Low-voltage switchboard box and electric aircraft with same

Abstract

A low-voltage switchboard box and an electric aircraft with the same, the low-voltage switchboard box comprises a box body, a cover plate, a lock body, a breaker assembly, a busbar assembly and a circuit change-over switch, the cover plate covers the box body, one end of the cover plate is rotatably hinged to the box body, the lock body is arranged between the cover plate and the box body, and the circuit change-over switch is arranged in the box body. The cover plate is arranged on the box body and is used for controlling the separation and combination between the cover plate and the box body, a plurality of electric connector interfaces are arranged on the box body, each electric connector interface is used for being connected with a power supply, the circuit breaker assembly is arranged on the cover plate, and the circuit breaker assembly is arranged on the box body. The busbar assembly is connected between the electric connector interfaces and the circuit breaker assembly, and the circuit change-over switch is arranged on the busbar assembly and controls connection and disconnection between the circuit breaker assembly and the electric connector interfaces. According to the low-voltage distribution board box, parts can be replaced or maintained conveniently.

Description

Technical Field

[0001] This utility model relates to the field of aircraft parts technology, and in particular to a low-voltage distribution box and an electric aircraft having the same. Background Technology

[0002] In electric aircraft, power distribution plays a crucial role. All power distribution for the entire aircraft is managed through a low-voltage switchboard. By controlling the switching on and off of circuits, power from different sources is distributed to different power buses to power various system loads. Currently, low-voltage switchboards can only be designed and installed according to the specific needs of the aircraft. Therefore, replacing and repairing faulty components is quite complex. Utility Model Content

[0003] This utility model provides a low-voltage distribution box and an electric aircraft having the same, which allows for convenient replacement or repair of components.

[0004] This utility model provides a low-voltage distribution panel box, including a box body, a cover plate, a lock body, a circuit breaker assembly, a busbar assembly, and a circuit switching switch. The cover plate is disposed on the box body, and one end of the cover plate is rotatably hinged to the box body. The lock body is disposed between the cover plate and the box body and controls the separation and connection between the cover plate and the box body. Multiple electrical connector interfaces are provided on the box body, and each electrical connector interface is used to connect to a power source. The circuit breaker assembly is disposed on the cover plate. The busbar assembly is connected between the electrical connector interfaces and the circuit breaker assembly. The circuit switching switch is disposed on the busbar assembly and controls the connection and disconnection between the circuit breaker assembly and each of the electrical connector interfaces.

[0005] Furthermore, the cover plate includes a first cover plate and a second cover plate, both of which are hinged to the housing.

[0006] Furthermore, a fixing plate is provided inside the box, the first cover plate is hinged to the side wall of the box, and the second cover plate is hinged to the fixing plate.

[0007] Furthermore, the lock body includes a pivot, a blocking arm, and a baffle. The pivot is rotatably mounted on the cover plate. The blocking arm is located at the end of the pivot away from the cover plate. The baffle is located inside the housing and has a space between it and the bottom of the housing. The pivot drives the blocking arm to rotate, so as to move the blocking arm into or out of the space between the baffle and the bottom of the housing.

[0008] Furthermore, there are multiple circuit breaker assemblies, which are arranged at intervals on the cover plate. Each circuit breaker assembly includes a circuit breaker busbar and multiple circuit breaker bodies. The multiple circuit breaker bodies within the same circuit breaker assembly are arranged in a row on the cover plate. The circuit breaker busbar within the same circuit breaker assembly is connected to the multiple circuit breaker bodies within that circuit breaker assembly, and the circuit breaker busbar is connected to the busbar assembly.

[0009] Furthermore, a fixing nut is provided on the circuit breaker body, the circuit breaker body passes through a pre-set mounting hole on the cover plate from below, and the fixing nut locks the circuit breaker body from above the cover plate.

[0010] Furthermore, the bus assembly includes a first sub-bus and a second sub-bus, the circuit switching switch includes a first circuit switching switch, the first sub-bus is connected to the second sub-bus, the first circuit switching switch is located on the first sub-bus and upstream of the connection point between the first sub-bus and the second sub-bus, and the circuit breaker assembly is connected to the second sub-bus.

[0011] Furthermore, the bus assembly further includes a third sub-bus and a fourth sub-bus, and the circuit switching switch further includes a second circuit switching switch. The third sub-bus and the fourth sub-bus are both connected to the second sub-bus through the second circuit switching switch. The second circuit switching switch can optionally control the second sub-bus to be connected in parallel with the third sub-bus and / or the fourth sub-bus. There are multiple circuit breaker assemblies, with one part of the circuit breaker assemblies connected to the third sub-bus and another part of the circuit breaker assemblies connected to the fourth sub-bus.

[0012] Furthermore, a first fuse is provided between the connection point of the first sub-bus and the second sub-bus and the first circuit switching switch, and a second fuse is provided between the connection point of the first sub-bus and the second sub-bus and the second circuit switching switch.

[0013] This utility model also provides an electric aircraft, including the aforementioned low-voltage switch box.

[0014] In summary, by hinged to the box body and with the installation of the lock, the cover can be opened when maintenance is needed, facilitating the maintenance and replacement of electrical components inside the low-voltage distribution box.

[0015] Furthermore, by deploying the bus assembly and circuit switching switches, a variety of different power distribution modes can be provided for external loads.

[0016] Furthermore, by installing multiple circuit protection components on the busbar assembly, the safety of the power supply to the low-voltage distribution box can be ensured.

[0017] The above description is merely an overview of the technical solution of this utility model. In order to better understand the technical means of this utility model and to implement it in accordance with the contents of the specification, and to make the above and other objects, features and advantages of this utility model more apparent and understandable, preferred embodiments are described below in detail with reference to the accompanying drawings. Attached Figure Description

[0018] Figure 1 The diagram shown is an isometric view of the low-voltage distribution box provided in an embodiment of this utility model.

[0019] Figure 2 As shown Figure 1 A top view of the structure of a medium and low voltage distribution panel box.

[0020] Figure 3 As shown Figure 1 A schematic diagram of the axial structure of a medium- and low-voltage distribution panel box after removing the first and second cover plates.

[0021] Figure 4 As shown Figure 1 A schematic diagram of the axonal structure of the circuit breaker assembly.

[0022] Figure 5 As shown Figure 1 A schematic diagram of the axonal structure of a medium and low voltage distribution panel box after removing the cover plate and circuit breaker assembly.

[0023] Figure 6 As shown Figure 1 A top view of the medium and low voltage distribution panel box after removing the cover and circuit breaker assembly. Detailed Implementation

[0024] To further illustrate the technical means and effects adopted by this utility model in order to achieve the intended utility model purpose, the present utility model will be described in detail below with reference to the accompanying drawings and preferred embodiments.

[0025] This utility model provides a low-voltage distribution box and an electric aircraft having the same, which allows for convenient replacement or repair of components.

[0026] like Figures 1 to 3As shown, the low-voltage distribution panel box provided by this utility model includes a box body 10, a cover plate 20, a lock body 30, a circuit breaker assembly 40, a busbar assembly 50, and a circuit switching switch. The cover plate 20 covers the box body 10, and one end of the cover plate 20 is rotatably hinged to the box body 10. The lock body 30 is disposed between the cover plate 20 and the box body 10, and controls the separation and connection between the cover plate 20 and the box body 10. Multiple electrical connector interfaces 11 are provided on the box body 10, each of which is used to connect to a power source. The circuit breaker assembly 40 is disposed on the cover plate 20. The busbar assembly 50 connects the electrical connector interfaces 11 and the circuit breaker assembly 40. The circuit switching switch is disposed on the busbar assembly 50, and controls the connection and disconnection between the circuit breaker assembly 40 and each electrical connector interface 11.

[0027] When using this low-voltage distribution panel, the load to be connected can be inserted into the circuit breaker assembly 40. Since the circuit breaker assembly 40 is connected to the electrical connector through the busbar assembly 50, the connection of the load can be guaranteed. The connection between the load and different power sources can be completed through the circuit switching switch, thereby completing the power distribution. In this embodiment, the circuit breaker assembly 40 is mounted on the cover plate 20, which is rotatably hinged to the enclosure 10. In normal use, the cover plate 20 can be closed onto the enclosure 10 using the lock body 30. When replacement or maintenance is required, the cover plate 20 can be separated from the enclosure 10 using the lock body 30. This allows one end of the cover plate 20 to rotate around the hinge point, opening the low-voltage distribution panel and facilitating the maintenance or replacement of the components inside.

[0028] Furthermore, in this embodiment, the cover plate 20 may include a first cover plate 21 and a second cover plate 22. Both the first cover plate 21 and the second cover plate 22 are hinged to the housing 10. More specifically, the cover plate 20 is provided with hinges 23, and both the first cover plate 21 and the second cover plate 22 are connected to the housing 10 through corresponding hinges 23.

[0029] To further facilitate the maintenance of the low-voltage distribution box and the arrangement of internal components, in this embodiment, a fixing plate 12 is provided inside the box body 10. The first cover plate 21 can be directly connected to the side wall of the box body 10 through the corresponding hinge 23, while the second cover plate 22 can be connected to the fixing plate 12 through the corresponding hinge 23.

[0030] Understandably, in other embodiments, both the first cover plate 21 and the second cover plate 22 can be connected to the side wall of the housing 10 via corresponding hinges 23.

[0031] Please continue reading Figure 3In this embodiment, the lock body 30 includes a rotating shaft 31, a blocking arm 32, and a baffle 33. The rotating shaft 31 is rotatably mounted on the cover plate 20, and the blocking arm 32 is located at the end of the rotating shaft 31 away from the cover plate 20. The baffle 33 is located inside the housing 10, with a space between it and the bottom of the housing 10. When the rotating shaft 31 is rotated to the locked state, the blocking arm 32 rotates to a position between the baffle 33 and the bottom of the housing 10. When the rotating shaft 31 is rotated to the open state, the blocking arm 32 moves away from the baffle 33 and the bottom of the housing 10. With the above configuration, the locking and unlocking of the lock body 30 can be achieved by rotating the rotating shaft 31.

[0032] Furthermore, such as Figures 1 to 4 As shown, there can be multiple circuit breaker assemblies 40, which are spaced apart on the cover plate 20. Each circuit breaker assembly 40 includes a circuit breaker busbar 42 and multiple circuit breaker bodies 41. The multiple circuit breaker bodies 41 within the same circuit breaker assembly 40 are arranged in a row on the cover plate 20, and each circuit breaker body 41 within the circuit breaker assembly 40 is connected to the circuit breaker busbar 42 within that circuit breaker assembly 40. The circuit breaker busbar 42 is connected to the busbar assembly 50.

[0033] In this embodiment, multiple circuit breaker assemblies 40 are arranged in parallel on the cover plate 20 so that the circuit breaker bodies 41 are arranged in an array on the cover plate 20.

[0034] Furthermore, a fixing nut 411 is provided on the circuit breaker body 41. The circuit breaker body 41 passes through the pre-set assembly hole on the cover plate 20 from below. The fixing nut 411 is sleeved on the interface of the circuit breaker body 41 from above the cover plate 20 and locked to complete the fixing between the circuit breaker body 41 and the cover plate 20.

[0035] Please continue reading Figure 5 and Figure 6 In this embodiment, the circuit switching switch can preferably be a contactor.

[0036] Furthermore, the bus assembly 50 may include multiple sub-buses, each of which is connected to an electrical connector interface 11.

[0037] More specifically, in this embodiment, there can be four electrical connector interfaces 11. Correspondingly, the bus assembly 50 includes a first sub-bus 51, a second sub-bus 52, a third sub-bus 53, and a fourth sub-bus 54. The circuit switching switch may include a first circuit switching switch 61 and a second circuit switching switch 62.

[0038] The first sub-bus 51 is connected to the second sub-bus 52. A first circuit changeover switch 61 is located on the first sub-bus 51, upstream of the connection point between the first sub-bus 51 and the second sub-bus 52. Specifically, the first circuit changeover switch 61 is positioned between the connection point of the first sub-bus 51 and the second sub-bus 52, and the electrical connector interface 11 connected to the first sub-bus 51. The first circuit changeover switch 61 can control the opening and closing of the first sub-bus 51, allowing power from the first sub-bus 51 to flow into the second sub-bus 52 as needed. The circuit breaker assembly 40 is connected to the second sub-bus 52. In other words, the first circuit changeover switch 61 can be used to distribute power between the first sub-bus 51 and the second sub-bus 52.

[0039] Furthermore, both the third busbar 53 and the fourth busbar 54 are connected to the second busbar 52 via the second circuit switching switch 62. The second circuit switching switch 62 can optionally control the second busbar 52 to be connected in parallel with the third busbar 53 and / or the fourth busbar 54. One part of the circuit breaker assembly 40 is connected to the third busbar 53, while another part of the circuit breaker assembly 40 is connected to the fourth busbar 54.

[0040] That is, in this embodiment, by setting the first sub-bus 51, the second sub-bus 52, the third sub-bus 53, the fourth sub-bus 54, the first circuit switching switch 61, and the second circuit switching switch 62, multiple power distribution modes can be realized.

[0041] The power supply from the first sub-bus 51 to the second sub-bus 52 can be controlled via the first circuit switching switch 61. When the first circuit switching switch 61 is closed, the power supplies connected to the first sub-bus 51 and the second sub-bus 52 can be connected in parallel. When the first circuit switching switch 61 is open, the first sub-bus 51 can be disconnected from the second sub-bus 52.

[0042] When the second circuit switch 62 connects the second sub-bus 52 to the third sub-bus 53, the power supplies connected to the second sub-bus 52 and the third sub-bus 53 can be connected in parallel. In other words, the circuit breaker assembly 40 connected to the third sub-bus 53 can receive power from the second sub-bus 52 and the third sub-bus 53. Furthermore, the first sub-bus 51 can be controlled by the first circuit switch 61 (the opening and closing of the first circuit switch 61 can be performed as needed, and will not be described further below). When the second circuit switch 62 connects the second sub-bus 52 to the fourth sub-bus 54, the power supplies connected to the second sub-bus 52 and the fourth sub-bus 54 can be connected in parallel. The circuit breaker assembly 40 connected to the fourth sub-bus 54 can then receive power from the second sub-bus 52 and the fourth sub-bus 54. When the second circuit switching switch 62 connects the third sub-bus 53 and the fourth sub-bus 54 to the second sub-bus 52 at the same time, the second sub-bus 52 can be connected in parallel with the third sub-bus 53 and the fourth sub-bus 54 at the same time.

[0043] That is, the aforementioned layout of the first circuit switch 61, the second circuit switch 62, the second sub-bus 52, the third sub-bus 53, and the fourth sub-bus 54 allows for various power distributions to be achieved by controlling the first circuit switch 61 and the second circuit switch 62.

[0044] Further, please continue to refer to Figure 5 and Figure 6 In this embodiment, a first fuse 551 is also provided between the connection point of the first sub-bus 51 and the second sub-bus 52 and the first circuit switching switch 61 to protect the electrical components connected to the first sub-bus 51.

[0045] A second fuse 552 is also provided between the connection point of the first sub-bus 51 and the second sub-bus 52 and the second circuit switching switch 62 to further protect the electrical components connected to the first sub-bus 51 and the second sub-bus 52.

[0046] Between the second fuse 552 and the second circuit switching switch 62, a diode 553 is also provided to conduct current in a one-way manner, so that current can only flow into the second circuit switching switch 62 from the second busbar 52.

[0047] Both the first circuit switching switch 61 and the second circuit switching switch 62 are equipped with auxiliary contacts and coil discharge diodes for monitoring the contactor status.

[0048] Please continue to refer to Figure 1 and Figure 5The housing 10 is also provided with a fixing base 13 for fixation. In this embodiment, the housing 10 can be made of metal, and the positions on the housing 10 other than the fixing base 13 can be anodized. This can improve the oxidation resistance of the entire metal shell surface and also facilitate electrical grounding at the fixing base position.

[0049] Furthermore, an upward protrusion 24 is provided on the cover plate 20, and a downward recessed portion 14 is provided on the bottom plate of the housing 10, so as to leave enough space for the layout of electrical components inside the housing 10.

[0050] In summary, by hinged the cover plate 20 to the box body 10 and by arranging the lock body 30, the cover plate 20 can be opened when maintenance is required, which facilitates the maintenance and replacement of electrical components inside the low-voltage distribution box.

[0051] Furthermore, the bus assembly 50 and circuit switching switches can provide a variety of different power distribution modes for external loads.

[0052] Furthermore, by installing multiple circuit protection components on the bus assembly 50, the safety of the power supply to the low-voltage distribution box can be ensured.

[0053] This utility model also provides an electric aircraft, which includes the aforementioned low-voltage distribution box. For other technical features of the electric aircraft, please refer to the prior art, which will not be repeated here.

[0054] The above description is merely a preferred embodiment of the present utility model and is not intended to limit the present utility model in any way. Although the present utility model has been disclosed above with reference to a preferred embodiment, it is not intended to limit the present utility model. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present utility model. Any simple modifications, equivalent changes, and alterations made to the above embodiments based on the technical essence of the present utility model without departing from the scope of the present utility model shall still fall within the scope of the present utility model.

Claims

1. A low voltage distribution panel enclosure, characterized by: The utility model relates to a box, cover, lock body, circuit breaker assembly, busbar assembly and circuit switch, the cover is covered on the box, and one end of cover is rotatably hinged on the box, the lock body is arranged between the cover and the box, and the separation and combination between the cover and the box are controlled, and the electric connector interface is arranged on the box, the electric connector interface has a plurality, and each electric connector interface is used for being connected with a power supply, the circuit breaker assembly is arranged on the cover, the busbar assembly is connected between the electric connector interface and the circuit breaker assembly, and the circuit switch is arranged on the busbar assembly and controls the connection and disconnection between the circuit breaker assembly and each electric connector interface.

2. The low voltage distribution panel box of claim 1, wherein: The cover includes a first cover and a second cover, and the first cover and the second cover are hinged to the box.

3. The low-voltage distribution panel enclosure of claim 2, wherein: A fixing plate is arranged in the box, the first cover is hinged to the side wall of the box, and the second cover is hinged to the fixing plate.

4. The low voltage distribution panel box of claim 1, wherein: The lock body includes a rotating shaft, a blocking arm and a baffle, the rotating shaft is rotatably arranged on the cover, the blocking arm is arranged at one end of the rotating shaft away from the cover, the baffle is arranged in the box, and a space is left between the baffle and the bottom of the box, and the rotating shaft drives the blocking arm to rotate to move the blocking arm into or out of the space between the baffle and the bottom of the box.

5. The low voltage distribution panel box of claim 1, wherein: The circuit breaker assembly has a plurality of circuit breaker assemblies, and the plurality of circuit breaker assemblies are arranged on the cover at intervals, each circuit breaker assembly includes a circuit breaker busbar and a plurality of circuit breaker bodies, the plurality of circuit breaker bodies in the same circuit breaker assembly are arranged in a column on the cover, the circuit breaker busbar in the same circuit breaker assembly is connected with the plurality of circuit breaker bodies in the circuit breaker assembly, and the circuit breaker busbar is connected with the busbar assembly.

6. The low voltage distribution panel box of claim 5, wherein: A fixing nut is arranged on the circuit breaker body, the circuit breaker body passes through a predetermined assembly hole on the cover from below the cover, and the fixing nut locks the circuit breaker body from above the cover.

7. The low-voltage distribution panel enclosure of claim 1, wherein: The busbar assembly includes a first sub-busbar and a second sub-busbar, the circuit switch includes a first circuit switch, the first sub-busbar is connected with the second sub-busbar, the first circuit switch is located on the first sub-busbar and is located upstream of the connection point of the first sub-busbar and the second sub-busbar, and the circuit breaker assembly is connected with the second sub-busbar.

8. The low-voltage distribution panel enclosure of claim 7, wherein: The busbar assembly further comprises a third sub-busbar and a fourth sub-busbar, the circuit switch further comprises a second circuit switch, the third sub-busbar and the fourth sub-busbar are connected with the second sub-busbar through the second circuit switch, the second circuit switch selectively controls the second sub-busbar to be connected in parallel with the third sub-busbar and / or the fourth sub-busbar, the circuit breaker assembly has a plurality of circuit breakers, a part of the circuit breakers are connected with the third sub-busbar, and another part of the circuit breakers are connected with the fourth sub-busbar.

9. The low-voltage distribution panel enclosure of claim 8, wherein: A first fuse is arranged between the connection point of the first sub-busbar and the second sub-busbar and the first circuit switch, and a second fuse is arranged between the connection point of the first sub-busbar and the second sub-busbar and the second circuit switch.

10. An electrically powered aircraft characterised in that: A low-voltage distribution panel box comprising any one of claims 1 to 9.

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