CN115663551B - Heavy-current flat-plate type rotary transmission device - Google Patents
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Abstract
Description
技术领域Technical field
本发明属于大电流旋转传输领域，具体涉及一种大电流平板式旋转传输装置。The invention belongs to the field of high-current rotary transmission, and specifically relates to a high-current flat-plate rotary transmission device.
背景技术Background technique
大电流放电过程中，通常采用大电缆连接电源和负载，但有的负载处于运动状态，采用电缆拖链方案可以满足负载在一定范围内的运动，可是会导致电缆需要较长的长度，影响系统效率，同时导通大电流的电缆截面积较大，体积和重量都较大，并且较大质量的电缆对负载运动会产生一定的非线性扰动，提高驱动机构的功率要求。因此需要一种大电流旋转传输装置，能够避免电缆非线性扰动，实现大电流导通条件下的负载运动。In the process of high current discharge, large cables are usually used to connect the power supply and the load. However, some loads are in motion. The cable drag chain solution can satisfy the load's movement within a certain range. However, this will cause the cable to need a longer length, affecting the system. Efficiency, cables that conduct large currents at the same time have larger cross-sectional areas, larger volumes and weights, and larger mass cables will produce certain nonlinear disturbances to the load movement, increasing the power requirements of the drive mechanism. Therefore, a large current rotating transmission device is needed that can avoid nonlinear cable disturbances and realize load movement under large current conduction conditions.
发明内容Contents of the invention
为解决上述技术问题，本发明提供一种大电流平板式旋转传输装置，其主要应用于大电流工作过程的电流传输装置，尤其是负载运动条件下的大电流旋转传输装置。In order to solve the above technical problems, the present invention provides a high-current flat-plate rotary transmission device, which is mainly used in current transmission devices during high-current operation, especially high-current rotary transmission devices under load movement conditions.
为达到上述目的，本发明采用的技术方案为：In order to achieve the above objects, the technical solutions adopted by the present invention are:
一种大电流平板式旋转传输装置，应用于大电流传输过程中，包括转子侧、定子侧驱动机构和跨接部件；所述转子侧和定子侧的电极为平面环状，平面环状电极呈同轴线布置；所述跨接部件的跨接部件固定端外侧跨接触头、跨接部件固定端中间跨接触头、跨接部件固定端内侧跨接触头，分别与转子侧的平面环状电极相连接，另外一端触头与定子侧的平面环状电极接触，且沿定子侧滑动；在驱动机构的驱动下，所述跨接部件的跨接部件滑动端内侧跨接触头、跨接部件滑动端中间跨接触头、跨接部件滑动端外侧跨接触头沿着定子侧的平面环状电极滑动，通过接触头与电极的接触面传输大电流，从而实现在定子侧和转子侧相对转动过程中大电流的传输。A large current flat plate rotary transmission device, used in the process of large current transmission, including a rotor side, a stator side driving mechanism and a bridging component; the electrodes on the rotor side and the stator side are planar annular electrodes, and the planar annular electrodes are in the shape of Coaxial line arrangement; the outer crossover contact at the fixed end of the crossover component, the middle crossover contact at the fixed end of the crossover component, and the crossover contact inside the fixed end of the crossover component are respectively connected with the planar annular electrode on the rotor side. connected, the other end contact contacts the planar annular electrode on the stator side and slides along the stator side; driven by the driving mechanism, the inner side of the sliding end of the bridging component slides across the contact head and bridging component The middle cross-over contact at the end and the outer cross-over contact at the sliding end of the cross-over component slide along the planar annular electrode on the stator side, and a large current is transmitted through the contact surface between the contact head and the electrode, thereby realizing the relative rotation between the stator side and the rotor side. Transmission of large currents.
进一步地，所述跨接部件一端固定于转子侧，另一端在定子侧平面环状电极上滑动；同时，在压力执行机构的作用下，所述跨接部件滑动端内侧跨接触头、跨接部件滑动端中间跨接触头、跨接部件滑动端外侧跨接触头分别与定子侧的平面环状电极具有良好接触，保证转动过程中大电流的可靠传输。Further, one end of the bridging component is fixed on the rotor side, and the other end slides on the planar annular electrode on the stator side; at the same time, under the action of the pressure actuator, the inner side of the sliding end of the bridging component spans the contacts, bridging The middle crossover contact at the sliding end of the component and the outer crossover contact at the sliding end of the crossover component have good contact with the planar annular electrode on the stator side, ensuring reliable transmission of large current during rotation.
进一步地，所述定子侧和转子侧的平面环状电极数量相等。Further, the number of planar annular electrodes on the stator side and the rotor side is equal.
进一步地，平面环状电极的数量大于或等于1。Further, the number of planar annular electrodes is greater than or equal to 1.
进一步地，所述转子侧的电极包括转子侧内侧环状电极、转子侧中间环状电极、转子侧外侧环状电极。Further, the electrodes on the rotor side include an inner annular electrode on the rotor side, a middle annular electrode on the rotor side, and an outer annular electrode on the rotor side.
进一步地，所述定子侧的电极包括定子侧内侧环状电极、定子侧中间环状电极、定子侧外侧环状电极。Further, the electrodes on the stator side include an inner annular electrode on the stator side, a middle annular electrode on the stator side, and an outer annular electrode on the stator side.
进一步地，所述定子侧还包含定子侧内侧环状电极与定子侧中间环状电极之间绝缘件、定子侧外侧环状电极与定子侧中间环状电极之间绝缘件、定子侧绝缘件。Further, the stator side also includes an insulator between the stator side inner annular electrode and the stator side middle annular electrode, an insulator between the stator side outer annular electrode and the stator side middle annular electrode, and a stator side insulator.
进一步地，所述跨接部件还包括跨接部件中间跨接金属导体与外侧跨接金属导体之间绝缘件、跨接部件中间跨接金属导体与内侧跨接金属导体之间绝缘件。Further, the bridging component further includes an insulating component between the middle bridging metal conductor and the outer bridging metal conductor of the bridging component, and an insulating component between the middle bridging metal conductor and the inner bridging metal conductor of the bridging component.
进一步地，所述转子侧还包括转子侧内侧环状电极与转子侧中间环状电极之间绝缘件、转子侧外侧环状电极与转子侧中间环状电极之间绝缘件、转子侧绝缘件。Further, the rotor side also includes an insulator between the rotor side inner annular electrode and the rotor side middle annular electrode, an insulator between the rotor side outer annular electrode and the rotor side middle annular electrode, and a rotor side insulator.
进一步地，所述跨接部件还包括跨接部件固定端外侧跨接触头、跨接部件固定端中间跨接触头、跨接部件固定端内侧跨接触头、跨接部件滑动端内侧跨接触头、跨接部件内侧跨接金属导体、跨接部件滑动端中间跨接触头、跨接部件中间跨接金属导体、跨接部件滑动端外侧跨接触头和跨接部件外侧跨接金属导体。Further, the bridging component further includes an outer bridging contact at the fixed end of the bridging component, a middle bridging contact at the fixed end of the bridging component, an inner bridging contact at the fixed end of the bridging component, and an inner bridging contact at the sliding end of the bridging component. The bridging component has a bridging metal conductor on the inside, a bridging contact in the middle of the sliding end of the bridging component, a bridging metal conductor in the middle of the bridging component, a bridging contact on the outside of the sliding end of the bridging component, and a bridging metal conductor on the outside of the bridging component.
有益效果：Beneficial effects:
采用本发明所述大电流旋转传输装置，满足负载在某一平面内沿圆周运动条件下的大电流旋转馈电，避免电缆非线性扰动，减小电缆需要较长的长度，提高系统效率，同时降低电缆的体积和重量。The large-current rotary transmission device of the present invention is used to meet the requirements of high-current rotary feeding under the condition that the load moves along a circle in a certain plane, avoid non-linear disturbance of the cable, reduce the need for a longer length of the cable, and improve the system efficiency. Reduce cable size and weight.
附图说明Description of the drawings
图1为本发明的大电流平板式旋转传输装置的整体结构示意图；Figure 1 is a schematic diagram of the overall structure of the high-current flat-plate rotary transmission device of the present invention;
图2为本发明的大电流平板式旋转传输装置的旋转示意图；Figure 2 is a rotation schematic diagram of the high-current flat-plate rotary transmission device of the present invention;
图3为本发明的跨接部件剖面图；Figure 3 is a cross-sectional view of the bridging component of the present invention;
图4为本发明的转子侧和定子侧剖面图。Figure 4 is a cross-sectional view of the rotor side and the stator side of the present invention.
附图标记如下：The reference numbers are as follows:
1-转子侧内侧环状电极；1-Inner ring electrode on the rotor side;
2-转子侧中间环状电极；2-The middle annular electrode on the rotor side;
3-转子侧外侧环状电极；3-Outer ring electrode on the rotor side;
4-定子侧内侧环状电极；4-The inner ring electrode on the stator side;
5-定子侧中间环状电极；5-The middle annular electrode on the stator side;
6-定子侧外侧环状电极；6-Stator side outer ring electrode;
7-转子侧内侧环状电极与转子侧中间环状电极之间绝缘件；7-Insulator between the inner ring electrode on the rotor side and the middle ring electrode on the rotor side;
8-转子侧外侧环状电极与转子侧中间环状电极之间绝缘件；8-Insulator between the outer annular electrode on the rotor side and the middle annular electrode on the rotor side;
9-定子侧内侧环状电极与定子侧中间环状电极之间绝缘件；9-Insulator between the inner ring electrode on the stator side and the middle ring electrode on the stator side;
10-定子侧外侧环状电极与定子侧中间环状电极之间绝缘件；10-Insulator between the outer annular electrode on the stator side and the middle annular electrode on the stator side;
11-转子侧绝缘件；11-Rotor side insulation;
12-定子侧绝缘件；12-Stator side insulation;
13-跨接部件；13-Jumping parts;
14-跨接部件固定端外侧跨接触头；14-The outer bridging contact at the fixed end of the bridging component;
15-跨接部件中间跨接金属导体与外侧跨接金属导体之间绝缘件；15-The insulating piece between the middle bridging metal conductor and the outer bridging metal conductor of the bridging component;
16-跨接部件固定端中间跨接触头；16-The middle jumper contact at the fixed end of the jumper component;
17-跨接部件中间跨接金属导体与内侧跨接金属导体之间绝缘件；17-The insulating piece between the middle bridging metal conductor and the inner bridging metal conductor of the bridging component;
18-跨接部件固定端内侧跨接触头；18-The inner crossover contact at the fixed end of the crossover component;
19-跨接部件滑动端内侧跨接触头；19-The inner crossover contact at the sliding end of the crossover component;
20-跨接部件内侧跨接金属导体；20-The inner side of the jumper component is connected to a metal conductor;
21-跨接部件滑动端中间跨接触头；21-The middle bridging contact at the sliding end of the bridging component;
22-跨接部件中间跨接金属导体；22-The jumper component is connected to a metal conductor in the middle;
23-跨接部件滑动端外侧跨接触头；23-The outer bridging contact at the sliding end of the bridging component;
24-跨接部件外侧跨接金属导体；24-The outside of the jumper component is connected to a metal conductor;
25-定子侧；25-Stator side;
26-转子侧；26-Rotor side;
27-驱动机构；27-Driving mechanism;
28-压力执行机构。28-Pressure actuator.
具体实施方式Detailed ways
为了使本发明的目的、技术方案及优点更加清楚明白，以下结合附图及实施例，对本发明进行进一步详细说明。应当理解，此处所描述的具体实施例仅仅用以解释本发明，并不用于限定本发明。此外，下面所描述的本发明各个实施方式中所涉及到的技术特征只要彼此之间未构成冲突就可以相互组合。In order to make the purpose, technical solutions and advantages of the present invention more clear, the present invention will be further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described here are only used to explain the present invention and are not intended to limit the present invention. In addition, the technical features involved in the various embodiments of the present invention described below can be combined with each other as long as they do not conflict with each other.
如图1，图4所示，以3个负载通路为示例，本发明的大电流平板式旋转传输装置，主要包含定子侧25、转子侧26、跨接部件13和驱动机构27四大部分。定子侧25和转子侧26为同轴线，驱动机构27驱动转子侧26绕轴线转动。As shown in Figures 1 and 4, taking three load paths as an example, the high-current flat-plate rotary transmission device of the present invention mainly includes four parts: the stator side 25, the rotor side 26, the bridging component 13 and the driving mechanism 27. The stator side 25 and the rotor side 26 are coaxial, and the driving mechanism 27 drives the rotor side 26 to rotate around the axis.
所述定子侧25包含定子侧内侧环状电极4、定子侧中间环状电极5、定子侧外侧环状电极6、定子侧内侧环状电极与定子侧中间环状电极之间绝缘件9、定子侧外侧环状电极与定子侧中间环状电极之间绝缘件10、定子侧绝缘件12。定子侧内侧环状电极4、定子侧中间环状电极5、定子侧外侧环状电极6、定子侧内侧环状电极与定子侧中间环状电极之间绝缘件9、定子侧外侧环状电极与定子侧中间环状电极之间绝缘件10、定子侧绝缘件12，均为同轴线设置，且定子侧内侧环状电极与定子侧中间环状电极之间绝缘件9、定子侧外侧环状电极与定子侧中间环状电极之间绝缘件10固定在定子侧绝缘件12上，三者同轴线，形成凹槽结构；将定子侧内侧环状电极4、定子侧中间环状电极5、定子侧外侧环状电极6分别固定于上述凹槽结构中。The stator side 25 includes a stator-side inner annular electrode 4, a stator-side middle annular electrode 5, a stator-side outer annular electrode 6, an insulator 9 between the stator-side inner annular electrode and the stator-side middle annular electrode, a stator Insulators 10 and stator-side insulators 12 are provided between the side outer annular electrode and the stator-side middle annular electrode. Stator side inner ring electrode 4, stator side middle ring electrode 5, stator side outer ring electrode 6, stator side inner ring electrode and stator side middle ring electrode insulator 9, stator side outer ring electrode and The insulator 10 between the stator side middle annular electrodes and the stator side insulator 12 are all coaxially arranged, and the insulator 9 between the stator side inner annular electrode and the stator side middle annular electrode, the stator side outer annular The insulator 10 between the electrode and the stator-side middle annular electrode is fixed on the stator-side insulator 12. The three are coaxial and form a groove structure; the stator-side inner annular electrode 4, the stator-side middle annular electrode 5, The outer annular electrodes 6 on the stator side are respectively fixed in the above-mentioned groove structures.
所述转子侧26包含转子侧内侧环状电极1、转子侧中间环状电极2、转子侧外侧环状电极3、转子侧内侧环状电极与中间环状电极间绝缘件7、转子侧外侧环状电极与中间环状电极间绝缘件8、转子侧绝缘件11、驱动机构27。转子侧内侧环状电极1、转子侧中间环状电极2、转子侧外侧环状电极3、转子侧内侧环状电极与转子侧中间环状电极间绝缘件7、转子侧外侧环状电极与转子侧中间环状电极间绝缘件8、转子侧绝缘件11、驱动机构27，均为同轴线设置，且转子侧内侧环状电极与转子侧中间环状电极间绝缘件7、转子侧外侧环状电极与转子侧中间环状电极间绝缘件8，均固定于转子侧绝缘件11上，三者同轴线，形成凹槽结构；将转子侧内侧环状电极1、转子侧中间环状电极2、转子侧外侧环状电极3分别固定于上述凹槽结构中，驱动机构27与上述部件均为同轴线，驱动转子侧26转动。转子侧26绕轴线转动。The rotor side 26 includes a rotor-side inner ring electrode 1, a rotor-side middle ring electrode 2, a rotor-side outer ring electrode 3, an insulator 7 between the rotor-side inner ring electrode and the middle ring electrode, a rotor-side outer ring. The insulator 8 between the electrode and the middle annular electrode, the rotor side insulator 11, and the driving mechanism 27. Rotor side inner ring electrode 1, rotor side middle ring electrode 2, rotor side outer ring electrode 3, rotor side inner ring electrode and rotor side middle ring electrode insulator 7, rotor side outer ring electrode and rotor The side middle annular inter-electrode insulator 8, the rotor side insulator 11, and the driving mechanism 27 are all coaxially arranged, and the rotor side inner annular electrode and the rotor side middle annular inter-electrode insulator 7, the rotor side outer ring The insulator 8 between the rotor-side electrode and the rotor-side middle annular electrode is fixed on the rotor-side insulator 11. The three are coaxial and form a groove structure; connect the rotor-side inner annular electrode 1 and the rotor-side middle annular electrode 2. The outer annular electrodes 3 on the rotor side are respectively fixed in the above-mentioned groove structures. The driving mechanism 27 and the above-mentioned components are coaxial and drive the rotor side 26 to rotate. The rotor side 26 rotates about the axis.
如图3所示，所述跨接部件13主要包含跨接部件内侧跨接金属导体20、跨接部件中间跨接金属导体22、跨接部件外侧跨接金属导体24、压力执行机构28、跨接部件中间跨接金属导体与外侧跨接金属导体之间绝缘件15、跨接部件中间跨接金属导体与内侧跨接金属导体之间绝缘件17。跨接部件中间跨接金属导体与外侧跨接金属导体之间绝缘件15位于跨接部件中间跨接金属导体22和跨接部件外侧跨接金属导体24之间；跨接部件中间跨接金属导体与内侧跨接金属导体之间绝缘件17位于跨接部件内侧跨接金属导体20和跨接部件中间跨接金属导体22之间。As shown in Figure 3, the bridging component 13 mainly includes a bridging metal conductor 20 on the inside of the bridging component, a bridging metal conductor 22 on the middle of the bridging component, a bridging metal conductor 24 on the outside of the bridging component, a pressure actuator 28, a span The insulating member 15 is between the middle bridging metal conductor and the outer bridging metal conductor of the connecting component, and the insulating member 17 is between the middle bridging metal conductor and the inner bridging metal conductor of the bridging component. The insulator 15 is located between the middle bridging metal conductor 22 of the bridging component and the outer bridging metal conductor 24 of the bridging component; the middle bridging metal conductor of the bridging component is The insulating member 17 between the inner bridging metal conductor is located between the bridging metal conductor 20 on the inner side of the bridging part and the bridging metal conductor 22 in the middle of the bridging part.
其中，所述跨接部件内侧跨接金属导体20对应跨接部件滑动端内侧跨接触头19、跨接部件固定端内侧跨接触头18，所述跨接部件中间跨接金属导体22分别对应跨接部件滑动端中间跨接触头21、跨接部件固定端中间跨接触头16，跨接部件外侧跨接金属导体24对应跨接部件滑动端外侧跨接触头23、跨接部件固定端外侧跨接触头14。跨接部件13的一端与转子侧26固定，其中跨接部件固定端外侧跨接触头14、跨接部件固定端中间跨接触头16、跨接部件固定端内侧跨接触头18分别与转子侧26的转子侧内侧环状电极1、转子侧中间环状电极2、转子侧外侧环状电极3相连接，另外一端与定子侧25相接触，其中跨接部件滑动端内侧跨接触头19、跨接部件滑动端中间跨接触头21、跨接部件滑动端外侧跨接触头23与定子侧25的定子侧内侧环状电极4、定子侧中间环状电极5、定子侧外侧环状电极6相对应，并且跨接触头能沿定子侧滑动。压力执行机构28向接触界面施加一定压力，接触界面接触良好，保证大电流可靠导通。其中跨接部件13应具有刚度高，导电性好等特点。大电流由定子侧25经过多个跨接部件13流至转子侧26。跨接部件13的一端与转子侧26固定，另外一端与定子侧25滑动接触，通过压力执行机构28对接触界面施加一定压力，保持接触界面良好接触，又不影响接触界面的相对滑动。驱动机构27驱动转子侧26转动，跨接部件13随着一起转动，另一端的跨接部件滑动端内侧跨接触头19、跨接部件滑动端中间跨接触头21、跨接部件滑动端外侧跨接触头23沿着定子侧的环状滑动，并保持良好的接触状态，实现大电流可靠旋转传输。Among them, the inner bridging metal conductor 20 of the bridging component corresponds to the bridging contact 19 inside the sliding end of the bridging component and the inner bridging contact 18 of the fixed end of the bridging component. The middle bridging metal conductor 22 of the bridging component corresponds to the crossing contact respectively. The middle jumper contact 21 at the sliding end of the jumper component and the middle jumper contact 16 at the fixed end of the jumper component. The outer jumper metal conductor 24 corresponds to the outer jumper contact 23 at the sliding end of the jumper component and the outer jumper contact at the fixed end of the jumper component. Head 14. One end of the bridging component 13 is fixed to the rotor side 26, wherein the bridging component fixed end outer bridging contact 14, the bridging component fixed end middle bridging contact 16, the bridging component fixed end inner bridging contact 18 are respectively connected to the rotor side 26 The rotor side inner annular electrode 1, the rotor side middle annular electrode 2, the rotor side outer annular electrode 3 are connected, and the other end is in contact with the stator side 25, in which the inner side of the bridging component sliding end spans the contact 19, the bridging The middle crossover contact 21 at the sliding end of the component and the outer crossover contact 23 at the sliding end of the crossover component correspond to the stator side inner annular electrode 4, the stator side middle annular electrode 5, and the stator side outer annular electrode 6 on the stator side 25, And the crossover contact can slide along the stator side. The pressure actuator 28 applies a certain pressure to the contact interface, and the contact interface is in good contact to ensure reliable conduction of large currents. Among them, the bridging component 13 should have the characteristics of high rigidity and good conductivity. A large current flows from the stator side 25 to the rotor side 26 via a plurality of bridging components 13 . One end of the bridging component 13 is fixed to the rotor side 26, and the other end is in sliding contact with the stator side 25. The pressure actuator 28 exerts a certain pressure on the contact interface to maintain good contact without affecting the relative sliding of the contact interface. The driving mechanism 27 drives the rotor side 26 to rotate, and the bridging component 13 rotates along with it. The inner bridging contact 19 of the bridging component sliding end, the middle bridging contact 21 of the bridging component sliding end, and the outer bridging component sliding end of the other end The contact head 23 slides along the ring on the stator side and maintains a good contact state to achieve reliable rotational transmission of large current.
如图2所示，本发明的大电流平板式旋转传输装置工作过程如下：As shown in Figure 2, the working process of the high-current flat-plate rotary transmission device of the present invention is as follows:
大电流流入定子侧25，驱动机构27驱动转子侧26转动，由于跨接部件13一端与转子侧26固定，跨接部件固定端随转子侧26一起转动，跨接部件13另一端的跨接部件滑动端内侧跨接触头19、跨接部件滑动端中间跨接触头21、跨接部件滑动端外侧跨接触头23沿着定子侧25的定子侧内侧环状电极4、定子侧中间环状电极5、定子侧外侧环状电极6滑动，压力执行机构28向接触界面施加一定压力，接触界面接触良好，保证大电流可靠导通。至此，大电流经过定子侧25、跨接部件13、转子侧26，送至负载，完成大电流旋转传输。A large current flows into the stator side 25, and the driving mechanism 27 drives the rotor side 26 to rotate. Since one end of the bridging component 13 is fixed to the rotor side 26, the fixed end of the bridging component rotates together with the rotor side 26, and the bridging component at the other end of the bridging component 13 The sliding end inner crossover contact 19, the crossover component sliding end intermediate crossover contact 21, the crossover component sliding end outer crossover contact 23, the stator side inner annular electrode 4 and the stator side intermediate annular electrode 5 along the stator side 25 , the outer annular electrode 6 on the stator side slides, and the pressure actuator 28 applies a certain pressure to the contact interface. The contact interface is in good contact, ensuring reliable conduction of large currents. At this point, the large current passes through the stator side 25, the bridging component 13, and the rotor side 26, and is sent to the load, completing the rotational transmission of the large current.
上面结合说明书附图对本发明实施例进行了说明，但本发明不受上述实施例的限制，可以在权利要求的范围内改动，如果本发明技术方案的启发下做的改变，替代，组合，简化，而并非实质性的改变，只要符合本发明的目的，不背离本发明的技术原理和发明构思，都属于本发明的保护范围。The embodiments of the present invention have been described above in conjunction with the description and drawings, but the present invention is not limited by the above embodiments and can be modified within the scope of the claims. If changes, substitutions, combinations, and simplifications are made inspired by the technical solution of the present invention, , rather than substantial changes, as long as they meet the purpose of the present invention and do not deviate from the technical principles and inventive concepts of the present invention, they all fall within the protection scope of the present invention.
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| CN101635421A (en) * | 2008-07-16 | 2010-01-27 | 汪文捷 | Rotary power supply converter |
| CN104981951A (en) * | 2013-02-07 | 2015-10-14 | Abb技术有限公司 | Slip ring arrangement |
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| CN214798129U (en) * | 2021-04-07 | 2021-11-19 | 中汽研汽车检验中心(宁波)有限公司 | Sliding wire connector |
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| JP3607928B2 (en) * | 2001-01-31 | 2005-01-05 | ビー・エル・オートテック株式会社 | Rotary joint |
| US10418770B2 (en) * | 2016-05-31 | 2019-09-17 | Bae Systems Land & Armaments L.P. | Multi-directional high current slip ring |
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| CN101635421A (en) * | 2008-07-16 | 2010-01-27 | 汪文捷 | Rotary power supply converter |
| CN104981951A (en) * | 2013-02-07 | 2015-10-14 | Abb技术有限公司 | Slip ring arrangement |
| CN211743619U (en) * | 2020-05-08 | 2020-10-23 | 王西哲 | New type of brush holder structure |
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