Novel aircraft distribution box
By using a modular box structure and support column design, the problems of large size, heavy weight and loose layout of existing aviation power distribution boxes are solved, achieving high space utilization and mechanical strength, and meeting the diverse needs of components.
Patent Information
- Application Number
- CN202520291681.5
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2025-02-24
- Publication Date
- 2026-02-10
- Estimated Expiration
- 2035-02-24
AI Technical Summary
Existing aviation power distribution boxes are large and heavy, with a monotonous shape and mostly single-layer structure. They cannot meet the requirements of a large number of components and diverse functions. Their internal layout is also relatively loose, resulting in low space utilization.
It adopts a modular box structure, including a front panel, rear panel, left side panel, right side panel, cover plate and bottom plate, with reinforcing ribs and support columns. It is fastened with screws to form a multi-layer structure, and internal partitions and support columns are set to improve space utilization and mechanical strength.
It achieves a significant improvement in space utilization, a more compact internal layout, high mechanical strength, light weight, good assembly efficiency and maintainability, and meets the requirements of a large number of components and diverse functions.
Smart Images

Figure CN223898819U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to a novel power distribution box, belonging to the technical field of aircraft power distribution boxes. Background Technology
[0002] An aviation power distribution box is a structural component of a new type of aviation equipment power distribution device. It is used in high-power power supply devices on board to distribute electrical energy from ground power sources and battery packs to other power distribution devices and high-power loads, and to provide short-circuit protection and fault isolation for the internal components of the power distribution box.
[0003] Existing distribution boxes are large, heavy, and have a monotonous shape. Most are single-layer structures, which cannot meet the requirements of a large number of components and diverse functions. Their internal layout is also relatively loose, resulting in low space utilization. Utility Model Content
[0004] The present invention aims to solve the technical problems of existing power distribution boxes, which are large in size, heavy, have a simple shape, are mostly single-layer structures, cannot meet the working requirements of a large number of components and diverse functions, and have a relatively loose internal layout, resulting in low space utilization.
[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:
[0006] A novel aircraft power distribution box consists of a front panel, a rear panel, a left side panel, a right side panel, a cover a, a cover b, a cover c, a bottom plate, and a folding handle.
[0007] The front panel, rear panel, left side panel, right side panel, cover plate a, cover plate b, cover plate c, and bottom plate are all provided with reinforcing ribs;
[0008] The front panel is provided with electrical connector mounting holes, high-power terminal block assembly mounting holes, and electrical interface marking diagrams.
[0009] The rear panel is provided with mounting holes for high-power terminal block assembly and electrical interface markings.
[0010] Both the rear panel and the left side panel are provided with device mounting holes;
[0011] The front panel, rear panel and left side panel are all provided with wire harness clamp mounting holes;
[0012] Both the left and right side panels are provided with handle mounting holes;
[0013] Both the left and right side plates are provided with mounting lugs, which have positioning holes and mounting holes;
[0014] The right side plate is provided with mounting holes for an internal control module.
[0015] Both cover plate a and cover plate b are provided with circuit breaker mounting holes and corresponding marking diagrams; cover plate c is provided with product nameplate mounting holes and marking diagrams of electrical interface installation torque for terminal block assembly.
[0016] The cover plate b is provided with cover plate mounting holes; cover plate a is fastened to cover plate b, rear panel, left side panel and right side panel by screws; cover plate c is fastened to cover plate b, front panel, rear panel, left side panel and right side panel by screws;
[0017] The base plate, front panel, rear panel, left side panel, and right side panel are fastened with screws;
[0018] The folding handle is fastened to the left and right side plates by a combination of screws and nuts.
[0019] A partition is also provided inside the box-like structure composed of the front panel, rear panel, left side panel and right side panel, which has device mounting holes and wire harness clamp mounting holes; the partition is fastened to the front panel, rear panel and left side panel by screws;
[0020] Three support columns are respectively provided through the partition between the cover plate b and the bottom plate; the two ends of the three support columns are fastened to the cover plate b and the bottom plate by screws respectively.
[0021] The beneficial effects of adopting the above technical solution are:
[0022] 1. This utility model is a modular box structure that avoids waste caused by milling of materials and greatly reduces the difficulty of processing.
[0023] 2. The components on both sides of the partition in this utility model are neatly arranged and installed, which effectively increases the mounting surface of the components, greatly improves the space utilization, and shortens the length and width of the power distribution box, making the internal layout more compact.
[0024] 3. The support column provided in this utility model forms an effective support in the middle of the combined box, taking into account both mechanical strength and weight requirements, and has the advantages of light weight and high strength. Attached Figure Description
[0025] Figure 1 This is a schematic diagram of the structure of this utility model.
[0026] In the diagram: 1-Front panel, 2-Rear panel, 3-Left side panel, 4-Right side panel, 5-Cover a, 6-Cover b, 7-Cover c, 8-Bottom plate, 9-Partition, 10-Support column, 11-Folding handle. Detailed Implementation
[0027] The present invention will be further described in detail below with reference to the accompanying drawings:
[0028] like Figure 1As shown, a new type of aircraft power distribution box is composed of a front panel 1, a rear panel 2, a left side panel 3, a right side panel 4, a cover a5, a cover b6, a cover c7, a bottom plate 8, and a folding handle 11.
[0029] The front panel 1, rear panel 2, left side panel 3, right side panel 4, cover plate a5, cover plate b6, cover plate c7 and bottom plate 8 are all provided with reinforcing ribs to take into account the mechanical strength and weight requirements of the power distribution box.
[0030] The front panel 1 is provided with electrical connector mounting holes, high-power terminal block assembly mounting holes, and electrical interface marking diagrams;
[0031] The rear panel 2 is provided with high-power terminal block mounting holes and electrical interface marking diagrams;
[0032] Both the rear panel 2 and the left side panel 3 are provided with device mounting holes, increasing the mounting surface and improving space utilization;
[0033] The front panel 1, rear panel 2 and left side panel 3 are all provided with wire harness clamp mounting holes to facilitate the arrangement and fixing of wire harnesses inside the distribution box.
[0034] Both the left side plate 3 and the right side plate 4 are provided with handle mounting holes. The folding handle 11 is fastened to the left side plate 3 and the right side plate 4 by screws and nuts. When assembling, handling or installing the product, the folding handle 11 can be unfolded. When not in use, the folding handle 11 can be folded tightly against the left and right side plates, reducing the space occupied by the power distribution box on the machine and effectively improving the assemblability, operability, transportability and space utilization of the new power distribution box.
[0035] Both the left side plate 3 and the right side plate 4 are provided with mounting ears. The mounting ears are provided with positioning holes and mounting holes. Before installation, the positioning holes are used to pre-position the box, which facilitates the installation of the new power distribution box on the machine.
[0036] The right side plate 4 is provided with mounting holes for an internal control module;
[0037] Both cover plate a5 and cover plate b6 are provided with circuit breaker mounting holes and corresponding marking diagrams; cover plate c7 is provided with product nameplate mounting holes and marking diagrams of electrical interface installation torque for terminal block assembly.
[0038] The cover plate b6 is provided with cover plate mounting holes; cover plate a5 is fastened to cover plate b6, rear panel 2, left side panel 3 and right side panel 4 by screws; cover plate c7 is fastened to cover plate b6, front panel 1, rear panel 2, left side panel 3 and right side panel 4 by screws; during assembly, the circuit breaker is first installed on cover plate b6, then cover plate b6 with circuit breaker is installed on left side panel 3 and right side panel 4 by screws, and finally cover plate a5 or cover plate c7 is installed; during disassembly and maintenance, only cover plate a5 or cover plate c7 needs to be removed to inspect the internal components or parts of the upper layer of the distribution box, which greatly improves the assembly efficiency, safety and maintainability of the product, and facilitates the field maintenance of the distribution box;
[0039] The base plate 8, front panel 1, rear panel 2, left side panel 3 and right side panel 4 are fastened with screws. Only the base plate 8 needs to be removed to inspect the internal components or parts of the lower layer of the distribution box.
[0040] Inside the box-like structure composed of the front panel 1, rear panel 2, left side panel 3, and right side panel 4, there is also a partition 9, which has component mounting holes and wire harness clamp mounting holes. Components are neatly arranged and installed on both sides of the partition 9, which effectively increases the mounting surface of the components, greatly improves the space utilization, and also shortens the length and width of the power distribution box, making the internal layout compact.
[0041] Three support columns 10 are respectively provided through the partition 9 between the cover plate b6 and the bottom plate 8; the two ends of the three support columns 10 are fastened to the cover plate b6 and the bottom plate 8 by screws respectively. They take into account the mechanical strength and weight requirements, and have the advantages of light weight and high strength. They form an effective support in the middle of the combined box, so as to meet the working requirements of the large number of internal components and the diversified functions of the new power distribution box.
Claims
1. A novel aircraft power distribution box, comprising a front panel (1), a rear panel (2), a left side panel (3), a right side panel (4), a cover a (5), a cover b (6), a cover c (7), a bottom plate (8), and a folding handle (11); The front panel (1), rear panel (2), left side panel (3), right side panel (4), cover plate a (5), cover plate b (6), cover plate c (7) and bottom plate (8) are all provided with reinforcing ribs; The front panel (1) is provided with electrical connector mounting holes, high-power terminal block mounting holes and electrical interface marking diagrams; The rear panel (2) is provided with high-power terminal block mounting holes and electrical interface marking diagram; Both the rear panel (2) and the left side panel (3) are provided with device mounting holes; The front panel (1), rear panel (2) and left side panel (3) are all provided with wire harness clamp mounting holes; Both the left side plate (3) and the right side plate (4) are provided with handle mounting holes; Both the left side plate (3) and the right side plate (4) are provided with mounting lugs, which are provided with positioning holes and mounting holes; The right side plate (4) is provided with mounting holes for the internal control module; Both cover plate a (5) and cover plate b (6) are provided with circuit breaker mounting holes and corresponding marking diagrams; cover plate c (7) is provided with product nameplate mounting holes and marking diagrams of electrical interface mounting torque for terminal block assembly; The cover plate b (6) is provided with cover plate mounting holes; the cover plate a (5) is fastened to the cover plate b (6), the rear panel (2), the left side panel (3) and the right side panel (4) by screws; the cover plate c (7) is fastened to the cover plate b (6), the front panel (1), (2), the rear panel, the left side panel (3) and the right side panel (4) by screws; The base plate (8), front panel (1), rear panel (2), left side panel (3), and right side panel (4) are fastened with screws; The folding handle (11) is fastened to the left side plate (3) and the right side plate (4) by a combination of screws and nuts; Its features are: A partition (9) is provided inside the box structure composed of the front panel (1), rear panel (2), left side panel (3) and right side panel (4), which has device mounting holes and wire harness clamp mounting holes; the partition (9) is fastened to the front panel (1), rear panel (2) and left side panel (3) by screws; Three support columns (10) are respectively provided through the partition (9) between the cover plate b (6) and the bottom plate (8); the two ends of the three support columns (10) are fastened to the cover plate b (6) and the bottom plate (8) respectively by screws.