The present invention enables efficient transmission of a large current to a connection device, such as a switch or a connector, and to a contact thereof. A liquid metal switch of an embodiment comprises a liquid metal-impregnated sintered metal 12 in which a meshed sintered metal welded to a base electrode 11 is impregnated with a liquid metal, and a microneedle electrode 14 in which microneedles 14a with surfaces in a wet state due to a liquid metal coating 13 are arrayed on a plane facing the base electrode 11. In the liquid metal switch, a contact turns On/Off as the microneedles 14a of the microneedle electrode 14 with the liquid metal coating 13 thereon are inserted or removed with respect to the liquid metal-impregnated sintered metal 12 of the base electrode 11.
The purpose of the present invention is to develop a fast-rechargeable power supply connector. The present invention provides a connector having a contact structure that allows a large current to flow therethrough. In a contact-type power supply connector according to the present invention, a conductive layer 6 having a viscoelasticity is fixed between a rigid electrode 2 on the power-receiving side and a rigid electrode 1 on the power-transmitting side. At the time of power transmission, the two electrodes are pressed against the conductive layer 6 to deform the conductive layer 6, thereby increasing a contact area to obtain a low-contact resistance. In addition, a low-melting metal is disposed on the rigid electrode 2 and a surface of the conductive layer 6 having a viscoelasticity, and the low-melting metal is melted at the time of high-power transmission, thereby further increasing the contact area to achieve the low-contact resistance. In this manner, the connector exhibiting a small heat generation amount even during the high-power transmission is obtained.
B60L 5/00 - Collecteurs de courant pour lignes d'alimentation en énergie sur les véhicules propulsés électriquement
B66B 1/34 - Systèmes de commande des ascenseurs en général Détails
H01R 3/08 - Connexions conductrices de l'électricité non prévues ailleurs pour faire des connexions avec un liquide
B60L 53/16 - Connecteurs, p. ex. fiches ou prises, spécialement adaptés pour recharger des véhicules électriques
B60L 53/36 - Moyens pour l’ajustement automatique ou assisté de la position relative des dispositifs de charge et des véhicules par le positionnement du véhicule
B60L 53/37 - Moyens pour l’ajustement automatique ou assisté de la position relative des dispositifs de charge et des véhicules utilisant une détermination optique de la position, p. ex. à l'aide de caméras
H01R 13/03 - Contacts caractérisés par le matériau, p. ex. matériaux de plaquage ou de revêtement
B60M 1/02 - Lignes de courant d'alimentation en énergie en contact avec le collecteur porté par le véhicule Détails
3.
Electric power transmission system, and manufacturing method for electric power transmission system
In the present invention, junction capacitance is increased by stabilizing the junction capacitance of rotating electrodes such that a short circuit does not occur between the electrodes. Provided is a rotating electrode unit comprising a rotor electrode unit in which one or more rotor electrodes and one or more rotor spacers are alternately stacked, and a stator electrode unit in which one or more stator electrodes and one or more stator spacers are alternately stacked, wherein the rotating electrode unit is configured such that when the rotor electrodes are power transmitting electrodes, the stator electrodes are power receiving electrodes, when the rotor electrodes are power receiving electrodes, the stator electrodes are power transmitting electrodes, the rotor electrode unit and the stator electrode unit are combined in a nesting arrangement so as to be mutually rotatable, at least the outer peripheral section of the rotor electrodes is constituted by a member comprising a magnetic body, and the stator spacers have a magnet which attracts the outer peripheral section of the rotor electrodes via magnetic force.
H02J 50/00 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique
H02J 50/05 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique utilisant un couplage capacitif
H02J 50/40 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique utilisant plusieurs dispositifs de transmission ou de réception
H02K 16/02 - Machines avec un stator et deux rotors
H02K 1/2793 - Rotors faisant face axialement à des stators
H02K 15/03 - Procédés ou appareils spécialement adaptés à la fabrication, l'assemblage, l'entretien ou la réparation des machines dynamo-électriques des corps statoriques ou rotoriques comportant des aimants permanents
H02K 9/19 - Dispositions de refroidissement ou de ventilation pour machines avec enveloppe fermée et circuit fermé de refroidissement utilisant un agent de refroidissement liquide, p. ex. de l'huile
To provide a power transmission line that enables communications and the contactless supply of power, that is free from the risk of the penetration of dirt or dust, and radiates few electromagnetic waves. The abovementioned problem is solved by providing a power supply system with: a power transmission line 1 that comprises a cylindrical external conductor 102 having a slit extending longitudinally at the top and an internal conductor 101 positioned inside the external conductor 102 without touching the external conductor 102, and that transmits power from an AC power source at a prescribed wavelength; and a mobile carrier 600 that comprises a power receiving electrode 210 that contactlessly faces the internal conductor 101, that moves along the power transmission line 1, and that receives power from the power transmission line 1 through the formation of a junction capacity Cc1 by means of the internal conductor 101 and a power-receiving electrode 210, thereby supply a load. The internal conductor 101 has a groove G into which the power-receiving electrode 210 can be inserted, and the junction capacity Cc1 is formed in the groove G between the internal conductor 101 and the power-receiving electrode 210.
The present invention provides a power transmission line which is capable of contactless power supply and communication without the risk of electric shocks to persons nearby, is not affected by the placement of metal pieces in the vicinity thereof, and is not susceptible to contamination by dirt and dust. The power transmission line 1 is provided with an external conductor 102 and an internal conductor 101. A mobile conveying body 600 is provided with a power-receiving electrode and receives power from the power transmission line 1. A direct current transmission wire 2 transmits direct current power to the power transmission line 1. An inverter power source Vi converts the direct current power to alternating current power. A switch SW switches the current conducting state of a power-transmitting electrode on and off. The power-transmitting electrode 103 is connected to the internal conductor 101 via an insertion pin 104. The current conducting state of the power-transmitting electrode 103 is turned on for the portion of the power transmission line 1 where the mobile conveying body 600 is present, and the current conducting state of the power-transmitting electrode 103 is turned off for portions where the mobile conveying body 600 is not present, thereby solving the problem of the present invention.
In the present invention, junction capacitance is increased by stabilizing the junction capacitance of rotating electrodes such that a short circuit does not occur between the electrodes. Provided is a rotating electrode unit comprising a rotor electrode unit in which one or more rotor electrodes and one or more rotor spacers are alternately stacked, and a stator electrode unit in which one or more stator electrodes and one or more stator spacers are alternately stacked, wherein the rotating electrode unit is configured such that when the rotor electrodes are power transmitting electrodes, the stator electrodes are power receiving electrodes, when the rotor electrodes are power receiving electrodes, the stator electrodes are power transmitting electrodes, the rotor electrode unit and the stator electrode unit are combined in a nesting arrangement so as to be mutually rotatable, at least the outer peripheral section of the rotor electrodes is constituted by a member comprising a magnetic body, and the stator spacers have a magnet which attracts the outer peripheral section of the rotor electrodes via magnetic force.
An electric power supply system, to which the electric field coupling electric power transmission technology is applied, includes an electric power transmission electrode for transmitting electric power from an electric power source, an electric power reception electrode that is disposed so as to contactlessly face the electric power transmission electrode to form a junction capacitance, and receives the electric power transmitted from the electric power transmission electrode through the junction capacitance, and a plasma generation unit for generating a plasma in a space between the electric power transmission electrode and the electric power reception electrode in which the junction capacitance is formed.
The purpose of the present invention is to provide a method for stably increasing junction capacitance, and increasing safety by reducing electromagnetic radiation, and for increasing resistance to contamination by dust or the like. Provided is a power supply system to which field coupling power transmission technology is applied. A power transmission part 1 transmits power from a power source Vf having a predetermined wavelength. A power reception part 2 has a comb-shaped power reception electrode 22, and moves along the power transmission part 1. Locations on the power transmission part 1 that face the comb-shaped power reception electrodes 22 constitute multi-groove power transmission electrodes 12. The power reception part 2 receives power from the power transmission part 1 via a plurality of junction capacitors Cc formed by the multi-groove power transmission electrodes 12 and the comb-shaped power reception electrodes 22, and supplies the power to a load R. The power reception part 2 further includes, as a component thereof, a head fixing part 223, which is a spring member, and is movable along a curved part C of the power transmission part 1, with power being supplied to the load R.
The purpose of the present invention is to provide an electric power supply system that is superior to conventional systems.
This electric power supply system has a configuration in which: a fixed member 8 is provided with an inner conductor 9 arranged along the axial direction of the fixed member 8, an outer conductor 13 arranged along the axial direction of the fixed member 8 so as to cover the inner conductor 9, and a high-frequency conductive path dielectric 5 disposed between the inner conductor 9 and the outer conductor 13; a rotating member 7 is provided with an inner conductor 9 arranged along the axial direction of the rotating member 7, an outer conductor 13 arranged along the axial direction of the rotating member 7 so as to cover the inner conductor 9, and a high-frequency conductive path dielectric 5 disposed between the inner conductor 9 and the outer conductor 13; a high-frequency electric power source 27, the outer conductor 13 of the fixed member 8, the outer conductor 13 of the rotating member 7 and a load 26 are electrically connected so that it is possible to supply electric power from the high-frequency electric power source 27 to the load 26; and the fixed member 8 and the rotating member 7 are combined to form an electromagnetic wave attenuation structure for attenuating the electromagnetic waves emitted from the electric power supply system.
H02K 11/33 - Circuits d’entraînement, p. ex. circuits électroniques de puissance
H02K 11/028 - Dispositifs antiparasites associés au rotor
H01R 39/64 - Dispositifs pour le captage ininterrompu du courant
H01R 39/54 - Moyens auxiliaires pour l'amélioration du transfert de courant, ou pour la réduction ou la suppression des étincelles ou arcs par utilisation d'impédance entre les balais ou les segments
Provided is a method for widely using technologies such as the Internet of things (IoT) not only in factories, but in farming, fishing, and the like. Transport equipment provided with an electrical energy transmission means that transmits electrical energy at any point in a non-magnetic tube 11, wherein an internally-moving body 12 obtains electrical energy at any point in the non-magnetic tube 11 using a prescribed system, and is self-propelled inside the non-magnetic tube using a portion of the electrical energy. In addition, the internally-moving body 12 is provided with a magnet M that forms a magnetic field outside of the non-magnetic tube 11. An externally-moving body 17 is constrained by the magnetic field formed by the magnet M, and moves outside of the non-magnetic tube 11 as a result of being magnetically connected to the internally-moving body 12.
B60M 7/00 - Lignes ou rails d'alimentation en énergie spécialement adaptés pour véhicules à propulsion électrique d'un type particuliers, p. ex. véhicules suspendus, téléfériques, chemins de fer souterrains
B61B 13/08 - Systèmes à glissement ou à lévitation
B65G 54/02 - Transporteurs non mécaniques, non prévus ailleurs électrostatiques, électriques ou magnétiques
The present invention relates to electric field coupled power transmission technology, and the objective of the present invention is to increase and stabilize a junction capacitance in order to allow a high electric power to flow stably. This electric power transmitting system utilizes electric field coupled power transmission technology, and is provided with: a power transmitting unit which has a power transmitting electrode and which transmits electric power from an alternating-current power supply which has a prescribed wavelength; and a power receiving unit which has a power receiving electrode provided in such a way as to oppose the power transmitting electrode, and which receives the electric power from the power transmitting unit, by an insulating layer being provided on the power transmitting electrode and/or the power receiving electrode in order to form a junction capacitor, and supplies the received electric power to a load; wherein one or both of the power transmitting electrode and the power receiving electrode which form the junction capacitor are deformable, comprising a quasi non-contact type electrode which adopts a state in which the electrode is caused to deform and come into contact under a contact pressure at most equal to a prescribed contact pressure.
The purpose of the present invention is to realize, as an electrical power transmission system utilizing field coupling electrical power transmission technology, a system that maintains reliability even in long-term use. An electrical power transmission system 1 is provided with: transmission electrodes 6a, 6b and reception electrodes 8a, 8b that move relatively to one another and that form junction capacitances 3a, 3b in field coupling electrical power transmission technology; an insulation layer 13 disposed between the transmission electrodes 6a, 6b and the reception electrodes 8a, 8b; and a napped structure 11 disposed between the reception electrodes 8a, 8b and the insulation layer 13.
This electric power supply system, to which an electric field coupling electric power transmission technology is applied, establishes a technique for allowing long-distance electric power transmission, and also allowing communication and extraction of electric power at any point. A non-contact electric power transmission line 23 transmits electric power from an alternating-current power source Vf of a predetermined wavelength. A power receiving unit has a power receiving electrode, moves along the electric power transmission line, receives electric power from the non-contact electric power transmission line 23 by an electric field coupling electric power transmission technology, and supplies the electric power to a load. A direct-current electric power transmission line 24 transmits direct-current electric power. The non-contact electric power transmission line 23 is constituted by a plurality of unit sections 51 in which each of the unit sections 51 is a unit that has a length based on the predetermined wavelength and that generates a standing wave from the alternating-current power source Vf. Each of the plurality of unit sections 51 has an inverter 34 that converts direct-current electric power transmitted over the direct-current electric power transmission line 24 into alternating-current electric power having a predetermined wavelength.
H02J 50/05 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique utilisant un couplage capacitif
H02J 50/40 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique utilisant plusieurs dispositifs de transmission ou de réception
H02J 50/70 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique mettant en œuvre la réduction des champs de fuite électriques, magnétiques ou électromagnétiques
According to the present invention, an electric field coupling-type electric power transmission rotary body that can be utilized easily by a user and allows simplification of the axis structure when compared to conventional products is attained. The electric field coupling-type electric power transmission rotary body is provided with a fixed body and a rotary body that rotates about a certain shaft. Of the rotary body and the fixed body, one is located internally and is configured through lamination of, sequentially from the center of the shaft, a shaft body, a first insulation layer, and a first electrode. The other one is located externally and is configured through lamination of, sequentially from the center of the shaft, a second electrode that forms a pair with the first electrode to form a junction capacitance, a second insulation layer, and an outside surrounding body. Among the first electrode and the second electrode, one is segmented by a segmentation number equal to or larger than 2 and is connected to an alternating-current power supply, and the other is segmented less than the aforesaid segmentation number and is connected to a load via a control unit that controls the flow of current. The first electrode and the second electrode each have an insulation layer formed on the electrode surface facing the other, and slidingly move while in contact or slidingly move with a fluid layer interposed therebetween.
Provided is a power transmission system capable of transmitting power only in a necessary area. The system includes a plurality of adjacently arranged power transmitting apparatuses and a power receiving apparatus placed over at least two power transmitting apparatuses. The power transmitting apparatuses each include an AC power source device that generates an AC power source having a normal phase or a reverse phase, and a power transmission electrode coupled to the AC power source device. The power receiving apparatus includes: at least two power reception electrodes that are capacitivity-coupled with the respective power transmission electrodes provided to the at least two power transmitting apparatuses over which the power receiving apparatus is placed; at least two pairs of half-wave rectifier circuits that are each provided to the corresponding power reception electrode and that are provided with rectifying elements in different directions from each other; and an output terminal shared by the at least two pairs of half-wave rectifier circuits. The AC power source devices provided to the respective power transmitting apparatuses over which the power receiving apparatus is placed generate AC power sources having a phase which is opposite to the phase of the AC power source generated by the AC power source device provided to the adjacent power transmitting apparatus.
H02J 50/40 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique utilisant plusieurs dispositifs de transmission ou de réception
H02J 50/05 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique utilisant un couplage capacitif
H02J 50/70 - Circuits ou systèmes pour l'alimentation ou la distribution sans fil d'énergie électrique mettant en œuvre la réduction des champs de fuite électriques, magnétiques ou électromagnétiques
A power transmission system that can be used with electric field coupling power transmission technology, wherein two electrodes forming a coupled capacitor can smoothly move relative to each other. In this sliding-type or rotary-type power transfer system, which uses electric field coupling power transmission technology to transmit power, an electrode pair, which forms a coupled capacitor for electric field coupling power transmission, is constituted from an external conductor 22 and a connector external electrode 31. The exterior conductor 22 and a connector external electrode 31 move relative to each other. Pressing forces 82, 85, which have at least a component in a direction substantially perpendicular to the direction 83 of movement of the connector external electrode 31, act between the electrodes in the electrode pair, thereby providing a space having a minimum gap (d), which is caused by the repulsive forces generated when the connector external electrode 31 moves, between the electrodes.
An electric power supply system in which electric field coupling technology is used, wherein electric power is supplied in a stable manner irrespective of the gap interval. An electric power supply system to which electric field coupling power transmission technology is applied, wherein the electric power supply system is provided with: a power transmission electrode 21 for transmitting electric power from a power source; a power reception electrode 22 disposed so as to contactlessly face the power transmission electrode 21 to form a junction capacitance Cc, the power reception electrode 22 receiving the electric power transmitted from the power transmission electrode 21 through the junction capacitance Cc; and a high-voltage high-frequency power source 44 for generating a plasma P in a space between the power reception electrode 22 and the power transmission electrode 21 in which the junction capacitance Cc is formed.
The present invention stably supplies power regardless of a change in the arrangement of electrodes. A hybrid series resonant circuit comprises a series connection between a coupling capacitor 202 and a parallel connection part 201 that includes a parallel connection between a coil 211 and a resistor 212. The rate at which the output voltage Vout is reduced is low, even when a distance d is extended. That is, even if the distance d is extended to a certain extent, power can be supplied at a constant efficiency. Moreover, because the degree of reduction is gradual, the distance d does not form a pinpoint and series resonance defects can be resolved.
The purpose of the present invention is to provide an electric power supply system that is superior to conventional systems. This electric power supply system has a configuration in which: a fixed member 8 is provided with an inner conductor 9 arranged along the axial direction of the fixed member 8, an outer conductor 13 arranged along the axial direction of the fixed member 8 so as to cover the inner conductor 9, and a high-frequency conductive path dielectric 5 disposed between the inner conductor 9 and the outer conductor 13; a rotating member 7 is provided with an inner conductor 9 arranged along the axial direction of the rotating member 7, an outer conductor 13 arranged along the axial direction of the rotating member 7 so as to cover the inner conductor 9, and a high-frequency conductive path dielectric 5 disposed between the inner conductor 9 and the outer conductor 13; a high-frequency electric power source 27, the outer conductor 13 of the fixed member 8, the outer conductor 13 of the rotating member 7 and a load 26 are electrically connected so that it is possible to supply electric power from the high-frequency electric power source 27 to the load 26; and the fixed member 8 and the rotating member 7 are combined to form an electromagnetic wave attenuation structure for attenuating the electromagnetic waves emitted from the electric power supply system.
The present invention provides a power supply system that is superior to existing systems. Provided is a power supply system that supplies, via a shaft that is supported by a first bearing and a second bearing, power to a prescribed load from an alternating current power source, said power supply system making it possible to transmit power mutually between a body (15) and an outer conductor of a rotating shaft (2) via a first coupling capacitor that is composed of a sliding bearing outer ring (11) and sliding interface (13) of the first bearing, and the outer conductor of the rotating shaft (2), and also making it possible to transmit power mutually between a connecting conductive wire (14) and an inner conductor (9) of the rotating shaft (2) via a second coupling capacitor that is composed of the sliding bearing outer ring (11), sliding interface (13), and sliding bearing inner ring (12) of the second bearing.
H02J 5/00 - Circuits pour le transfert d'énergie électrique entre réseaux à courant alternatif et réseaux à courant continu
H01F 27/42 - Circuits spécialement adaptés à la modification ou la compensation des caractéristiques électriques des transformateurs, réactances ou bobines d'arrêt
22.
Power supply system, and fixed body and movable body therefor
H01F 38/04 - Adaptations de transformateurs ou d'inductances à des applications ou des fonctions spécifiques pour fonctionnement non linéaire pour modifier la fréquence
brevets
