CN2716748Y

CN2716748Y - An improved structure of solar energy assembly junction box

Info

Publication number: CN2716748Y
Application number: CNU2004200620256U
Authority: CN
Inventors: 李仙寿; 吴云才
Original assignee: YUHUAN SOLAR ENERGY SOURCE CO Ltd
Current assignee: YUHUAN SOLAR ENERGY SOURCE CO Ltd
Priority date: 2004-06-17
Filing date: 2004-06-17
Publication date: 2005-08-10
Anticipated expiration: 2014-06-17

Abstract

The utility model discloses an improved structure of solar energy assembly junction box, comprising a box body, a box cover and a sealing ring. A boss is arranged on the side wall of the front end of the box body, and an aerating system is formed from the boss, an aerating baffle and a filter membrane; a sealing recess is arranged on the side wall of the box cover; the external side of the sealing ring has no less than three undulate cords; the box cover and the box body are hermetically connected via the static friction between the sealing ring and the side wall in the box body. The utility model settle the problem that the unbalance of the air pressure inside the box body and the air pressure outside the box body. The improved structure of solar energy assembly junction box is characterized in simple structure, convenient assembly and long service life.

Description

A kind of structure-improved of solar assembly junction box

Technical field:

The utility model relates to the structure-improved of a kind of solar assembly junction box, particularly a kind of solar assembly junction box.

Background technology:

Traditional solar assembly junction box generally is made up of box body, lid and sealing ring, and sealed groove wherein is arranged on the lid bottom, and it matches with the sealing projection on box body top; Adopt screw to twist between box body and the lid and close connection, make that whole terminal box is a complete seal.Though such structure has guaranteed the water resistance of terminal box, but also stayed a big hidden danger, because of the solar components panel is directly in the face of sunshine, absorb solar heat and be converted into electric energy, its surface temperature is very high, and solar assembly junction box is positioned at the back side of solar components, it is very frequent that the box body gas inside is expanded with heat and contract with cold, cause box body inner and outer air pressure imbalance, often the expansion because of gas causes the too high terminal box that makes of air pressure to deform, even break, had a strong impact on the service life of terminal box; On the other hand, the assembly and disassembly of the terminal box that makes of screw syndeton are too loaded down with trivial details

The utility model content

The purpose of this utility model is to provide a kind of structure-improved that is provided with the solar assembly junction box of aerating system, has characteristics simple in structure, easy to assembly, long service life.

For achieving the above object, the utility model has adopted following technical scheme:

A kind of structure-improved of solar assembly junction box comprises box body, lid and sealing ring, it is characterized in that: the box body front end side wall is provided with a boss, and itself and passage, vent baffle and filter membrane form an aerating system; Boss middle part hollow, its size and vent baffle match; Vent baffle bottom is the indent setting at the corresponding position with passage, and links to each other with two vent grooves on the limit; Sealed groove is arranged on the cover side wall; The sealing ring lateral wall is the above waveform striped in three roads or three roads; Lid and box body are tightly connected by the static friction of sealing ring and box body madial wall.

Above-mentioned vent baffle is fixed and is connected on the boss of box body front end side wall;

Seal groove base on the above-mentioned lid is provided with a plurality of projections, and the sealing ring bottom is provided with a plurality of fixed grooves, and projection wherein and fixed groove are corresponding in twos;

Groove is closed in each setting of above-mentioned lid upper surface corner together.

During assembling, at first sealing ring is enclosed within the sealed groove on the lid, and make the projection of seal groove base corresponding with sealing ring bottom fixed groove, guarantee the fastness and the sealing of both combinations with this, then lid is pressed into and promptly finishes being tightly connected of lid and box body on the box body, compare with being threaded, whole assembling procedure is simplified greatly; And when opening, as long as close the perk of structure place with bottle opener at lid upper surface corner.On the other hand, the aerating system that the box body front end side wall is provided with, make when the gas in the box body expands, gas can be discharged to the outside by passage, filter membrane, vent baffle successively, thereby remained the balance of box body inner and outer air pressure, avoid the phenomenon generation that causes terminal box distortion even break because of expanding with heat and contract with cold of gas, prolonged the service life of terminal box; In addition, the filter membrane that is provided with in the aerating system has played and has prevented that rainwater and dust from entering the effect of box body inside, played the certain protection effect to the electric elements in the box body.In a word, the utlity model has characteristics simple in structure, easy to assembly, long service life.

Figure of description

Fig. 1, stereochemical structure exploded view of the present utility model;

Fig. 2, stereochemical structure constitutional diagram of the present utility model;

The partial enlarged drawing at Fig. 3, the utility model A place;

The decomposing schematic representation of Fig. 4, the utility model aerating system;

The decomposing schematic representation at another visual angle of Fig. 5, the utility model aerating system;

The decomposing schematic representation of Fig. 6, lid of the present utility model and sealing ring.

The specific embodiment

The structure-improved of a kind of solar assembly junction box shown in Fig. 1,2,3,4 and 5 comprises box body 1, lid 2 and sealing ring 3.Described box body 1 front end side wall is provided with a boss 11, and itself and passage 12, vent baffle 13 and filter membrane 14 form an aerating system.Boss 11 middle part hollows, its size and vent baffle 13 match, and each side being provided with of boss 11 tops one engages groove 111.Vent baffle 13 bottoms are a circular indent 131 at the corresponding position with passage 12, and link to each other with the vent grooves 132 on the through top of twice; Vent baffle 13 tops each side are provided with a projection 133, and it is corresponding with the engaging groove 111 on the boss 11.During assembling, at first filter membrane 14 is put into the hollow part of boss 11, block the outlet of passage 12, subsequently vent baffle 13 is inserted into from top to bottom the hollow part of boss 11, two projections 133 up to its top are fastened in two engaging grooves 111 on boss 11 tops.

As shown in Figure 6, groove 21 is closed in each setting of four corners of lid 2 upper surfaces together, and sealed groove 22 is arranged on the sidewall of lid 2, and groove 22 bottoms are provided with a plurality of projections 221.Sealing ring 3 lateral walls are the above waveform striped in three roads or three roads, strengthen the shrinkage and the confficient of static friction of sealing ring 3 with this, sealing ring 3 bottoms are provided with a plurality of fixed grooves 31, its projection 221 with sealed groove 22 bottoms is corresponding, is used to strengthen sealing property and the fastness that sealing ring 3 is connected with lid 2.During assembling, at first sealing ring 3 is enclosed within the sealed groove 22 on the lid 2, and the projection 221 that makes sealed groove 22 bottoms is fastened in the fixed groove 31 of sealing ring 3 bottoms, then lid 2 is pressed into the assembling of promptly finishing both on the box body 1, lid 2 and box body 1 are realized being tightly connected by the static friction of sealing ring 3 with box body 1 madial wall, thereby have prevented entering of rainwater.Compare with being threaded, whole assembling procedure is simplified greatly.And when opening, only needing to close groove 21 places perk with bottle opener rising of lid 2 upper surface corners can open.

In use, when the gas in the box body 1 expanded, gas can be discharged to the outside by passage 12, filter membrane 14, vent baffle 13 successively; When the gas cooled in the box body 1 is shunk, gas can pass through vent baffle 13, filter membrane 14, passage 12 arrival box bodys 1 inside again, thereby remained the balance of box body 1 inner and outer air pressure, avoid the phenomenon generation that causes terminal box distortion even break because of expanding with heat and contract with cold of gas, prolonged the service life of terminal box.And in this aerating system, filter membrane 14 has played and has prevented that rainwater and dust from entering the effect of box body 1 inside, and the electric elements of inside have been played the certain protection effect.

In addition, aerating system take place to stop up or box body 1 in gas when sharply expansion and aerating system have little time to make adjustment, in case the pressure that internal gas produces lid 2 surpasses the static friction between sealing ring 3 and the box body 1, lid 2 will be backed down by gas, thereby avoided the distortion of the damage of inner electric elements and terminal box and broken, prolonged the service life of terminal box from another point of view.

Claims

1, a kind of structure-improved of solar assembly junction box comprises box body, lid and sealing ring, it is characterized in that: the box body front end side wall is provided with a boss, and itself and passage, vent baffle and filter membrane form an aerating system; Boss middle part hollow, its size and vent baffle match; Vent baffle bottom is the indent setting at the corresponding position with passage, and links to each other with two vent grooves on the limit; Sealed groove is arranged on the cover side wall; The sealing ring lateral wall is the above waveform striped in three roads or three roads; Lid and box body are tightly connected by the static friction of sealing ring and box body madial wall.

2, the structure-improved of a kind of solar assembly junction box as claimed in claim 1 is characterized in that: vent baffle is fixed and is connected on the boss of box body front end side wall.

3, the structure-improved of a kind of solar assembly junction box as claimed in claim 1 is characterized in that: the seal groove base on the lid is provided with a plurality of projections, and the sealing ring bottom is provided with a plurality of fixed grooves, and projection wherein and fixed groove are corresponding in twos.

4, the structure-improved of a kind of solar assembly junction box as claimed in claim 1 is characterized in that: groove is closed in each setting of lid upper surface corner together.