CN218678993U

CN218678993U - Intelligence photovoltaic terminal box body convenient to installation

Info

Publication number: CN218678993U
Application number: CN202223103210.2U
Authority: CN
Inventors: 段正刚; 刘军营
Original assignee: Suzhou QC Solar Co Ltd
Current assignee: Suzhou QC Solar Co Ltd
Priority date: 2022-11-22
Filing date: 2022-11-22
Publication date: 2023-03-21
Anticipated expiration: 2032-11-22

Abstract

The utility model provides an intelligent photovoltaic junction box body convenient to install, which comprises a box cover, a box body and a circuit board arranged in the box body, wherein the end part of the box body is provided with a cable buckle arranged with the box body; the end part of the box body comprises a cable groove for positioning the cable, and the cable buckle comprises a limiting column which is arranged on the side edge and matched with the limiting groove on the box body; a cable protecting cover is arranged at the position, corresponding to the cable groove in the box body, of the cable buckle; one side of the box body is provided with a fixing clamp. The utility model discloses an intelligence photovoltaic terminal box body carries out optimal design to the structure of box body, including the setting of independent cable buckle, the part equipment of the box body itself of not only being convenient for simplifies the equipment technology, also makes things convenient for terminal box and subassembly frame to reliably fix moreover to different clamping design schemes are provided, the user of being convenient for carries out photovoltaic system's connection installation according to the actual demand. The whole structure has high strength, reliable electrical connection and convenient installation.

Description

Intelligence photovoltaic terminal box body convenient to installation

Technical Field

The utility model relates to a solar photovoltaic system field especially relates to an adaptation is convenient for with nimble reliable intelligent photovoltaic terminal box body of installing of photovoltaic module.

Background

The photovoltaic power generation system is a power generation system which directly converts solar energy into electric energy, can give consideration to economic development and ecological protection while generating clean power, is widely applied to various scenes at present, is one of important clean energy sources for replacing traditional fossil energy sources, and has wide development prospect.

The photovoltaic module is a basic power generation unit in a photovoltaic power generation system, and in order to enable the photovoltaic module to form a complete power generation system, some electrical box (also called junction box) accessories are required to be installed together with the module, such as a module junction box which leads current out of the photovoltaic module and connects the photovoltaic module into a module string; for another example, when a plurality of photovoltaic modules are connected in series to form a photovoltaic module string with a dc high voltage of more than 1000V, an uncontrollable dc high voltage becomes a potential safety hazard of the photovoltaic power generation system, especially under fire, overhaul or other emergency conditions, serious obstacles are caused to accident treatment, and even personal safety of rescue workers is threatened; for another example, the intelligent optimizer can monitor the power generation state of the component in real time and improve the power generation efficiency of the component. The junction boxes with different functions are generally required to be connected with components, including electrical connection and structural connection, according to different use functions, some junction boxes are installed on the components when photovoltaic components are produced, some junction boxes are installed again when a photovoltaic power generation system is built, and other junction boxes are added when the existing photovoltaic components are modified, so that the component electrical boxes are required to adapt to installation requirements under different use situations.

Disclosure of Invention

The utility model aims at providing an intelligence photovoltaic terminal box body convenient to installation in order to adapt to photovoltaic system's development demand and current terminal box product and the not enough of unit mount structure, makes things convenient for the installation of terminal box and cable conductor, terminal box and subassembly, strong adaptability to control the cost of manufacture.

In order to achieve the above purpose, the utility model adopts the following technical scheme:

an intelligent photovoltaic junction box body convenient to install comprises a box cover, a box body and a circuit board arranged in the box body, wherein the circuit board is connected with a connector through a cable; a cable buckle fixedly mounted with the box body is arranged at the cable outlet at the end part of the box body;

the end part of the box body comprises a cable groove for positioning the cable, and the side wall of the box body and the cable groove are provided with limit grooves which are matched and fixed with the cable in a buckling manner; the box body is internally provided with a circuit board mounting positioning column and a supporting rib, the bottom of the box body is provided with a screw hole column, and the clamp is mounted on the box body through the locking of a screw and the screw hole column;

the cable buckle comprises a limiting column which is arranged on the side edge and matched with the limiting groove on the box body; the cable buckle is provided with a cable protecting cover at a position corresponding to the cable groove in the box body, and the cable protecting cover is matched with the cable groove to form a circular hole structure for allowing the cable to pass through and positioning the cable;

one side of the box body is fixed with a clamping clip for fixing the junction box and the photovoltaic assembly frame, and a barb structure is arranged on the clamping clip.

Preferably, the cable buckle on set up a plurality of cable protecting covers, correspond in the box body and set up a plurality of cable ducts.

Preferably again, cable duct in cable protecting cover and the box body extend to the box body outside and protrude a certain distance.

Further preferably, a reinforcing rib is integrally formed between the adjacent cable protecting covers.

Still preferably, the clip is bent in a substantially U-shape to form an open end for mounting to the photovoltaic module frame.

Still preferably, the clip is bent in a substantially S-shape to form two open ends for mounting to the photovoltaic module frame.

Preferably, the clamping device is provided with two groups of barb structures in opposite directions.

Preferably, the intelligent photovoltaic junction box body is arranged in a space between the assembly frame and the battery panel through clamping.

Preferably, the bottom of the box body is provided with a clamping installation positioning hole, and the clamping is provided with a positioning bump matched with the clamping installation positioning hole.

Preferably, the positioning column is located on the supporting rib, and a plurality of vertical reinforcing ribs are arranged on the inner side wall of the box body.

Preferably, a plurality of circuit board positioning buckles are arranged on the inner side surface of the box body; the upper edge of the box body is provided with a plurality of buckles matched with the box cover.

The beneficial effects of the utility model are that, intelligence photovoltaic terminal box body, carry out optimal design to the structure of box body, including the setting of independent cable buckle, the part equipment of box body itself of not only being convenient for simplifies the equipment technology, also makes things convenient for terminal box and subassembly frame to reliably fix moreover to different clamping design schemes are provided, the user of being convenient for carries out photovoltaic system's connection installation according to the actual demand. The whole structure has high strength, reliable electrical connection and convenient installation.

Drawings

Fig. 1 is a schematic diagram of an explosion structure of an intelligent photovoltaic junction box body convenient to install according to an embodiment of the present invention (a clip is not shown);

FIG. 2 is a schematic view of the cable clamp in the junction box body of FIG. 1;

FIG. 3 is a schematic structural view of the junction box body of FIG. 1;

FIG. 4 is a schematic structural view (back side) of the junction box body of FIG. 1;

FIG. 5 is a schematic view of the assembled junction box body of FIG. 1;

FIG. 6 is a schematic view of the assembled junction box body in another view;

FIG. 7 is a schematic view of the cable and circuit board soldered within the cassette body;

FIG. 8 is a schematic view of the cable and the circuit board welded outside the case body;

fig. 9 is a schematic structural view of a clip of an intelligent photovoltaic junction box body according to an embodiment of the present invention;

fig. 10 is a schematic structural view of a clip of an intelligent photovoltaic junction box body according to another embodiment of the present invention;

fig. 11 is a schematic view illustrating an installation state of the intelligent photovoltaic junction box and the assembly frame according to an embodiment of the present invention;

fig. 12 is an exploded view of an intelligent photovoltaic junction box body (not shown with clips) for easy installation according to another embodiment of the present invention;

FIG. 13 is a schematic structural view of a cable clip of the photovoltaic module junction box housing of FIG. 12;

fig. 14 is a schematic structural view of the assembled photovoltaic module junction box body of fig. 12.

In the figure, 10-box cover, 20' -buckle, 21-cable shield, 21' -cable groove, 212-reinforcing rib, 221, 222-limiting column, 30' -box body, 31-cable groove, 321, 322-limiting column groove, 34-screw hole column, 35-positioning column, 36-circuit board support rib, 37-circuit board hook, 38-box cover hook, 39-upper cover support rib, 301-screw hole, 302-positioning groove, 312-reinforcing rib, 40-circuit board, 70-clamp, 71' ' -barb, 72-screw mounting hole, 100-box body, 210-component frame and 220-component battery panel.

Detailed Description

In order to further understand the objects, structures, features and functions of the present invention, the following embodiments are described in detail.

Please refer to fig. 1, which is a schematic diagram of an explosion structure of an intelligent photovoltaic junction box convenient for installation according to an embodiment of the present invention, the junction box includes a box cover 10, a box body 30 and a circuit board 40 disposed in the box body 30, the circuit board 40 is connected to a connector through a cable; a cable buckle 20 is provided at the outlet of the cable at the end of the box body 30.

Referring to fig. 3, the end of the box body 30 includes an arc-shaped cable groove 31 for positioning and passing a cable, and the side wall of the box body and the cable groove 31 are provided with

limit grooves

321 and 322 fixed in cooperation with the cable buckle 20; a circuit board mounting positioning column 35 and a supporting rib 36 are arranged inside the box body, and in a preferred scheme, the positioning column 35 is positioned on the supporting rib 36; a plurality of circuit board buckles 37 are arranged on the inner side surface of the box body, and after the circuit board is installed in the box body, the edge part of the circuit board can be matched with the buckles 37 to fix the circuit board in the box body; the upper edge of the box body 30 is provided with a plurality of buckles 38 matched with the box cover, so that the box cover and the box body can be conveniently buckled and assembled. In a preferred embodiment, the inner side wall of the box body 30 is provided with a plurality of vertical reinforcing ribs 39, so that the structural strength of the box body can be improved. On the bottom side of the box body, there is a screw hole column 34, in which there is a screw hole 301 (see fig. 4) in the form of a blind hole; the bottom of the box body 30 is further provided with a clamp mounting positioning hole 302, and when the clamp is mounted, the positioning hole 302 is matched with a corresponding positioning lug 702 on the clamp (see fig. 10), so that the clamp can be rapidly positioned when mounted, and a screw can be conveniently locked.

Referring to fig. 2, the cable buckle 20 includes limiting posts 221 and 222 (see the enlarged portion in fig. 1) disposed at the side edges and engaged with the

limiting grooves

321 and 322, and the cable buckle is mounted in the box body through the engagement of the limiting posts and the limiting grooves; an arc-shaped cable protecting cover 21 is arranged at a position, corresponding to the cable groove 31 in the box body, on the cable buckle, the cable protecting cover 21 is matched with the cable groove 31 to form a circular hole structure, and a cable connected with the circuit board is fixed in the circular hole structure; in a specific embodiment, a plurality of cable protecting covers, such as two, three or more cable protecting covers, may be disposed on the cable buckle according to the design requirements of the intelligent photovoltaic junction box; similarly, a plurality of cable grooves are correspondingly arranged in the box body so as to connect a plurality of cables and the connector. In a preferred embodiment, as shown in fig. 2, ribs 212 are integrally formed between adjacent cable covers to increase the structural strength of the cable covers and to make the cable lines more securely held. In another preferred embodiment, the cable protecting cover 21 and the cable groove 31 in the box body extend to the outside of the box body for a certain distance, so that the reliability of the connection between the cable and the box body and the protection of the connecting end can be enhanced.

Referring to fig. 5 and 6, which show the product structure schematic diagram after the intelligent photovoltaic junction box of the present invention is assembled, on one side of the box body 30, the clip 70 is mounted on the box body 30 by the locking of the screw passing through the clip screw hole 72 and the screw hole 301 (located on the screw hole column 34) on the box body; in an embodiment, referring to fig. 9, the clip 70 is bent in a substantially U-shape and has an open end, and the clip can be engaged and fixed with the pv module frame (the direction of the arrow in the figure is the module frame engaging direction) to mount the intelligent pv junction box on the module frame, referring to fig. 11, which is a schematic view of the mounting structure of the intelligent pv junction box 100 and the module frame 210, the intelligent pv junction box 100 is mounted in the space between the module frame 210 and the battery panel 220. Therefore, the intelligent photovoltaic junction box body, the cable, the connector and the like can be arranged inside the frame, so that the photovoltaic assembly and the photovoltaic system are tidier on the whole, the wire is not externally hung, and the safety can be improved. In order to improve the buckling effect of the clip and the frame of the component, in a preferred embodiment, the clip is provided with a barb structure 71, so that the clip is prevented from easily falling off from the frame. In another preferred embodiment, referring to fig. 10, the clip 70' is substantially S-shaped and has two open ends, which can provide two mounting directions (arrow directions in the figure), so that a user can flexibly set the mounting direction of the intelligent photovoltaic junction box on the frame of the module, and the intelligent photovoltaic junction box can be installed in a forward or reverse direction; in the structure, the clamping clip 70 'is provided with barb structures 71' and 71 ″ in opposite directions, so that the intelligent photovoltaic junction box can be prevented from easily falling off from the frame through the barb structures regardless of the normal installation or the reverse installation.

Referring to fig. 7 and 8, the intelligent photovoltaic junction box body of the present invention can facilitate the connection of the cable line and the circuit board in the box body through the design of the independent cable buckle 20, and when assembling, as shown in fig. 7, the cable line is fixed in position by the installation of the cable buckle 20, and then is fixedly connected with the circuit board in the box body, and can be welded, riveted, etc.; or as shown in fig. 8, the cable and the circuit board may be fixedly connected outside the box body, and then installed in the box body, and the cable may be fixed by the cable fastener 20.

Fig. 12 to 14 are schematic structural diagrams illustrating another embodiment of the intelligent photovoltaic junction box of the present invention, in this embodiment, for example, when the volume of the intelligent photovoltaic junction box is small and the number of connected cables and connectors is small, the cable buckle 20' and the cable cover 21' and the cable groove on the box body 30' do not extend and protrude outside the box body, and the connection strength between the cables and the circuit board in the box body can also be ensured.

The utility model discloses an intelligence photovoltaic terminal box body carries out optimal design to the structure of box body, including the setting of independent cable buckle, the part equipment of the box body itself of not only being convenient for simplifies the equipment technology, and also make things convenient for the terminal box body to reliably fix with the subassembly frame moreover to different clamping design schemes are provided, the user of being convenient for carries out photovoltaic system's connection installation according to the actual demand. The whole structure has high strength, reliable electrical connection and convenient installation.

The present invention has been described in connection with the above embodiments, which are only examples of the implementation of the present invention. It should be noted that the disclosed embodiments do not limit the scope of the invention. On the contrary, the invention is not to be limited by the spirit and scope of the appended claims.

Claims

1. An intelligent photovoltaic junction box body convenient to install is characterized in that the junction box body comprises a box cover, a box body and a circuit board arranged in the box body, and the circuit board is connected with a connector through a cable; a cable buckle fixedly mounted with the box body is arranged at the cable outlet at the end part of the box body;

2. The intelligent photovoltaic junction box body convenient to install as claimed in claim 1, wherein a plurality of cable protecting covers are arranged on the cable buckle, and a plurality of cable grooves are correspondingly arranged in the box body.

3. The intelligent photovoltaic junction box body convenient to install as claimed in claim 1 or 2, wherein the cable protecting cover and the cable groove in the box body extend to the outside of the box body for a certain distance.

4. The intelligent photovoltaic junction box body convenient to install as claimed in claim 3, wherein reinforcing ribs are integrally formed between adjacent cable protecting covers.

5. An intelligent photovoltaic junction box body convenient to install as claimed in claim 1 or 2, wherein the clip is bent in a substantially U-shape to form an open end for mounting with the photovoltaic module frame.

6. An intelligent photovoltaic junction box body convenient to install as claimed in claim 1 or 2, wherein the clip is bent in a substantially S shape to form two open ends for being installed on the photovoltaic module frame.

7. The intelligent photovoltaic junction box body convenient to install as claimed in claim 6, wherein two sets of barb structures in opposite directions are arranged on the clip.

8. The intelligent photovoltaic junction box body convenient to mount as claimed in claim 1, wherein the bottom of the box body is provided with a clamping mounting positioning hole, and the clamping is provided with a positioning bump matched with the clamping mounting positioning hole.

9. The intelligent photovoltaic junction box body convenient to install as claimed in claim 1, wherein the positioning columns are located on the supporting ribs, and a plurality of vertical reinforcing ribs are arranged on the inner side wall of the box body.

10. The intelligent photovoltaic junction box body convenient to install as claimed in claim 1, wherein a plurality of circuit board positioning buckles are arranged on the inner side surface of the box body; the upper edge of the box body is provided with a plurality of buckles matched with the box cover.