Film junction box

Abstract

The film junction box comprises a bottom plate, an annular plate, a box cover and a cable, the annular plate is installed on the bottom plate, the box cover is installed on the annular plate, an electric conductor is arranged in the annular plate, the side wall of the annular plate is provided with an opening, the cable penetrates through the opening and is connected with the electric conductor, the bottom plate is provided with a bus bar guide hole, and the bus bar guide hole is connected with the box cover. The bus bar can penetrate through the bus bar guide hole to be connected with the electric conductor. The structure can reduce the overall length of the box body, so that the whole box body occupies less space.

Description

TECHNICAL FIELD

[0001] The utility model relates to photovoltaic junction box technical field, concretely relates to a thin film junction box. BACKGROUND

[0002] Solar energy is inexhaustible and renewable energy for human beings, and plays an important role in the energy strategy of countries in the world. Thin film power generation relies on thin film solar cell chips with light, thin and flexible characteristics, and is widely used in every corner of the city. The cadmium telluride thin film module needs to be installed and matched, and the current thin film junction box structure design is unreasonable, resulting in large box volume and high cost. UTILITY MODEL CONTENT

[0003] In view of the defects in the prior art, the utility model provides a thin film junction box, which can reduce the overall length of the box body and occupy less space.

[0004] A thin film junction box comprises a bottom plate, an annular plate, a box cover and a cable, the annular plate is installed on the bottom plate, the box cover is installed on the annular plate, a conductor is arranged in the annular plate, the sidewall of the annular plate has an opening, the cable passes through the opening and is connected with the conductor, a bus bar guide hole is opened on the bottom plate, and the bus bar can pass through the bus bar guide hole and be connected with the conductor.

[0005] Preferably, the conductor comprises a tin block and a conductive support, the conductive support is fixed in the annular plate, the tin block is installed on the conductive support, and the cable and the bus bar are connected with the conductive support.

[0006] Preferably, the conductive support is a tin-plated support or a nickel-plated support.

[0007] Preferably, the cable and the conductive support are welded by resistance welding.

[0008] Preferably, it further comprises a pressing buckle, the pressing buckle is installed on the bottom plate, and the pressing buckle fixes the cable.

[0009] Preferably, the conductive support is fixed on the bottom plate in the annular plate through a plurality of hot melt columns.

[0010] Preferably, the bottom wall of the bottom plate is provided with an annular boss, and the bus bar guide hole is located in the annular boss.

[0011] Preferably, the annular plate is in a rectangular shape.

[0012] The utility model discloses beneficial effect is reflected in: the technical scheme in this utility model is provided with annular plate on the bottom plate, install box cover on the annular plate, and the box cover plays the protection effect to the internal part of annular plate, and the electric conductor is arranged in the annular plate, and the lateral wall of annular plate has the opening, and the cable enters and connects with the electric conductor from the lateral wall opening, and the busbar guiding hole is opened on the bottom plate, and the busbar enters and connects with the electric conductor from the busbar guiding hole, so through the reasonable layout, can reduce the overall length of annular plate, makes the whole box body occupies the space less. BRIEF DESCRIPTION OF DRAWINGS

[0013] In order to more clearly illustrate the specific embodiment of the utility model or the technical scheme in prior art, the following will be to the specific embodiment or the prior art description needed to use the drawing briefly introduced.In all drawings, similar elements or parts are generally identified by similar reference signs.The elements or parts in the drawings are not necessarily drawn according to the actual proportion.

[0014] Fig. 1 It is the overall structure schematic diagram of the utility model;

[0015] Fig. 2 It is the overall structure schematic diagram of the utility model after box cover is removed;

[0016] Fig. 3 It is the overall structure schematic diagram of the bottom of the utility model.

[0017] In the drawings, 1-bottom plate, 2-annular plate, 3-box cover, 4-electric conductor, 5-cable, 6-press buckle, 7-busbar guiding hole, 8-hot column, 9-annular boss, 41-tin block, 42-conductive support. SPECIFIC EMBODIMENT

[0018] The embodiment of the utility model technical scheme will be described in detail below in conjunction with the drawings.The following examples are only used to more clearly illustrate the technical scheme of the utility model, therefore only as example, and can not be used to limit the protection scope of the utility model.

[0019] It should be noted that, unless otherwise stated, the technical terms or scientific terms used in the present application should be the usual meaning understood by the technical personnel in the field of the utility model.

[0020] Example 1

[0021] As Figs. 1-3As shown, the thin film junction box provided in the embodiment includes a bottom plate 1, an annular plate 2, a box cover 3 and a cable 5, the annular plate 2 is installed on the bottom plate 1, the box cover 3 is installed on the annular plate 2, the annular plate 2 is provided with a conductive body 4, the side wall of the annular plate 2 has an opening, the cable 5 passes through the opening and is connected with the conductive body 4, the bottom plate 1 is provided with a bus bar guide hole 7, and the bus bar can pass through the bus bar guide hole 7 and be connected with the conductive body 4.

[0022] In the embodiment, the annular plate 2 is arranged on the bottom plate 1, the box cover 3 is installed on the annular plate 2, the box cover 3 protects the internal components of the annular plate 2, the conductive body 4 is arranged in the annular plate 2, the side wall of the annular plate 2 has an opening, the cable 5 enters the conductive body 4 from the opening in the side wall, the bottom plate 1 is provided with a bus bar guide hole 7, and the bus bar enters the conductive body 4 from the bus bar guide hole 7. Thus, through reasonable layout, the overall length of the annular plate 2 can be reduced, and the space occupied by the entire box body is small.

[0023] In the embodiment, the annular plate 2 and the bottom plate 1 are integrally formed.

[0024] In the embodiment, the bus bar guide hole 7 can be suitable for the installation of a bus bar with a width of less than 14 mm, and has strong compatibility.

[0025] In the embodiment, the conductive body 4 includes a tin block 41 and a conductive bracket 42, the conductive bracket 42 is fixed in the annular plate 2, the tin block 41 is installed on the conductive bracket 42, and the cable 5 and the bus bar are connected with the conductive bracket 42.

[0026] In the embodiment, the conductive bracket 42 is a tin-plated bracket or a nickel-plated bracket.

[0027] In the embodiment, the cable 5 and the conductive bracket 42 are welded by resistance welding. In the traditional way, the cable 5 and the conductive body 4 are riveted. In the embodiment, the cable 5 and the conductive body 4 are welded by resistance welding, which shortens the overall length of the box compared with the traditional way and saves costs.

[0028] In the embodiment, a pressing buckle 6 is further included, the pressing buckle 6 is installed on the bottom plate 1, and the pressing buckle 6 fixes the cable 5. In the embodiment, the pressing buckle 6 is fixed on the bottom plate 1 in the form of ultrasonic welding.

[0029] In the embodiment, the conductive bracket 42 is fixed on the bottom plate 1 in the annular plate 2 by a plurality of hot melt columns 8. In the embodiment, the conductive bracket 42 is fixed in the annular plate 2 by a plurality of hot melt columns 8, so that the installation and fixation of the conductive body 4 are realized, and the conductive body 4 is installed at the center of the annular plate 2.

[0030] The bottom wall of the bottom plate 1 is provided with an annular boss 9 in the embodiment, and the busbar guide hole 7 is located in the annular boss 9. The annular boss 9 is provided in the embodiment, and the annular boss 9 plays a role of isolating the back plate glue. In specific use, the bottom wall of the bottom plate 1 outside the annular boss 9 is marked with silicone, and is pasted on a solar module. The busbar enters the conductor 4 for use.

[0031] The annular plate 2 is in a rectangular shape in the embodiment. The annular plate 2 is in a rectangular shape in the embodiment, so that further reasonable layout is achieved, and the space occupied by the box body is reduced.

[0032] Finally, it should be noted that: the above embodiments are only used to illustrate the technical solutions of the utility model, and not to limit them; although the utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art should understand that: it can still modify the technical solutions recorded in the foregoing embodiments, or make equivalent replacement for part or all of the technical features; and these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model, and they should be covered in the scope of the claims and the description of the utility model.

Claims

1. A film terminal box characterized by comprising: The utility model relates to a box for connecting cable and busbar, which comprises a bottom plate (1), a ring plate (2), a box cover (3) and a cable (5), the ring plate (2) is installed on the bottom plate (1), the box cover (3) is installed on the ring plate (2), the ring plate (2) is provided with a conductor (4), the ring plate (2) side wall has an opening, the cable (5) passes through the opening and is connected with the conductor (4), the bottom plate (1) is provided with a busbar guide hole (7), and the busbar can pass through the busbar guide hole (7) and be connected with the conductor (4).

2. A film terminal box according to claim 1, wherein The conductor (4) comprises a tin block (41) and a conductive support (42), the conductive support (42) is fixed in the ring plate (2), the tin block (41) is installed on the conductive support (42), and the cable (5) and the busbar are connected with the conductive support (42).

3. A film terminal box according to claim 2, wherein The conductive support (42) is a tinned support or a nickel-plated support.

4. A film terminal box according to claim 2, wherein The cable (5) and the conductive support (42) are welded by resistance welding.

5. A film terminal box according to claim 1, wherein Further comprising a pressing buckle (6), the pressing buckle (6) is installed on the bottom plate (1), and the pressing buckle (6) fixes the cable (5).

6. A film terminal box according to claim 2, wherein The conductive support (42) is fixed on the bottom plate (1) in the ring plate (2) through a plurality of hot melt columns (8).

7. A film terminal box according to claim 1, wherein The bottom wall of the bottom plate (1) is provided with an annular boss (9), and the busbar guide hole (7) is located in the annular boss (9).

8. A film terminal box according to claim 1, wherein The ring plate (2) is in a rectangular shape.

Images