Junction box for solar battery

Abstract

A junction box for a solar battery comprises a box body in which a plurality of connector bases are fixed, and a plurality of connection assemblies detachably connected with respective ones of the plurality of connector bases. Each connection assembly comprises a bracket and elastic member. The bracket is detachably connected with a respective connector base and configured to form an accommodating space with the respective connector base, and the elastic member is received within the accommodating space. The bracket comprises a first end connectable with an external cable, and a second end connectable with a connection cable of the solar battery. The brackets of immediately adjacent connection assemblies are formed with respective via-holes for insertion of pins of a diode to couple the diode between the respective immediately adjacent connection assemblies, with the pins being capable of being clamped between the respective immediately adjacent connection assemblies.

1 . A junction box for a solar battery comprising:
 a box body in which a plurality of connector bases are fixed; and   a plurality of connection assemblies detachably connected with respective ones of the plurality of connector bases, each connection assembly comprising:
 a bracket detachably connected with a respective connector base and configured to form an accommodating space with the respective connector base, with a first end thereof being connectable with an external cable and a second end thereof being connectable with a connection cable of the solar battery; and 
 an elastic member received within the accommodating space, 
   wherein the brackets of immediately adjacent connection assemblies are formed with respective via-holes for insertion of pins of a diode to couple the diode between the respective immediately adjacent connection assemblies, the pins being capable of being clamped between the respective immediately adjacent connection assemblies.   
     
     
         2 . The junction box of  claim 1 , wherein the brackets of immediately adjacent connection assemblies are formed with respective pluralities of via-holes for insertion of pins of a plurality of diodes to couple the diodes in parallel between the respective immediately adjacent connection assemblies. 
     
     
         3 . The junction box of  claim 1 , wherein the bracket comprises:
 a middle portion including an upper portion and two sides extending from the upper portion toward a respective connector base to form the accommodating space;   a first end portion extending from the upper portion of the middle portion and configured to be connected with the external cable; and   a second end portion extending from the upper portion of the middle portion oppose the first end portion, and configured to detachably fix the connection cable of the solar battery.   
     
     
         4 . The junction box of  claim 3 , wherein the elastic member is configured to have a U-shaped body with two free ends curved toward each other. 
     
     
         5 . The junction box of  claim 3 , wherein each connector base is formed with a first positioning projection that faces the middle portion of the bracket of a respective connection assembly, and
 wherein the elastic member of each connection assembly is formed with a first positioning hole configured to engage the first positioning projection of a respective connector base.   
     
     
         6 . The junction box of  claim 3 , wherein the box body is formed therein with a plurality of bosses for respective ones of the plurality of connector bases,
 wherein the bracket is detachably connected with the respective connector base such that the first end portion of the bracket is adjacent a respective boss, and such that the first end portion is fixable to the respective boss by a screw.   
     
     
         7 . The junction box of  claim 6 , wherein the second end portion comprises:
 a first vertical portion extending from the upper portion of the middle portion;   a bottom portion connected with the first vertical portion and which is to be contacted with the respective connector base; and   a second vertical portion extending upwardly from the bottom portion.   
     
     
         8 . The junction box of  claim 7 , wherein each connector base is formed with a second positioning projection, and
 wherein the bottom portion is formed with a second positioning hole to be engaged with the second positioning projection of a respective connector base.   
     
     
         9 . The junction box of  claim 8 , wherein the second vertical portion is formed with a third positioning hole, and wherein each connection assembly further comprises:
 a σ-shaped elastic member positioned inside the second end portion; and   a U-shaped elastic member positioned between the second end portion and the respective connector base, wherein a portion of the σ-shaped elastic member penetrates through the third positioning hole to push against an arm portion of the U-shaped elastic member.   
     
     
         10 . The junction box of  claim 9 , wherein the second positioning projection has a height adapted to elastically push against a curved portion of the σ-shaped elastic member. 
     
     
         11 . The junction box of  claim 7 , wherein each connector base is formed with guide grooves, and
 wherein the second vertical portion is formed with guiding portions to be guided along the guide grooves as the bracket is fitted to the respective connector base.   
     
     
         12 . The junction box of  claim 6 , wherein the box body comprises an external side wall on which a screwing portion is formed neighboring a boss of the plurality of bosses, and wherein an end of the external cable is penetrable through the screwing portion to be fixed on the respective boss. 
     
     
         13 . The junction box of  claim 12  further comprising:
 a T-shaped stopper placed inside the screwing portion; 
 a claw-shaped cable gland fitted over a stem portion of the T-shaped plug; and 
 a screwing nut threadedly coupled to the screwing portion so that the end of the external cable is fixable on the boss via the screwing nut, the claw-shaped cable gland, the T-shaped plug and the screwing portion fitted together. 
 
     
     
         14 . The junction box of  claim 1  further comprising:
 a cover to be coupled with the box body, wherein the cover is formed with a peripheral sealing groove into which a seal ring is coupled when the cover is coupled with the box body.