Compact combiner box

Abstract

The utility model relates to the field of energy storage equipment, in particular to a compact combiner box, which comprises a box body, an input end waterproof joint, an output end waterproof joint and a grounding wire waterproof joint, the interior of the box body is hollow, and the side wall of the box body is provided with an opening; the box cover is hinged to the side wall, with the opening, of the box body; and the fixed support is bent to form more than two mounting parts which are arranged in a stepped and staggered manner, copper bars are locked on the mounting parts, and the copper bars are respectively connected with the input end waterproof joint, the output end waterproof joint and the grounding wire waterproof joint. According to the compact combiner box of the utility model, a stepped installation structure is formed through the bent fixed support, and the parallel copper bars are distributed up and down in a staggered manner, so that the overall size and the structure are more compact, the overall layout and installation of energy storage equipment are facilitated, the arrangement of the energy storage equipment is facilitated through the straight-up and straight-down structural design, and the wiring is more reasonable; and meanwhile, the requirement on field installation space is reduced.

Description

TECHNICAL FIELD

[0001] The utility model relates to the field of energy storage equipment, especially to a compact busbar box. BACKGROUND

[0002] In recent years, with the continuous development of energy storage equipment, the power and function requirements of energy storage equipment are getting higher and higher, and the busbar box as the equipment matched with the energy storage box has become the first choice of everyone. The structure of the busbar box can refer to the Chinese utility model patent with the application number CN201520027165.8 and the name of a photovoltaic busbar box with a bending copper bar structure. However, due to the continuous superposition of power, the current formed by parallel connection is getting larger and larger, and the volume of the busbar box is also getting larger, the structure is complex, and the overall arrangement of the energy storage equipment is affected. UTILITY MODEL CONTENTS

[0003] The technical problem to be solved by the utility model is to provide a compact busbar box with reasonable layout and space saving.

[0004] In order to solve the above technical problem, the utility model adopts the technical scheme of a compact busbar box, which comprises:

[0005] The box body is hollow inside and has an open side wall, and the wall plate of the box body is provided with an input end waterproof joint, an output end waterproof joint and a grounding wire waterproof joint;

[0006] The box cover is hinged to the side wall with an opening of the box body.

[0007] The fixing support is formed by bending into two or more mounting parts arranged in a staggered step, and the copper bars are locked on the mounting parts and connected with the input end waterproof joint, the output end waterproof joint and the grounding wire waterproof joint respectively.

[0008] Further, the fixing support is provided with an insulating column for mounting the copper bar.

[0009] Further, the fixing support is provided with a grounding screw, and the box body and the box cover are provided with a grounding wire bundle connected with the grounding bolt.

[0010] Further, one end of the box cover is hinged to the box body through a hinge, and the other end of the box cover is provided with a cabinet door lock connected with the box body.

[0011] Further, the box cover is provided with a waterproof rubber pad abutting against the side wall with an opening of the box body.

[0012] Further, the box cover is provided with a grounding bolt.

[0013] Further, the outer wall of the box cover is provided with a hanging ear, and the hanging ear is provided with a lock hole.

[0014] Further, the copper bars are locked on the fixing support through fixing bolts.

[0015] Further, the copper bar is provided with wire harness fixing screws.

[0016] Further, the box cover is provided with a waterproof folded edge around the opening.

[0017] The compact busbar has the advantages that: the compact busbar is provided with the fixed support formed by bending, a stepped mounting structure is formed, the upper and lower staggered distribution design of the parallel copper bars is realized, the overall size and structure are more compact, the overall layout and installation of the energy storage equipment are facilitated, the structure design of the straight-up and straight-down structure facilitates the arrangement of the energy storage equipment, the wiring is more reasonable, and the requirement for the installation space on site is reduced. BRIEF DESCRIPTION OF DRAWINGS

[0018] Figure 1 Fig. 1 is a structural schematic view of a compact busbar;

[0019] Figure 2 Fig. 2 is an exploded schematic view of the compact busbar;

[0020] Figure 3 Fig. 3 is another structural schematic view of the compact busbar;

[0021] Figure 4 Fig. 4 is another structural schematic view of the compact busbar;

[0022] Figure 5 Fig. 5 is another structural schematic view of the compact busbar;

[0023] Figure 6 Fig. 6 is another structural schematic view of the compact busbar;

[0024] Label explanation:

[0025] 1, box body; 11, input end waterproof joint; 12, output end waterproof joint; 13, ground wire waterproof joint; 14, ground wire harness; 2, box cover; 21, hinge; 22, cabinet door lock; 23, waterproof rubber pad; 24, grounding bolt; 25, ear; 251, lock hole; 26, waterproof folded edge; 3, fixed support; 31, mounting part; 32, insulating column; 33, grounding screw; 4, copper bar; 41, fixing bolt; 42, wire harness fixing screw. DETAILED DESCRIPTION

[0026] To make the technical content, purposes and effects of the utility model more clear, the following will be described in detail in combination with the embodiments and the drawings.

[0027] Please refer to Figures 1 to 6 The compact busbar of the utility model comprises:

[0028] The box body 1 is internally hollow and has an open side wall, and the wall plate of the box body 1 is provided with an input waterproof connector 11, an output waterproof connector 12 and a ground wire waterproof connector 13.

[0029] The box cover 2 is hinged to the side wall with an opening of the box body 1.

[0030] The fixing support 3 is formed by bending to form two or more mounting portions 31 arranged in a staggered step manner, and a copper bar 4 is locked and fixed on the mounting portion 31, and the copper bar 4 is connected with the input waterproof connector 11, the output waterproof connector 12 and the ground wire waterproof connector 13 respectively.

[0031] From the above description, the utility model has the beneficial effects that a compact busbar box is formed by the fixed support 3 formed by bending, a staggered step mounting structure is realized, the upper and lower staggered layer distribution design of the parallel copper bar 4 is realized, the overall size and structure are more compact, the overall layout installation of the energy storage equipment is facilitated, the structure design of the straight up and down facilitates the arrangement of the energy storage equipment, the wiring is more reasonable, and the requirement for the installation space on site is reduced.

[0032] The fixed support 3 adopts a staggered layer structure design, fully utilizes the longitudinal depth height, realizes the compactness of the layout of the product, greatly improves the utilization rate of the space in the box body 1, and thus reduces the overall size. The upper surface of the box body 1 is provided with an output waterproof gland (4 out), the lower surface of the box body 1 is provided with an input waterproof gland (7 in), and the input and output waterproof glands of the equipment ground wire bundle 14 are arranged on the two sides of the lower surface, the equipotential grounding of the overall equipment is realized, and the equipment is safer.

[0033] The box body 1 is provided with an allowable 200Ah large current input and output hole allowing the 7 in 4 out parallel scheme on the upper and lower surfaces, the connection part is closed and treated by the IP68 waterproof gland scheme when the connection wire bundle is connected, high protection is realized. When the maximum parallel scheme is not used, that is, a hole position is not used, a waterproof silica gel plug can be installed, and the same closed characteristic is also realized.

[0034] Since the maximum 200Ah parallel scheme is adopted, the wire diameter of the connection wire bundle is very large, causing the wire bundle bending radius to be huge (usually 3 times the wire diameter), which causes the energy storage overall system arrangement scheme and the size of the installation site space to cause the equipment to be unable to be installed. Therefore, the straight up and down staggered layer arrangement scheme can avoid the problem of the wire bundle bending radius affecting the overall size of the busbar box and the installation space, and is a preferred solution scheme of a compact arrangement scheme.

[0035] In an optional embodiment, the fixed support 3 is provided with an insulating column 32 for mounting the copper bar 4.

[0036] From the above description, the rivet screw on the fixed support 3 is convenient for locking the insulating column 32, and then the copper bar 4 is fixed on the insulating column 32 through the bolt locking mode to play the role of insulation protection.

[0037] In an optional embodiment, the fixed support 3 is provided with a grounding screw 33, and the box body 1 and the box cover 2 are provided with a grounding wire harness 14 connected with the grounding bolt 24.

[0038] From the above description, the box body 1 and the box cover 2 are provided with the grounding wire harness 14, which is convenient for equipotential connection between the box body 1 and the box cover 2.

[0039] In an optional embodiment, one end of the box cover 2 is hinged to the box body 1 through a hinge 21, and the other end of the box cover 2 is provided with a cabinet door lock 22 locked with the box body 1.

[0040] From the above description, the hinge 21 cooperates with the cabinet door lock 22 to realize the opening and closing function of the box cover 2.

[0041] In an optional embodiment, the box cover 2 is provided with a waterproof rubber pad 23 abutting against the side wall with an opening of the box body 1.

[0042] From the above description, large power equipment often needs to be installed outdoors and the like, so the current combiner box needs to have a waterproof function. In the present scheme, a waterproof sealing gasket is pasted on the box cover 2, so that the box cover 2 is completely sealed when the box cover 2 is closed with the box body 1. The box body 1 is designed with high protection level, so that the product can be installed in outdoor environment.

[0043] In an optional embodiment, the box cover 2 is provided with a grounding bolt 24.

[0044] From the above description, the fixed support 3 is provided with the grounding bolt 24 at the same time, which is convenient for connecting the input and output end grounding wire harness 14 to realize equipotential function of the whole energy storage system and improve product safety.

[0045] In an optional embodiment, the outer wall of the box cover 2 is provided with a lug 25, and the lug 25 is provided with a lock hole 251.

[0046] From the above description, the lug 25 structure is provided on the left and right sides of the box body 1, which is used for locking the expansion bolt to fix the box body 1 on the wall.

[0047] In an optional embodiment, the copper bar 4 is locked on the fixed support 3 through a fixing bolt 41.

[0048] In an optional embodiment, the copper bar 4 is provided with a wire harness fixing screw 42.

[0049] In an optional embodiment, the box cover 2 is provided with a waterproof folding edge 26 around the opening.

[0050] As can be seen from the above description, a waterproof folded edge 26 structure is provided on the upper edge of the box body 1, so that when the box cover 2 is closed with the box body 1, the folded edge structure on the upper edge of the box body 1 can fully fit and compress the sealing gasket to achieve the sealing of the box body 1.

[0051] Please refer to Figures 1 to 6 As shown, Embodiment 1 of this utility model is: a compact combiner box, comprising:

[0052] The enclosure 1 is hollow inside and has openings on the side walls. The wall panels of the enclosure 1 are equipped with an input waterproof connector 11, an output waterproof connector 12 and a grounding wire waterproof connector 13.

[0053] The lid 2 is hinged to the side wall of the body 1, which has an opening;

[0054] The fixed bracket 3 is bent to form two or more mounting parts 31 arranged in a stepped staggered manner. Copper busbars 4 are locked onto the mounting parts 31. The copper busbars 4 are respectively connected to the input waterproof connector 11, the output waterproof connector 12 and the grounding waterproof connector 13.

[0055] The fixed bracket 3 is equipped with insulating posts 32 for mounting copper busbars 4. The fixed bracket 3 is equipped with grounding screws 33, and a grounding harness 14 connected to grounding bolts 24 is provided between the enclosure 1 and the cover 2. One end of the cover 2 is hinged to the enclosure 1 via a hinge 21, and the other end of the cover 2 is equipped with a cabinet door lock 22 that locks onto the enclosure 1. The cover 2 is equipped with a waterproof gasket 23 that abuts against the side wall of the enclosure 1 with an opening. The cover 2 is equipped with grounding bolts 24. The outer wall of the cover 2 is equipped with hanging ears 25, and the hanging ears 25 have lock holes 251. The copper busbar 4 is secured to the fixed bracket 3 by fixing bolts 41. The copper busbar 4 is equipped with harness fixing screws 42. The cover 2 has waterproof folded edges 26 around the opening.

[0056] In summary, the compact combiner box of this utility model forms a stepped installation structure through a bent and fixed bracket, realizing a staggered distribution design of parallel copper busbars, making the overall size and structure more compact, which facilitates the overall layout and installation of energy storage equipment. The straight-up and down structural design facilitates the arrangement of energy storage equipment and makes the wiring more reasonable, while reducing the requirements for on-site installation space.

[0057] The above description is merely an embodiment of this utility model and does not limit the patent scope of this utility model. Any equivalent modifications made based on the content of this utility model specification and drawings, or direct or indirect applications in related technical fields, are similarly included within the patent protection scope of this utility model.

Claims

1. A compact busbar box characterized by, The utility model relates to a waterproof box, comprising: a box body, which is hollow inside and has a side wall with an opening, the wall plate of the box body being provided with an input waterproof connector, an output waterproof connector and a ground wire waterproof connector; a box cover, which is hinged to the side wall of the box body with the opening; a fixing support, which is formed by bending into two or more mounting portions arranged in a staggered step manner, and a copper bar is locked to the mounting portions, the copper bar being connected to the input waterproof connector, the output waterproof connector and the ground wire waterproof connector respectively.

2. The compact busbar box according to claim 1, characterized in that The fixing support is provided with an insulating column for mounting the copper bar.

3. The compact busbar box according to claim 1, characterized in that The fixing support is provided with a grounding screw, and the box body and the box cover are provided with a ground wire harness connected to the grounding screw.

4. The compact busbar box of claim 1, wherein, One end of the box cover is hinged to the box body through a hinge, and the other end of the box cover is provided with a cabinet door lock connected to the box body.

5. The compact busbar box of claim 1, wherein, The box cover is provided with a waterproof rubber pad abutting against the side wall of the box body with the opening.

6. The compact busbar box of claim 1, wherein, The box cover is provided with a grounding screw.

7. The compact busbar box of claim 1, wherein, The outer wall of the box cover is provided with a hanging ear, and the hanging ear is provided with a lock hole.

8. The compact busbar box of claim 1, wherein, The copper bar is locked to the fixing support through a fixing screw.

9. The compact busbar box of claim 1, wherein, The copper bar is provided with a harness fixing screw.

10. The compact busbar box of claim 1, wherein, The box cover is provided with a waterproof folded edge around the opening.

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