High-voltage electrical connection, high-voltage electrical connector and aircraft

Abstract

The application discloses a high-voltage electric connection joint, a high-voltage electric connector and an aircraft, and relates to the technical field of high-voltage electric connectors, wherein the high-voltage electric connection joint comprises a mounting shell and an electric connection assembly; the mounting shell comprises a connecting shell, and the connecting shell is provided with an electric connection opening and a detachable opening in opposite positions; the electric connection assembly is integrally detachably installed in the connecting shell through the detachable opening, and the electric connection assembly comprises a protection structure and an electric connection terminal arranged in the protection structure. The technical scheme provided by the application can solve the problem that the high-voltage electric connection joint is inconvenient to disassemble and install.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of high-voltage electrical connectors, in particular to a high-voltage electrical connection joint, a high-voltage electrical connector and an aircraft. BACKGROUND

[0002] In the power distribution system of an electric vertical take-off and landing aircraft (eVTOL), a high-voltage electrical connector is an indispensable key component. The high-voltage electrical connector is a bridge for electrical energy transmission in the power distribution system. The high-voltage electrical connector generally has two high-voltage electrical connection joints. The power supply and the electrical equipment are connected through the two high-voltage electrical connection joints to ensure that the electrical energy can be stably and efficiently transmitted to each electrical equipment.

[0003] However, the high-voltage electrical connection joint of the high-voltage electrical connector in the prior art has low resistance to large current and voltage, is heavy, and has poor waterproof performance, which cannot meet the power demand of the power distribution system of the eVTOL. Moreover, the high-voltage electrical connection joint in the prior art is generally fixed as a whole and cannot be disassembled. Such a structure is not conducive to the later maintenance of the high-voltage electrical connection joint, resulting in high cost.

[0004] Therefore, how to overcome the shortcomings of the prior art and prepare a high-voltage electrical connection joint that is resistant to high voltage and large current, light in weight, has good waterproof performance, and is easy to maintain has become a technical problem that needs to be solved in the prior art. SUMMARY

[0005] The main purpose of the present application is to provide a high-voltage electrical connection joint, a high-voltage electrical connector and an aircraft. The problems to be solved are at least one of (1) solving the problem of inconvenient disassembly and installation of the connection joint, (2) reducing the weight of the high-voltage electrical connection joint, (3) improving the waterproof performance of the high-voltage electrical connection joint, and (4) providing a high-voltage electrical connection joint that is resistant to high voltage and large current.

[0006] To achieve the above-mentioned purpose, the high-voltage electrical connection joint according to the present application is used in a high-voltage electrical connector. The high-voltage electrical connection joint comprises a mounting shell and an electrical connection assembly. The mounting shell comprises a connecting shell having an electrical connection opening and a dismounting opening arranged oppositely. The electrical connection assembly is integrally detachably mounted in the connecting shell through the dismounting opening. The electrical connection assembly comprises a protection structure and an electrical connection terminal arranged in the protection structure.

[0007] In an embodiment, the protection structure comprises an insulating piece. One end of the insulating piece is arranged in an electrical connection slot. The electrical connection terminal is arranged in the insulating piece. An electrical connection end of the electrical connection terminal is arranged in the electrical connection slot.

[0008] In an embodiment, the insulating piece comprises a first insulating segment and a second insulating segment arranged separately. The electrical connection slot is arranged in the first insulating segment.

[0009] In an embodiment, the first insulation section is made of elastic insulation material; and / or

[0010] The second insulation section is made of rigid insulation material.

[0011] In an embodiment, the protective structure further comprises a waterproof member, which is connected to an end of the second insulation section away from the first insulation section.

[0012] In an embodiment, the waterproof member and the second insulation section are sealingly connected; and / or

[0013] The first insulation section and the second insulation section are sealingly connected; and / or

[0014] The waterproof member is made of elastic insulation material.

[0015] In an embodiment, one of the waterproof member and the second insulation section is provided with a first sealing step, and the other is provided with a second sealing step matched with the first sealing step; and / or

[0016] One of the first insulation section and the second insulation section is provided with a third sealing step, and the other is provided with a fourth sealing step matched with the third sealing step.

[0017] In an embodiment, the protective structure is integrally formed.

[0018] In an embodiment, the mounting shell further comprises a rear cover, which is detachably coupled to the mounting opening.

[0019] In an embodiment, the mounting shell further comprises a wire clamping member provided on the rear cover, which is used to clamp a wire.

[0020] In an embodiment, the wire clamping member and the rear cover are integrally formed.

[0021] In an embodiment, the wire clamping member is configured as a tail clamp, which is used to clamp a wire; and / or

[0022] The rear cover, the wire clamping member and the connecting shell each are provided with a fuse hole, which is used to pass a fuse.

[0023] In an embodiment, the rear cover is linear or bent.

[0024] In an embodiment, a protective distance is provided between an end surface of the power terminal and an opening surface of the power opening; and / or

[0025] The diameter of the power terminal ranges from 3mm to 10mm.

[0026] In an embodiment, the material of the mounting shell is an aluminum alloy or a composite material; and / or

[0027] The material of the power terminal is a copper-silver alloy or copper-plated silver or a copper-gold alloy or copper-plated gold; and / or

[0028] The high-voltage electrical connection connector further comprises an interlocking terminal arranged in the protective structure.

[0029] The application further provides a high-voltage electrical connector comprising a connection plug and a connection socket, wherein the connection plug comprises the high-voltage electrical connection connector described above, and the connection socket comprises the high-voltage electrical connection connector described above, and wherein the power terminal of the connection socket is provided with a power slot, and when the connection plug and the connection socket are connected, the power terminal of the connection plug is inserted into the power slot.

[0030] The application further provides an aircraft comprising the high-voltage electrical connector described above.

[0031] The technical solution of the application can detachably install the power assembly as a whole from the mounting and dismounting opening into the connection shell, that is, modularize the power assembly as a whole and then install it into the connection shell, so as to facilitate the mounting and dismounting of the power assembly and improve the mounting and dismounting efficiency of the high-voltage electrical connection connector. For example, when the power terminal needs to be repaired or replaced, the power assembly can be detached as a whole from the mounting and dismounting opening, and then the repair or replacement operation can be performed, thereby facilitating the processing and maintenance of the operator. BRIEF DESCRIPTION OF DRAWINGS

[0032] In order to more clearly illustrate the technical solutions in the embodiments of the application or the prior art, the following will briefly introduce the drawings needed to be used in the embodiments or the prior art description. Obviously, the drawings in the following description are only some embodiments of the application, and for those skilled in the art, other drawings can also be obtained from the structures shown in the drawings without creative labor.

[0033] Figure 1 Structure schematic diagram of a first embodiment of the high-voltage electrical connector provided by the application;

[0034] Figure 2 Structure schematic diagram of a second embodiment of the high-voltage electrical connector provided by the application;

[0035] Figure 3 Structure schematic diagram of a third embodiment of the high-voltage electrical connector provided by the application;

[0036] Figure 4 Structure schematic diagram of a fourth embodiment of the high-voltage electrical connector provided by the application;

[0037] Figure 5Structure diagram of first embodiment of the connecting plug of the high-voltage electric connector provided by the present application;

[0038] Figure 6 For Figure 5 Structure diagram of the connecting plug of the high-voltage electric connector;

[0039] Figure 7 Structure diagram of second embodiment of the connecting plug of the high-voltage electric connector provided by the present application;

[0040] Figure 8 For Figure 7 Structure diagram of the connecting plug of the high-voltage electric connector;

[0041] Figure 9 Structure diagram of third embodiment of the connecting plug of the high-voltage electric connector provided by the present application;

[0042] Figure 10 For Figure 9 Structure diagram of the connecting plug of the high-voltage electric connector;

[0043] Figure 11 For Figure 9 Structure diagram of the connecting plug of the high-voltage electric connector;

[0044] Figure 12 Structure diagram of fourth embodiment of the connecting plug of the high-voltage electric connector provided by the present application;

[0045] Figure 13 Structure diagram of first embodiment of the connecting socket of the high-voltage electric connector provided by the present application from the first perspective;

[0046] Figure 14 For Figure 13 Structure diagram of the connecting socket of the high-voltage electric connector;

[0047] Figure 15 For Figure 13 Structure diagram of the connecting socket of the high-voltage electric connector from the second perspective;

[0048] Figure 16 Structure diagram of second embodiment of the connecting socket of the high-voltage electric connector provided by the present application from the first perspective;

[0049] Figure 17 For Figure 16 Structure diagram of the connecting socket of the high-voltage electric connector;

[0050] Figure 18 For Figure 16 Structure diagram of the connecting socket of the high-voltage electric connector from the second perspective;

[0051] Figure 19 Structure diagram of a third embodiment of the connection socket of the high-voltage electrical connector provided by the present application;

[0052] Figure 20 Structure diagram of a third embodiment of the connection socket of the high-voltage electrical connector provided by the present application; Figure 19 Structure diagram of a third embodiment of the connection socket of the high-voltage electrical connector provided by the present application;

[0053] Figure 21 Structure diagram of a fourth embodiment of the connection socket of the high-voltage electrical connector provided by the present application;

[0054] Figure 22 Structure diagram of a fourth embodiment of the connection socket of the high-voltage electrical connector provided by the present application; Figure 21 Structure diagram of a fourth embodiment of the connection socket of the high-voltage electrical connector provided by the present application;

[0055] Figure 23 Structure diagram of a fourth embodiment of the connection socket of the high-voltage electrical connector provided by the present application; Figure 21 Structure diagram of a fourth embodiment of the connection socket of the high-voltage electrical connector provided by the present application;

[0056] Figure 24 Structure diagram of a first embodiment of the power connection terminal of the high-voltage electrical connector provided by the present application;

[0057] Figure 25 Structure diagram of a second embodiment of the power connection terminal of the high-voltage electrical connector provided by the present application;

[0058] Figure 26 Structure diagram of a third embodiment of the power connection terminal of the high-voltage electrical connector provided by the present application.

[0059] Explanation of reference numerals:

[0060] 1, high-voltage electrical connector; 10, connection socket; 20, connection plug; 100, mounting shell; 110, connection shell; 120, rear cover; 130, locking hole; 140, wire clamping member; 150, safety hole; 160, locking ring; 200, power connection assembly; 210, protection structure; 211, waterproof member; 212, insulating member; 212a, first insulating section; 212b, second insulating section; 212c, power connection slot; 212d, first sealing step; 212e, second sealing step; 212f, third sealing step; 212g, fourth sealing step; 220, power connection terminal; 300, locking pin; 400, power connection slot; 500, interlocking terminal.

[0061] The implementation, functional features and advantages of the present application will be further described with reference to the embodiments and the accompanying drawings. DETAILED DESCRIPTION

[0062] With reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments of the present application, all other embodiments obtained by those of ordinary skill in the art without creative efforts belong to the scope of the present application.

[0063] It should be noted that if the embodiments of the present application involve directional indications (such as up, down, left, right, front, back, etc.), the directional indications are only used to explain the relative positional relationship, movement condition, etc. between components in a certain posture, and if the certain posture changes, the directional indications will also change accordingly.

[0064] In addition, if the embodiments of the present application involve descriptions such as "first", "second", etc., the descriptions of "first", "second", etc. are only for description purposes and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features limited by "first", "second" can explicitly or implicitly include at least one of the features. In addition, "and / or" or "and / or" appearing throughout the text means that the three parallel solutions are included, for example, "A and / or B" includes A solution, or B solution, or A and B solution. In addition, the technical solutions of each embodiment can be combined with each other, but it must be based on the realization of ordinary skilled in the art, when the combination of technical solutions appears contradictory or unachievable, it should be considered that the combination of technical solutions does not exist, nor within the scope of protection claimed by the present application.

[0065] In the power distribution system of an electric vertical take-off and landing aircraft (eVTOL), a high-voltage connector is an indispensable key component. The high-voltage connector is a bridge for electric energy transmission in the power distribution system. The high-voltage connector generally has two high-voltage connection joints. The power supply and the electrical equipment are connected through the two high-voltage connection joints to ensure that the electric energy can be stably and efficiently transmitted to each electrical equipment.

[0066] However, the high-voltage connection joints of the high-voltage connector in the prior art have low resistance to large current and voltage, are heavy, have poor waterproof performance, and cannot meet the power demand of the power distribution system of the eVTOL. Moreover, the high-voltage connection joints in the prior art are generally fixed as a whole and cannot be disassembled. Such a structure is not conducive to the later maintenance of the high-voltage connection joints, resulting in high cost.

[0067] Therefore, how to overcome the deficiencies in the prior art, to prepare a high-voltage electrical connection joint of high-voltage electrical connection joint, light in quality, good waterproof performance, and convenient to maintain become the technical problems to be solved in the prior art.

[0068] Please refer to Figure 5 、 Figure 6 、 Figure 13 、 Figure 14 、 Figure 15 And Figure 18 In an embodiment of the present application, the high-voltage electrical connection joint is used for a high-voltage electrical connector 1, and the high-voltage electrical connection joint comprises a mounting shell 100 and an electrical connection assembly 200. The mounting shell 100 comprises a connecting shell 110 having oppositely arranged electrical connection openings and a mounting and dismounting opening. The electrical connection assembly 200 is integrally detachably mounted in the connecting shell 110 through the mounting and dismounting opening. The electrical connection assembly 200 comprises a protective structure 210 and an electrical connection terminal 220 arranged in the protective structure 210.

[0069] The technical scheme of the present application integrally detachably mounts the electrical connection assembly 200 in the connecting shell 110 from the mounting and dismounting opening, that is, modularly installs the electrical connection assembly 200 in the connecting shell 110. This can facilitate the mounting and dismounting of the electrical connection assembly 200 and improve the mounting and dismounting efficiency of the high-voltage electrical connection joint. For example, when the electrical connection terminal 220 needs to be repaired or replaced, the electrical connection assembly 200 can be integrally dismounted from the mounting and dismounting opening, and then the repair or replacement operation can be performed, thereby facilitating the processing and maintenance of the operator.

[0070] Referring to Figure 1 It should be noted that the high-voltage electrical connector 1 comprises two high-voltage electrical connection joints, and the two high-voltage electrical connection joints are connected so that the electrical connection terminals 220 in the two high-voltage electrical connection joints abut against each other. That is, the high-voltage electrical connector 1 comprises a connecting socket 10 and a connecting plug 20, and the connecting socket 10 and the connecting plug 20 are connected so that the two electrical connection terminals 220 in the connecting socket 10 and the connecting plug 20 are electrically connected, thereby realizing the flow of current from one conductor to another conductor. Moreover, the present scheme arranges the electrical connection terminal 220 in the protective structure 210. This not only protects the electrical connection terminal 220 and isolates the electrical connection terminal 220 and the mounting shell 100, thereby reducing the risk of electric shock and protecting the safety of people, but also can conduct a part of the heat of the electrical connection terminal 220.

[0071] The connecting shell 110 is configured as a circular connecting shell. This is because the circular connecting shell has the characteristics of stable structure, reliable connection, strong adaptability, easy processing and maintenance, and strong durability.

[0072] Further, the high-voltage electrical connection joint further comprises an interlocking terminal 500, which is arranged in the protective structure 210. The interlocking terminal 500, as the name implies, has an interlocking function, that is, one terminal can ensure that the other terminal associated therewith is in a specific state during connection, thereby preventing misoperation or electrical failure and improving the stability of the system. Moreover, the interlocking mechanism of the interlocking terminal 500 can ensure that the live part and the non-live part are effectively isolated during the connection process, thereby avoiding safety hazards such as short circuit and electric leakage of the electrical component. Secondly, the interlocking terminal 500 adopts a pin insertion type wiring method, which is easy to operate and does not require welding. At the same time, its adaptive ability and the function of replacing electrical components without power make the maintenance work more convenient and fast. Of course, the invention is not limited to this, and in other embodiments, the high-voltage electrical connection joint can also not be provided with the interlocking terminal 500.

[0073] In the present embodiment, the power connection terminal 220 is interference-fitted in the protective structure 210, and / or the protective structure 210 is interference-fitted with the connection shell 110. It can be understood that interference fitting achieves close connection through the interference amount between two parts, without the need for additional fasteners such as bolts and nuts, simplifying the structure. This can reduce the cost, reduce the size of the connector, and reduce the weight of the electrical connector, thereby facilitating the miniaturization and weight reduction of the aircraft. Secondly, the interference-fitted structure can maintain good stability and reliability under vibration or impact load, reducing the relative movement between parts and improving the overall performance of the high-voltage electrical connection joint. Due to the close connection caused by interference fitting, the high-voltage electrical connection joint can maintain good integrity when subjected to impact, reducing the risk of damage caused by impact. Interference fitting can provide effective sealing effect, thereby improving the sealing between the power connection assembly 200 and the connection shell 110, and between the power connection terminal 220 and the protective structure 210, thereby improving the waterproof performance of the high-voltage electrical connection joint. Furthermore, since the power connection terminal 220 is interference-fitted in the protective structure 210, and / or the protective structure 210 is interference-fitted with the connection shell 110, it can be inserted or removed without using special tools, thereby facilitating the installation and disassembly of the operator. Of course, the present scheme is not limited to this, and in other embodiments, the power connection terminal 220 is snap-fitted with the protective structure 210, and / or the protective structure 210 is snap-fitted with the connection shell 110, and is sealed by a sealing ring or the like.

[0074] Referring to Figure 7 , Figure 8 , and Figures 19 to 22Further, the protection structure 210 comprises an insulating piece 212, one end of the insulating piece 212 is provided with an insertion slot, the power connection terminal is arranged in the insulating piece, and the power connection end of the power connection terminal is arranged in the insertion slot. It can be understood that the insertion slot 212c can limit the lateral displacement of the insulating piece 212 or the power connection terminal 220 of another high-voltage electrical connection joint.

[0075] Moreover, arranging the power connection terminal 220 in the insulating piece 212 can ensure the insulation performance between the power connection terminal 220 and the connection shell 110, improve the safety, and at the same time, can conduct part of the heat of the power connection terminal 220.

[0076] Further, the insulating piece 212 comprises a first insulating segment 212a and a second insulating segment 212b arranged in a split manner, and the insertion slot 212c is arranged in the first insulating segment 212a. This is because the outer periphery of the power connection terminal 220 is provided with a ring protrusion. The insulating piece 212 is divided into the first insulating segment 212a and the second insulating segment 212b, and specifically during installation, the ring protrusion is located between the first insulating segment 212a and the second insulating segment 212b. This facilitates the installation and disassembly of the power connection terminal 220, thereby facilitating processing and maintenance.

[0077] Among them, the end of the first insulating segment 212a and / or the second insulating segment 212b can be provided with a relief gap, and the ring protrusion is arranged in the relief gap. This facilitates the installation and disassembly of the power connection terminal 220.

[0078] Further, the protection structure 210 further comprises a waterproof piece 211 connected to one end of the second insulating segment 212b away from the first insulating segment 212a. The main function of the waterproof piece 211 is to prevent water, moisture or other liquids from entering the inside of the power connection assembly 200, thereby protecting the internal power connection terminal 220 and elements from damage. In addition to waterproofing, the waterproof piece 211 can also prevent dust and other small particles from entering the inside of the connector to a certain extent, keep the internal environment clean, and reduce the failure caused by dust accumulation. For details, refer to Figures 16 to 18 Of course, the present application is not limited to this, and in some other embodiments, the waterproof piece 211 can also not be arranged, and only the insulating piece 212 is arranged.

[0079] For details, refer to Figure 8 , Figure 10 , Figure 11 and Figure 23Optionally, the waterproof member 211 and the second insulation section 212b are sealingly connected; and / or, the first insulation section 212a and the second insulation section 212b are sealingly connected; it can be understood that the waterproof member 211 enhances the overall sealing of the high-voltage electrical connection joint through the close sealing design between the second insulation section 212b and the first insulation section 212a and the second insulation section 212b, and reduces the performance degradation or failure caused by external environmental factors.

[0080] Further, one of the waterproof member 211 and the second insulation section 212b is provided with a first sealing step 212d, and the other is provided with a second sealing step 212e matched with the first sealing step 212d; and / or, one of the first insulation section 212a and the second insulation section 212b is provided with a third sealing step 212f, and the other is provided with a fourth sealing step 212g matched with the third sealing step 212f, so as to increase the abutting area of the waterproof member 211 and the second insulation section 212b, and / or the first insulation section 212a and the second insulation section 212b, thereby increasing the sealing performance. Of course, the present scheme is not limited thereto, and in other embodiments, a sealing ring can also be arranged between the waterproof member 211 and the second insulation section 212b, and / or a sealing ring can also be arranged between the first insulation section 212a and the second insulation section 212b, so as to increase the sealing performance of the connection between the two.

[0081] Further, the material of the first insulation section 212a is an elastic insulation material; and / or, the material of the waterproof member 211 is an elastic insulation material; and / or, the material of the second insulation section 212b is a hard insulation material, so as to not only improve the connection sealing performance between the waterproof member 211, the first insulation section 212a and the second insulation section 212b, but also improve the insulation performance of the protection structure 210, so that the protection structure 210 can prevent current leakage and breakdown at a higher voltage.

[0082] Specifically, in the embodiment, the waterproof piece 211 is made of an elastic insulating material. The elastic insulating material can not only elastically deform, but also has the properties of an insulating material. For example, when a wire enters the waterproof piece 211 or the waterproof piece 211 is connected to the second insulating section 212b, the waterproof piece 211 can elastically deform to achieve an interference fit. This not only makes installation more labor-saving, but also reduces the probability of a gap between the wire and the waterproof piece 211, and between the waterproof piece 211 and the second insulating section 212b, or even completely eliminates the gap between them, achieving a completely sealed connection and complete waterproofness, ensuring safe use. In addition, the elastic properties of the waterproof piece 211 can also improve the shock resistance and reduce the probability of loosening due to vibration. Moreover, the voltage resistance of the insulating material directly affects the voltage that the high-voltage electrical connection joint can withstand. The insulating material has a high dielectric strength, can prevent current leakage and breakdown at high voltages, and thus can improve the service life and safety of the high-voltage electrical connection joint.

[0083] In the embodiment, the first insulating section 212a is made of an elastic insulating material. The elastic insulating material can not only elastically deform, but also has the properties of an insulating material. For example, when the terminal or protective structure 210 of another high-voltage electrical connection joint abuts against the first insulating section 212a, or the first insulating section 212a is connected to the second insulating section 212b, the first insulating section 212a can elastically deform to achieve an interference fit. This not only makes installation more labor-saving, but also reduces the probability of a gap between the terminal or protective structure 210 of another high-voltage electrical connection joint and the first insulating section 212a, and between the first insulating section 212a and the second insulating section 212b, or even completely eliminates the gap between them, achieving a completely sealed connection and complete waterproofness, ensuring safe use. In addition, the elastic properties of the first insulating section 212a can also improve the shock resistance and reduce the probability of loosening due to vibration. Moreover, the voltage resistance of the insulating material directly affects the voltage that the high-voltage electrical connection joint can withstand. The insulating material has a high dielectric strength, can prevent current leakage and breakdown at high voltages, and thus can improve the service life and safety of the high-voltage electrical connection joint.

[0084] Further, the material of the second insulation section 212b is a rigid insulation material, which can strengthen the fixation of the power connection terminal 220 and meet more stringent vibration environments. It can be understood that the waterproof member 211 and the first insulation section 212a are provided with two ends of the second insulation section 212b. The waterproof member 211 and the first insulation section 212a are made of elastic insulation material, and the material of the second insulation section 212b is a rigid insulation material, which can make the second insulation section 212b better cooperate with the waterproof member 211 and the first insulation section 212a, and further improve the sealing between the waterproof member 211 and the first insulation section 212a and the second insulation section 212b.

[0085] It can be understood that the selection of the insulation material is particularly important for the high-voltage electrical connection joint. High-performance insulation materials such as polyimide, Peek, and fluorosilicone can be used. These materials not only have excellent insulation performance, but also can maintain stable performance under extreme conditions such as high temperature, high humidity, and chemical corrosion.

[0086] In the present embodiment, the material of the waterproof member 211 and / or the first insulation section 212a is fluorosilicone. This is because fluorosilicone not only has good insulation, high dielectric strength, and can prevent current leakage and breakdown under high voltage, but also meets the use voltage of 550V-1000V and the high-voltage resistance of not less than 3.5KW. In addition, it also has good stability at room temperature and high temperature, and can be used for a long time in the range of -50℃ to +260℃, and the short-term use temperature can be higher. Thus, the high-voltage electrical connection joint has excellent high and low temperature resistance. In addition, it also has good flame resistance, which can improve the flame resistance of the high-voltage electrical connection joint and meet the flight working conditions of various extreme weather of aircraft. Of course, the present scheme is not limited to this, and in other embodiments, the material of the waterproof member 211 and / or the first insulation section 212a can also be special rubber or fluorosilicone rubber.

[0087] In the embodiment, the material of the second insulation section 212b is polyimide, because firstly, polyimide can prevent current leakage and breakdown at high voltage, meet the use voltage of 550V-1000V, and the high voltage resistance is not less than 3.5KW; secondly, the glass transition temperature and melting point of polyimide are very high, so that the high temperature resistance of the second insulation section 212b can be improved. Of course, the scheme is not limited to this, in other embodiments, the material of the second insulation section 212b is Peek (polyether ether ketone), it can be understood that Peek not only has good insulation, can prevent current leakage and breakdown at high voltage, but also has very high glass transition temperature and melting point, can keep its mechanical properties and dimensional stability for a long time at high temperature, so that the high temperature resistance of the second insulation section 212b can be improved. Secondly, Peek has high strength, high toughness, high wear resistance and fatigue resistance, and can maintain excellent performance even under severe mechanical stress conditions, so the use of Peek material is beneficial to improve the durability of the second insulation section 212b.

[0088] It should be noted that in the embodiment, the material of the waterproof member 211 and / or the first insulation section 212a is fluorosilicone, and the material of the second insulation section 212b is polyimide, so that in the cooperation of the three, the sealing property of the protection structure 210 can be further improved, and the insulation and high temperature resistance of the protection structure 210 can be further improved, which can prevent current leakage and breakdown at high voltage, meet the use voltage of 550V-1000V, and the high voltage resistance is not less than 3.5KW, so that the aircraft can be applied to various extreme weather.

[0089] Secondly, the fluorosilicone or fluorosilicone rubber used in the waterproof member 211 and / or the first insulation section 212a of the high-voltage electrical connection joint of the scheme, and the polyimide used in the second insulation section 212b, compared with the scheme in the prior art that the waterproof body of the high-voltage electrical connection joint generally uses butyl rubber or silicone rubber, and the insulation body generally uses polyethylene, polyvinyl chloride or silicone rubber, the quality of the waterproof body and the insulation body of the scheme is lighter, so as to facilitate reducing the weight of the high-voltage electrical connection joint, and then realize the effect of reducing the weight of the aircraft.

[0090] Referring to Figure 6 and Figure 14 In the second embodiment, the protection structure 210 is integrally formed, it can be understood that the advantage of integrally forming process is that it can simplify the production process, improve the production efficiency and reduce the cost; secondly, the integrally formed product has no welding marks, the quality is better, and the service life is longer. The integrally formed product usually has higher strength and better durability, because they do not go through multiple processing and assembly in the manufacturing process, so as to reduce the potential weak points and failure points, and also improve the lateral waterproof performance of the electrical connection terminal 220.

[0091] It should be noted that when the protection structure 210 only includes the insulating piece 212, the integral forming of the protection structure 210 refers to the integral forming of the insulating piece 212, that is, the integral forming of the first insulating section 212a and the second insulating section 212b. When the protection structure 210 includes the insulating piece 212 and the waterproof piece 211, the integral forming of the protection structure 210 refers to the integral forming of the insulating piece 212 and the waterproof piece 211, that is, the integral forming of the waterproof piece 211, the first insulating section 212a and the second insulating section 212b.

[0092] Referring to Figures 7 to 11 In the embodiment, the mounting shell 100 further includes a rear cover 120 which detachably covers the dismounting opening. It can be understood that the detachable rear cover 120 can be used by the operator to observe the internal structure of the mounting shell 100 by dismounting the rear cover 120 when regular maintenance is needed, so that the internal structure is observable, and the operator's processing and maintenance are more convenient compared with the integral type of the shell of the high-voltage electrical connection joint in the prior art. Of course, the present solution is not limited thereto, and in other embodiments, the dismounting opening can be plugged by a locking ring, as described in Figure 16 .

[0093] Further, the rear cover 120 and the connecting shell 110 are threadedly connected. It can be understood that the threaded connection is achieved by rotating the threaded components to fasten, without the need for complex tools or equipment, so that the threaded connection is simple and convenient to install. Secondly, the installation process is simple and fast, which can improve the efficiency of the installation and dismounting of the rear cover 120. Moreover, compared with the flange connection which requires more fasteners and sealing elements, the threaded connection requires lower material cost and is relatively simple to manufacture, which helps to reduce the overall cost. Furthermore, the threaded connection has strong dismountability, and the threaded connection allows the dismounting and reassembly of the components, which is very useful in the maintenance and repair process. When the components need to be replaced or repaired, the threaded connection can quickly achieve this goal, reducing downtime. Of course, the present solution is not limited thereto, and in other embodiments, the rear cover 120 and the connecting shell 110 are snap-fitted.

[0094] Further, the rear cover 120 is sealingly fitted with the waterproof piece 211, thereby increasing the waterproofness of the high-voltage electrical connection joint.

[0095] Referring to Figure 12 Optionally, a positioning structure is further provided between the rear cover 120 and the connecting shell 110. The positioning structure can prevent the rear cover 120 and the connecting shell 110 from rotating relative to each other in the case of vibration, collision, etc., so that the connector can work normally in a relatively harsh vibration environment, thereby improving the stability of the connection between the rear cover 120 and the connecting shell 110.

[0096] Further, the high-voltage electric connection joint further comprises a locking pin 300, the rear cover 120 and the connection shell 110 are both provided with a locking hole 130, the locking pin 300 penetrates the locking hole 130 of the rear cover 120 and the locking hole 130 of the connection shell 110, and it can be understood that the positioning and matching mode of the locking pin 300 and the locking hole 130 is simple in structure and convenient to operate, which not only can increase the stability of the connection between the rear cover 120 and the connection shell 110, but also can improve the installation efficiency of the rear cover 120 and the connection shell 110.

[0097] In an embodiment, the locking pin 300 is in threaded cooperation with the hole wall of the locking hole 130, and it can be understood that in this way, the probability of the locking pin 300 being loosened from the locking hole 130 can be reduced, thereby further increasing the stability of the positioning of the rear cover 120 and the connection shell 110.

[0098] The locking pin 300 and the hole wall of the locking hole 130 are further provided with sealing reinforcing glue, and it can be understood that in this way, the probability of the relative rotation between the locking pin 300 and the locking hole 130 can be reduced, thereby further increasing the stability of the positioning of the rear cover 120 and the connection shell 110.

[0099] Optionally, the locking pin 300 is in threaded cooperation with the hole wall of the locking hole 130, and the locking pin 300 and the hole wall of the locking hole 130 are further provided with sealing reinforcing glue, which can further improve the connection stability of the rear cover 120 and the connection shell 110.

[0100] It should be noted that in the present embodiment, the locking pin 300 is configured as a screw, but the present solution is not limited thereto, and in other embodiments, the locking pin 300 can also be configured as a positioning stud or a common positioning column.

[0101] The insertion section of the locking pin 300 is provided in a pointed end, which can facilitate the insertion into the locking hole 130.

[0102] Further, the locking hole 130 is provided in a plurality, the plurality of locking holes 130 are arranged at intervals along the circumference of the connection shell 110, and one locking pin 300 is arranged corresponding to each locking hole 130, which can further improve the positioning stability of the rear cover 120 and the connection shell 110, thereby further improving the connection stability of the rear cover 120 and the connection shell 110.

[0103] In the present embodiment, the locking hole 130 is provided in three, and the three locking holes 130 are arranged at intervals along the circumference of the connection shell 110, and one locking pin 300 is arranged corresponding to each locking hole 130. In other embodiments, the locking hole 130 can also be provided in four or six.

[0104] Referring to Figure 8 , Figure 18 and Figure 20Optionally, the mounting shell 100 further comprises a wire clamping member 140 arranged on the rear cover 120, the wire clamping member 140 is used to clamp the wire, it can be understood that the wire clamping member 140 prevents the wire from shaking inside the high-voltage electrical connection connector to cause the wire insulation layer to retract; at the same time, the metal shielding layer of the shielding cable can be directly pressed onto the wire clamping member 140, so that the shielding layer of the wire and the high-voltage electrical connection connector can be conductive, thereby increasing the anti-electromagnetic interference capability.

[0105] The wire clamping member 140 and the rear cover 120 are integrally formed, it can be understood that the wire clamping member 140 and the rear cover 120 are integrally formed, which can save the connection structure between the wire clamping member 140 and the rear cover 120, thereby reducing the material and the space occupied by the connection structure, and further shortening the axial distance of the connection structure in the connection shell 110, thereby reducing the volume of the high-voltage electrical connection connector, and facilitating the arrangement of the high-voltage electrical connection connector in the aircraft, thereby reducing the volume of the aircraft, and the integrally formed wire clamping member 140 and the rear cover 120 can also increase the strength between the rear cover 120 and the wire clamping member 140, and reduce the probability of fracture under the action of pulling of the wire or other external forces. Of course, the present scheme is not limited to this, in other embodiments, the wire clamping member 140 and the rear cover 120 can also be welded or bonded.

[0106] In an embodiment, the wire clamping member 140 is configured as a tail clamping piece, the tail clamping piece is used to clamp the wire, such a wire clamping structure is simple, easy to process, and easy to clamp the wire, which is beneficial to improve the production efficiency of the high-voltage electrical connection connector.

[0107] The wire clamping member 140 comprises two oppositely arranged tail clamping pieces, and the two ends of the tail clamping pieces are provided with fastening bolts, which facilitates the installation and fastening of the wire. Of course, in other embodiments, the wire clamping member 140 comprises a tail clamping piece arranged in a bent manner, the tail clamping piece has a resilient end away from the bending position, and the resilient end is provided with a fastening bolt.

[0108] Referring to Figure 19 Further, the rear cover 120, the wire clamping member 140 and the connection shell 110 each are provided with a fuse hole 150, the fuse hole 150 is used to pass a fuse, it can be understood that the fuse hole 150 is used to pass the fuse after the high-voltage electrical connection connector is installed, thereby strengthening the installation of the high-voltage electrical connection connector and achieving the anti-loose effect of the high-voltage electrical connection connector.

[0109] Referring to Figures 1 to 4Further, the rear cover 120 is linear or bent, and it can be understood that, in an embodiment, the rear cover 120 is linear, and the high-voltage electrical connection connector is linear as a whole and extends in the axial direction of the connecting shell 110. In a second embodiment, the rear cover 120 is bent, and the rear cover 120 has a cover segment extending in the axial direction of the connecting shell 110 and a bent segment extending in a direction intersecting the axial direction of the connecting shell 110, the wire clamping member 140 is arranged at the end of the bent segment away from the cover segment, and the cover segment covers the dismounting opening. It can be understood that this can improve the flexibility of the high-voltage electrical connection connector, and different types of high-voltage electrical connectors 1 can be matched with each other to meet different use scenarios, and the high-voltage electrical connector 1 can be selected according to the installation space of the aircraft.

[0110] Referring to 11 and Figure 23 Optionally, a protective spacing is arranged between the end surface of the electrical connection terminal 220 and the opening surface of the electrical connection opening, which can reduce the risk of electric shock caused by accidental contact of the electrical connection terminal 220 in the high-voltage electrical connection connector by an operator, so that the high-voltage electrical connection connector has personnel electric shock protection, and an operator in a live state does not have the risk of electric shock.

[0111] Referring to Figures 24 to 26 Further, the diameter of the electrical connection terminal 220 ranges from 3 mm to 10 mm, and it can be understood that the diameter of the electrical connection terminal 220 is limited to a range of 3 mm to 10 mm, which can meet the power distribution requirements of the aircraft while achieving weight reduction, thereby facilitating the weight reduction of the aircraft.

[0112] It should be noted that the diameter of the electrical connection terminal 220 is denoted as D.

[0113] Specifically, when the electrical connection terminal 220 of the high-voltage electrical connection connector is the electrical connection terminal 220 of the connecting socket 10, the diameter of the electrical connection segment of the electrical connection terminal 220 ranges from 5 mm to 10 mm, which can meet the power distribution requirements of the aircraft while achieving weight reduction.

[0114] When the electrical connection terminal 220 of the high-voltage electrical connection connector is the electrical connection terminal 220 of the connecting plug 20, the diameter of the electrical connection segment of the electrical connection terminal 220 ranges from 3 mm to 8 mm, which can meet the power distribution requirements of the aircraft while achieving weight reduction.

[0115] Optionally, the material of the mounting shell 100 is made of aluminum alloy or composite material, and it can be understood that the material of the connecting shell 110 and / or the rear cover 120 is made of aluminum alloy or composite material. Compared with the scheme that the material of the shell of the conventional high-voltage electrical connection joint is made of copper or copper alloy, the weight of the mounting shell 100 of the high-voltage electrical connection joint can be greatly reduced. Aluminum alloy has low density, high strength, specific strength and specific stiffness. The strength of the composite material is slightly lower than that of the aluminum alloy shell, but the weight of the same shell is much lower than that of the aluminum alloy shell, and has certain advantages. The temperature resistance range of the two materials can meet-45℃~200℃. According to the environmental conditions of the installation and use of the high-voltage electrical connector 1, the connecting shell 110 made of the two materials can be comprehensively considered.

[0116] The composite material can be polyether ether ketone or polyimide, which is not limited here.

[0117] The material of the power connection terminal 220 is made of copper-silver alloy or copper-plated silver or copper-gold alloy or copper-plated gold. Compared with the conventional pure copper terminal or copper-plated tin terminal, the power connection terminal 220 made of copper-silver alloy or copper-plated silver or copper-gold alloy or copper-plated gold can ensure low impedance connection and corrosion resistance at the same time. The conductor current-carrying capacity of the power connection terminal 220 is significantly improved (electrical conductivity), and the current-carrying capacity of the power connection terminal 220 is increased, which can carry more than 150A of current.

[0118] Further, in the embodiment, the power connection terminal 220 and the wire are connected together in a crimping type. The crimping type makes the contact area between the wire and the power connection terminal 220 larger and the contact more compact after the power connection terminal 220 and the wire are connected together by crimping, so the resistance is lower and the current transmission is more stable. In the crimping process, the power connection terminal 220 is tightly connected together with the wire by the crimping tool to form a mechanical lock, which effectively prevents the wire from loosening or falling off. The crimping connection has a large contact area and reliable contact, which can ensure stable operation of the electrical connector for a long time and will not damage the wire. The crimping type connection mode cooperates with the protection structure 210 to completely fix the power connection terminal 220 and the conductor and completely isolate the power connection terminal 220 from the connecting shell 110, thereby ensuring the safety of the high-voltage electrical connection joint. Of course, the scheme is not limited to this, and in other embodiments, the power connection terminal 220 and the wire can also be connected together in a welding type or screwing type.

[0119] By limiting the diameter of the power connection terminal 220 to be between 3mm and 10mm, and combining the material of the mounting shell 100, the waterproof part 211, the first insulation section 212a, the second insulation section 212b, the power connection terminal 220, and the installation and cooperation mode between the structures, through experimental analysis and comparison with high-voltage electrical connection joints on the market, the weight of the high-voltage electrical connection joint of the scheme is effectively reduced, and the weight can be reduced by 30% to 50%.

[0120] Secondly, the material of the waterproof part 211 and the first insulation section 212a is fluorosilicone, and the material of the second insulation section 212b is polyimide. Since the polyimide is a hard insulation material, and the fluorosilicone is an elastic insulation material, the sealing property of the protection structure 210 can be further improved, and the insulation property and high-temperature resistance of the protection structure 210 can be further improved, so that the current leakage and breakdown can be prevented under a high voltage, the use voltage is 550V-1000V, and the high-voltage resistance is not less than 3.5KW, so that the aircraft can be applied to various extreme weather.

[0121] In conclusion, the high-voltage electric connection joint can overcome the shortcomings in the prior art, and a high-voltage electric connection joint with high high-voltage and large-current resistance, light weight, good waterproof performance, good shock resistance, and convenient maintenance can be prepared. That is, the high-voltage electric connection joint can meet the performance requirements to ensure the safety and reliability of the aircraft, and achieve the effects of weight reduction and convenient disassembly and maintenance.

[0122] It should be noted that the design method of the high-voltage electric connection joint is as follows: according to the power distribution requirement, the shape and size of the connection shell 110 of the high-voltage electric connection joint are determined; then, according to the maintenance requirement, the installation mode between the power connection assembly 200 of the high-voltage connection joint and the connection shell 110 is determined to be integrally detachable, so that the installation and disassembly of the user are facilitated, and the processing and maintenance of the operator are facilitated.

[0123] Then, according to the use scene, the form of the rear cover 120 connected with the connection shell 110 is determined, which can be linear or elbow-shaped; the form of the wire clamping part 140 connected with the rear cover 120 is configured, and the connection mode between the wire clamping part 140 and the rear cover 120 is determined to be integrally formed, so as to shorten the length of the connection shell 110, the rear cover 120 and the wire clamping part 140 in the axial direction of the connection shell 110. Then, the connection mode between the power connection terminal 220 of the power connection assembly 200 and the wire is determined to be crimping, so as to increase the stability of the connection between the power connection terminal 220 and the wire. Then, the form of the protection structure 210 of the power connection assembly 200 is determined to include the insulation part 212 and the waterproof part 211 connected with each other, so as to protect the power connection terminal 220, isolate the power connection terminal 220 and the mounting shell 100, reduce the risk of electric shock, protect the safety of people, and facilitate the installation of the power connection terminal 220.

[0124] Then, according to the weight requirement and the use environment requirement, the material of the connection shell 110 and the rear cover 120 is determined to be aluminum alloy or composite material, so as to meet the strength of the connection shell 110 and the rear cover 120 while reducing the weight of the connection shell 110 and the rear cover 120.

[0125] According to the weight requirement and the use environment requirement (for example, the use environment of high voltage and large current resistance), the material of the first insulation section 212a of the insulation piece 212 and the waterproof piece 211 is determined as an elastic insulation material, and the material of the second insulation section 212b of the insulation piece 212 is determined as a hard insulation material; wherein the waterproof piece 211 is connected with the second insulation section 212b; thereby meeting the high voltage and large current resistance of the power distribution system of the eVTOL, and facilitating the weight reduction of the high voltage electrical connection joint and the improvement of the waterproof performance of the protection structure 210.

[0126] Then, according to the weight requirement and the use environment requirement, the material of the electrical connection terminal 220 is determined as copper-silver alloy or copper-plated silver or copper-gold alloy or copper-plated gold; thereby ensuring low impedance connection and corrosion resistance performance; so that the conductor current carrying capacity of the electrical connection terminal 220 is significantly improved (electrical conductivity), and the current carrying capacity of the electrical connection terminal 220 is increased.

[0127] Referring to Figures 1 to 4 The application further provides a high voltage electrical connector 1, which comprises a connection plug 20 and a connection socket 10, the connection plug 20 comprises the high voltage electrical connection joint, and the connection socket 10 comprises the high voltage electrical connection joint, wherein the electrical connection terminal 220 of the connection socket 10 is provided with an electrical connection groove 400, and when the connection plug 20 is connected with the connection socket 10, the electrical connection terminal 220 of the connection plug 20 is inserted into the electrical connection groove 400. Since the high voltage electrical connection joint adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0128] The application further provides an aircraft, which comprises the high voltage electrical connector 1, and the specific structure of the high voltage electrical connector 1 is referred to the above-mentioned embodiments. Since the aircraft adopts all the technical solutions of the above-mentioned embodiments, it at least has all the beneficial effects brought by the technical solutions of the above-mentioned embodiments, which will not be repeated here.

[0129] The aircraft can be an electric vertical take-off and landing aircraft, or a traditional fixed-wing aircraft, a helicopter, etc.

[0130] The above-mentioned is only an exemplary embodiment of the application, and does not limit the patent scope of the application, and any equivalent structural transformation made by referring to the content of the specification and drawings of the application, or direct / indirect application in other related technical fields is included in the patent protection scope of the application.

Claims

1. A high voltage electrical connection joint for a high voltage electrical connector, characterized in that, The high-voltage electric connection joint comprises: a mounting shell, the mounting shell comprising a connection shell having oppositely arranged electric connection openings and a detachable opening; and an electric connection assembly integrally detachably mounted in the connection shell through the detachable opening, the electric connection assembly comprising a protective structure and an electric connection terminal arranged in the protective structure; the protective structure comprising an insulating piece, the insulating piece comprising a first insulating segment and a second insulating segment arranged in two parts, a ring protrusion of the electric connection terminal being located between the first insulating segment and the second insulating segment; the second insulating segment being made of a hard insulating material; and / or the first insulating segment being made of an elastic insulating material; the protective structure further comprising a waterproof piece connected to an end of the second insulating segment away from the first insulating segment; one of the waterproof piece and the second insulating segment being provided with a first sealing step, and the other being provided with a second sealing step matched with the first sealing step; and / or one of the first insulating segment and the second insulating segment being provided with a third sealing step, and the other being provided with a fourth sealing step matched with the third sealing step.

2. The high voltage electrical connection according to claim 1, wherein, an end of the insulating piece being provided with an electric connection slot, the electric connection terminal being arranged in the insulating piece, and an electric connection end of the electric connection terminal being arranged in the electric connection slot.

3. The high voltage electrical connection according to claim 2, wherein the electrically conductive material is a metal. the electric connection slot being arranged in the first insulating segment.

4. The high voltage electrical connection according to claim 1, wherein, the waterproof piece and the second insulating segment being sealingly connected; and / or the first insulating segment and the second insulating segment being sealingly connected; and / or the waterproof piece being made of an elastic insulating material.

5. The high voltage electrical connection according to claim 1, wherein, the mounting shell further comprising a rear cover, the rear cover being detachably arranged to cover the detachable opening.

6. The high voltage electrical connection according to claim 5, wherein the electrically conductive material is a metal. the mounting shell further comprising a wire clamping piece arranged on the rear cover, the wire clamping piece being used to clamp a wire; 7. The high voltage electrical connection according to claim 6, wherein the electrically conductive material is a metal. the wire clamping piece and the rear cover being integrally formed; and / or the wire clamping piece being configured as a tail clamping piece used to clamp a wire; and / or the rear cover being linear or bent; and / or the rear cover, the wire clamping piece and the connection shell each being provided with an insurance hole used for an insurance wire to pass through.

8. The high voltage electrical connection according to claim 1, wherein, an end surface of the electric connection terminal and an opening surface of the electric connection opening being provided with a protective distance; and / or a diameter of the electric connection terminal ranging from 3 mm to 10 mm; and / or the protective structure being integrally formed.

9. A high voltage electrical connection according to any one of claims 1 to 8, wherein, the mounting shell being made of an aluminum alloy or a composite material; and / or the electric connection terminal being made of a copper-silver alloy or copper-plated silver or a copper-gold alloy or copper-plated gold; and / or the high-voltage electric connection joint further comprising an interlocking terminal arranged in the protective structure.

10. A high voltage electrical connector characterized by, a connection plug and a connection socket, the connection plug comprising the high-voltage electric connection joint according to any one of claims 1 to 9, and the connection socket comprising the high-voltage electric connection joint according to any one of claims 1 to 9, wherein an electric connection terminal of the connection socket is provided with an electric connection slot, and when the connection plug and the connection socket are connected, the electric connection terminal of the connection plug is inserted into the electric connection slot.

11. An aircraft, characterized in that the high-voltage electric connector according to claim 10.

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