CN211089586U

CN211089586U - Narrow body axial type diode junction box

Info

Publication number: CN211089586U
Application number: CN201922491207.4U
Authority: CN
Inventors: 于建平; 丁而立
Original assignee: Jiangsu Huilang Electronic Technology Co ltd
Current assignee: Jiangsu hollyson Electronic Technology Co., Ltd
Priority date: 2019-12-31
Filing date: 2019-12-31
Publication date: 2020-07-24
Anticipated expiration: 2029-12-31

Abstract

The utility model discloses a narrow body axial formula diode terminal box, including box body, apron, terminal and axial formula diode, the apron is removable to be fixed at the top of box body, and the terminal is the sheetmetal and has a plurality ofly, fixes side by side bottom in the box body is located two terminals in the outside and is used for connecting cable respectively, the box body intussuseption is filled with silica gel, and the box body is rectangular shape, all is equipped with the busbar through-hole that sets up along the length direction of box body on each terminal, and the length direction of axial formula diode perpendicular to box body sets up and connects adjacent terminal, and each axial formula diode sets up along the length direction collineation of box body with each busbar through-hole. The utility model discloses a narrow body axial formula diode terminal box, the box body is narrower, compact structure.

Description

Narrow body axial type diode junction box

Technical Field

The utility model relates to a structure of solar photovoltaic cell terminal box belongs to the photovoltaic technology field.

Background

The solar junction box is a connector between a solar cell array formed by the solar cell modules and the solar charging control device, and provides a combined connection scheme of the solar cell panel for users. The solar photovoltaic cell terminal box relies on the powerful diode of series connection to make the circuit one-way switch on, and the diode can give off a large amount of heats at the during operation, because the casing of terminal box is the working of plastics heat conductivility poor, and the heat seals can not in time dispel the heat in the casing, can lead to the interior high temperature of terminal box, influences the performance and the life of diode, simultaneously still can aggravate the ageing of working of plastics. In the prior art, the heat dissipation of the diode is improved by pouring silica gel and adding radiating fins, the effect is uneven, the structure is complex, and the manufacturing cost is increased.

Chinese patent document CN 208955991U (application number: 201821526802.6) discloses an axial diode junction box, which includes a frame, a cover plate, a nylon bottom plate, terminals and an axial diode; the terminals are metal sheets and are fixed on the nylon bottom plate side by side, and the two terminals positioned at the outermost sides are respectively used for connecting cables; the axial diode is connected with adjacent terminals, and the packaging part of the axial diode is positioned between the adjacent terminals. According to the axial diode junction box, the axial diodes are transversely arranged, the bus bars and the axial diodes are respectively distributed in different areas, and the whole volume of the junction box is large. At present, the bus bar of the solar cell module is very close to the solar cell, and the junction box with large width is arranged on the cell module and can shield the solar cell and is not suitable for use.

SUMMERY OF THE UTILITY MODEL

The to-be-solved technical problem of the utility model is to provide a width is narrow, can not shelter from the battery piece, and heat dispersion is excellent, a reliable and stable narrow body axial formula diode terminal box.

The utility model discloses a solve above-mentioned technical problem and provide following technical scheme: a narrow body axial type diode junction box comprises a box body, a cover plate, terminals and axial type diodes; the apron is removable to be fixed the top of box body, the terminal is the sheetmetal and has a plurality ofly, fixes side by side bottom in the box body, two terminals that are located the outside are used for connecting cable respectively, the box body intussuseption is filled with silica gel, the box body is rectangular shape, all is equipped with the busbar through-hole that sets up along the length direction of box body on each terminal, the length direction setting of axial diode perpendicular to box body and connection adjacent terminal, each axial diode and the length direction collineation setting of each busbar through-hole along the box body.

The two ends of the bottom of the box body in the length direction are respectively provided with a cable pressing port, and the cable pressing ports are arranged in a collinear mode with the axial diodes and the bus bar through holes in the length direction of the box body.

The bottom of above-mentioned box body is equipped with the boss, the bottom laminating of terminal is in on the boss, be equipped with spacing post on the boss, all be equipped with on each terminal with spacing post assorted spacing through-hole, spacing post passes corresponding spacing through-hole and will through self hot melt the terminal is fixed on the box body, be equipped with the spacing blend stop that is located between the adjacent terminal on the boss, the bottom of box body be equipped with the corresponding diode spacing groove of the portion of encapsulating of axial formula diode.

The terminals are provided with folded edges which are turned upwards and arranged in parallel with the box body along one side of the length direction of the box body.

Each terminal is provided with a bus bar tin soldering part which is adjacent to the bus bar through hole and is concave, the lug boss is provided with a bus bar notch corresponding to the bus bar through hole, and the lug boss is provided with a terminal limiting groove corresponding to the bus bar tin soldering part.

The terminal is provided with a limiting groove plate for limiting the pin of the axial diode and a welding part which is positioned on one side of the limiting groove plate and used for welding the pin of the axial diode.

The inner wall top of above-mentioned box body is equipped with a plurality of buckles the bottom of apron be equipped with buckle joint complex apron buckle, the bottom of box body is equipped with the handle hole corresponding with the buckle position.

All be equipped with the reinforcing plate in the inner wall four corners of above-mentioned box body, the outside bottom of box body still is equipped with the round and glues the groove.

The utility model discloses a narrow body axial formula diode terminal box still includes cable and connector, the cable slant is outer to be stretched out the box body, the one end that the cable is located the box body is fixed with the corresponding terminal crimping that is located the outside, the cable is located the other end outside the box body and links to each other with the connector.

The utility model discloses a narrow body axial formula diode terminal box still includes the ply-yarn drill, the cable of box body stretch out the department set up with ply-yarn drill assorted cable crimping mouth line draw-in groove, thereby the ply-yarn drill passes through ultrasonic bonding fixed connection and is in thereby spacing in the line draw-in groove the cable.

The utility model discloses has positive effect: the utility model discloses a box body width of narrow body axial type diode terminal box is only 30mm, can not shelter from the battery piece, and each axial type diode and each busbar through-hole set up and the dispersion along the length direction collineation of box body and arrange, effectively reduce the diode heat and interfere, and the lifting current makes, makes the structure compacter simultaneously, and the product is reliable and stable, long service life.

Drawings

The following describes the narrow axial diode junction box of the present invention with reference to the accompanying drawings.

Fig. 1 is a schematic perspective view of a narrow axial diode junction box according to an embodiment of the present invention;

FIG. 2 is an exploded view of the perspective structure of FIG. 1;

FIG. 3 is a schematic perspective view of the case of FIG. 2;

fig. 4 is a schematic perspective view of the terminal in fig. 2;

fig. 5 is a schematic perspective view of a back surface of a narrow body axial type diode junction box according to an embodiment of the present invention.

The above reference numerals are as follows:

the box body 1, boss 101, spacing blend stop 103, cable pressure interface 104, diode spacing groove 105, spacing post 106, busbar notch 107, terminal spacing groove 108, buckle 109, handle hole 110, reinforcing plate 111, gluey groove 112, line card groove 113, apron 2, apron buckle 21, terminal 3, spacing through-hole 31, busbar through-hole 32, busbar soldering tin portion 33, spacing frid 34, welding part 35, hem 36, axial diode 4, encapsulating portion 41, pin 42, cable 5, line card 6.

Detailed Description

Examples

Referring to fig. 1 to 5, the narrow-body axial diode junction box of the present embodiment includes a box body 1, a cover plate 2, a terminal 3 and an axial diode 4; apron 2 is removable to be fixed at the top of box body 1, and terminal 3 is the sheetmetal and has a plurality ofly, fixes the bottom in box body 1 side by side, and two terminals 3 that are located the outside are used for connecting cable 5 respectively, and the intussuseption of box body 1 is filled with silica gel.

The box body 1 is rectangular shape, all is equipped with the busbar through-hole 32 that sets up along the length direction of box body 1 on each terminal 3, and adjacent terminal 3 is just connected in the length direction setting of axial diode 4 perpendicular to box body 1, and each axial diode 4 sets up along the length direction collineation of box body 1 with each busbar through-hole 32.

The two ends of the bottom of the box body 1 in the length direction are respectively provided with a cable pressing port 104, and the cable pressing ports 104, the axial diodes 4 and the bus bar through holes 32 are arranged in a collinear manner in the length direction of the box body 1.

The bottom of box body 1 is equipped with boss 101, the bottom laminating of terminal 3 is on boss 101, be equipped with spacing post 106 on the boss 101, all be equipped with on each terminal 3 with spacing post 106 assorted spacing through-hole 31, spacing post 106 passes corresponding spacing through-hole 31 and fixes terminal 3 on box body 1 through self hot melt, be equipped with the spacing blend stop 103 that is located between the adjacent terminal 3 on the boss 101, the bottom of box body 1 is equipped with the corresponding diode spacing groove 105 with axial diode 4's the portion 41 that encapsulates.

The terminal 3 is provided with a folded edge 36 which is folded upwards and arranged parallel to the box body 1 along one side of the length direction of the box body 1.

Each terminal 3 is provided with a bus bar soldering tin portion 33 which is arranged adjacent to the bus bar through hole 32 and is concave, the boss 101 is provided with a bus bar notch 107 corresponding to the bus bar through hole 32, and the boss 101 is provided with a terminal limiting groove 108 corresponding to the bus bar soldering tin portion 33.

The terminal 3 is provided with a limiting groove plate 34 for limiting the pin 42 of the axial diode 4 and a welding part 35 located on one side of the limiting groove plate 34 and used for welding the pin 42 of the axial diode 4.

The bottom of the cover plate 2 with a plurality of buckles 109 arranged on the top of the inner wall of the box body 1 is provided with a cover plate buckle 21 matched with the buckles 109 in a clamping manner, and the bottom of the box body 1 is provided with an operation hole 110 corresponding to the buckle 109.

The inner wall four corners of box body 1 all is equipped with reinforcing plate 111, and the outside bottom of box body 1 still is equipped with round gluey groove 112.

The narrow body axial type diode terminal box of this embodiment still includes cable 5 and connector, and box body 1 is stretched out outward to the slope of cable 5, and the one end that cable 5 is located box body 1 is fixed with the 3 crimping of corresponding terminal that are located the outside, and the other end that cable 5 is located box body 1 outside links to each other with the connector.

The narrow axial diode junction box of this embodiment still includes ply-yarn drill 6, and the cable 5 department of stretching out of box body 1 sets up with ply-yarn drill 6 assorted cable pressure interface line draw-in groove 113, thereby ply-yarn drill 6 passes through ultrasonic welding fixed connection limiting cable 5 in the line draw-in groove 113.

When the narrow axial diode junction box is installed, the axial diode 4 is welded on the terminal 3, the terminal 3 is fixed on the bottom of the inner side of the box body 1 in a hot melting mode, the cable 5 is pressed on the terminal 3, and the wire clamp 6 is installed. And (3) mounting the bus bar during later-stage field construction, pouring silica gel, and covering the cover plate 2.

The box body 1, the cover plate 2 and the wire clip 6 are made of polyphenyl ether (PPE), and the terminal 3 is made of nickel-plated brass.

It should be understood that the above-described embodiments are merely examples provided for clearly illustrating the embodiments of the present invention, and are not intended to limit the embodiments of the present invention. Other variations and modifications will be apparent to persons skilled in the art in light of the above description. And are neither required nor exhaustive of all embodiments. And such obvious changes and modifications which fall within the spirit of the invention are deemed to be covered by the scope of the invention.

Claims

1. A narrow body axial type diode junction box comprises a box body (1), a cover plate (2), a terminal (3) and an axial type diode (4); apron (2) is removable to be fixed the top of box body (1), terminal (3) are the sheetmetal and have a plurality ofly, fix side by side bottom in box body (1), two terminals (3) that are located the outside are used for connecting cable (5) respectively, box body (1) intussuseption is filled with silica gel, its characterized in that: the box body (1) is rectangular shape, all is equipped with on each terminal (3) along the busbar through-hole (32) of the length direction setting of box body (1), the length direction setting of axial diode (4) perpendicular to box body (1) just connects adjacent terminal (3), and the length direction collineation setting of box body (1) is followed with each busbar through-hole (32) in each axial diode (4).

2. The narrow body axial diode junction box of claim 1, wherein: the cable pressure connector (104) is arranged at the two ends of the bottom of the box body (1) in the length direction, and the cable pressure connector (104) and each axial diode (4) and each bus bar through hole (32) are arranged in a collinear mode in the length direction of the box body (1).

3. The narrow body axial diode junction box of claim 2, wherein: the bottom of box body (1) is equipped with boss (101), the bottom laminating of terminal (3) is in on boss (101), be equipped with spacing post (106) on boss (101), all be equipped with on each terminal (3) with spacing post (106) assorted spacing through-hole (31), spacing post (106) pass corresponding spacing through-hole (31) and will through self hot melt terminal (3) are fixed on box body (1), be equipped with spacing blend stop (103) that are located between adjacent terminal (3) on boss (101), the bottom of box body (1) be equipped with corresponding diode spacing groove (105) of the portion (41) of encapsulating of axial diode (4).

4. The narrow body axial diode junction box of claim 3, wherein: and a folded edge (36) which is folded upwards and arranged in parallel with the box body (1) is arranged on one side of the terminal (3) along the length direction of the box body (1).

5. The narrow body axial diode junction box of claim 3, wherein: each terminal (3) is provided with a bus bar tin soldering part (33) which is adjacent to the bus bar through hole (32) and is concave, a bus bar notch (107) corresponding to the bus bar through hole (32) is arranged on the boss (101), and a terminal limiting groove (108) corresponding to the bus bar tin soldering part (33) is arranged on the boss (101).

6. The narrow body axial diode junction box of claim 2, wherein: and the terminal (3) is provided with a limiting groove plate (34) used for limiting the pins (42) of the axial diode (4) and a welding part (35) which is positioned on one side of the limiting groove plate (34) and used for welding the pins (42) of the axial diode (4).

7. The narrow body axial diode junction box of any one of claims 1 to 6, wherein: the inner wall top of box body (1) is equipped with a plurality of buckles (109) the bottom of apron (2) be equipped with buckle (109) joint complex apron buckle (21), the bottom of box body (1) is equipped with and buckles (109) position corresponding handle hole (110).

8. The narrow body axial diode junction box of any one of claims 1 to 6, wherein: the inner wall four corners of box body (1) all are equipped with reinforcing plate (111), the outside bottom of box body (1) still is equipped with round gluey groove (112).

9. The narrow body axial diode junction box of any one of claims 1 to 6, wherein: the cable-type terminal box comprises a box body (1), and is characterized by further comprising a cable (5) and a connector, wherein the cable (5) obliquely extends out of the box body (1), one end, located in the box body (1), of the cable (5) is fixedly connected with a corresponding terminal (3) located on the outermost side in a compression joint mode, and the other end, located outside the box body (1), of the cable (5) is connected with the connector.

10. The narrow body axial diode junction box of any one of claims 1 to 6, wherein: still include ply-yarn drill (6), cable (5) of box body (1) stretch out the department and offer with ply-yarn drill (6) assorted cable pressure joint mouth line draw-in groove (113), thereby ply-yarn drill (6) pass through ultrasonic welding fixed connection in line draw-in groove (113) spacing cable (5).