技术领域technical field
本发明属于航天领域，涉及一种应用于空间太阳能电站连接太阳发电阵和发射天线阵的大功率导电旋转关节。The invention belongs to the aerospace field, and relates to a high-power conductive rotary joint used in a space solar power station to connect a solar power generation array and a transmitting antenna array.
背景技术Background technique
为了实现对空间太阳能的综合利用和开发，以美国和日本为主的发达国家已经投入了大量人员开展广泛的空间太阳能电站技术研究。空间太阳能电站SPSS(SPS-Solar Power Satellite，SSPS-Space Solar Power System，SBSP-Space Based Solar Power)是在空间将太阳能转化为电能，再通过其它方式传输到地面供地面使用的电力系统。空间太阳能电站的建立旨在利用空间的太阳能为地面提供GW级电力，其中空间太阳能电站的建造、运行、管理都是非常宏大的工程。In order to realize the comprehensive utilization and development of space solar energy, developed countries dominated by the United States and Japan have invested a large number of personnel to carry out extensive technical research on space solar power plants. Space Solar Power Station SPSS (SPS-Solar Power Satellite, SSPS-Space Solar Power System, SBSP-Space Based Solar Power) is a power system that converts solar energy into electrical energy in space, and then transmits it to the ground for use on the ground by other means. The establishment of space solar power plants aims to use solar energy in space to provide GW-level power for the ground, and the construction, operation, and management of space solar power plants are very ambitious projects.
为了保证空间太阳能电站的高效率工作，太阳能电池阵必须连续旋转跟踪太阳的位置，而发射天线阵对地球接收站定向。在一个轨道周期内，太阳电池阵与发射天线之间的相对位置变化达到360度，所以必须采用可以连续旋转的大功率导电旋转机构实现供电设备(太阳发电阵)与用电设备(发射天线阵)的连接。目前国内外航天领域，已经得到实际应用的大功率导电旋转关节主要分为滑环式和滚环式两种，均为接触式结构。虽然这些接触式旋转导电关节已经被广泛应用在卫星和空间站的各种旋转接口上，但由于滑环的摩擦力矩较大、滑动接触表面磨损严重、接触电阻较大、局部过热，已经引起了短路或局部二次放电的问题，这些局限性将难以满足空间太阳能电站更大传输功率、更长运行寿命和更高可靠性的需求。In order to ensure the high-efficiency work of space solar power plants, the solar cell array must continuously rotate to track the position of the sun, while the transmitting antenna array is oriented to the receiving station on the earth. In one orbit period, the relative position between the solar cell array and the transmitting antenna changes up to 360 degrees, so a high-power conductive rotating mechanism that can rotate continuously must be used to realize the power supply equipment (solar power array) and the electrical equipment (transmitting antenna array )Connection. At present, in the field of aerospace at home and abroad, the high-power conductive rotary joints that have been practically used are mainly divided into two types: slip ring type and rolling ring type, both of which are contact structures. Although these contact rotating conductive joints have been widely used in various rotating interfaces of satellites and space stations, due to the large friction torque of the slip ring, serious wear of the sliding contact surface, large contact resistance, and local overheating, short circuits have been caused. Or the problem of partial secondary discharge, these limitations will make it difficult to meet the needs of greater transmission power, longer operating life and higher reliability of space solar power plants.
公开号为103076812，名称为“一种新型太阳帆板驱动机构”的中国专利公布了一种太阳帆板驱动机构，该驱动机构为了克服导电滑环接触电阻热损和摩擦放电的问题，取消了导电滑环，导致导电旋转关节不具有360度的旋转功能，依靠驱动器控制太阳帆板多次正、反转来避免其做360度运动。作为大型航天结构，驱动太阳发电阵旋转需要耗费很大的能量，如果不能进行360度旋转，则需要将很大部分的能量用于太阳发电阵的往复旋转，其反向运动的巨大惯性也会给驱动结构带来巨大损伤和控制难度，因此很难用于空间太阳能电站或其他大型航天器。The publication number is 103076812, and the Chinese patent titled "A New Type of Solar Panel Drive Mechanism" discloses a solar panel drive mechanism. In order to overcome the problems of conductive slip ring contact resistance heat loss and friction discharge, the drive mechanism cancels the Conductive slip rings cause the conductive rotary joint not to have a 360-degree rotation function, and rely on the drive to control the solar panel to rotate forward and backward many times to avoid its 360-degree movement. As a large aerospace structure, it takes a lot of energy to drive the solar array to rotate. If it cannot rotate 360 degrees, a large part of the energy needs to be used for the reciprocating rotation of the solar array, and the huge inertia of its reverse motion will also It brings huge damage and difficulty in control to the driving structure, so it is difficult to be used in space solar power plants or other large spacecraft.
发明内容Contents of the invention
本发明解决的技术问题是：克服现有导电关节接触摩损、空间放电和局部过热等问题，提供了一种基于电磁耦合无线能量传输的空间大功率导电旋转关节，可以实现空间太阳能电站太阳发电阵和发射天线阵的非接触电力连接，提高了空间太阳能电站的工作寿命、安全性以及工作效率。The technical problem solved by the present invention is to overcome the problems of contact wear, space discharge and local overheating of existing conductive joints, and provide a space high-power conductive rotary joint based on electromagnetic coupling wireless energy transmission, which can realize solar power generation in space solar power stations The non-contact power connection between the array and the transmitting antenna array improves the working life, safety and efficiency of the space solar power plant.
本发明的技术解决方案是：基于电磁耦合无线能量传输的空间大功率导电旋转关节，包括无线电力传输机构和驱动机构，其中无线电力传输机构又包括高频逆变模块、电磁发射系统、电磁接收系统、整流模块、导电滑环，驱动结构包括电机驱动器、电机、减速器和转轴；高频逆变模块、电磁发射系统和导电滑环固定于旋转侧外壳上，电磁接收系统、整流模块、电机驱动器、电机、减速器固定于静止侧外壳上，静止侧外壳上通过顶端轴承和底端轴承支撑在旋转侧外壳内部；旋转侧外壳的末端通过紧固螺栓与太阳电池阵的中心转轴固定，二者保持相对静止，静止侧外壳末端通过紧固螺栓与发射天线阵的中心转轴固定，二者保持相对静止；转轴的一端穿过静止侧外壳和旋转侧外壳后与太阳电池阵的中心转轴同轴，转轴的另一端与减速器同轴相连；太阳电池阵引出的电源线缆从旋转侧外壳的末端底部的功率线通孔进入并与高频逆变模块的输入端连接，太阳电池阵引出的信号线从旋转侧外壳末端底部的信号线通孔穿入导电滑环；电磁发射系统紧贴旋转侧外壳的内侧，电磁发射系统的线圈与高频逆变模块的输出端连接；电磁接收系统的线圈螺旋绕于磁芯上，磁芯固定于发射天线阵的基座上；电机的转轴与减速器同轴相连，电机的后端固定于静止侧外壳，整流模块和电机驱动器分别固定于静止侧外壳的上端和下端；电磁接收系统的线圈与整流模块的输入端相连，整流模块的输出端以及导电滑环的信号出线端均与发射天线阵相连；太阳电池阵内部的太阳敏感器将太阳方位信息通过导电滑环传送给发射天线阵，发射天线阵内部的控制计算机获得太阳方位信息后计算出太阳电池阵所需旋转的角度，并将旋转的角度对应的电机旋转圈数指令通过信号线发送给电机驱动器，电机驱动器根据指令产生脉冲信号来驱动电机，电机的转轴通过减速器提升转矩后带动转轴旋转所需角度，完成太阳电池阵的对日跟踪定向；太阳电池阵收集的太阳能转换成直流电功率，通过线缆传送给高频逆变模块，高频逆变模块将直流电功率逆变成交流电功率来驱动电磁发射系统，电磁发射系统通过线圈以电磁耦合能量传输形式将电能发送给电磁接收系统的线圈，整流模块将电磁接收系统接收到的交流电功率变换为直流电功率，再经过线缆输送给发射天线阵。The technical solution of the present invention is: a space high-power conductive rotary joint based on electromagnetic coupling wireless energy transmission, including a wireless power transmission mechanism and a drive mechanism, wherein the wireless power transmission mechanism includes a high-frequency inverter module, an electromagnetic transmitting system, an electromagnetic receiving System, rectification module, conductive slip ring, drive structure includes motor driver, motor, reducer and shaft; high frequency inverter module, electromagnetic emission system and conductive slip ring are fixed on the rotating side shell, electromagnetic receiving system, rectification module, motor The driver, motor, and reducer are fixed on the stationary side housing, which is supported inside the rotating side housing through the top bearing and the bottom end bearing; the end of the rotating side housing is fixed to the central shaft of the solar cell array through fastening bolts, and the two The latter remains relatively stationary, and the end of the stationary side casing is fixed to the central rotating shaft of the transmitting antenna array by fastening bolts, and the two remain relatively stationary; one end of the rotating shaft passes through the stationary side casing and the rotating side casing and is coaxial with the central rotating shaft of the solar cell array , the other end of the rotating shaft is coaxially connected with the reducer; the power cable from the solar cell array enters through the power line through hole at the bottom of the end of the rotating side housing and connects to the input end of the high-frequency inverter module; the power cable from the solar cell array The signal line penetrates the conductive slip ring through the signal line hole at the bottom of the end of the rotating side housing; the electromagnetic transmitting system is close to the inner side of the rotating side housing, and the coil of the electromagnetic transmitting system is connected to the output end of the high-frequency inverter module; the electromagnetic receiving system The coil is spirally wound on the magnetic core, and the magnetic core is fixed on the base of the transmitting antenna array; the rotating shaft of the motor is connected coaxially with the reducer, the rear end of the motor is fixed on the stationary side shell, and the rectifier module and the motor driver are respectively fixed on the stationary side The upper and lower ends of the casing; the coil of the electromagnetic receiving system is connected to the input terminal of the rectifier module, and the output terminal of the rectifier module and the signal outlet terminal of the conductive slip ring are connected to the transmitting antenna array; The information is transmitted to the transmitting antenna array through a conductive slip ring. The control computer inside the transmitting antenna array obtains the sun orientation information and calculates the required rotation angle of the solar cell array, and sends the motor rotation number corresponding to the rotation angle through the signal line. To the motor driver, the motor driver generates a pulse signal according to the command to drive the motor, and the motor shaft drives the shaft to rotate at the required angle after the torque is increased by the reducer to complete the tracking and orientation of the solar cell array; the solar energy collected by the solar cell array is converted into The DC power is transmitted to the high-frequency inverter module through the cable. The high-frequency inverter module inverts the DC power into AC power to drive the electromagnetic transmission system. The electromagnetic transmission system sends the electric energy to the electromagnetic receiver through the coil in the form of electromagnetic coupling energy transmission. The system's coil and rectifier module convert the AC power received by the electromagnetic receiving system into DC power, and then transmit it to the transmitting antenna array through cables.
所述的电磁发射系统的线圈与电磁接收系统的线圈采用非接触同轴安装方式。所述的电磁发射系统的线圈和电磁接收系统的线圈均采用镀银铜管构成，两个线圈之间的距离不超过10cm。所述的高频逆变模块所处理的高频电压频率在0.5MHz至25MHz之间，优选为1MHz。所述的高频逆变模块由聚酰亚胺板与导电滑环相隔。The coil of the electromagnetic transmitting system and the coil of the electromagnetic receiving system adopt a non-contact coaxial installation method. Both the coil of the electromagnetic transmitting system and the coil of the electromagnetic receiving system are made of silver-plated copper tubes, and the distance between the two coils is no more than 10 cm. The frequency of the high-frequency voltage processed by the high-frequency inverter module is between 0.5 MHz and 25 MHz, preferably 1 MHz. The high-frequency inverter module is separated from the conductive slip ring by a polyimide plate.
本发明与现有技术相比的优点在于：本发明导电旋转关节的旋转端和静止端采用同轴套筒式安装，旋转端作为外环，静止端作为内环，具有360度的旋转功能，能够灵活实现对日定向功能，克服部分现有不能实现360度旋转的导电关节必须通过驱动太阳发电阵的往复旋转实现对日定向造成的能量损耗大、结构损伤严重和控制难度大的弊端。本发明的导电关节采用电磁耦合能量传输的方式代替传统电刷与贵金属接触方式传输功率，由于旋转关节旋转端、静止端不接触，不会产生摩屑，克服了现有导电关节的接触式导电滑环由于滑环的摩擦力矩较大、滑动接触表面磨损严重、接触电阻较大、局部过热，引起短路或局部二次放电的问题，显著提升了导电关节的工作寿命以及导电关节输电效率。此外，本发明导电旋转关节采用电磁耦合能量传输系统和导电滑环组合方式实现电功率和信号的同时传输，避免了单一使用电磁耦合能量传输只能传输电功率无法准确传递信号的弊端。Compared with the prior art, the present invention has the advantages that: the rotating end and the stationary end of the conductive rotary joint of the present invention are installed in a coaxial sleeve, the rotating end is used as the outer ring, and the stationary end is used as the inner ring, which has a 360-degree rotation function, It can flexibly realize the function of orientation to the sun, and overcome the disadvantages of large energy loss, serious structural damage and difficult control caused by some existing conductive joints that cannot realize 360-degree rotation and must drive the reciprocating rotation of the solar array to achieve orientation to the sun. The conductive joint of the present invention adopts the method of electromagnetic coupling energy transmission instead of the traditional brush and precious metal contact mode to transmit power. Since the rotating end and the stationary end of the rotary joint do not contact, no friction will be generated, which overcomes the contact conduction of the existing conductive joint. Due to the large friction torque of the slip ring, the serious wear of the sliding contact surface, the large contact resistance, and local overheating, the problem of short circuit or local secondary discharge is caused, which significantly improves the working life of the conductive joint and the transmission efficiency of the conductive joint. In addition, the conductive rotary joint of the present invention adopts the combination of electromagnetic coupling energy transmission system and conductive slip ring to realize the simultaneous transmission of electric power and signal, avoiding the disadvantage that the single use of electromagnetic coupling energy transmission can only transmit electric power but cannot accurately transmit signals.
附图说明Description of drawings
图1为本发明大功率导电旋转关节在空间太阳能电站系统的布局示意图；Fig. 1 is a schematic layout diagram of a high-power conductive rotary joint of the present invention in a space solar power plant system;
图2为本发明大功率导电旋转关节的原理图；Fig. 2 is a schematic diagram of the high-power conductive rotary joint of the present invention;
图3为本发明大功率导电旋转关节的结构图。Fig. 3 is a structural diagram of the high-power conductive rotary joint of the present invention.
具体实施方式detailed description
电磁耦合无线能量传输技术可实现将电能从供电设备无线输送到用电设备，随着该技术的不断研究和发展，已经开始应用于小功率设备的充电，甚至可以为电动汽车充电。利用该技术的非接触式能量传输特点，可将大型航天器的导电旋转关节设计成具有电磁耦合无线传输功能的结构，克服传统导电关节由于滑环接触部分磨擦导致的摩擦损耗、二次放电和局部过热问题，提高航天器的工作寿命、安全性以及工作效率。Electromagnetic coupling wireless energy transmission technology can realize the wireless transmission of electric energy from power supply equipment to electric equipment. With the continuous research and development of this technology, it has begun to be applied to the charging of low-power equipment, and can even charge electric vehicles. Utilizing the non-contact energy transmission characteristics of this technology, the conductive rotary joints of large spacecraft can be designed as a structure with electromagnetic coupling wireless transmission function, which can overcome the friction loss, secondary discharge and Local overheating problem, improve the working life, safety and work efficiency of the spacecraft.
如图1所示，本发明的空间大功率导电旋转关节用于连接空间太阳能电站的太阳发电阵和发射天线阵，其中南导电旋转关节连接南太阳电池阵和发射天线阵，北导电旋转关节用于连接北太阳电池阵和发射天线阵。空间太阳能电站的发电过程如下：太阳电池阵收集太阳能并转换成电能经过导电关节传输给发射天线阵，发射天线阵将电能转换为微波能发射到地面；同时太阳电池阵通过内部的太阳敏感器感应太阳的方位信息，经过导电旋转关节传给发射天线阵内部的控制计算机，该控制计算机输出控制指令给导电旋转关节，使其旋转相应角度以实现对太阳的追踪定向，从而满足太阳电池阵能够最大程度的获得太阳能。As shown in Figure 1, the space high-power conductive rotary joint of the present invention is used to connect the solar power generation array and the transmitting antenna array of the space solar power station, wherein the south conductive rotary joint is connected to the south solar cell array and the transmitting antenna array, and the north conductive rotary joint is used It is used to connect the northern solar battery array and the transmitting antenna array. The power generation process of the space solar power station is as follows: the solar cell array collects solar energy and converts it into electrical energy and transmits it to the transmitting antenna array through conductive joints. The orientation information of the sun is transmitted to the control computer inside the transmitting antenna array through the conductive rotary joint, and the control computer outputs control commands to the conductive rotary joint to rotate the corresponding angle to realize the tracking and orientation of the sun, so as to meet the requirements of the maximum solar cell array. degree of access to solar energy.
如图2所示，本发明的空间大功率导电旋转关节，包括无线电力传输机构和驱动机构。无线电力传输机构又包括高频逆变模块2、电磁发射系统3、电磁接收系统4、整流模块5、导电滑环6，驱动结构包括电机驱动器8、电机9、减速器10和导电旋转关节的转轴11。As shown in Fig. 2, the space high-power conductive rotary joint of the present invention includes a wireless power transmission mechanism and a driving mechanism. The wireless power transmission mechanism also includes a high-frequency inverter module 2, an electromagnetic transmitting system 3, an electromagnetic receiving system 4, a rectifying module 5, and a conductive slip ring 6. The driving structure includes a motor driver 8, a motor 9, a reducer 10, and a conductive rotary joint. Shaft 11.
空间大功率导电旋转关节的工作原理如下：太阳电池阵1固定于导电旋转关节的旋转端，太阳电池阵1内部的太阳敏感器将太阳方位信息通过导电滑环6传送给星体或者发射天线阵7等负载。导电滑环6两侧均采用信号线与太阳电池阵1和发射天线阵7相连。发射天线阵7内部的控制计算机获得太阳方位信息后计算出太阳电池阵所需旋转的角度，并将旋转的角度对应的电机旋转圈数指令通过信号线发送给电机驱动器8，电机驱动器8根据指令产生脉冲信号来驱动电机9工作，电机9的转轴通过减速器10提升转矩后带动导电旋转关节的转轴11旋转所需角度，完成太阳电池阵1的对日跟踪定向。太阳电池阵1收集的太阳能转换成直流电功率，通过电源母线线缆传送给导电旋转关节的高频逆变模块2，高频逆变模块2将直流电功率逆变成高频交流电功率来驱动电磁发射系统3，高频电压频率可在0.5MHz至25MHz之间，最好选择1MHz附近频率，电磁发射系统3通过发射线圈以电磁耦合能量传输形式将电能发送给电磁接收系统4的接收线圈。其中，为了提高发射线圈与接收线圈的耦合系数，增加无线电力传输机构的输电效率，发射线圈和接收线圈采用高品质因数的线圈，并且二者距离应不超过10cm。电磁接收系统4接收到的交流电经过整流模块5的电源变换，将高频交流电功率变换为直流电功率，再经过母线线缆输送给发射天线阵7。The working principle of the space high-power conductive rotary joint is as follows: the solar battery array 1 is fixed on the rotating end of the conductive rotary joint, and the sun sensor inside the solar battery array 1 transmits the sun orientation information to the star or the transmitting antenna array 7 through the conductive slip ring 6 and other loads. Both sides of the conductive slip ring 6 are connected to the solar cell array 1 and the transmitting antenna array 7 by signal lines. The control computer inside the transmitting antenna array 7 obtains the sun orientation information and calculates the required rotation angle of the solar cell array, and sends the motor rotation circle instruction corresponding to the rotation angle to the motor driver 8 through the signal line, and the motor driver 8 according to the instruction A pulse signal is generated to drive the motor 9 to work. The rotating shaft of the motor 9 drives the rotating shaft 11 of the conductive rotary joint to rotate the required angle through the reducer 10 to increase the torque, and completes the tracking and orientation of the solar cell array 1 towards the sun. The solar energy collected by the solar cell array 1 is converted into DC power, which is transmitted to the high-frequency inverter module 2 of the conductive rotary joint through the power bus cable, and the high-frequency inverter module 2 converts the DC power into high-frequency AC power to drive electromagnetic emission In system 3, the frequency of the high-frequency voltage can be between 0.5MHz and 25MHz, preferably around 1MHz. The electromagnetic transmitting system 3 sends electric energy to the receiving coil of the electromagnetic receiving system 4 in the form of electromagnetic coupling energy transmission through the transmitting coil. Among them, in order to improve the coupling coefficient between the transmitting coil and the receiving coil and increase the transmission efficiency of the wireless power transmission mechanism, the transmitting coil and the receiving coil adopt coils with high quality factors, and the distance between them should not exceed 10cm. The AC power received by the electromagnetic receiving system 4 is converted by the power supply of the rectifier module 5 to convert the high-frequency AC power into DC power, and then transmit it to the transmitting antenna array 7 through the bus cable.
高频逆变模块2将大功率直流电能转换成高频交流电能，加载到电磁发射系统的螺旋线圈电路，可采用现有的高频功率放大模块。电磁发射系统3和电磁接收系统4由品质因素较高的耦合螺旋线圈和电容组成。整流模块5主要将电磁接收系统的高频电能整流转换成直流电能输出给负载。导电滑环6可采用典型的滑环式或滚环式导电滑环，该类产品已成功用于各国航天器的太阳帆板驱动机构，如MOOG公司TOPEX/Poseidon SADA、瑞士RUAG公司SEPTA23SADA。The high-frequency inverter module 2 converts high-power DC power into high-frequency AC power, and loads it into the helical coil circuit of the electromagnetic emission system. An existing high-frequency power amplification module can be used. The electromagnetic transmitting system 3 and the electromagnetic receiving system 4 are composed of coupling helical coils and capacitors with high quality factors. The rectification module 5 mainly rectifies and converts the high-frequency electric energy of the electromagnetic receiving system into direct current electric energy and outputs it to the load. The conductive slip ring 6 can be a typical slip ring type or rolling ring type conductive slip ring, which has been successfully used in the solar panel driving mechanism of spacecraft in various countries, such as TOPEX/Poseidon SADA of MOOG company and SEPTA23SADA of Swiss RUAG company.
本发明的空间大功率导电旋转关节内部结构如图3所示，该空间大功率导电旋转关节的旋转侧包括：紧固螺栓13、旋转侧外壳14、高频逆变模块2、底端轴承17、顶端轴承16、导电滑环6和电磁发射系统3。静止侧包括：电磁接收系统4、磁芯12、转轴11、减速器10、电机9、电机驱动器8、整流模块5和静止侧外壳15。The internal structure of the space high-power conductive rotary joint of the present invention is shown in Figure 3. The rotating side of the space high-power conductive rotary joint includes: fastening bolts 13, rotating side casing 14, high-frequency inverter module 2, and bottom bearing 17 , Top bearing 16, conductive slip ring 6 and electromagnetic emission system 3. The stationary side includes: an electromagnetic receiving system 4 , a magnetic core 12 , a rotating shaft 11 , a reducer 10 , a motor 9 , a motor driver 8 , a rectification module 5 and a stationary side casing 15 .
旋转侧外壳14末端通过紧固螺栓13与太阳电池阵1的中心转轴固定，二者保持相对静止；静止侧外壳15末端通过紧固螺栓13与发射天线阵7的中心转轴固定，二者保持相对静止。导电旋转关节的转轴11通过紧固螺栓13与旋转侧外壳14末端固定，转轴11与太阳电池阵1的中心转轴同轴，转轴11为钛合金空心轴。太阳电池阵1引出的电源线缆从旋转侧外壳14末端底部功率线通孔进入并与高频逆变模块2连接，太阳电池阵1引出的信号线从旋转侧外壳14末端底部信号线通孔穿入导电滑环6，高频逆变模块2由聚酰亚胺板与导电滑环6相隔。电磁发射系统3的螺旋线圈紧贴旋转侧外壳14的内侧，磁芯12形状为空心圆柱形，固定于发射天线阵7的基座上，电磁接收系统4的线圈螺旋绕于磁芯12上，线圈可采用镀银铜管构成。电机9的前端通过紧固螺栓13与减速器10同轴相连，电机9的后端通过紧固螺栓13固定于静止侧外壳15，整流模块5和电机驱动器8分别固定于静止侧外壳15的上端和下端。静止侧外壳15通过底端轴承17和顶端轴承16支撑在旋转侧外壳14内部。The end of the rotating side casing 14 is fixed to the central shaft of the solar cell array 1 by fastening bolts 13, and the two remain relatively stationary; the end of the stationary side casing 15 is fixed to the central shaft of the transmitting antenna array 7 by fastening bolts 13, and the two remain relatively stationary. still. The rotating shaft 11 of the conductive rotary joint is fixed to the end of the rotating side casing 14 through fastening bolts 13, the rotating shaft 11 is coaxial with the central rotating shaft of the solar cell array 1, and the rotating shaft 11 is a titanium alloy hollow shaft. The power cable leading out of the solar battery array 1 enters through the power line through hole at the bottom end of the rotating side housing 14 and connects with the high frequency inverter module 2, and the signal line leading out of the solar battery array 1 passes through the signal line through hole at the bottom end of the rotating side housing 14 Through the conductive slip ring 6, the high frequency inverter module 2 is separated from the conductive slip ring 6 by a polyimide plate. The helical coil of the electromagnetic transmitting system 3 is close to the inner side of the rotating side casing 14, the magnetic core 12 is hollow cylindrical in shape, and is fixed on the base of the transmitting antenna array 7, and the coil of the electromagnetic receiving system 4 is spirally wound on the magnetic core 12, Coils may be constructed of silver-plated copper tubing. The front end of the motor 9 is coaxially connected with the reducer 10 through fastening bolts 13, the rear end of the motor 9 is fixed to the stationary side casing 15 through fastening bolts 13, and the rectifier module 5 and the motor driver 8 are respectively fixed to the upper end of the stationary side casing 15 and lower end. The stationary side casing 15 is supported inside the rotating side casing 14 via a bottom end bearing 17 and a top end bearing 16 .
本发明说明书中未作详细描述的内容属本领域技术人员的公知技术。The content that is not described in detail in the description of the present invention belongs to the well-known technology of those skilled in the art.
| Application Number | Priority Date | Filing Date | Title |
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| CN201410381932.5ACN104158478B (en) | 2014-08-05 | 2014-08-05 | Space based on electromagnetic coupled wireless energy transfer high power conductive rotary joint |
| Application Number | Priority Date | Filing Date | Title |
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| CN201410381932.5ACN104158478B (en) | 2014-08-05 | 2014-08-05 | Space based on electromagnetic coupled wireless energy transfer high power conductive rotary joint |
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| CN104158478A CN104158478A (en) | 2014-11-19 |
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| CN201410381932.5AExpired - Fee RelatedCN104158478B (en) | 2014-08-05 | 2014-08-05 | Space based on electromagnetic coupled wireless energy transfer high power conductive rotary joint |
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