulation failure when the cable is under long-term load operation, so it has certain safety hazards when powered on for maintenance. For this reason, the applicant proposes a new device to solve the above problems. Utility Model Content

[0005] The purpose of the utility model is to provide a photovoltaic power station cable connector fixing and sealing device to solve the problems raised in the above background technology.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: a photovoltaic power station cable connector fixing and sealing device, comprising: a wiring opening box, a connecting component and a sealing component, wherein the sealing component is installed at the opening at the top of the wiring opening box, the connecting component is installed inside the wiring opening box, and the connecting component comprises: a wiring harness assembly of a wiring harness ...

[0007] A transmission belt for direct connection is installed between the two transformer boxes, and the transmission harness is electrically connected to the transmission belt and the wiring harness assembly of the junction box respectively;

[0008] The sealing assembly comprises a box cover, and an adjusting component is installed on the top of the box cover. The adjusting component is used for manually operating the direct connection between the transmission belt and the transformer box.

[0009] Furthermore, a connection slot is provided on the top of the transformer box, a conducting rod is installed in the connection slot of the transformer box, and a connecting ring is installed at one end of the connection slot of the transformer box;

[0010] The two ends of the transmission belt are installed outside the conductive rod and are electrically connected to the conductive rod. When the conductive rod and the connecting ring are in contact, the transmission belt and the wiring harness assembly of the junction box are electrically connected.

[0011] Furthermore, transmission notches adapted to the conduction rods are respectively provided on both sides of the top of the box cover, and the length specification of the transmission notches is the same as the length specification of the connection notches;

[0012] The adjusting component is installed on the top of the box cover, close to one side of the transmission notch and close to the connecting ring.

[0013] Furthermore, the adjustment component is an assembly block, and a plug-in notch is provided at one end of the side of the assembly block;

[0014] A plug is fixed on the top of the conducting rod, and a latch matched with the plugging notch is installed on the outer side of the plug.

[0015] Furthermore, heat dissipation gaps for ventilation and heat dissipation are respectively provided at two ends of the outside of the wiring opening box, and the heat dissipation gaps are in a strip-shaped grid structure.

[0016] Furthermore, a plurality of the connection components can be provided in the wiring opening box, and the plurality of connection components are respectively installed at two ends inside the wiring opening box.

[0017] Compared with the prior art, the beneficial effects of the utility model are:

[0018] The photovoltaic power station cable connector fixed sealing device is installed inside the junction box to prevent the cables at both ends from passing through the junction box harness assembly. This prevents the current from flowing outside the sealing device when the photovoltaic cable is powered on for maintenance, thereby reducing the potential safety hazards during actual maintenance.

[0019] In addition, by setting a sealing component on the top of the junction box, moisture, dust, etc. can be effectively prevented from entering the interior of the junction box, thereby improving the sealing performance and service life of the junction box; at the same time, heat dissipation gaps with a strip grid structure are respectively set on both sides of the outside of the junction opening box to avoid overheating during operation, thereby indirectly extending the service life of the device. BRIEF DESCRIPTION OF THE DRAWINGS

[0020] Figure 1 It is a diagram of the internal structure of the utility model;

[0021] Figure 2 This is a structural diagram of the sealing component of the utility model;

[0022] Figure 3 This is a structural diagram of the connection assembly of the utility model.

[0023] In the figure: 1, wiring opening box; 2, heat dissipation gap; 3, sealing assembly; 301, box cover; 302, transmission gap; 303, assembly block; 304, plug gap; 4, connection assembly; 401, wiring harness assembly of the junction box; 402, conduction rod; 403, transformer box; 404, plug; 405, connecting ring; 406, transmission harness; 407, latch; 408, transmission belt. DETAILED DESCRIPTION

[0024] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0025] When used in practice, this device plays a role of secondary protection. Through direct connection, the cable junction box in the existing device has no current when used for a long time, which facilitates intuitive operation and maintenance of the outside and inside of the cable junction box by eyes and hands.

[0026] like Figure 1-Figure 3 As shown, the utility model provides a technical solution: a photovoltaic power station cable connector fixing sealing device, comprising: a wiring opening box 1, a connecting component 4 and a sealing component 3, the sealing component 3 is installed at the opening at the top of the wiring opening box 1, the connecting component 4 is installed inside the wiring opening box 1, the connecting component 4 comprises: a wiring harness assembly 401 of the wiring box, the wiring harness assembly 401 of the wiring box is installed at the center position inside the wiring opening box 1, transformer boxes 403 are installed at both ends of the wiring harness assembly 401, and the two transformer boxes 403 They are electrically connected to the wiring harness assembly 401 of the junction box, and the outsides of the two transformer boxes 403 are respectively installed with transmission harnesses 406 that pass through the outside of the wiring opening box 1 on both sides; a transmission belt 408 for direct connection is installed between the two transformer boxes 403, and the transmission harness 406 is electrically connected to the transmission belt 408 and the wiring harness assembly 401 of the junction box respectively; the sealing component 3 includes: a box cover 301, and an adjustment component is installed on the top of the box cover 301, and the adjustment component is used to manually operate the direct connection between the transmission belt 408 and the transformer box 403.

[0027] It should be noted that, in the present application, the main function of the junction box harness assembly 401 is to integrate multiple wires, cables and connectors together to facilitate the management and distribution of electrical energy. The junction box harness assembly 401 is a mature technical device in the existing photovoltaic power station cable field, so the applicant will not elaborate on this. It should also be added that, in the present application, the role of the transformer box 403 is to reduce the current intensity load of the high voltage on the junction box harness assembly 401 and the transmission belt 408.

[0028] refer to Figure 3 It can be seen that in the present application, a connecting slot is provided on the top of the transformer box 403, a conducting rod 402 is installed in the connecting slot of the transformer box 403, and a connecting ring 405 is installed at one end of the connecting slot of the transformer box 403. It should be noted that both ends of the transmission belt 408 are installed outside the conducting rod 402 and are electrically connected to the conducting rod 402. When the conducting rod 402 and the connecting ring 405 are in contact, the transmission belt 408 and the junction box harness assembly 401 are electrically connected.

[0029] It should be added that in the present application, transmission notches 302 adapted to the conduction rod 402 are respectively provided on both sides of the top of the box cover 301, and the length specification of the transmission notch 302 is the same as the length specification of the connection notch, and the adjustment component is installed at the top of the box cover 301 near the transmission notch 302 and near the connecting ring 405. Figure 2 and Figure 3 It can be seen that in the present application, the adjusting component is an assembly block 303, one end of the side of the assembly block 303 is provided with a plugging notch 304, a plug 404 is fixed to the top of the conduction rod 402, and a pin 407 adapted to the plugging notch 304 is installed on the outer side of the plug 404.

[0030] In addition, reference Figure 1 It can be seen that in the present application, heat dissipation gaps 2 for ventilation and heat dissipation are respectively provided at both ends of the outside of the wiring opening box 1. The heat dissipation gaps 2 are in a strip grid structure. It should be noted that in actual use, in order to reduce the entry of dust into the device, each heat dissipation gap 2 is fixed with an inclined baffle plate.

[0031] It should also be noted that, in actual use of the present application, a plurality of connection components 4 can be provided in the wiring opening box 1 , and the plurality of connection components 4 are respectively installed at the two ends inside the wiring opening box 1 .

[0032] Finally, it should be noted that during use of the device, the photovoltaic power station cable connector fixing sealing device is installed on the cable junction box of the photovoltaic power station, and the position of the connecting component 4 is adjusted by adjusting the component so that the conductive rod 402 and the connecting ring 405 are in contact, so that when the device needs maintenance, it can be operated through the transmission notch 302 and the plug-in notch 304 on the box cover 301 to ensure that the photovoltaic cable continues to run through the transmission belt 408.

[0033] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. Photovoltaic power station cable connector fixing and sealing device, including: A wiring opening box (1), a connection component (4) and a sealing component (3), wherein the sealing component (3) is installed at the opening at the top of the wiring opening box (1), and the connection component (4) is installed inside the wiring opening box (1), characterized in that: The connection assembly (4) comprises: a junction box harness assembly (401), the junction box harness assembly (401) being installed at the center of the junction opening box (1), transformer boxes (403) being installed at both ends of the junction box harness assembly (401), both transformer boxes (403) being electrically connected to the junction box harness assembly (401), and transmission harnesses (406) passing through both sides of the outside of the junction opening box (1) being installed on the outside of the two transformer boxes (403); A transmission belt (408) for direct connection is installed between the two transformer boxes (403), and the transmission harness (406) is electrically connected to the transmission belt (408) and the junction box harness assembly (401) respectively; The sealing assembly (3) comprises: a box cover (301), and an adjustment component is installed on the top of the box cover (301), and the adjustment component is used to manually operate the direct connection between the transmission belt (408) and the transformer box (403).

2. The photovoltaic power station cable connector fixing and sealing device according to claim 1, characterized in that: The transformer box (403) is provided with a connection slot on the top, a conducting rod (402) is installed in the connection slot of the transformer box (403), and a connecting ring (405) is installed at one end of the connection slot of the transformer box (403); The two ends of the transmission belt (408) are installed outside the conductive rod (402) and are electrically connected to the conductive rod (402). When the conductive rod (402) and the connecting ring (405) are in contact, the transmission belt (408) and the junction box harness assembly (401) are electrically connected.

3. The photovoltaic power station cable connector fixing and sealing device according to claim 2, characterized in that: Transmission notches (302) adapted to the conduction rod (402) are respectively provided on both sides of the top of the box cover (301), and the length specification of the transmission notch (302) is the same as the length specification of the connection notch; The adjusting component is installed on the top of the box cover (301) at a position close to the transmission notch (302) and close to the connecting ring (405).

4. The photovoltaic power station cable connector fixing and sealing device according to claim 2, characterized in that: The adjusting component is an assembly block (303), and a plug-in notch (304) is provided at one end of the side of the assembly block (303); A plug (404) is fixed on the top of the conductive rod (402), and a plug (407) matching the plugging notch (304) is installed on the outer side of the plug (404).

5. The photovoltaic power station cable connector fixing and sealing device according to claim 1, characterized in that: Both ends of the outside of the wiring opening box (1) are respectively provided with heat dissipation gaps (2) for ventilation and heat dissipation, and the heat dissipation gaps (2) are in a strip-shaped grid structure.

6. The photovoltaic power station cable connector fixing and sealing device according to claim 1, characterized in that: A plurality of the connection components (4) can be provided in the wiring opening box (1), and the plurality of connection components (4) are respectively installed at two ends inside the wiring opening box (1).

Images