CN220475723U

CN220475723U - Photovoltaic controller wiring structure

Info

Publication number: CN220475723U
Application number: CN202321772038.1U
Authority: CN
Inventors: 李振阳; 黄鹏飞; 周丽丽; 李涛; 张健; 胡博伟
Original assignee: Yuan Tao Communications Ltd By Share Ltd
Current assignee: Yuan Tao Communications Ltd By Share Ltd
Priority date: 2023-07-05
Filing date: 2023-07-05
Publication date: 2024-02-09
Anticipated expiration: 2033-07-05

Abstract

The utility model provides a wiring structure of a photovoltaic controller, and relates to the technical field of photovoltaic junction boxes. The electric connector comprises a junction box, wherein an inlet and an outlet are formed in one side of the junction box, a cover body for shielding the inlet and the outlet is arranged on the junction box, 3 conductors are arranged at the bottom of the junction box, 3 cables which are respectively and electrically connected with at least 3 conductors are arranged in the junction box, the 3 cables are connected in parallel and then pass through the junction box to extend outwards, a junction body matched with the conductor is detachably arranged on the conductor, and part of the junction body is arranged outside the junction box; the damage part is convenient to replace independently after the corresponding connection point is damaged, the later maintenance is facilitated, and the maintenance efficiency is improved.

Description

Photovoltaic controller wiring structure

Technical Field

The utility model relates to the technical field of photovoltaic junction boxes, in particular to a photovoltaic controller wiring structure.

Background

The photovoltaic controller is an important component of the photovoltaic module, is automatic control equipment for controlling the charging of the storage battery by the multi-path solar cell array and the power supply of the storage battery to the load of the solar inverter, and plays a role in transmitting current after being electrically connected with the photovoltaic solar panel and the storage battery through cables, so that the operation of the multi-photovoltaic structure is convenient to manage.

When the solar panels in the multi-path solar cell array are electrically connected with the photovoltaic controllers in the prior art, two ends of a cable need to be respectively connected between the multi-path solar panels and the photovoltaic controllers on site; moreover, the photovoltaic junction box is commonly adopted to realize connection of the photovoltaic junction box and the bus bar in the photovoltaic junction box, but the connection mode of the bus bar in the photovoltaic junction box adopts a glue filling mode because the internal space of the box body is small, and welding is needed, so that the glue filling type photovoltaic junction box is inconvenient to overhaul when damaged in the interior and the inside, the damaged reason cannot be determined, and the whole investigation or the whole replacement is needed, so that certain potential safety hazards always exist.

Disclosure of Invention

The utility model aims to provide a wiring structure of a photovoltaic controller, which can solve the problems of the prior art.

The technical scheme of the application is realized as follows:

the utility model provides a photovoltaic controller wiring structure, including the terminal box, exit has been seted up to one side of terminal box, is equipped with the lid that shields exit on the terminal box, and the box bottom of terminal box is equipped with a plurality of electric conductors, is equipped with a plurality of cables that are connected with a plurality of electric conductors electricity respectively in the terminal box, wears to locate the terminal box after a plurality of cables are parallelly connected outside extending, can dismantle on the electric conductor and be equipped with the connector rather than the adaptation, and the part of connector is arranged in outside the terminal box.

In some technical schemes of the utility model, a through groove is formed on the outer wall of the conductor, a limiting block arranged in the through groove is arranged on the wiring body, and a limiting component for limiting the movement of the limiting block is arranged in the through groove.

In some technical schemes of the utility model, two opposite inner walls of the through groove are respectively provided with a limiting groove, and the limiting block is provided with a locking block matched with the limiting groove.

In some technical schemes of the utility model, the limiting component comprises a limiting rod, a mounting cavity is formed in the conductor, the limiting rod is arranged in the mounting cavity in a sliding manner, the limiting rod is arranged in the through groove after penetrating through the mounting cavity, a groove matched with the limiting rod is formed in the end face of the limiting block, which is opposite to the through groove, of the limiting block, a sliding groove communicated with the mounting cavity is formed in the outer side wall of the conductor, a sliding block connected with the limiting rod is arranged in the sliding groove, a limiting spring is arranged at one end, far away from the through groove, of the mounting cavity, and the limiting spring is in butt joint with the sliding block.

In some embodiments of the utility model, the conductor and the connection body are provided with connection sleeves with variable cross sections.

In some technical schemes of the utility model, a sealing ring is arranged on the side surface of the cover body, which is contacted with the junction box, and a sealing groove matched with the junction box is arranged on the end surface of the junction box.

In some technical schemes of the utility model, a sealing sleeve is sleeved on the outer side wall of the junction body, and the sealing sleeve is detachably connected with the outer side wall of the junction box.

In some embodiments of the utility model, the sealing sleeve is a cold shrink sealing sleeve.

Compared with the prior art, the embodiment of the utility model has at least the following advantages or beneficial effects:

the junction box is integrally formed through an injection molding process, the inside of the junction box is hollow, the shape of the junction box can be rectangular or elliptical revolving body shape or circular revolving body shape or other special-shaped structures, the cover body is fixed on the end face of one side of the junction box with an opening through a screw, and the cover body is provided with an inner flange arranged in the junction box, so that the sealing performance between the junction box and the cover body can be improved, and the junction box is convenient for later maintenance; the conductor is fixed at the box bottom of the junction box through an insulating plastic buckle or an insulating ceramic buckle matched screw, and a cable connected with the conductor is fixed through the screw; then pass the terminal body and offer the business turn over hole on terminal box lateral wall in advance, and the internal diameter of business turn over hole is greater than the external diameter of terminal body, the later stage installation of being convenient for still is favorable to following alone after corresponding tie point damage to trade damage part, so set up can be after corresponding pencil tie point appears damaging, can be timely dismantle the terminal body and the electric conductor of dismantling the connection, improves the efficiency of maintaining.

The sliding block is pressed to force the sliding block to be extruded and arranged at one end of the installation cavity far away from the through groove, and the limiting spring is compressed at the moment, the sliding block drives the limiting rod to gradually retract into the installation cavity, the end part of the limiting rod is flush with the bottom of the through groove, and at the moment, the limiting block on the wiring body and the locking block arranged on the limiting block can be embedded into the groove; after the operation is finished, the sliding block can be not pressed, the limiting rod is pushed by the limiting spring to be placed in the groove formed in the end face of the limiting block, so that the limiting rod and the wiring body can be locked, the phenomenon that the electric conductor and the wiring body are separated from each other is avoided, and the limiting block can be prevented from sliding down from the through groove after being matched with the through groove for a long time, so that the electric conductivity of the two components is affected.

The part of the sealing sleeve is embedded in the arc-shaped groove on the outer side wall of the junction box, then the sealing sleeve is in threaded connection with the inner wall of the arc-shaped groove, and the inner diameter of the sealing sleeve is larger than the outer diameter of the junction body, so that the sealing sleeve and the junction box are convenient to install; the cable connected with the wiring body can be wrapped together with the wiring body by the sealing sleeve with the inner diameter reduced after being heated and contracted; the contact of rainwater to the junction body and the cable junction can be avoided, and rainwater can be prevented from entering the junction box along the cable.

Drawings

In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings that are needed in the embodiments will be briefly described below, it being understood that the following drawings only illustrate some embodiments of the present utility model and therefore should not be considered as limiting the scope, and other related drawings may be obtained according to these drawings without inventive effort for a person skilled in the art.

FIG. 1 is a schematic perspective view of the present utility model;

FIG. 2 is a schematic elevational cross-sectional view of the present utility model;

FIG. 3 is a top cross-sectional combined schematic view of the present utility model;

fig. 4 is a schematic perspective view of a wiring body and an electric conductor in the present utility model.

Icon: 1. a cover body; 2. a junction box; 3. sealing sleeve; 4. an insulating base; 5. a junction sleeve; 6. a wiring body; 7. an electric conductor; 8. a limit rod; 9. a sliding block; 10. a limit spring; 11. a cable; 12. and (3) a cable.

Detailed Description

For the purpose of making the objects, technical solutions and advantages of the embodiments of the present utility model more apparent, the technical solutions of the embodiments of the present utility model will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present utility model, and it is apparent that the described embodiments are some embodiments of the present utility model, but not all embodiments of the present utility model. The components of the embodiments of the present utility model generally described and illustrated in the figures herein may be arranged and designed in a wide variety of different configurations.

Thus, the following detailed description of the embodiments of the utility model, as presented in the figures, is not intended to limit the scope of the utility model, as claimed, but is merely representative of selected embodiments of the utility model. All other embodiments, which can be made by those skilled in the art based on the embodiments of the utility model without making any inventive effort, are intended to be within the scope of the utility model.

It should be noted that: like reference numerals and letters denote like items in the following figures, and thus once an item is defined in one figure, no further definition or explanation thereof is necessary in the following figures.

Examples

Please refer to fig. 1-4.

The utility model provides a photovoltaic controller wiring structure, including terminal box 2, import and export has been seted up to one side of terminal box 2, be equipped with on the terminal box 2 and shield the lid 1 of import and export, the box bottom of terminal box 2 is equipped with a plurality of electric conductors 7, be equipped with in the terminal box 2 with 3 cables 11 that 3 electric conductors 7 are connected respectively electricity, 3 cables 11 wear to locate terminal box 2 back outside extension after parallelly connected, can dismantle on the electric conductor 7 and be equipped with the terminal body 6 rather than the adaptation, outside terminal box 2 is arranged in to the part of terminal body 6. The wiring structure of the photovoltaic controller, which is arranged in the technical scheme, mainly solves the problems that in the prior art, when a solar panel in a multi-path solar cell array is electrically connected with the photovoltaic controller, two ends of a cable are required to be respectively connected between the multi-path solar panel and the photovoltaic controller on site, and the operation is troublesome; although the photovoltaic junction box 2 is adopted to realize the connection of the two in the prior art, the connection mode of the bus bars in the photovoltaic junction box 2 damages the follow-up replacement of the whole body, which is not beneficial to the later maintenance; in order to solve the problems, the terminal box 2 is integrally formed through an injection molding process, the inside of the terminal box 2 is hollow, the appearance of the terminal box 2 can be rectangular or elliptical revolving body or circular revolving body or other special-shaped structures, the cover body 1 is fixed on the end face of one side of the terminal box 2 with an opening through screws, and the cover body 1 is provided with an inner flange arranged in the terminal box 2, so that the tightness between the terminal box 2 and the terminal box can be improved, and the terminal box is convenient for later maintenance; the electric conductor 7 is fixed at the box bottom of the junction box 2 through an insulating base 4 (an insulating plastic buckle or an insulating ceramic buckle) in cooperation with a screw, and a cable connected with the electric conductor 7 is fixed through the screw; then pass terminal body 6 in advance and offer the business turn over hole on terminal box 2 lateral wall, and the internal diameter of business turn over hole is greater than terminal body 6's external diameter, the later stage installation of being convenient for, so set up can be after the pencil that corresponds appears damaging, can be timely dismantle terminal body 6 and electric conductor 7 that can dismantle the connection, improve the efficiency of maintaining.

Furthermore, can set up the sealant between terminal body 6 and business turn over hole, can further avoid the rainwater to invade in the terminal box 2, cause terminal body 6 and electric conductor 7 to appear the poor problem emergence of contact.

In some technical schemes of the utility model, a through groove is formed on the outer wall of the conductor 7, a limiting block arranged in the through groove is arranged on the wiring body 6, and a limiting component for limiting the movement of the limiting block is arranged in the through groove. Through the structure, the limiting block integrally formed with the wiring body 6 can be embedded in the through groove of the conductor 7, and the limiting block is abutted with the inner wall of the through groove; and the limiting component can avoid the limiting block sliding down from the through groove after being matched with the through groove for a long time, and the conductive performance of the limiting block and the through groove during matching is affected.

In some technical schemes of the utility model, two opposite inner walls of the through groove are respectively provided with a limiting groove, and the limiting block is provided with a locking block matched with the limiting groove. The contact area of the wiring body 6 and the conductor 7 can be increased by the arrangement, so that the problem that the conductivity is reduced due to poor contact is avoided, the friction force of the limiting block in the through groove can be increased by the arrangement, and the connection strength of the limiting block and the through groove can be improved.

In some technical schemes of the utility model, the limiting component comprises a limiting rod 8, a mounting cavity is formed in a conductor 7, the limiting rod 8 is arranged in the mounting cavity in a sliding manner, the limiting rod 8 is arranged in a through groove after penetrating through the mounting cavity, a groove matched with the limiting rod 8 is formed in the end face of the limiting block, which is opposite to the through groove, of the limiting block, a sliding groove communicated with the mounting cavity is formed in the outer side wall of the conductor 7, a sliding block 9 connected with the limiting rod 8 is arranged in the sliding groove, a limiting spring 10 is arranged at one end, far away from the through groove, of the mounting cavity, and the limiting spring 10 is in butt joint with the sliding block 9. The sliding block 9 and the limiting rod 8 are fixed by screws or welded and formed, and the part of the limiting spring 10 is embedded in an embedded groove formed in the sliding block 9, so that the sliding block 9 and the limiting spring are prevented from being separated. The principle of limiting the conductor 7 and the wiring body 6 by the limiting component is as follows: firstly, the sliding block 9 is pressed to force the sliding block 9 to be extruded and arranged at one end of the installation cavity far away from the through groove, and at the moment, the limiting spring 10 is compressed, the sliding block 9 drives the limiting rod 8 to gradually retract into the installation cavity, the end part of the limiting rod 8 is flush with the bottom of the through groove, and at the moment, the limiting block on the wiring body 6 and the locking block arranged on the limiting block can be embedded into the groove; after the operation is finished, the sliding block 9 can be not pressed, and the limiting rod 8 is pushed by the limiting spring 10 to be placed in the groove formed in the end face of the limiting block, so that the two can be locked, the phenomenon that the conductor 7 and the wiring body 6 are separated from each other is avoided, and the limiting block slides out of the through groove after being matched with the through groove for a long time, so that the conductivity of the two is influenced.

In some embodiments of the utility model, the conductor 7 and the connection body 6 are each provided with a connection sleeve 5 with a variable cross section. The wire connecting sleeve 5 is integrally formed with the conductor 7 or the wire connecting body 6 in a welding mode, the wire connecting body 6 and the conductor 7 are solid cylinders, the wire connecting sleeve is made of cylindrical columns with good conductivity, and the wire connecting sleeve 5 is hollow and cylindrical with one closed end and one open end; the wire connection sleeve 5 is made of an aluminum material which is easy to deform in a metal material, so that the cross section of the wire connection sleeve 5 is conveniently changed by a spanner or pliers in the later period, and therefore a cable is fixed in the wire connection sleeve 5, and the connection strength of the cable and the wire connection sleeve is improved.

In some technical solutions of the present utility model, a sealing ring is arranged on the side surface of the cover body 1, which contacts the junction box 2, and a sealing groove adapted to the junction box 2 is arranged on the end surface of the junction box 2. Can improve the leakproofness between the two, avoid the rainwater to invade in the terminal box 2 along lid 1 and the gap of terminal box 2 and cause electric conductor 7 and the corrosion of terminal body 6 to appear, influence the conductive properties of this connector.

In some technical solutions of the present utility model, the outer side wall of the junction body 6 is sleeved with the sealing sleeve 3, and the sealing sleeve 3 is detachably connected with the outer side wall of the junction box 2. The sealing sleeve 3 is a rubber sleeve, can shrink after being heated, and is partially embedded in an arc-shaped groove on the outer side wall of the junction box 2, then the sealing sleeve 3 is in threaded connection with the inner wall of the arc-shaped groove, and the inner diameter of the sealing sleeve 3 is larger than the outer diameter of the junction body 6, so that the sealing sleeve 3 and the junction box are convenient to install; the sealing sleeve 3 with the smaller inner diameter after being heated and contracted can wrap the cable 12 connected with the wiring body 6 and the wiring body 6 together; the contact of rainwater to the junction of the junction body 6 and the cable 12 can be avoided, and the rainwater can be prevented from entering the junction box 2 along the cable 12.

In some embodiments of the present utility model, the sealing sleeve 3 is a cold shrink sealing sleeve 3 tube. The cable 12 connected with the wiring body 6 can be wrapped together with the wiring body 6, so that rainwater can be prevented from contacting the junction of the wiring body 6 and the cable 12, and rainwater can be prevented from entering the junction box 2 along the cable 12; the cold shrink sealing sleeve 3 is a silicone rubber cold shrink sleeve.

The above is only a preferred embodiment of the present utility model, and is not intended to limit the present utility model, but various modifications and variations can be made to the present utility model by those skilled in the art. Any modification, equivalent replacement, improvement, etc. made within the spirit and principle of the present utility model should be included in the protection scope of the present utility model.

Claims

1. The utility model provides a photovoltaic controller wiring structure, its characterized in that, includes the terminal box, import and export has been seted up to one side of terminal box, be equipped with the lid that covers import and export on the terminal box, the box bottom of terminal box is equipped with a plurality of electric conductors, be equipped with in the terminal box with a plurality of cables that electric conductor is connected respectively, a plurality of the cable is worn to locate behind the parallelly connected terminal box back outwards extends, can dismantle on the electric conductor and be equipped with the connector rather than the adaptation, the part of connector is arranged in outside the terminal box.

2. The wiring structure of a photovoltaic controller according to claim 1, wherein a through groove is formed in the outer wall of the conductor, a limiting block arranged in the through groove is arranged on the wiring body, and a limiting component for limiting movement of the limiting block is arranged in the through groove.

3. The wiring structure of a photovoltaic controller according to claim 2, wherein two opposite inner walls of the through groove are provided with limiting grooves, and the limiting block is provided with a locking block adapted to the limiting grooves.

4. The photovoltaic controller wiring structure according to claim 2, wherein the limiting assembly comprises a limiting rod, an installation cavity is formed in the conductor, the limiting rod is slidably arranged in the installation cavity, the limiting rod is arranged in the through groove in a penetrating mode after penetrating through the installation cavity, a groove matched with the limiting rod is formed in the end face, opposite to the through groove, of the limiting block, a sliding groove communicated with the installation cavity is formed in the outer side wall of the conductor, a sliding block connected with the limiting rod is arranged in the sliding groove, a limiting spring is arranged at one end, far away from the through groove, of the installation cavity, and the limiting spring is in butt joint with the sliding block.

5. A photovoltaic controller wiring structure according to any one of claims 1 to 4, wherein the conductor and the wiring body are each provided with a wiring sleeve of variable cross section.

6. The photovoltaic controller wiring structure according to claim 1, wherein a sealing ring is arranged on a side surface of the cover body, which is in contact with the junction box, and a sealing groove matched with the junction box is arranged on an end surface of the junction box.

7. The photovoltaic controller wiring structure according to claim 1, wherein a sealing sleeve is sleeved on the outer side wall of the wiring body, and the sealing sleeve is detachably connected with the outer side wall of the wiring box.

8. The photovoltaic controller wiring structure of claim 7, wherein the sealing sleeve is a cold shrink sealing sleeve.