CN101388530B

CN101388530B - Wiring box

Info

Publication number: CN101388530B
Application number: CN2008100627968A
Authority: CN
Inventors: 励国庆
Original assignee: 励国庆
Current assignee: Zhejiang Renhe Solar Technology Co., Ltd.
Priority date: 2008-07-04
Filing date: 2008-07-04
Publication date: 2010-04-14
Anticipated expiration: 2028-07-04
Also published as: CN101388530A

Abstract

The invention relates to a junction box, which comprises a box cover, a box body and a plurality of parallel metal connectors, and is characterized in that the box body is divided into two chambers by a baffle plate, and the two chambers are respectively a closing chamber and a radiating chamber, wherein a plurality of mounting grooves are mounted in the closing cavity in parallel near the baffle plate, the metal connectors are inlayed in the mounting grooves, the bottom surface of the closing cavity which is faraway from the baffle plate is provided with a hole, a hole is arranged on the baffle plate which is corresponding to the metal connectors, the number of the box cover is two, and the two box covers are respectively a closing cover and a radiating cover, and the closing cover and the radiating cover are matched with the closing cavity and the radiating cavity, and radiating holes are arranged on the lateral surface of the radiating cavity or the radiating cover. The junction box can radiate the portion which needs to radiate in the box body, and close the portion which needs to be closed, optimizes the property of the junction box, and can effectively improve the service span of the junction box.

Description

A kind of terminal box

Technical field

The present invention relates to a kind of is the electrical accessorie of electric energy with conversion of solar energy, particularly a kind of terminal box that connects electricity sun energy battery module and other parts of solar energy system.

Background technology

Many groups solar module that solar power generation adopts matrix form to arrange converts daylight to electric energy, and each group solar module is connected with terminal box, and terminal box is connected with the other parts of solar power system again.The reasonability of this terminal box Design of Mechanical Structure and the quality of quality are directly connected to the efficient of electrical transmission.Because this terminal box long-term work is out of doors, to having relatively high expectations of seal and thermal diffusivity, existing this class terminal box, be generally airtight box fully,, can be fit to field work though have higher sealing, but do not have radiator structure, influence the useful life of box and the efficient of electrical transmission.

Chinese patent 200720107421.X discloses a kind of quick connector, it includes box body, lid, junction block, metal connecting piece group, wiring joint, it is characterized in that being provided with heat radiating metal spare in the described junction block surrounding space, heat radiating metal spare contacts with the terminal pin or the metal connecting piece group of diode respectively by connecting portion, is shaped on the wiring perforate on heat radiating metal spare surface.The heat dissipation metal plate complex structure that this scheme adopts is installed inconveniently, has also increased the cost of terminal box, and this heat dissipation metal plate and diode and metal connecting piece group be arranged in same airtight box, and radiating effect is unsatisfactory.

This class terminal box of the prior art, diode all places same chamber with the metal connecting piece group that is connected, and the heat that diode produces easily conduction raises the temperature of metal connecting piece group to the metal connecting piece group, influences the efficient of electrical transmission.

Summary of the invention

The technical problem to be solved in the present invention provides the position heat radiation of this heat radiation in a kind of box, and this airtight position is airtight, and useful life is than long terminal box.

For solving this technical problem, the technical solution used in the present invention is as follows:

A kind of terminal box, comprise lid, box body, several metal connectors arranged side by side, it is characterized in that described box body is divided into two chambers by dividing plate, be respectively closed chamber and heat radiation chamber, be arranged side by side several mounting grooves near bulkhead sides in the closed chamber, described metal connector is embedded in the mounting groove, and closed chamber is provided with the hole away from the bottom surface of bulkhead sides, is provided with the hole with metal connector corresponding position on the dividing plate; Described lid is two, is respectively closed cover and dissipating cover, matches with corresponding closed chamber and heat radiation chamber, and the side or the dissipating cover in heat radiation chamber are provided with louvre.

Further improve, be provided with the injecting glue groove near the dividing plate place along the dividing plate length direction in the described heat radiation chamber.

Further improve, described metal connector arranged side by side is connected with pipe shape metal connection pin on the wherein outermost metal connector again, and the closed chamber side of the bearing of trend of pipe shape metal connection pin is provided with wiring hole.

Further improve, described dissipating cover is provided with water bar.

Described metal connector is made up of Connection Block, conducting strip and compressing tablet, Connection Block is that sheet metal two ends are bent into two card bases that match with described mounting groove mutually down, both sides upwards are bent into the sidewall of two symmetries, the sidewall centre position is provided with square recess, this square recess one side is provided with aperture, the position of aperture is higher than the base of square recess, and opposite side is away from the square notch end opening being arranged; The conducting strip surface laterally is provided with groove, both sides are provided with the prominent head of two symmetries, the width of conducting strip is less than the distance between two sidewalls, the conducting strip width adds the length of two prominent heads greater than the distance between two sidewalls, the conducting strip top has crotch backward, crotch matches with opening, and conducting strip is placed in the space that forms between two sidewalls; Compressing tablet is a sheet metal, the both sides of one end are provided with the prominent head of two symmetries, the size of prominent head matches with the aperture on the sidewall, the width of compressing tablet adds that the length of two prominent heads is greater than the distance between two sidewalls, the length of compressing tablet equals aperture on the sidewall to the vertical range between the base of conducting strip upper groove, and is rotatable when compressing tablet is installed on the Connection Block.

Because above-mentioned terminal box is divided into two chambers, diode can be made module and place the heat radiation chamber, the metal connector places in the closed chamber, with be connected by the hole on the plate washer between the diode, in the injecting glue groove, inject marine glue during use, make between diode and the metal connector to separate fully, the heat that diode produces is by the louvre on the heat radiation chamber, be dispersed into outside the box, can not conduct, can not influence the operate as normal of metal connector to the metal connector.This terminal box can be accomplished the position heat radiation of this heat radiation in the box, and this airtight position is airtight, has optimized the performance of terminal box, can effectively improve the useful life of terminal box.

Description of drawings

Fig. 1: the outside schematic diagram of terminal box.

Fig. 2: lid structure chart.

Fig. 3: box body structure figure.

Fig. 4: metal connector schematic diagram.

Fig. 5: Connection Block structure chart.

Fig. 6: conducting strip structure figure.

Fig. 7: compressing tablet structure chart.

Fig. 8: diode template and metal connector connection diagram.

Fig. 9: the box body that is equipped with diode template and metal connector.

Embodiment

With reference to Fig. 1, Fig. 2, Fig. 3, Fig. 4, Fig. 5, Fig. 6, Fig. 7, Fig. 8, Fig. 9.

Embodiment one:

Present embodiment relates to a kind of terminal box, comprise lid 1, box body 2, several metal connectors 3 arranged side by side, box body 2 is divided into two chambers by dividing plate 4, be respectively closed chamber 21 and heat radiation chamber 22, be arranged side by side several mounting grooves 211 near dividing plate 4 sides in the closed chamber 21, described metal connector 3 is embedded in the mounting groove 211, and closed chamber 21 is provided with hole 212 away from the bottom surface of dividing plate 4 sides, is provided with hole 41 with metal connector 3 corresponding positions on the dividing plate 4; Described lid 1 is two, is respectively closed cover 11 and dissipating cover 12, matches with corresponding closed chamber 21 and heat radiation chamber 22, and the side or the dissipating cover 12 in heat radiation chamber 22 are provided with louvre 121.Dissipating cover 12 is provided with water bar (not marking among the figure).

Metal connector 3 is made up of Connection Block 31, conducting strip 32 and compressing tablet 33, Connection Block 31 is that sheet metal two ends are bent into two card bases 311 that match with described mounting groove 211 mutually down, both sides upwards are bent into the sidewall 312 of two symmetries, sidewall 312 centre positions are provided with square recess 313, these square recess 313 1 sides are provided with aperture 314, the position of aperture 314 is higher than the base of square recess 313, and opposite side is away from square recess 313 ends opening 315 being arranged; Conducting strip 32 surfaces laterally are provided with groove 321, both sides are provided with prominent 322 of two symmetries, the width of conducting strip 32 is less than the distance of 312 of two sidewalls, conducting strip 32 width add two prominent 322 length greater than the distance between two sidewalls 312, conducting strip 32 tops have crotch 323 backward, crotch 323 matches with opening 315, and conducting strip 32 is placed in the space that forms between two sidewalls 312; Compressing tablet 33 is a sheet metal, the both sides of one end are provided with prominent 331 of two symmetries, prominent 331 size matches with the aperture 314 on the sidewall 312, prominent 331 with aperture 314 between have certain friction during rotation, the width of compressing tablet 33 adds that two prominent 331 length is greater than the distance between two sidewalls 312, the length of compressing tablet 33 equals aperture 314 on the sidewall 312 to the vertical range between the base of conducting strip 32 upper grooves 321, and is rotatable when compressing tablet 33 is installed on the Connection Block 31.Prominent 331 of two symmetries with aperture 314 between have certain friction during rotation, compressing tablet 33 can not rotated easily, can push down conducting strip 32 firmly.Adopt metal connector 3 installation and removal of this structure all more convenient, the architectural feature of conducting strip 32 makes it be not easy to skid off Connection Block 31.

Embodiment 2:

Embodiment 2 is further improved on embodiment 1, and its improvements are to dispel the heat and are provided with injecting glue groove 221 near dividing plate 4 places along dividing plate 4 length directions in the chamber 22.

The effect that this injecting glue groove 221 is set is, when diode template 5 places heat radiation chamber 22 and passes hole 41 on the dividing plate 4 when being connected with metal connector 3, in injecting glue groove 221, inject marine glue, hole 41 is airtight, not only played waterproof action but also can make diode template 5 and metal connector 3 between accomplish airtight fully.

Embodiment 3

Embodiment 3 is further improved on the basis of embodiment 1, and its improvements are to be connected with pipe shape metal connection pin 34 on the outermost metal connector 3, and closed chamber 21 sides of the bearing of trend of pipe shape metal connection pin 34 are provided with wiring hole 213.Adopt this scheme, connecting line is the shortest to the distance of pipe shape metal connection pin 34, and connecting line can pierce in the pipe when connecting, couple together convenient firmly.

Embodiment 4

When this terminal box is used, the busbar on the solar battery group is passed the hole 212 of closed chamber 21 bottom surfaces, place on the metal connector 3, rotate compressing tablet 33 again it is pushed down by between Connection Block 31 and the conducting strip 32.When extracting busbar,, unclamp conducting strip 2 as long as firmly rotate compressing tablet 33.The diode template is placed heat radiation chamber 22, lead-foot-line on the diode template is passed hole 41 usefulness to be placed between Connection Block 31 and the conducting strip 32 and pushes down with compressing tablet 33, marine glue is injected injecting glue groove 221, and connecting line passes connecting hole 213 and is connected with pipe shape metal connection pin 34.Cover closed cover 11 and dissipating cover 12 again.

Claims

1. terminal box, comprise lid (1), box body (2), several metal connectors (3) arranged side by side, it is characterized in that described box body (2) is divided into two chambers by dividing plate (4), be respectively closed chamber (21) and heat radiation chamber (22), be arranged side by side several mounting grooves (211) near dividing plate (4) side in the closed chamber (21), described metal connector (3) is embedded in the mounting groove (211), closed chamber (21) is provided with hole (212) away from the bottom surface of dividing plate (4) side, and dividing plate (4) is gone up and metal connector (3) corresponding position is provided with hole (41); Described lid (1) is two, is respectively closed cover (11) and dissipating cover (12), matches with corresponding closed chamber (21) and heat radiation chamber (22), and the side or the dissipating cover (12) in heat radiation chamber (22) are provided with louvre (121).

2. terminal box according to claim 1 is characterized in that locating to be provided with injecting glue groove (221) along dividing plate (4) length direction near dividing plate (4) in the described heat radiation chamber (22).

3. terminal box according to claim 1, it is characterized in that described metal connector (3) arranged side by side, be connected with pipe shape metal connection pin (34) on the wherein outermost metal connector (3), closed chamber (21) side of the bearing of trend of pipe shape metal connection pin (34) is provided with wiring hole (213).

4. terminal box according to claim 1 is characterized in that described dissipating cover (12) is provided with water bar.

5. according to each described terminal box of claim 1 to 4, it is characterized in that described metal connector (3) is by Connection Block (31), conducting strip (32) and compressing tablet (33) are formed, Connection Block (31) is that sheet metal two ends are bent into two card bases (311) that match with described mounting groove (211) mutually down, both sides upwards are bent into the sidewall (312) of two symmetries, sidewall (312) centre position is provided with square recess (313), these square recess (313) one sides are provided with aperture (314), the position of aperture (314) is higher than the base of square recess (313), and opposite side is away from square recess (313) end opening (315) being arranged; Conducting strip (32) surface laterally is provided with groove (321), both sides are provided with the prominent head (322) of two symmetries, the width of conducting strip (32) is less than the distance between two sidewalls (312), conducting strip (32) width adds the length of two prominent heads (322) greater than the distance between two sidewalls (312), conducting strip (32) top has crotch (323) backward, crotch (323) matches with opening (315), and conducting strip (32) is placed in the space that forms between two sidewalls (312); Compressing tablet (33) is a sheet metal, the both sides of one end are provided with the prominent head (331) of two symmetries, the size of prominent head (331) matches with the aperture (314) on the sidewall (312), the width of compressing tablet (33) adds that the length of two prominent heads (331) is greater than the distance between two sidewalls (312), the length of compressing tablet (33) equals aperture (314) on the sidewall (312) to the vertical range between the base of conducting strip (32) upper groove (321), and it is rotatable when going up that compressing tablet (33) is installed in Connection Block (31).