High-reliability multichannel redundancy voting DC power distribution device

Abstract

The utility model discloses a high-reliability multichannel redundancy voting direct-current power distribution device, which is applied to direct-current power distribution equipment of a power supply system of an unmanned aerial vehicle and comprises a plurality of groups of bus bars, acquisition resistors, an upper computer arranged in the power supply system of the unmanned aerial vehicle and a load arranged in the direct-current power distribution equipment, the plurality of groups of bus bars provide independent power distribution channels for the load, the acquisition resistor is used for acquiring voltage of the bus bars in real time and feeding back the voltage to the upper computer, and a multi-redundancy voting path combination form is formed among the plurality of groups of bus bars; according to the utility model, an independent power distribution channel can be provided for a load, various voting modes are formed by combining the circuit breaker and the diode module, reflux is prevented, pre-stage circuit elements are protected, transient voltage generated by operation of the circuit breaker or other factors is fully prevented from harming the pre-stage load, and the reliability of the system is improved. The safety and reliability of the direct-current power distribution equipment in the unmanned aerial vehicle power supply system are improved.

Description

TECHNICAL FIELD

[0001] The utility model relates to unmanned plane power supply system multi -channel direct current distribution technology field, concretely is a kind of high reliability multi -channel redundancy voting direct current distribution device. BACKGROUND

[0002] With the increasing integration of unmanned aerial vehicle system and the trend of task diversification, the reliability requirements of its power supply system equipment are becoming more and more stringent. Not only need to face the complex environment, but also the number of equipment and the level of load are increasing. The peak energy of the circuit breaker in the current direct current distribution device of the power supply system is easy to cause impact on the load of the next stage or the load of the previous stage, and then the equipment of the previous stage is easy to be damaged, thereby affecting the safety performance of the direct current distribution equipment. Therefore, a multi-channel redundancy voting direct current distribution device is proposed. SUMMARY

[0003] The utility model aims at providing a kind of high reliability multi -channel redundancy voting direct current distribution device to solve the problems raised in the above background technology.

[0004] To achieve the above object, the utility model provides the following technical scheme: a kind of high reliability multi -channel redundancy voting direct current distribution device is applied to unmanned plane power supply system direct current distribution equipment, including several groups of bus bar, acquisition resistance, upper computer built-in in unmanned plane power supply system and load built-in in direct current distribution equipment, several groups of bus bar provide independent power distribution channel to load, the acquisition resistance is connected with bus bar, and the acquisition resistance is used to collect the voltage of bus bar in real time and feedback to upper computer, and the combination form of multiple redundancy voting passageway is formed between several groups of bus bar, the voting passageway has voting unit, and the voting unit is composed of circuit breaker and diode, and the diode is used to prevent backflow and protect the circuit element of previous stage.

[0005] Further, the combination form of multiple redundancy voting passageway can be combined to form three groups of voting passageway form, and the three groups of voting passageway form includes first voting passageway form, second voting passageway form and third voting passageway form, which is used to improve the safety and reliability of direct current distribution equipment.

[0006] Further, the first voting passageway form adopts two groups of bus bar for double redundancy power supply, and the diode is located behind the circuit breaker.

[0007] Further, the second voting passageway form adopts two groups of bus bar for double redundancy power supply, and the diode is located in front of the circuit breaker.

[0008] Further, the third voting passageway form adopts circuit breaker and diode combination to supply power from single group of bus bar.

[0009] The utility model has the advantages that:

[0010] 1. The utility model discloses a plurality of channels load can be independently power distribution to the group bus bar and electrical component, provide independent power distribution channel for load, and adopt the combination of circuit breaker, isolation and prevent the diode module to form multiple voting mode, prevent the effect of backflow and protect the preceding stage circuit element, then prevent the transient voltage hazard preceding stage load produced by circuit breaker operation or other factors, improve the safety and reliability of direct current distribution equipment in unmanned plane power supply system, solve the unmanned plane power supply system multiple load direct current distribution device system integration problem.

[0011] 2. The utility model discloses the form of multiple voting provides controllable electric energy for part direct current load on plane, simultaneously has short circuit and overcurrent protection function, can carry out voltage collection and uploads the collection signal of flying parameter to each bus bar. BRIEF DESCRIPTION OF DRAWINGS

[0012] Figure 1 It is the logic principle block diagram of the utility model;

[0013] Figure 2 It is the logic block diagram of the utility model multiple voting form one;

[0014] Figure 3 It is the logic block diagram of the utility model multiple voting form two;

[0015] Figure 4 It is the logic block diagram of the utility model multiple voting form three.

[0016] In the drawing: 1 bus bar, 2 collection resistance, 3 circuit breaker, 4 diode, 5 load, 6 host computer. DETAILED DESCRIPTION

[0017] The technical scheme in the embodiments of the utility model will be described clearly and completely below in conjunction with the drawings in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by those skilled in the art without creative labor belong to the scope of protection of the utility model.

[0018] Please refer to Figure 1It is a kind of high reliability multi-channel redundancy voting DC power distribution device, applied to unmanned aerial vehicle power supply system DC power distribution equipment, comprising several groups of bus bars 1, collection resistance 2, upper computer 6 built-in in unmanned aerial vehicle power supply system and load 5 built-in in DC power distribution equipment, several groups of bus bars 1 provide independent power distribution channel to load 5, collection resistance 2 is connected with bus bar 1, this collection resistance 2 is used to collect the voltage of bus bar 1 in real time and feedback to upper computer 6, and the combination form of multiple redundancy voting paths is formed between several groups of bus bars 1, the voting path has a voting unit, and the voting unit is composed of circuit breaker 3 and diode 4, and the diode 4 is used to prevent backflow and protect the front-stage circuit element;The combination form of multiple redundancy voting paths can be combined to form three voting path forms, and the three voting path forms include a first voting path form, a second voting path form and a third voting path form, and the three voting path forms are used to improve the safety and reliability of the DC power distribution equipment. Embodiment

[0019] In combination Figure 1 With Figure 2 As shown in the figure, the high reliability multi-channel redundancy voting DC power distribution device, the first voting path form adopts two groups of bus bars 1 to carry out double redundancy power supply, and the diode 4 is located behind the circuit breaker 3, the diode 4 is located behind the circuit breaker 3, which can effectively prevent the influence of reverse peak voltage caused by residual energy or external factors in the circuit on the circuit after the circuit breaker 3 is cut off, and at the same time, two groups of bus bars 1 are used for double redundancy power supply to fully protect important load 5, which can effectively reduce the impact of harmful peak energy in transient circuit caused by the circuit breaker 3 on the subsequent load 5, and the inductive load 5 is important and the circuit breaker 3 exists frequently. Embodiment

[0020] In combination Figure 1 With Figure 3 As shown in the figure, the high reliability multi-channel redundancy voting DC power distribution device, the second voting path form adopts two groups of bus bars 1 to carry out double redundancy power supply, and the diode 4 is located in front of the circuit breaker 3, which can fully prevent the transient voltage hazard to the front-stage load 5 caused by the operation of the circuit breaker 3 or other factors, and effectively protect the front-stage equipment. Embodiment

[0021] In combination Figure 1 With Figure 4 As shown in the figure, the high reliability multi-channel redundancy voting DC power distribution device, the third voting path form adopts the combination of circuit breaker 3 and diode 4 to supply power from a single group of bus bars 1, which can provide controllable electric energy for multiple DC loads 5, and significantly improve the reliability and safety of the electrical system.

[0022] In summary: the high reliability multi-channel redundancy voting DC power distribution device, adopts circuit breaker 3, diode 4 module as the main power distribution element, according to the load 5 characteristics of the rear level, the power distribution channel attribute is formulated, each group of busbars 1 uses high-precision acquisition resistance 2 to collect the voltage of busbar 1 in real time, and feeds back to the on-board host computer 6, provides monitoring for the normal working state of the equipment, according to the electrical characteristics and importance of the rear load 5, a multi-redundancy voting combination working mode is formed among the multiple busbars 1, to fully provide the overall safety and reliability of the DC power distribution equipment.

[0023] The technical features of the above embodiments can be combined arbitrarily, in order to make the description simple, not all possible combinations of the technical features in the above embodiments are described, however, as long as the combination of the technical features does not exist contradictory, it should be considered as the scope of the description.

[0024] The above embodiments only express the preferred implementation of the present application, the description is more specific and detailed, but it cannot be understood as the limitation of the scope of the utility model patent; it should be pointed out that for ordinary skilled in the art, without departing from the concept of the present application, a number of modifications and improvements can be made, which belong to the protection scope of the present application; in the present application, unless otherwise explicitly specified and limited, the terms "mounting", "connection", "connection", "fixing" and other terms should be understood in a broad sense, for example, it can be fixedly connected, or it can be detachably connected, or it can be integrated; it can be mechanically connected; among them, the detachable mounting mode has many kinds, for example, it can be through the cooperation of plug-in and buckle, and for example, through the bolt connection mode, etc.

[0025] Although the embodiments of the present application have been shown and described, those skilled in the art can understand that various changes, modifications, replacements and variations can be made to these embodiments without departing from the principles and spirits of the present application, the scope of the present application is defined by the appended claims and their equivalents.

Claims

1. A high-reliability multi-channel redundancy voting DC power distribution device applied to a UAV power supply system DC power distribution equipment, characterized in that: The application relates to a DC power distribution device, which comprises a plurality of groups of bus bars, collection resistors, an upper computer built in a power supply system of a UAV, and loads built in the DC power distribution device, the plurality of groups of bus bars provide independent power distribution channels for the loads, the collection resistors are connected with the bus bars, the collection resistors are used for collecting bus bar voltages in real time and feeding back to the upper computer, a plurality of groups of bus bars form a redundancy voting path combination mode, the voting path has a voting unit, the voting unit is composed of a circuit breaker and a diode, and the diode is used for preventing backflow and protecting front-stage circuit elements. ​ 2. The high-reliability multi-channel redundant voting DC power distribution apparatus of claim 1, wherein: The redundancy voting path combination mode can be combined to form three groups of voting path modes, the three groups of voting path modes comprise a first voting path mode, a second voting path mode and a third voting path mode, and the three groups of voting path modes are used for improving the safety and reliability of the DC power distribution device.

3. The high-reliability multi-channel redundant voting DC power distribution apparatus of claim 2, wherein: The first voting path mode adopts two groups of bus bars for double-redundancy power supply, and the diode is located behind the circuit breaker.

4. The high-reliability multi-channel redundant voting DC power distribution apparatus as claimed in claim 2, characterized in that: The second voting path mode adopts two groups of bus bars for double-redundancy power supply, and the diode is located in front of the circuit breaker.

5. The high-reliability multi-channel redundant voting DC power distribution apparatus of claim 2, wherein: The third voting path mode adopts a combination of the circuit breaker and the diode for power supply from a single group of bus bars.

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