CN209120128U - A kind of Split type connecting box of optimization design - Google Patents

Abstract

The utility model discloses a kind of Split type connecting boxes of optimization design, belong to photovoltaic junction box field of structural design.Including positive terminal box, negative junction box and halfway junction box, three kinds of terminal boxes include lid and pedestal.There is the card slot muscle position of sample different in size on both sides to pedestal up and down, and both sides side length correspond to the card slot muscle position of pedestal to lid up and down, make lid that can only provide convenience toward buckling on a direction for the use consistency of client.Solidus is buckled with tail, increases gluing width, improves adhesive property.The terminal block of terminal box is all same structure, reduces the specification of terminal block, reduces terminal box and die cost.There is empty slot to keep apart with glue-filling slot by gear muscle on pedestal, screwdriver sticks up the colloid that will not be damaged to junction box when lid is uncapped, and guarantees the performance of product.Below the diode far from terminal block heat-transfer area and bending terminal face envisaged underneath has supporting rib, and fixed stability unshifts when ensure that terminal block by high temperature, to guarantee properties of product.

Description

A kind of Split type connecting box of optimization design

Technical field

The utility model belongs to photovoltaic junction box field of structural design, and in particular to a kind of split type wiring of optimization design Box.

Background technique

Photovoltaic junction box is the important portion for being used to connect photovoltaic module solar panel and inverter in solar power system Part.Terminal box is decomposed into a positive terminal box, a negative junction box and several intermediate connections by Split type connecting box Box, each terminal box is interior to be arranged a diode, and each terminal box is directly connected between adjacent battery pack, only connects in anode Wire box connects photovoltaic cable with negative junction box.Split type connecting box can be such that connection length minimizes, and disperse the heat of diode Amount, while the electric component in halfway junction box can be sealed in advance, and when in-site installation only need to be to positive terminal box and cathode Terminal box is sealed, and reduces site workload, improves wiring reliability.

Split type connecting box on current market still has following shortcoming: 1, terminal box base and lid pass through card slot muscle Position fastens, and the card slot muscle position on pedestal and lid both sides up and down is identical, but the mark on lid be it is directive, three kinds connect After the lid of wire box covers, the mark direction on possible lid is inconsistent, makes troubles for the use of client；2, terminal box bottom Narrow with the gluing width of solar panel, the reliability of bonding is insufficient；3, the terminal block structure design of three kinds of terminal boxes It is inconsistent, cause the specification of terminal block various, increases terminal box and die cost；4, screwdriver sticks up and can be damaged to when lid is uncapped The colloid of junction box influences the performance of product；5, when on terminal block weld convergent belt when, terminal block surface can generate compared with High temperature, when terminal block is by high temperature can it is unstable in addition generate displacement, influence the performance of product.Therefore, it solves split type The above problem of terminal box guarantees the stabilization of performance to improve ease for use, reduce cost, is that current Split type connecting box is set The target for needing to realize in meter.

Utility model content

The purpose of the utility model is to provide a kind of Split type connecting boxes of optimization design, to solve above-mentioned background technique The current Split type connecting box of middle proposition there are the problem of.

The technical solution of the utility model is as follows:

A kind of Split type connecting box of optimization design, including positive terminal box, negative junction box and halfway junction box, three Kind of terminal box includes the lid and pedestal fastened, is respectively equipped with diode in pedestal and is electrically connected by the diode Terminal plate, convergent belt are connected on the terminal plate, and the tail portion of pedestal is equipped with firm clamp, and positive and negative electrode photovoltaic cable draws Outlet is passed through among pedestal and firm clamp respectively and is connect with the terminal plate, and casting glue is filled in the pedestal；

The both sides up and down of the pedestal of the positive terminal box, negative junction box and halfway junction box are equipped with sample different in size Card slot muscle position；The both sides up and down of the lid also are provided with the card slot muscle that length corresponds to the sample different in size of pedestal card slot muscle position Position；The stub slot muscle position on stub slot muscle position and the pedestal on the lid fastens, the long card slot muscle position on the lid It is fastened with the long card slot muscle position on the pedestal；

On the pedestal of the positive terminal box, negative junction box and halfway junction box include two slots, glue-filling slot and Empty slot beside glue-filling slot is set, and the glue-filling slot is for installation end sub-block, diode and encapsulating, the empty slot and glue-filling slot Between be isolated by gear muscle；

Distinguish on the pedestal of the positive terminal box, negative junction box and halfway junction box in the lower section of the diode Equipped with supporting rib, the lower section on the pedestal of the halfway junction box in the bending terminal face of the terminal block is equipped with supporting rib.

Further, the terminal block of the positive terminal box, negative junction box and halfway junction box uses same knot Structure.

Further, the firm clamp is equipped with flat tail, the plate of firm clamp after firm clamp and pedestal installation The tail of shape and the bottom surface of pedestal are concordant.

Further, the length of the card slot muscle position of the sample different in size on the lid is shorter than the length on the pedestal respectively The length of short different card slot muscle position.

Further, the area of the glue-filling slot is greater than the area of the empty slot.

Further, the riveting of the terminal block and weld are designed using centering.

Further, heat-transfer area of the supporting rib far from the terminal block.

The advantageous effects of the utility model are:

1, there is the card slot muscle position of sample different in size on the upper and lower both sides of the pedestal of the utility model, and both sides side length is corresponding up and down for lid The card slot muscle position of pedestal provide lid can only for the use consistency of client conveniently toward buckling on a direction.

2, the firm clamp of the utility model is equipped with tail, can increase the gluing of terminal box bottom and solar panel Width makes gluing face be unlikely to too narrow, so as to improve adhesive property, improves the reliability of installation.

3, the terminal block riveting of the utility model and weld design for centering, and the terminal block of three kinds of terminal boxes is all same Kind, reduce the specification of terminal block, terminal block, which is unified for one kind, reduces terminal box and die cost.

4, empty slot and glue-filling slot this side cavity keep apart on the pedestal of the utility model by gear muscle, screwdriver sticks up lid The colloid of junction box will not be damaged to when uncapping, to guarantee the performance of product.

5, the utility model far from terminal block heat-transfer area diode below and bending terminal face below design have support Muscle, the heat-transfer area far from terminal block, fixed stability unshifts when ensure that terminal block by high temperature, to guarantee product Energy.

The advantages of the utility model, will provide in the description of specific embodiment part below, will partially retouch from following Become obvious in stating, or is recognized by the practice of the utility model.

Detailed description of the invention

Fig. 1 is a kind of exploded view of embodiment of the utility model.

Fig. 2 is the card slot muscle bitmap of pedestal.

Fig. 3 is the card slot muscle bitmap of lid.

Fig. 4 is that lid and pedestal pass through card slot muscle position fastening figure.

Fig. 5 is the structure chart of terminal.

Fig. 6 is installation diagram of the terminal in terminal box.

Fig. 7 is the empty slot of pedestal and the structure chart of baffle muscle.

Fig. 8 is that screwdriver sticks up lid and uncaps schematic diagram.

Fig. 9 is the structure chart of the supporting rib of pedestal.

Figure 10 is the enlarged drawing of supporting rib.

Specific embodiment

Specific embodiments of the utility model will be further explained with reference to the accompanying drawing.

The utility model is the structure design of Split type connecting box, and following embodiment is carried out by taking triad formula terminal box as an example Explanation.

Fig. 1 show a kind of decomposition texture of embodiment of the utility model comprising a positive terminal box, a cathode Terminal box and a halfway junction box.Positive terminal box includes the lid 101 being interlocked and positive pedestal 102, negative terminal Box includes the lid 201 and cathode pedestal 202 being interlocked, and halfway junction box includes the lid 301 and center base being interlocked 302.Positive pedestal 102, cathode pedestal 202 are respectively equipped with diode 103,203,303 in center base 302 and by two poles The terminal block 104,204,304 that pipe 103,203,303 is electrically connected, convergent belt are connected on terminal block 104,204,304. The tail portion of positive terminal box, the tail portion of negative junction box are respectively equipped with firm clamp 105,205, the extraction of positive photovoltaic cable 106 End passes through among positive pedestal 102 and firm clamp 105 and connect with terminal plate 104, the exit of cathode photovoltaic cable 206 from It passes through among cathode pedestal 202 and firm clamp 205 and is connect with terminal plate 204.Casting glue is finally filled into positive pedestal 102, cathode pedestal 202, in center base 302.

As shown in Figure 1, a flat tail is respectively equipped on firm clamp 105,205, after firm clamp and pedestal installation The flat tail is concordant with the bottom surface of pedestal, and effect is the gluing width for increasing terminal box bottom and solar panel, So that gluing face is unlikely to too narrow, so as to improve adhesive property, improves the reliability of installation.

As shown in Fig. 2, the both sides up and down of the pedestal 102,202,302 of three kinds of terminal boxes are equipped with the card slot of sample different in size Muscle position, wherein the top of pedestal is equipped with the stub slot muscle position 11 of length 48mm, the following long card slot for being equipped with length 50mm of pedestal Muscle position 12.As shown in figure 3, the both sides up and down of the lid 101,201,301 of three kinds of terminal boxes are equipped with length and correspond to pedestal and summary The shorter than card slot muscle position of pedestal, wherein the top of lid is equipped with the stub slot muscle position 13 of length 47.3mm, and lid is equipped with below The long card slot muscle position 14 of length 49.3mm.As shown in figure 4, making lid due to the setting of length card slot muscle position on lid and pedestal Pedestal can only be buckled toward a direction, i.e. the stub slot muscle position 11 that the stub slot muscle position 13 of lid 47.3mm falls into pedestal 48mm is detained It closes, the long card slot muscle position 12 that the long card slot muscle position 14 of lid 49.3mm falls into pedestal 50mm fastens, and is the use consistency of client It is convenient to provide.

As shown in Figure 5 and Figure 6, the riveting of terminal block 104,204,304 and weld design for centering, the end of three kinds of terminal boxes Sub-block be all it is same, reduce the specification of terminal block, terminal block, which is unified for one kind, reduces terminal box and die cost.

As shown in fig. 7, including two slots on the pedestal 102,202,302 of three kinds of terminal boxes, biggish one is encapsulating Slot 15, for installation end sub-block, diode etc. and encapsulating, glue-filling slot 15 is next to a lesser empty slot 16, empty slot 16 and filling Glue groove 15 is kept apart by gear muscle 17.As shown in figure 8, screwdriver 18 stick up fallen into when lid is uncapped in empty slot 16 rather than glue-filling slot 15, therefore it will not be damaged to the colloid of junction box, to guarantee the performance of product.

As shown in figure 9, terminal block surface can generate when welding convergent belt with electric iron 19 on terminal block 104,204,304 Supporting rib is arranged in higher temperature, the utility model on pedestal, and upper surface of the setting position far from terminal block of supporting rib is Heat-transfer area.As shown in Figure 9 and Figure 10, supporting rib is divided into two kinds, and one is the supporting ribs 20 of diode, in three kinds of terminal boxes all Have, this supporting rib 20 is located at the lower section of the diode of three kinds of terminal boxes；Another kind is the supporting rib 21 of terminal block, only in centre Have in terminal box, this supporting rib 21 is located at below the bending terminal face of the terminal block of halfway junction box (bending terminal face reference The part of semi arch is curved in Fig. 1 on terminal block), it is in rim of a cup shape, with reference to Figure 10.Since the area of supporting rib 20,21 compares Greatly, intensity is bigger, it is not easy to the equal soldering appliances displacement of electric iron 19, fix when because ensure that terminal block by high temperature Stability unshifts, to guarantee properties of product.

Above-described is only preferred embodiments of the present invention, and the utility model is not limited to above embodiments.It can To understand, what those skilled in the art directly exported or associated under the premise of not departing from the spirit and design of the utility model Oher improvements and changes are considered as being included within the scope of protection of this utility model.

Claims (7)

1. a kind of Split type connecting box of optimization design, it is characterised in that: including positive terminal box, negative junction box and centre Terminal box, three kinds of terminal boxes include the lid and pedestal fastened, diode are respectively equipped in pedestal and by the diode The terminal plate of electric connection, convergent belt are connected on the terminal plate, and the tail portion of pedestal is equipped with firm clamp, positive and negative aurora The exit of hint cable is passed through among pedestal and firm clamp respectively and is connect with the terminal plate, and casting glue is filled in the bottom In seat；

The both sides up and down of the pedestal of the positive terminal box, negative junction box and halfway junction box are equipped with the card of sample different in size Slot muscle position；The both sides up and down of the lid also are provided with the card slot muscle position that length corresponds to the sample different in size of pedestal card slot muscle position；Institute Stub slot muscle position on lid and the stub slot muscle position on the pedestal is stated to fasten, the long card slot muscle position on the lid with it is described Long card slot muscle position on pedestal fastens；

It include two slots, glue-filling slot and setting on the pedestal of the positive terminal box, negative junction box and halfway junction box Empty slot beside glue-filling slot, the glue-filling slot is for installation end sub-block, diode and encapsulating, between the empty slot and glue-filling slot It is isolated by gear muscle；

Being respectively arranged below in the diode on the pedestal of the positive terminal box, negative junction box and halfway junction box Supporting rib, the lower section on the pedestal of the halfway junction box in the bending terminal face of the terminal block are equipped with supporting rib.

2. a kind of Split type connecting box of optimization design according to claim 1, it is characterised in that: the positive terminal The terminal block of box, negative junction box and halfway junction box uses same structure.

3. a kind of Split type connecting box of optimization design according to claim 1, it is characterised in that: set on the firm clamp The flat tail of firm clamp is concordant with the bottom surface of pedestal after having flat tail, firm clamp to install with pedestal.

4. a kind of Split type connecting box of optimization design according to claim 1, it is characterised in that: the length on the lid The length of short different card slot muscle position is shorter than the length of the card slot muscle position of the sample different in size on the pedestal respectively.

5. a kind of Split type connecting box of optimization design according to claim 1, it is characterised in that: the face of the glue-filling slot Product is greater than the area of the empty slot.

6. a kind of Split type connecting box of optimization design according to claim 1, it is characterised in that: the riveting of the terminal block It connects and is designed with weld using centering.

7. a kind of Split type connecting box of optimization design according to claim 1, it is characterised in that: the supporting rib is separate The heat-transfer area of the terminal block.