CN201425972Y

CN201425972Y - Solar junction box

Info

Publication number: CN201425972Y
Application number: CN2009200402606U
Authority: CN
Inventors: 詹功瀚; 王铁磊; 张小刚
Original assignee: SUZHOU HARDI SOLAR TECHNOLOGY CO LTD
Current assignee: SUZHOU HANDI ENERGY TECHNOLOGY CO., LTD.
Priority date: 2009-04-16
Filing date: 2009-04-16
Publication date: 2010-03-17
Anticipated expiration: 2019-04-16

Abstract

The utility model discloses a solar junction box, which comprises a box body, a plurality of wire holders fixedly arranged in the box body, a plurality of diodes connected between the wire holders, and cables led out from the wire holders to the external of the box body. The diodes are connected with the wire holders through a connecting device, and the connecting device comprises a wire guide plate and an elastic limiting device, wherein the wire guide plate is used for pins of diodes to insert into locating holes along the vertical direction, and the elastic limiting device is fixed on the wire guide plate for firmly clamping the pins. The connecting device of the diodes is dispensed with the thread locking structure, and the dismantling and changing are very convenient. Moreover, the area of the wire guide plate is comparatively enlarged so that the heat dissipation effect is better.

Description

Solar junction box

Technical field

The utility model relates to a kind of solar junction box.

Background technology

Solar junction box is a kind of jockey between solar cell and storage battery or the controller.Solar junction box of the prior art is provided with a plurality of junction blocks in its box body, these junction blocks are connected mutually by several diodes.Usually, the pin of these diodes contacts with junction block by copper sheet, and adopts screw-threaded coupling.Between pin and the copper sheet is that line contacts substantially, so contact resistance is big, and heat conduction is slow, diode junction temperature height.The installation process of screw-threaded coupling is more loaded down with trivial details.

Summary of the invention

Technical problem to be solved in the utility model provide a kind of contact of internal body diodes solid and reliable, be not easy the solar junction box by mistake extracted.

The purpose of this utility model is achieved in that

A kind of solar junction box comprises: box body, be fixedly installed on several junction blocks in the described box body, be connected several diodes between the described junction block, lead to the cable of described box body outside from described junction block.Described diode is connected by jockey with described junction block, and this jockey comprises: the tension disc that possesses the location hole that the pin for diode vertically inserts; Be fixed on the elastic limit device that being used on the described tension disc tightens described pin.

Described elastic limit device comprises: with the baffle plate that described tension disc one constitutes, this baffle plate is the extension of the part hole wall of described location hole; Be fixedly installed on the elastic sheet metal on the described tension disc, an end of this sheet metal pass described location hole and and described baffle plate between form a gap that is used to hold and clamp described pin.

Both sides at described tension disc are set with a pair of flank upward projectedly, are formed with the groove of the horizontally extending part that is used to hold described pin at the top of this flank.

Because the utilization of technique scheme the utlity model has following advantage:

1, the diode jockey in the utility model has been abandoned the screw-threaded coupling structure, at dismounting, easy to operate when changing.

2, the tension disc area increases relatively, makes radiating effect better.

Description of drawings

Accompanying drawing 1 is an explosive view of the present utility model;

Accompanying drawing 2 is the cutaway view of jockey.

Wherein: 1, loam cake; 2, sealing ring; 5, shell fragment; 6, tension disc; 7, diode; 8, sheet metal; 9, base plate; 10, pin; 11, location hole; 12, baffle plate; 13, flank; 14, groove; 15, gap; 16, protecting cover; 17, cable; 18, base; 19, buckle; 20, grab; 21, connecting hole; 26, wiring hole; 29, junction block; 40, banking stop; 41, spacing hole.

Embodiment

Below in conjunction with accompanying drawing execution mode of the present utility model is specifically described.

According to the solar junction box that the utility model is implemented, its box body is made of loam cake 1 and base 18.As shown in Figure 2, inner surface at loam cake 1 offers around the shape seal groove, when closed loam cake 1, the sidewall of base 18 can insert in the sealing groove, and between the bottom land of sidewall and seal groove, be folded with the flexible seal ring 2 of a ring-type, deformation can take place in sealing circle 2 when being subjected to the extruding of loam cake 1 and base 18, thereby realizes the sealing of box body.

Be provided with an independently base plate 9 that can disassemble from base 18 in the inside of base 18, on this base plate 9, be arranged side by side six junction blocks 29.Junction block 29 is core components of whole terminal box, constitutes with base plate 9 one.Like this, if need to change the specification of junction block 29, only the base plate 9 that needs corresponding replacing to be provided with the junction block 29 of different size gets final product, and need not whole base 18 is all replaced.

Crucial innovative point of the present utility model is the connected mode between junction block 29 and the diode 7.

As shown in Figure 2, the two ends of diode 7 are fixedly connected by one group of jockey and adjacent two junction blocks 29 respectively.This jockey comprises:

Tension disc 6 has location hole 11 on tension disc 6, the taper of the pin one 0 of diode 7 bends the back downwards and inserts in this location hole 11;

The baffle plate 12 that extends to form downwards by the part hole wall of location hole 11;

Be fixed on the elastic sheet metal 8 of tension disc 6 tops, face mutually with baffle plate 12 thereby an end of this sheet metal 8 passes location hole 11, formed a gap 15 between the two, pin one 0 just is sandwiched among this gap 15.

By above-mentioned jockey, the pin of diode 7 just can be by firm grip among location hole 11, and with tension disc 6 between formation face contact, contact area is big, good conductivity, resistance is little, rapid heat dissipation, the junction temperature of diode reduces.

Can shake for fear of diode 7, both sides at tension disc 6 are also protruded a pair of flank 13 of formation respectively upward, be formed with horizontally extending groove 14 at the top of flank 13, the horizontally extending part of pin one 0 just is placed in this groove 14, thereby avoids rocking.

The effect of junction block 29 is that the cable 17 that order is inserted in the terminal box is electrically connected with the welding 39 of drawing in solar panel.Present embodiment adopts a leg-of-mutton shell fragment 5 to finish being electrically connected of tension disc 6 and welding.As shown in Figure 2, have the spacing hole 41 of rectangle on an end of shell fragment 5, protrusion is provided with a banking stop 40 on tension disc 6 simultaneously.Banking stop 40 is inserted in the spacing hole 41, and be close on the hole wall of spacing hole 41.Also insert in the spacing hole 41 after being bent into triangle the other end of shell fragment 5.Because shell fragment 5 possesses elasticity, so the other end of shell fragment 5 can be inconsistent with banking stop 40, banking stop 41 is pressed on the hole wall of spacing hole 41.Welding is clipped between the hole wall of banking stop 40 and spacing hole 41, just can realizes that welding 39 contacts with face between the tension disc 6.Because the elastic force direction that shell fragment 5 is had is to make shell fragment 5 possess the tendency of stretching, therefore can be owing to the lax of elastic force fluffs the conflict between banking stop 40 and the spacing hole 41, therefore reliability, the stability that connects is all very high.

For fixing whole tension disc 6, above tension disc 6, cover a protecting cover 16, this protecting cover 16 is fixedly connected with junction block 29 by buckle 19 and the grab 20 that is arranged on the junction block 29, thereby sheet metal 8 is pressed on the tension disc 6.

Insert in the connecting hole 21 that is arranged on the tension disc 6 termination of cable 17, thus realize with tension disc 6 between be electrically connected.

As mentioned above, we are illustrated according to aim of the present utility model fully, but the utility model is not limited to the foregoing description and implementation method.The practitioner of correlative technology field can carry out different variations and enforcement in the scope of technological thought permission of the present utility model.

Claims

1, a kind of solar junction box, comprise: box body, be fixedly installed on several junction blocks (29) in the described box body, be connected several diodes (7) between the described junction block (29), lead to the cable (17) of described box body outside, it is characterized in that from described junction block (29):

Described diode (7) is connected by jockey with described junction block (29), and this jockey comprises:

Possesses tension disc (6) for the location hole (11) that vertically inserts of pin (10) of diode (7);

Be fixed on the elastic limit device that being used on the described tension disc (6) tightens described pin (10).

2, solar junction box according to claim 1 is characterized in that: described elastic limit device comprises:

With the baffle plate (12) that described tension disc (6) one constitutes, this baffle plate (12) is the extension of the part hole wall of described location hole (11);

Be fixedly installed on the elastic sheet metal (8) on the described tension disc (6), an end of this sheet metal (8) pass described location hole (11) and and described baffle plate (12) between form a gap (15) that is used to hold and clamp described pin (10).

3, solar junction box according to claim 1, it is characterized in that: the both sides at described tension disc (6) are set with a pair of flank (13) upward projectedly, are formed with the groove (14) of the horizontally extending part that is used to hold described pin (10) at the top of this flank (13).