CN115529001B - High multichannel of security cuts off terminal box - Google Patents

Abstract

The invention relates to the technical field of photovoltaic accessories, in particular to a high-safety multi-channel turn-off junction box which comprises a main box body, a first electromagnet, a second electromagnet, a third electromagnet, a first cable, a second cable and a third cable. According to the multi-channel turn-off junction box with high safety, the first overturning accommodating cavity, the second overturning accommodating cavity and the third overturning accommodating cavity are formed in the junction box, so that the junction box can be completely accommodated in the junction box when in idle, the occupation of the external space of the junction box is reduced, the junction box is convenient to accommodate and transport, and the durability of a connecting structure is improved; the first magnetic control assembly used for installing the first electromagnet and the second magnetic control assembly used for installing the third electromagnet are fixedly assembled in the main box body, and the electromagnet is automatically controlled to be opened and closed through the internal current state, so that the safety is greatly improved after the fault or the circuit breaking occurs.

Description

High multichannel of security cuts off terminal box

Technical Field

The invention relates to the technical field of photovoltaic accessories, in particular to a multi-channel turn-off junction box with high safety.

Background

The turn-off junction box is a connecting device for protecting the solar photovoltaic module, is a connecting device between the solar cell array and the solar charging control device, and mainly aims to connect the electric power generated by the solar cell with an external circuit and conduct the current generated by the photovoltaic module. At present, the photovoltaic junction box on the market is mainly divided into a junction box body with multiple split bodies, the external and internal structures of the junction box body are single, the junction box body cannot be adjusted, the junction mode and the junction position of the junction box body and the photovoltaic module are limited, the junction box is inconvenient to store and transport, meanwhile, the junction box cannot be automatically turned on or off under special conditions, the safety performance is low, and the connection path is limited.

Disclosure of Invention

The invention aims to solve the technical problems that: in order to solve the problems in the prior art, the improved multi-channel shutdown junction box with high safety is provided, and the problems that the internal structure of the photovoltaic junction box on the market at present is single, the connection mode and the connection position of the photovoltaic junction box and the photovoltaic module are limited, the storage and the transportation are inconvenient, meanwhile, the automatic on-off of a circuit cannot be carried out under special conditions, the safety performance is low, and the connection channel is limited are solved.

The technical scheme adopted for solving the technical problems is as follows: the utility model provides a high multichannel shutoff terminal box of security, includes the main box body, first electro-magnet, second electro-magnet, third electro-magnet, the first cable conductor of first connector is connected at the top, the second cable conductor of second connector is connected at the top and the third cable conductor of third connector is connected at the top, the inside first upset chamber of accomodating, second upset chamber and the third upset chamber of accomodating of having seted up of main box body, main box body left side activity is equipped with the first upset dress piping that is used for connecting first cable conductor and the second upset dress piping that is used for connecting the second cable conductor, main box body right side activity is equipped with the third upset dress piping that is used for connecting the third cable conductor, the inside first magnetic control assembly that is used for installing first electro-magnet and second electro-magnet of fixed assembly between first upset dress piping and the second upset dress piping of main box body, the inside is located third upset dress piping one side fixed assembly and is equipped with the second magnetic control assembly that is used for installing the third electro-magnet.

The first upset fitting pipe, second upset fitting pipe and third upset fitting pipe link lateral surface on all seted up the side direction assembly through-hole, first upset is accomodate cavity, second upset and is accomodate cavity and third upset and accomodate cavity both sides inner wall on symmetry be provided with to the inside bellied inside fitting pipe of integrated structure of side direction assembly through-hole.

The first magnetic control assembly comprises a first assembly box fixed between the first overturning accommodating cavity and the second overturning accommodating cavity, a first telescopic pipe inserted into an inner assembly pipe on one side of the first assembly box, a second telescopic pipe inserted into an inner assembly pipe on the other side of the first assembly box, a first iron spring connected between the first electromagnet and the first telescopic pipe, and a second iron spring connected between the second electromagnet and the second telescopic pipe.

The second magnetic control assembly comprises a second assembly box fixed on the inner side surface of the third overturning and containing cavity, a third telescopic pipe inserted into an assembly pipe in one side of the second assembly box and a third iron extrusion spring inserted between the third electromagnet and the third telescopic pipe.

The first telescopic tube, the second telescopic tube and the third telescopic tube are close to the outer side wall of the lateral assembly through hole end and are provided with annular assembly grooves, metal extrusion rings controlled by external extrusion springs are elastically assembled on the outer sides of the annular assembly grooves, and angle locking tooth surfaces are arranged on the arc surfaces on the inner sides of the annular assembly grooves.

The inner side surfaces of the first overturning assembly pipe, the second overturning assembly pipe and the third overturning assembly pipe are positioned at the lateral assembly through holes and are provided with inward protruding inner extrusion fixing frames.

An annular meshing tooth slot matched with the angle locking tooth surface is formed in the inner side surface of the lateral assembly through hole.

The main box body is characterized in that a plurality of lateral functional grooves are formed in the outer side face of the main box body, a turnover wiring pipe used for lateral wiring is movably assembled in the lateral functional grooves, lateral mounting holes for built-in metal conducting plates are symmetrically formed in the inner walls of the two sides of the lateral functional grooves, the turnover wiring pipe comprises main pipe bodies with lateral connecting cannulas on the two sides, an internal thread external locking adjusting pipe movably sleeved on the outer side face of the main pipe body, an internal thread lateral telescopic adjusting pipe movably sleeved on the outer side of the lateral connecting cannulas, and an external thread telescopic locking pipe with one side coaxially fixed with a sliding plugging rod, an arc tightening plate with an external thread surface is arranged on the outer side end of the main pipe body, and matched annular transmission worm gears are arranged at the adjacent ends of the internal thread external locking adjusting pipe and the internal thread lateral telescopic adjusting pipe.

The lateral closing cover plate is fixedly clamped on the outer side face of the main box body.

Lateral internal thread through holes with locking bolts are formed in the outer side surfaces of the first overturning assembly pipe, the second overturning assembly pipe and the third overturning assembly pipe.

The beneficial effects of the invention are as follows:

(1) According to the multi-channel shut-off junction box with high safety, the first overturning accommodating cavity for installing the first overturning assembling pipe, the second overturning accommodating cavity for installing the second overturning assembling pipe and the third overturning accommodating cavity for installing the third overturning assembling pipe are formed in the junction box, so that the junction box can be completely accommodated in the junction box when in idle, the occupation of the external space of the junction box is reduced, the junction box is convenient to accommodate and transport, and the durability of a connecting structure is improved;

(2) The first magnetic control assembly used for installing the first electromagnet and the second magnetic control assembly used for installing the third electromagnet are fixedly arranged in the main box body, and the opening and closing of the electromagnets are automatically controlled through the internal current state, so that the automatic cutting-off is realized after the fault or the circuit breaking occurs, and the safety is greatly improved;

(3) The first magnetic control component and the second magnetic control component can control the on-off, can also carry out linkage locking on the angle of the overturning assembly pipe, so that the assembly angle of the overturning assembly pipe can be freely changed according to the assembly position, and the structure firmness after adjustment is more stable;

(4) Through set up the switching spool on the main box lateral surface, can promote the passageway quantity of terminal box greatly, can change the angle and the break-make state that its set up according to the installation needs moreover, the operation is very simple swift, and the security is also more excellent.

Drawings

The invention will be further described with reference to the drawings and examples.

Fig. 1 is a schematic structural view of the present invention.

Fig. 2 is a schematic view of the internal structure of the present invention.

Fig. 3 is a partial enlarged view of the position a in fig. 2.

Fig. 4 is a partial enlarged view of the position B in fig. 2.

Detailed Description

The invention will now be described in further detail with reference to the accompanying drawings. The drawings are simplified schematic representations which merely illustrate the basic structure of the invention and therefore show only the structures which are relevant to the invention.

In the description of the present invention, it should be noted that, unless explicitly specified and limited otherwise, the terms "connected," "connected," and "connected" are to be construed broadly, and may be either fixedly connected, detachably connected, or integrally connected, for example; can be mechanically or electrically connected; can be directly connected or indirectly connected through an intermediate medium. The specific meaning of the above terms in the present invention will be understood in specific cases by those of ordinary skill in the art.

The multi-channel shutdown junction box with high safety is shown in fig. 1, 2, 3 and 4, and comprises a main box body 1, a first electromagnet 2, a second electromagnet 3, a third electromagnet 4, a first cable 6 with the top connected with a first connector 5, a second cable 8 with the top connected with a second connector 7 and a third cable 10 with the top connected with a third connector 9, a first overturning accommodating chamber 11, a second overturning accommodating chamber 12 and a third overturning accommodating chamber 13 are formed in the main box body 1, a first overturning accommodating pipe 14 for connecting the first cable 6 and a second overturning accommodating pipe 15 for connecting the second cable 8 are movably assembled on the left side of the main box body 1, a third overturning accommodating pipe 16 for connecting the third cable 10 is movably assembled on the right side of the main box body 1, a first magnetic control component for installing the first electromagnet 2 and the second electromagnet 3 is fixedly assembled between the first overturning accommodating pipe 14 and the second overturning accommodating pipe 15, and a second magnetic control component for installing the third electromagnet 4 is fixedly assembled on one side of the third overturning accommodating pipe 16 in the main box body 1.

The first electromagnet 2, the second electromagnet 3 and the third electromagnet 4 are in the prior art, and are powered by current connected through a junction box.

For cooperation assembly, lateral assembly through holes 17 are formed in the outer side surfaces of the connecting ends of the first turnover assembly pipe 14, the second turnover assembly pipe 15 and the third turnover assembly pipe 16, and integral structure inner assembly pipes 18 protruding towards the inside of the lateral assembly through holes 17 are symmetrically arranged on the inner walls of the two sides of the first turnover storage chamber 11, the second turnover storage chamber 12 and the third turnover storage chamber 13.

The first flip-up fitting pipe 14, the second flip-up fitting pipe 15 and the third flip-up fitting pipe 16 are movably fitted to the main casing 1 through the side fitting through holes 17 fitted outside the inner fitting pipe 18.

In order to match the electromagnetic control of the first and second tipping tubes 14, 15, the first magnetic control assembly comprises a first assembly box 19 fixed between the first and second tipping storage chambers 11, 12, a first telescopic tube 20 inserted into one side of the first assembly box 19 and a second telescopic tube 21 inserted into the other side of the first assembly box 19, a first iron spring 22 connected between the first electromagnet 2 and the first telescopic tube 20, and a second iron spring 23 connected between the second electromagnet 3 and the second telescopic tube 21.

In order to cooperate with the electromagnetic control of the third flip-over mounting tube 16, the second magnetic control assembly comprises a second mounting box 24 fixed on the inner side surface of the third flip-over housing chamber 13, a third telescopic tube 25 inserted into the mounting tube inside one side of the second mounting box 24, and a third iron pressing spring 26 inserted between the third electromagnet 4 and the third telescopic tube 25.

The electromagnetic control principle is that the electromagnet is electrified, then the iron extrusion spring is driven to shrink, the iron extrusion spring drives the telescopic pipe to be inserted into the internal assembly pipe 18, and then the control passage and the angle lock.

In order to lock the angles while matching with the conduction, the outer side walls of the ends, close to the lateral assembly through holes 17, of the first telescopic tube 20, the second telescopic tube 21 and the third telescopic tube 25 are provided with annular assembly grooves 27, the outer sides of the annular assembly grooves 27 are elastically provided with metal extrusion rings 29 controlled by external extrusion springs 28, and the inner arc surfaces of the annular assembly grooves 27 are provided with angle locking tooth surfaces.

In order to avoid the impact of the first telescopic tube 20, the second telescopic tube 21 and the third telescopic tube 25 on the internal circuit, the safety is improved, and the inner side surfaces of the first tipping tube 14, the second tipping tube 15 and the third tipping tube 16 are provided with inward-protruding internal extrusion fixing frames 31 at the positions of the lateral assembly through holes 17.

For matching with the lateral locking, thereby achieving the purpose of fixing the angle, the inner side surface of the lateral assembly through hole 17 is provided with an annular meshing tooth groove 32 matched with the tooth surface of the angle locking.

In order to match and wire the outside, make it can form a plurality of passageways, offer 12 side direction functional groove 33 on the lateral surface of main box body 1, side direction functional groove 33 inside activity is equipped with the upset wiring pipe 34 that is used for side direction wiring, side mounting hole 36 of built-in metal conducting strip 35 has been offered to side direction functional groove 33 both sides inner wall symmetry, upset wiring pipe 34 includes the main body 38 that both sides have side connection intubate 37, the external locking control tube 39 of internal thread that the activity cup joints on the lateral surface of main body 38, the external screw thread side flexible control tube 40 of activity cup joints outside side connection intubate 37 and the external screw thread flexible locking tube 42 that one side coaxial is fixed with slip plug-in lever 41, set up the arc tightening plate 43 that the surface has the external screw thread face on the outside end of main body 38, the external locking control tube 39 of internal screw thread side flexible control tube 40 has matched annular drive worm wheel 44 on the adjacent end.

The outside of the internal thread external locking adjusting pipe 39 is provided with an external operation groove matched with a spanner, the external operation groove is controlled by controlling the internal thread external locking adjusting pipe 39 to horizontally slide outside the main pipe body 38, when the internal thread external locking adjusting pipe 39 is controlled to horizontally move inwards, the annular transmission worm wheel 44 on the internal thread external locking adjusting pipe 39 and the internal thread lateral expansion adjusting pipe 40 are mutually meshed for transmission, the internal thread lateral expansion adjusting pipe 40 is driven to rotate by rotating the internal thread external locking adjusting pipe 39, the internal thread lateral expansion adjusting pipe 40 drives the external thread expansion locking pipe 42 to expand and contract by rotating, the side mounting hole 36 is inserted in an extending mode, the angle of the whole turnover pipe 34 is locked, and meanwhile the metal conducting strip 35 is extruded by the external thread expansion locking pipe 42 to connect the inner surface of the arc-shaped tightening plate 43 with a circuit formed by the first turnover pipe 14, the second turnover pipe 15 and the third turnover pipe 16.

The internal thread external locking adjusting pipe 39 drives the arc tightening plates 43 to be inwards extruded through rotation, so that the openings on two sides of the arc tightening plates 43 are reduced, the pipe diameter inside the arc tightening plates 43 is reduced, and the cable is fixed inside, and the principle is the same as that of a common necking pipe on the market.

The metal conductive sheet 35 is connected in parallel with a circuit constituted by the first flip-mounting pipe 14, the second flip-mounting pipe 15, and the third flip-mounting pipe 16.

In order to close the open end, the inner safety and dust isolation performance are improved, and a lateral closing cover plate 45 is clamped and fixed on the outer side face of the main box body 1.

Flexible side cover plates can be arranged on two sides of the side closing cover plate 45 according to requirements, so that two side overturning openings can be conveniently closed, and overturning adjustment of the side overturning openings is not affected.

In order to connect and fix the first cable 6, the second cable 8 and the third cable 10 in a matching manner, lateral internal threaded through holes in which locking bolts 46 are arranged are formed in the outer side surfaces of the first tipping fitting pipe 14, the second tipping fitting pipe 15 and the third tipping fitting pipe 16.

The first, second or third cable wires 2, 8 or 10 are fixedly assembled by inserting the screw driver control locking bolt 46 into the lateral internal screw through hole.

The multi-channel shut-off junction box with high safety is internally provided with the first overturning accommodating chamber 11 for installing the first overturning assembling pipe 14, the second overturning accommodating chamber 12 for installing the second overturning assembling pipe 15 and the third overturning accommodating chamber 13 for installing the third overturning assembling pipe 16, so that the junction box can be completely accommodated inside when in idle, the occupation of the external space of the junction box is reduced, the accommodation and transportation are convenient, and the durability of a connecting structure is improved; a first magnetic control component used for installing a first electromagnet 2 and a second electromagnet 3 and a second magnetic control component used for installing a third electromagnet 4 are fixedly assembled in the main box body 1, and the opening and the closing of the electromagnets are automatically controlled through an internal current state, so that the automatic switching-off is realized after the fault or the circuit breaking occurs, and the safety is greatly improved; the first magnetic control component and the second magnetic control component can control the on-off, can also carry out linkage locking on the angle of the overturning assembly pipe, so that the assembly angle of the overturning assembly pipe can be freely changed according to the assembly position, and the structure firmness after adjustment is more stable; through set up switching spool 34 on main box body 1 lateral surface, can promote the passageway quantity of terminal box greatly, can change the angle and the break-make way state that its set up according to the installation needs moreover, the operation is very simple swift, and the security is also more excellent.

With the above-described preferred embodiments according to the present invention as an illustration, the above-described descriptions can be used by persons skilled in the relevant art to make various changes and modifications without departing from the scope of the technical idea of the present invention. The technical scope of the present invention is not limited to the description, but must be determined according to the scope of claims.

Claims (7)

1. The utility model provides a terminal box is shut down to multichannel that security is high, includes main box body (1), first electro-magnet (2), second electro-magnet (3), third electro-magnet (4), first cable conductor (6) that first connector (5) are connected at the top, second cable conductor (8) that second connector (7) are connected at the top and third cable conductor (10) that third connector (9) are connected at the top, characterized by: the inside first upset of accomodating cavity (11), second upset accomodating cavity (12) and third upset accomodate cavity (13) of having seted up of main box body (1), main box body (1) left side activity is equipped with first upset dress piping (14) that are used for connecting first cable conductor (6) and second upset dress piping (15) that are used for connecting second cable conductor (8), main box body (1) right side activity is equipped with third upset dress piping (16) that are used for connecting third cable conductor (10), the inside first magnet assembly that is used for installing first electro-magnet (2) and second electro-magnet (3) that is located of main box body (1) between first upset dress piping (14) and second upset dress piping (15), main box body (1) inside be located third upset dress piping (16) one side fixed mounting and be used for installing second magnet assembly of third electro-magnet (4), first upset dress piping (14), second upset dress piping (15) and third upset dress piping (16) are equipped with and are connected to set up the inside and are equipped with the first magnet assembly of first magnet assembly (13) of first electro-magnet assembly (3), second upset piping (16) side face up side direction and are connected to the inside first upset piping (17) and are connected to take in the inside and are accomodate cavity (17) and are provided with inside one side direction and are connected to take in the inside through-hole (17), the first magnetic control assembly comprises a first assembly box (19) fixed between a first overturning accommodating cavity (11) and a second overturning accommodating cavity (12), a first telescopic pipe (20) inserted into one side of the first assembly box (19) and a second telescopic pipe (21) inserted into the other side of the first assembly box (19), a first iron spring (22) connected between a first electromagnet (2) and the first telescopic pipe (20) and a second iron spring (23) connected between a second electromagnet (3) and the second telescopic pipe (21), wherein the second magnetic control assembly comprises a second assembly box (24) fixed on the inner side surface of a third overturning accommodating cavity (13), a third telescopic pipe (25) inserted into one side of the second assembly box (24) and a third iron extrusion spring (26) inserted between the third electromagnet (4) and the third telescopic pipe (25).

2. The high-safety multi-path shutdown junction box of claim 1, wherein: the telescopic device is characterized in that annular assembling grooves (27) are formed in the outer side walls, close to the lateral assembling through holes (17), of the first telescopic tube (20), the second telescopic tube (21) and the third telescopic tube (25), metal extrusion rings (29) controlled by external extrusion springs (28) are elastically assembled on the outer sides of the annular assembling grooves (27), and angle locking tooth surfaces are formed in the inner arc surfaces of the annular assembling grooves (27).

3. The high-safety multi-path shutdown junction box of claim 2, wherein: the inner side surfaces of the first tipping fitting pipe (14), the second tipping fitting pipe (15) and the third tipping fitting pipe (16) are positioned at the positions of the lateral fitting through holes (17) and are provided with inward-protruding inner extrusion fixing frames (31).

4. The high-safety multi-path shutdown junction box of claim 2, wherein: an annular meshing tooth slot matched with the angle locking tooth surface is formed in the inner side surface of the lateral assembly through hole (17).

5. The high-safety multi-path shutdown junction box of claim 1, wherein: a plurality of side direction function grooves (33) have been seted up on main box body (1) lateral surface, the inside movable fit in side direction function groove (33) has upset wiring pipe (34) that are used for the side direction wiring, side mounting hole (36) of built-in metal conducting strip (35) have been seted up to symmetry on the inner wall of side direction function groove (33) both sides, upset wiring pipe (34) are including the main pipe body (38) that the both sides have side connection intubate (37), the outside locking control tube (39) of internal thread that the activity cup jointed on main pipe body (38) lateral surface, the outside screw thread side direction flexible control tube (40) and one side coaxial fixed with slip plug-in pole (41) of activity cup joint in the outside connection intubate (37), arc tightening plate (43) that the surface has the external screw surface set up on the outside end of main pipe body (38), have matched with annular transmission worm wheel (44) on the adjacent end of outside screw thread outside locking control tube (39) and the inside screw thread side direction flexible control tube (40).

6. The high-safety multi-path shutdown junction box of claim 1, wherein: the lateral closing cover plate (45) is fixedly clamped on the outer side face of the main box body (1).

7. The high-safety multi-path shutdown junction box of claim 1, wherein: lateral internal thread through holes with locking bolts (46) are formed in the outer side surfaces of the first tipping fitting pipe (14), the second tipping fitting pipe (15) and the third tipping fitting pipe (16).

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