Plug-in type copper-aluminum wind power connector assembly and connector

Abstract

The invention discloses a plug-in type copper-aluminum wind power connector assembly and a connector, and relates to the technical field of electrical connection of wind power equipment, the plug-in type copper-aluminum wind power connector assembly comprises a male plug-in assembly and a female seat fixing assembly, and the female seat fixing assembly is arranged on one side of the outer wall of the male plug-in assembly; the male head plugging assembly comprises three wedge-shaped driving blocks, a miniature eccentric pendulum bob and a hard locking pin, the three wedge-shaped driving blocks adopt a double-inclined-surface design, the angle of an outer inclined surface in the double-inclined-surface design is 30 degrees, the angle of an inner inclined surface in the double-inclined-surface design is 15 degrees, and the three wedge-shaped driving blocks are used for double-wedge-shaped progressive locking; a memory alloy temperature sensing pad is embedded in one side of the outer wall of each of the three wedge-shaped driving blocks; through cooperative linkage of the male head plugging assembly and the female seat fixing assembly, the core defects that a traditional copper-aluminum wind power connector is unstable in contact, insufficient in anti-vibration protection, poor in environment adaptability and weak in installation compatibility are accurately overcome, and the requirements for low contact resistance, high vibration resistance, high environment adaptability and long service life in the wind power field are comprehensively met.

Description

TECHNICAL FIELD

[0001] The application relates to the technical field of electrical connection of wind power equipment, in particular to a plug-in copper-aluminum wind power connector assembly and a connector. BACKGROUND

[0002] The plug-in copper-aluminum wind power connector assembly is a core connecting component of a wind turbine generator system power transmission system, and bears the functions of current transmission and signal interaction between a nacelle power generation unit and a converter, and between the converter and a tower base power distribution system. The connection reliability directly determines the operation stability, power generation efficiency and safety protection level of the wind power equipment.

[0003] The core contradiction of the plug-in copper-aluminum wind power connector assembly is that the wind power field has rigid requirements for low contact resistance, high vibration resistance, strong environmental adaptability and long service life of the heterogeneous conductor connection, which is in fundamental conflict with the instability of traditional copper-aluminum connector contact, the deficiency of vibration protection and poor adaptability. The traditional scheme relies on a single contact structure, a separate locking unit and a rough sealing design, which is difficult to adapt to the needs of dense wind power equipment components, variable working conditions and flexible adaptation of different specifications of wind turbines, resulting in two defects in the prior art. First, the copper-aluminum contact stability and vibration resistance are insufficient, which can easily cause safety hazards. The traditional copper-aluminum direct crimping or simple plating structure is prone to electrochemical corrosion in the humid and salt spray environment of wind power, generating a high-resistance oxide layer to cause a sharp increase in contact resistance. The single buckle and threaded locking structure cannot withstand wideband vibration, resulting in locking fatigue and male and female end loosening. Vibration aggravates the fretting wear of the contact surface, forming a vicious cycle, and eventually leading to power failure, overheating and other faults. The lack of precise guide structure also causes misalignment of the connection, further aggravating the contact wear and uneven current distribution problems. Second, the harsh environment adaptation and installation compatibility are insufficient, resulting in protection failure and assembly difficulty. The traditional single O-ring sealing design is prone to aging and leakage under the high and low temperature, salt spray and ultraviolet working conditions of wind power, causing component corrosion or short circuit. The ordinary insulating shell has poor weather resistance and cannot guarantee long-term insulation protection. The simple bolt fixing structure has a small bonding area and is prone to displacement under vibration. It is difficult to adapt to the installation of different specifications of wind power equipment. Part of the electronic detection protection system fails under power failure conditions and needs to be reset manually, which can easily cause secondary faults in unattended wind power fields. In summary, the existing product cannot meet the core needs of high reliability, high vibration resistance, strong protection and long service life in the wind power field. Therefore, it is an urgent need to develop a copper-aluminum connector assembly that adapts to the complex working conditions of wind power.

[0004] Therefore, we propose a plug-in copper-aluminum wind power connector assembly and a connector to solve the problems mentioned above. SUMMARY

[0005] The application aims to provide a plug-in copper-aluminum wind power connector assembly and a connector, which can solve the core defects of unstable contact, insufficient anti-vibration protection, poor environmental adaptation and weak installation compatibility of traditional copper-aluminum wind power connectors, and meet the needs of low contact resistance, high anti-vibration, strong environmental adaptability and long service life in the field of wind power.

[0006] To achieve the above-mentioned purpose, the application provides the following technical scheme: a plug-in copper-aluminum wind power connector assembly, a male plug-in assembly and a female fixed assembly, the female fixed assembly is arranged on one side of the outer wall of the male plug-in assembly;

[0007] The male plug-in assembly comprises three wedge-shaped driving blocks, a micro eccentric pendulum and a hard locking pin, the three wedge-shaped driving blocks are designed with double inclined surfaces, the outer inclined surface has an angle of 30 degrees, and the inner inclined surface has an angle of 15 degrees, the three wedge-shaped driving blocks are used for double-wedge progressive locking, a memory alloy temperature sensing pad is embedded on one side of the outer wall of each of the three wedge-shaped driving blocks, and the three memory alloy temperature sensing pads are used for compensating pressure attenuation caused by thermal expansion when the temperature is high, the micro eccentric pendulum is used for accurately sensing wideband vibration and dragging the hard locking pin to convert the vibration signal into mechanical unlocking power, and the hard locking pin is used for ultimate anti-loosening in a vibration working condition, and a plurality of meshing tooth grooves are formed in one end of the outer wall of the hard locking pin.

[0008] The female fixed assembly comprises three double-wedge guide rail grooves and an anti-loosening gear ring, the outer groove of the three double-wedge guide rail grooves has a wedge angle of 30 degrees, and the inner groove has a wedge angle of 15 degrees, the outer groove of the three double-wedge guide rail grooves is used for quickly correcting plug-in deviation, and the inner groove is used for realizing quick radial holding force, a plurality of micro tooth grooves are annularly distributed on the inner ring of the anti-loosening gear ring, and the micro tooth grooves of the anti-loosening gear ring are used for accurately aligning with and meshing with the meshing tooth grooves of the hard locking pin.

[0009] Preferably, the male plug-in assembly further comprises a male insulating shell, an annular guide rail groove is formed in the outer surface of the male insulating shell, an operating ring is rotatably connected to the inner surface of the annular guide rail groove through an annular protrusion, one side of the outer wall of the operating ring is fixedly connected to the opposite side of the three wedge-shaped driving blocks, an annular boss and a mounting base are respectively connected to the inner surface of the operating ring, and a plurality of pin needles are inserted between the through holes of the annular boss and the mounting base.

[0010] Preferably, each of the pins is fitted with a metal compensating bellows on its outer surface, and each metal compensating bellows is used to compensate for the axial and radial displacement of the pin caused by temperature changes and fan vibration. The two ends of the outer wall of each metal compensating bellows are fixedly connected to the opposite side of the annular boss and the mounting base, respectively. Each of the pins is fitted with an insulating positioning bushing on its outer surface, and each insulating positioning bushing is used to prevent short circuits and buffer the radial vibration of the corresponding pin. The outer surface of each insulating positioning bushing is connected to the inner surface of a corresponding through hole of the mounting base. Each of the pins is fitted with a spring retaining ring on its outer surface, and a set of contact springs are arranged in annular array at one end of the outer wall of each spring retaining ring.

[0011] Preferably, the operating ring has an internal mounting groove, and brackets are bolted to both sides of the inner wall of the operating ring. A rotating shaft is connected between the opposite sides of the two brackets. The outer surface of the rotating shaft is rotatably connected to the inner surface of the miniature eccentric pendulum. A hanging lug is integrally formed on one side of the outer wall of the miniature eccentric pendulum. A torsion spring is hung in the hole of the hanging lug. One end of the outer wall of the torsion spring is hung in the hanging hole on one side of the outer wall of one of the brackets, and the torsion spring is sleeved on the outer surface of the rotating shaft.

[0012] Preferably, a hook is fixedly connected to one side of the outer wall of the miniature eccentric pendulum, a connector is bolted between the outer walls of the two brackets, miniature springs are symmetrically connected to one side of the outer wall of the connector, and a limit plate is connected between one end of the outer wall of the two miniature springs.

[0013] Preferably, a pin hole is provided through one side of the outer wall of the mounting groove, and a sealing ring is connected between the inner surfaces of the pin hole. The inner surface of the sealing ring and the outer surface of the hard locking pin are connected with a clearance fit. An energy storage compression spring is elastically connected to one end of the outer wall of the hard locking pin. A retaining ring is connected to one end of the outer wall of the energy storage compression spring. One side of the outer wall of the retaining ring is connected to one side of the inner wall of the mounting groove. A connecting rod is fixedly connected to one end of the outer wall of the hard locking pin.

[0014] Preferably, a horizontal plate is integrally formed on one end of the outer wall of the connecting rod, and a sliding groove is symmetrically opened on one side of the outer wall of the retaining ring. A sliding plate is slidably connected between the inner surface walls of each sliding groove, and a frame is bolted between the outer surface walls of two sliding plates. A metal elastic wire is connected between the outer surface walls of the frame.

[0015] Preferably, the female seat fixing assembly further includes a female seat insulating shell, one end of the outer wall of the female seat insulating shell is fixedly connected to a mounting flange, the other end of the outer wall of the female seat insulating shell is embedded with an O-ring, and the three double wedge-shaped guide rail grooves are formed on one side of the outer wall of the female seat insulating shell.

[0016] Preferably, the inner surface of the female socket insulating shell is connected to an insulating base, and one side of the outer wall of the insulating base has multiple insertion holes. The inner surfaces of the multiple insertion holes are connected to spring-loaded positioning insulating seats. A set of elastic springs are arranged in a ring between the inner surfaces of the multiple insertion holes. A circular hole is opened on one side of the outer wall of the female socket insulating shell, and the inner surface of the circular hole is connected to the outer surface of the anti-loosening toothed ring.

[0017] The present invention also provides a connector, including the aforementioned pluggable copper-aluminum wind power connector assembly.

[0018] Compared with the prior art, the beneficial effects of the present invention are:

[0019] In this invention, the male plug-in assembly and the female connector fixing assembly work together to precisely solve the core defects of traditional copper-aluminum wind power connectors, such as unstable contact, insufficient vibration protection, poor environmental adaptability, and weak installation compatibility. This comprehensively meets the wind power industry's requirements for low contact resistance, high vibration resistance, strong environmental adaptability, and long lifespan. The male plug-in assembly, through the integrated design of a miniature eccentric pendulum and a hard locking pin, achieves vibration-triggered automatic locking and anti-loosening, resisting wide-frequency vibrations and avoiding locking fatigue and loosening. Combined with a wedge-shaped drive block and a double wedge-shaped guide rail groove, it solves the problem of misalignment during connection, improves assembly efficiency and component lifespan, and incorporates a mechanically linked signal acquisition device. The design enables fault early warning without additional power supply, making it suitable for unattended wind farms. Secondly, the female mounting component uses double wedge-shaped guide rails for graded guidance and clamping, ensuring coaxiality of the male and female ends. The composite structure of the insulating positioning bushing and contact spring blocks copper-aluminum electrochemical corrosion, compensates for vibration and thermal expansion gaps, and ensures stable contact resistance. The multi-seal and integrated mounting flange design can adapt to harsh working conditions while improving installation compatibility and adapting to different specifications of wind power equipment. The two components work together to form a reliable closed loop of docking, locking, protection, and operation, significantly improving connection reliability and service life, and fully meeting the needs of mass application in the wind power field. Attached Figure Description

[0020] Figure 1 This is a perspective view of the main structure of a pluggable copper-aluminum wind power connector assembly according to the present invention.

[0021] Figure 2 This is a schematic diagram of the installation position structure of the male plug-in assembly and the female fixing assembly of a pluggable copper-aluminum wind power connector assembly according to the present invention.

[0022] Figure 3 This is a schematic diagram of the installation position of the male plug-in component in a pluggable copper-aluminum wind power connector assembly of the present invention.

[0023] Figure 4 This is a schematic diagram of the installation position structure of the annular boss and the mounting base in a pluggable copper-aluminum wind power connector assembly of the present invention.

[0024] Figure 5 This is a schematic diagram of the installation position structure of the insulating positioning bushing metal compensation bellows, spring retaining ring, and contact spring in a pluggable copper-aluminum wind power connector assembly of the present invention.

[0025] Figure 6 This is a schematic diagram of the installation position structure of the pins, insulating positioning bushings, and metal compensating bellows in a pluggable copper-aluminum wind power connector assembly of the present invention.

[0026] Figure 7 This is a schematic diagram of the installation position structure of the mounting slot and bracket in a pluggable copper-aluminum wind power connector assembly of the present invention.

[0027] Figure 8 This is a schematic diagram of the installation position structure of the bracket, rotating shaft, and miniature eccentric pendulum in a pluggable copper-aluminum wind power connector assembly of the present invention.

[0028] Figure 9 This is a schematic diagram of the installation position structure of the miniature eccentric pendulum, lug, and torsion spring in a pluggable copper-aluminum wind power connector assembly of the present invention.

[0029] Figure 10 This is a schematic diagram showing the installation positions of the connector, miniature spring, and limiting plate in a pluggable copper-aluminum wind power connector assembly according to the present invention.

[0030] Figure 11 This is a schematic diagram of the installation position of the female connector fixing component in a pluggable copper-aluminum wind power connector assembly according to the present invention.

[0031] Figure 12 This is a schematic diagram of the installation position structure of the double wedge-shaped guide groove, insulating base, and socket in a pluggable copper-aluminum wind power connector assembly of the present invention.

[0032] Figure 13 for Figure 12 Enlarged view of the structure at point A in the image.

[0033] In the diagram: 100, Male connector plug-in assembly; 101, Male connector insulating housing; 102, Annular guide rail groove; 103, Operating ring; 104, Wedge-shaped drive block; 105, Memory alloy temperature-sensitive pad; 106, Annular boss; 107, Mounting base; 108, Pin; 109, Insulating positioning bushing; 110, Metal compensating bellows; 111, Spring retaining ring; 112, Contact spring; 113, Mounting groove; 114, Bracket; 115, Rotating shaft; 116, Miniature eccentric pendulum; 117, Hanging lug; 118, Torsion spring; 119, Hook; 120, Connection Components; 121. Miniature spring; 122. Limiting plate; 123. Pin hole; 124. Hard locking pin; 125. Sealing ring; 126. Energy storage compression spring; 127. Retaining ring; 128. Connecting rod; 129. Horizontal plate; 130. Slide plate; 131. Frame; 132. Metal elastic wire; 200. Female seat fixing assembly; 201. Female seat insulating shell; 202. Mounting flange; 203. O-ring; 204. Double wedge guide rail groove; 205. Insulating base; 206. Insertion hole; 207. Spring piece positioning insulating seat; 208. Elastic spring piece; 209. Anti-loosening toothed ring. Detailed Implementation

[0034] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of the present invention, and not all embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0035] like Figures 1-2 As shown, this embodiment discloses a pluggable copper-aluminum wind power connector assembly, including a male pluggable assembly 100 and a female fixing assembly 200, with the female fixing assembly 200 installed on one side of the outer wall of the male pluggable assembly 100.

[0036] like Figure 3 as well as Figure 8 As shown, the male plug-in assembly 100 includes three wedge-shaped drive blocks 104, a miniature eccentric pendulum 116, and a hard locking pin 124. The three wedge-shaped drive blocks 104 adopt a double-sloped design, with the outer slope angle being 30 degrees and the inner slope angle being 15 degrees. The three wedge-shaped drive blocks 104 are used for double-wedge progressive locking. A memory alloy temperature-sensing pad 105 is embedded on one side of the outer wall of each of the three wedge-shaped drive blocks 104. The three memory alloy temperature-sensing pads 105 are used to compensate for the pressure attenuation caused by thermal expansion during phase change expansion at high temperatures. The miniature eccentric pendulum 116 is used to accurately sense wideband vibration and pull the hard locking pin 124 to convert the vibration signal into mechanical unlocking power. The hard locking pin 124 is used for ultimate anti-loosening under vibration conditions, and multiple meshing tooth grooves are opened on one end of the outer wall of the hard locking pin 124.

[0037] like Figures 12-13 As shown, the female seat fixing assembly 200 includes three double wedge-shaped guide grooves 204 and an anti-loosening tooth ring 209. The outer groove of the three double wedge-shaped guide grooves 204 has a wedge angle of 30 degrees and the inner groove has a wedge angle of 15 degrees. The outer groove of the three double wedge-shaped guide grooves 204 is used to quickly correct the insertion and removal deviation, and the inner groove is used to achieve rapid radial clamping force. The inner ring of the anti-loosening tooth ring 209 has multiple micro-grooves distributed in a ring. The micro-grooves of the anti-loosening tooth ring 209 are used to precisely align with the meshing groove of the hard locking pin 124 and achieve engagement.

[0038] This embodiment primarily addresses the core contradiction in pluggable copper-aluminum wind power connector assemblies: the fundamental conflict between the wind power industry's rigid requirements for low contact resistance, high vibration resistance, strong environmental adaptability, and long lifespan in heterogeneous conductor connections and the unstable contact, insufficient vibration protection, and poor adaptability of traditional copper-aluminum connectors. Traditional solutions rely on a single contact structure, discrete locking units, and a crude sealing design, making it difficult to adapt to the needs of densely packed wind power equipment components, variable operating conditions, and flexible compatibility with different wind turbine specifications. This results in two major defects in existing technology: First, insufficient copper-aluminum contact stability and vibration-resistant loosening capabilities easily lead to safety hazards. Second, traditional direct copper-aluminum pressing or simple plating structures are prone to electrochemical corrosion in the humid and salty environment of wind power, generating a high-resistance oxide layer that causes a surge in contact resistance. Third, single snap-fit ​​and threaded locking structures are unable to withstand wide-frequency vibrations, resulting in locking fatigue, loosening of the male and female ends, and increased fretting wear on the contact surface due to vibration. This creates a vicious cycle, ultimately leading to malfunctions such as power outages and overheating. The lack of a precise guiding structure can also cause misalignment, further exacerbating contact wear and uneven current distribution. Secondly, insufficient adaptability to harsh environments and inadequate installation compatibility result in protection failures and assembly difficulties. Traditional single O-ring 203 sealing designs are prone to aging and leakage under high and low temperatures, salt spray, and ultraviolet radiation conditions in wind power, leading to component corrosion or short circuits. Ordinary insulating shells have poor weather resistance and cannot guarantee long-term insulation protection. Simple bolt-fixing structures have small contact areas, making them prone to loosening and displacement under vibration, and are difficult to adapt to different specifications of wind turbine installation positions. Some electronic detection and protection systems fail under power outage conditions, requiring manual reset, which can easily cause secondary faults in unattended wind farms. In summary, existing products cannot meet the core requirements of high reliability, high vibration resistance, strong protection, and long lifespan in the wind power field. Developing copper-aluminum connector assemblies adapted to the complex operating conditions of wind power has become an urgent industry need.

[0039] This embodiment addresses the problems of existing technologies by using the coordinated operation of the male connector plug-in assembly 100 and the female connector fixing assembly 200 to precisely solve the core defects of traditional copper-aluminum wind power connectors, such as unstable contact, insufficient vibration protection, poor environmental adaptability, and weak installation compatibility. It comprehensively meets the wind power industry's requirements for low contact resistance, high vibration resistance, strong environmental adaptability, and long lifespan. The male connector plug-in assembly 100, through the integrated design of the miniature eccentric pendulum 116 and the hard locking pin 124, achieves vibration-triggered automatic locking and anti-loosening, resisting wide-frequency vibrations and avoiding locking fatigue and loosening. Combined with the wedge-shaped drive block 104 and the double wedge-shaped guide rail groove 204, it solves the problem of misalignment during docking, improving assembly efficiency and component lifespan. The mechanical linkage signal acquisition design enables fault early warning without additional power supply, making it suitable for unattended wind farms. Secondly, the female mounting component 200 achieves graded guidance and clamping through the double wedge-shaped guide rail groove 204, ensuring the coaxiality of the male and female ends. The composite structure of the insulating positioning bushing 109 and the contact spring 112 blocks copper-aluminum electrochemical corrosion, compensates for vibration and thermal expansion gaps, and ensures stable contact resistance. The integrated design of multiple seals and mounting flange 202 can adapt to harsh working conditions and improve installation compatibility, adapting to different specifications of wind power equipment. The two components work together to form a reliable closed loop of docking, locking, protection, and operation, significantly improving connection reliability and service life, and fully meeting the needs of mass application in the wind power field.

[0040] according to Figures 3-4 As shown, the male connector plug-in assembly 100 also includes a male connector insulating shell 101. An annular guide groove 102 is formed on the outer surface of the male connector insulating shell 101. An operating ring 103 is rotatably connected to the inner surface of the annular guide groove 102 through an annular protrusion. Some parts of the outer wall of the operating ring 103 are fixedly connected to the opposite side of the three wedge-shaped drive blocks 104. An annular boss 106 and a mounting base 107 are respectively connected to the inner surface of the operating ring 103. A plurality of pins 108 are inserted between the through holes of the annular boss 106 and the mounting base 107.

[0041] In this embodiment of the invention, the male connector insulating shell 101 is integrally injection molded from PA66+30% glass fiber reinforced engineering plastic. This material has excellent mechanical strength, weather resistance and electrical insulation properties, and can withstand the alternating high and low temperatures of -40℃ to 85℃ in outdoor wind power, ultraviolet radiation and sand and dust erosion, solving the defects of traditional ordinary plastic shells that are prone to aging and cracking (data reference "Engineering Plastics Performance Handbook"). The annular guide groove 102 on its outer surface and the operating ring 103 are rotated and engaged by annular protrusions. The operating ring 103 is machined from 6061 aluminum alloy, which is lightweight and rigid. When rotated, it can drive three wedge-shaped drive blocks 104 to move synchronously, realizing the progressive locking of the male connector and the female connector. Secondly, the annular protrusion 106 and the mounting base 107 are both made of aluminum alloy and are fixed to the operating ring 103 by bolts, providing a stable mounting reference for the pin 108 and ensuring the accurate positioning of the pin 108.

[0042] according to Figures 5-6 As shown, each pin 108 has a metal compensating bellows 110 fitted on its outer surface. Each metal compensating bellows 110 is used to compensate for the axial and radial displacement of the pin 108 caused by temperature changes and fan vibration. The two ends of the outer wall of each metal compensating bellows 110 are fixedly connected to the opposite side of the annular boss 106 and the mounting base 107, respectively. Each pin 108 has an insulating positioning bushing 109 fitted on its outer surface. Each insulating positioning bushing 109 is used to prevent short circuits and buffer the radial vibration of the corresponding pin 108. Figure 4 As shown, the outer surface of each insulating positioning bushing 109 is connected to the inner surface of a corresponding through hole of the mounting base 107. The outer surface of each pin 108 is fitted with a spring retaining ring 111, and a set of contact springs 112 are arranged in a ring at one end of the outer wall of each spring retaining ring 111.

[0043] In this embodiment of the invention, the pin 108 is made of copper alloy, which has excellent conductivity and strong oxidation resistance, fully meeting the conductivity requirements of the copper conductor at the cable end. The conductivity and oxidation resistance data of the material are derived from the technical specifications of commonly used materials for electrical connectors. Secondly, the metal compensating corrugated tube 110 sleeved on the outer surface of the pin 108 is made of 304 stainless steel, which has good elastic deformation capability and can effectively compensate for the axial and radial displacement of the pin 108 caused by temperature changes of -40℃ to 85℃ and wide-frequency vibration of 10-2000Hz in wind power equipment (refer to the "Technical Specification for Application of Stainless Steel Corrugated Tubes"), preventing the pin 108 from loosening its contact with the socket 206. Furthermore, the insulating positioning bushing 109 is made of... The material is polyetheretherketone (PEEK), which is resistant to high temperatures, wear, and has excellent insulation properties. It can prevent short circuits between the pins 108 and buffer the radial vibration of the pins 108 through its own elasticity (refer to the "Handbook of Polymer Insulation Materials"), further ensuring contact stability. The spring retaining ring 111 is made of stainless steel, and the contact springs 112 in the ring array are made of beryllium copper alloy, which has excellent fatigue resistance and elastic recovery ability. It generates a stable clamping force through pre-compression, and forms a double elastic contact with the elastic spring 208 of the female seat, ensuring long-term stability of contact resistance. At the same time, the combination of the pins 108 and the contact springs 112 can reduce the risk of electrochemical corrosion and solve the problem of easy oxidation of traditional direct copper-aluminum contact.

[0044] according to Figure 7 As shown, the operating ring 103 has an internal mounting groove 113, and brackets 114 are bolted to both sides of the inner wall of the operating ring 103. Figure 8 As shown, a rotating shaft 115 connects the opposite sides of the two supports 114. The outer surface of the rotating shaft 115 is rotatably connected to the inner surface of the miniature eccentric pendulum 116. Figure 8 As shown, a hanging lug 117 is integrally formed on one side of the outer wall of the miniature eccentric pendulum 116. A torsion spring 118 is hung in the hole of the hanging lug 117. One end of the outer wall of the torsion spring 118 is hung in the hanging hole on one side of the outer wall of one of the brackets 114, and the torsion spring 118 is sleeved on the outer surface of the rotating shaft 115.

[0045] In this embodiment of the invention, firstly, the bracket 114 is made of Q235 steel plate by stamping. The two brackets 114 are fixed in the mounting groove 113 of the operating ring 103 by bolts, providing stable support for the rotating shaft 115. The rotating shaft 115 is made of 45 steel with heat treatment, with moderate hardness and good wear resistance. The fit clearance with the miniature eccentric pendulum 116 is controlled at 0.02-0.05mm, which can ensure smooth rotation of the miniature eccentric pendulum 116 (refer to "Complete Analysis of Part Fit Tolerance Method"). Secondly, the miniature eccentric pendulum 116 is made of zinc alloy die casting. Its eccentric design can enhance the vibration sensing sensitivity and accurately capture the wide frequency vibration of wind power equipment from 10-2000Hz (refer to "Vibration Measurement and Evaluation Specification for Wind Turbine Generator Sets"). Its outer wall has an integrally formed hanging lug 117 that fits with the torsion spring 118. The torsion spring 118 is made of 304 stainless steel, with strong elastic recovery, and can quickly reset after the miniature eccentric pendulum 116 is triggered, avoiding false triggering.

[0046] according to Figures 9-10 As shown, a hook 119 is fixedly connected to one side of the outer wall of the miniature eccentric pendulum 116, and a connector 120 is bolted between the outer walls of the two brackets 114. Miniature springs 121 are symmetrically connected to one side of the outer wall of the connector 120, and a limit plate 122 is connected between one end of the outer wall of the two miniature springs 121.

[0047] In this embodiment of the invention, the hook 119 is made of 304 stainless steel and welded to one side of the miniature eccentric pendulum 116. It has high strength and is not easy to rust, and can reliably hook subsequent linkage components. The connector 120 is made of aluminum alloy and is fixed between the two brackets 114 by bolts. The miniature spring 121 symmetrically connected to one side is made of spring steel, which is elastic and stable. It cooperates with the limiting plate 122 to limit the initial position of the miniature eccentric pendulum 116, preventing the miniature eccentric pendulum 116 from swinging randomly under non-vibration conditions. At the same time, the buffering effect of the miniature spring 121 can reduce the impact force when the miniature eccentric pendulum 116 is triggered, thereby extending the service life of the components and ensuring the accuracy and reliability of vibration triggering.

[0048] according to Figure 7 As shown, a pin hole 123 penetrates one side of the outer wall of the mounting groove 113, according to Figure 10 As shown, a sealing ring 125 is connected between the inner surfaces of the pin hole 123. The inner surface of the sealing ring 125 and the outer surface of the hard locking pin 124 are connected with a clearance fit. One end of the outer wall of the hard locking pin 124 is elastically connected to an energy storage compression spring 126. One end of the outer wall of the energy storage compression spring 126 is connected to a retaining ring 127. One side of the outer wall of the retaining ring 127 is connected to one side of the inner wall of the mounting groove 113. One end of the outer wall of the hard locking pin 124 is fixedly connected to a connecting rod 128.

[0049] In this embodiment of the invention, the sealing ring 125 embedded in the inner wall of the pin hole 123 is made of fluororubber, which is resistant to high and low temperatures, anti-aging, and has excellent sealing performance. It can effectively prevent external sand and moisture from entering the mounting groove 113, protecting the hard locking pin 124 and internal linkage components, thereby improving overall protection. The hard locking pin 124 is made of alloy structural steel with heat treatment and hard chrome plating. It has high hardness and strong wear resistance. The meshing groove on one end of its outer wall is precisely matched with the tiny groove of the anti-loosening tooth ring 209 of the female seat to ensure tight meshing. At the same time, an annular copper alloy is embedded on the end face of the hard locking pin 124 away from the connecting rod 128. The device features a gold conductive contact that is connected to the signal transmission end of the male plug assembly 100 via a built-in flexible conductive sheet. The energy storage compression spring 126 is made of spring steel with a stable elastic modulus. After pre-compression, it can store sufficient elastic force, allowing it to quickly push the hard locking pin 124 out after unlocking. The retaining ring 127, made of steel, is fixed to the inner wall of the mounting groove 113, providing stable support for the energy storage compression spring 126. The connecting rod 128, made of 304 stainless steel, is welded and fixed to the hard locking pin 124, ensuring reliable transmission and enabling the linear movement of the hard locking pin 124 to be linked with the subsequent unlocking structure, ensuring smooth locking and unlocking actions.

[0050] according to Figure 10 As shown, a horizontal plate 129 is integrally formed on one end of the outer wall of the connecting rod 128, and a sliding groove is symmetrically opened on one side of the outer wall of the retaining ring 127. A sliding plate 130 is slidably connected between the inner surface walls of each sliding groove, and a frame 131 is bolted between the outer surface walls of the two sliding plates 130. A metal elastic wire 132 is connected between the outer surface walls of the frame 131.

[0051] In this embodiment of the invention, firstly, the horizontal plate 129 and the connecting rod 128 are integrally formed and both are made of 304 stainless steel. Their dimensions are adapted to the frame 131. Through cooperation with the sliding plate 130, the locking and unlocking of the hard locking pin 124 is achieved. The sliding plate 130 is made of polyoxymethylene, which has good self-lubricating properties, wear resistance, and a low coefficient of friction, allowing it to slide smoothly within the groove of the retaining ring 127, preventing jamming in the dusty environment of wind power plants. Secondly, the frame 131 is made of 304 stainless steel and is fixed to the two sliding plates 130 with bolts, resulting in a stable structure. Simultaneously, the metal elastic wire 132 is woven from 304 stainless steel wire, possessing high tensile strength and good elastic recovery, replacing traditional elastic ropes. It can resist fatigue fracture caused by high-frequency vibration and alternating high and low temperatures in wind power plants. In conjunction with the hook 119 of the miniature eccentric pendulum 116, the miniature eccentric pendulum 116 can pull the metal elastic wire 132 to drive the frame 131 and the slide plate 130 to slide, thereby unlocking the horizontal plate 129. Each slide plate 130 is provided with a copper alloy conductive contact on the side away from the frame 131. The inner wall of the double wedge-shaped guide rail groove 204 of the female base fixing component 200 is pre-set with a copper alloy signal feedback terminal at the corresponding position. When the slide plate 130 slides and unlocks with the metal elastic wire 132, the conductive contact makes physical contact with the signal feedback terminal at the same time, forming a passive conductive circuit. The mechanical action of "vibration exceeding the threshold + locking trigger" is converted into an electrical signal and transmitted to the wind power control system, realizing fault warning without additional power supply and adapting to unattended wind farms.

[0052] according to Figure 11 As shown, the female seat fixing assembly 200 also includes a female seat insulating shell 201. One end of the outer wall of the female seat insulating shell 201 is fixedly connected to a mounting flange 202, and the other end of the outer wall of the female seat insulating shell 201 is fitted with an O-ring 203. Three double wedge-shaped guide rail grooves 204 are opened on one side of the outer wall of the female seat insulating shell 201.

[0053] In this embodiment of the invention, firstly, the female seat insulating shell 201 is molded from modified epoxy resin, with added ultraviolet absorbers and anti-aging agents, exhibiting strong weather resistance and long-term use in harsh outdoor wind power environments. Its stable insulation performance avoids the defects of traditional insulating shells, such as easy aging and leakage. The mounting flange 202 is made of Q235 steel with hot-dip galvanized surface treatment, providing strong rust resistance. Its radial extension design increases the contact area with the wind turbine housing, and multiple bolts are used for fixing, dispersing vibration loads and avoiding the problem of loosening and displacement associated with traditional simple bolt fixing. Furthermore, the flange's universal design allows it to be adapted to the reserved installation positions of wind turbines of different specifications from 1.5MW to 15MW, thereby improving assembly compatibility (refer to the "Wind Turbine Installation Technical Specification"). Secondly, the O-ring 203 is made of fluororubber and is embedded at one end of the outer wall of the female seat insulating shell 201, effectively preventing moisture and dust from entering the mating surface and improving the overall sealing effect.

[0054] according toFigures 12-13 As shown, an insulating base 205 is connected to the inner surface of the female insulating shell 201. Multiple insertion holes 206 are passed through one side of the outer wall of the insulating base 205. A spring-loaded positioning insulating seat 207 is connected between the inner surfaces of the multiple insertion holes 206. A set of elastic springs 208 is arranged in a ring between the inner surfaces of the multiple insertion holes 206. A circular hole is opened on one side of the outer wall of the female insulating shell 201. The inner surface of the circular hole is connected to the outer surface of the anti-loosening toothed ring 209.

[0055] In this embodiment of the invention, firstly, the insulating base 205 is made of epoxy resin and is integrally formed with the insulating shell 201 of the female base. It has excellent insulation performance and high rigidity, providing a stable mounting foundation for the sockets 206 and internal components. The number of sockets 206 matches the number of male pins 108. The spring-loaded positioning insulating base 207 fixed to its inner wall is made of PEEK material, which is high-temperature resistant and wear-resistant, and can accurately fix the elastic springs 208, thereby preventing displacement of the elastic springs 208. Secondly, the elastic springs 208 are made of... Made of beryllium copper alloy, the ring array is distributed on the inner wall of the socket 206, possessing excellent elasticity and fatigue resistance. It cooperates with the male contact spring 112 to form a double elastic clamping. The clamping force generated by pre-compression compensates for vibration and thermal expansion gaps, ensuring tight contact. In addition, the anti-loosening gear ring 209 is made of 40Cr alloy structural steel with heat treatment. The micro-tooth grooves distributed in the inner ring are designed with the same module as the meshing grooves of the hard locking pin 124. Furthermore, a ring of copper alloy is embedded at the bottom of the tooth grooves of the anti-loosening gear ring 209. The conductive contact is connected to the signal feedback terminal of the female connector fixing assembly 200. When installed in the circular hole of the female connector insulating housing 201, it is guided by the 30-degree outer groove and the 15-degree inner groove of the male wedge-shaped drive block 104 and the female connector double wedge-shaped guide rail groove 204, achieving precise radial coaxial alignment with the male hard locking pin 124. When the energy storage compression spring 126 pushes the hard locking pin 124 out and engages with the anti-loosening tooth ring 209, the conductive contact on the end face of the hard locking pin 124 and the anti-loosening tooth ring 209... The conductive contacts at the bottom of the 9-tooth groove make precise contact, constructing a passive conductive circuit. This converts the mechanical action of vibration exceeding the threshold and locking triggering into an electrical signal, which is then transmitted to the wind power control system. This enables fault early warning without additional power supply, making it suitable for unattended wind farms. The tooth surface has high hardness and strong wear resistance, effectively limiting the relative displacement and rotation of the male and female ends, enhancing the anti-loosening effect under vibration conditions, and solving the defect of easy loosening in traditional locking structures. At the same time, its interference fit with the insulating shell 201 of the female seat ensures reliable installation and prevents loosening.

[0056] In use, the operator first aligns the male connector insertion assembly 100 with the mating port of the female connector fixing assembly 200, ensuring that the outer 30-degree bevel and inner 15-degree bevel of the three wedge-shaped drive blocks 104 on the male connector insulating shell 101 precisely correspond to the three double wedge-shaped guide grooves 204 on the female connector insulating shell 201. Then, the operator rotates the operating ring 103 within the annular guide groove 102 on the outer surface of the male connector insulating shell 101, causing the wedge-shaped drive blocks 104 to slide along the outer groove of the double wedge guide grooves 204. The insertion / removal deviation is quickly corrected through the 30-degree outer groove. The male connector insertion assembly 100 is then further advanced, causing the wedge-shaped drive blocks 104 to slide into the 15-degree inner groove, forming a radial clamping effect and achieving coaxial positioning of the male and female ends. Simultaneously, the operating ring 103... The pin 108, located between the inner annular boss 106 and the mounting base 107, passes through the insulating positioning bushing 109 and the metal compensating bellows 110, and is precisely inserted into the insertion hole 206 of the inner insulating base 205 of the female socket insulating shell 201. It contacts the elastic spring 208 of the spring-positioning insulating seat 207 within the insertion hole 206. Subsequently, the contact spring 112 on the outer spring fixing ring 111 of the pin 108 cooperates with the elastic spring 208 to form a double elastic clamping. At this time, after the male plug assembly 100 is in place, the O-ring 203 on the female socket insulating shell 201 fits tightly against the end face of the male socket insulating shell 101, cooperating with the sealing ring 125 in the inner pin hole 123 of the mounting groove 113 to achieve multiple... Resealing is performed. At this time, the energy storage compression spring 126 between the retaining ring 127 and the hard locking pin 124 is in a pre-compressed state. The hard locking pin 124 is limited in the pin hole 123 by the sliding plate 130 in the groove of the retaining ring 127 through the horizontal plate 129 at the end of the connecting rod 128. When the wind power equipment generates a wide frequency vibration of 10-2000Hz and the amplitude exceeds the threshold, the miniature eccentric pendulum 116 on the rotating shaft 115 between the brackets 114 in the mounting groove 113 of the operating ring 103 swings around the rotating shaft 115 to overcome the limiting force of the miniature spring 121 and the limiting plate 122 on the connecting piece 120. It pulls the metal elastic wire 132 on the frame 131 through the hook 119, causing the sliding plate 130 to slide along the groove to release the horizontal plate 127. The limit of 9, the energy storage compression spring 126 releases the elastic force to push the hard locking pin 124 out, the hard locking pin 124 is precisely aligned with the anti-loosening tooth ring 209 in the round hole of the female seat insulating shell 201, and when locked, it engages with the out popped hard locking pin 124 to achieve ultimate anti-loosening. At the same time, the conductive contact on the end face of the hard locking pin 124 contacts the conductive contact at the bottom of the tooth groove of the anti-loosening tooth ring 209, and a passive circuit is constructed to transmit the signal to the wind power control system; during operation, the shape memory alloy temperature sensing pad 105 on the wedge-shaped drive block 104 compensates for the thermal expansion pressure attenuation at high temperature due to phase change expansion, the metal compensation bellows 110 compensates for the axial and radial displacement of the pin 108, and the insulating positioning bushing 109 buffers radial vibration to ensure stable contact resistance;For maintenance, reverse rotation of the operating ring 103 causes the wedge-shaped drive block 104 to slide in the opposite direction along the double wedge-shaped guide groove 204. This pushes the slide plate 130 back to the limit plate 129, retracting the hard locking pin 124 into the pin hole 123. Pulling out the male connector assembly 100 completes the unlocking and separation. The miniature eccentric pendulum 116 is reset by the torsion spring 118 on the lug 117, ready for the next docking.

[0057] Although the present invention has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing embodiments or make equivalent substitutions for some of the technical features. Any modifications, equivalent substitutions, improvements, etc., made within the spirit and principles of the present invention should be included within the protection scope of the present invention.

Claims

1. A pluggable copper-aluminum wind power connector assembly, characterized in that: Male plug-in assembly (100) and female socket fixing assembly (200), wherein the female socket fixing assembly (200) is installed on one side of the outer wall of the male plug-in assembly (100); The male plug-in assembly (100) includes three wedge-shaped drive blocks (104), a miniature eccentric pendulum (116), and a hard locking pin (124). The three wedge-shaped drive blocks (104) adopt a double-sloped design, with the outer slope angle being 30 degrees and the inner slope angle being 15 degrees. The three wedge-shaped drive blocks (104) are used for double-wedge progressive locking. A memory alloy temperature-sensing pad (105) is embedded on one side of the outer wall of each of the three wedge-shaped drive blocks (104). The three memory alloy temperature-sensing pads (105) are used to compensate for the pressure attenuation caused by thermal expansion during phase change expansion at high temperatures. The miniature eccentric pendulum (116) is used to accurately sense broadband vibration and pull the hard locking pin (124) to convert the vibration signal into mechanical unlocking power. The hard locking pin (124) is used for ultimate anti-loosening under vibration conditions. Multiple meshing tooth grooves are opened on one end of the outer wall of the hard locking pin (124). The female seat fixing assembly (200) includes three double wedge guide rail grooves (204) and an anti-loosening tooth ring (209). The outer groove of the three double wedge guide rail grooves (204) has a wedge angle of 30 degrees and the inner groove has a wedge angle of 15 degrees. The outer groove of the three double wedge guide rail grooves (204) is used to quickly correct the insertion and removal deviation, and the inner groove is used to achieve rapid radial clamping force. The inner ring of the anti-loosening tooth ring (209) has multiple micro-tooth grooves distributed in a ring. The micro-tooth grooves of the anti-loosening tooth ring (209) are used to precisely align with the meshing tooth groove of the hard locking pin (124) and achieve meshing.

2. The pluggable copper-aluminum wind power connector assembly according to claim 1, characterized in that: The male plug assembly (100) also includes a male insulating shell (101). The outer surface of the male insulating shell (101) is provided with an annular guide groove (102). The inner surface of the annular guide groove (102) is rotatably connected to an operating ring (103) through an annular protrusion. Some of the outer wall of the operating ring (103) is fixedly connected to the opposite side of three wedge-shaped drive blocks (104). The inner surface of the operating ring (103) is respectively connected to an annular boss (106) and a mounting base (107). Multiple pins (108) are inserted between the through holes of the annular boss (106) and the mounting base (107).

3. The pluggable copper-aluminum wind power connector assembly according to claim 2, characterized in that: Each of the pins (108) is fitted with a metal compensation bellows (110) on its outer surface. Each metal compensation bellows (110) is used to compensate for the axial and radial displacement of the pin (108) caused by temperature changes and fan vibration. The two ends of the outer wall of each metal compensation bellows (110) are fixedly connected to the opposite side of the annular boss (106) and the mounting base (107), respectively. Each of the pins (108) is fitted with an insulating positioning bushing (109) on its outer surface. Each insulating positioning bushing (109) is used to prevent short circuits and buffer the radial vibration of a corresponding pin (108). The outer surface of each insulating positioning bushing (109) is connected to the inner surface of a corresponding through hole of the mounting base (107). Each of the pins (108) is fitted with a spring retaining ring (111). One end of the outer wall of each spring retaining ring (111) has a set of contact springs (112) arranged in an annular array.

4. The pluggable copper-aluminum wind power connector assembly according to claim 3, characterized in that: The operating ring (103) has an installation groove (113) inside. The inner walls of the operating ring (103) are bolted to the two sides of the inner wall of the operating ring (103). A rotating shaft (115) is connected between the opposite sides of the two supports (114). The outer surface of the rotating shaft (115) is rotatably connected to the inner surface of the miniature eccentric pendulum (116). The outer wall of the miniature eccentric pendulum (116) has an integrally formed hanging ear (117). A torsion spring (118) is hung in the hole of the hanging ear (117). One end of the outer wall of the torsion spring (118) is hung in the hanging hole on one side of the outer wall of one of the supports (114), and the torsion spring (118) is sleeved on the outer surface of the rotating shaft (115).

5. The pluggable copper-aluminum wind power connector assembly according to claim 4, characterized in that: A hook (119) is fixedly connected to one side of the outer wall of the miniature eccentric pendulum (116), and a connector (120) is bolted between the outer walls of the two brackets (114). A miniature spring (121) is symmetrically connected to one side of the outer wall of the connector (120), and a limit plate (122) is connected between one end of the outer wall of the two miniature springs (121).

6. The pluggable copper-aluminum wind power connector assembly according to claim 5, characterized in that: A pin hole (123) is passed through one side of the outer wall of the mounting groove (113). A sealing ring (125) is connected between the inner surfaces of the pin hole (123). The inner surface of the sealing ring (125) and the outer surface of the hard locking pin (124) are connected with a clearance fit. An energy storage compression spring (126) is elastically connected to one end of the outer wall of the hard locking pin (124). A retaining ring (127) is connected to one end of the outer wall of the energy storage compression spring (126). One side of the outer wall of the retaining ring (127) is connected to one side of the inner wall of the mounting groove (113). A connecting rod (128) is fixedly connected to one end of the outer wall of the hard locking pin (124).

7. The pluggable copper-aluminum wind power connector assembly according to claim 6, characterized in that: One end of the outer wall of the connecting rod (128) is integrally formed with a horizontal plate (129). The outer wall of the retaining ring (127) is symmetrically provided with sliding grooves. The inner surface walls of each sliding groove are slidably connected with a sliding plate (130). The outer surface walls of the two sliding plates (130) are bolted together with a frame (131). The outer surface walls of the frame (131) are connected with a metal elastic wire (132).

8. The pluggable copper-aluminum wind power connector assembly according to claim 1, characterized in that: The female seat fixing assembly (200) also includes a female seat insulating shell (201), one end of the outer wall of the female seat insulating shell (201) is fixedly connected to a mounting flange (202), and the other end of the outer wall of the female seat insulating shell (201) is fitted with an O-ring (203). The three double wedge guide rail grooves (204) are opened on one side of the outer wall of the female seat insulating shell (201).

9. The pluggable copper-aluminum wind power connector assembly according to claim 8, characterized in that: An insulating base (205) is connected to the inner surface of the female socket insulating shell (201). A plurality of insertion holes (206) are penetrated through one side of the outer wall of the insulating base (205). A spring-loaded positioning insulating seat (207) is connected between the inner surfaces of the plurality of insertion holes (206). A set of elastic springs (208) is arranged in a ring between the inner surfaces of the plurality of insertion holes (206). A circular hole is opened on one side of the outer wall of the female socket insulating shell (201). The inner surface of the circular hole is connected to the outer surface of the anti-loosening toothed ring (209).

10. A connector, characterized in that, Includes the pluggable copper-aluminum wind power connector assembly as described in any one of claims 1-9.

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