Energy transmission structure, energy transmission component and manufacturing method of space on-orbit centrifuge

Abstract

The invention relates to an energy transmission structure, an energy transmission component and a manufacturing method of an on-orbit space centrifuge. The energy transmission structure of the on-orbit space centrifuge comprises a transmitting end coupler housing, a transmitting end insulating cover plate, a transmitting end coil, a transmitting end magnetic core, a first transmitting end circuit board, a second transmitting end circuit board, a third transmitting end circuit board and a transmitting end heat conducting plate. The transmitting end coupler housing and the transmitting end insulating cover plate are both ring-shaped, one side of the transmitting end coupler housing is an open structure, the transmitting end insulating cover plate is adapted to cover the open structure and form a first assembly space, the transmitting end coil and the transmitting end magnetic core are both installed in the first assembly space; the first transmitting end circuit board, the second transmitting end circuit board and the third transmitting end circuit board are sequentially arranged at intervals on the inner ring side of the transmitting end coupler housing, a transmitting end copper stud is installed on one side of the second transmitting end circuit board; a transmitting end heat conducting plate is provided on the side of the third transmitting end circuit board away from the second transmitting end circuit board.

Description

Technical Field

[0001] The present invention relates to the technical field related to on-orbit variable gravity cabinets in space, and in particular to an energy transmission structure, an energy transmission component and a manufacturing method of an on-orbit centrifuge in space. Background Art

[0002] The application of high-efficiency wireless energy transmission technology is to invert the DC input into high-frequency AC through an inverter circuit. The high-frequency AC induces an alternating magnetic field through an electromagnetic coupler. Due to the cross-linked magnetic flux between the receiving end and the transmitting end, the receiving end can induce an alternating electromotive force, and finally output stable electric energy to the load through rectification and power regulation.

[0003] The technical background of energy transmission technology based on rotating structure is to transmit energy from stator to rotor load without friction, with high power and high efficiency when the centrifuge rotates, and provide wireless communication interface to the load based on energy link. According to the above characteristics, the key technical points are: high-power and high-efficiency wireless energy transmission technology; coupler design and process; wireless communication technology based on energy link. Therefore, reasonable coupler structure design and process are the basis of centrifuge energy transmission. Summary of the invention

[0004] In order to solve one or more of the technical problems existing in the prior art, the present invention provides an energy transmission structure, an energy transmission component and a manufacturing method of an on-orbit centrifuge in space.

[0005] The technical solution of the present invention to solve the above technical problems is as follows: an energy transmission structure of an on-orbit space centrifuge includes a transmitting end coupler housing, a transmitting end insulating cover, a transmitting end coil, a transmitting end magnetic core, a first transmitting end circuit board, a second transmitting end circuit board, a third transmitting end circuit board and a transmitting end heat conducting plate, the transmitting end coupler housing and the transmitting end insulating cover are both annular, one side of the transmitting end coupler housing is an open structure, the transmitting end insulating cover is adapted to cover the open structure and encloses the transmitting end coupler housing to form a first assembly space, the transmitting end coil and the transmitting end magnetic core are both installed in the first assembly space;

[0006] The first transmitting end circuit board and the second transmitting end circuit board are arranged at intervals on the inner ring side of the transmitting end coupler housing, the third transmitting end circuit board is installed on the end face on the other side of the transmitting end coupler housing, and the second transmitting end circuit board is located between the first transmitting end circuit board and the third transmitting end circuit board; transmitting end copper studs are installed between the second transmitting end circuit board and the third transmitting end circuit board; a transmitting end heat conducting plate is also provided on a side of the third transmitting end circuit board away from the second transmitting end circuit board, and a fourth transmitting end circuit board and a transmitting end cover plate are also provided on the outer side of the transmitting end heat conducting plate, and the fourth transmitting end circuit board is located between the transmitting end cover plate and the transmitting end heat conducting plate.

[0007] The beneficial effects of the present invention are as follows: the energy transmission structure of the space on-orbit centrifuge of the present invention can be used for the wireless energy transmission sending end, has a compact and stable structure, can meet the assembly requirements of the limited space of the space laboratory cabinet, and by arranging the heat conducting plate and the copper studs, can effectively transfer the heat of each circuit board, has good heat dissipation effect, and has stable performance.

[0008] Based on the above technical solution, the present invention can also be improved as follows.

[0009] Furthermore, a sending-end thermal conductive pad is provided on the inner surface of the sending-end thermal conductive plate, and the sending-end thermal conductive pad is installed on the sending-end thermal conductive plate through bolts and guide pins.

[0010] The beneficial effect of adopting the above further solution is that by providing a transmitting end heat conductive pad, the heat on the third transmitting end circuit board can be transferred to the transmitting end heat conductive plate.

[0011] Furthermore, the third transmitting-end circuit board is fixedly connected to the second transmitting-end circuit board by a plurality of transmitting-end screws, one of which is a copper screw; a first assembly interval is reserved between the middle of the transmitting-end heat conducting plate and the third transmitting-end circuit board, and the screw head of the transmitting-end screw and the screw head of the copper screw are both located in the first assembly interval; the screw head of the copper screw abuts against the transmitting-end heat conducting plate.

[0012] The beneficial effect of adopting the above further solution is that the heat of the third sending-end circuit board can be transferred to the sending-end heat conducting plate by arranging the copper screws.

[0013] A method for manufacturing an energy transmission structure of an on-orbit centrifuge in space, comprising the following steps:

[0014] S1, making coils: using 500 strands of Litz wire, winding 8.5 turns in two layers to form a transmitting end coil; specifically, firstly, in an insulating tooling disk, starting from the inner lead end, tightly wind the first layer of coil from the inside to the outside, and then wind the second layer of coil from the outside to the inside; both the coil lead end and the winding end are covered with heat shrink tubes, and tinned;

[0015] The transmitting end coil and the transmitting end magnetic core are tied and fixed in the transmitting end coupler housing by using nylon rope, and the transmitting end coil is not higher than the open end surface of the transmitting end coupler housing during fixing;

[0016] S2, potting: clean the transmitting coil, transmitting magnetic core, transmitting coupler housing and transmitting insulation cover; mix and degas the organic silica gel;

[0017] Install the transmitting end insulation cover plate on the open end of the transmitting end coupler housing, and slowly inject the organic silica gel into the first assembly space from the injection hole of the transmitting end insulation cover plate;

[0018] After potting, vacuum degassing is performed and the potting condition is observed after vulcanization;

[0019] S3, first install the second transmitting end circuit board in the middle position of the inner ring side of the transmitting end coupler housing, then install the first transmitting end circuit board and the third transmitting end circuit board, and then install the transmitting end heat conduction plate and the fourth transmitting end circuit board in sequence on the outside of the third transmitting end circuit board.

[0020] The beneficial effects of the present invention are as follows: the manufacturing method of the present invention uses organic silicone to encapsulate the transmitting end coil and the transmitting end magnetic core in the transmitting end coupler housing, and only performs curing treatment on the inside of the coil. The method is simple, can meet the wireless energy transmission requirements of the centrifuge load, and is also suitable for the limited assembly space of the centrifuge.

[0021] An energy transmission structure of an on-orbit space centrifuge comprises a receiving end coupler housing, a receiving end insulating cover plate, a receiving end coil, a receiving end magnetic core, a first receiving end circuit board, a second receiving end circuit board, a third receiving end circuit board, an energy transmission cover plate and a receiving end heat conducting plate, wherein the receiving end coupler housing and the receiving end insulating cover plate are both annular, one side of the receiving end coupler housing is an open structure, the receiving end insulating cover plate is adapted to cover the open structure and encloses the receiving end coupler housing to form a second assembly space, and the receiving end coil and the receiving end magnetic core are both installed in the second assembly space;

[0022] The first receiving-end circuit board and the second receiving-end circuit board are arranged at intervals on the inner ring side of the receiving-end coupler housing, the third receiving-end circuit board is installed on the end surface of the other side of the receiving-end coupler housing, and the second receiving-end circuit board is located between the first receiving-end circuit board and the third receiving-end circuit board; a receiving-end copper stud is installed between the second receiving-end circuit board and the third receiving-end circuit board, and the third receiving-end circuit board is fixedly connected to the second receiving-end circuit board by a plurality of receiving-end screws;

[0023] The energy transfer cover is installed on the other side of the receiving end coupler housing, and the inner side surface of the energy transfer cover is provided with a receiving end heat conduction plate.

[0024] The beneficial effects of the present invention are as follows: the energy transmission structure of the space on-orbit centrifuge of the present invention can be used for the wireless energy transmission receiving end, has a compact and stable structure, can meet the assembly requirements of the limited space of the space laboratory cabinet, and by arranging the heat conducting plate and the copper studs, can effectively transfer the heat of each circuit board, has good heat dissipation effect, and has stable performance.

[0025] Furthermore, thermal conductive silicone grease is coated between the receiving end heat conducting plate and the inner side surface of the energy transfer cover plate.

[0026] The beneficial effect of adopting the above further solution is that the thermally conductive silicone further improves the heat dissipation performance.

[0027] Furthermore, a receiving end thermal pad is attached to a side surface of the receiving end thermal conductive plate facing away from the energy transfer cover plate.

[0028] Furthermore, a handle is provided on the outer side of the energy transmission cover.

[0029] The method for manufacturing the energy transmission structure of the above-mentioned space on-orbit centrifuge comprises the following steps:

[0030] S1, making coils: using 200 strands of Litz wire to wind 14.5 turns in two layers to form a receiving end coil; specifically, firstly, in an insulating tooling disk, start from the inner lead end and wind the first layer of coils from the inside to the outside, and then wind the second layer of coils from the outside to the inside; when it is necessary to wind the third layer of coils, wind the third layer of coils from the inside to the outside, and wind the winding end from the bottom of the coil back to the inner lead end; both the coil lead end and the winding end are covered with heat shrink tubes, and tinned;

[0031] The receiving end coil and the receiving end magnetic core are tied and fixed in the receiving end coupler housing by using nylon rope, and the receiving end coil is not higher than the open end surface of the receiving end coupler housing during fixing;

[0032] S2, potting: clean the receiving end coil, receiving end magnetic core, receiving end coupler housing and receiving end insulation cover; mix and degas the organic silica gel;

[0033] Install the receiving end insulation cover plate on the open end of the receiving end coupler housing, and slowly inject organic silica gel into the second assembly space from the injection hole of the receiving end insulation cover plate;

[0034] After potting, vacuum degassing is performed and the potting condition is observed after vulcanization;

[0035] S3, first install the second receiving end circuit board in the middle of the inner ring side of the receiving end coupler housing, then install the first receiving end circuit board and the third receiving end circuit board, and then install the receiving end heat conduction plate and the energy transfer cover plate on the outside of the third receiving end circuit board in sequence. Gluing is to solidify the coil, which is a vacuum immersion paint. Gluing is inside the coupler and then vacuuming. The method is simpler and only targets the inside of the coil, and the outside does not need to be processed. It is conducive to space experiments. It has little impact on the health of astronauts.

[0036] The beneficial effects of the present invention are as follows: the manufacturing method of the present invention uses organic silicone to encapsulate the transmitting end coil and the transmitting end magnetic core in the transmitting end coupler housing, and only performs curing treatment on the inside of the coil. The method is simple, can meet the wireless energy transmission requirements of the centrifuge load, and is also suitable for the limited assembly space of the centrifuge.

[0037] An energy transmission component includes the energy transmission structures of the two space-orbit centrifuges mentioned above; one energy transmission structure of the space-orbit centrifuge is installed on the stator of the centrifuge as a wireless energy transmission transmitting end, and the other energy transmission structure of the space-orbit centrifuge is installed on the rotor of the centrifuge as a wireless energy transmission receiving end; the insulating cover plate of the transmitting end and the insulating cover plate of the receiving end are arranged relatively spaced apart.

[0038] The beneficial effects of the present invention are as follows: the energy transmission component of the present invention can meet the energy transmission requirements of a space centrifuge, has a stable and reliable structure, and reduces wear and energy consumption. BRIEF DESCRIPTION OF THE DRAWINGS

[0039] Figure 1 The three-dimensional structure of the energy transmission component of the present invention is shown in FIG. Figure 1 ;

[0040] Figure 2 The three-dimensional structure of the energy transmission component of the present invention is shown in FIG. Figure 2 ;

[0041] Figure 3 It is a schematic cross-sectional structural diagram of the wireless energy transmission receiving end of the present invention;

[0042] Figure 4 It is a schematic cross-sectional structural diagram of the wireless energy transmission end of the present invention.

[0043] In the accompanying drawings, the components represented by the reference numerals are listed as follows:

[0044] 100, wireless energy transmission transmitting end; 200, wireless energy transmission receiving end;

[0045] 1. Transmitter coupler housing; 11. Transmitter insulation cover; 12. Transmitter coil; 13. Transmitter magnetic core; 14. First transmitter circuit board; 15. Second transmitter circuit board; 16. Third transmitter circuit board; 17. Transmitter heat conduction plate; 18. Transmitter cover; 19. Fourth transmitter circuit board; 191. Transmitter copper stud; 192. Guide nail; 193. Transmitter screw;

[0046] 2. Receiving end coupler housing; 21. Receiving end insulating cover; 22. Receiving end coil; 23. Receiving end magnetic core; 24. First receiving end circuit board; 25. Second receiving end circuit board; 26. Third receiving end circuit board; 27. Energy transfer cover; 28. Receiving end heat conduction plate; 29. ​​Receiving end screw; 290. Handle; 291. Receiving end copper stud. DETAILED DESCRIPTION

[0047] The principles and features of the present invention are described below in conjunction with the accompanying drawings. The examples given are only used to explain the present invention and are not used to limit the scope of the present invention.

[0048] like Figure 1 , Figure 2 and Figure 4 As shown, this embodiment provides an energy transmission structure of an on-orbit centrifuge in space, which can be used as a wireless energy transmission transmitter 100, including a transmitter coupler housing 1, a transmitter insulation cover 11, a transmitter coil 12, a transmitter magnetic core 13, a first transmitter circuit board 14, a second transmitter circuit board 15, a third transmitter circuit board 16 and a transmitter heat conducting plate 17, wherein the transmitter coupler housing 1 and the transmitter insulation cover 11 are both annular, and one side of the transmitter coupler housing 1 is an open structure, the transmitter insulation cover 11 is adapted to cover the open structure and enclose the transmitter coupler housing 1 to form a first assembly space, and the transmitter coil 12 and the transmitter magnetic core 13 are both installed in the first assembly space;

[0049] The first transmitting end circuit board 14 and the second transmitting end circuit board 15 are arranged at intervals on the inner ring side of the transmitting end coupler housing 1, and the third transmitting end circuit board 16 is installed on the end face of the other side of the transmitting end coupler housing 1, and the second transmitting end circuit board 15 is located between the first transmitting end circuit board 14 and the third transmitting end circuit board 16; a transmitting end copper stud 191 is installed between the second transmitting end circuit board 15 and the third transmitting end circuit board 16; a transmitting end heat conducting plate 17 is also provided on the side of the third transmitting end circuit board 16 facing away from the second transmitting end circuit board 15, and a fourth transmitting end circuit board 19 and a transmitting end cover plate 18 are also provided on the outer side of the transmitting end heat conducting plate 17, and the fourth transmitting end circuit board 19 is located between the transmitting end cover plate 18 and the transmitting end heat conducting plate 17.

[0050] The energy transmission structure of the space-orbit centrifuge of this embodiment can be used for the wireless energy transmission transmitting end, has a compact and stable structure, can meet the assembly requirements of the limited space of the space laboratory cabinet, and by arranging the heat conducting plate and the copper studs, can effectively transfer the heat of each circuit board, with good heat dissipation effect and stable performance.

[0051] An optional solution of this embodiment is that a sending-end heat conductive pad is provided on the inner surface of the sending-end heat conductive plate 17, and the sending-end heat conductive pad is installed on the sending-end heat conductive plate 17 by bolts and guide pins 192. By providing the sending-end heat conductive pad, the heat on the third sending-end circuit board can be transferred to the sending-end heat conductive plate. The provision of the guide pins 192 facilitates assembly to the centrifuge or cabinet.

[0052] like Figure 4As shown, another optional solution of this embodiment is that the third sending-end circuit board 16 is fixedly connected to the second sending-end circuit board 15 by a plurality of sending-end screws 193, one of which is a copper screw; a first assembly interval is reserved between the middle of the sending-end heat conducting plate 17 and the third sending-end circuit board 16, and the screw head of the sending-end screw 193 and the screw head of the copper screw are both located in the first assembly interval; the screw head of the copper screw abuts against the sending-end heat conducting plate 17. By providing the copper screw, the heat of the third sending-end circuit board can be transferred to the sending-end heat conducting plate.

[0053] Specifically, Figure 4 As shown, one end of the copper stud 191 at the transmitting end of this embodiment is an external thread structure, and the other end is an internal thread structure. The purpose of the copper stud 191 at the transmitting end is to connect the second transmitting end circuit board 15 with the third transmitting end circuit board 16. The external thread structure of the copper stud 191 at the transmitting end can be passed through the second transmitting end circuit board 15 and fixed with a nut, and the internal thread structure of the copper stud 191 at the transmitting end is abutted against the third transmitting end circuit board 16, and then fixed through the third transmitting end circuit board 16 with an ordinary screw or a copper screw. In this way, effective heat transfer can be achieved and heat dissipation efficiency can be improved. Specifically, multiple copper studs and copper screws can be set in the area where electrical components are concentrated.

[0054] Preferably, in this embodiment, both a transmitting-end thermal pad and a copper screw may be provided, and the screw head of the copper screw may be abutted against the transmitting-end thermal pad, and the copper screw and the transmitting-end thermal pad may be used to conduct heat.

[0055] The method for manufacturing the energy transmission structure of the above-mentioned space on-orbit centrifuge comprises the following steps:

[0056] S1, making coils: using 500 strands of Litz wire, winding 8.5 turns in two layers to form a transmitting end coil; specifically, firstly, in an insulating tooling disk, starting from the inner lead end, tightly wind the first layer of coil from the inside to the outside, and then wind the second layer of coil from the outside to the inside; both the coil lead end and the winding end are covered with heat shrink tubes, and tinned;

[0057] The transmitting end coil 12 and the transmitting end magnetic core 13 are tied and fixed in the transmitting end coupler housing 1 by using nylon rope, and the transmitting end coil 12 is not higher than the open end surface of the transmitting end coupler housing 1 during the fixing; specifically, the transmitting end magnetic core 13 and the transmitting end coil 12 are installed in the transmitting end coupler housing 1 in sequence, and the nylon rope is passed through the bottom through hole of the transmitting end coupler housing 1, and is tied and positioned through the notch on the upper surface of the transmitting end magnetic core 13; the bottom through hole of the transmitting end coupler housing 1 is filled and leak detection is performed;

[0058] S2, (the coil core, etc. can be tested before potting as needed) Potting: Use organic solvents such as alcohol and acetone to clean the transmitter coil 12, the transmitter core 13, the transmitter coupler housing 1 and the transmitter insulation cover 11; weigh the M and N components of GN-521 silicone gel at 0.5kg:0.5kg, place them in a clean container, and mix them thoroughly at 23°C, paying attention to scraping the bottom and side walls of the mixing container. In order to ensure that there are no bubble defects in the rubber after vulcanization, place the mixed rubber together with the mixing container in a vacuum degassing equipment, and keep degassing for 3 minutes under a vacuum degree of not less than 98.7kPa. Perform the "glue filling-degassing again" operation according to the liquid level until it is filled without bubbles. Fill the coupler hole with GD414 and check for leaks.

[0059] Install the transmitting end insulating cover plate 11 on the open end of the transmitting end coupler housing 1, and slowly inject the organic silica gel into the first assembly space from the injection hole of the transmitting end insulating cover plate 11;

[0060] After potting, vacuum degassing is performed, and the potting condition is observed after vulcanization; after vulcanization at 80°C for 4 hours, the potting condition is observed. Use ethanol cotton balls or isopropyl alcohol cotton balls to wipe off the excess glue outside the potting area. The potting method of this embodiment can also refer to the technical requirements for silicone rubber bonding and potting of aerospace electronic and electrical products.

[0061] S3, first install the second transmitting end circuit board 15 in the middle position of the inner ring side of the transmitting end coupler housing 1, then install the first transmitting end circuit board 14 and the third transmitting end circuit board 16, and then install the transmitting end heat conducting plate 17 and the fourth transmitting end circuit board 19 in sequence on the outside of the third transmitting end circuit board 16.

[0062] The manufacturing method of this embodiment uses organic silicone to pot the transmitting end coil and the transmitting end magnetic core in the transmitting end coupler housing, and only performs curing treatment on the inside of the coil. The method is simple, can meet the wireless energy transmission requirements of the centrifuge load, and is also suitable for the limited assembly space of the centrifuge.

[0063] like Figure 1 , Figure 2 and Figure 4As shown, this embodiment provides an energy transmission structure of an on-orbit space centrifuge, which can be used as a wireless energy transmission receiving end 200, including a receiving end coupler housing 2, a receiving end insulating cover plate 21, a receiving end coil 22, a receiving end magnetic core 23, a first receiving end circuit board 24, a second receiving end circuit board 25, a third receiving end circuit board 26, an energy transmission cover plate 27 and a receiving end heat conducting plate 28, wherein the receiving end coupler housing 2 and the receiving end insulating cover plate 21 are both annular, and one side of the receiving end coupler housing 2 is an open structure, the receiving end insulating cover plate 21 is adapted to cover the open structure and enclose the receiving end coupler housing 2 to form a second assembly space, and the receiving end coil and the receiving end magnetic core are both installed in the second assembly space;

[0064] The first receiving-end circuit board 24 and the second receiving-end circuit board 25 are arranged at intervals on the inner ring side of the receiving-end coupler housing 2, and the third receiving-end circuit board 26 is installed on the end surface of the other side of the receiving-end coupler housing 2, and the second receiving-end circuit board 25 is located between the first receiving-end circuit board 24 and the third receiving-end circuit board 26; a receiving-end copper stud 291 is installed between the second receiving-end circuit board 25 and the third receiving-end circuit board 26, and the third receiving-end circuit board 26 is fixedly connected to the second receiving-end circuit board 25 by a plurality of receiving-end screws 29;

[0065] The energy transfer cover plate 27 is installed on the other side of the receiving end coupler housing 2 , and a receiving end heat conduction plate 28 is provided on the inner side surface of the energy transfer cover plate 27 .

[0066] Specifically, Figure 3 As shown, one end of the receiving end copper stud 291 of this embodiment is an external thread structure, and the other end is an internal thread structure. The purpose of the receiving end copper stud 291 is to connect the second receiving end circuit board 25 with the third receiving end circuit board 26. The external thread structure of the receiving end copper stud 291 can be passed through the second receiving end circuit board 25 and fixed with a nut, and the internal thread structure of the receiving end copper stud 291 is abutted against the third receiving end circuit board 26, and then fixed by passing through the third receiving end circuit board 26 with an ordinary screw. In this way, effective heat transfer can be achieved and heat dissipation efficiency can be improved. Specifically, multiple copper studs can be set in the area where electrical components are concentrated.

[0067] The energy transmission structure of the space-orbit centrifuge of this embodiment can be used for the wireless energy transmission receiving end, has a compact and stable structure, can meet the assembly requirements of the limited space of the space laboratory cabinet, and by arranging the heat conducting plate and the copper studs, can effectively transfer the heat of each circuit board, with good heat dissipation effect and stable performance.

[0068] Preferably, thermal conductive silicone grease is coated between the receiving end heat conducting plate 28 and the inner side surface of the energy transmission cover plate 27. Thermal conductive silicone further improves the heat dissipation performance.

[0069] Furthermore, a receiving end thermal pad is attached to a side surface of the receiving end thermal conductive plate 28 facing away from the energy transfer cover plate 27 .

[0070] like Figure 3 As shown, specifically, a handle 290 is provided on the outer side of the energy transmission cover plate 27 .

[0071] Optionally, a second assembly interval is reserved between the energy transmission cover plate 27 and the third receiving-end circuit board 26 , and a portion of the receiving-end screw 29 can be accommodated in the second assembly interval.

[0072] The method for manufacturing the energy transmission structure of the above-mentioned space on-orbit centrifuge comprises the following steps:

[0073] S1, making coils: using 200 strands of Litz wire to wind 14.5 turns in two layers to form a receiving end coil; specifically, firstly, in an insulating tooling disk, start from the inner lead end and wind the first layer of coils from the inside to the outside, and then wind the second layer of coils from the outside to the inside; when it is necessary to wind the third layer of coils, wind the third layer of coils from the inside to the outside, and wind the winding end from the bottom of the coil back to the inner lead end; both the coil lead end and the winding end are covered with heat shrink tubes, and tinned;

[0074] The receiving end coil 22 and the receiving end magnetic core 23 are tied and fixed in the receiving end coupler housing 2 by using nylon rope, and the receiving end coil 22 is not higher than the open end surface of the receiving end coupler housing 2 during the fixing; specifically, the receiving end magnetic core 23 and the receiving end coil 22 are installed in the receiving end coupler housing 2 in sequence, and the nylon wire is passed through the bottom through hole of the receiving end coupler housing 2, and is tied and positioned through the notch on the upper surface of the receiving end magnetic core 23; the bottom through hole of the receiving end coupler housing 2 is filled and leak detection is performed;

[0075] S2, (the coil core, etc. can be tested before potting as needed) Potting: Use organic solvents such as alcohol and acetone to clean the receiving end coil 22, the receiving end core 23, the receiving end coupler housing 2 and the receiving end insulating cover 21; weigh the M and N components of GN-521 silicone gel at 0.5kg:0.5kg, place them in a clean container, and mix them thoroughly at 23°C, paying attention to scraping the bottom and side walls of the mixing container. In order to ensure that there are no bubble defects in the rubber after vulcanization, place the mixed rubber together with the mixing container in a vacuum degassing equipment, and keep degassing for 3 minutes under a vacuum degree of not less than 98.7kPa. Perform the "glue filling-degassing again" operation according to the liquid level until it is filled without bubbles. Fill the coupler hole with GD414 and check for leaks.

[0076] Install the receiving end insulating cover plate 21 on the open end of the receiving end coupler housing 2, and slowly inject the organic silica gel into the second assembly space from the injection hole of the receiving end insulating cover plate 21;

[0077] After potting, vacuum degassing is performed, and the potting condition is observed after vulcanization; after vulcanization at 80°C for 4 hours, the potting condition is observed. Use ethanol cotton balls or isopropyl alcohol cotton balls to wipe off the excess glue outside the potting area. The potting method of this embodiment can also refer to the technical requirements for silicone rubber bonding and potting of aerospace electronic and electrical products.

[0078] S3, first install the second receiving end circuit board 25 in the middle position of the inner ring side of the receiving end coupler housing 2, then install the first receiving end circuit board 24 and the third receiving end circuit board 26, and then install the receiving end heat conduction plate 28 and the energy transfer cover plate 27 in sequence on the outside of the third receiving end circuit board 26. Glue pouring is to solidify the coil, which is a vacuum varnishing. Glue is poured inside the coupler and then vacuumed. The method is simpler and only targets the inside of the coil, and the outside does not need to be processed. It is conducive to space experiments. It has little impact on the health of astronauts.

[0079] The manufacturing method of this embodiment uses organic silicone to pot the transmitting end coil and the transmitting end magnetic core in the transmitting end coupler housing, and only performs curing treatment on the inside of the coil. The method is simple, can meet the wireless energy transmission requirements of the centrifuge load, and is also suitable for the limited assembly space of the centrifuge.

[0080] The shielding magnetic material (transmitter and receiver core) of this embodiment uses nanocrystalline alloy materials with high magnetic permeability, high saturation flux and high Curie temperature to replace the original ferrite sheet material. By using nanocrystalline materials, the shielding performance of the coupler is improved, the volume of the magnetic material is reduced, and through cutting and processing, the nanocrystalline magnetic material can not only adapt to the coupler structure shell, but also can achieve shielding on the bottom and sides. In order to meet the circular layout requirements of the wireless energy transmission coupler, the process method of this embodiment uses a slow-wire cutting method to reprocess the nanocrystalline rod-type magnetic core to meet the layout requirements while reducing the impact on the core characteristics. The coupler coil uses multi-strand enameled wire with low high-frequency impedance for planar skeleton-free winding; the coupler magnetic material and coil box are installed in the outer structure of the coupler in turn, and their mechanical properties are guaranteed by binding and silicone gel potting. The wireless energy transmission coupler is designed to be potted with a core and coil as a whole, with excellent stability and mechanical properties. The transmitting and receiving end coupler shells are made of polyimide.

[0081] like Figure 1 to Figure 4As shown, this embodiment also provides an energy transmission component, including the energy transmission structures of the above-mentioned two types of space in-orbit centrifuges; one energy transmission structure of the space in-orbit centrifuge is installed on the stator of the centrifuge as a wireless energy transmission transmitting end 100, and the other energy transmission structure of the space in-orbit centrifuge is installed on the rotor of the centrifuge as a wireless energy transmission receiving end 200; the transmitting end insulating cover plate 11 and the receiving end insulating cover plate 21 are arranged relatively spaced apart.

[0082] The energy transmission component of this embodiment can meet the energy transmission requirements of a space centrifuge, has a stable and reliable structure, and reduces wear and energy consumption.

[0083] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as limiting the present invention.

[0084] In addition, the terms "first" and "second" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In the description of the present invention, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0085] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0086] In the present invention, unless otherwise clearly specified and limited, a first feature being "above" or "below" a second feature may mean that the first and second features are in direct contact, or the first and second features are in indirect contact through an intermediate medium. Moreover, a first feature being "above", "above" or "above" a second feature may mean that the first feature is directly above or obliquely above the second feature, or simply means that the first feature is higher in level than the second feature. A first feature being "below", "below" or "below" a second feature may mean that the first feature is directly below or obliquely below the second feature, or simply means that the first feature is lower in level than the second feature.

[0087] In the description of this specification, the description with reference to the terms "one embodiment", "some embodiments", "example", "specific example", or "some examples" etc. means that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present invention. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described may be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art may combine and combine the different embodiments or examples described in this specification and the features of the different embodiments or examples, without contradiction.

[0088] Although the embodiments of the present invention have been shown and described above, it is to be understood that the above embodiments are exemplary and are not to be construed as limitations of the present invention. A person skilled in the art may change, modify, replace and vary the above embodiments within the scope of the present invention.

Claims

1. The energy transmission structure of the space on-orbit centrifuge is characterized by: It includes a transmitting end coupler housing, a transmitting end insulating cover plate, a transmitting end coil, a transmitting end magnetic core, a first transmitting end circuit board, a second transmitting end circuit board, a third transmitting end circuit board and a transmitting end heat conducting plate, wherein the transmitting end coupler housing and the transmitting end insulating cover plate are both annular, one side of the transmitting end coupler housing is an open structure, the transmitting end insulating cover plate is adapted to cover the open structure and encloses the transmitting end coupler housing to form a first assembly space, and the transmitting end coil and the transmitting end magnetic core are both installed in the first assembly space; The first transmitting end circuit board and the second transmitting end circuit board are arranged at intervals on the inner ring side of the transmitting end coupler housing, the third transmitting end circuit board is installed on the end face on the other side of the transmitting end coupler housing, and the second transmitting end circuit board is located between the first transmitting end circuit board and the third transmitting end circuit board; transmitting end copper studs are installed between the second transmitting end circuit board and the third transmitting end circuit board; a transmitting end heat conducting plate is also provided on a side of the third transmitting end circuit board away from the second transmitting end circuit board, and a fourth transmitting end circuit board and a transmitting end cover plate are also provided on the outer side of the transmitting end heat conducting plate, and the fourth transmitting end circuit board is located between the transmitting end cover plate and the transmitting end heat conducting plate.

2. The energy transmission structure of the space on-orbit centrifuge according to claim 1, characterized in that: A transmitting-end thermal pad is disposed on the inner surface of the transmitting-end thermal conductive plate. The transmitting-end thermal pad is mounted on the transmitting-end thermal conductive plate by bolts and guide pins. The transmitting-end thermal pad is in contact with the third transmitting-end circuit board.

3. The energy transmission structure of the space on-orbit centrifuge according to claim 1, characterized in that: The third transmitting-end circuit board is fixedly connected to the second transmitting-end circuit board by a plurality of transmitting-end screws, one of which is a copper screw; a first assembly interval is reserved between the middle of the transmitting-end heat conducting plate and the third transmitting-end circuit board, and the screw head of the transmitting-end screw and the screw head of the copper screw are both located in the first assembly interval; the screw head of the copper screw abuts against the transmitting-end heat conducting plate.

4. The method for manufacturing the energy transmission structure of an on-orbit centrifuge in space according to any one of claims 1 to 3, characterized in that: The following steps are involved: S1, making coils: using 500 strands of Litz wire, winding 8.5 turns in two layers to form a transmitting end coil; specifically, firstly, in an insulating tooling disk, starting from the inner lead end, tightly wind the first layer of coil from the inside to the outside, and then wind the second layer of coil from the outside to the inside; both the coil lead end and the winding end are covered with heat shrink tubes, and tinned; The transmitting end coil and the transmitting end magnetic core are tied and fixed in the transmitting end coupler housing by using nylon rope, and the transmitting end coil is not higher than the open end surface of the transmitting end coupler housing during fixing; S2, potting: clean the transmitting end coil, transmitting end magnetic core, transmitting end coupler housing and transmitting end insulation cover; Mix the organic silica gel and degas; Install the transmitting end insulation cover plate on the open end of the transmitting end coupler housing, and slowly inject the organic silica gel into the first assembly space from the injection hole of the transmitting end insulation cover plate; After potting, vacuum degassing is performed and the potting condition is observed after vulcanization; S3, first install the second transmitting end circuit board in the middle position of the inner ring side of the transmitting end coupler housing, then install the first transmitting end circuit board and the third transmitting end circuit board, and then install the transmitting end heat conduction plate and the fourth transmitting end circuit board in sequence on the outside of the third transmitting end circuit board.

5. The energy transmission structure of the space on-orbit centrifuge is characterized by: It includes a receiving end coupler housing, a receiving end insulating cover plate, a receiving end coil, a receiving end magnetic core, a first receiving end circuit board, a second receiving end circuit board, a third receiving end circuit board, an energy transfer cover plate and a receiving end heat conduction plate, wherein the receiving end coupler housing and the receiving end insulating cover plate are both annular, one side of the receiving end coupler housing is an open structure, the receiving end insulating cover plate is adapted to cover the open structure and enclose the receiving end coupler housing to form a second assembly space, and the receiving end coil and the receiving end magnetic core are both installed in the second assembly space; The first receiving-end circuit board and the second receiving-end circuit board are arranged at intervals on the inner ring side of the receiving-end coupler housing, the third receiving-end circuit board is installed on the end surface of the other side of the receiving-end coupler housing, and the second receiving-end circuit board is located between the first receiving-end circuit board and the third receiving-end circuit board; a receiving-end copper stud is installed between the second receiving-end circuit board and the third receiving-end circuit board, and the third receiving-end circuit board is fixedly connected to the second receiving-end circuit board by a plurality of receiving-end screws; The energy transfer cover is installed on the other side of the receiving end coupler housing, and the inner side surface of the energy transfer cover is provided with a receiving end heat conduction plate.

6. The energy transmission structure of the space on-orbit centrifuge according to claim 5, characterized in that: Thermal conductive silicone grease is coated between the receiving end heat conductive plate and the inner side surface of the energy transfer cover plate.

7. The energy transmission structure of the space on-orbit centrifuge according to claim 5, characterized in that: A receiving end thermal pad is attached to a side surface of the receiving end thermal conductive plate facing away from the energy transfer cover plate.

8. The energy transmission structure of the space on-orbit centrifuge according to claim 5, characterized in that: A handle is provided on the outer side of the energy transmission cover.

9. The method for manufacturing the energy transmission structure of an on-orbit centrifuge in space according to any one of claims 6 to 8, characterized in that: The following steps are involved: S1, making coils: using 200 strands of Litz wire to wind 14.5 turns in two layers to form a receiving end coil; specifically, firstly, in an insulating tooling disk, start from the inner lead end and wind the first layer of coils from the inside to the outside, and then wind the second layer of coils from the outside to the inside; when it is necessary to wind the third layer of coils, wind the third layer of coils from the inside to the outside, and wind the winding end from the bottom of the coil back to the inner lead end; both the coil lead end and the winding end are covered with heat shrink tubes, and tinned; The receiving end coil and the receiving end magnetic core are tied and fixed in the receiving end coupler housing by using nylon rope, and the receiving end coil is not higher than the open end surface of the receiving end coupler housing during fixing; S2, potting: clean the receiving end coil, receiving end magnetic core, receiving end coupler housing and receiving end insulation cover; mix and degas the organic silica gel; Install the receiving end insulation cover plate on the open end of the receiving end coupler housing, and slowly inject organic silica gel into the second assembly space from the injection hole of the receiving end insulation cover plate; After potting, vacuum degassing is performed and the potting condition is observed after vulcanization; S3, first install the second receiving end circuit board in the middle position of the inner ring side of the receiving end coupler housing, then install the first receiving end circuit board and the third receiving end circuit board, and then install the receiving end heat conduction plate and the energy transfer cover plate in sequence on the outside of the third receiving end circuit board.

10. An energy transmission component, characterized in that It comprises the energy transmission structure of an on-orbit space centrifuge as claimed in any one of claims 1 to 3 and the energy transmission structure of an on-orbit space centrifuge as claimed in any one of claims 6 to 8; the energy transmission structure of an on-orbit space centrifuge as claimed in any one of claims 1 to 3 is installed on the stator of the centrifuge as a wireless energy transmission transmitting end, and the energy transmission structure of an on-orbit space centrifuge as claimed in any one of claims 6 to 8 is installed on the rotor of the centrifuge as a wireless energy transmission receiving end; the insulating cover plate of the transmitting end and the insulating cover plate of the receiving end are arranged relatively spaced apart.

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