CN208257766U

CN208257766U - A kind of waterproof sealing formula photovoltaic junction box

Info

Publication number: CN208257766U
Application number: CN201821549093.3U
Authority: CN
Inventors: 文钦鹏
Original assignee: Individual
Current assignee: Individual
Priority date: 2018-09-24
Filing date: 2018-09-24
Publication date: 2018-12-18
Anticipated expiration: 2028-09-24

Abstract

The utility model discloses a kind of waterproof sealing formula photovoltaic junction boxes, including box body, box cover and fixing bolt, box side wall upper surface offers the first annular groove and the second annular groove from inside to outside, second sealing ring of box cover lower end setting is fitted closely with the first sealing ring in the first annular groove, and box cover is fixed on cassette upper end by fixing bolt；Second annular groove is provided with the second heat release hole and the first heat release hole towards the inward-outward direction of box body respectively, and the second heat release hole interlocks with the first heat dissipation hole site, and is additionally provided with sponge block in the second annular groove.The beneficial effects of the utility model are: the first sealing ring and the second sealing ring make to seal between box cover and box body, and box cover can be dismantled from cassette upper end, extraneous air-flow can pass sequentially through the first heat release hole, the second annular groove and the second heat release hole and enter in box body simultaneously, and the rainwater in air-flow can be discharged from drainage hole or be absorbed by sponge block.

Description

Waterproof sealing formula photovoltaic terminal box

Technical Field

The utility model relates to a photovoltaic terminal box technical field specifically is a waterproof sealing formula photovoltaic terminal box.

Background

With the continuous development of social economy, people pay more and more attention to the development and utilization of green clean energy, solar energy is used as common green energy in daily life of people, and is absorbed and converted into electric energy through a photovoltaic system to be used by people in daily life.

The most structure of present terminal box is comparatively simple, because the operational environment of terminal box is mostly outdoor, consequently, require the terminal box to possess good waterproof performance, and because the inside electronic component of terminal box is more, the during operation can produce a large amount of heats, require the terminal box to possess good heat dispersion again, but present terminal box heat dispersion and waterproof performance can not have simultaneously when the design, if heat dispersion is good then can lead to sealed waterproof performance relatively poor, if sealed waterproof performance is better then can lead to the air in the terminal box not to circulate, heat dispersion is relatively poor.

Simultaneously some terminal boxes adopt the method of direct welding or gluing to seal in the installation of box body and lid when the equipment, make with box body and lid equipment back undetachable, influence the maintenance when terminal box internal element breaks down, for this reason, the utility model provides a waterproof sealing formula photovoltaic terminal box.

Disclosure of Invention

An object of the utility model is to provide a waterproof sealing formula photovoltaic terminal box to solve the problem that proposes in the above-mentioned background art.

A waterproof sealing type photovoltaic junction box comprises a box body, a box cover and a fixing bolt, wherein a first annular groove and a second annular groove are formed in the upper surface of the side wall of the box body, the depth of the first annular groove is smaller than that of the second annular groove, the second annular groove is positioned outside the first annular groove, a first sealing ring is arranged in the first annular groove, a second sealing ring is arranged at the lower end of the box cover, the second sealing ring is sleeved in the first annular groove and is tightly attached to the first sealing ring, a plurality of connecting columns are vertically arranged in the box body, the number of the connecting columns is four, the four connecting columns are uniformly distributed around the center of the box body, a threaded blind hole is formed in the upper end of each connecting column, a second through hole is formed in the box cover at the upper end of the; first heat dissipation holes are formed in second ring grooves in four side faces of the box body, the second heat dissipation holes are formed in the second ring grooves at two ends of the first heat dissipation holes, the positions of the first heat dissipation holes and the second heat dissipation holes are staggered, a drain hole is formed in the bottom of the second ring groove in the first heat dissipation holes, the position of the drain hole is formed in the bottom of the second ring groove opposite to the first heat dissipation holes, and sponge blocks are arranged in the second ring groove between the first heat dissipation holes and the second heat dissipation holes.

Preferably, a plurality of first through-hole has been seted up to one side of box body, install the conduit in the first through-hole, pass the cable in the conduit, be located the outer fixed mounting of cable of conduit outer end has the sealing rubber piece, the sealing rubber piece cross-section is most advanced direction towards the inside toper of box body, and the diameter of sealing rubber piece rear end is greater than the diameter of conduit tube hole, the outer fixed thread cover of cable is located to conduit outer end spiro union, and the vertical part of fixed thread cover closely laminates with the outer end of sealing rubber piece, and the sealing rubber piece can be with the conduit internal seal, prevents that the rainwater from getting into the box body from conduit, and fixed thread cover can be with the rigidity of sealing rubber piece.

Preferably, install binding post in the box body, binding post is the copper sheet, binding post passes through set screw and installs in the box body, the dismantlement of binding post of being convenient for, binding post's one end and diode connection, binding post's the other end and cable junction.

Preferably, a third sealing ring is arranged between the bolt head of the fixing bolt and the upper surface of the box cover, so that rainwater is prevented from entering the box body from the second through hole.

Preferably, the two side walls in the second annular groove are provided with grooves, the two ends of the sponge block are sleeved in the grooves, the sponge block is fixed in the second annular groove conveniently, and the sponge block is taken out of and mounted in the second annular groove.

Preferably, the connecting plates are installed on two sides of the box body, and the connecting plates are provided with mounting holes, so that the box body can be conveniently installed.

Preferably, the outer edge of the box cover extends out of the box body, so that the box cover can be conveniently lifted from the upper end of the box body.

Compared with the prior art, the beneficial effects of the utility model are that: the utility model discloses the structure setting of waterproof sealing formula photovoltaic terminal box, make between lid and the box body sealed, and the lid can be followed the box body upper end and dismantled, external air current can be followed first louvre entering second annular simultaneously in, the air current flows in the second annular groove and gets into in the box body from the second louvre behind the sponge piece, if smuggle the rainwater secretly in the air current, the rainwater can directly flow out from the second annular groove through the wash port, steam in the air current can be absorbed by the sponge piece, make the inside air current that can circulate of box body, realize quick heat dissipation, can also prevent simultaneously that steam and rainwater from getting into the box body, compare and possess good heat dispersion and waterproof performance in prior art. Wherein,

the first ring groove and the second ring groove are formed in the upper surface of the side wall of the box body from inside to outside, a first sealing ring is arranged in the first ring groove, a second sealing ring arranged at the lower end of the box cover is tightly attached to the first sealing ring, a plurality of connecting columns with threaded blind holes formed in the upper ends are vertically arranged in the box body, a second through hole is formed in the box cover positioned at the upper end of the threaded blind hole, and a fixing bolt penetrates through the second through hole to be screwed in the threaded blind hole, so that the box cover can be firmly fixed at the upper end of the box body after the fixing bolt is screwed, and the second sealing ring is tightly attached to the first sealing ring, so that the mounting and dismounting between the;

the first heat dissipation holes are arranged towards the outside of the box body in the second ring grooves on the four sides of the box body, the second heat dissipation holes are arranged in the second ring grooves at the two ends of the first heat dissipation holes, the drain holes are arranged at the bottoms of the second ring grooves opposite to the first heat dissipation holes, sponge blocks are arranged in the second ring grooves between the first heat dissipation holes and the second heat dissipation holes, so that external air flow can enter the second ring grooves through the first heat dissipation holes and flow in the second ring grooves and then enter the box body through the second heat dissipation holes, the air flow flows along the fold line in the process of entering the box body, rainwater in the air flow can be deposited at the bottom in the second ring grooves and is discharged through the drain holes when the air flow impacts the inner walls of the second ring grooves, and water vapor in the air flow can be absorbed by the sponge blocks arranged between the first heat dissipation holes and the second heat dissipation holes, the sponge block can be directly taken out and replaced after the box cover is opened from the upper end of the box body.

Drawings

Fig. 1 is a top view of the present invention;

FIG. 2 is a top view of the box body of the present invention;

FIG. 3 is a sectional view of the front view structure of the present invention;

fig. 4 is a sectional view of the structure of the conduit of the present invention.

In the figure: 1. the box body, 101, first annular, 102, the second annular, 103, first louvre, 104, the second louvre, 105, the wash port, 106, first through-hole, 107, the recess, 2, the lid, 201, the second through-hole, 3, first sealing washer, 4, the second sealing washer, 5, the spliced pole, 501, screw blind hole, 6, fixing bolt, 7, the third sealing washer, 8, the connecting plate, 801, the mounting hole, 9, the sponge piece, 10, the wire conduit, 11, the cable, 12, the sealing rubber piece, 13, fixed thread bush, 14, binding post, 15, the diode, 16, set screw.

Detailed Description

The technical solutions in the embodiments of the present invention will be described clearly and completely with reference to the accompanying drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only some embodiments of the present invention, not all embodiments. Based on the embodiments in the present invention, all other embodiments obtained by a person skilled in the art without creative work belong to the protection scope of the present invention.

Referring to fig. 1-4, a waterproof sealing type photovoltaic junction box comprises a box body 1, a box cover 2 and a fixing bolt 6, wherein a junction terminal 14 is installed in the box body 1, the junction terminal 14 is a copper sheet, the junction terminal 14 is installed in the box body 1 through a fixing screw 16, so that the junction terminal 14 is convenient to detach, one end 14 of the junction terminal is connected with a diode 15, and the other end of the junction terminal 14 is connected with a cable 11; connecting plates 8 are arranged on two sides of the box body 1, and mounting holes 801 are formed in the connecting plates 8, so that the box body 1 can be mounted conveniently; the upper surface of the side wall of the box body 1 is provided with a first annular groove 101 and a second annular groove 102, the depth of the first annular groove 101 is smaller than that of the second annular groove 102, the second annular groove 102 is positioned outside the first annular groove 101, a first sealing ring 3 is arranged in the first annular groove 101, the lower end of the box cover 2 is provided with a second sealing ring 4, the second sealing ring 4 is sleeved in the first annular groove 101 and is tightly attached to the first sealing ring 3, the outer edge of the box cover 2 extends out of the box body 1, and the box cover 2 is convenient to open from the upper end of the box body 1; a plurality of connecting columns 5 are vertically arranged in the box body 1, threaded blind holes 501 are formed in the upper ends of the connecting columns 5, second through holes 201 are formed in the box cover 2 located at the upper ends of the threaded blind holes 501, the fixing bolts 6 penetrate through the second through holes 201 to be screwed in the threaded blind holes 501, and third sealing rings 7 are arranged between the bolt heads of the fixing bolts 6 and the upper surface of the box cover 2 to prevent rainwater from entering the box body 1 from the second through holes 201; after the fixing bolt 6 is screwed down, the box cover 2 can be firmly fixed at the upper end of the box body 1, and the second sealing ring 4 is tightly attached to the first sealing ring 3, so that the box body 1 and the box cover 2 can be conveniently mounted and dismounted, and the sealing between the box body 1 and the box cover 2 can be ensured.

The second ring grooves 102 on four sides of the box body 1 are internally provided with first heat dissipation holes 103 towards the outside of the box body 1, the second ring grooves 102 at two ends of the first heat dissipation holes 103 are internally provided with second heat dissipation holes 104 towards the inside of the box body 1, the bottom of the second ring groove 102 inside the first heat dissipation holes 103 is provided with a drain hole 105, the drain hole 105 is positioned at the bottom of the second ring groove 102 opposite to the first heat dissipation holes 103 inwards, a sponge block 9 is arranged in the second ring groove 102 between the first heat dissipation holes 103 and the second heat dissipation holes 104, two side walls in the second ring groove 102 are provided with grooves 107, two ends of the sponge block 9 are sleeved in the grooves 107, so that the sponge block 9 can be conveniently fixed in the second ring groove 102 and can be taken out and installed from the second ring groove 102; external air flow can enter the second annular groove 102 through the first heat dissipation holes 103 and flow in the second annular groove 102 and then enter the box body 1 through the second heat dissipation holes 104, the air flow flows along the broken line in the process of entering the box body 1, rainwater in the air flow can be deposited at the bottom in the second annular groove 102 and discharged through the water discharge holes 105 when the air flow impacts the inner wall of the second annular groove 102, water vapor in the air flow can be absorbed by the sponge block 9 arranged between the first heat dissipation holes 103 and the second heat dissipation holes 104, and the sponge block 9 can be directly taken out and replaced after the box cover 2 is opened from the upper end of the box body 1.

The utility model discloses a rainwater drainage box, including box body 1, first through-hole 106 of a plurality of is seted up to one side of box body 1, install conduit 10 in the first through-hole 106, pass cable 11 in the conduit 10, be located the outer fixed mounting of cable 11 of conduit 10 outer end has sealing rubber block 12, sealing rubber block 12 cross-section is most advanced direction towards the inside toper of box body 1, and the diameter of sealing rubber block 12 rear end is greater than the diameter of conduit 10 tube hole, the threaded sleeve 13 of fixing that the cover was located cable 11 outside has been cup jointed to conduit 10 outer end spiro union, and the vertical portion of fixed threaded sleeve 13 closely laminates with the outer end of sealing rubber block 12, and sealing rubber block 12 can be with conduit 10 internal seal, prevents that the rainwater from entering box body 1 from conduit 10 department, and fixed threaded sleeve 13 can be with the position of sealing rubber block 12 fixed.

The working principle is as follows: the utility model discloses when using, connect the installation with box body 1 through connecting plate 8, can get into in second annular groove 102 and flow in second annular groove 102 through first louvre 103 at the external air current of during operation, get into in box body 1 through second louvre 104 at last, take away the heat that produces in the box body 1 interior electronic component during operation, the air current is flowing along the broken line in the process that gets into in box body 1, make the rainwater in the air current can deposit in second annular groove 102 bottom and discharge through wash port 105 when the air current strikes second annular groove 102 inner wall, steam in the air current can be absorbed by the sponge piece 9 that sets up between first louvre 103 and the second louvre 104, make the terminal box both possess waterproof performance and have good heat dispersion again.

It is obvious to a person skilled in the art that the invention is not restricted to details of the above-described exemplary embodiments, but that it can be implemented in other specific forms without departing from the spirit or essential characteristics of the invention. The present embodiments are therefore to be considered in all respects as illustrative and not restrictive, the scope of the invention being indicated by the appended claims rather than by the foregoing description, and all changes which come within the meaning and range of equivalency of the claims are therefore intended to be embraced therein. Any reference sign in a claim should not be construed as limiting the claim concerned.

Furthermore, it should be understood that although the present description refers to embodiments, not every embodiment may contain only a single embodiment, and such description is for clarity only, and those skilled in the art should integrate the description, and the embodiments may be combined as appropriate to form other embodiments understood by those skilled in the art.

Claims

1. The utility model provides a waterproof sealing formula photovoltaic terminal box, includes box body (1), lid (2) and fixing bolt (6), its characterized in that: the improved box is characterized in that a first annular groove (101) and a second annular groove (102) are formed in the upper surface of the side wall of the box body (1), the second annular groove (102) is located outside the first annular groove (101), a first sealing ring (3) is arranged in the first annular groove (101), a second sealing ring (4) is arranged at the lower end of the box cover (2), the second sealing ring (4) is sleeved in the first annular groove (101) and tightly attached to the first sealing ring (3), a plurality of connecting columns (5) are vertically arranged in the box body (1), threaded blind holes (501) are formed in the upper ends of the connecting columns (5), second through holes (201) are formed in the box cover (2) located at the upper ends of the threaded blind holes (501), and fixing bolts (6) penetrate through the second through holes (201) and are in threaded blind holes (501) in;

first heat dissipation holes (103) are formed in second ring grooves (102) on four sides of the box body (1) towards the outside of the box body (1), second heat dissipation holes (104) are formed in the second ring grooves (102) at two ends of the first heat dissipation holes (103) towards the inside of the box body (1), drain holes (105) are formed in the bottoms of the second ring grooves (102) in the first heat dissipation holes (103), and sponge blocks (9) are arranged in the second ring grooves (102) between the first heat dissipation holes (103) and the second heat dissipation holes (104).

2. The watertight photovoltaic junction box according to claim 1, wherein: the utility model discloses a cable box, including box body (1), wire conduit (10) are installed to the first through-hole (106), pass cable (11) in wire conduit (10), are located the outer fixed mounting of cable (11) of wire conduit (10) outer end has sealing rubber piece (12), sealing rubber piece (12) cross-section is most advanced direction towards the inside toper of box body (1), wire conduit (10) outer end spiro union has fixed thread cover (13) of cover outside locating cable (11), and the vertical part of fixed thread cover (13) closely laminates with the outer end of sealing rubber piece (12).

3. The watertight photovoltaic junction box according to claim 1 or 2, wherein: install binding post (14) in box body (1), binding post (14) are installed in box body (1) through set screw (16), the one end and the diode (15) of binding post (14) are connected, the other end and the cable (11) of binding post (14) are connected.

4. The watertight photovoltaic junction box according to claim 1, wherein: and a third sealing ring (7) is arranged between the bolt head of the fixing bolt (6) and the upper surface of the box cover (2).

5. The watertight photovoltaic junction box according to claim 1, wherein: two side walls in the second annular groove (102) are provided with grooves (107), and two ends of the sponge block (9) are sleeved in the grooves (107).

6. The watertight photovoltaic junction box according to claim 1, wherein: connecting plates (8) are installed on two sides of the box body (1), and mounting holes (801) are formed in the connecting plates (8).

7. The watertight photovoltaic junction box according to claim 1, wherein: the outer edge of the box cover (2) extends out of the box body (1).