Energy storage power distribution box

Abstract

The utility model relates to electrical equipment manufacturing technical field especially, and it is a kind of energy storage power distribution box, including box, power distribution module and auxiliary function component.Power distribution module and auxiliary function component take box as carrier, and power supply access and distribution are realized in cooperation.Box is assembled structure, is formed by open base body and cover plate.Cover plate is covered in open base body open end, to form closed cavity.Open base body adopts edge pressing process, and open edge is bent to form no external protruding joint edge in cavity inside;Cover plate is integrated sheet metal part, and after covering, outer surface is flush with open base body and no joint line is exposed.In this way, on the one hand, it solves the space occupation and the problem of blocking wiring caused by edge everted in traditional design, and improves space utilization, facilitates wiring and avoids the risk of knocking;On the other hand, the appearance regularity of energy storage power distribution box is optimized, and the risk of water vapor and dust invasion is reduced, which lays a good foundation for improving the sealing protection performance.

Description

Technical Field

[0001] This utility model relates to the field of electrical equipment manufacturing technology, and in particular to an energy storage power distribution box. Background Technology

[0002] In high-voltage energy storage systems, the energy storage power distribution unit, as the core high-voltage power control and protection unit, is usually integrated into the battery cluster. It connects to high-voltage components through busbars and wiring harnesses to realize key functions such as charge and discharge control, overload and short circuit protection, and high-voltage sampling. The rationality of its enclosure structure directly affects the safety of system operation, space utilization, and ease of assembly.

[0003] Currently, most energy storage power distribution boxes adopt a traditional modular structure, consisting of an open base and a cover. However, this design has several shortcomings, specifically: 1) In terms of the processing technology of the open base, the edges are generally turned outwards. This not only creates an external protruding structure, occupying the limited installation space within the battery cluster, but also obstructs the neat routing of busbars and wiring harnesses, leading to messy wiring. This reduces space utilization and affects the overall aesthetics of the box. 2) When the cover is placed over the open base, the outer surface of the cover often cannot be flush with the edge of the open base, easily forming a noticeable step or gap between them. This creates a clearly visible joint line, which inevitably affects the appearance integrity of the box. Furthermore, the gap at the joint line can become a channel for moisture and dust to enter, reducing the sealing and protection performance of the box. In addition, the protruding joint line or step may also pose a risk of impact during installation and maintenance.

[0004] In summary, technical personnel are urgently needed to solve the above problems. Utility Model Content

[0005] The purpose of this utility model is to provide an energy storage power distribution box, which aims to solve the problems in the prior art such as the open edge of the box turning outward, the external protrusion which is not conducive to wiring and takes up space, and the easy exposure of the joint line and irregular appearance after the cover plate is assembled with the box.

[0006] This utility model relates to an energy storage power distribution box, including a box body, a power distribution module, and auxiliary functional components. Both the power distribution module and the auxiliary functional components use the box body as their mounting carrier, and the two work together to achieve power access and distribution. The box body is an assembled structure, including an open base and a cover plate. The cover plate closes onto the open end of the open base to form a closed cavity. The open base uses a pressing edge process, with its open edge bent inwards towards the inside of the cavity to form a joint edge without external protrusion. The cover plate is a one-piece sheet metal part. After the cover plate is closed onto the open base, its outer surface is flush with the open base, and no joint line is exposed.

[0007] As a further improvement to the technical solution disclosed in this utility model, the open base and the cover plate are connected and fixed by means of multiple sets of fastening components.

[0008] As a further improvement to the technical solution disclosed in this utility model, the fastening assembly is composed of countersunk screws and rivet nuts; a series of mounting holes are evenly distributed along the periphery of the mating edge for inserting rivet nuts; a series of countersunk through holes are formed on the cover plate for inserting countersunk screws; the countersunk screws cooperate with the rivet nuts to connect and fix the cover plate to the open base.

[0009] As a further improvement to the technical solution disclosed in this utility model, the countersunk screw is preferably a cross countersunk screw; the rivet nut is preferably a full hexagonal waterproof rivet nut, and the material is zinc-nickel alloy.

[0010] As a further improvement to the technical solution disclosed in this utility model, the internal thread of the rivet nut is pre-coated with glue, and a glue film is formed before the countersunk screw is tightened; the glue film is screwed in with the countersunk screw to fill the gap of the thread pair.

[0011] As a further improvement to the technical solution disclosed in this utility model, the cover plate includes a rear-bent flange, a left-bent flange, a right-bent flange, and a substrate; the rear-bent flange, the left-bent flange, and the right-bent flange extend outward from the rear side wall, the left side wall, and the right side wall of the substrate, respectively, and are formed by bending at 90°; the open base is formed with a front-fitting edge, a rear-fitting edge, a left-fitting edge, and a right-fitting edge; after the cover plate is placed on the open base, the front side wall, the rear-bent flange, the left 90° bent flange, and the right 90° bent flange of the substrate are in contact with the front-fitting edge, the rear-fitting edge, the left-fitting edge, and the right-fitting edge, respectively; after the fastening components are tightened, the outer surface of the cover plate is flush with the open base, and there is no exposed joint line between the two.

[0012] As a further improvement to the technical solution disclosed in this utility model, the box also includes a sealing ring for filling and sealing the assembly gap between the cover plate and the open base.

[0013] As a further improvement to the technical solution disclosed in this utility model, an installation position for a matching sealing ring is provided on the joint edge; the width of the joint edge is W1, the width of the sealing ring is W2, then 1mm≤W1-W2≤3mm, and W2≥10mm.

[0014] As a further improvement to the technical solution disclosed in this utility model, both the open base and the cover plate are made of SGCC material, and both surfaces are coated with an outdoor powder coating; the waterproof rating of the box reaches IP55.

[0015] In practical applications, the energy storage power distribution box disclosed in this utility model can achieve at least the following beneficial technical effects, specifically: 1) The open substrate uses a pressing process to bend the open edge towards the inside of the cavity, forming a seamless joint edge without external protrusion. This solves the problem of traditional outward-facing edges occupying space and obstructing wiring; on the other hand, it improves the space utilization within the battery cluster to a certain extent, facilitates the neat layout of busbars and wiring harnesses, and avoids the risk of bumps and knocks caused by external protruding structures, making it suitable for the compact installation environment of energy storage systems. 2) The cover plate adopts an integrated sheet metal design and is equipped with an assembly adapter structure. After the cover is closed, the outer surface is flush with the edge of the open base and there is no exposed joint line. This not only greatly improves the regularity and aesthetics of the box appearance, but also reduces the gaps for moisture and dust to enter, laying the foundation for optimizing the sealing and protection performance of the box. Attached Figure Description

[0016] To more clearly illustrate the technical solutions in the embodiments of this utility model or the prior art, the drawings used in the description of the embodiments or the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of this utility model. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0017] Figure 1 This is a three-dimensional schematic diagram of the energy storage power distribution box disclosed in this utility model.

[0018] Figure 2 This is an exploded view of the energy storage power distribution box disclosed in this utility model.

[0019] Figure 3 yes Figure 1 Top view.

[0020] Figure 4 yes Figure 3 AA sectional view.

[0021] Figure 5 yes Figure 4 A magnified view of part of I.

[0022] Figure 6 yes Figure 4 A magnified view of part II.

[0023] Figure 7 yes Figure 3 BB cross-sectional view.

[0024] Figure 8 yes Figure 7 A magnified view of part III.

[0025] Figure 9 yes Figure 7 A magnified view of part IV.

[0026] Figure 10 This is a three-dimensional schematic diagram of the housing of the energy storage power distribution box disclosed in this utility model from one perspective.

[0027] Figure 11 This is a three-dimensional schematic diagram of the energy storage power distribution box disclosed in this utility model from another perspective.

[0028] Figure 12 This is a three-dimensional schematic diagram of the energy storage power distribution box disclosed in this utility model from another perspective.

[0029] Figure 13 This is a three-dimensional schematic diagram of the cover plate of the energy storage power distribution box disclosed in this utility model from one perspective.

[0030] Figure 14 This is a three-dimensional schematic diagram of the cover plate of the energy storage power distribution box disclosed in this utility model from another perspective.

[0031] Figure 15 This is a three-dimensional schematic diagram of the cover plate of the energy storage power distribution box disclosed in this utility model from another perspective.

[0032] 1-Box body; 11-Open base; 111-Mating edge; 1111-Mounting hole; 112-Front fitting edge; 113-Rear fitting edge; 114-Left fitting edge; 115-Right fitting edge; 12-Cover plate; 121-Rear 90° bend flange; 122-Left 90° bend flange; 123-Right 90° bend flange; 124-Base plate; 1241-Countersunk through hole; 13-Fastening assembly; 131-Phillips countersunk screw; 132-Full hexagonal waterproof rivet nut; 14-Sealing ring; 2-Auxiliary function components. Detailed Implementation

[0033] The present invention will be further described in detail below with reference to specific embodiments. Figure 1 , Figure 2 The diagrams show a perspective view and an exploded view of the energy storage power distribution box disclosed in this utility model. It can be seen that it mainly consists of a box body 1, a power distribution module (not shown in the diagram), and auxiliary functional components 2. The power distribution module, as the core component for power conversion and distribution, typically integrates circuit breakers, contactors, relays, and other components, all of which are fixed in place by pre-set mounting positions inside the box body 1 and form a precise circuit connection with the auxiliary functional components 2. The auxiliary functional components 2 include structures such as heat dissipation modules, monitoring sensors, or wiring terminals. The power distribution module and the auxiliary functional components 2 work together to achieve efficient connection of the entire process from power access, conversion to distribution.

[0034] like Figure 2As shown, the enclosure 1 is a modular structure, with the main body consisting of an open base 11 and a cover plate 12. The cover plate 12 closes onto the open end of the open base 11 to form a closed cavity, providing space for the internal power distribution module to be installed and protected. It is worth noting that the open base 11 is processed using a pressing edge technique, where its open edge is bent inwards towards the inside of the cavity to form a non-protruding joint edge 111 (e.g., ...). Figures 10-12 (As shown in the diagram). In this way, on the one hand, it effectively solves the problem of traditional outward-facing edges occupying installation space and obstructing the layout of surrounding busbars and wiring harnesses; on the other hand, it significantly improves the space utilization rate within the battery cluster, facilitates the orderly layout of various lines, and completely avoids the risk of collisions caused by external protruding structures, so as to perfectly adapt to the compact installation environment of energy storage systems.

[0035] The cover plate 12 is a one-piece sheet metal component, and its structural design precisely matches the open base 11. For example... Figures 13-15 As shown, the cover plate 12 includes a rear 90° bent flange 121, a left 90° bent flange 122, a right 90° bent flange 123, and a substrate 124. The rear 90° bent flange 121, the left 90° bent flange 122, and the right 90° bent flange 123 extend outward from the rear sidewall, left sidewall, and right sidewall of the substrate 124, respectively, and are formed by a 90° bend. As... Figures 10-12 As shown, the open substrate 11 is formed with a front bonding edge 112, a rear bonding edge 113, a left bonding edge 114, and a right bonding edge 115. When the cover plate 12 is closed on the open substrate 11, the front sidewall, the rear 90° bent flange 121, the left 90° bent flange 122, and the right 90° bent flange 123 of the substrate 124 will respectively be in close contact with the front bonding edge 112, the rear bonding edge 113, the left bonding edge 114, and the right bonding edge 115 (e.g., Figures 3-9 As shown in the figure, the outer surface of the cover plate 12 is flush with the open base 11, and there is no exposed joint line between the two. In this way, not only is the regularity and aesthetics of the appearance of the box 1 greatly improved, but also the gaps for moisture and dust to enter are reduced from the design structure, which lays a good foundation for the optimization of the sealing and protection performance of the box.

[0036] like Figure 1 , Figure 2 As shown, the open base 11 and the cover plate 12 are reliably connected and fixed by multiple sets of fastening components 13. The fastening components 13 are composed of Phillips head countersunk screws 131 and full hexagonal waterproof rivet nuts 132. As... Figures 10-12 As shown, a series of mounting holes 1111 are evenly distributed along the periphery of the mating edge 111 for inserting a full hexagonal waterproof rivet nut 132; as Figures 13-15As shown, a series of countersunk holes 1241 are formed on the base plate 124 of the cover plate 12 for inserting Phillips head countersunk screws 131. The Phillips head countersunk screws 131 are threadedly engaged with the full hexagonal waterproof rivet nuts 132 to complete the fixation of the cover plate 12 to the open base 11 (as shown). Figures 3-9 As shown in the image).

[0037] It should be noted that the fully hexagonal waterproof rivet nut 132 is preferably made of zinc-nickel alloy, giving it excellent corrosion resistance. Furthermore, the internal threads of the fully hexagonal waterproof rivet nut 132 are pre-coated with adhesive, which forms a film before the Phillips head countersunk screw 131 is tightened. This film, as the Phillips head countersunk screw 131 is screwed in, fills the gaps in the threaded joint, further enhancing the bonding strength and anti-loosening performance of the fastening assembly 13.

[0038] To further enhance the sealing and protection capabilities of the enclosure 1, the enclosure 1 is also equipped with a sealing ring 14 to fill and seal the assembly gap between the cover plate 12 and the open base 11 (e.g., Figures 2-9 As shown). Figure 2 , Figure 11 As shown, the mating edge 111 is provided with a mounting position for the sealing ring 14, and the width W1 of the mating edge 111 and the width W2 of the sealing ring 14 satisfy: 1mm≤W1-W2≤3mm, and W2≥10mm. This ensures that the sealing ring 14 is stably installed on the mating edge 111 and fully fills the assembly gap, thus achieving efficient sealing. Furthermore, both the open base 11 and the cover plate 12 are preferably made of SGCC material, and both surfaces are coated with an outdoor powder coating. Combined with the aforementioned sealing structure design, this allows the enclosure 1 to achieve a waterproof rating of IP55, effectively resisting moisture and dust erosion from the external environment and ensuring the long-term stable operation of its internal power distribution module.

[0039] The above description of the disclosed embodiments enables those skilled in the art to make or use the present invention. Various modifications to these embodiments will be readily apparent to those skilled in the art, and the general principles defined herein may be implemented in other embodiments without departing from the spirit or scope of the present invention. Therefore, the present invention is not to be limited to the embodiments shown herein, but is to be accorded the widest scope consistent with the principles and novel features disclosed herein.

Claims

1. An energy storage power distribution box, comprising a box body, a power distribution module, and auxiliary functional components; wherein the power distribution module and the auxiliary functional components are both mounted on the box body, and the two work together to achieve power access and distribution; the box body is a modular structure, comprising an open base and a cover plate; the cover plate closes to the open end of the open base to form a closed cavity, characterized in that, The open base is made using a pressing process, with its open edge bent towards the inside of the cavity to form a joint edge without external protrusion; the cover plate is an integral sheet metal part; after the cover plate is placed on the open base, its outer surface is flush with the open base and no joint line is exposed.

2. The energy storage power distribution box according to claim 1, characterized in that, The open base and the cover plate are connected and fixed by means of multiple sets of fastening components.

3. The energy storage power distribution box according to claim 2, characterized in that, The fastening assembly is composed of countersunk screws and rivet nuts; a series of mounting holes are evenly distributed along the periphery of the mating edge for inserting the rivet nuts; a series of countersunk through holes are formed on the cover plate for inserting the countersunk screws; the countersunk screws cooperate with the rivet nuts to connect and fix the cover plate to the open base.

4. The energy storage power distribution box according to claim 3, characterized in that, The countersunk screw is a Phillips head countersunk screw; the rivet nut is a full hexagonal waterproof rivet nut, and the material is zinc-nickel alloy.

5. The energy storage power distribution box according to claim 4, characterized in that, The internal threads of the rivet nut are pre-coated with adhesive, and an adhesive film is formed before the countersunk screw is tightened; the adhesive film is screwed in with the countersunk screw to fill the gap between the threads.

6. The energy storage power distribution box according to any one of claims 2-5, characterized in that, The cover plate includes a rear-bent flange, a left-bent flange, a right-bent flange, and a substrate. The rear-bent flange, the left-bent flange, and the right-bent flange extend outward from the rear sidewall, the left sidewall, and the right sidewall of the substrate, respectively, and are formed by bending at 90°. The open base is formed with a front-fitting edge, a rear-fitting edge, a left-fitting edge, and a right-fitting edge. After the cover plate is placed on the open base, the front sidewall of the substrate, the rear-bent flange, the left 90° bent flange, and the right 90° bent flange are in contact with the front-fitting edge, the rear-fitting edge, the left-fitting edge, and the right-fitting edge, respectively. After the fastening components are tightened, the outer surface of the cover plate is flush with the open base, and there is no exposed joint line between them.

7. The energy storage power distribution box according to claim 1, characterized in that, The housing also includes a sealing ring for filling and sealing the assembly gap between the cover plate and the open base.

8. The energy storage power distribution box according to claim 7, characterized in that, The mating edge is provided with an installation position that is adapted to the sealing ring; the width of the mating edge is W1, the width of the sealing ring is W2, then 1mm≤W1-W2≤3mm, and W2≥10mm.

9. The energy storage power distribution box according to claim 1, characterized in that, Both the open base and the cover plate are made of SGCC material, and both surfaces are coated with an outdoor powder coating; the waterproof rating of the enclosure reaches IP55.

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