CN202332904U - Solar cell junction box - Google Patents

Abstract

The utility model discloses a solar cell junction box which comprises a box body and a bus bar device, wherein the bus bar device comprises a conducting bracket and a bus bar snap ring; the cross section of the conducting bracket is n-shaped; symmetrical holes are formed in two lateral surfaces at the front part of the conducting bracket; a convex column is arranged on a base of the box body; a protrusion is arranged on the inner side of the convex column; when the conducting bracket is clamped in the base of the box body, the hole of the conducting bracket is matched with the protrusion; an accommodation hole is formed in the conducting bracket; symmetrical gaps are formed in two lateral surfaces close to the rear wall of the accommodation hole; the bus bar snap spring is formed by bending an elastic piece; a longitudinal section of the bus bar snap spring is trapezoid; the bus bar snap spring comprises a long side and a short side; an opening is formed in the short side; symmetrical extension sections are arranged on two sides of the long side; the bus bar snap spring is arranged in the accommodation hole; the short side is tightly attached to the front wall of the accommodation hole; the long side is tightly attached to the rear wall of the accommodation hole; and the extension sections of the long side are matched with the gaps of the accommodation hole. The solar cell junction box disclosed by the utility model has the advantages of simple structure, convenience in operation and excellent interchangeability and maintenability.

Description

Solar battery connecting box

Technical field

The utility model relates to a kind of solar battery connecting box, comprises box body and busbar jockey.

Background technology

Solar cell obtains application more and more widely because of environmental protection.Usually the electric current that produces of solar cell is through busbar, and the terminal box through being connected with busbar again be transferred to follow-up usefulness electric line, and present busbar adopts usually the mode of fixed connection to be connected with terminal box.But adopt the drawback of fixed connection mode to be: it a tie point can occur; The generated output of the contact resistance meeting consuming cells that tie point exists; Because solar power generation has low voltage and high current, the tie point place is overheated easily, can threaten line security simultaneously.In addition, terminal box is fixedly connected with busbar, when any one goes wrong when busbar or terminal box, just must both all be changed.Therefore, how the contact resistance with busbar and terminal box junction reduces, and safeguards simple and conveniently simultaneously, becomes a technical problem that is faced at present.

Summary of the invention

The purpose of the utility model is to provide a kind of solar battery connecting box, and busbar and terminal box are easy to connect in this terminal box, and operating efficiency improves.

For this reason; The technical scheme of the utility model is such: solar battery connecting box, comprise box body and arrangement of busbars, and arrangement of busbars comprises conducting bracket and busbar jump ring; Said conducting bracket cross section is " ∏ " shape, and its front part sides has been worn symmetrical holes; Bottom of box body has projection, and the projection inboard has convexity, and when conducting bracket was fastened on Bottom of box body, the hole of conducting bracket cooperated with this convexity; Conducting bracket is provided with accommodation aperture, has symmetric windows near the two sides of accommodation aperture rear wall; Said busbar jump ring is formed by a flexure strip bending, and its longitudinal section is trapezoidal, comprises long limit and minor face; One opening is arranged on the minor face; Both sides, long limit have symmetrical extension, and said busbar jump ring places accommodation aperture, and minor face and accommodation aperture antetheca are close to; Long limit and accommodation aperture rear wall are close to, and the extension on long limit cooperates with the breach of said accommodation aperture.

Further improve, said conducting bracket is positioned on the shelves of Bottom of box body.

On the base of the utility model terminal box box body, all corresponding two projections of each conducting bracket and shelves, shape matches with conducting bracket.The projection inboard has convexity; The conducting bracket front part sides has a hole, and after conducting bracket was fastened on the base of terminal box, conducting bracket was between two projections; The convexity of projection is inserted in the hole of conducting bracket front part sides, make conducting bracket can not about, move forward and backward; Simultaneously, conducting bracket is placed on the shelves of Bottom of box body, and a fixed gap is arranged at itself and box body bottom, can make things convenient for busbar to penetrate.Conducting bracket has accommodation aperture; Have breach on the two sides near the accommodation aperture rear wall, the long sideband of jump ring has the extension, after jump ring is placed the accommodation aperture of conducting bracket; The long limit and the accommodation aperture rear wall of jump ring are close to; The breach on the accommodation aperture is passed in the extension on long limit, makes jump ring be difficult for front and back, move up and down, thereby can't from accommodation aperture, pitch.During use,, make the antetheca of its minor face and accommodation aperture the space occur, busbar is stretched in this space as long as use screwdriver or similar means to prize the busbar jump ring; After Move tool makes the jump ring return, busbar will be pressed on the antetheca of conducting bracket accommodation aperture.

The utility model is provided with projection and shelves on the terminal box Bottom of box body, thereby can also make things convenient for busbar to insert so that conducting bracket firmly is installed on the terminal box; Because the jump ring elastic strength is very big, only is applied under the effect of opening part in external force, can prize jump ring, thereby utilize the elasticity of jump ring that jump ring and conducting bracket are cooperated, realize the connection of busbar.

The utility model structure and easy to operate has good interchangeability and maintainability.

Description of drawings

Below in conjunction with accompanying drawing the utility model is further elaborated.

Fig. 1 is the utility model jump ring and conducting bracket sketch map.

Fig. 2 is the utility model jump ring and the sketch map of conducting bracket device on terminal box.

Cutaway view when Fig. 3 inserts for the utility model busbar.

Embodiment

Referring to accompanying drawing, have projection 9 and shelves 8 on the base of terminal box box body 1, projection 9 inboards have convexity, and conducting bracket 2 front end two sides respectively have a hole 7, and conducting bracket 2 middle parts have an accommodation aperture 6, and the two side of accommodation aperture has breach 10.The longitudinal section of jump ring 3 is trapezoidal, has an opening on the minor face, overlaps in the opening both sides, and the long sideband of jump ring 3 has extension 5.

After conducting bracket 2 was put into the base of terminal box box body 1, the inner bulge of projection 9 was inserted in the hole 7 of conducting bracket 2, and the left and right sides of conducting bracket 2 and rear portion are placed on the shelves 8.After jump ring 3 was positioned over accommodation aperture 6, the rear wall of accommodation aperture 6 was close on its long limit, and the minor face that has opening is close to the antetheca of accommodation aperture 6, and the sidewall breach 10 of accommodation aperture is inserted in extension 5.

Tool using separates jump ring minor face and accommodation aperture antetheca, inserts busbar 4, removes instrument then, makes the jump ring minor face under the elastic force effect, be returned to the state that presses with the accommodation aperture antetheca.

Engaging mode between the utility model conducting bracket and the terminal box base is not limited to above-mentioned listed mode; As long as conducting bracket and terminal box base can firmly be fastened togather; Thereby realize the technical scheme of the utility model; Just belong to the design identical, fall within the protection range of the utility model with the utility model.

Claims (2)

1. solar battery connecting box comprises box body and arrangement of busbars, it is characterized in that: arrangement of busbars comprises conducting bracket and busbar jump ring, and said conducting bracket cross section is " ∏ " shape, and its front part sides has been worn symmetrical holes; Bottom of box body has projection, and the projection inboard has convexity, and when conducting bracket was fastened on Bottom of box body, the hole of conducting bracket cooperated with this convexity; Conducting bracket is provided with accommodation aperture, has symmetric windows near the two sides of accommodation aperture rear wall; Said busbar jump ring is formed by a flexure strip bending, and its longitudinal section is trapezoidal, comprises long limit and minor face; One opening is arranged on the minor face; Both sides, long limit have symmetrical extension, and said jump ring places accommodation aperture, and minor face and accommodation aperture antetheca are close to; Long limit and accommodation aperture rear wall are close to, and the extension on long limit cooperates with the breach of said accommodation aperture.

2. solar battery connecting box as claimed in claim 1 is characterized in that: said conducting bracket is positioned on the shelves of Bottom of box body.

Images