CN203896298U

CN203896298U - Photovoltaic combiner box

Info

Publication number: CN203896298U
Application number: CN201420267863.0U
Authority: CN
Inventors: 傅建民; 胡建刚; 龚进; 周华江
Original assignee: Changshu Switchgear Manufacturing Co Ltd
Current assignee: Changshu Switchgear Manufacturing Co Ltd
Priority date: 2014-05-23
Filing date: 2014-05-23
Publication date: 2014-10-22
Anticipated expiration: 2024-05-23

Abstract

Provided is a photovoltaic combiner box, comprising a box body and a box cover. The front panel of the box body is provided with an opening. The box cover is disposed on the front panel and seals the opening. The periphery edges of the box cover are provided with a U-shaped first flange which bends towards the center, so that a concave cavity on a side of the box body is formed in the box cover. The edges of the opening turn up towards the front side of the box body to form a second flange. The tail end of the second flange extends towards a concave cavity direction, and is abutted against and cooperated with a sealing strip which is fixed on the inner side surface of the box cover. When the box cover is closed, the sealing strip tightly contacts with the flange, so the box body and the box cover form a relatively sealed holding cavity with IP65 protection level. Adding the flanges and the sealing strip is convenient, and cost is not high. Thus, the combiner box reaches the IP65 protection requirements on the premise of almost not increasing production cost.

Description

A kind of photovoltaic combiner box

Technical field

The utility model relates to a kind of photovoltaic combiner box.

Background technology

Along with the development that green energy resource solar energy is utilized, the photovoltaic combiner box development of one of solar energy power generating equipment is also very fast, and product form is various.Because photovoltaic combiner box is the electronic product of outdoor use, the degree of protection of its casing will reach certain requirement, and therefore in order to reach degree of protection, the design of its cabinet base structure is just extremely important.

Summary of the invention

The purpose of this utility model is to provide a kind of photovoltaic combiner box, to ensure degree of protection on the basis not increasing cost.

For achieving the above object, the technical solution adopted in the utility model is: a kind of photovoltaic combiner box, comprise casing and case lid, and on the front panel of described casing, be provided with an opening, case lid is arranged on front panel and the described opening of sealing; It is characterized in that: the surrounding of described case lid is along arranging to " U " shape first crimp of center bending, thereby at the inner cavity that is positioned at casing one side that forms of case lid, one circle edge of described opening is dug to casing front side and is formed the second crimp, and the end of the second crimp extends and conflicts and coordinate with the sealing strip that is fixed on case lid medial surface to cavity direction.

In such scheme, at least one block of side plate of described casing is provided with several water joints.

In such scheme, described the second crimp extends to the outer circumferential side of casing, with front panel structure at angle, and this angle is acute angle.

Design principle of the present utility model and the effect of bringing are as follows:

Owing to being provided with crimp on opening of the present utility model, and on case lid, correspondence is provided with sealing strip, and in the time that case lid is closed, sealing strip and crimp close contact, make casing form a relative airtight cavity volume with case lid, can reach the degree of protection of IP65; And increase crimp and sealing strip is easy to process, cost is not high yet, the utility model is the requirement of shelter that has been issued to IP65 in the prerequisite that does not substantially increase production cost.

Brief description of the drawings

Fig. 1 is that the body structure master of the utility model embodiment looks schematic diagram;

Fig. 2 is that complete section schematic diagram is looked on a left side of Fig. 1;

Fig. 3 is the local enlarged diagram in A place of Fig. 2;

Fig. 4 is the utility model embodiment overall structure schematic diagram.

In above accompanying drawing: 1, casing; 11, side plate; 111, water joint; 112, the first side plate; 113, the second side plate; 114, the 3rd side plate; 12, backboard; 13, front panel; 131, opening; 132, the second crimp; 2, case lid; 21, sealing strip; 22, the first crimp; 23, cavity; 3, hinge; 4, installation shaft; 5, mounting panel; 6, fixed head; 7, earthing screw.

Embodiment

Below in conjunction with drawings and Examples, the utility model is further described:

Embodiment: shown in Fig. 1-4:

A kind of photovoltaic combiner box, comprises casing 1 and case lid 2.

As shown in Figure 1 and Figure 2, casing 1 is by four side plates 11, a backboard 12 and front panels 13 surround up and down, certainly casing 1 also can entirety process, on the front panel 13 of described casing 1, be provided with a rectangular aperture 131, case lid 2 is arranged on front panel 13 and the described opening 131 of sealing, concrete, one side of case lid 2 is connected with casing 1 by the hinge 3 that is arranged on front panel 13 edge one sides, opposite side fixedly makes casing 1 and case lid 2 form a relative airtight cavity volume by screw, and it is also feasible that the both sides of certain case lid 2 are all fixed by screw.

The edge, surrounding of described case lid 2 arranges to " U " shape first crimp 22 of center bending, thereby at the inner cavity 23 that is positioned at casing 1 one sides that forms of case lid 2.One circle edge of described opening 131 is dug to casing front side and is formed the second crimp 132, and the end of the second crimp 132 extends and conflicts and coordinate with the sealing strip 21 that is fixed on case lid 2 medial surfaces to cavity 23 directions.This kind conflicted to coordinate and referred to: in the time that case lid 2 closes, conflict on sealing strip 21 in the outside of the second crimp 132, and after sealing strip 21 conflicts by the second crimp 132, certain distortion should occur, and prevents that extraneous liquid (such as rainwater etc.) from entering inside.

Concrete, the second described crimp 132 extends to the outer circumferential side of casing 1, with front panel 13 structures at angle, and this angle is acute angle.The second described crimp 132 can be one section of crimp or be made up of first paragraph crimp 1321 and second segment crimp 1322 as the second crimp 132 in the present embodiment, first paragraph crimp 1321 is that rectangular aperture 131 edges are to the extended vertical crimp of casing front side turnover, the edge that described second segment crimp 1322 is first paragraph crimp 1321 is again to the enlarging crimp of casing outer circumferential side bending, between front panel 13 and second segment crimp 1322, structure is in an acute angle like this, between front panel 13, first paragraph crimp 1321 and second segment crimp 1322, forms a groove; Described sealing strip 21, for foaming sealing strip, plays waterproof action, and certainly, it is also feasible using the sealing strip of the different materials serving the same role.In the time that case lid 2 is closed, sealing strip 21 and second segment crimp 1322 close contacts, make casing 1 and case lid 2 form a relative airtight cavity volume, can reach the degree of protection of IP65.In the time having extraneous liquid to drip from the top of casing 1, on the one hand, due to the protection of the first crimp 22, extraneous liquid can directly not touch foaming sealing strip, thereby will reduce like this corrosion increase useful life of foaming sealing strip; On the other hand, extraneous liquid is dropping onto after casing 1, due to the existence of groove, can landing from casing rapidly, make extraneous liquid can not touch easily foaming sealing strip, thereby the corrosion that so just further reduces foaming sealing strip increases useful life, has ensured the degree of protection of IP65.The end that it should be noted that the first described crimp 22 from the distance of the second crimp 132 can not be excessively close to, if hypotelorism, when case lid 2 closes or opens on the one hand, the first crimp 22 can interfere with the second crimp 132, on the other hand, if extraneous liquid enters after cavity 23, can be difficult for timely eliminating.

In addition, because hinge 3 is arranged on outside the rectangular aperture 131 of front panel 13, make the sealing of casing 1 and case lid 2 not be subject to the impact of hinge 3, can form reliable closed containing cavity, improved waterproof sealing performance, it is also convenient to manufacture simultaneously and install.

On the first side plate 112 in described four blocks of side plates 11, be provided with several water joints 111, concrete, on side plate 112, offer multiple holes, described water joint 111 is installed in above-mentioned hole, like this, into and out of line cable, through being locked in water joint 111, the potential safety hazard such as avoided leaking, has ensured degree of protection.

On the second side plate 113 in four blocks of side plates 11, the 3rd side plate 114, all welding is provided with earthing screw 7, for the connection of casing earth connection.

On backboard 12 and the internal welding that is positioned at casing 1 be connected to the installation shaft 4 of 4 array arrangements, in described installation shaft 4, be provided with mounting panel 5, on described mounting panel 5, be placed with various components and parts, as circuit breaker, photovoltaic data collector, photovoltaic data collector expansion module etc.Wherein, described photovoltaic data collector is for gathering the circuit signal in header box, and import this signal into photovoltaic data collector inside, carry out analyzing and processing at photovoltaic data collector, and above-mentioned signal is passed to long distance control system and can on display unit, be observed corresponding data for operator.Photovoltaic data collector expansion module has the function identical with photovoltaic data collector, arranges in order to expand monitoring branch road quantity.

On described backboard 12 and the outside weldings that is positioned at casing 1 have fixed head 6, for fixing whole photovoltaic combiner box.

Above-described embodiment is only explanation technical conceive of the present utility model and feature, and its object is to allow person skilled in the art can understand content of the present utility model and implement according to this, can not limit protection range of the present utility model with this.All equivalences of doing according to the utility model Spirit Essence change or modify, within all should being encompassed in protection range of the present utility model.

Claims

1. a photovoltaic combiner box, comprises casing (1) and case lid (2), on the front panel (13) of described casing (1), is provided with an opening (131), and case lid (2) is arranged on the opening (131) that front panel (13) is upper and sealing is described; It is characterized in that: the surrounding of described case lid (2) is along arranging to " U " shape first crimp (22) of center bending, thereby at the inner cavity (23) that is positioned at casing (1) one side that forms of case lid (2), one circle edge of described opening (131) is dug to casing front side and is formed the second crimp (132), and the end of the second crimp (132) extends and conflicts and coordinate with the sealing strip (21) that is fixed on case lid (2) medial surface to cavity (23) direction.

2. photovoltaic combiner box according to claim 1, is characterized in that: at least one block of side plate (11) of described casing (1) is provided with several water joints (111).

3. photovoltaic combiner box according to claim 1, is characterized in that: described the second crimp (132) extends to the outer circumferential side of casing (1), with front panel (13) structure at angle, and this angle is acute angle.